DE1436491A1 - Machine for printing cylindrical bodies - Google Patents

Description

U36491

4-577 July 8, 1968

DUBUIT MASCHINEN GMBH., Wiesbaden

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Machine for printing on cylindrical bodies

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The invention relates to a machine for printing cylindrical bodies, in particular aerosol cans and tubes large opening, which are lined up on a continuously driven conveyor chain provided with support rods.

It is already known that the printing of aerosol cans or metal pipes requires a first step in painting, in which the entire surface of the cans or tubes is provided with a generally white layer of varnish. This The operation is carried out in the corresponding painting machines and the cans are then placed on rod chains, on which the painting takes place. After this layer of lacquer has dried, the printing process generally takes place, that by offset or silk printing processes, in which the objects are removed by hand or mechanically and placed on a printing machine with thorns on which

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then with one or more colors according to one of the listed Process are printed. The aerosol cans are then placed on a new chain again by hand or mechanically j where the applied print is dried »

This has the disadvantage that, due to frequent changes The machining time would be very long and the mechanical ones

Facilities become complicated, making printing very expensive will.

The object of the present invention is to create a machine in which all operations of removing and re-applying after printing a, v £ other bars are eliminated by printing the cans on the drying bars.

This object is achieved according to the invention in that the chain, which is passed through two first sprockets, one of which is intermittently drivable Is ¹ ^ ₈ parallel under a pressure frame, via two further sprockets, which are between the first sprockets and one in front of each in the transport direction or behind these _s continuously arranged drivable pinions provided and guided in two Sehlaufen 1st and that arranged one to each body to be printed rod freely and rotatably retaining the gripper to the transport path of the body ± 3 o which "bcfiadliclie in a untor dsm stalks printing position displaceably is,

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bad original

It is useful if the loop mediators Pinions are attached to the two ends of a horizontal lever which is pivotably mounted about a pivot point.

It is also advantageous if the printing frame is continuous driving pinion and a pinion intermittently driving the pinion via one claw clutch each is controlled by a continuously drivable shaft.

The claws slide on a shaft, the rotational movement of which is coupled to the continuously driven shaft, and the other claws slide on a shaft that carries a Maltese cross, which is intermittently driven by a crank pin which is keyed on the continuously driven shaft.

The claws can be disengaged at the same time by means of a common manual control which acts on forks connected to the push rod.

It makes sense if the continuously drivable pinions can be driven via chains by a pinion which is on the continuously driven shaft is keyed.

Furthermore, the gripper should consist of an abutment, under which two conical support rollers are arranged, and one. Brackets consist of two support rollers each, two horizontal ones

Support surfaces, two conical support rollers and one tangential has attacking support role.

This gripper is arranged on a bracket that crosses the transport chain and is controlled by a pneumatic Cylinder can be moved into the printing position.

The cylinder can be controlled by a cam attached to a shaft that drives the printing machine.

It is particularly useful if the pinion is mounted on a lever which can be adjusted in height by means of a screw.

It has also been found beneficial when the claws a small number of teeth, preferably one tooth, and the other Elau @ n have a large Amsafa.1 of £ «alui © Ö., preferably six.

i the generally used drying oven, move

"Chains with rods on which the object © are placed" These hotten run continuously from m _o B © in the printing wisd © is necessary, d © a zn printed object, s _o B, dio evil s, ^ jshsemL © is.es getjissea To keep the period of time equal, "Bi © s © a gate part shows the present invention by performing this"! ¹ operation by "b © 2? © its b@kaim.tQ Hittel , uobQl sb © r the Anhalt Ώ. the D

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BATH

for example, for exchanging the print frame, without changing the continuous running of the drying chain * u. Furthermore, the present invention offers the advantage that the bad is caught for printing, either by the offset or the silk printing process, so that the printing process is completely synchronized with the stopping of the chain. In general, the can is gripped between an end piece and a suitable cover so that the cans are fixed in a clear position with respect to the printing machine .

Embodiments are illustrated by way of example with the aid of the accompanying drawings of the present invention.

Fig. 1 is a side view of the machine. Pig. 2 is a plan view.
Fig. 3 is a profile view.

Fig. 4 is an enlarged view of the gripping device of the object seen in profile.

Fig. 5 is an enlarged view of the gripping device for the can seen in plan view.

A drying chain 1 carries State 2, on which aerosol cans 3 are applied, which are on a painting, not shown

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machine have already received a coat of paint.

