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Publication numberUS3908525 A
Publication typeGrant
Publication dateSep 30, 1975
Filing dateJan 2, 1974
Priority dateFeb 18, 1972
Publication numberUS 3908525 A, US 3908525A, US-A-3908525, US3908525 A, US3908525A
InventorsJohnson Roy B, Ristvedt Victor G
Original AssigneeJohnson Roy B, Ristvedt Victor G
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Coin wrapper forming apparatus
US 3908525 A
Abstract
A machine for forming coin wrappers in which paper from a roll is cut into prescribed lengths and formed into paper cylinders within a selected cavity of a drum or turret having several cylindrical cavities, each with a diameter corresponding to a currently used coin. A paper cylinder is so formed, a crimping-ejection device engages one end of it, crimps that end and then ejects it as a completed coin wrapper.
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Ristvedt et al.

[ 1 COIN WRAPPER FORMING APPARATUS [76] Inventors: Victor G. Ristvedt, Rt. 2. Forest Wood Dr.; Roy B. Johnson, 603 Adams St., both of Manchester. Tenn. 37355 [22] Filed: Jan. 2. 1974 [21] Appl. No.: 429,952

Related US. Application Data [63] Continuation of Serv No. 227.452. Feb. 18. 1972.

Pat. No, 3.830.142

[52] US. Cl 93/81 MT; 93/365 R; 93/81 R [51] Int. Cl. B31C 1/02 [58] Field of Search... 93/368. 81 MT, 81 R. 77 R. 93/94 R, 36.5 R. 36.5 SS; 53/211. 212

[56] References Cited UNITED STATES PATENTS 1.536.481 5/1925 Dickey 229/872 11] 3,908,525 [4 1 Sept. 30, 1975 3.105.421 10/1963 Petri 93/81 MT 3.237.536 3/1966 Ristvedt et a1. 93/81 R 3.432.983 3/ 1 969 Pico11o 3.518.923 7/1970 Buchholz et a1. 3.777.631 12/1973 Trash 93/81 R Prinmry E.\aminerGranville Y. Custer, Jr. ASS/S111!!! Examiner-James F. Coan [5 7] ABSTRACT 7 Claims, 10 Drawing Figures US. Patent Sept. 30,1975 Sheet 1 of4 US. Patent Sept. 30,1975 Sheet 2 of4 3,908,525

. Qlv

US. Patent Sept. 30,1975 Sheet 3 of4 3,908,525

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FIG. 8

LEGEND US. Patent Sept. 30,1975 Sheet 4 of4 3,908,525

F "F T Y A FEED l I PRINT l ||2 235 DISENGAGE l I I FORMING ROLLER l I 230 I 9lg l 305 l CUTTER L i i l OPERATION I 305 l I I I FORM TUBE I 20 I I 305 I CRIMP i q OPERATION l75 ll5 I I l l EJECT I i I WRAPPER I Fl G. 9

fi' ISB I L 4 24 43G 4z FIG. IO

COIN WRAPPER FORMING APPARATUS This is a continuation of application bearing Ser. No. 227,452, filed Feb. 18, 1972, now US. Pat. No. 3,830,142.

BACKGROUND OF THE INVENTION This invention relates to machines for forming strips of papers into wrappers for coins and more particularly to apparatus for selectively making coin wrappers for different size coins.

DESCRIPTION OF THE PRIOR ART Establishment, such as banks which handle a large volume of coins, generally purchase wrappers readymade. One difficulty with this arrangement is that the wrappers require a substantial amount of storage space. Second, they are relatively expensive to purchase when one would consider the significantly lower cost of the paper involved. Thus it is clearly of an advantage to be able to fabricate the wrappers at point of usage, that is, by the establishment which fills the wrappers with coins. While a number of machines have been proposed for this purpose, the applicants are unaware of the general acceptance by wrapper users of any of the heretofore proposed such machines.

One of the reasons it is believed for such failure has been that prior machines have generally only had the capability of manufacturing one size wrapper and thus a typical user would require four machines to handle current denominations of the most-used U.S. coins. Another reason appears to be that such machines have been bulky, cumbersome, difficulty to operate, and expensive.

