Патент USA US2133750код для вставки
Oct, 18, 1938. 2,133,750 T. H. MARS ET Al. HYDRAULIC MAT ROLLER Filed Feb. 23, 1957 4 Sheets-Sheet l _ @NÀM E ___ ____ „È @N1wwwFW; _w \1 _ _ _ _ _ _ Oct, 18, 1938. T. H. MARS _ET AL 2,133,750 HYDRAULIC MAT ROLLER Filed Feb. 23', 1957 gf . 4 Sheets-Sheet 2 Oct. 18, 1938. T. H. MARS ET AL, v 2,133,750 HYDRAULIC MAT ROLLER - Filed Feb. 23, 1957 @i u u »a u w «E -8 ë U Nè u à "l, u u.“ vu /lu (u1 ‘1: ~ l 4 Sheets-Sheet 3 f _ I ä \uuuu ‘ù l” o c3 É ‘Q m w gn su "‘/ mm u1 „en u d î? Ñ œ |,\ u. m u Il:- 2 É?! P( rg) ‘1R N‘ u' È ‘Ñ u uKs 'N Ü ‘w fz; Ä È .r i u uUs ’ œ QQ I l ‘ H WA ha . uw l' _' um N Ñ , u _w u w @o ‘ß Ñ ‘à X1 M 1 @s u\uuu gu “ . su' Í I .È r\ “l ~ ~ » u 'ff' _" - *fw Éd R“ N > \ u u N N ' \ ‘ïïáu a à _ 0st. îß, E938, T. H. MARS ET AL 2,133,750 HYDRAULI C MAT ROLLER Filed Feb. 25, 1937 4 Sheets-Sheet 4 WMS Patented Oct. 18, 1938 2,133,750 UNITED STATES PATENT OFFICE l 2,133,750 HYDRAULIC MAT ROLLER Thomas H. Mars and Herbert C. Behrens, Battle Creek, Mich., assignors to Duplex Printing Press Company, Battle Creek, Mich., a corpo ration of Michigan Application February 23, 1937, Serial No. 127,306 20 Claims. This invention is a novel improvement in ma chines for pressing pieces of “iiong” onto the printing surfaces of a type form to receive an intaglio impression therefrom, and preliminarily I) form a matrix from which stereotype plates 'can be subsequently cast. Such machines are ordi narily called in the trade “mat rollers”. Objects of our invention are (1) to provide a novel mat roller machine in which all driving parts are inside the framing; (2) to provide a machine in which the bed can be reciprocated Without the employment of gears; (3) to pro vide a machine which is economical to manufac ture and operates quietly and smoothly; (4) to provide a novel hydraulic operative means for reciprocating the bed; and (5) to provide a machine which is very Iconvenient to the oper ator and has no moving parts projecting outside of the frame whereby the operator or other per sons beside the machine might be caught or in jured. Other objects of the invention -will be hereinafter disclosed. In the accompanying drawings we have illus trated one practical embodiment of the inven " tion, and will describe the same with reference thereto. We refer to the claims for the essen tials of the invention and novel features 'of con struction and novel combination of parts for 30 which protection is desired. In said drawings: trolling the bed reciprocating means. Fig. 2 is a longitudinal section through the ` Fig. 3 is a transverse section through the cen ter of the machine. Fig. 4 is an enlarged detail section. Figs. 5 and 6 are sections through the valve showing same in different positions. Fig. 7 is a detail section. Fig. 8 is a section on the line 8_8, Fig. 9. Fig. 9 is a section on the line 9_9, Fig. 8. 'I'he body of the machine is composed of oppo site side frames I and 2, which are in general similar. These side frames at about their ver tical central portions are extended as at I a and 2a in a direction parallel with the axis of the machine,- on which the bed 4 (hereinafter re ferred to) travels, the length of the extended portions la, greater than length of its rowed as at roll 6, hereinafter referred to, and are connected together by a top tie casting 3. The side frames are also yconnected by a bottom tie plate 3a. The bed 4 is mounted to reciprocate horizon tally between the side frames, and is supported at the pressure point upon the centrally disposed lower roll 5, disposed beneath the upper roll `6. The bed 4, while being supported at the pres- _ sure point by the roll 5, is also supported by track bars 'l and 'la fastened to ledges Id, 2d `on the frames I and 2 (see Fig. l3) and extending be neath the >sides of the bed except in way of the roll 5. As an additional guard against tipping the extensions la and 2a of the side frames are provided with ñanges I e and 2e (Fig. 4), which flanges project inwardly a short distance over the top of the bed 4 at each side when the bed is in either extreme of its movement. The un dersides of the bed 4 are provided with bearing strips 4a: (Fig. 4) removably secured thereto by screws 4g, the strips 4x contacting with the track bars 1, la. The side frame I (see Fig. 3) is provided with a housing I c for the bearing 5a of the adjacent .journal of roll 5; and other journal of roll 5 is 25 mounted in a bearing 5b mounted on the side frame 2. As shown frame 2 is provided opposite the end of roll 5 with an opening 2:6 which is closed by a closely fitted plate 2c', removably Fig. 1 is an elevation of one side of the machine partly broken away to