EP1405704A2 - Process and device for producing stones - Google Patents

Abstract

To produce shaped bricks, especially of concrete, a lower mold (3) is fixed to a production underlay (5), with a mold frame (9) and openings (6) to be filled with material (11). The lower mold section acts with an upper mold section (4), comprising a pressure loading unit (12) with plungers (14) to compress the material in the X-direction within the lower mold openings. The upper mold also has supports (16) with at least one slide (19).

Description

The invention relates to a method according to the preamble of claim 1 and a device for performing the Method according to the preamble of claim 9.

The filling of the individual recesses or chambers of the Lower part of a device for the production of Shaped stones are made with a so-called filling car, which the filling material e.g. Concrete spread over the chambers. in this connection is an even filling of the chambers with the Filling material does not guarantee 100%. this leads to partly to overfill or underfill the Chambers. The filling process is followed by the compression process. at this process, the filling material is in the Vibrating table on which the lower mold part rests Vibrating energy and by applied by the stamps Compressed energy in a short time. The compression is partly so strongly influenced by the shaking that the Height of the filling material in a chamber below the lowest Level of the stamp plate of the associated stamp in its lowest position drops. This creates a molded body which is an undesirable undersize in terms of height having. This is particularly disadvantageous for shaped stones, which are produced without refilling material, because Waste or a lower quality is produced. Self in the case of shaped stones which are replaced by one or more Refilling with multiple layers is one uniform height of those produced with the first layer Layer desirable to be highly accurate from the start to produce. So far, a manufacturing process for in the Height of highly precise moldings only for multi-layer moldings known from DE 195 37 077 A1, the required Device is technically complex.

The object of the invention is a method and Propose device which with which simple Means the production of single and multi-layer Form stones allowed, in which the deviations in height of the shaped stones minimal and inaccuracies of the shaped support or the vibrating table with no effect on the shape of the stone stay.

This object is achieved by the method defined in claim 1 and the device defined in claim 9 solved. In the Subclaims are advantageous and expedient Further training specified.

The method according to the invention provides in a first Step the material by a first movement of the Compress the load over a first travel path, which in the x direction, in a second step it is provided by a second movement of the load over a second travel path in the x direction is another Bring about compression of the material, the Traversing movements without a counter-traversing movement immediately be carried out in succession and by at least each a stop can be limited, the respective stop after completion of the first movement into at least one further position is adjusted and the parameters Vibration and pressure on the first and second travel act on the shaped stones in different strengths. This makes it possible to maintain short cycle times To produce moldings, which with optimal compression regarding their height in a very small tolerance interval lie. This is done directly by two, i.e. without reversing or stroke movement of successive compaction processes achieved by different parameters Marked are. In a first compression step, the conventional one, optimized for a short cycle time Parameters are carried out, which may be over-compressing effect, there follows a second compression step in Welchem the focus is on the precise compaction of the shaped blocks and determines the choice of parameters. The travels be for the load by at least one stop given the position is adjustable and as Stop for a limit to the first movement End position and for a second movement limiting end position. Such a flexible or adjustable stop allows two to be passed quickly successive travels and is technically simple and therefore robust and suitable for everyday use executable. Parameters or compression parameters in the sense This invention is that applied to the molded block Pressure and the frequency and strength with which Vibrations on the production base or the vibrating table Act.

According to the invention it is also provided during the second movement continuously stops the stop further position to adjust. This makes it possible The load drops over entire sections of the travel path to control or limit and so an unwanted to prevent rapid or deep sinking.

Alternatively, the invention provides for the stop before the start the second movement to an end position adjust. This allows the parameters pressure and Vibration strength on the second travel path freely on the material act.

Furthermore, the invention provides for the stop by means of at least one hydraulic or pneumatic cylinder from the first position to another position adjust. This allows a simple structure of the Device because the cylinder attached to the on the device basically existing hydraulics or pneumatics can be connected and thus also via the existing one Machine control can be operated.

According to the invention, the first compression path (V ₁ ) is designed to be larger than the second compression path (V ₂ ). This design allows fast cycle times because the travel speed on the first compression path, which has a greater impact on the overall compression time, is greater than on the second compression path, since more energy is introduced per unit of time or because the material to be compressed does not yet compress as high in this processing step is. In particular, the first compression path is approximately three to six times as large as the second compression path.