SUMMARY OF THE INVENTION Accordingly it is an object of this invention to provide a machine for the manufacture of coin wrappers which accommodates four sizes of coins and thus enabling the user to purchase only a single machine in stead of four. I

A further object of this invention is to provide an improved apparatus for forming or manufacturing coin wrappers which is of relatively simple construction, is

relatively jam-proof and can be operated by unskilled personnel.

These and other objects, features and advantages are accomplished by the present invention which may be briefly described as follows. A roll of paper of a width to form a desired size coin wrapper is fed by a feed roller to a paper cutter which repetitively cuts the paper into predetermined lengths or strips. These strips are then fed into a cylindrical cavity which thus forms the strip into a cylinder conforming to the size of the cavity. A crimping tool operated synchronously with the forming of the paper cylinder engages an edge of it as it is being formed and crimps one end of it. After crimping the new formed coin wrapper is extracted through an open end of the cavity and the operation repeated at a rate of approximately 37 per minute.

BRIEF DESCRIPTION OF THE DRAWINGS FIG: 1 is a perspective view of an embodiment of the invention with certain of the components moved apart of clarity.

FIG. 2 is a perspective view of a coin wrapper manufactured by the machine.

FIG. 3 is a perspective view of the paper cutting portion of the machine.

FIG. 4 is a perspective view of the feed roller assembly of the machine.

FIG. 5 is a perspective view of a detail of construction of the portion of the machine employed to adjust the machine for different coin wrapper sizes.

FIG. 6 is a perspective view ofa portion ofthe crimping and ejection mechanisms of the machine.

FIG. 7 is a perspective view ofa cam mechanism employed in the synchronization of the operation of the paper drive roller and crimper and ejector mechanisms of the machine.

FIG. 8 is a persepctive view of a portion of the wrapper forming mechanism of the machine.

FIG. 9 is a timing charrt relating the various operations of the machine.

FIG. 10 is an electrical schematic diagram of the electrical interconnections of the machine.

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to the drawings, there is shown in FIG. 1 a perspective view of coin wrapper machine 10. Machine 10 is mounted on a rectangular base plate 12, with components supported by two vertically disposed mounting plates 14 and 16. Vertical plate 14, equal in width dimension to base plate 12, is secured thereto at each end 18 and 20 by extension members 22 and 24, being positioned near forward edge 26 of base plate 12. Vertical plate 16 is centrally secured at rear end 28 to base plate 12 by extension member 30 and is supported at opposite or forward end 32 by vertical plate 14. Portions of vertical plates 14 and 16, as shown in FIG. 1, are cut out so as to more clearly show certain details of machine construction. The continuous production of coin wrappers 34 (FIG. 2). requires that six basic operations be performed as follows; feeding, printing, cutting, forming, crimping and ejecting. These operations are synchronized and executed during each revolution of timing shaft assembly 36, which includes timing shaft 38, paper feed roller 40 (FIG. 4) cutter blade actuating cam 42 (FIG. 1), forming roller control cam 44 and crimper-ejector control cam 46 (FIG. 7). Timing shaft 38 is centrally journalled and driven by speed reducer 48, shown with portions of case removed, mounted to vertical plate 16 by means not shown. Shaft 38 is further supported at forward end 50 by bearing, not shown, in vertical plate 14. Speed reducer 48 is powered by an electric motor, as indicated by phantom lines 52 from V-pulley 54, mounted to motor shaft 56, and input pulley 58 of speed reducer 48 coupled by V- belt 60.

Paper roll stock 62 to be processed is supported by paper roll support 64. Paper roll support 64, moved to the side for clarity, consists of mounting bracker 66 in turn supported by vertical plate 14 and includes central shaft 68. A conical core support 70 is rotatably secured to end 72 of shaft 68. A removable core support 74 is attached to the other end 76 and it is slidably retained on shaft 68 being locked thereto by knurled knob 83 attached to locking means not shown. Attached to the vertical plate 14, and spring biased by tension spring 77, is a brake rod assembly 78, which frictionally engages the outer surface of roll 62 and acts as a brake to dampen rotational movements of roll stock 62. As paper is exhausted, switch actuating pin 79 attached to brake rod assembly 78, opens microswitch 81 to halt machine operation. Paper strip 82 to be processed is about the outer periphery 90 of feed roller 40 which engage paper strip 82 and are of sufficient length to as sure that paper strip 82 is fed the desired length of one wrapper blank 92 (FIG. 3). fed 106 knob Spaced parallel strips 88 are positioned such that leading ends 94 are in alignment with zero timing mark 96 on feed roller 40, edges 98 and 100 being positioned near ends 102 and 104, respectively, of feed roller 40.

