DE2355926A1 - PRINTING MACHINE FOR PRINTING ARTICLES - Google Patents

Description

In particular, it has been proposed to provide a machine having a Inking station with a plate carrier plate and a movably mounted slide for painting over and coloring such a plate, a printing post with a slide plate and a transfer arm with transfer stamp, which on the one hand can be rotated back and forth in parallel is mounted to the said boards, namely between the said points and on the other hand to and fro movable perpendicular to the said Boards at each of the named locations.

But with such a machine there is only one printing for two lowering movements of the stamp carrier transfer transfer arm, wherein the first lowering movement of said arm is necessary to remove the color from the cliché.

Accordingly, the performance of such a machine is relatively low and in addition, it does not allow two-color printing.

In order to overcome these drawbacks, a machine has also been proposed wherein the transfer arm is not reciprocatingly rotatable but is mounted in rotation with step-forward, the arm having a plurality of transfer stamps in such a way that with each drop, at the same time the removal of color from a cliché by a transfer stamp and the printing of an object is carried out by a further transfer stamp.

But the step-by-step feed control of such an arm requires relatively complicated mechanisms and, moreover, the machine obtained in this way is therefore relatively less compact than the transfer arm is a full one The scope is covered and a color space is available for each printing station is.

In addition, and although, for example, two clichés and four transmission

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stamps are available, there is no possibility of successive two- ' color printing at one printing station.

The subject of the invention is a machine for printing a any object according to the procedure "a report de Bienne", which this Does not have disadvantages and also has other advantages.

The machine is of the type that has an ink station with a cliché support plate and a carriage movably mounted for sweeping and coloring of such a cliché, a printing station with an object carrier plate and a transfer arm, which has a transfer stamp carries and on the one hand is mounted so as to be rotatable back and forth parallel to the said boards between the said places and on the other hand is movable in a reciprocating direction perpendicular to said boards at each of said places, characterized in that they have a second Has color space which is similar to the first and is arranged symmetrically to this with respect to a plane which extends through the axis of rotation of the Transfer arm and the middle area of the printing area and in that a second transfer arm for said second color area is provided, which is keyed on the first and also a transfer stamp wearing.

So the machine has due to the reciprocating movement of the transfer arm with each lowering movement a decrease in color on Cliché in the case of a color space by a first acceptance stamp and printing on an object at the printing space, with the color through beforehand a second transfer stamp was removed from the other color space.

The performance of the machine is doubled while having two color spaces serving a printing station, on the other hand, the space requirement remains minimal. ■

In the above, it was assumed that the clichés of color

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space are identical in order to have the same imprint on successive objects, de to apply, with each lowering of the transfer arm a Object is printed.

But the clichés of the color places can be different, for example to apply different colors to the same object, whereby such an object in this way in two bars after two lowering movements of the transfer arm is printed.

Indeed, it has been found that when used for the formation of the transfer stamp Using a synthetic material of the type of silicone rubber, it was possible successively at very short time intervals allow two colors to be applied to the same object without first drying the first layer and without it becomes discolored, disturbed or removed when the second color is applied.

This remarkable advantage can be attributed to a kind of passivation that the color used with regard to the special material design of the transfer stamp after a first contact with the said color exposed to said material.

According to a preferred embodiment, there is between a transfer arm the machine according to the invention and the carriage of the printing station, which belongs to it, a piston rod device for controlling this carriage intended.

In this way, the control of such a slide is advantageously ensured.

^; '· Lit by such a transfer arm without any further special drive device.

Further features and advantages essential to the invention emerge from the following

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in the description, with reference to the drawings, exemplary embodiments explained.

In the drawings show:

"Fig. 1 is a perspective overall view of the machine according to the invention,

Fig. 2 is a partial plan view of the said machine, Fig. 3 is a partial sectional view along the line III-III of Fig. 2;

FIG. 4 shows a partial view in elevation in the direction of arrow IV in FIG. 2 with partial cut and tear-off,

, Fig. 5, on a larger scale, a partial sectional view of this machine according to the line V-V of Fig. 1,

FIG. 6 shows a detailed sectional view along the broken line VI-VI of FIG. 5, 7 shows a detailed elevation view in the direction of arrow VII in FIG. 6, FIG. 8 is a partial sectional view along the line VIII-VIII of FIG. 5,

FIG. 9 shows a partial elevation view in the direction of the arrow IX in FIG. 8 and 10,

FIG. 10 is a partial sectional view along the line X-X of FIG. 9.

According to the embodiment shown schematically in FIG machine according to the invention, a housing 10 with a control block 11, j

a printing station 12 located in front of this control block 11 and two color

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• Pop ISA, 13B on both sides of the latter.