The invention provides for compression at first Compaction path through a path introduced into the molding table Shaking movement and by pressure applied by the load to effect. This leads to rapid progress in the Compression on the first path.

The invention further provides for the second travel path the compression solely by means of the ballast To cause pressure. With such a compression no risk of over-compression.

Alternatively, the invention proposes the compression on the second travel path through one introduced into the vibrating table Shaking motion and one by the weight of the load effected pressure, the load with the Material sinks to the end stop. Even with one such moderate compression there is almost no danger the over-compression.

The device according to the invention provides that at least a stop to limit the travel of the load during the manufacture of the shaped stones from a first Position adjustable to at least one other position shape. This allows the compression process to begin simple way in two path-dependent compression steps divide.

The invention provides that the load in everyone Support stop position on the vibrating table. This is it ensures that the mold frame is not skewed negative impact on the position of the ballast and thus on the height of the stones to be produced.

By arranging the adjustable stop on Mold top is this from contamination by the to processing material protected and can be optimally the supply and control lines of the machine control connect.

Finally, the invention overlooks two supports each to control a common slide and especially for the control of four supports arranged on the ballast insert two parallel sliders and over them to move a common drive. This is one synchronous adjustment of the stop surfaces to the simplest Way possible.

According to the invention, each support is provided with a to provide an underside of the support arranged nozzle, which is supplied with compressed air, and the pressure in which the Measure lines supplying nozzles. This makes it with simple means possible to put all supports on Lowering the upper part of the mold via an increase in pressure monitor and capture and so a reliable signal for changing the stop position.

Furthermore, the invention provides for the support in its To form the foot area as a nozzle plate in which the nozzle is arranged. This enables easy maintenance, because the nozzle plate has small dimensions and is simple can be dismantled.

It is particularly advantageous if the compressed air of the nozzle is fed through a hole arranged in the support. Such a feed is special against damage insensitive.

An embodiment variant of the invention provides that To provide slide with a through hole, which in the first stop position of the slide with the hole in the prop is in alignment. In this way, a supply of the Support with compressed air possible without this in their Freedom of movement thanks to a permanently attached to it Supply line is disabled.

It is also advantageous to support the compressed air supply or control nozzle by the position of the slide. This is a particularly simple and robust structure of the Molded top possible.

According to the invention it is also provided that the nozzle Form cleaning nozzle. This allows you to face the nozzle the area in which the support is placed touches down, cleansed and thus miscontrolled To avoid contamination.

Finally, it is provided that the supports (16) Proximity switches must be provided, which determine the position of the supports to capture. Such a surveillance system can be used as additional system are used to do this with compressed air monitor working system.

Further details of the invention are shown in the drawings based on schematically illustrated embodiments described.

Figur 1a:

eine Form zur Herstellung von Formsteinen in schematischer Darstellung, wobei sich das Formoberteil in einer Stellung FO₁ und das Formunterteil in einer Stellung FU₁ befindet,

Figur 1b, 1c:

ein Detail des Formoberteils aus Figur 1a in unterschiedlichen Vergrößerungsstufen,

Figur 2a:

die aus der Figur 1a bekannte Form, wobei sich das Formoberteil in einer Stellung FO₂ und das Formunterteil in der Stellung FU₁ befindet,

Figur 2b - 2e:

ein Detail des Formoberteils aus Figur 2a in unterschiedlichen Stellungen,

Figur 3a:

die aus der Figur 1a bekannte Form, wobei sich das Formoberteil in einer Stellung FO₃ und das Formunterteil in der Stellung FU₁ befindet,

Figur 3b

ein Detail des Formoberteils aus Figur 3a,

Figur 4a:

die aus der Figur 1a bekannte Form, wobei sich das Formoberteil in der Stellung FO₃ und das Formunterteil in einer Stellung FU₂ befindet,

Figur 4b, 4c:

ein Detail des Formoberteils aus Figur 4a in unterschiedlichen Vergrößerungsstufen,

Figur 5a:

die aus der Figur 1a bekannte Form, wobei sich das Formoberteil in einer Stellung FO₄ und das Formunterteil in einer Stellung FU₃ befindet,