Feed roller 40 includes inner turret assembly 106 provided with four selectable printing pads Pl through P4 (FIG. 4), and is centrally supported by a throughshaft 110, and locked in rotary position by detent spring 112 engaging indentations 114 of locking ring 116. Pads Pl-P4 are mounted to curved surfaces 118 of riser portions 120 of turret assembly 106 and project outward through aperture 122 of cylindrical feed roller 40. As feed roller 40 rotates, pads 108 are supplied with ink by cylindrical ink pad 124, rotatably journalled by shaft 126, and adjustably mounted by eccentric stud 130 to vertical plate 14 in the position shown by phantom lines 128 (FIG. 1). As paper strip 82 is being ged to machine 10, inked pads 108 apply pressure against upper surface 132 (FIG. 3) of paper strip 82 as it is passed between feed roller 40 and pressure roller 86 to print a suitable legend 134 on wrapper blank 92 (FIG..3). Turret assembly 206 is manually positioned by external adjust know 136 secured to through-support-shaft 110. Pressure roller 86 is rotatably supported by through-pin 138 within transverse slot 140 formed in elongated paper guide plate 142 (FIG. 4).

Paper guide plate 142 is adjustably secured at one end 144 by C-shaped screw clamps 146 (only one being shown) to paper guide mounting bracket assembly 148. Guide bracket assembly 148 is pivotally attached to vertical support plate 14 by elongated mounting stud 150, threadably retained by an eccentric adjusting pin. not shown. Paper guide plate 142 is biased upward by tension spring 152 to contact an adjustable upper limit stop, not shown. which limits guide plate 142 in a position to assure that sufficient pressure is applied between pressure roller 86 and feed roller 40, to feed paper strip 82. Forward end 154 of guide plate 142 is configured, as shown in FIG. 1, into intersecting diagonal edges 156 and 158. To facilitate loading machine 10, guide plate 142 is manually pivoted to disengage pressure roller 86, by extension tab 160 attached to under surface 162 near forward end 154 of plate 142. To prevent strip 82 from wrinkling, an upper guide bracket 164 is secured to vertical plate 14 in close proximity to upper surface 132 of paper strip 82.

As paper strip 82 is pushed along paper guide 142 by feed roller 40 it passes through cutter assembly 166 (FIG. 3) and is supported by a second and stationary paper guide 168, mounted to vertical plate 14 (FIG. 1), in horizontal alignment with but at a lower elevation than pivotally mounted guide plate 142.

An upper guide bracket 170 is mounted in close proximity to wrapper blank 92 and is provided with compartment 172 dimensioned to contain a lubricant block 174 such as paraffin, retained by spring clip 176. Lubricant block 174 is a gravity force contact with blank 92 and provides a surface lubricant for the subsequent forming operation. At the termination of each feed cycle, pointed end 178 of blank 92 is injected a short distance into a selected forming cavity C1-C4 (FIG. 1), to be further described, and is severed from strip by cutter 166, shown in greater detail in FIG. 3. Cutter 166 includes two underlying cutter bars 180 and 182 and shearing engagement with cutting edges 184 and 186 respectively, of upper cooperating blade mem ber 188. The trailing edge 190 of wrapper blank 92 is diagonally cut in one continuous line 192 as the leading edge 194 of the following strip 92 is configured into a point 178 by removal of triangular scrap 179. Cutter assembly 166 is securely attached by bolt 196 (FIG. 1) to vertical guide rod 200. Elongated cutter bar 180 is secured to upper portion 202 of tubular mounting bracket 198 by screws 204 and extends diagonally across and beneath the path of paper strip 82, being spaced intermediate support plates 142 and 168, and with cutting edge 206 adjacent pivotally mounted paper support plate 142.

