BOGENSTANZUND - EMBOSSING MACHINE

The available invention concerns a sheet dance and - coining/shaping machine in accordance with the generic term of requirement 1.

Stamping machines cutting is also called geometrical cut forms, which in a circle, oval or polygonally as well as Fantasieformen of all kinds to be to be able in itself closed. Also the practices such as stamping machines with drilling tool, corners, geübten in the printing subsequent treatment, will punch to push off and registers ranked among this range. Punching effected against a punching document or against stamps, partly are there also Schervorgänge (see printing subsequent treatment, training manual for Buchbinder, Federal association pressure registered association 1996, page 351 FF.).

Packing materials from paper, cardboard, pasteboard or cardboard are punched mainly in the Bogenformat. During the punching procedure additionally in addition, Rilllinien or Blindprägungen can be brought into the use. This complex process makes it indispensable to punch the sheet separately. Since it acts with the final products around fastidious packing regarding technical and graphic remarks (for instance packing for cosmetics, cigarettes, pharmacy, food etc.), does not only become special requirements to the packing materials themselves posed, but there is for optimal results also punching tools with smallest tolerances and extremely precise and reliably working punching machines necessary.

The flat bed dancing does justice best to these requirements. The printed and sheet of the punching machine stacked on a pallet are supplied. In the machine first the sort the sheet in a sort mechanism, which are properly matching aligned then afterwards in an orientation mechanism, which can be punched, transferred by a gripper carriage and positioned accurately in the punching mechanism, takes place. The gripper carriages can be moved here at endless chains by the machine or be propelled however by linear drives.

The punching mechanism consists usually of a resting table provided with a counterplate and with punching and Rillwerkzeugen a provided over a stroke drive perpendicularly to the counterplate on and table mobile starting from. By these up and abbewegung from the cyclic between the table surfaces through led sheets the use is punched out and at the same time the grooves necessary for clean folding is imprinted.

In a following Ausbrecheinrichtung the waste over Ausbrechwerkzeuge is removed by machine. Depending upon equipment of the machine can be finally separated the punched use in a use separator for this planned.

A drive for a sheet dance and - coining/shaping machine is well-known from the DE 30 44 083 A1. The machine described herein possesses a firm Untertisch and one on and starting from mobile upper table for punching sheets from paper, pasteboard and such a thing. The movement on and starting from mobile upper table is realized over roles, which are arranged on two eccentric shafts arranged over the table. The upper table lies close with spring action against the roles on the eccentric shaft. The upper table is moved by a rotating motion of the eccentric shafts perpendicularly against the Untertisch. As a result of the eccentric cam drive an essentially sinusoidal stroke of the upper table arises in the course.

At the contact surfaces between roles and table hardened steel plates are arranged, which the printing and friction forces, which are expenditure-practiced by the roles, take up and to the upper table pass on. These steel plates can be wedge-shaped trained and consult then for the printing feed, as appropriate mechanisms are planned, in order to shift the steel plates concerning the leverage of the roles toward the wedge inclination.

With the devices after the state of the art it is not possible to suddenly interrupt the punching procedure while the machine with full speed keeps running, since the shown adjustment mechanisms are too slow.

The moreover one a problem results in the case of machines with a further station to the hot foil coinage. With this process it is compellingly necessary that the punching strength can be turned off within a clock rate. Otherwise the hot foil is applied on the secondary tool, as soon as it comes to a false plant of the sheet.

From the DE 33 13 790 C2 a further drive is well-known for a sheet dance and - coining/shaping machine. The crucible dance press exhibits a first, firmly in a machine rack arranged crucible and second, against the first deliverable crucible, which is adjustable over four to this articulated attacking elbow levers in setting direction. The elbow levers support themselves in each case over a supporting joint against the machine rack off and by a cam impulse are subjected. From this writing it is further well-known that at least one pair is adjustable supporting joints transverse to the setting direction. The adjustableness is made possible by the fact that the supporting joints are stored over joint bodies into camp half shells stored adjustably in the machine rack in each case. The solution revealed in this writing makes a suspending for the punching movement possible, however here an evasive action of a highly loaded joint is necessary. Therefore a permanently high adjusting force must be applied in the enterprise by the actuator.

Task of the available invention is it therefore, a sheet dance and - coining/shaping machine with a drive for the deliverable crucible to create, which avoids the described disadvantages.

This task is solved by a sheet dance and - coining/shaping machine in accordance with the characteristic characteristics from requirement 1.

