US1541592A - Shearing machine - Google Patents

Description

W. SCHWEBKE SHEARING MACHINE June 9, 1925. 1,544,592

Filed b 21, 1924 2 sheets sneet 1 June 9, 1925.-

W. SCHWEBKE SHEARING MACHINE 2 Sheets-Sheet 2 INVENTOR. A \Sohweb k0,

Filed Feb, 21, 1924 lllllllllli ATTORNEY.

Patented June 9, 1925.

u-Nir Areaforrrloe."

. 2 snneamennon-mn Application filed February 1' 0 alhuho'mit may concern Be it knownthat I','-1 v nL'i;E1rSoriwnnKE, a citizen of tlie', United States, residing at Beloit, in the county" of Roc'lrand State of lVisconsi n, have invented certain, new and useful Improvements in ShearingiMaehines,

of which the following is a specification.

.Tlns invention relatesto a shearing machine designed pr marily for the use ofgarfor itsobje'c t togprov-ide, inamannerj as hereinafter ,setforth, a newjand novel icon struction o'fmachine (for expeditiously ',.cut-

ting ,elastic webbing be'lt loops,1cloth coat hangers and .all narrow gaugec lo't'h anaterlal which Ehas been heretofore cut by hand,

whereby the cutting operation is greatly facilitated, and theeinploynient' of hand labor dispensed, with,

Further objects of the invention are to provide, in a manner as hereinafterset forth a shearing inachine'for the purpose referred to,1 which is. simple in its construction and arrangement, strong, compact, thoroughly efiicientand convenient "in its use, readily assen'ibled and comparatively inexpensive to set up. i

' dvith the view, the invention consists of 'thefnovel construction, combination and arrangement of parts, as hereinafter nore specifically described and illustratedin the accompanying drawings, wherein is shown an embodiment of the invention; but it is to be understood that changes, variations and, modifications can be resorted to'which come within the scope of the claims hereunto appended.

In the drawings whereii'rlikereference characters denote corresponding 1 parts throughout the several'views:-

Figure 1 is a topplan view of a shearing.

machine in accordance-with this invention.

Figure 2 is a side elevation thereof. Figure. .is a fragmentary view, in front elevation, of the base and standard.

Figure 4 is a front elevation of a modified form;

Figure is a side elevation of the form shown in Figure 3. i v Figure 6 is a fragmentary view,'in sec tion, of either of the forms. I

lheniaterial operated upon by a shearing machine, in accordance with'thi's invention,

foregoing; and other objects in 2 1, .1324; Serial No. 694,351.

1 (is set up in 'roll-likefman and mounted upon I a reel or spool andis unwound from the ihaving its upper or free end formed with a vertically disposed cylindrical guide;10. The head member 9, rearwardly of the guide 10, has a verticallydisposed lug 11 formed integral therewith-and which projects above the top of the guide 10. i I Secured to the front of the standard 7, at the upper end thereof, as well as being voverlapped by the bottom of'the head anember is axrec'tangular table orxpjlatform' 12 of substantial length and which is provided atone end with a boss 13, to which the bracket '5 is secured. The table or platform 12 is: formed in proximity, to its 'otherxend with a rectangular opening 14. The table 12 ha ){IIPBXCGDSlQll' 12 interposed between the standard and-member 9 and secured by the hold-fast deVicesStheretQ. V

The table or platform 12,,intermediate its ends, is provided with a transverse slot 15, which has one end positioned at a pointrenioved from the outer side edge of the plat intermediate its ends, is provided with for- ,wardly directed lugs 19 and between the lugs 19' the flange 17Ihas a slot 20,'which registers with an opening 21 formed in the front of the standard 7, near the upper end 1 thereof; The slots 15 and 20 and opening 21 provide clearances for the operation of a cutter bar or knife 22, when the latter is shifted to and from operative position; The base 6, at the front thereof and directly'below the. slot- 15, is provided with a pair of upstanding lugs 23, and extending between saidllugs 23 is a depending stein 2 1 ofa foot treadle25. The stem 24 is pivotally connected to the lugs 23, as at 26. The stem 24 depends into the base 6 and is pivotally connected, as at 27, to a rearwardly extended link 28, having its rear end pivotally connected, as at 29, to an upstanding lever 30, and the latter is of a length to eX-' tend into the head member 9. The upper portion of the lever is offset with respect to the lower portion, as indicated at 31. The lever 30, at a point in proximity to the offset portion 31 thereof, is mounted upon a pivot 32 secured in spaced bosses integral with the standard 7. The lever 30 extends up through the standard 7 and is pivotally ing link which projects from the rear of the head member 9 and is pivotally connected, as at 36, to the forward arm 37 of a bell crank lever 38, which is pivotally mounted, as at 38 on an arm 9 extended from the head 9. The other arm of the lever 38 is indicated at 39, and is provided with a pin 40 which extends into a peripheral groove 41, formed in a clutching member 42, which rotates with and is slidably connected to an operating shaft 43.