Wrapper blank 92 is configured into a pointed edge 178, as previously mentioned, by a second intersecting cutter bar 182 pivotally supported near forward end 154 by bolt 208 to mounting arm 210 of support plate 142, and projecting beneath paper strip 92 into undercut recess 212 of elongated cutter bar 180. Cutter bar 182 is mounted such that cutting edge 214 faces mounting bracket 198. Upper cooperating blade member 188 is secured to and about guide rod 200 and has longitudinal cutting edge 184 held in spring biased engagement with cutting edge 206 of cutter bar 180. Transverse cutting edge 186 of upper blade member 188 is adapted to engage cutting edge 214 of intersecting cutter bar 182. Cutter bar 182 is held in a shearing engagement with upper blade member 188 by U- shaped spring 218, inserted between edge 220 of cutter bar 186 and leading edge 154 of support plate 142. Cutter blade 188 is biased upward by compression spring 222 allowing space 224 for free passage of paper strip 82 between upper blade member 188 and lower cutter bars 180 and 182. Upper blade member 188 is depressed by rocker arm 226 having pressure roller 228 mounted near end 230 in contact with upper cylindrical portion 232 of guide rod 200 and is pivotally supported at a point 234 intermediate ends 230 and 236 by stud mount 238, threadably secured to vertical plate 14 (FIG. 1). Cam follower roller 240 mounted near vertically inclined end 236 of rocker arm 226 is adapted to engage cutter control cam 42 secured to timing shaft 38. As riser portions 242 of control cam 42 elevates rocker arm 226 is pivoted clockwise, applying a downward motion to guide rod 200 and thus cutter blade 188 to sever a wrapper blank 92. As the cutting operation is completed, drive roller 224 captures severed wrapper blank 92 and pushes it into one of selected forming cavities C1-C4. This action occurs as follows. Drive roller 224, having high frictional surface 246 formed of live rubber or other material such 'as polyurethane, etc, is mounted to one end 248 of drive shaft 250 rotatably supported by bearing 252 formed at end 254 of rocker arm 256. Power for driving roller 244 is derived from V pulley 258 mounted to motor shaft 56 interconnected by V-belts 260 and 262, respectively, through intermediate idler 264 and V pulley 266 secured to end 268 of drive shaft 250. Controlled lifting and lowering of drive roller 244 is provided to rocker arm 256 being attached intermediate ends 254 and 270 to mounting stud 272 slidably secured to vertical plate 14. End 270 of rocker arm 256 extends beneath timing shaft 38 and is equipped with cam follower roller 274 adapted to engage forming roller control cam 44. As riser portion 276 of control cam 44 depresses cam follower roller 274, rocker arm 256 is rotated counterclockwise and thus lifts drive roller 244. Drive roller 244 is spring biased clockwise by touching spring 278. Disposed directly below drive roller 244 and axially adjustable thereto is idler roller 280, journalled by idler shaft 282 rotatably attached to vertical plate 14. Idler 280 cooperates with drive roller 244 to grip wrapper blank 92 pushing it into one of selected forming cavitites C1-C4 forming turret assembly 284. Forming turret assembly 284 includes cylindrical forming body member 286 provided with selectable longitudinal cavities C1, C2, C3 and C4, bored to a diameter suitable for forming tubes of desired sizes, and provided with access slots S1, S2, S3 and S4, respectively, through which wrapper blank 92 is inserted and formed. Forming turret assembly 284 is supported by elongated bar mounting bracket 288, pivotally attached to vertical plate 14 by bolt 290 and provided with centrally attached bearing 292 adapted to journal selector shaft 294. Forming assembly 284 is'locked in normal operating position by spring slip 285 attached to outer end 287 of mounting bracket 288, in latching engagement with catch 289, adjustably mounted to vertical plate 14. Forming body member 286 is secured to end 296 of selector shaft 294 through central mounting bore 298 and is locked in a selectable radial position by annular locking ring 300. Annular locking ring 300, secured adjacent mounting bar 288 to selector shaft 294, is provided with appropriately spaced transverse peripheral notches 302 adapted to accept locking pin 304, threadably secured to vertical mounting plate 14. Forming body 286, shown in the normal operating position, is selectably rotated. in a manner to be described by knurled knob 306 secured to selector shaft 294.