In a favourable execution form the drive exhibits two wedge-shaped documents arranged one above the other, which are against each other adjustable. The wedges are adjustable over an adjustment device in each case, whereby the wedge is provided with an adjustment engine for punching force adjustment and the other wedge is subjected for the emergency interruption to a fast working actuator. This has the advantage that on the one hand the printing auxiliary order is exactly adjustable over an adjustment engine and on the other hand via the fast working actuator the punching strength can be suddenly adjusted on zero.

In a particularly favourable arrangement the wedge is adjustable for emergency interruption only into its two end positions. This makes a particularly simple and fast adjustment possible.

In a further preferential execution form the fast working actuator is a pneumatic cylinder. Thereby a fast and simple adjustment is favoured.

In a particularly favourable execution form the fast working actuator the wedge proceeds for emergency interruption against attacks. Thereby a fast interruption becomes particularly simple. The moreover one a reproducible position can be reached to the working stroke simply again.

In the designs preferential remarks the sheet dance according to invention and - are represented coining/shaping machine.

Show:

Fig. 1

the structure in principle a sheet dance and - coining/shaping machine in schematic representation

Fig. 2

the schematic representation of an adjustment device according to invention for the drive a sheet dance and - coining/shaping machine

In Fig. 1 is represented to coining/shaping machine 100 to punching, breaking out and placing the structure in principle a sheet dance and - by sheets from paper, pasteboard and such a thing. The punching and embossing machine 100 possesses an investor 1, a Stanzstation 2, a Ausbrechstation 3 and an arm 4, who are carried and enclosed by a common machine housing 5.

The sheet 6 by an investor 1 by a pile and over a Zuführtisch 16 the sheet dance and - are isolated and intermittently in sheet promotion direction F pulled through the different stations 2, 3 and 4 of the punching and embossing machine 100 seized coining/shaping machine 100 supplied and of grip arms at their front edge. The grip arms are fastened here to grip arm seaweeds 8 and these again to a transport system 7.

The Stanzstation 2 consists of a Untertisch 9 and an upper table 10. the Untertisch 9 is firmly in the machine rack stored and with a counterplate dargstellten more near to the Stanzmessern provided. The upper table is stored vertically on and off movably and is provided with the punching and Rillmessern.

The grip arms at the grip arm seaweeds 8 transport the sheet 6 of the punching and embossing station 2 into the following Ausbrechstation 3, which is equipped with Ausbrechwerkzeugen. In the Ausbrechstation 3 with the help of the Ausbrechwerkzeuge the unnecessary wasters from the sheet 6 are out-pushed downward, whereby the wasters 11 fall into a container-like car 12 pushed under the station.

From the Ausbrechstation 3 the sheet arrives into the arm 4, where the sheet is only simply put down either, or a separation into individual use takes place however at the same time. The arm 4 can contain also a pallet 13, on which the individual sheets in form of a pile 14 are stacked, so that after reaching a certain Stapelhöhe the pallets with the stacked sheets 14 from the range of the punching and - coining/shaping machine 100 to be away-driven know.

In Fig. an adjustment device according to invention for the drives the sheet dance and - is schematically represented 2 to coining/shaping machine. With the represented drive of the upper table it concerns an eccentric cam drive, which particularly worked for the drive of punching mechanisms. Usually the upper table is propelled by two eccentric shafts, by those in Fig. 2 however only one is represented. The eccentric cam drive consists of an eccentric shaft 15, which is carried in way not represented more near around the axle 17 swivelling by the not represented yoke. The eccentric shaft 15 is propelled by means of a not represented spur gear. At the ends of the eccentric shaft 15 one roll-stored Rolle16 each sits. At the contact surfaces between roles of 16 and upper table 10 wedges 18, 19 are arranged. The wedges 18, 19 are arranged in such a way with the fact that they touch themselves with their diagonal pages 18 ' and 19 ', whereby the wedge 19 forms an inclined level on the wedge 18 are adjustable. The wedge 18 is by an adjuster, for example a screw pillar 24, connected with an engine 21. Over this adjustment arrangement a punching printing adjustment can be caused, as the wedge 18 is shifted into the directions of arrow of the arrow A. By this arrangement the punching printing adjustment can be adjusted very finely. How already mentions above, the upper table 10 by two Exzenterrollen 15 is usually propelled, which exhibit a roll-stored role of 16 ever at the ends. Therefore there are four wedge arrangements 18, 19, over which an attitude of the punching printing is made possible.

The lower wedge 19 is connected with a pneumatic cylinder 22. The pneumatic cylinder is subjected 23 accordingly over pressure pipes 23, ' with compressed air, so that it can in reverse suddenly adjust the wedge 19 in the directions of the arrow B von Anschlag 20 to attack 20 ' and. Thereby fast going back of the punching printing on zero is ensured. It is naturally just as conceivable to cause the adjustment device for the wedge 19 by means of other fast working actuators.