DE1761097A1 - Machine for printing the outer wall of objects such as cups or the like. - Google Patents

Description

DlpL-Phys. E. Betzler "in". η

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DipL-lng. W. Herrmann-Trentepohl τ7Ι7ΓοΓ »μ PATENT LAWYERS April 2, 1968 MMIMda SI, Elt * n «ch« rStrass ·

tofc: 91011, 39M12, 598013 : «34542

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TlH IUM MACHIHE CORPORATION, 1122 East 180 th Street, Bronx, Hew Toric 10 460, USA

"Machine for printing the outer wall of objects such as cups or the like"

The invention relates to a machine for printing the outer wall of objects such as cups or the like, with a rotating pressure roller mounted in a frame and with one the objects receiving on radial arms and intermittently advancing them through the printing position rotary head as well with a test device to determine whether the rotating head arm running through the printing position has a • Item carries or does not.

In particular, the invention is directed to an improvement in a machine of this type, as described in US Pat * he U&A patent document 3,199,451 is described 1st. In

Nauo documents

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this machine is a rotary head, whose ■ loh radially extending, the objects receiving arne for the pail that from any Reason no object is sitting on the arm to get away from even surUckzlehen. The invention aims at the Creation of a simpler and more adaptable door direction according to the basic concept according to which the . Entire rotating head withdrawn in axial direction if there is no container on an arm that is to move into the decoration or printing position.

This object is achieved with the invention in accordance with through axial Yerschlebbarkeit of the rotary head on its axis of rotation, a Torrichtung overall for Torschieben of the rotary head on its axis of rotation in the direction of the pressure roller and of the sensing device) controlled gate directions of the rotary head to remove his arms in the direction of the axis of rotation if an object is missing in the print position.

The invention is to be explained in more detail in the following "m *" ™ * of the drawings.

The drawings are in

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Tig. 1 is a perspective side view of a machine eohine, are placed in the continuously cups to the arms of a rotary head and is guided in a print pitch;

Hg. 2 an enlarged, partially in section as the given representation of the rotary head, where in the section along the line 2-2 of the Pig. 1 is performed;

Pig. Figure 3 is an end view of the turret alone taken substantially along line 3-3 of the Pig. 5 seen;

Pig. 4 is a partial section along line 4-4 of FIG. 3;

Pig. Figure 5 is a section along line 5-5 of the Pig. 3 but reproduction of the rotary head in the printing division;

Pig 6 is a schematic representation of a circuit usable for the * erfindunge modern machine switching.

Dim Besugeceichen P generally designates the frame

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the printing machine, with a bed surface 10 for receiving Ton Spaced supports 11, between which the pressure roller 12 is mounted on a shaft 26 is rotatably mounted. A trestle surface 13 takes one Adjustment drive 14, from which a drive shaft 15 extends, on which a rotary head 16 is attached let. The drive 14 can be a conventional Maltese cross or a cam drive as shown in US Pat. No. 3,228,086. This drive is expediently connected to an electric motor and, as can be seen from FIG. 1, so arranged that he continues to rotate the rotary head 16 counterclockwise lh steps, so that the arms 17 come to stand in succession opposite the belt of the drum 12 in the printing position 12. The reproduced Turret rotates 45 degrees at a time and has a short rest period between each Rotary motion.

The arms 17 receive the plastic cups 0 to be printed from an above feed 18a. Each arm 17 contains a frustoconical outer sleeve 18 (Pig. 2) which is rotatably mounted with the aid of a ball bearing arrangement 19 on a tubular support 20 which is mounted on a tubular rod 21 ait Bt, which has an enlarged threaded portion 22.

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has, which let screwed into a mounting block 23. Tray pig. 2, the cup C is picked up on an arm 17 in the 12-UtLr position as soon as the rotating head TorU temporarily comes to a standstill. From the 12 o'clock position, each arm 17 becomes jig counterclockwise. 2 rotated and captures an image 24 'which is mounted on the printing drum 12. Each cup C will then be how large. Recognizable, issued 2, when the load-bearing him like de arm 17 briefly comes in the 3 o'clock position to rest.

Since the cups C have inclined side walls, the printing drum support members 11 are parallel on top of FIG Bed surface 10 mounted in an inclined position so that there is a continuous or total contact of the conical Becherseltenwandung with the print pattern 24 on the drum 12 results. The drum 12, which animal in the Has circumference spaced printing felts, ^

is at a low speed determined by the goal in the order of magnitude τοη approx. 50 revolutions per minute Ton a gear 25 is driven, which lat mounted on the shaft 26. The gear can τοη a suitable, not shown electric motor • Put in normal gearboxes in circulation.