As wrapper blank 92 is injected into one of selector forming cavity C1, FIG. 1, a multiple ply paper tube 308, FIG. 6, is formed and continues to rotate within cavity C1, being driven by forming roller 244. The outer edge 310 of this tube 308 is crimped or rolled into an inwardly disposed toroid configuration 312 (FIG. 6) by crimper assembly 314 under the control of crimper-ejector control cam 46 in a manner to be described. Crimper assembly 314 comprises two hookshaped cooperating crimping members 316 and 318. An upper member 316 is slidably supported within tubular mounting fixture 320 and a second member 318 is rigidly affixed thereto. Movable upper member 316 is provided with shank portion 322 overlying fixed member 318 and has bias cut surface 326 configured to engage the outer periphery 328 of rotating tube 308 and has an inner edge contacting surface 330, generally circular, so as to initially form edge 310 of tube 308 inwardly. Fixed crimping member 318 is provided with an opposing circular edge contacting surface 332 which forms edge 310 outwardly toward circular inner surface 330 of movable forming member 316. When the crimp members 316 and 318 are thus engaged the rolling operation is performed repeatedly to form a multiple roll edge 312. Movable crimping member 316 is disengaged by compression spring 334 acting between outer end 336 of mounting fixture 320 and spring retainer 338 secured to outer end 340 of movable crimping member 316.

One end 336 of mounting fixture 320 extends through and is securely affixed within aperture 350 formed in one end 352 of bar mounting arm 354 which is secured at the opposite end 356 to guide rod 348, by similar mounting aperture 358. Crimp member 316 is spring biased into a crimping engagement with member 318 by flexible spring coupler 360 adjustably mounted at one end 362 to function selector arm 364, and has free end 366 in contact with spring retainer 338 at outer end 340 of crimp member 316. As multiple rolls are formed during the crimp operation, toroidal portion 312 increases in diameter, urging upper crimp member 316 outward against spring coupler 360. Selector arm 364 is pivotally attached through aligned apertures 368 of mounting lugs 370 to mounting arm 354 by through pin 372, and is controlled by selector rod 374 attached to vertically disposed mounting tab 376. Selector rod 374 is spring biased by compression spring 334 into engagement with roller 378, vertically attached to mounting arm 380, threadably supported by vertical plate 14.

Guide rod 348, slidably supported by linear bearing 382, FIG. 1, is coupled to crimper control lever 384 by linkage assembly 386 which includes linear bearing 388, slidably engaged with actuating arm 390, attached to rear end 392 of guide rod 348, and pivotally attached to forward end 394 of crimper control lever 384. Control lever 384 is pivotally attached at a point 396 intermediate ends 394 and 398 to aft end 400 of paper edge sensing lever 402, and is spring biased counterclockwise by tension spring 404 acting between rear end 398 and vertical plate 14 (FIG. 7). Clockwise rotation is controlled by cam follower roller 406, secured to control lever 384 at a point intermediate pivotal point 396 and end 398. As cam follower roller 406 I engages riser portion 408 of crimper-ejector control cam 46, control lever 384 is rotated clockwise, and thus through actuating arm 390, extends guide rod 348. The operating range of guide rod 348 is controlled by paper edgesensing lever 402 pivotally suspended at a point 410 intermediate ends 412 and 400 to vertical plate 16 by mounting bracket 414. Sensing lever 402 is biased clockwise by spring 404 acting through control lever 384 pivotally suspended at rear end 400 of sensing lever 402, and thus end 412 is held in contacting engagement with one of spaced range select studs 415, 416, 418 and 420 projecting rearward from the secured to adjust knob 306, FIG. 5.

Fault detection microswitches 424 and 426 (FIGS. 4 and 8) are mounted to vertical plate 14 and have switch actuating arms 428 and 430 extending immediately forward of feed roller 40 and drive roller 244, respectively, which detect malfunctions of feeding and forming operations. If paper accumulates forward of feed roller 40 or drive roller 244 switches are opened to inhibit drive motor and halt operation.

