Патент USA US2110140код для вставки
March 8, '1938. J. D. KLOPFENSTEIN 2,110,140 PRINTING MACHINE Filed Jan. 21,'1955 4 Sheets-Sheet 1 KZopfcnaZëL'n IN VEN TOR. BY QZ@ ¿1_ )LÃ ATTORNEY March 8, 1938. J. D. KLOPFÉNSTEIN 2,110,140 PRINTING- MACHINE Filed Jan. 2l, 1935 4 Sheets-Sheet 2 47 IN VEN T0. v ÁBY 85W.; MJLÁ ATTORNEY . ` ÍvÍarch 8, 1938. _ J. D. KLoPFENsTElN 2,110,140 PRINTING MACHINE Filed Jan. 2l, 1935 4 sheets-sheet- s Mw UH'I ' ÍNVENTOR. Klop f'e‘x-»Lsî'ein BY ' CMM- ¿LA ATTORNEY March 8, 1938. J. D. KLoPFENsTElN ' 2,110,140 PRINTING MACHINE Filed Jan. 21, - 1935 l * 4 sheets-sheet 4 ' ä Nm_m.,»I.ln4 - wn 4 4W\ mm4 @L4wnm 4, ._/«94|/á4`\JL. \I|.NW mw 4 _i 4 um@ nnu...n n.ul l . „iI.I@e imwm/ 4_hm,Hl:4hn d 4 .1,.4 ,--„_.4 @MR .Fm./@if4 1l ymm. UH.h4 a7.m S t“.n INVENTOR. / _ ATTORNÈY _ PatentedV Mar. i 8, 1938 N 2,110,140Í UNITED STATES PATENT ori-‘ICE PRINTING MACHINE Jesse D. Klopfenstein, Huntington, Ind., assigner, by direct and mesne assignments, to «Process Machine Corporation, Fort Wayne, Ind., a cor poration of Indiana. Application January 21, 1935, serial No. >2,695 10 Claims. The invention relates to machines by which to impress paint and other fluids in predetermined patterns orl arrangement on paper and other material that is fed to the machine. 5v . ' In recent years there has been developed a -method of producing advertising matter, posters, catalogs and other matter in which designs, pat terns, figures, letters, etc., are formed on paper, paper board or othermaterial by the use of sten 10 cil screens. ' The screen is formed of silk, copper wire,y or gandie or other suitable materials and the design is formed thereon. The screen is blocked off or made temporarily or permanently impervious ex 15 cept in the portion or portions thereof through „which an intended impression is to be made on secured to the shaft I2’meshes with a gear I1 se- , cured to the shaft I8 upon which shaft an inter mittent gear I9 is rigidly mounted. An inter mittent gear 20 meshes with the gear I 9 and with an intermittent gear 2l. The gear 20 is `secured to the shaft 22 that leads from a suitable differential 23 to which the drive shaft 24 is con nected. The drive shaft is driven in suitable manner, as by an electric motor 25. A cam 26 on the shaft 22 is engaged by an arm 10 21 that is secured to a rock shaft 28 adapted to rock the arms 29 that are pivoted respectively to the links 30. The links 30 are pivoted to a rod 3|., and the links 32 are pivoted to this rod and to the lower side of the platen 6 by all which 16 the platen is intermittently raised and lowered on the sheet of stock that is beneath the screen. its hinges _1. Generally the material has been forced through the screen by hand. Hand work is expensive and A series of transverse gripper-carrying bars 33 is carried by the chains. Each bar is suitably attached at its opposite ends to the two chains 20 and the vspacing between the bars is such that the sheet 34 of the stock upon which the stencil ing material is to be applied may be engaged by the bars successively without overlapping one 20 slow and more or less inaccurate in accomplish ing the desired result. ' The object of my invention is to provide a ma chine by which to effectively and efficiently ap ply iiuids through stencils- to various materials 25 or stock. Other objects and advantages will ap pear hereinafter. The invention is illustrated in the accompany ing drawings in which Figure 1 is a side elevational view of a machine 30 embodying the invention. Fig. 2 is a rear end elevational view of the ma-l chine.' . Fig. 3 is a plan view of the machine. Fig. 4 is a cross-section on line 4--4 of Fig. 2 35 illustrating the stock gripper in releasing posi ion. another. Each bar, Figs. 4, 5, supports aLsuit 25 able number of grippers 35, three such being shown. Each gripper consists of a tapered iinger 36. loosely keyed to the revolubly mounted shaft 31 so that it may accommodate varying thick nesses or irregularities in the stock 34. A spring 30 38 opposes this accommodation movement of the gripper. A finger 39 is secured to the shaft 31 and depends therefrom. This finger, when it contacts a cam 40 on the shaft I2 rocks the shaft 31 and thereby