EP0806288B1 - Press, especially for compressing plate-like workpieces - Google Patents

Abstract

At least two benches - one a fixed (3) bench and the other a lifting (2) platform - adjoin a pressure chamber (4). The press (1) has a coupling system (11) for at least one press (1a,1b) over or under it. The connection has at least one plug-in part in at least one bench for a passage through. The benches can be in at least two pieces and have superimposed work tops (7,8) whose hollow interiors contain honeycombed reinforcement ridges (14). The benches may be arranged with a permeating opening (11), and that the coupling system may have five openings.

Description

The invention relates to a press, in particular for Pressing plate-shaped workpieces with the characteristics the preamble of claim 1.

Presses with a pressure chamber are known, in particular for pressing plate-shaped workpieces.

In addition, presses with a fixed press table known that have a pressure chamber on both sides, i.e. a each through the fixed press table and one above and limited movable lifting table arranged underneath Pressure chamber. These pressure chambers can usually can be opened and closed independently of each other, so that these pressure chambers independently of each other with pressed material can be fed to the pressed material independently of the to be able to edit the second pressure chamber.

However, it is common for technical reasons required more than two batches of pressed material in different Need to process cycles, i.e. different pressures or different residence times, especially in With regard to continuous processing, i.e. with continuous delivery to the press, always to be able to provide sufficient pressing space to each Corresponding delivered batches a pressing to be able to undergo.

The conventional presses offer the one Possibility of different, previously described presses with only to arrange a pressure chamber next to each other or in a row, doing so with a significant economic disadvantage goes hand in hand, i.e. it takes an immense high space and associated high costs both in terms of required space as well as the resulting Transport routes.

The previously described press having two pressure chambers alleviates the problem without actually reducing it remove.

Another solution is a so-called Multi-daylight press, which should offer the possibility open individual pressure rooms independently of each other.

As a last presses are known in which a lifting table is arranged between two fixed press tables, so that two mutually adjacent pressure spaces alternately can be opened and closed.

Again, an attempt is made to get a press ready which offers the possibility, e.g. continuously Process the material to be pressed can, the material being pressed in a pressure chamber while the other pressure chamber is being fed or emptied can.

However, it is common to all these presses that the user already when planning or buying the press must anticipate expected capacity, i.e. he can Acquire press of various designs, but without the possibility of a simple and therefore more practical and to have inexpensive retrofitting or upgrading, i.e. a needs-based design of the press.

DE-U-9 413 113 is a press with at least two superimposed pressure rooms known at at least two pressure spaces are arranged one above the other at which a lower fixed press table is provided on which is then followed by a so-called lower lifting table, which delimits the lower pressure chamber and in which another, above the lower lift table, arranged and over the Additional lifting table supporting the lifting cylinder is provided, which delimits an upper pressure chamber, between them two lifting tables are arranged directly lifting cylinders, i.e. in a press with e.g. two pressure rooms are the individual lifting tables coupled via the lifting cylinders, i.e. as it were connected in series, so that at a possible Change in the press and / or e.g. Increase substantial Assembly work is necessary and beyond Press frame is required, on the one hand has appropriate lead frame and on the other how evident from the publication, e.g. upper transverse yoke makes necessary so that in the case of an increase or expansion the press, as explained, on the one hand not insignificant Conversion work is necessary and the other is not insignificant space is required.

It follows that both these and the others Pressing through a large unwanted space requirement award.

The invention is therefore based on the object of a press, especially for pressing plate-shaped workpieces ready to provide, which is characterized by a small footprint with high efficiency and the possibility of stacking, i.e. Layering two or more presses on top of each other distinguished without being of a high constructive nature Effort requires and this while maintaining the possibility control of the individual presses, i.e. Retention the advantages of single presses and ultimately the possibility a simple disassembly, i.e. the possibility of to separate layered presses again, i.e. one needs-based design.

This task is done in a press of the type mentioned Genus with the characteristics of the characteristic part of the Claim 1 solved. More beneficial Embodiments of the invention are the subject of Subclaims 2 to 26.