FIG. 10 is a schematic representation of the electrical wiring of coin wrapper machine 10. VAC is coupled to input terminals T, and T A circuit breaker 432 in series with common line T provides overload protection for drive motor M. Master switch 434 is connected between input terminal T, and junction of switches 81 and 426. One end 438 of coil L of relay 437 is connected to common line T and switch 424 feeds opposite end 436. Paper fault detection microswitches 424 and 426 are normally closed. Paper exhaust microswitch 81 is closed when a supply of paper remains. and

cover door interlock 442 is opended when access door of cover (not shown) is opened. Power switch 444 is shown is power of position. As coil L of relay 437 is energized contacts 446 complete the circuit to drive motor M.

OPERATION Before loading paper into machine 10, the denomination of wrapper 34 to be made is selected and the proper forming cavity, C1 for instance, is appropriately positioned as follows. Crimper assembly mounting bracket 354 is pulled fully forward. While hold guide rod 348 in this position, tube forming assembly 284 is released by disengaging spring clip 285. Assembly 284 is lowered and forming body 286 is rotated to align selected forming cavity C1-C4, with idler 280. Crimper assembly is then pushed upward and latched in place. then crimper 354 is slowly returned to full in position. Finally knob 136 is rotated to select the correct legend to be printed on wrapper 34.

Coin wrappers for various denominations of coins are formed of predetermined widths of roll stock 62. Once the proper width roll 62 has been selected, it is installed and locked on paper roll support 64, shown detached from machine in FIG. 1. To install roll stock 62, brake rod assembly 78 is lifted and from core support ,74 is disengaged by loosening locking knob 83. Re-

move Core support 74 and place roll stock 62 about rear conical support 70 so that paper unrolls in a clock- ,wise direction. Then front support 74 is replaced by pressing firmly against roll stock 62 and twisting knob 77 to lock the roll stock 62 in place. Before loading, momentarily depress and release master switch 434 until zero mark 96 of feed roller 40 is in approximately the 2oclock position as shown in FIG. 1.

For operation. to feed leading end of roll 62, disengage pressure roller 86 by pushing release tab 160 of guide plate 142 downward. While holding it in this position route strip 82 around paper guide 84 and slide paper strip 82 between feed roller 40 and pressure roller 86. Be careful to place paper strip 82 between upper guide brackets 164 and 170 and lower guide plates 142 and 168, and to extend the end of the paper beneath lubricant bar 174. Push inward until rear edge 80 of strip 82 is in contact with vertical plate 14. While holding paper 82 firmly in this position, gently release tab 160. Again jog master switch 434 until a segment of paper is completely severed from strip 82. Remove this segment by sliding it forward from between cover plate 170 and guide plate 168. Machine 10 is now ready to produce wrappers 34, as soon as power is applied.

Since a cutting operation has just been completed and the segmennt or scrap has been removed from forward guide plate 168, no wrapper blank 92 is available for processing, as power is applied to motor 52. Feed roller 40 rotates counterclockwise as indicated by arrow 434. As zero timing mark 96 of feed roller 40 approaches the 6 oclock position and is in alignment with zero reference line 436, of paper guide 142, machine 10 is said to be in a zero rotation position, as illustrated by zero degree line of function chart, FIG. 9. As feed roller 40 begins one cycle of rotation in a counterclockwise direction, paper strip 82 is frictionally engaged between strips 88 of feed roller 40 and pressure roller 86. Thus as paper is drawn from roll stock 62, it is pushed along guide plates 142 and 168, respectively (Waveform A). After approximately 20 degrees of rotation printing pad P1 engages upper surface 132 of paper 82 and a suitable legend is printed between 20 and 40 degrees near trailing edge 192 of wrapper blank 92 (Waveform B). At 112, forming roller 244 is lifted from engagement with idler roller 280 by rocker arm 256, under the control of forming drive roller control cam 44.

