EP3718719A1 - Plate production facility with height adjustable dosing device - Google Patents

Abstract

Plate production system (100) for producing plates with a press mold to which a material to be pressed can be fed and with a dosing device (1) which feeds the material to be pressed to the pressing mold in a metered manner, the dosing device (1) being arranged above this pressing mold and wherein the dosator device (1) is arranged on a carrier and this carrier enables the dosator device to be moved in a height direction (h) and the dosator device to be pivoted in a predetermined pivoting direction. According to the invention, the carrier device has a lifting column (2) that can be moved in the vertical direction, as well as a first drive device (6) which is used to move the lifting column (2) in the vertical direction and at least one sealing device (13, 9, 12) for sealing components the carrier device in relation to an environment.

Description

The present invention relates to a plate production system. Such plate production systems are known from the prior art. Systems of this type usually have several work units which, in particular, carry out work steps for the production of panels one after the other. Devices can be provided that press the corresponding plates, devices that eject the pressed plates and also dosing devices that feed the material to be pressed into a press mold.

Such dosing devices are often used in plate production systems such as hermetic presses. Slab production systems are generally used to manufacture stones, concrete slabs, in particular terrazzo and cast stone slabs, paving stones, for example in hermetic quality, terrace and pavement slabs, as well as single-layer and two-layer slabs, also with combined filters and hermetic pressing processes, in a continuous production process.

It is known from the prior art that such hermetic press systems are arranged on a rotary table, as will be explained in more detail below. A dosing device is used to dose the concrete slab material to be pressed in the correct portioning. Dosing devices used in the prior art are, for example, dosing disc dosers and hose dosers.

By pre-dosing the correct amount of material, it is possible to then feed the amount of material to a press mold, so that panels with the same size and shape can always be produced in the subsequent pressing process. In this case, such dosing devices are partially arranged above a press mold to which the dosed material is fed. It is known that the doser device is suspended from a support, for example from a vertically extending arm, and is attached to it in an upper area. Because of the production processes, it is advantageous if an upward and downward movement of the dosing device is made possible with respect to a compression mold located below. It can also be advantageous to be able to pivot such a doser device about an axis, for example to be able to rotate a vertically extending column, for example in that the column serves as an axis of rotation.

In the prior art, such height adjustments and rotary movements of a dosing device are carried out by hand or by means of constructions which are susceptible to contamination and therefore susceptible to failure in their function.

The present invention is therefore based on the object of advantageously enabling an automated sequence of movements of the doser device, both in terms of its height adjustment and in terms of a rotary movement, with the heavy weight of such a dosator device within the plate production system being taken into account. In this way, an almost fault-free function can be made available. Furthermore, this sequence of movements should be able to be carried out with as little disruption as possible.

These objects are achieved according to the invention by a plate production system according to claim 1. Advantageous embodiments and developments are the subject of the dependent claims.

A plate production system according to the invention for producing plates has a press mold to which a material to be pressed can be fed and a dosing device which feeds the material to be pressed to the pressing mold in a metered manner, the dosing device being arranged above this pressing mold and the dosing device being arranged on a carrier and said carrier moving the dosing device in a Allows vertical direction of the carrier and / or pivoting of the dosing device in a predetermined pivoting direction.

According to the invention, the carrier device has a lifting column movable in the vertical direction, and a drive device which is used to move the lifting column in the vertical direction, and at least one sealing device for sealing components of the carrier device from an environment.

It is therefore proposed to provide a column device for suspending a metering device, in particular in an upper area, which is advantageously connected to the foundation of the plate production system and in particular is connected on the underside and which particularly preferably has an encapsulated lifting column, as described below particularly preferably both rotary drives and a lifting or upward and downward movement drive are provided.

In a preferred embodiment, the plate production system has a transport carrier, such as a turntable, which is preferably guided past the metering device and also other work stations so that they can carry out different production steps on the product.

The plate production system is preferably a rotary system. The plate production system is particularly preferably a system that operates in a clocked manner. In addition to the metering device described here, the plate production system preferably also has a pressing device for pressing plates and / or a pre-pressing device or pre-pressing station.

It is therefore proposed that this carrier device is at least partially sealed off from an environment, with sealing being understood to mean that soiling of the carrier device can in any case be prevented or reduced.