expose the valve for con axis of the machine. (Cl. 101-12) 2a of the frames being slightly the length of the bed 4 plus the travel. The side frames are nar Ib, 2b, above the bed 4, and said portions of the frames extend above the upper secured to the frame by bolts 2s or other suit 30 able devices. This plate 2c carries the bearing 5b in which the adjacent journal of roll 5 is mounted. The bearing V5b may be secured in an opening 2y in plate 2c (see Fig. 3) which is closed by a cover plate 2e. By removing plate 35 2e access can be had to the bearing 5b; and when plate 2c is removed the roll 5 can be removed from or replaced in the frame. The outer sur faces of the plates 2c and 2e `are preferably i'lush with the outer side of frame 2. 40 The top or presser roll 6 is journaled in bear ings (ia (Fig. 3) which are supported in hangers 8 which are vertically adjustable in guide ways I f, 2f (Figs. 1 and 2), on the side frames. Each hanger 8 is provided with a threaded opening in 45 its upper end engaged by an adjusting screw 8a, which has a. flanged upper end 8b by which it is suspended on rotatable bearings 8c mounted in recesses in the under side of the top portion of 50 tie bar 3 (see Fig. 3) and secured therein by re‘ tainer plates 8e. The screws 8a are reduced in diameter as at 8f to receive the Lanti-friction bearing 8c which transmit the upward thrust from the roll B (when rolling a mat) through the 55 2,133,750 2 races of the bearings 6a to the seat for the upper races of the bearings 8c in the top tie 3. The screws 8a are provided with worm gears 8d which mesh with forms- 9d on a transverse shaft 9 journaled at its ends in bearings 9c in the ends of the tie 3 (see Fig. 2). To raise or lower the roll 6 shaft 9 is rotated, and through worms 9d and gears 8d the screws 8a are ro tated. As shown the shaft 9 carries a worm gear 9a which meshes with a worm Illa on a shaft ||l the fluid, whether forced into or out of the cham bers 41~ or 41, passes through the control valve |'| by means of its inlet and exhaust ports, the action of the control valve being very similar to the action of a slide valve in a steam engine. A pump 2| operated by a motor 22 is provided for forcing the ñuid into either chamber 41', 41 through valve I‘I, and when it is forced through one chamber it is discharged from the other, preferably into a supply tank 20, the fluid being which extends below the shaft 9 and at right an gles thereto. The shaft I0 extends outside of the frame and may be provided with handles Iûc (see Figs. 1 and 2). By manually revolving 15 knobs IIlc motion is transmitted through the shaft 9 to rotate the screws 8a; and thus the top roll E can be raised or lowered to obtain the desired adjustment between said roll 6 and bed 4. Cylinder 5 has gears 5d on each end which 20 mesh with racks 4d on the underside of the bed adjacent the track bars 1, la, so that the bed will travel at uniform speed with the periphery of roll 5. On the shaft of roll 5, adjacent the side frame 2, is a gear 5e which meshes with a 25 gear 6e on the adjacent end of the shaft of roll 6 so as to synchronize the speed of movement of bed 4 with the peripheral speed of the rolls. The bed 4 is formed with one or more cylin dric bores 4a which constitute hydraulic cylin 30 ders by means of which the bed is reciprocated subsequently withdrawn from tank 20 and forced into the other chamber by pump 2|. A relief valve 22x may be provided (see Fig. 1) to re lieve pressure in pipe Ilg when the valve I'I is thrown into neutral position, thus allowing the 15 pump and motor to continue running without danger to the mechanism, the iluid by-passing through pipe 22a to the tank 20. ,In the construction shown (Figs. 1, 3, 5 and 6) the header pipes I5 and |511'l are respectively con nected to ports I'Ia and I'lb of control valve I1, which also has ports I1c and I‘Id connected by pipe I'Ie to tank 20; and also an intermediate port I‘If connected by a pipe I'Ig to the outlet of pump 2|, the inlet of which pump is con 25 nected by a pipe 2|a to the tank 20. The valve I‘I is provided with a spool piston I'Ih which when in one extreme position (see Fig. 5) will close the port I'Ic and open the ports I'Ia and I'Ib, |`|d and Ilf. In this position, pump 2| will 30 draw fluid from tank 20 through pipe 2| a and pass same through pipe I‘Ig to the valve port I‘If, lightness the bed 4 may be provided with longi the fluid passing through the piston I'Ih and tudinal holes 4h to reduce its weight without through header pipe |5a into the chamber 41, appreciably affecting its resistance to pressure. and consequently the bed 4 will be moved to the 35 35 In some cases only one cylinder 4a might