elevates- all the grippers to re 35. lease the imprinted sheet 34. Also when it con Fig. 5 is an elevational view in enlarged scale - tacts a cam 4I secured to the shaft 42 adjacent of one of the gripper bars. to the feed board 43, the grippers are opened to Fig. 6 is a cross-section on line 6-6 of Fig. 5 receive a sheet 34. A link 44 is eccentrically pivoted to the gear 40 ‘ Fig. '1 is a side elevational view of the feed table. I1 and at its lower end it is pivoted to a shoe 45 Referring to the illustrative drawings, I is that is slidably mounted on an arm 46 that is the frame consisting, in the present exemplifi pivoted at its lower end to a crank 41 secured cation,-of the uprights 2 and the side members to the shaft 48. A link 49 is pivoted to the crank 45 3 which support the top 4. An opening 5 is 41 and eccentrically pivoted to the intermittent 45 formed in the top in which a platen 6, normally gear 2|. An arm 50 is pivoted to a crank 5I below the top, is adapted to seat-with its top face secured to the opposite end of the shaft 48 on the flush with the adjacent surface of Athe top 4. opposite side of the machine. The links 52, 53 are The platen is hinged at 1 -to the upper side mem pivoted to the arms 46, 50 respectively and extend 4o and 50 bers 3. ’ ' ` . , Y _ v Two chains 8, 9 respectively engage thesprock ets III, II mounted' on the shaft I2, and they, also engage two >sprockets I3 on the shaft I4 supported at the forward end of the frame. Each chain 55 also engages an idler sprocket I5. A pinion I6 forwardly, their forward eñds being loosely 50 mounted on the spindles 54, 55 respectively which engage respectively in the lower ends of the end members 56, ,51 of the squeegee carriage 58. A rod 59 is attached at its lower end to the shoe 4l and a rack 6I) is secured to the upper end 55 2 - Y, " 22,110,140A of the rod. The rack slides in the guide bracket 6| which is secured to the arm 46 and the rack engages a gear 62 mounted on a shaft 63 sup ported by the bracket 6|. A rod 64 is connected at one end to the shaft 63 by a. universal coupling 65, a similar coupling 66 connecting the rod 64 to a shaft V61 carried by the bearing 68 mounted i on the' link 52. A pinion 69 on the shaft 61 meshes with a segment gear or rack 18. that is secured to the spindle 54. , ` The squeegee carriage 58 consists of the end members 56, 51 and the cross member 1|, having a suitable weight 12 thereon, ñxed to the upper ends of said members. Two squeegees 13, 14 are of the rod 86 is pivoted to one arm of a bell crank 81 pivoted at 88 to the frame member 2. A link 89 is pivoted to the other arm of the crank 81 and to the lower end of the hand operated lever 85. When the lever 85 is rocked as before described, the rod 86 draws the rod 3| forwardly or'toward the bell crank 81 thereby swinging the 10 links 38, 32 forwardly to shorten the link distance between the lever 29 and the platen. 'I‘he platen thereupon swings downwardly on its pivots and carrying the sheet 34 with it if one such is on the adjustably mounted on the cross member 1| by platen. the collars 15, r16, the squeegees being set atv a selected angle to each other. The lower edge of` A shaft 98 is connected to the diiîerential 23 and is connected to a bevelgear 9| that meshes _with a bevel gear 92 secured to the lower end of the shaft 93 suitably revolubly mounted on the each squeegee is _adapted to bear upon the screen 11 which is temporarily fixed in proper position» 20 ' that 'the rails are elevated. This is accomplished by the rod 86 that is connected to the rod 3| of the platen elevating devices. The opposite end on the top_4. The carriage pivots on the spindles 54, 55 so that-` either squeegee may be engaged on the screen. -The intermittent gears |1, 2| are so timed in their rotation that the link Y49 and bell cr‘ank 41 will cause the arms 46, 58 to 25 swing and draw the squeegee over the screen. l 15 main frame. A bevel gear 94 on the upper end of 20 the shaft 93 meshes with a bevel gear 95 secured to the shaft 42 to which shaft the cam 4| is secured. A second cam 96 is secured to the shaft 42 upon which bears a roller 91 mounted on a lever 98 that is secured to the shaft 99. A spring 25 |88 tends to retain the