Si «Offeetdruokrorrichtung, which in the invention

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according to machine can be used »can correspond to that of US Pat. No. 3,195,451, so that it is not described in detail needs to be. Only those from Pig. 1 visible file will be explained in more detail. On a between the two supports 11 rotatably mounted ¥ «11« 27 sits a roller 28 with a gear 29, which meshes with the gear 25. The roller also contains a plate 28a for the transfer of τοη images on the printing felt 24. In addition, a common gate direction for feeding τοη printing ink onto the plate cylinder 28 is seen. The circumferential distance between the printing felts 24 is selected and the Speeds of the printing drum 12 and the setting rotary head 16 are coordinated so that that a radially protruding pressure felt 24 does not touch a cup C until the cup C is at the 9 o'clock position (TIg. 2) and pauses for a tent space during which the front end of the pressure file dl · side wall of the container C In the 9 o'clock position detected and the arm sleeve 18 to rotate begins to transfer the image rom printing felt 24 to the cup wall at 30.

The cup supply, generally designated 18 let, HMfaft sine feed device for movement

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in each case β ine β cup on each arm 17 in the manner shown in flg . The stack of the cups to be decorated or printed is fed between a plurality of guide rods 31 which are arranged at a circumferential distance and extend in the vertical direction. The guide rods 31 are surrounded by a plurality of circumferentially arranged screw feed cylinders 32 with helical grooves 33 for engaging the rims r of the cups and moving them downward from the guide rods 31. The advance cylinders 32 can be driven jointly by a common drive belt 34 which is wrapped around a drive pulley 35 which is mounted on the compression cylinder drive shaft 36. The belt 34 can be driven by a suitable drive pulley, which in turn is itself driven by a drive device (not shown). Of course, the rotational movement of the feed screw members 32 is matched to the rotational speed of the drum and the setting steps of the rotary head 16, so that only a single cup is placed on each arm 17 at the right time.

As already mentioned, a facility is provided

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which ensures that the pressure felts 24 the arm sleeves Do not print 18 if no cups 10 are actually sitting on the arm 17. This device is particularly shown in Pig. 4 12nd 5 recognizable.

On the outer end of the shaft 15 sits at 37 a Tuhrungshülse 38, which rotates with the shaft 15, however Stuck in the axial direction. The rotary head 16, which has a plate 16a, is pierced at 39 and on of the sleeve 38 for axial displacement mounted on guide rods 40, which between a cable part 38a of the sleeve 38 and a stop plate 41 which is fastened on the sleeve 38 are anchored. Around a smooth axial sliding movement of the rotary head plate 16a To ensure that, roller bearings 42 surrounding the rods 40 are provided on the turret plate 16a. The coil springs 43 on the guide rods 40 normally push the turret plate 16a in Direction away from the printing drum 12 and a single-acting pressure cylinder 44 moves the Rotary head plate 16a in the direction of the drum 12 when the test device to be described later indicates that a cup C on an arm 17 is on the pressure point F is seated. When pressure medium to the right end of the cylinder 44 after Pig. 5 abandoned is, then the force of the springs 43 is overcome

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and cup C on arm 17 at pressure point F. Maintained on drum 12 in pressure engagement with a pressure felt 24. The cylinder 44 can be a conventional simple acting, solenoid-operated, spring-return air cylinder with the usual valve-operated cylinder advance solenoid 44a (Fig. 6) be mounted on a plate 45 supported by rods 46 which extends freely through openings 47 in of the plate 41 and are screwed into openings at 48 which are provided in the rotary head plate 16a. The piston rod 49 of the cylinder 44 has has a thread at the extreme end and sits in one Threaded hole 50 in shaft 15. A return spring 44b is provided in cylinder 44 and rests against it the plate 49a on the rod 49 and pushes the cylinder 44 back as soon as the air from the cylinder 44 can occur.

The cylinder 44 is thus calibrated relative to the rotary head 16 can rotate, let the line 51 for the supply of air eur actuation of the cylinder 44, which is retrieved by spring force, received in a rotary coupling 52 which is concentric to the axis of rotation of the shaft 15 is arranged and establishes the connection to the air chamber 52a. The normally open contacts 53 (flg. 6) actuate a limit holder 54 (FIG. 4)

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the cylinder 44, the switch 54 being mounted on a bracket 55 8lt ₉ which is mounted on a support 56 with a transverse arm 56a (Fig. 2). On the arm 56a, as can also be seen in FIG. 2, a rod 57 is mounted on which an arcuate load plate 58 is seated pivotably on a pin 58a. The pivoting movement is possible in the direction of the drum and sound of the drum 12 away.

