SU52347A1 - Printing press - Google Patents

Description

The printing presses are known in which the thaler is stationary, and the aggregate drum, together with the inking machine, rolls across the talera.

The printing press according to the invention differs from the known ones in that the device for communicating to the trolley the forward movement consists of two pairs of telescopic tubes, of which the internal pair is stationary and connected to the oil reservoir by the pump, and the external pair is connected to the trolley.

In FIG. 1 is a front view of the printing press; FIG. 2 - view from the back; FIG. 3 is a cross-section along the line AA of FIG. one; FIG. 4 is a longitudinal section of the machine between the front and intermediate frames; FIG. 5 is a plan view of the machine with the hitch removed; FIG. b - partial longitudinal section; FIG. 7 shows a partial cross-section of a carriage with part of a cylinder and wedges for raising and lowering the carriage on its guide frames; FIG. 8 is a view of the end of a rotating printing cylinder; FIG. 9- coupling mechanism for connecting the gear with the printed shaft

cylinder; FIG. 10 is a longitudinal section of one of the pairs of telescopic tubes; FIG. P - longitudinal section of the spool controlling the supply of oil to the telescopic tubes and its release from them; FIG. 12 is a partial sectional view of one of the colorful rollers with foxes on the spindle of the roller to communicate the roller in a straight-forward motion; FIG. 13 is a partial plan view showing the location of the telescopic tubes.

As shown in the drawing, the proposed machine consists of a front frame /, a rear frame 2 and an intermediate frame 3 connected by links 4. On the guides 6, on the upper side of the frame, a trolley 7 can be moved, carrying a rotating printing cylinder 8 and an inking device 9, with the sides of the carriage 7 folded and inserted under the guides 6 of the front and rear frames / and 2 (see 7a in Fig. 3) to hold the carriage 7 on the guides. A wedge 5 (Figs. 1, 2, 6, 7) is inserted between the curved portions 7c of the carriage 7 and the guides 6 for raising and lowering the carriage 7 on the guides. The wedge 5 is held by bolts 5a, on which their heads are at rest and which are located at the ends of the carriage, as well as locking nuts on the bolts. Thaler W (Figs. 3, 4, 5) is supported between the front / and intermediate 3 frames and consists of the upper part // and the lower part / 2 (Figs. 1, 3 and 4) equipped with interlocking inclined stepped ribs On and / 2c, with the lower part of the rod 12 fixedly mounted between the frames 7 and 3, while the upper part // can move along the flock along the lower part 12, t, due to the inclined, adjacent to each other, surfaces on the stepped edges // and J2a, raises or lowers the thaler 10 relative to the rotating printing cylinder 8, depending on the direction of transfer The space of this top //. The device for communicating the upper part of the thaler, for raising and lowering the latter, consists of the flywheel J3 (Figs. 1, 3, 5) on the front side of the machine, the shaft 14 with the screw 15, which goes inside the said handwheel 13, the worm gear. wheels / b, which engages a screw 75, and from screw 17 (Fig. 3 and 4), on which a worm gear 16 is stuck, and screw 17 engages with a nut 18 fixedly fixed between the projections 19 on the lower side of the upper part // thaler.

By turning the handwheel 13 in the proper direction, it is possible to raise or lower the upper part / taler (within certain limits) to bring the taler 10, on which the printing plate or the like is placed, to the desired position relative to the rotating printing cylinder. Bearing printing cylinder 8, shaft 20 is supported in bearings 21 on trolley 7, with cylinder 8 having supporting wheels 22 at its ends, rolling along guide rails 23 at the upper edges of the front and intermediate frames 1 tl 3 (Figures 3, 5, 6 , 7). Each of the supporting wheels 22 has on its circumference a flat surface 22a (Fig. 8). Gear rail 24 (Fig. 3, 5, 9, 13), supported by intermediate frame 5,

engages through an opening 24 in the bottom of the carriage 7 with a gear wheel 25, freely mounted on the shaft 20 of the printing cylinder 8, with a clutch 26 (Fig. 3, 9) for locking the gear wheel 25 with the shaft 20, to communicate rotational movement to the cylinder 8 and for his printing job. The cart 7 is moved back and forth over the puller 10 by means of a device that will be described below and when it is located at the end of the paper feed, indicated in FIG. 1 by the numeral 27, the printing cylinder 8 is in such a position that the flat surfaces 22a of its support wheels 22 are on the guide 23 of the cylinder.