Characterized in that according to the invention the press a device designed with at least one plug-in means in at least one table arranged and this least partially penetrating breakthrough, it is possible the press by simply coupling or stacking to couple further of the presses according to the invention in such a way that the presses are stacked on top of each other can without the functionality of anyone who is so arranged presses suffers from it. Rather, it is The usual usability of the individual presses remains guaranteed and this in the smallest space, as well as Possibility of introduced material at this work station lead to different pressure chambers or pressure rooms can and during the pressing process, i.e. editing a press with another press to be processed To supply material without this material workstation positioned elsewhere, i.e. Single press would have to be fed.

The inventive design of the press in addition e.g. Stacking or layering of Single presses according to the invention achieved that simultaneously all pressure rooms can be closed and / or opened or to close individual pressure rooms if necessary and others have to be opened, i.e. the press or the stacked Individual presses can be moved to zero, i.e. as set out above e.g. be closed overall.

The configuration according to the invention makes it possible to reduce any pressure spaces that may be present, that is to say to reduce the existing pressure spaces to zero, for example by stacking the presses according to the invention, ie to close them completely without it being necessary for one or more pressure spaces to remain open, ie it is as explained, it is possible to close and / or open all existing pressure rooms at the same time.
In addition, the press according to the invention offers the possibility of increasing the workstation as needed, ie there is no need, as has been the case up to now, to provide a press designed for the growth of the material to be processed, ie to have to commit itself at this stage and / or unnecessarily capital to tie.

Rather, as already stated, the workstation in Modular construction can be upgraded piece by piece, i.e. be adjusted as needed.

In addition, a precise and secure fit of the to be stacked on top of one another or in a modular design guaranteed to stacking presses without it noteworthy or constructively complex conversion or Retrofitting is required.

A press is also provided, in which the Devices for coupling with other presses like this are designed so that the other presses on each other simplest but all the more effective way to connect can and at the same time a forced positioning experienced without there being a common Machine frame, i.e. that with each opening or Disassembly for a constructive conversion of the entire system is coming.

The breakthrough is completely penetrating the table designed, this enables flexible use of the Tables in the press, i.e. the table or parts of the table can be used as both a lower and an upper table become.

If the device has five breakthroughs, it will on the one hand a firm fit is guaranteed and on the other hand a optimal positioning of the one above the other Press.

Are the breakthroughs at least in the pressure chamber limiting tables and are the breakthroughs as Bores and the plug-in as precisely fitting in the bores designed to be inserted bolt, it is a constructive design chosen, on the one hand The highest degree of precision is possible and on the other hand, one simple and therefore economical construction guaranteed.

Are the tables designed in several pieces, and in particular designed in two pieces, this is a maximum Flexibility in using the tables achieved, i.e. with a Minimum design effort will be a maximum Diversity of variants possible.

Assign the tables two table tops to be arranged one above the other open and are the table tops of a table from each other designed differently complementary, the table tops facing each other of the printing room limiting tables are designed in the same way and the table tops facing away from each other the the printing room delimiting tables are also designed identically, this creates the possibility, e.g. at appropriate layering of several presses on the each facing table tops of the tables of the to dispense with presses arranged one above the other, so that e.g. then the adjacent, the, the delimiting superimposed pressure chambers Supplement the table tops of the presses arranged one above the other, without the individual presses merging, i.e. their way of working and job opportunities and above it is also achieved that the overall height of the one above the other layering presses is reduced overall, i.e. the individual presses according to the invention at a minimum Ensure optimum flexibility in terms of overall height.

Are the individual table tops that form the tables both adjacent to and away from the pressure space, the tables can be arranged so that they can be arranged this feature to a high degree of flexibility in terms of Connectivity as well as the design of the press according to the invention.

Is the tabletop hollow and shows it in yours Interior reinforcement ribs on that particular are designed honeycomb, so plates and thus tables provided that stand out for a high Characterize stability with low weight, so that a press with a relatively low weight provided. This brings with it both in manufacturing, as well as during transport, installation and ultimately with a possible stacking of the presses considerable constructive and economic advantages.

Are the honeycomb reinforcing ribs on their own webs touching each other at least partially arranged welded, this is a reinforcement of the individual table tops with the least amount of work reached.