Figur 5b:

ein Detail des Formoberteils aus Figur 5a,

Figur 6a:

die aus der Figur 1a bekannte Form, wobei sich das Formoberteil wieder in der Stellung FO₁ und das Formunterteil wieder in der Stellung FU₁ befindet,

Figur 6b:

ein Detail des Formoberteils aus Figur 6a,

Figur 7:

eine schematische Darstellung einer Steuerungsanordnung für das Formoberteil,

Figur 8a:

einen Schnitt im Bereich einer mit Druckluft versorgten Stütze,

Figur 8b:

eine Ansicht der Stütze aus einer in Figur 8a dargestellten Pfeilrichtung VIIIb,

Figur 8c:

einen weiteren Schnitt im Bereich der mit Druckluft versorgten Stütze,

Figur 8d:

eine Draufsicht auf Figur 8c,

Figur 9a:

einen Schnitt durch einen Fußbereich einer Stütze und

Figur 9b:

einen Schnitt durch einen Fußbereich einer weiteren Stütze.

Here shows:

Figure 1a:

a mold for the production of molded blocks in a schematic representation, wherein the upper mold part is in a position FO ₁ and the lower mold part in a position FU ₁ ,

Figure 1b, 1c:

2 shows a detail of the molded upper part from FIG. 1a in different magnification levels,

Figure 2a:

the form known from FIG. 1a, the upper part of the mold being in a position FO ₂ and the lower part in a position FU ₁ ,

Figure 2b - 2e:

3 shows a detail of the molded upper part from FIG. 2a in different positions,

Figure 3a:

the shape known from FIG. 1a, the upper mold part being in a position FO ₃ and the lower mold part in the position FU ₁ ,

Figure 3b

4 shows a detail of the upper part from FIG. 3a,

Figure 4a:

the form known from FIG. 1a, the upper mold part being in the FO ₃ position and the lower mold part in a FU ₂ position,

Figure 4b, 4c:

4 a detail of the molded upper part from FIG. 4 a in different magnification levels,

Figure 5a:

the form known from FIG. 1a, the upper mold part being in a position FO ₄ and the lower mold part in a position FU ₃ ,

Figure 5b:

4 shows a detail of the molded upper part from FIG. 5a,

Figure 6a:

the form known from FIG. 1a, the upper part of the mold again being in the position FO ₁ and the lower part again in the position FU ₁ ,

Figure 6b:

6 a detail of the molded upper part from FIG. 6a,

Figure 7:

1 shows a schematic illustration of a control arrangement for the upper part of the mold,

Figure 8a:

a section in the area of a prop supplied with compressed air,

Figure 8b:

6 shows a view of the support from an arrow direction VIIIb shown in FIG. 8a,

Figure 8c:

another cut in the area of the prop supplied with compressed air,

Figure 8d:

a plan view of Figure 8c,

Figure 9a:

a section through a foot portion of a prop and

Figure 9b:

a section through a foot area of another prop.

Figure 1a shows a schematic representation of a mold 1 for the production of molded blocks 2 (see Figure 4a). The mold 1 consists of a lower mold part 3 and an upper mold part 4. The lower mold part 3 rests on a production base 5 or a board and has mold chambers 6 which are open in directions x and x '. The mold chambers 6 are filled with the aid of a filling car 7, which is first pushed over the mold chambers 6 from a waiting position in the y direction and is then pushed back into its waiting position in the y ′ direction. To the side of the mold chambers 6, four counter supports 8 are arranged in the lower mold part 3 (only two of the four counter supports are visible in FIG. 1 a), which are vibration-isolated from the mold frame 9. The production base 5 is arranged on supports 10, via which vibrations are introduced onto the production base 5 or the lower mold part 3 and the material 11 located therein. The upper mold part 4 is also referred to as a load 12 with a load plate 13 which carries stamp 14. From an upper position FO _{1 of} the upper mold part 4 shown in FIG. 1a, the upper mold part 4 can be moved in the direction of the arrow x and is aligned with the lower mold part 3, which is in a lower position FU ₁ in FIG Mold chambers 6 are. Furthermore, four supports 16 are slidably mounted in four guides 15 arranged on the load plate 13, the supports 16 being in a lower position ST ₁ (see FIG. ₁ b) and being aligned with the four counter supports 8. At a head end 17, the supports 16 have plates 18 which prevent the supports 16 from slipping out of the guides 15 in the direction of the arrow x. The supports 16 are prevented from moving in the direction of the arrow x 'by a slide 19 which is guided on the upper part of the mold and from a first stop position AS ₁ shown in FIG. 1a, in which this forms a stop A ₁ , in the direction of the arrow y into a further stop position AS ₂ (see Figure 2e), in which it forms a stop A ₂ , and a third position AS ₃ (see Figures 4a, 4b), in which it forms a passage A ₃ , is displaceable. The slide 19 is actuated via two coupled cylinders 20, 21, the cylinder 20 being fastened on the slide 19 and the cylinder 21 being mounted on the load plate 13.