When the paper is fed to the cylinder 5 and captured on it by any suitable means 56, the carriage 7 moves over the taler 10 towards the outlet end 28 of the machine (Fig. 1); during this movement, the gear wheel 25 on the shaft 20 of the cylinder 8 is locked with the shaft 20 of the clutch 26, as a result of which the cylinder 8 is rotated, and its support wheels 22 move along the guides 23 so that the paper winds around the circumference of the cylinder 8 and presses against the talera 10 or rolls over it for printing using a printing plate or the like. When the carriage 7 reaches the exit end 28 of the machine, the support wheels 22 of the printing cylinder 8 are again on the guide .2J flat surfaces 22a, and the sleeve 26 turns off , Releasing the cylinder shaft 20 from the seated thereon a gear wheel 25, after which the cylinder 8 stops rotating.

At the same time, the paper is picked up by some suitable device at the discharge end 28 of the machine, and the movement direction is. The carriage 7 is changed, and the printed sheet is removed from the cylinder 8 and placed on the discharge end 28, while the cylinder 8 returns to the cutting end 27 of the machine body 7, and he

does not rotate because its support wheels 22 slide along the guides 23 with flat surfaces 22a. The wheel 25 now sits loosely on the shaft 20, and the cylinder can take a new sheet of paper and restart printing operation after the gear wheel 25 is locked to the shaft 20 and after the trolley 7 is moved in the proper direction to turn on and off the clutch 26 which locks the gear wheel 25 with shaft 20 and separating them; The clutch lever 58 is provided with a protrusion 60 extending from it downward through the slot 55 in the bottom of the carriage 7 and calculated for coupling with the inclined surfaces 6, 62 on the rear frame 2 at the end of the travel of the carriage 7 in one direction or the other. At the end of the movement of the carriage 7 to the outlet end 28 of the machine, the protrusion 60 abuts against the inclined surface 61 and turns off the clutch, at the end of the stroke of the carriage 7 toward the suction end 27 of the machine, the protrusion 60 abuts against the inclined surface 62 and turns on the clutch 26.

A device 9 for supplying ink to a printing form or the like on a taller W consists of large ink rollers 29 adjoining intermediate rollers 30 and lower rollers 32, which are mounted between the brackets 34 on the trolley 7, the larger rollers 29 are connected to each other. other gear and driven by a gear wheel ZOA, coupled with the toothed rack 24. The axes of the large ink rollers 29 can move 1. in the longitudinal direction in their bearings, and they are placed disks 33 (Fig. 12) rotating in the notches of the rotary pads 34, Oude neighing the axles of the rollers and forcing the rollers 29 to move back and forth across the carriage 7 or along the length while rotating, so that the paint supplied to the rollers 29 is evenly distributed over them and through the intermediate rollers 30 and transferred to the lower rollers 32 that distribute it over the surface of the printing form or the like on the U

while moving the cart back and forth over the latter. The paint is applied to the colorful rollers 29 due to the contact of the upper roller 29 with the swinging roller ZZa (Fig. 1) at the discharge end 28 of the machine, and the swinging roller ZZa receives paint through the other rollers 34a from the tank 55.

The device for communicating the forward-returning movement perpendicular to the tallera 10 trolley 7 with a rotating printing cylinder 5 and the inking device 9 consists of pairs of telescopic tubes 36, 37 (Fig. 1-5,10,13). The inner tubes 37 are fixedly mounted between the frames 2 and 5, and the outer tubes 36 attached to the trolley 7 slide along the inner tubes 57, and the pairs of telescopic tubes 56, 57 are opposite to each other (FIG. 13) or so that when one pair of tubes 56, 57 moves apart, then the other pair 36, 37 moves. The oil is taken from reservoir 38 and is pumped under pressure by pump 59 through the control spool into the inner tube 57 of only one of the pairs of telescopic tubes 56, 57 at the same time, so that this pair is moved apart, transferring the trolley 7 perpendicular to the taler 10 in one direction The oil, however, contained in another pair of pipes 56, 57, is being forced out of them as they shift.