Are four, the pressure chambers, with a pressing pressure provisioning facilities is the facility provided with pull and / or guide rods and are the pull and / or Guide rods guide the lift table in with it Effectively arranged, so this enables a Guiding the lifting table through the press pressure loading device itself, i.e. the lift table will moved without tilting, without it being external, i.e. additional guides are required, i.e. be here too constructive designs chosen that are extremely enable compact design of the press.

If the fixed table shows the pull and / or guide rods leading tours, the facilities have one Pressure cylinder, the pressure cylinder stands over piston rods with the pull and / or guide rods in action and is the pressure cylinder on / or in the fixed table with which Piston rod pioneered by the lifting table, so also achieved in that the device for generation of a press pressure is arranged to save space, i.e. also here a constructive design is chosen, which due to low design effort combined with high Efficiency and compact design.

Points the side of the lifting table facing the pressure cylinder a coaxial with the impression cylinder that can be received in the impression cylinder arranged opening and the opening is at least one the table top of the Lifting table penetrating bore, so the Possibility created not to the side of the facility Need to attach tables, but rather within the Effective range or the lifting range of the lifting table, i.e. with the smallest space requirement and at the same time high Efficiency.

If the area adjoining the bore shows the a second notch forming the table on, this will provide the necessary freedom of movement for the Pull and / or guide rods inside the tables guaranteed, i.e. there is no need to attach the train and / or Guide rods outside the tables, so that too Here a constructive solution is chosen that is compact Design of the press according to the invention guaranteed.

Is the hole with a spanning the entire hole height extending slot provided, is achieved in that with appropriate movement of the lifting table on the Pressure cylinders not arranged supply lines be damaged, i.e. the supply lines the simplest way to arrange them on the impression cylinder without the risk of damage.

Assign the table tops four to one each Bores serving printing cylinder and are the bores the table tops offset to the holes of the others Table forming table tops arranged, so it will achieved that the table tops are manufactured in series can and despite the economically favorable Possibility of manufacturing presses in different positions arranged printing cylinders can be provided especially with regard to stacking the presses, so that the presses to be stacked one above the other are offset have mutually arranged pressure cylinders.

Has the table top four the attachment of the train and / or Guide rods and a movability of the train and / or Guide rods and facial expressions enable notches and the notches of the table tops are offset from the Notches of the other table tops forming the table arranged, is also achieved here that despite close to series production or series production of the individual Tabletops and the associated inexpensive Design of the press ensures that in particular with offset printing cylinders the necessary Freedom of movement of the pull and / or guide rods and the associated facial expressions is guaranteed.

Fig. 1

eine Seitenansicht der erfindungsgemäßen Presse entsprechend eines ersten Ausführungsbeispieles je hälftig dargestellt in geschlossener und geöffneter Position,

Fig.2

eine schematische Draufsicht mit Teilschnitt des oberen Tisches aus Fig.1,

Fig.2a

eine Detailansicht der Versteifungswabe aus Fig.2,

Fig.3

eine Seitenansicht der erfindungsgemäßen Presse entsprechend eines zweiten Ausführungsbeispieles je hälftig dargestellt in geschlossener und geöffneter Position,

Fig.4

eine schematische Draufsicht mit Teilschnitt des oberen Tisches aus Fig.3,

Fig. 5

eine Einzelteilzeichnung eines Tisches mit Teilschnitt mit innenliegenden Zylinderaufnahmen in Draufsicht,

Fig. 6

einen Schnitt nach Linie B-B aus Fig.5,

Fig. 7

eine Einzelteilzeichnung einer Tischplatte mit Teilschnitt mit ausliegenden Zylinderaufnahmen in Draufsicht,

Fig.8

einen Schnitt nach Linie B-B aus Fig.7,

Fig.9

eine perspektivische Explosionszeichnung der Tische mit Pressenfuß entsprechend des ersten Ausführungsbeispieles der Presse gem. Fig.1,

Fig.10

eine perspektivische Explosionszeichnung des Tisches mit Pressenfuß entsprechend des zweiten Ausführungsbeispieles der Presse gem. Fig.3,