be left (Fig. 2); at the same time fluid will escape used in the bed 4, but we prefer to use two so from the chamber 4r passing through header as to keep the pressure on the bed more uni I5 and through the connected ports I'Ib and I‘Id form than would be the case if only one cylinder and through pipe I`|e to tank 20. Similarly if were used. Each of the two cylinders 4a are the valve piston I‘Ih is moved into the other 40 similarly connected to the inlet and the dis extreme position (Fig. 6) the port I'Id is closed, charge pipes, but one control valve and one con and the ports I'|f--|'|b-, also ports I'Ia-I'Ic are trol rod, hereinafter described, are used to oper- respectively in communication through and ate both cylinders. around the end of the valve and fluid under In each cylinder 4a in the bed 4 is a piston pressure admitted to pipe I4 and to chamber I4b which divides the cylinder into right and 4r, whereby the bed 5 is moved to the right (Fig. left chambers 4r and 41 (Fig. 2). To the piston 2) ; while the fluid from chamber 41 is discharged |4b are connected the inner ends of axially alined through ports I'Ia, |1c and pipe I‘Ie to the tank. tubes I4 and I4a, the outer ends of which are When Valve piston I‘Ih is in neutral position, as fastened to end bars II which connect the outer shown in Fig. 1, the ends of the valve close ports 50 ends Ia, 2a of the side frames I and 2. The I‘Ia and |1b and no fluid can enter either cham tubes I4, I4a are preferably attached to end bars || by means of universal couplings IIa or by ber 41' or 41, while both chambers communicate other suitable means. The ends of the cylinders through ports I'Ia-I'Ic and I'Ib-I‘Id respec tively with pipe I'Ie leading to the tank 20, and 4a are closed by heads 4b which may be pro the bed 4 will remain motionless until the valve 55 vided with stufling boxes 4c making a close slid piston I‘Ih is again thrown into position shown in ing ñt with the tubes I4 and I4a. Oil or other suitable huid may be alternately pumped into Fig. 5 or 6. Thus when fluid is admitted to as hereinafter described, and for purpose of the cylinder chambers 4r, 41, at opposite sides of piston |4a. For convenience the oil may be admitted into the chamber 41 through tube I4a, which has an opening I4c adjacent the piston |412; and simultaneously ñuid can be exhausted from the chamber 4r through the tube I4 which has an opening | 4d adjacent the piston |4b. The outer ends of the tubes I4a may be con nected to a common header pipe |5a; and tubes I4 may be similarly connected to a header pipe I5. The pipes I5 and |5a are connected with a iluid supply and exhaust valve I1 whereby when 70 fluid is admitted to one chamber of the cylin ders the other chamber can be simultaneously discharged of fluid. The control valve I1 can be placed at any convenient location between the side frames. Preferably Same is located inside of the frame I as shown in. Figs-l 1 and 3» A11 either set of chambers 4r or 41 the bed 4 is moved under fluid pressure, same being moved to the left if fluid is admitted at the left side of 60 the piston |4b; and to the right if fluid is ad- mitted at the right side of the piston I 4b. The valve piston I'Ih has a stem I'Ii connected to one end of a lever 23 which is pivoted at 23a on the adjacent side frame I, and the other end of this lever is engaged with a pin 24a on an axially movable control rod 24 which extends horizontally beside the adjacent side frame (Figs. 1 and 3). As shown the ends of the rod 24 are loosely engaged with rocker arms 24h (Fig. '7) 70 attached to manually operable levers 25 pivoted in the outer ends Ia of the side frame by which the rod 24 can be readily manually shifted axi ally by the operator. By shifting rod 24 the lever 23 is caused to shift the valve piston I'Ih to the 75 2,133,750 desired operating position, and by the above ar rangement When rod 24 is shifted in one direc tion, i. e. to the right, the bed 4 is caused to move to the left, and when the rod is shifted to the left, the bed is caused to move to the right; this ar rangement permitting the use of automatic stops for shifting the valve to neutral position by the bed 4 when the latter has reached the end of its outward travel in either direction. 