FIGS. 1b and 1c show a detail of the upper mold part 4 again in different magnification levels shown.

FIG. 2a shows the upper mold part 4 in a position FO ₂ , which is achieved by moving the upper mold part 4 from the position FO ₁ shown in FIG. 1a in the direction of the arrow x. In this position, the supports 16 remain unchanged in the position ST ₁ relative to the upper mold part 4 or the punches 14. When the upper mold part 4 is moved into the FO ₂ position, the material 11 in the mold chambers 6 is compressed by a first compression path V ₁ pressure energy applied by the load 12 and vibratory energy introduced via the manufacturing base 5. The ballast 12 is arranged via a clutch 22 on a hydraulic press, not shown, so that the ballast 12 acts on the first travel path W ₁ (FO ₁ to FO ₂ ) with its weight and with the pressure force of the hydraulic press. In the position shown in FIG. 2a, the supports 16 rest on the counter supports 8 with free ends 23. This prevents further movement of the upper mold part 4 in the direction of the arrow x via the slide 19 serving as a stop. The compression path V ₁ coincides with a second part of the travel path W ₁ , the compression path V ₁ being defined as the distance that the stamp 14 travels within the molding chamber 6 when the upper mold part 4 moves from the position FO ₁ to the position FO ₂ decreases.

In Figure 2b, which is known from the figures 1b and 1c first stop position AS ₁ again shows the support 16 on the slide 19, in which it forms the stop for the support ₁ A sixteenth FIGS. 2b to 2e show step by step the displacement of the slide 19 from the first stop position AS ₁ (FIG. 2b) to the second stop position AS ₂ (FIG. 2e), intermediate positions being shown in FIGS. 2c and 2d, via which the slide 19 moved along the plate 18 of the support 16 with a bevel 24. In the stop position AS ₁ , the surface F _{1 forms} the stop A ₁ for the support 16. In the stop position AS ₂ , the surface F _{2 forms} the stop A ₂ for the support 16. The on the slide 19 between the stop surfaces A ₁ and A ₂ Trained bevel 24 forms a plurality of further intermediate stops ZA ₁ to ZA _N for the support 16 or its plate 18, the intermediate stop ZA _{1 is} shown as an example, which is generated by a position AS _{VT of} the slide 19. These make it possible to subdivide the compression path V ₂ into any number of partial compression paths VT ₁ to VT _N (the partial compression path VT _{1 is} shown as an example), which allow a gradual or continuous decrease in the load to the level FO ₃ . If the support 16 bears against the stop A ₂ , then it is in a middle position ST ₂ . The lower position ST ₁ and the middle position ST ₂ or the stop 1 and the stop 2 are at a distance from one another which corresponds to or defines the travel path W ₂ or the compression path V ₂ .

The change from the stop A ₁ to the stop A ₂ or the displacement of the slide 19 from the first to the second stop position allows the ballast 12 to sink in the direction of the arrow x into the mold chambers 6 by the distance between the stops A ₁ and A ₂ , After subsidence the ballast 12 has reached the position shown in Figure 3a FO ₃ and another traverse W x traveled in the direction _2, wherein the path of a compression path W ₂ V ₂ corresponds.

Figure 3b corresponds to Figure 2e.

During the process via the storage path W ₂ , the material 11 is compressed either solely by the weight of the load or by the weight of the load and a pressure exerted on the load by the press, or by the weight of the load and a shaking movement of the lower part.