engagement of the roller The stenciling material, such asI paint, is de posited on the screen’ preferably beyond the pat 'with the cam. ' The levers |8|, |82 are secured tern, that is, in the- position where the squeegee to the shaft 99 and pivoted to the lower side of is at the -end of its stroke. The gear |9 is so the feed table 43, each lever having a right an 30 formed and set that the link 44 will' cause the gular projection |83 extending under the said 30 rack carrying rod 59 to reciprocate and cause table. The shaft 98 is rotated at a predeter the pinion to rotate and swing the segment gear mined speed and causes the cams 4|, 96 to rotate 18 which in turn swings the carriage so as 7to' at said speed. The cam 96 is so formed that it engage the other squeegee on the screen. In will intermittently permit the lever 98 to rock 35 Fig. l the carriage has completedits _forward upwardly, under the inñuence of the spring |88, 354 stroke. At the time the next' sheet of stock 34 l whereby the levers |8I, |82 are rocked rear is in position for receiving the impression the~ warolly to tilt the table 43, as shown in Fig. '1. rack bar 59 will ascend and the pinion 69 will The continued rotation of the cam 96 then de-` cause the rack 18 to rock the carriage, causing presses the lever 98 and the levers |8|, |82 rock forwardly and not only return the table to a hori 40 40 the squeegee 13 to rise and the squeegee 14 to .l zontal position but also move it longitudinally 'contact with the screen. The arms 46, 58 im mediately thereafter cause the carriage to move so that itsy free end will engage andline up the gripper bar 33 that by this time has come to rest to the left or rearwardly. in the loading'position. The spring I 84 assures Two spindles 18, 19 are fixed to the end mem 45 bers 56, 51.respectively, of the carriage 58` and f. contact of the bar with the guard |85 so that 45 the rollers 88 are mounted on the spindles. These the bar isin proper loading position with respect rollers _are adapted to engage the rails 8| which to the guides |86, |81 that are adjustably mount ed on the table 43. 'I‘his movement of the table are vmounted adjacent to the upper frame mem bers 3 for longitudinal and upwardmovement. is desirable, since a bar 33 may not always stop 50 Normally the rollers do not. engage the, rails. at the correct point due to 'stretching of the The railsafford means' by which to elevate the chains 8, 9 or variations therein. Also the ver carriage and the squeegee when necessary or tical movement of the table clears the gripper preferable to prevent forcing the stenciling'ma bar that is approaching the feeding station. The _ terial- through the screen, as where a sheet fails throw of the table 43 being uniform it will move to reach the stenciling station or is not register-_` any bar, that comes to rest short of the correct 55 ing properly at said station. The means for loading position, to that position and line it up, vmoving the`rails comprises two levers 82 that the slack in_the chains permitting such move are suitably pivotally mounted on the hangers 83 depending from the upper frame members 3 and pivotally connected at their upper ends- to the rear ends ofthe rails. A link y84 is pivoted at one end to one of the levers 82 and at its opposite end it is pivoted to a hand operated lever- 85 that is pivotally mounted on one of the uprights 65 2. By rocking the long arm of the lever 85 down wardly the short arm thereof causes the levers 82 and the rails to swing upwardly and longi tudinally. The rear end of 4each rail is bevelled as shown at 83, Fig. 1 and said end engages a.' sloping surface arranged adjacentV to the frame ment. ' . ' _ - ' vIn the correct loading position of the bar 33 a sheet of the stockv is inserted _under the grippers 60 35 which are elevated by the lug =39 having con tacted the cam or abutment 4I. The chains then carry the bar and its attached sheet 34 to the impression station under the`screen, the sheet then contacting the inclinedplaten. - 'I'he bar 33 65 is engaged in the offset |88 in the platen as the latter rises and is thereby lined up and the spring ' |89 moves the bar against the guard ||8 so that the bar is properly located at~the imprinting station. u _ ~ _ _ Any suitable means to receive the imprinted member 3. The rails as they rise engage the rollers 88 and elevate the carriage and the 'sheet after it leaves the impression station will.. squeegee is thereby withdrawn from the stencil suiiìce. In Figs. 1 and >3, I show Va roller ||l ing material on the screen. ` > _ _ mounted on the shaft l2 upon which is engaged a The platen 6 is also lowered at the same time belt | I2 that'also engages a. roller ||3 revolubly -' 70 2,110,140 mounted on a shaft H3 carried by the main frame. 