Secured to the rear of the standard 7, near the top thereof, is a support 44, provided intermediate the top thereof with a standard 45, and said support has formed integral therewith and projecting from one side thereof an angle-shaped arm 46. The shaft 43 is mounted at one end on the upper portion of the arm 46, and said shaft 43 J 18 also mounted in and projects from the standard 45. Loosely mounted upon the shaft 43 is a drive pulley 47, provided with a clutch member 48, which is engaged by the clutch member 42, whereby the pulley 47 is coupled with the shaft 43 to provide for the operation thereof.

Fixed to that end of the shaft 43 which projects from the standard 45, is a circular disk 49, having an eccentrically disposed pin 50 to which the lower end of a link 51 is connected, as at 52.

Pivotally connected to the upper end of the lug 11, as at 53, is a plunger operating lever 54, having its rear end offset, as at 55, and with said rear end pivoted, as at 56, to the upper end of the link 51.

The forward end of the lever 54, is off set as at 57, and secured to the lever 54, by the hold-fast devices 58, is an offset plate 59 Which opposes the offset portion 57 of the lever 54, as well as being spaced therefrom. The offset portion 57, as well as the plate 59, is formed with a lengthwise extending slot 60.

Operating through the guide 10, is a plunger 61, provided at its upper end with a transverse pin 62 slidably mounted in the 5 slot 60 of the offset portion 57 and plate 59,

whereby the plunger 61 is slidably connected to the lever 54, so that on the operation of the lever 54 of the plunger 61 will be carried therewith.

The cutter bar or knife 22 is of substan-- tial length and width and is pivotally connected at its forward end, as at 63, to the 65 of substantial length which opens at the rear end thereof, and extending through the slot 65 1s a pm 66 carried by the lugs 19, and by this arrangement the cutter bar or knife is slidably connected to the lugs 19. connected, as at 34, to a rearwardly eXtend- With respect to the operation of a machine constructed in the manner as stated, it will be assumed that the reel or roll of material has been mounted in position upon the platform or table 12. The operator positions himself forwardly of the platform 12 and unwindsthe material until the web 2 thereof is withdrawn a sufficient length to position it under the knife 22, so that the web can be cut in any length desired. After the web has been positioned under the knife, the operator depresses the foot treadle whereby the lever 31, in connection with the link 35, will actuate the bell crank lever to shift the clutch member 41 into engagement with the clutch member '48, whereby the shaft 43 will be operated from the pulley 47. When the shaft 43 is operated, the plate 49 is carried therewith actuating the link 51 which causes the oscilla tion of the lever 54, whereby the plunger 61 is reciprocated and the 'knifeor cutter operated to cut the material. This, operation is continued as long as the operator applies the necessary pressure to the foot treadle. The forcing of the plunger downward carries the knife therewith and imparts to the knife a downward and backward movement giving thereto a slicing action caused by the knife travelling upon the guide pin 66 and which insures a perfect severing of the material at a minimum pressure. The slots 15 and 20, as well as the opening 21, provide a clearance for the movement or travel of the knife when operated by the plunger. connection between the plunger and lever 54 compensates for the are created by the radius described during the movement of the forward end of the lever 54. The severed material is pushed to the left by the left hand and discharged through the opening 14 in the platform 12.

In the form shown inFigures 4. and 5, the knife or cutter 67 is operated manually, but it is of the same construction as the knife or cutter 22. The plunger operating lever 68 is of similar construction to the plunger operating lever 64, and this statement applies to the plunger guide 69 and plunger 70 with respect to the guide 10 The pin and slot I form 12. V v In Figures 4i and '5, 72indicates a base, 7 3 a hollow standard .fomnedintegral there.

.with, 74 a .head member of. curved contour, and which hasv its upper,end;,pro ect1ng forwardly. -The head member 74 is connected. to the top ofthe standardZS by hold-fast devices 75, and said head member 74 has an upstanding lug .7 6 to which the 1 lever-.68 is pivoted, as at77.