FIG. 4a shows the demolding of the shaped blocks 2. For this purpose, the slide 19 is pushed into the through position AS ₃ . In this position, the support 16 with the plate 18 can pass through the slide 19 in the arrow direction x '. This forms the passage A _{3 here} . This allows pulling the lower mold part 3 towards the upper mold part 4, which is still in the position FO ₃ . When pulling the lower mold part 3, the shaped blocks 2 are pushed out of the mold chambers 6 by the punches 14 or retained on the production base 5. The lower mold part 3 is in a raised position FU ₂ . The supports 16 are pushed from the lower mold part 3 through the guides 15 and the passages A ₃ (see FIG. 4b) into an upper position ST ₃ .

FIGS. 4b and 4c show the slide 19 standing in the position AS ₃ , in which it forms the passage A ₃ for the support 16.

In FIG. 5a, the lower mold part 3 and the upper mold part 4 are moved further in the direction of the arrow x 'in order to release the shaped blocks 2 completely. The molded parts 3, 4 are in positions FO ₄ and FU ₃ .

Figure 5b shows in detail the guide 15 almost fully pushed support 16.

FIG. 6a shows the molded parts 3, 4 again in the basic position (FO ₁ , FU ₁ ) already known from FIG. 1a. The support 16 and the slide 19 are again in the stop position AS ₁ .

A control arrangement 25 is schematically shown in FIG Control of the movement of the upper mold part 4 shown. The Controller 25 consists essentially of a pressure accumulator 26, which via a distributor 27 on the upper mold part 4 supported supports 16 (only one support is shown here) supplied with compressed air, the compressed air via lines L through the slide 19 into a support 16 passing through Bore 28 flows and out of this on an underside 29 a nozzle 30 emerges (see also FIG. 8a). Between the nozzle 30 and the manifold 27 are in each line L Pressure gauges 31a to 31d arranged, which the pressure in detect the lines L and send them to a control unit 32 pass on, which in turn with the entire machine controlling controller 33 is connected. The controller 33 also controls a pneumatic switching device 34, which the Actuates cylinder 20, which moves the slide 19 causes. Furthermore, it is provided to the controller 33 electrical lines E not shown here Connect proximity switches, which on the supports 16 are arranged and their position to the lower mold part monitor.

In Figure 8a is a section through the upper mold part 4 in Area of one of the supports 16 shown. In the slide 19 is a through hole 35 is arranged to which the Compressed air line L is connected. Through the Through hole 35, the compressed air in the hole 28th initiated which the support 16 from the head end 17 where the Support is designed as a plate 18 to a foot end 36 passes through, where the support 16 has a nozzle plate 37. The nozzle 30 opens towards the underside 29 of the support 16. When placing the support 16 on the counter support 8 (see Figure 2a) is also created by closing the nozzle 30 with the counter support 8 in the compressed air line L. Back pressure, which is detected by the pressure measuring device 31d and on control unit 32 is reported (see also FIG. 7). If reaching everyone's specified back pressure value Pressure measuring devices is reported, then the control unit directs 32 forward corresponding information to the controller 33, which then via the valve 38 (see Figure 7) Compressed air supply switches off and via the pneumatic Switching device 34 the cylinder 20 to a method of Slider 19 causes the following Initiate compression step.

FIG. 8b shows a top view of the underside 29 of FIG Support 16 shown. This shows an annular one Nozzle opening 39. The nozzle plate 37 is in the support 16 screwed in (see also Figure 8a).

FIG. 8c shows a further section through the upper mold part 4 in the area of the support 16. In this view it can be seen how the slide 19 is guided by means of two steel plates 40, 41 with an L-shaped cross section, which are firmly screwed to the upper mold part 4. FIG. 8d shows a top view of FIG. 8c, the compressed air hose L being shown rotated by 90 °. Furthermore, the passage A ₃ can be seen in the slide 19, through which the support can pass through the slide 19 when the upper mold part 4 and the lower mold part are lifted.

With a compressed air supply as shown in Figures 7 to 8d is shown the compressed air supply to the support or Nozzle interrupted as soon as the slide 19 out of the in Figures 7 to 8d position is moved.