Fig. 11

eine Detailzeichnung des Kraftumlenkungs- und Führungssystems in Seitenansicht bei geöffnetem Druckraum,

Fig. 12

eine Detailzeichnung des Kraftumlenkungs- und Führungssystems in Seitenansicht bei geschlossenem Druckraum,

Fig.13

eine Detailzeichnung des Kraftumlenkungs- und Führungssystems in Seitenansicht gem. Fig.11,

Fig.14

eine Detailzeichnung des Kraftumlenkungs- und Führungssystems in Draufsicht gem. Fig.11,

Fig.15

eine Detailzeichnung eines am Tisch angeordneten Pressenfusses in Seitenansicht,

Fig.16

eine Detailzeichnung eines am Tisch angeordneten Pressenfusses in Draufsicht,

Fig.17

eine Detailzeichnung des Pressenfusses in Seitenansicht aus Fig.15,

Fig.18

eine Detailzeichnung des Pressenfusses in Draufsicht aus Fig.16 und

Fig. 19

eine Seitenansicht dreier übereinander angeordneter und kombinierter Pressen entsprechend des ersten und zweiten Ausführungsbeispieles je hälftig dargestellt in geschlossener und geöffneter Position.

In the drawing, two exemplary embodiments of the press according to the invention, in particular for pressing plate-shaped workpieces, are shown schematically, and that shows

Fig. 1

3 shows a side view of the press according to the invention, each shown in half in the closed and open positions,

Fig. 2

2 shows a schematic top view with a partial section of the upper table from FIG. 1,

Fig.2a

2 shows a detailed view of the stiffening honeycomb from FIG. 2,

Fig. 3

a side view of the press according to the invention according to a second embodiment, each shown in half in the closed and open position,

Fig. 4

2 shows a schematic top view with a partial section of the upper table from FIG. 3,

Fig. 5

an individual part drawing of a table with partial section with internal cylinder receptacles in plan view,

Fig. 6

4 shows a section along line BB from FIG. 5,

Fig. 7

an individual drawing of a table top with partial section with exposed cylinder receptacles in plan view,

Fig. 8

4 shows a section along line BB from FIG. 7,

Fig. 9

a perspective exploded view of the tables with press foot according to the first embodiment of the press acc. Fig.1,

Fig. 10

a perspective exploded view of the table with press foot according to the second embodiment of the press acc. Fig. 3,

Fig. 11

a detailed drawing of the power deflection and guidance system in side view with the pressure chamber open,

Fig. 12

a detailed drawing of the power deflection and guidance system in a side view with the pressure chamber closed,

Fig. 13

a detailed drawing of the power redirection and guidance system in side view. Fig. 11,

Fig. 14

a detailed drawing of the power redirection and guidance system in plan view gem. Fig. 11,

Fig. 15

a detailed drawing of a press foot arranged at the table in side view,

Fig. 16

a detailed drawing of a press foot arranged on the table in plan view,

Fig. 17

a detailed drawing of the press foot in side view from Fig. 15,

Fig. 18

a detailed drawing of the press foot in plan view from Fig.16 and

Fig. 19

a side view of three superimposed and combined presses according to the first and second embodiments, each shown in half in the closed and open position.

As can be seen in FIG. 1, the press according to the invention 1 one, one through an upper and lower table 2, 3 limited pressure space 4.

The lower table 3 is here Embodiment by press feet 5 at a distance from Bottom 6 supported.

This lower table 3 is a fixed one Table, i.e. around a table 3 in its position remains, whereas the upper table 2 as a so-called Is designed, i.e. as can be seen from Fig.1, between an upper open and a lower one closed position by means of a still to be described Hydraulic devices 24 can be moved.

The tables 2, 3 are in the present exemplary embodiment designed in two pieces, i.e. both the lower and the upper table 2,3 each have two plates 7,8.

The individual plates 7, 8 are shown in FIG Breakthroughs 11 provided, in the present case Embodiment of each of the table tops 7, 8, as shown in Fig.5 and 7 can be seen, has five openings 11.

By means of these openings 11, the table tops 7, 8 precisely connected to each other by means of a plug connection are, these plug connections occurring transverse forces take up.