10 The automatic stops comprise collars 26 adjust ably mounted on the rod 24 adjacent the ends of the bed when same has reached its outward limits of movement. Collars 26 are adapted to be respectively engaged by lugs 4m attached to 15 the ends of bed 4, said collars being so adjusted that at any desired point of travel of the bed the lug 4m at the leading end of the bed will engage its related collar 26 and cause the shifting of rod 26 to bring valve Hh. to neutral position and 20 hence cause the closing of the valve, thereby stopping the bed. The adjustable collars 26 pro vide for the stopping of the bed 4 at various points of travel. For full length travel of the bed stops are not required since the bed will auto 25 matically stop at the end of its full travel when the hydraulic chambers 4r, 41 have reached the limits of their strokes. Thus while the bed is stopped automatically when it reaches the ends of its strokes in either direction, the bed must be started by shifting the manually controlled levers 25 at the ends of the machine. In operation, the bed 4 is moved to one end of the frame by shifting hand lever 25, and a type form from which a matrix is to be made is placed 35 upon the bed. A piece of prepared paper pulp called in the trade “fiong” is then placed upon the type form, then a blanket is placed on top of the flong, and the bed is started by shifting the manually operated handle 25 in the opposite 40 direction, and the bed is moved between the rolls 5_6 to the other end of the machine where it is stopped automatically as hereinbefore described. The blanket is then removed and the pressed flong (which after this operation is a matrix, 45 having the printing surfaces pressed into it) is removed, and after it is dried, same is used in the stereotype plate casting box. The bed is returned to first position at the convenience of the operator. Referring to Figs. 8 and 9, a modiñcation is 50 shown in which the ñuid cylinder drive in the bed is omitted, and a quadrant drive substituted in place thereof. In this modification the quad rant 30 has a bearing 30a keyed on a shaft 3l 55 journaled in bracket la: in frame I , said quad rant having gear teeth meshing directly with one of the gears 5d on the shaft of roller 5. A double acting hydraulic cylinder 32 is pivoted as at 32a on the frame l and has a piston rod 33 60 connected with a rocker arm 3Ia keyed to the quadrant shaft 3|, so that the quadrant will be actuated by the piston rod 33. If desired the rod 33 might be connected directly to the quad rant 30 itself. Any movement of the cylinder piston 33 is transmitted to the quadrant and, in turn, to the bed 4 through the gears 5d of roller 5 which mesh with the racks 4d on the underside of the bed, giving the bed the desired recipro cating motion. The fluid cylinder 32 is con trolled by the same valve means Il and fluid circuit described with respect to Figs. 1-'7 inclu s1ve. The novel features of our machine are the means for driving the bed 4 by hydraulic pres sure within the cylinders 4a in the bed 4, or 3 the cylinder 32 coacting with the quadrant gear 3U; the construction of the framing so as to confine all moving parts inside the same; the construction of the framing to allow insertion and removal of important parts without disman tling the machine or framing; and the construc tion of the mechanism for adjusting the top roll. We claim: 1. In a mat roller, a reciprocable bed having a fluid cylinder, a stationary piston in the cyl 10 inder, and means for admitting fluid under pres sure into the cylinder at one side of the piston and simultaneously withdrawing fluid from the cylinder at the opposite side of the piston. 2. In a mat roller, a reciprocable bed having a 15 cylinder, a stationary piston in the cylinder, means for admitting iluid under pressure into the cylinder at one side of the piston and simul taneously withdrawing fluid from the cylinder at the opposite side of the piston, and a valve con 20 trolling the admission and exit of ñuid to and from the cylinder. 3. In a mat roller, a reciprocable bed having a bore forming a fluid cylinder, a stationary piston in the cylinder, means for admitting fluid under 25 pressure into the cylinder at one side of the pis ton and simultaneously withdrawing ñuid from the cylinder at the opposite side of the piston, a valve controlling the admission and eXit of fluid to and from the cylinder, and manually operable means whereby the valve may be shifted to cause the bed to be moved in the desired direction. 4. In a mat roller, a reciprocable bed having a cylinder, a piston in the cylinder, and valve means for supplying ñuid to the cylinder. 5. In a mat roller, a frame, a reciprocable bed mounted in the frame; a roll supporting the' bed; and means whereby the roll may be removed end wise from position Without dismantling the bed or frame. 6. bed, side side 40 In a mat roller, side frames, a reciprocating a roll supporting the bed, a bearing in one frame for one end of the cylinder, the other of the frame having an opening to permit entry or removal of the roll therethrough, and a removable plate closing said opening and having a bearing for the other end of the roll. 7. In a mat roller as set forth in claim 6, means in said plate for permitting access to the latter bearing. 