The control block 11 is driven by a motor 14 and has a Drive shaft 15, which is driven in rotation by a belt that connects to the shaft of motor 14, and an output shaft 16.

The control block has between the drive shaft 15 and the output shaft 16 11 organs in correspondence to a continuous rotation of the drive shaft 15 are suitable for a cyclical movement of the shaft 16 to produce, which means that successively a rotation of approximately in one direction, an axial lowering movement, an axial lifting movement, a rotation essentially by 90 in the opposite direction, an axial lowering movement and an axial lifting movement can be carried out for the purpose of returning to the initial position.

Such a control block, which is sold in particular by the FERGUSON company is known per se and will not be described in detail below. Suffice it to say that the rotations of the shaft, for example be made by a sector of the teeth with one on this The splined pinion meshes with the shaft, while the axial displacements are ensured by a fork, the teeth of which are connected to one another the hub splined on the shaft are engaged, said fork being driven in the direction of rotation by a cam.

According to the invention, two transfer arms 17A, 17B are wedged onto the output shaft 16 of the control block 11, each of which is connected to the color spaces 13A, 13B and has a substantially 90 angular distance from one another.

Each of these transfer arms has a transfer stamp 18A, 18B, which, for example, by screws, an axially adjustable thread axis moved into a corresponding position on the corresponding transfer arm

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screwed .be, parallel to the shaft 16, as shown in section in the Fig. 4 is shown in relation to the transfer arm 17A.

On each transfer arm 17A, 17B there is also one on the other side of the shaft 16 Perforated bar 2OA, 2OB attached, which extends essentially in the 90 direction with respect to the corresponding transfer arm 17A, 17B.

The printing station 12 has a console 21 in a fixed connection with the housing 10 with a slide plate 22; an object to be printed 23 was there schematically in broken lines in FIGS. 1 and 4 shown. "

The color spaces 13A, 13B are symmetrical to each other with respect to a through the axis of rotation AP of the transfer arms 17A, 17B or through the central area ZM of the printing area 12, i.e. plane running through the middle zone of the slide plate 22.

A single one of the mentioned color spaces, i.e. the color space 13A, will be used in the following described, it being understood that the color space 13B has an analogous constitution.

The color space 13A has a cliché support plate 25A to which the coloring cliché 26A is applied.

A container for paint 27A is to the side of plate 25A between the latter and the control block 11 attached.

A carriage 28A is movably mounted above the plate support plate 26A. tiert, or above the associated paint container 27A.

In this regard, the slide is movably mounted on parallel guides 29A, which frame the circuit board 25A and the paint container 27A, with a

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Linkage device 3OA the connection to the associated transfer arm 17A manufactures.

Said linkage 3OA has a rod 31A, which is preferably in the Length is adjustable, as is emphasized in Fig. 3, so that positioning of the carriage 28A is possible. At one end is the said one Rod 31A is articulated on the carriage 28A via an axis 32A and on the other it carries an axis 33A which is movable in a passage of the Transfer arm is inserted, said passage preferably is formed by a stepped piece 34A, which is positioned inwards, half of the perforated bar 20A of the transfer arm 17A can be regulated to regulate of the stroke of the carriage 28A, as shown in Figs. 2 and 3, a ball bushing can be provided between the axle 33A and the stepped portion 34A in which it is to move.

As can be seen in Figure 5, carriage 28A carries two scrapers, one 35A for coloring the cliché 26A, the other, 36A, for scraping the Ink residues on the cliché.

The scraper 35A is attached overhanging the end of a metal plate 37A and this is carried by a cap 38A which is movably mounted on the carriage 28A, perpendicular to the plate support plate 25A.

In this regard, the cap has two eyelets 39A which are moveable on two Axes 40A are mounted, which are guided by the carriage 28A.

At right angles to these axes 40A, the cap 38A carries a pin 41A which, 9, protrudes outwardly and is mounted in one of the arms 42A of a column 43A which is rotatably mounted at 44A on the carriage 28A, wherein the arm has the shape of a fork in this regard and the pin 41A is guided in a perforated strip 48A.

Preferably, and as shown, cap 38A includes scraper 35A

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so that it is carried over a block 45A which is in position is adjustable, perpendicular to the cliché support plate 25A thanks to a Threaded axis 46A, which is inserted through a screw connection into a threaded passage 47A of the cap 38A, which allows the contact pressure ' of the scraper on the circuit board.

An analogous arrangement is chosen for the scraper 36A: this is through a block 50A is carried, which is adjustable in position on the cap 51A perpendicular to the cliché support plate 25A thanks to a threaded axis 58A which is inserted into a threaded hole 59A of the cap 51A and said Cap 51A in turn is pushed over eyelets 52A onto axles 53A, which are guided by carriage 28A perpendicular to the board mentioned.