As can also be seen from FIGS. 1 and 2 and 5 and 6, the individual table tops 7, 8 each consist of one Steel existing top and bottom cover 12 a surrounding frame 13, also made of steel between the top and bottom cover 12 and from the encircling frame 13 framed honeycomb, in here present embodiment made of steel Reinforcement 14.

As shown in Fig.2a, there is a honeycomb Reinforcement 14 from individual so-called honeycomb rows 15, the are designed in two pieces, i.e. out of two each complementary honeycomb parts 16, 17 on their, each other facing webs 18 in contact with one another are welded together, as well as on the top and lower cover 12 of the individual table tops 7.8.

As can also be seen in FIGS. 1 and 2, the individual table tops 7,8 hydraulic cylinder mounts 19; 20 on, which are arranged in the tabletops 7,8, wherein, in here the present embodiment Hydraulic cylinder receptacles 19; 20, a table 2; 3 forming plates 7,8 are arranged offset to one another, i.e. in the present embodiment, as shown in Fig.2 and 9 can be seen, the hydraulic cylinder receptacles 19 of the upper and lower table top 7 of the upper and lower Tables 2, 3 at a smaller distance from the axis of symmetry 21 arranged as the, in the below, or above arranged table top 8 of the upper and lower table 2.3.

Like both the Fig. 1, 2 and 3 and in particular the Fig. 9 and 10, the other of the two has a table 2,3 forming plates 7,8 each, the Hydraulic cylinder holder 19.20 of the other plate 7.8 opposite opening or notch 22,23.

As can be seen in Fig. 9, the one is the one Hydraulic cylinder holder 20 in the corner area Plate 8 opposite plate 7 in its corner areas a notch 22 provided while the, the, the Hydraulic cylinder receptacle 19 at a closer distance to Axis 21 having plate 7 opposite Plate 8 in the area of, above or below Hydraulic cylinder receptacle 19 in the present one Embodiment designed largely rectangular Breakthroughs 23 has.

The press feet 5 are compatible with the Hydraulic cylinder receptacles 19, 20 designed so that the Press feet 5 in, in the lower plate 7,8 of the lower Tables 3 existing hydraulic cylinder mounts 19 or according to the second embodiment Hydraulic cylinder receptacles 20 can be positioned to to position the press 1 at a distance from the floor 6 or to support.

In a second embodiment according to Fig.3 and 4 and 10, the hydraulic devices 24 with the arranged at a smaller distance from the axis of symmetry 21 Hydraulic cylinder receptacles 19 in contact, i.e. the Hydraulic devices 24 are at a closer distance arranged to the axis of symmetry 21 as in the embodiment according to Fig.1 and 2 or Fig.9 in which the Hydraulic devices 24 with those in the corner areas arranged hydraulic cylinder receptacles 20 in Impact intervention.

According to the second embodiment, the upper plate 7 of the upper table 2 of the embodiment 1, acc. Fig.1, now the lower plate 7 of the upper table 2, the same applies to the other plate 8 or others Slabs 8 of the lower table 3, i.e. the orders of Plates 7,8 are changed to the extent that they are changed accordingly of the first embodiment acc. Fig.1 outside Plates 7 now delimit the pressure space 4. each other are arranged facing and the previously inside Plates 8 now form the outer plates 8.

Otherwise, the press 1 corresponds to the second Embodiment according. Fig. 3,4 and 10 the previously described structure of the first embodiment acc. Fig. 1,2 and 9, especially with regard to Design of the individual plates 7,8.

11, 11, 13 and 14 show in detail the arrangement of the Hydraulic device 24 corresponding to the first Embodiment according to Fig.1,2 and 9.

Fig. 11 shows the press 1 with its upper table 2 and lower table 3 in the open state, while Fig.12 the Press 1 shows in the closed state.

The hydraulic device 24 is to be explained in more detail with reference to FIG. 13 to be explained.

As already described above, the upper table 2 consists of an upper plate 7 and a lower table top 8 and the lower table 3 from an upper plate 8 and lower Plate 7.