In FIGS. 9a and 9b, embodiment variants of Supports 16 shown, in which the compressed air is not the support 16 is supplied, but laterally over Connection couplings K brought up to a nozzle plate 37 becomes. In the embodiment variant according to FIG Nozzle plate 37 opposite the support 16 by plate springs 42 spring-mounted, so that between the support 16 and the Nozzle plate 37 when placing the nozzle plate 37 on the Counter support, not shown, a relative movement possible is in which the nozzle plate 37 in the support 16th compressed. A proximity switch 43 is on the support 16 arranged, which cooperates with a flange 44, the communicates with the nozzle plate 37. When putting on the nozzle plate 37 on the counter support approaches Flange 44 the proximity switch 43 until the plate springs 42 are fully compressed and no more Relative movement between the support 16 and the nozzle plate or the flange 44 is more possible. When using Proximity switches are provided by the invention, the nozzle 30 to use only as a cleaning nozzle 45 and on a Dispense with the detection of the dynamic pressure. Alternatively it is however provided the position of the upper mold part or the Compaction with the help of the proximity switch 43 and with the help of the dynamic pressure. As a result, there are redundant Monitoring systems that provide high process reliability allow.

According to an embodiment variant, not shown, it is provided that the lower mold part instead of the counter supports has cylindrical through openings through which the Support the upper mold part through the lower mold part can be lowered down to the production document. At this Design variant becomes the measure for determining the position of the upper part directly from the production document removed, which is also a side of the to be manufactured Shaped body defined.

The invention is not shown or described on Embodiments limited. Rather, it includes Developments of the invention in the context of Patent claims. In particular, the invention also sees before, the individual stops for the supports as rotatable to form cams attached to the load. Here it is in particular also provided two opposite supports to connect assigned cams by a shaft, via which the cams are driven or adjusted.

LIST OF REFERENCE NUMBERS

1

shape

2

cast stone

3

Mold part

4

Mold top

5

Production document, board, vibrating table

6

Molding chamber, recess

7

charging car

8th

countersupport

9

mold frame

10

In stock

11

material

12

ballasted

13

load plate

14

stamp

15

guide

16

support

17

head

18

Plate

19

pusher

20

cylinder

21

cylinder

22

clutch

23

free end

24

slope

25

control arrangement

26

accumulator

27

distributor

28

Hole in 16

29

Bottom of 16

30

Nozzle on 16

31a-31d

pressure monitor

32

control unit

33

control

34

pneumatic switching device

35

Through hole in 19th

36

Foot of 16

37

nozzle plate

38

Valve

39

nozzle opening

40, 41

steel plate

42

Belleville spring

43

proximity switch

44

Flange to 37

45

cleaning nozzle

FO ₁ - FO ₄

1st to 4th position of the upper mold part 4

FU ₁ - FU ₃

1st to 3rd position of the lower mold part 3

W ₁

first travel path

V ₁

first compression route

W ₂

second travel path

V ₂

second compression route

AS ₁

first stop position of the slide 19

AS ₂

second stop position of the slide 19

AS ₃

third stop position of the slide 19

A ₁ , A ₂

1st, 2nd stop

A ₃

passage

ST ₁

lower position of the supports 16

ST ₂

middle position of the supports 16

ST ₃

upper position of the supports 16

F ₁ , F ₂

Stop faces on 19th

AS _VT

Intermediate stop position of the slide 19

ZA ₁

intermediate stop

VT ₁

Teilverdichtungsweg

L

Compressed air line

e

electrical line

K

connection coupling

Claims (22)