Preferably, and as shown in Figure 7, the scraper 36A is rotatable mounted on the block 50A that supports it, around an axis 55A parallel to the cliché carrier plate 25A.

This arrangement allows the inclination of the scraper 36A to be regulated; a screw 56A carried by the latter is pushed into the perforated strip 57A, FIGS. 6 and 7, for the purpose of blocking the scraper 36A after regulating its inclination.

One arrangement analogous to that for the scraper 35A is that of the scraper 36A carrying cap 51A parallel to the plate support plate 25A with a Pin 57A is provided, which protrudes outwards, FIGS. 8 and 9, and which is pushed into a second, fork-shaped arm 58A of the column 43A and into a perforated guide rail 49A.

As can be seen in FIG. 10, there is a grid device 60A with the column 43A in view of the separable "locking of the latter in one of the two Extreme positions connected, these extreme positions * being symmetrical to one another

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are in terms of a mean vertical arrangement passing through the axis 44A which lies between caps 38A and 51A.

"For the purpose of driving, the column 43A carries a roller 62A, which is intended to to cooperate with the two stops 63A and 64A that are adjustable mounted in a control device 65A, which is parallel to the guides 29A of the carriage 28A runs on its path, FIGS. 1 and 3.

As. shown schematically in Figures 3 and 4, the plate support plates and slide plates, preferably height-adjustable, mounted on the housing 10.

In the following it is assumed that an object to be printed 23 is attached to the slide plate 22 of the printing station 12 and the transfer arm 17A is in the upper position, as shown in FIG.

At the same time, the carriage 28A of the color space 12A projects beyond the cliché 26A on the plate carrier plate 25A of the printing station 13A and this plate is colored by a method described below; the Scraper 36A is arranged in the lower position against the cliché 25A, while the scraper 35A in the upper position away from the cliché, Fig. 5, is arranged.

In the same way and as will be shown in the further course, carries the transfer stamp 18B of the transfer arm 17B in connection with the printing station 13B a print which it previously of the cliché at the printing station 13B has decreased.

A print cycle begins.

First there is a quarter turn of the shaft 16 in the direction of arrow 60 in FIG. 1.

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At the end of this rotation, the transfer ram 18B is located above of the object 23 at the printing station 12 and the transfer stamp 18A is located above the cliché 26A at the color station 13A, this The cliché of the carriage 28A has been removed from the named place.

In fact, he's on the wave. 16 wedged transfer arm 17A in the course its rotation over the linkage 30A the displacement of the carriage 28A from the cliché 26A to the associated parking space 27A above the two the latter causes.

In Fig. 2, the end position of the transfer arm 17A is in broken lines shown schematically.

During the transverse movement, the carriage 28A has the scraper 36A against the Cliché 25A pressed to dry or remove the excess ink.

At the end of the transverse movement of the carriage 28A, the roller 62A of the column is 43A come into contact with the stop 63A, which is for this purpose on the device 65A is attached, causing the column to tip over.

This tilting causes the scraper 36A to rise away from the Plate 25A removed, and the lowering of the scraper 35A, which is then inserted into the Ink tank 27A is immersed.

Then it comes to the lowering of the shaft 16, what the attachment of the on the Transfer stamp 18B causes existing pressure on the object 23.

At the same time, the transfer stamp 18A is pressed onto the cliché 26A and takes off the color there.

Then the shaft 16 rises, which releases the object 23, the one

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first imprint received.

When the machine is used for single printing, and after the clichés present on the printing positions 13A and 13B are identical, the previously printed object 23 is removed from the slide plate 22 and a new item to be printed is attached.

However, if two different colored prints are applied successively must, the clichés at the color areas 13A and 13B are different and the object 23 is left at the printing area 12.

Then it comes to the rotation of the shaft 16 by a quarter turn in the opposite direction, i.e. in the opposite direction to the indicated by arrow 60 in FIG. 1.

At the end of this revolution, the transfer stamp 18A is also located the color he took from cliché 26A again above the Subject 23.

At the same time, the transmission arm 17A has the return via the linkage 30 of the carriage 28A to above the cliché 26A.

During this return movement, the scraper 35A runs in the lower one Is able to put in the container 27A and pushes paint in front of it, which is the cliché 26A paints over it and colors it accordingly.

At the end of this return movement, the roller 62A of the column 43A comes with it of the stop device 64A in connection, which, as stated above, is arranged on the path of the carriage 28A, which leads to a previous tipping over causes reverse overturning of the column part 43A.

As a result of this tipping over, the scraper 35A is returned to the upper position.

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guided while the scraper 36A is lowered to the cliché 26A, such as described above to dry off further.

Then it comes to the lowering of the shaft 16, after which the Transfer stamp 28A is pressed against the object 23 / as shown schematically in broken lines in Fig. 4, whereupon the latter the color or print is transferred.