In the present exemplary embodiment, the press according to the invention four hydraulic devices 24, which are arranged in the outer edge region of the tables 2, 3 i.e. each press 1 has four hydraulic devices 24.

The hydraulic devices 24, as shown in FIG. 13 see a pressure cylinder 25, which, in the direction of view Fig. 13 below the hydraulic cylinder holder 20 of the upper one Plate 8 of the lower table 3 to the upper plate 8 of the lower table 3, on the side facing away from the pressure chamber 4 Flanged side by means of conventional means 26.

The piston rod 27 has, as among other things from the Figures 1, 3, 11, 12 and 13 can be seen in the viewing direction Fig. 13 down, i.e. it is located when it is open Pressure chamber 4, as can be seen from Fig. 11, in the retracted position Position and with the pressure chamber 4 closed, as from FIG. 12 can be seen in the extended state.

The piston rod 27 has the pressure cylinder 25 on it a yoke 28 on the opposite end, over which two Guide rods 29 are coupled to the piston rod 27.

The guide rods 29 also serve Power transmission or redirection to the upper table or Lift table 2.

To do this, they penetrate the upper plate 8 of the lower table 3 by means of appropriately designed guide bores 30 arranged parallel to the hydraulic cylinder holder 19.20 or on the same level as the center line 31.

The ends of the guide rods 29 facing away from the yoke 28 penetrate guide holes 32 arranged in the lower Plate 8 of the upper table 2 and end at a distance from, the upper side 33 of the lower plate 8 facing away from the yoke 28 of the upper table 2.

The guide and power transmission rods 29 are on the lower plate 8 of the upper table 2 on both sides, i.e. both on the top 33 and on the bottom 34 of the lower plate 8 of the upper table set so that a vertical displacement of the guide rods 29 inevitably results in a shift of the upper table 2 Has.

In the position shown in Fig. 13 is the Piston rod 27 in a retracted position so that the pressure chamber 4 is in the open position.

Now there is a downward movement of the yoke 28, i.e. to an extension movement of the piston rod 27, so this results in the upper table 2 using the guide / power transmission rods 29 to one, looking in the direction Fig.13 causing downward movement in their end position is shown in Fig.12.

When the piston rod 27 moves in the opposite direction then there is an opening of the pressure chamber 4 in the position shown in Figs. 11 and 13, i.e. to a complete opening of the pressure chamber 4.

The yoke 27 moves in this, as shown in Fig. 13 Position in the area of the lower plate 7 of the lower Table 3, i.e. in the area of the notch 22.

The, shown in Fig.13 and the definition of Guide rods 29 on the lower plate 8 of the upper table 2 serving facilities, in the present one Embodiment nuts 10 are in the notch 22nd the upper plate 7 of the upper table 2 is arranged.

Through the press feet 5 shown in FIGS. 1 and 3 there is sufficient freedom of movement of the yoke 28 below the lower table 3.

As can be seen from FIGS. 1, 2, 3, 4, and 9, 10 and 11, 12, 13, are the hydraulic cylinder mounts 19.20 with a provided slot-like opening 36 which in its Width is designed such that corresponding Supply lines such as Hydraulic fluid connections 37 through these slots 36 to the impression cylinder 25 can be introduced and it is ensured that at Lower the upper table down to that in Fig.12 position shown, e.g. upper hydraulic connection 37 passed through the slot 36 without it Damage to the connection 37 comes.

The previously described configuration of the hydraulic device 24 also applies to embodiment 2, i.e. the Embodiment according to Figure 3, the difference only in the appropriate arrangement of the Hydraulic device 24 exists, i.e. in the lesser Distance to the axis of symmetry 21 of the press 1, such as the different arrangement of the table tops 7.8.

Here the yoke 28 does not move into the notches 22 in FIG lower plate 7 of the lower table 3, but rather, 3 and 10 in the largely rectangular designed openings 23 of the lower plate 8, the Nuts 10 for fixing the guide rods 29 in the area the largely rectangular openings 23 in the upper plate 8 of the upper table 2 are arranged.