It is important to note that the arcuate plate 58 is long enough and so positioned that a cup O on one arm does not run off the plate until a cup C on another arm has touched its leading edge. Thus, with cups C on all of the arms, the platen remains in its down position as shown in FIG. 5 to keep the limit switch actuator roller 54a in the actuated position and the contacts 53 closed. However, if there is no cup on an arm 17 at the passage to the front edge of the tactile plate 58 and the previous cup C has moved over the plate 58, then the spring-loaded limit switch arm 54a can move freely outwards under the influence of the switch spring 54b, and the contacts thus open, de-energize the solenoid 44a and allow the springs 43 "to move the rotary head 16 outwards from a fraction of a few centimeters from the pressure

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drum 12 to move away.- Thus, no printing ink ▼ on the printing drum is on the surface of an arm head transferred, and there is therefore no printing ink on the inner surface of cups that are on be placed on an arm head that may have been decorated in this way. Record the above in operation Edges r the cup C the plate 58, and in the absence of a cup on a given arm 17, the outward movement of the rotary head 16 takes only a few breaks parts of a millimeter (40 thousandths of an inch), which is less than the width of a protruding lip or rim r. When two cups open a single arm 17 appear at the printing station F, then the printing felt is not affected because the Cylinder 44 yields. A regulating valve V can be provided so that air can exit when a predetermined overpressure in cylinder 44 is reached. At The cups C can be removed by hand from the delivery station corresponding to 3 o'clock. Preferably however, they are stripped from the arm 17 by an air jet which flows over the tubular arm support rods 41 and through suitable openings in the end of the Sleeve 18 is fed to the cup 0 to a suitable, but not shown discharge conveyor transfer.

- Patent claims: -

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Claims (1)

Pitentane claims Receiving 1y machine for printing on the outer wall of articles, such as cups or the like, comprising a shaft mounted in a frame rotating pressure roller and with a the objects on radial arms and intermittently through the printing position Torrtickenden rotary head as well as a sensing device to determine whether the by the Rotary head arm running in the printing position carries an object or not, characterized by the axial displaceability of the rotary head (16) on its axis of rotation (15) »a device (44) for advancing the rotary head (16) on its axis of rotation (15) in the direction of the pressure roller (12) and by means (54, 43 ) controlled by the sensing device (58) for removing the rotary head with its arms in the direction of the axis of rotation (15) in the absence of an object (C) in the printing position. 2. Machine according to claim 1, characterized geke η η - • • It is worthwhile that the rotary head (16) is wedged on its rotary shaft (15). 3. Machine according to claim 2, characterized g eke η η - - 13 - Documents (Art 7 8 1 Para. 2 No. 1 Clause 3 of the amendment-ges. V. 9/9/1967 » 1098 2 2 / Μ · '· <U records that the pressure roller (12) on a Axis rotatably mounted 1st and the shaft (15) itself JLm extends substantially perpendicular to the axis of the pressure roller (12). 4. Machine according to one or more of the preceding claims, characterized in that the pressure roller (12) carries pressure felts (24) at a distance on its circumference and is driven in timed coordination with the rotary head (16). 5. Machine according to one or more of the preceding claims, characterized in that the rotary head (16) advances gradually and each arm (17) has a rest period in the position he in which a printing felt (24) is opposite, the rotation of the printing roller (12) causing a rotation of a cup (C) by rolling the same on the printing roller and taking over the image located there. 6. Machine according to one or more of the preceding claims, characterized in that the test device egg, e arc-shaped plate (33) , the front edge of which with a first cup (0) on an Ana shortly before its arrival in the - 14 - 109 B? // () /, <H Has pressure position and is arranged to be in with a cup on a leading arm engages the time the first cup engages the plate. 7 · Machine according to one or more of the previous addresses, characterized by Switching means (54) controlled by the test device (58) and by means sur movement of the rotary head it (16) in the direction of the pressure roller in the form of a pressure medium-actuated Cylinder (44) which runs in the axial direction with the drive shaft (15) and through the switch (54) is actuated. 8. Machine according to claim 7, characterized in that the cylinder (44) with the Rotation axis (15) revolves and the pressure medium supply (51) sum cylinder (44) a rotary movement of the cylinder (44) relative to the supply line (51) • rauglicht. 9 · Machine according to one or more of the preceding addresses, characterized in that dmfl dl · Switching device (54) Near the Druokstatlon (P) arranged and attached to the cylinder - 15 - 109822/0494 (44) connected to the movement of the rotary head (16) let mid that the test device has a tactile plate (58) wiping the path of the arms (17) and the switch (54) , which in the direction of the switch (54) is in engagement with a Cup (C) is movable on an arm (17). 10. Machine according to claim 9 »marked thereby f shows that a pressure cylinder (44) actuated by the switch (54) " normally pushes the rotary head (16) in the direction of the pressure roller (12). 1 0 9 8? 2 / s.U 9 Jk. blank page