'I'he sheet, being held at one end by the gripper-s on the bar 33 that is moving it, will tend to sag or drop. The belt will support it and prevent its contact with any part of the machine, and when the grippers release it, the belt will convey it off the machine Where it may be received or handled in any convenient manner. What I claim is: 1. A machine of the class described comprising a stencil, means to support the stencil, a conveyor - . ` 3 of the~feed table and are engaged and alined by said table, the next stage of movement‘of the conveyor carrying the bars loaded with the prod uct to be treated successively above the platen to an imprinting station, means to rock the platen upwardly to engage the product on the bottom of the stencil screen, a squeegee carrier, means to reciprocate the ' carrier, means to rock the carrier at the end of each reciprocation whereby to contact a squeegee with the stencil screen. - 5. In a machine'of the class described the com having a plurality of spaced gripper-carrying members thereon each member adapted to engage bination with a stencil screen, a substance on the screen suitable for stenciling and means to suc a sheet of the material to be treated and carry 15 the same beneath the stencil, means to drive the cessively support sheets of material to be stenciled conveyor intermittently, 'intermittently actuated means to support the material in contact with the lower'side of the stencil and having means thereon to aline the gripper bars relatively to the stencil reciprocable means' to force an im zo printing substance through the stencil 0n to the material, said reciprocable means including a ,pair of squeegees and means to alternately en gage. the squeegees on the stencil. 2.5- 2. A machine of the class described comprising a stencil, means to support the stencil, a con veyor having a. plurality of gripper-carrying members thereon, each said member being adapted to engage the material to be treated, »30 means to intermittently drive the conveyor ' whereby each gripper is moved to a. loading sta tion, then to an imprinting station under the stencil and iinally to a discharge station, means to open the grippers at the loading station and at the dischargev station, means at the imprint ing station to cause the Amaterial to firmly en gage the bottom side of the stencil and adapted to aline the gripper carrying member relatively to the stencil screen and reciprocable means to .40 force an imprinting substance through the sten cil von to the material said latter means includ 10 in contact with the screen, of means to force the substance through the screen and consisting of a carrier, two >squeegees on the carrier, means to move the carrier to and fro and means having connection with the-,carrier to rock the carrier for alternate gravital engagement of the squeegees 20 with the screen whereby to force the substance through the screen onto a shee't of material dur ing each movement of the carrier. 6. In a machine of the class described the com bination with a stencil screen and means to 25 successively support material to be treated in contact with the lower surface of the screen of means to force through the screen a substance deposited thereon and adapted to pass through the same, comprising a carrier having two- op positely inclined squeegees thereon adapted to 30 alternately engage the screen under the influence of gravity, intermittently actuated rocking mem bers having connection with the carrier for mov ing it back and forth, a reciprocable member 35 carried by one of the rocking members and hav ing a connection with the carrier to intermittently rock the carrier and alternately contact the squeegees with the screen and force the said sub stance through said screen onto the material dur ing each movement of the carrier. 