At approximately 180 the pointed end 178 of strip 82 is injected a short distance into forming cavity C1, passing between drive roller 244 and idler 280 (Waveform C). At 190, the paper feed cycle is completed as the trailing edges 438 of high friction strips 88 pass through zero reference line 436 of paper guide plate 142. Between 192 and 230 a wrapper blank 92 is severed from strip 82 as cutter blade 188 is depressed by rocker arm 226 under the control of cutter control cam 42 (Waveform D). As blank 92 is severed from strip 82 the leading edge 194 of the following blank is held in clamped position between blade member 188 and cutter bar 182, by tension spring 152, attached to paper guide plate 142.

The forming operation begins at 235 as wrapper blank 92 is gripped between high friction forming roller 244 and idler roller 280, as roller 244 is lowered into engagement by rocker arm 256, under control of forming roller control cam 44. The leading edge 178 of blank 92 is forced into cavity C1 encircling idler 280 and underlapping the next portion of blank 92, forming a two or three ply paper tube, depending upon the size of the cavity selected. This tube continues to rotate in a clockwise direction, becoming perfectly formed, during a portion a cycle between 235 and 305 (Waveform E). Note that between 230 and 305, upper blade 188 of cutter assembly 166 returns to the fully up position so as to accept another blank 92 (Waveform D). At 305, guide rod 348 is retracted by tension spring 404, at a rate determined by the shape of riser portion 408 of crimper control cam 46. As the guide rod is thus retracted, crimper assembly 314 moves inward and crimp member 316 engages outer edge 310 of rotating tube 308 (FIG. 6) to form a multiple roll crimp 312, as previously described. The crimping operation continues through 360 and is completed at approximately 1 12 rotation of the next cycle of feed roller 40 (Waveform F) as guide rod 348 is fully retracted. Note that drive roller 244 is again lifted at 112 by rocker arm 256, releasing paper tube 308. As timing mark 96 again passes zero reference line 436 on guide plate 142, a second feed cycle begins (Waveform A) wherein paper is again drawn from roll 62, provided with a suitable legend between 20 and 40, and pushed along guide plates 142 and 168.

Coin wrapper 34 is now completed and crimping members 316 and 318 are locked to the rolled edge 312 of tube 308. As guide rod 348 is extended by crimping control lever 384, tube 308 is extracted from cavity C1 between and rotation (Waveform G). As guide rod 348 extends, selector rod 374 is disengaged from roller 378. Upper crimp member 316 is then disengaged by compression spring 334, unlocking rolled end 312 and allowing coin wrapper to drop away.

Thus cavity C1 is now free to accept the leading edge 178 of the following blank 92 at 180, and thence the cycle repeats as described above.

As illustrated in FIG. 1, roller 280 is smaller than any of the cavities (C1, C2. C3 or C4) and is mounted about an axis 282 which is spaced from. but parallel to.

the axis of a cavity. This. of course, is necessary in order to. as shown. perform the decribed operation of feeding a wrapper away from the rollers onto a cavity wall so that a diameter of the wrapper be determined by the diameter of the cavity and not the roller.

It is believed that it will be apparent from the foregoing description that the machine of this invention overcomes the difficulties which such machines have had in the past. It not only provides for the manufacture of four sizes of coins instead of one but the construction is such that the operation is quite simple. Only minimum servicing is required and in the event of a paper jam in the machine nothing need be disassembled in order to remove the jammed paper since paper handling is by cantilevered members throughout.

We claim:

1. A coin wrapper forming apparatus comprising:

supply means for continuously supplying lengths of paper of a predetermined length and width;

wrapper forming means comprising:

at least one forming member including a fixed nonrotating cylindrical inner wall defining at least one cylindrical cavity, said inner wall having a longitudinal slot adapted to receive the width dimension of a said length of paper, and there being an end opening in said cavity;

feed means including means for receiving a said length of paper and feeding same through said slot into said cylindrical cavity and around and against said wall for forming a paper cylinder on said wall comprising: i

a first roller positioned adjacent said longitudinal slot and about an axis outside of said cylindrical cavity, which axis is parallel to the longitudinal axis of said cylindrical cavity,