Method for producing molded blocks (2), in particular concrete blocks, in which a molded lower part (3) fastened to a production base (5) has a molded frame (9) with recesses (6) which are filled with material (11), the molded lower part (3) interacts with an upper mold part (4), which essentially consists of a ballast (12), which has stamps (14) which plunge into the recesses (6) in the x direction to compress the material (11),
compression of the material (11) by means of vibration and / or pressure,
a first compression of the material (11) by a first movement of the load (12) over a first compression path (V ₁ ) in the x direction,
wherein a further compression of the material (11) takes place via a second travel movement of the load (12) via a second compression path (V ₂ ) in the x direction,
the second movement immediately following the first movement,
wherein vibration and / or pressure of different strength and / or composition act on the material (11) on the first and the second compression path (V ₁ , V ₂ ),
wherein the travel paths or compression paths (V ₁ , V ₂ ) are each limited by at least one stop (A ₁ , A ₂ ) and
the stop (19) being displaced from a first position (AS ₁ ) to at least one further position (AS _VT , AS ₂ ) after completion of the first traversing movement of the load (12) and there at least one further stop (ZA ₁ , A ₂ ) forms. A method according to claim 1, characterized in that during the second movement, the stop (19) is continuously adjusted to a further position (AS _VT , AS ₂ ) in which this stop forms (ZA ₁ , A ₂ ). Method according to one of the preceding claims, characterized in that the stop (19) is moved into an end position (AS ₂ ) before the start of the second movement movement, in which it forms an end stop (A ₂ ). Method according to one of the preceding claims, characterized in that the stop (19) is adjusted by means of at least one hydraulic or pneumatic cylinder (20, 21) from the first position (AS ₁ ) to at least one further position (AS _VT , AS ₂ ) , in which this further forms stop surfaces (ZA ₁ , A ₂ ). Method according to one of the preceding claims, characterized in that the first compression path (V ₁ ) is greater than the second compression path (V ₂ ). Method according to one of the preceding claims, characterized in that the compression on the first travel path (W ₁ ) or compression path (V ₁ ) is brought about by a shaking movement introduced into the production base (5) and by pressure applied via the load (12) , Method according to one of the preceding claims, characterized in that the compression on the second travel path (W ₂ ) or compression path (V ₂ ) is carried out by pressure applied via the load (12). Method according to one of the preceding claims, characterized in that the compression on the second travel path (W ₂ ) or compression path (V ₂ ) was brought about by a vibrating movement introduced into the vibrating table (5) and by the weight of the load (12) alone Pressure occurs,
the load (12) with the material (11) sinking onto the end stop (A ₂ ). Device for carrying out the method according to one of Claims 1 to 8, characterized in that the at least one stop (19) can be adjusted from a first position (AS ₁ ) to at least one further position (AS ₂ ) during the production of the shaped blocks (2) is. Apparatus according to claim 9, characterized in that the load (12) in its end positions (FO ₂ , FO ₃ ) is supported on the vibrating table (5). Device according to one of the preceding claims 9 to 10, characterized in that the adjustable stop (19) is arranged on the upper mold part (4), in particular on the load plate (13). Device according to one of the preceding claims 9 to 11, characterized in that the stop (19) is designed as a slide (19) and the stop surfaces (A ₁ , ZA ₁ , A ₂ ) by different contact surfaces (F ₁ , 24, F ₂ ) of the slide (19) are formed. Device according to one of the preceding claims 9 to 12, characterized in that the slide (19) is displaceable by at least one preferably pneumatic and / or hydraulic cylinder (20, 21). Device according to one of the preceding claims 9 to 13, characterized in that two sliders (19) arranged parallel to one another are used to control four supports (16), which are driven in particular by a common drive (20, 21) Device according to one of the preceding claims 9 to 14, characterized in that each support (16) is assigned a pressure measuring device (31a, 31b, 31c, 31d) which detects the dynamic pressure which is generated when the support (16) is placed on the counter support ( 8) is formed in a line (L) which leads compressed air to a nozzle (30) arranged on an underside (29) of the support (16). Device according to one of the preceding claims 9 to 15, characterized in that the support (16) in a foot region (36) is formed by a nozzle plate (37) in which the nozzle (30) is arranged. Device according to one of the preceding claims 9 to 16, characterized in that the compressed air is fed to the nozzle (30) through a bore (28) arranged in the support (16). Device according to one of the preceding claims 9 to 17, characterized in that the slide (19) has a through bore (35) which in the first stop position (AS ₁ ) of the slide (19) with the bore (28) of the support (16 ) flees. Device according to one of the preceding claims 9 to 18, characterized in that the compressed air supply to the support (16) or nozzle (30) is controlled by the position (AS ₁ , AS ₂ , AS ₃ ) of the slide (19). Device according to one of the preceding claims 9 to 19, characterized in that the nozzle (30) is designed as a cleaning nozzle (45) in order to clean the counter support (8) before being placed thereon. Device according to one of the preceding claims 9 to 20, characterized in that the supports (16) are assigned proximity switches (43) which detect the placement of the supports (16) on the counter supports (8). Device according to one of the preceding claims 9 to 21, characterized in that the upper mold part (4) with the supports (16) is supported directly on the production base (5).

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