Of course, similar processes run at color space 13B with a semi-cycle Distance with respect to the previous cycle.

The shaft 16 rises again and a new print cycle can begin.

The material used to form the transfer dies 18A, 18B is preferably synthetic rubber or silicone.

Of course, the invention is not limited to those described and illustrated Embodiments, but includes all variants.

In particular, in the example shown, the paint scraper 35A is related to the cliché carrier plate inclined, as well as the drying scraper 36A, but the directions of inclination could also be reversed to one another.

In addition, in the example shown, the ones to be printed are attached Objects at the printing station and their removal after the printing process manually. It is of course possible to use the machine according to the invention to be provided with any loading and / or removal device, which ensure an automatic process.

In particular, and according to an embodiment not shown, it is possible with the printing station a table or a rotation tower, a

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To connect sled or other powered means of transport that Advances step by step above the mentioned place and so the automatic Loading of objects to be printed is made possible synchronously with the drive of the transfer arm, the said of the said Objects carried by means of transport at the printing station keep the time necessary for the printing processes, both in the case of inking and with two-color printing.

Especially with two-color printing, there is a reduction between the drive the transport device and that of the transfer arm provided in such a way that each object to be printed at the printing station for two successive Lowering processes of the transfer arms mentioned remains.

In addition, each transfer arm can carry several transfer stamps, which are arranged, for example, along such an arm, or transversely to the same, in order to simultaneously move several objects through a single one To print transfer arm, which increases the performance of the machine; of course, the number of clichés and the slide plate are provided accordingly suitable for holding several objects.

Finally, and after one shown in dashed lines in FIG As a variant, two columns 43A can be provided on either side of the slide 28A, as well as two devices 65A at the stops 63A, 64A accordingly.

Patent claims:

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Claims (1)

21,299 Patent claims: ί ΐΛ Machine for printing on any object according to the so-called "report de Bienne" (Bienner transmission method) of the kind, one with a cliché support plate and one movable for the painting over and inking of such a cliché with a movably mounted carriage provided, one provided with a slide plate Printing station and a transfer arm, which carries a transfer stamp and which on the one hand reciprocates parallel to the aforementioned Blanks rotatable between said places and on the other hand movable back and forth perpendicular to said plates of each of said Places is mounted, has such a machine thereby characterized in that it has a second, similar to the first and with respect to a plane through the axis of rotation of the transfer arm and the plane running in the middle zone of the printing area has a symmetrical color area, and in that for said second color area a second transfer arm is provided which is keyed onto the first and also bears a transfer stamp. 2. Machine according to claim 1, characterized in that the two transfer arms have a substantially 90 angular distance from one another. 3. Machine according to claim 1 to 2, characterized in that : Between a transfer arm and the associated color space there is a linkage to drive the carriage. 4. Machine according to claim 3, characterized in that the ■ said linkage, preferably adjustable in length, at one end 409820/0380 of the slide and at the other end one in a passage of the Has transfer arm inserted axis resting piston rod. 5. Machine according to "claim 4, characterized in that said axis in a stepped, in the position in a perforated strip of the Transfer arms adjustable workpiece is inserted. 6. Machine according to claim 3, characterized in that the carriage on its guides above the associated cliché carrier plate and a paint container attached to the side thereof is movable. 7. Machine according to claim 6, characterized in that the carriage carries two scrapers, one for coloring the cliché, the other for drying the same. 8. Machine according to claim 7, characterized in that each Scraper is carried by a movable cap mounted on the carriage perpendicular to the Klisehe carrier plate, the cap being a scraper is connected to that of the other via a column that rotates around a Intermediate axis is arranged between the caps, and wherein said column is tilted by stops, which are preferably in height, adjustable way on the slide track near the ends of this track are mounted. 9. Machine according to claim 7, 8, characterized in that at least one of the scrapers is adjustable perpendicular to the Kliseheeträgerplatte. 10. Machine according to claim 7 to 9, characterized in that at least one of the scrapers is inclined with respect to the Klisehe carrier plate, this inclination is preferably adjustable. 40 ~ §8 * 2 07 Ü 3 8 0 11. Machine according to claim 1 to 10, characterized in that ; that a driven means of transport is connected to the printing station, _ ¹ such as a tower or a rotating table, a platform or other; which is suitable to feed the objects to be printed synchronously ^with: allow the Transferann zui. 12. Machine according to claim 11, characterized in that a Reduction gear between the drive of said transport device and that of the transfer arm is provided in such a way that each ■ object to be printed remains at the printing station during two successive lowering of the transfer arms mentioned. - 13. Machine according to claim 1 to 13, characterized in that each transfer arm with several transfer stamps for the simultaneous Printing multiple items is provided. 409.820 / 0380 Blank page