The standard 73, near its lower end, it. formed with a pair of lugs 78 to which is pivotally connected, as at: 79, a spring controlled foot operated lever 80, which extends into the standards 73 and has its inner end pivoted, as at 81, to the lower end of a vertically disposed operating rod 82 and which projects up through the standard 73, as well as through the rear of the head member 7% and is pivotally connected, as at 83, to the rear end of the lever 68. The lever 80, at its forward end has pivotally connected, as at 84, a foottreadle 85. Attached to the lever 80, as at 86, is a controlling spring 87, which is connected as at 88, to the standard 73.

The table 71 is provided with the slots and 20, and the standard 73 with the opening 21. The table 71 has a lug 19 and a guide pin 66. lVith respect to the table and standard of either form of machine, they are constructed in the same manner as shown in Figure 6.

When operating the form of machine shown in Figures 4 and 5, the operator til depresses the outer end of the lever 80 against the action of the spring 87 and which elevates the rod 82, whereby the lever 68 is rocked on its pivot 77 and the plunger lowered, and on the lowering of the plunger a sheer cut is had by the knife 67 on the material.

The table 71 has a'boss 89 for the reception of the real support or bracket 5, and a pair of wear plates 90 between which the knife operates.

It is thought that the many advantages of a shearing machine constructed in a manner as illustrated and described and for the purpose set forth, can be readily understood, and although the. preferred embodiment of the invention is as referred to, yet it is to be understood that changes in the details of construction can be had which will fall within the scope of the invention as claimed.

\Vhat I claim is 1. A machine for the purpose set forth comprising a slotted material support, a lengthwise slotted knife operating through the slot of the support for shearing the material on the support, a guide pin carried by the support and operating in the slot of the knife, meansconnected'to the;forward fl endof the knife for imparting a downward ,and ,rearward movement thereto toprovide ;for the shearing of thematerial by the knife, a pivotedwlever,slidahly ,clonnected to said means, and means connected with the rear ,end of .the lever forvoperating it.

2. A machine for the purpose set forth comprising a slotted material .sup,port, a

' lengthwise slotted knife operatingthrough the (slot of the support for shearing the material on the support, a guide pincanried bythesupport and operating in the-,slot of theknife, aneans connected to the forward end ofthe knife for imparting a downward and rearward movement thereto to provide for the shearing of the material by the knife, and said support provided at one end with means for connecting with the support a carrier from which the material is unwound, and said support further provided with an opening for the discharge of the sheared material,

3. Al machine for the purpose set forth comprising a slotted material support, a lengthwise slot-ted knife operating through the slot of the support for shearing the material on the support, a guide pin carried by the support and operating in the slot of the knife, means connected to the forward end of the knife for imparting a downward and rearward movement thereto to provide for the shearingof the material by the knife, a pivoted lever slidably connected to said means, means connected with the rear end' of the lever for shifting it, said support provided at one end with means for connecting with the support a carrier from which the material is unwound, and said support further provided with an opening for the discharge of the sheared material.

4. A machine for the purpose set forth comprising a standard, a support for the material to be sheared, said sup-port of substantial length and width and slotted intermediate its ends and further secured to said standard, said standard provided with an opening registering with the slotted portion of the support, a lengthwise slotted knife having its rear end permanently extending in the slotted portion of the support, a guide pin carried by the support and operating in the slot of the knife, means connected to the outer end of the knife for imparting thereto a downward and rearward movement, whereby the knife will shift through the slotted portion of the support and said opening for shearing the material upon the support, a head member secured to said standard and having a forwardly projecting upper end provided with a guide for said means, and a shift-able operating lever pivotally supported on said head member and slidably connected with said means for operating the same for shifting the knife.

& v

5. A machine for the purpose set forth comprising a standard, a support for the material to be sheared, said support of substantial length and Width and slotted intermediate its ends and further secured to said standard, said standard provided with an opening registering with the slotted portion of the support, a lengthwise slotted knife having its rear end pern'ianentlv extending in the slotted portion of the support, a guide pin carried by the support and operating in the slot of the knife, means eonneeted to the outer-end of the knife for imparting thereto a downward and rearward movement, whereby the knife will shift through the slotted portion of the support and said opening for shearing the material upon the support, a head member secured to said standard and having a forwardly projecting upper end provided with a guide for said means, a shiftable operating lever pivotally supported on said head member and slidably ronneeted with said means for operating the same for shifting the knife, and means conneeted to said lever for shifting it, said last mentioned means including a foot treadle.

In testimony whereof, I afiix my signature hereto.

WALTER sonwnenn.

Images