means for rotating said first roller, and

a second roller smaller in diameter than said cylindrical cavity adjacent said slot within said cylindrical cavity about an axis parallel to and spaced from the longitudinal axis of said cavity, said second roller being driven by roller contact with said first roller through the thickness of a said paper as a said length of paper is fed by said first roller between said rollers onto, against, and around the wall of said cavity, forming a wrapper corresponding to the wall of said cavity and larger than the diameter of said second roller; crimping means operating synchronously with the formation of a said paper cylinder for crimping one end of a said paper cylinder; and ejection means operating synchronously with the completion of the crimping ofa said paper cylinder for ejecting a said paper cylinder from said cavity as a completed coin wrapper. 2. A coin wrapper forming apparatus as set forth in claim 1 further comprising drive means for driving said supply means and wherein said crimping means and ejection means are coupled to said drive means.

3. A coin wrapper forming apparatus as set forth in claim 1 wherein said supply means comprises:

drive means for continuously supplying a predetermined width of paper; and cutter menas for repetitively cutting predetermined lengths of paper supplied by said drive means.

4. A coin wrapper forming apparatus comprising:

supply means for continuously supplying lengths of paper of a predetermined length and width comprising:

cutting means for repetitively cutting predetermined lengths of paper supplied by drive means.

drive means for continuously supplying a predetermined width of paper including a drum and guide means, said guide means comprising:

an elongated plate pivoted at one end and being positioned adjacent said cutting means at its opposite end, and

a roller supported by said elongated plate intermediate its ends, and said roller being positioned adjacent said drum for causing paper positioned between said drum and said roller to be fed to said cutting means, and wherein paper may be inserted or removed by pivotally moving said elongated plate away from said drum; and

wrapper forming means comprising:

at least one forming member including a fixed nonrotating cylindrical inner wall defining at least one cylindrical cavity, said inner wall having a longitudinal slot adapted to receive the width dimension of a said length of paper. and there being an end opening in said cavity,

feed means including means for receiving a said length of paper and feeding same through said slot into said cylindrical cavity and around and against said wall for forming a paper cylinder on said wall comprising:

a first roller positioned adjacent said longitudinal slot and about an axis outside of said cylindrical cavity, which axis is parallel to the longitudinal axis of said cylindrical cavity,

means for rotating said first roller. and

a second roller positioned adjacent said slot within said cylindrical cavity about an axis parallel to the longitudinal axis of said cavity, said second roller being driven by roller contact with said first roller through the thickness of a said paper as a said length of paper is fed by said roller between said rollers onto, against, and around the wall of said cavity,

crimping means operating synchronously with the formation of a said paper cylinder for crimping one end of a said paper cylinder; and

ejection means operating synchronously with the completion of the crimping of a said paper cylinder for ejecting a said paper cylinder from said cavity as a completed coin wrapper.

5. A coin wrapper forming apparatus as set forth in claim 4 wherein said cutting means comprises means responsive to said drive means for diagonally cutting the leading edge of said paper.

6. A coin wrapper forming apparatus as set forth in claim 5 wherein said cutting means further comprises means for cutting a second and reverse diagonal cut in a portion of said leading edge whereby the leading edge is made triangular.

7. A coin wrapper forming apparatus as set forth in claim 6 wherein said means for cutting said second reverse diagonal cut includes a blade mounted on said elongated plate.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1536481 *Aug 31, 1922May 5, 1925Standard Coin Wrappers IncCoin package
US3105421 *Sep 19, 1961Oct 1, 1963 Coin wrapper forming apparatus
US3237536 *Jun 27, 1963Mar 1, 1966Brandt Automatic Cashier CoPre-crimped coin wrapper forming machine
US3432983 *Sep 12, 1966Mar 18, 1969Picollo GiacomoAutomatic coin stacking and wrapping machine
US3518923 *Aug 11, 1967Jul 7, 1970Brandt Automatic Cashier CoPre-crimped coin wrapper forming apparatus
US3777631 *Jul 21, 1971Dec 11, 1973Union Carbide CorpApparatus for forming a cylinder
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5992286 *Feb 14, 1997Nov 30, 1999Boole; LeonApparatus for opening coin wrappers
Classifications
U.S. Classification493/287, 493/303, 493/27
International ClassificationB31C1/00
Cooperative ClassificationB31C1/00
European ClassificationB31C1/00