The design of the press foot 5 is in detail illustrated by way of example in FIGS. 15, 16, 17 and 18, this foot 5, as in Figures 15, 16, 17, 18 in detail can be seen with an upper part 38 in the Hydraulic cylinder holder 19.20 can be arranged and then with usual means such as by screwing there is to be determined.

The press 1 according to the invention according to the first and second embodiment according to Fig.1 and 2 can in layers with presses 1,1a, 1b of the same type or different embodiments on top of each other can be arranged, only in the, here present embodiment according to FIG. 19 lower press, the rest of the embodiment shown in Figure 1 largely corresponds to press feet 5 are to be arranged.

With such a stratification individual according to the invention Presses 1.1a and 1b corresponds to the lower press 1 Embodiment according to Fig.1 and Fig.9.

The second press la to be arranged above corresponds to this Embodiment according to Fig.3 and Fig.10 and the on it following the embodiment of FIG. 1 or 9, i.e. it can lead to any stratification of Presses 1.1a, 1b according to the invention come, each of which alternating between the two previously described exemplary embodiments are placed on top of each other and, as already explained, only in the lower press 1 the press feet 5 for Get involved.

In a further embodiment, shown in Fig. 19 However, it is also possible to use a press 1 according to the Embodiment according to Fig.1 or 9, looking in the direction Fig.19 to arrange as the lower press 1, with the upper Plate 7 of the upper table 2 and at it subsequent second press la according to the Embodiment according to Fig.3 or Fig.10 on the lower Plate 7 of the lower table 3 is dispensed with entirely.

In the subsequent press, i.e. the press 1b is concerned turn around a press 1 corresponding to the first Embodiment according to Figures 1 and 9, then again the lower plate 7 of the lower table 3 can be dispensed with can.

In accordance with the exemplary embodiment Fig. 19 thus replaced the upper plate 7,8 of the lower table 3 of the upper one Press lb; la the top plate 7; 8 of the top table 2 of the press 1a; 1 arranged underneath.

It is of course conceivable for the lower press 1 or the presses 1, 1a, 1b generally other press feet 5 to be provided or also completely on the press feet waive and instead e.g. corresponding recesses to be provided in the floor 6 in order to provide the necessary freedom of movement to ensure the yoke 28.

It is also conceivable that the tables 7, 8 are not to design in two parts, but rather in one piece and the necessary recesses 22 and openings 23 not over the entire material thickness of the table 2.3 to be provided, but e.g. only over half the height and the other half of the table 2, 3 with the corresponding ones Hydraulic cylinder holders 19.20 to be provided.

With such a design of the tables can then Complete on the openings 11 for positioning the plates 7,8 and absorption of shear forces.

In addition, it is expressly pointed out here that the hydraulic devices 24, corresponding to the Embodiment according to Fig.19 different presses 1,1a, 1b are not supplied by a common unit, but rather from separate units, i.e. it deals with the presses 1,1a, 1b one above the other layered presses 1,1a, 1b, which correspond to FIG. 19 have only been mechanically coupled, i.e. around to achieve a defined positioning in relation to each other and to minimize the overall height without this leading to a common Control of the individual hydraulic devices 24 leads or includes functioning only in a coupled version.

In the case of the individual presses 1, 1a, 1b corresponding to one possible stratification acc. Fig. 19 can, if necessary, as above set out on the facing plates 7,8; 8,7 of tables 2.3, 3.2 facing each other directly stacked presses 1,1a, 1b are dispensed with, this is due to the function of the individual presses 1,1a, 1b nothing changes, i.e. that only the upper table 2 is designed as a lifting table.

Claims (26)