50 8. In a mat roller; side frames, a reciprocable bed mounted between the side frames; a roll be low the bed; a roll above the bed and adapted to cooperate with the bed in pressing mats; hy draulic means for reciprocating the bed; and 55 gearing for rotating the rolls synchronously with the bed. 9. In a mat roller as set forth in claim 8; means for permitting removal of the lower roll without dismantling the side frames and bed. 60 10. In combination with a mat roller as set forth in claim 8, a bearing in one side frame for one end of the lower roll; the other side frame having an opening of size to permit insertion or removal of the roll therethrough; and a remov able plate closing said opening having a bearing for the adjacent end of the roll. >11. In a mat roller; side frames, a reciprocable bed mounted between the side frames; a roll be low the bed; a roll above the bed disposed opposite 70 the ñrst roll and adapted to cooperate with the bed in pressing mats; means for reciprocating the bed, and gearing for rotating the rolls. l2. In a mat roller as set forth in claim 11, a bearing in one side frame for one end of the roll; 75 2,133,750 4 the other side frame having an opening of size to permit removal of the roll therethrough; a removable plate closing said opening having a bearing for the adjacent end of the roll; and means to prevent tipping of the bed. 13. In a mat roller as set forth in claim 11, a rack Von the bed meshing with a gear on the ñrst roll; intermeshing gears on the ñrst and second rolls; and ñuid actuated means for reciprocating the bed. 14. In a mat roller, a bed having a cylinder, rolls above and below the bed, racks on the bed meshing with gears on the lower roll; intermesh ing gears on the rolls; a stationary piston in the cylinder; means for admitting fluid under pres 15 sure into the cylinder at one side of the piston and simultaneously withdrawing fluid from the cylinder at the opposite side of the piston; a valve controlling the admission and exit of ñuid to and from the cylinder; and manually operable means for shifting the valve. ' v 15. In a mat roller, a bed having a cylinder, rolls above and belowv the bed, racks on the bed meshing with gears on the lower roll; intermesh ing gears on the rolls, a stationary piston in the cylinder; means for admitting fluid under pres sure into the cylinder at one side of theïpiston and simultaneously withdrawing fluid from the cyl inder at the opposite side of the piston; a valve 30 controlling the admission and exit of ñuid to and írom the cylinder; manually operable means for shifting the valve; and means for automatically returning the valve to normal position at the end of each stroke of the bed. 16. In a mat roller having a bed and cooper ating rolls, racks on the bed meshing with gears on the lower roll; intermeshing gears on the rolls; a double acting iiuid cylinder having a piston; a member operated by the piston and meshing with a gear on the first roll, and valve controlled means for admitting fluid to the cylinder. 17. In a mat roller; side frames; a reciprocable bed; a roll supporting the bed; means for pre venting tipping of the bed; a second roll above the bed; a rack on the bed meshing with a gear on the first roll; intermeshing gears on the rolls; a dou ble acting fluid cylinder having a piston; means for operating the bed actuated by the piston; and valve means for admitting iiuid into the cylinder. 18. In combination with a mat roller as set forth in claim 17, manually operable means for shifting the valve; and means for automatically 15 returning the valve to neutral position at the end of each stroke of the bed. 19. In a mat roller, a frame; a reciprocable bed _mounted in the frame; a roll in the frame dis posed above the bed adapted to cooperate with 20 the bed in pressing mats; means for adjusting the roll to and from the bed; and means for recip rocating the bed and for synchronously rotating the roll; said adjusting means and reciprocating 25 means being enclosed within the frame. 20. In a mat roller, a frame; a reciprocable bed mounted in the frame; a bed supporting roll below the bed; a second roll above the bed adapted to cooperate with the bed in pressing mats; means for adjusting the second roll to and from 30 the bed; and means for reciprocating the bed and for synchronously rotating the lower and upper rolls; said adjusting means and reciprocating means being enclosed within the frame. 35 THOMAS H. MARS. - HERBERT C. BEHRENS.