This chain is continuously driven by pinions 4 and 5, the movement of which is controlled by a pinion 6 Chains 7 and 8 received «," The .drive shaft 9 on the Pinion 6 is attached, is the operating shaft of a transmission gear 10, which is of a not shown Motor is driven.

On the shaft 9 of the gear isw also arranged in Biäs & l 11, which drives the shaft 13 via a pinion 12. On the shaft 13 there is a pinion 14 aag @ b5mcht, which controls a pinion 15 ubQT a chain 16 * Bisses Bt ^ sdX I5 lät sjcf 3in shaft 17, which drives the dl © B ^ ck Dimensionehine ", (piping is, for example, ice © Seidenilpuekraefciehliae cl @ r type, as already mentioned in the Am © s? ik {misehen patent 3 090 500 \ md French patent 1 315 799 besoia? ieben), Boi äioser machine corresponds to © in © r Uhteehuagt; der WeXI © 17. © in great pressure cycle, -uohQl cLieao :? itfkZms' sx: .i-li dor Tersohiebwic * ztit & s rod corresponds to chain 1 * Wez'uerhin a crank pin 18 is wedged on dex «shaft 9, which drives a six-armed Maltese cross 19, which is attached to a shaft 20. On this shaft © is keyed in chain position 21, which drives the pinion 23 step by step via a chain.22 _t that is keyed on the same shaft 25 © pinion 24 aitniisatt. Έίη another pinion 26 allows the chain, its various rods

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Ι bring 27 ssm under the silk printing frame. This pinion is Mounted on a »era 28, which was raised in height with the help of a Screw »29 is adjustable for bridging objects Allow diameter.

The chain 1 also runs through a pinion 30 a shaft 31 and a pinion 32 on a shaft 33.

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These two shafts 31 and 33 are carried by a rocker arm 34 which rotates about the pivot point 35 so that the chain rolls up one after the other on the timing pinions 4, 30, 26, 24, $ 2 and $ *.

If the pinion 24, driven with a reciprocating motion, stops, does the pinion lift>? ' the rocker arm under the action of the pull of the chain, which is continuously moved by the pinion 5, while the Ritael 50 descends and the slackness of the chain timed out, dit, si.; ^l 5r the Virlr.uDg · of the constantly driven pinion 4 further aiolit,

Conversely, when the pinion 24 rotates under the action of the Geneva cross, then it takes the rocker arm in reverse Direction with, thanks on the one hand to the pinions 26 and 30 and on the other hand to the pinion 32.

The chain 1 is moved with a continuous movement. But it is necessary from time to time, be it because of one

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BATH ORIGINAL

Question of the printing ink, the silk frame or the hook knife to stop the printing machine without stopping the drying chain at the same time. In order to carry out this operation, the pinion 14 mounted on the shaft 13 which results in the continuous movement of the machine and the chain pinion 21 on the shaft 20 which results in the incremental movement of the chain are both driven by a claw system on the continuous shaft 13. The two claws 36 and 37 have a single tooth and slide on this shaft. On the discontinuous shaft 20, the two claws 36 and 37 have up to six teeth and slide on this shaft, so that if these two claw systems are disengaged at the same time, the pinion 21 becomes free and is only continuously driven by the chain. remains stationary while the pinion 14 and _s is stopped, the machine This simultaneous unlatching of the claw via a manual control 52 which acts on Ciabein 53 and 54, a push rod 55 are connected through.

Di © aerosol can 5 ₉ die voa. the rod 2, d @ i? is on the chain 1 IbQfGStigt _? gQtrage-E wl ^ d, "offers itself d © Hg © aä8 seJiritt-? j @ ig @ miter the Seidendnaekrahmea. 27 asu 'to carry out the printing of the di @ s © p aerosol can, the! driving the Ealtenzeit ά @ 2" Ketto It is necessary to bring it into the pressure position and to let it rotate synchronously with the shifting of the Eahsieiis «

An end part 38 is provided for bringing it into the printing position, under which two conical rollers 39 and 40 are attached are. On the other hand, a special device presses the aerosol can onto the cone of the owls and guides it into the end piece 38 a. This device consists of two rollers 42 and 43, each of which has a pointed part 44 and 45 and two has horizontal bearing surfaces 46 and 47. A further one is laid out in a tangential manner on this roller system Roll 48 attached.