40 ing a squeegee carrier and means to intermit 7. In a machine of the class described, the com ` tently _reciprocate the carrier in opposite direc bination with astencil screen, and means to suc tions across the stencil. cessively support sheets of material to be stenciled 3. A machine of the class described compris-» in contact with the stencil screen, of means to " ing a stencil screen, means to support the stencil force an imprinting material through the screen screen, a conveyor having a plurality of gripper and comprising a cross member, two oppositely carrying-members thereon, means to intermit tently drive the conveyor whereby the gripper carrying members are successively moved to a> 50 loading station, to an imprinting station under the stencil screen and to a discharge station, a pivotally mounted feed table at the loading sta tion adapted to engage and aline >each gripper carrying-member, means at the loading and the discharge stations to open the grippers, a platen hinged for movement toward and from the screen and adapted to aline the gripper bars and a car-rier having two squeegees thereon, means to 60 inclined squeegees mounted on the cross mem ber, and dependingmembers rigidly connected to the opposite ends of the cross member, spindles 50 rigidly engaged in the end members and means connected to thespindles for reciprocating the cross member and to cause the squeegees to alter nately engage the screen. 8. In a machine of the class described, the 55 combination with a stencil screen, and means to successively support sheets of material in contactwith the screen, of means to force imprinting material through the screen and comprising a ' intermittently reciprocate the carrier and means ` cross-member two oppositely inclined squeegees to rock the carrier at the end of each stroke thereof whereby to alternately contact , the y squeegees with the stencil screen. 4. A machine of the .class described comprising 65 a frame, a top carried by the frame and having an opening therein, a stencil screen secured to , the'top and extending across the opening, a -platen hinged to the frame below the top and _adapted to be swung upwardly to close the said opening, a pivotally mounted feedl table at the forward end of the frame, an endless conveyor having thereon a plurality of transverse »gripper carrying bars, means to drive the conveyor inter mittently whereby the said bars `are moved in 75 succession to loading position adjacent to an end mounted on the cross-member, end members at tached to the opposite ends of the cross-member 60 respectively, and depending therefrom, spindles projecting laterally from the end members re-, spectively a pair of rocker arms, means to rock said arms intermittently in opposite directions, links pivotally connected to the rocker arms and to the spindles respectively, a rack mounted on one of the- spindles and means to oscillate the rack intermittently in opposite directions to cause the squeegees to be alternately presented to the 70 imprinting material. ` 9. In a machinel of the class described, the' combination with a stencil screen and means to support sheets of material in contact 'with the 4 ‘ n ' 2,110,140 screen, -Aof an intermittently driven conveyor to~ from the platen, intermittently operated means '3 carry the sheets to and from. ,the support suc cessively, and a tilting feed table adjacent to the conveyor on which the sheets are fed successively to the conveyor. Y . 10. In a Amachine of the class described the combination with a frame, stencil screen attached to the frame, a platen hingedy to the frame below to rock the platen toward the screen for con tacting the sheets'with the'screen, means to apply a stenciling substance through the screen and onto the sheets, a hinged feed table adjacent to the carrier on which the sheets are fed successively to the carrier and means to intermittently swing the table into alinement with the conveyor. the screen, an intermittently operated conveyor 10 to carry sheets of material successively onto and JESSE D. KLOPFENSTEIN.