1. A press, especially to press plate-shaped workpieces with at least one pressure chamber (4) with at least two tables (2, 3) bordering the pressure chamber (4), whereby at least one of the tables (2, 3) is designed as a fixed table (3) and at least one of the tables (2, 3) is designed as an elevating table (2), and at least one has a device (24) that applies pressure to the pressure chamber (4), with a device (11) to couple at least one other press (1a, 1b) above it and/or below it, whereby the device (11) positions the presses (1, 1a, 1b) to be coupled and absorbs shearing forces, characterized in that the device (11) has at least one penetration (11) that receives a insertion means and is in at least one table (2, 3) and penetrates it at least partially.
2. The press according to claim 1, characterized in that the penetration (11) completely penetrates the table (2, 3).
3. The press according to claim 1 or 2, characterized in that the device (11) has five penetrations (11).
4. The press according to one of claims 1 - 3, characterized in that at least the tables (2, 3) neighboring the pressure chamber (4) have at least one penetration (11).
5. The press according to one of claims 1 - 4, characterized in that the penetrations (11) are designed as holes (11), and that the insertion means are bolts that tightly fit the holes (11).
6. The press according to one of claims 1 - 5, characterized in that the table (2, 3) consists of several pieces.
7. The press according to claim 6, characterized in that the table (2, 3) consists of two pieces.
8. The press according to claim 6 or 7, characterized in that the table (2, 3) has two leaves (7, 8), one of which is above the other.
9. The press according to one of claims 1 - 8, characterized in that the table leaves (7, 8) of a table (2, 3) are designed to supplement each other.
10. The press according to one of claims 1 - 9, characterized in that the facing table leaves (7, 7; 8, 8) of the tables (2, 3) neighboring the pressure chamber (4) have the same design, and the table leaves (8, 8; 7, 7) facing away from each other of the tables (2, 3) neighboring the pressure chamber (4) also have the same design.
11. The press according to one of claims 1 - 10, characterized in that the individual table leaves (7, 8) forming the tables (2, 3) can neighbor the pressure chamber (4) and face away from the pressure chamber and form the table (2, 3).
12. The press according to one of claims 1 - 11, characterized in that the table leaves (7, 8) are hollow with internal reinforcement ribs (14).
13. The press according to claim 12, characterized in that the reinforcement ribs (14) have a honeycomb design.
14. The press according to claim 13, characterized in that the honeycomb reinforcement ribs (14) are at least partially welded together at contacting bars (18).
15. The press according to one of claims 1 - 14, characterized in that there are four devices (25, 27, 28, 29) that apply pressure to the pressure chamber (4).
16. The press according to one of claims 1 - 15, characterized in that the devices (25, 27, 28, 29) have guide rods and/or tie rods (29), and the guide rods and/or tie rods (29) guide the elevation table (2) and are interactively connected to it.
17. The press according to one of claims 1 - 16, characterized in that the fixed table (3) has guides (30) that guide the guide rods and/or tie rods (29).
18. The press according to one of claims 1 - 17, characterized in that the device (25, 27, 28, 29) has a pressure cylinder (25), that the pressure cylinder (25) interacts via a connecting rod (27) with the guide rods and/or tie rods (29), and that the pressure cylinder (25) is fixed on or in the fixed table (3) to the connecting rod (27) facing away from the elevation table (2).
19. The press according to one of claims 1 - 18, characterized in that side of the elevating table (2) facing the pressure cylinder (25) has an opening (19, 20) coaxial to the pressure cylinder that receives the pressure cylinder (25).
20. The press according to one of claims 1 - 19, characterized in that the opening (19, 20) has a hole (19, 20) that penetrates at least the table leaf (7, 8) of the elevating table (2) neighboring the pressure chamber (4).
21. The press according to one of claims 1 - 20, characterized in- that the area of the second table leaf (7, 8) neighboring the hole (19, 20) and forming the table (2) has a notch (22, 23).
22. The press according to one of claims 1 .- 21, characterized in that the hole (19, 20) has a slot (36) that extends the entire height of the hole.
23. The press according to one of claims 1 - 22, characterized in that the table leaf (7, 8) has four holes (19, 20) serving to receive a pressure cylinder (25).
24. The press according to one of claims 1 - 23, characterized in that the holes (19, 20) of the table leaf (7, 8) are offset to the holes (20, 19) of the other table leaf (7, 8) forming the table (2, 3).
25. The press according to one of claims 1 - 24, characterized in that the table leaf (7, 8) has four notches (22, 23) to attach the connecting or tie rods (29) and allow them to move together with the multipart unit.
26. The press according to one of claims 1 - 25, characterized in that the notches (22, 23) of the table leaf (7, 8) are offset to the notches of the other table leaf (7, 8) forming the table (2, 3).

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