This arrangement is mounted on a bracket 49 surrounding the carrier chain 1. This bracket 49 is moved by a pneumatic lifter 50. This jack is controlled by Onea ex \ f of the shaft 17 of the machine fixed cam 5I. When actuated, it pushes the tips 44 and 45 forward, thereby pushing the aerosol can, the bottom of which rises on the rollers 39 and 40, while at the same time lifting the neck of the aerosol can. This His is supported on the bearings 46 and 47, while the owl 48 holds him in height. The aerosol can is held between the end piece and the rollers 42 and 43. During this movement, the rod 2 has ceased to be in contact with the neck of the aerosol can and is located in the middle of the three points 46, 47 and 48.

As with all machines, the end piece 38 is synchronized with the displacement of the frame by a not shown, conventional rack and pinion system driven.

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ORIGINAL INSPECTED

.ίο- U36491

Printing takes place while the chain is at a standstill. When the printing is finished, the bracket 49 comes back backwards, backwards. The aerosol can falls onto hers again The rod and the chain are joined by the Eitasl 24, activated by the Maltese cross 19, mitgenoHimaxu Dia Satt © nizuii; so the printed aerosol can in the next kiln, where the drying of the print takes place.

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Claims (11)

V ^ δ> .- ·. U36A91 patent application P 14 36 491.1 July 8, 1968 4577 claims 1. Machine for printing on cylindrical bodies, in particular aerosol cans or tubes with large openings that open on a continuously driven 'benen transport chain are lined up, characterized in that the chain (1), which has two sprockets (24,26), one of which (24) can be driven intermittently, parallel under an Iruokrahmen (27) tdndurchgol ^ itst iat, ub & r two pinions (30,32), ϋ . ' e «- between the pinions (24,26) and each one in front of> behind these arranged in the correct transport _v continuously drivesai * ^ J:, ί I ^ '■'» \ j,) are provided, is guided in two loops; ima that in the transport path of the body (3) is the respective body to be printed (3) rod-free and rotatable holding the CtMfer (38,39, 40,44,4 ^, 48), which in a below the frame (27) located printing position is displaceable. 2. Machine according to claim 1, characterized in that the the pinion (30,32) which mediates the loops are attached to the two ends of a horizontal lever (24) which is mounted pivotably about a pivot point (35). 909819/0151 U36491 3. Machine according to claim 1 or 2, characterized in that a pinion (14) continuously driving the pressure frame (27) and an intermittently driving the pinion (24) Pinion (21) each via a claw coupling (36,38 or 36 bis, 37bis) is controlled by a continuously drivable shaft (9). 4. Machine according to claim 3> characterized in that the The claws (36,37) slide on a shaft (13), the rotational movement of which with the continuously driven shaft (9) is coupled, and that the two claws (36bis, 37bis) slide on a shaft (20) which has a Maltese cross (19) carries, which is intermittently controlled by a crank pin (18) on the continuously driven Shaft (9) is keyed. 5. Machine according to claim 4, characterized in that the Elauan by means of a common hand control (52) at the same time can be disengaged, which are opened by a push rod (55) connected g-wires (53? 5 ^) acts. 6. H & soMe. © according to one of claims 1 to 5, characterized in that that the continuously drivable pinions (4,5) can be driven via chains (7 * 8) by a pinion (6), which is shown on the continuously angetrisfoezisn Well® (9) is. 909819 / 015Ί _ ₁₃ - U36491 7. Machine according to one of claims 1 to 6, characterized in that that the gripper consists of an abutment (38) under which two conical support rollers (39, 40) are arranged, and consists of a bracket (49), each of which has two support rollers (42,43), two horizontal bearing surfaces (46,47), two conical support rollers (44,45) and one tangential to it has attacking support roller (48). 8. Machine according to claim 7, characterized in that the gripper on one of the transport chain (1) crosses Bracket (49) is arranged, which can be displaced into the printing position by a pneumatic cylinder (50). 9. Machine according to claim S, characterized in that the cylinder (50) can be controlled by a cam (5I) attached to a shaft (17) that drives the printing machine is. 10. Machine according to one of claims 1 to 9, characterized in that that the pinion (26) is mounted on a lever (28) which can be adjusted in height by means of a screw (29) is. 11. Machine according to one of claims 1 to 10, characterized in that that the claws (36,37) have a small number of teeth, preferably one tooth, and the claws (36bis, 37bis) have a large number of teeth, preferably six. 90981-9 / 01 S 1