FIG. 11 shows a control spool of a type suitable for controlling the supply of oil to the telescopic tubes 56, 57 and for removing it from them. This spool consists of a cylindrical body 40, into which oil is supplied through pipe 41 from the discharge side of pump 39 and from which it is discharged through pipe 42 to reservoir .55; Drubki 43 between the housing 40 and the internal pipes 57 of the telescopic pipes 36, 37 slunsat for supplying oil under pressure to one of the other pipes 57.

The sleeves 44, fitted with radial slots 44a, are inserted into the housing 40 across the holes of the latter leading to the tubes 41, 43, and in the sleeves 44 a hollow cylindrical slide valve 45, fitted with a Ja groove on its circumference, slides. The piercing rod 45 is screwed into the slotted extension 47 at one end of the spool and exits the housing 40 through the gland 48, and at the end of this rod 46 there is a slot through which the lever 50 passes, the lower end of which is rotatable mounted on the rear frame 2. The rod 57 slides into guides 52 on the frame, has upward bent ends 55, so designed that cart 7 is pressed against them at the end of its stroke in both directions. The rod 5 / also has an arm 55 extending inward from it through the slot 54 in frame 2, the upper end of the lever 50 enters the forked inner end. When the spool 45 is in the position shown in FIG. 11, the oil coming through the tube 41 from the pump 39 cannot pass into any of the tubes 42, 43, but when the cart 7, abutting against the curved upward end 53 of the rod 5 / and setting it in motion, will move the spool 45 to connect one of the tubes 43 with the tube 41, the oil passes through the tube 43 thus connected to one of the pairs of telescopic tubes 36, 37, so that. the pipes of the pair to which the oil was supplied are moved apart and move the cart in the corresponding direction across the taler 10. At the same time, the oil in the other pair of pipes 56, 57 shifting returns to the housing 40 and passes either through the hollow slide valve 45 or directly into tube 42 for discharging into tank 5 for reuse. At the end of its stroke, in that and in the other direction, the carriage 7 rests on one of the upturned ends 55 of the rod 51 and, moving the latter, causes the spool 45 to move in the housing 40, change the direction of the oil flow in the pairs of pipes 36, 37 and thereby change the direction of travel of the carriage 7. The outer pipes 36 pairs of telescopic pipes 36, 37 are equipped with spring-loaded exhaust valves 54, which allow oil to exit under excessive pressure.

The subject invention.

Claims (4)

1. A printing machine with a fixed thaler and a printing drum rolling along with the inking device, characterized in the use of two pairs of telescopic tubes 36, 37, of which the inner tubes 57 are fixedly mounted to the trolley 7 with the printing drum and the inking machine. and connected to the oil reservoir 38 by the pump 39, and the outer extendable tubes 56 are connected to the carriage 7. 2. In the machine tool according to claim 1, use a toothed rack 24 fastened in the frame 5 of the thaler / O and serves to rotate the toothed wheel 25 mounted loosely on the shaft 20 of the printing drum 8 and activated by the clutch 26. 3. In the machine tool according to claim 1, for controlling the flow of oil into the pipes 56, 57, enclosed in the housing 40 of the spool 45, the stem 46 of which is articulated by the lever 50 with the rod 57 with the bent ends 55 interacting with the trolley V. 4. In the machine tool according to claim 1, a device for precise installation of a JO jig in height, consisting of a shaft J4 with a handwheel 75 and a screw f5 coupled to a screw wheel 76 on a screw 77 coupled to a nut J8 on the bottom part 77 Thaler Y. E patent in Harry Harry Rogers 57, .. 55 / g - figure 1 № 5234U - l --- h 2. 24 L lJ ::::. S ... A, .... ,... : R." 51  iAl &: dttf m ..: l-f - - -.-. g-hf and D.5 5 rn 1 x 5G 6 ".72,1. AND .four 2i . L four. L , M J 1 ryrjly U AL (n  JLL-Jl .IfeBfl-W- yyyy Y G- ". .62 / i2 -i