The lifting column is particularly preferably arranged on a floor support. The drive device for moving the lifting column is particularly preferably an electromotive device, although pneumatic drives or hydraulic drives would also be conceivable.

In a preferred embodiment, the lifting column extends in a vertical direction.

In a further preferred embodiment, the system has a pressing device which presses the material to be processed and in particular presses it into the press mold.

The pressing device is particularly preferably a hermetic press.

The metering device can be, for example, a disk metering device or a hose metering device. The metering device can have a multiplicity of disks which particularly preferably rest against one another in a working mode and which particularly preferably have through openings through which the material to be pressed can be passed.

In a particularly preferred embodiment, the metering device has an insertion device and in particular an insertion funnel through which the material can be fed.

In a particularly preferred embodiment, the lifting column is designed to be non-rotatable.

In a further preferred embodiment, the sealing device has a first sealing device for sealing sections of the lifting column from the environment. In this way, areas of the lifting column in particular can be secured from contamination.

In a further preferred embodiment, the first drive device has a lifting spindle for performing the lifting movement.

This lifting spindle can interact with a nut, for example, in order to effect the vertical movement of the lifting column.

In a particularly preferred embodiment, this lifting spindle is arranged at least in sections within the lifting column. In this way, the lifting spindle can be protected from contamination

This lifting spindle can particularly preferably be arranged completely within the lifting column. In a preferred embodiment, the lifting column is encapsulated not only in its exposed areas in relation to the environment, for example by means of a housing, but also in a first and in particular upper area which has a further drive, for example a rotary drive motor, and also a lower area in which the said lifting spindle and / or the drive device is arranged for performing the lifting movement. These are preferably each arranged in the inner areas, that is to say in particular an area that is shielded from an outer area.

A preferably vertically extending column device can be provided, which is used to attach a doser device, for example in the area of connecting elements, and which also preferably has a lifting column that can be moved up and down, which protects against contamination to avoid malfunctions due to the upward and downward movement is.

As mentioned above, the lifting column or column device can have a foot which is fixed in relation to, for example, a table or another carrier of a plate production system or a floor.

The above-mentioned drive device, which is advantageously arranged within the foot and particularly preferably extending in the horizontal direction, is used to drive a lifting spindle. As mentioned, however, the lifting spindle is preferably arranged within the lifting column and thus also remains free of contamination.

This also applies to the above-mentioned preferably internal drive motor.

In this case, said lifting spindle can have a spindle in a predetermined area, for example in its upper area, which is used for the lifting column device to move up and down by rotating the spindle. For this purpose, the lifting column can have a thread which engages in the spindle.

In this way, by rotating the spindle, which rotation is effected by a drive motor, the lifting column can be moved up or down with respect to the spindle by means of the spindle or screw effect.

In a further preferred embodiment, the sealing device has at least one sealing device for sealing the first drive device from the environment. As mentioned above, the drive device can be an electric motor which is arranged within a housing and is also encapsulated from the environment by this housing.

In a further preferred embodiment, the carrier device has a second drive device which effects a pivoting movement of the metering device with respect to a predetermined pivot axis. This pivot axis can in particular be a vertically extending axis.

In a particularly preferred embodiment, this second drive device is spaced apart from the first drive device. As mentioned above, the first drive device can be arranged in a foot area of the carrier device and the second drive device in an upper area. The lifting column is preferably arranged between the first drive device and the second drive device.

In a further preferred embodiment, the second drive device is arranged in a stationary manner. Furthermore, the device can have a rotary bearing in order to be able to rotate components of the carrier device with respect to other components.

In a further preferred embodiment, a further sealing device is provided which seals the second drive device from the environment. In this way, the second drive device, for example a drive motor, but also corresponding mountings can be sealed off from the environment, so that contamination is prevented.

In a further preferred embodiment, the carrier device has a fastening device for releasably fastening the metering device to the carrier device. For example, the carrier device can be suspended in an area of the fastening device. For this purpose, the metering device can have hook elements, for example, which corresponding counterparts can be hung on the carrier device.

In a further preferred embodiment, the second drive device is arranged above this fastening device.

In a further advantageous embodiment, the sealing device has at least one bellows. Such a bellows enables a seal and, at the same time, an extension and retraction of a lifting cylinder while maintaining the sealing function.

In a further preferred embodiment, the sealing device has a first column jacket which surrounds the lifting column at least in sections.

In a further advantageous embodiment, an anti-rotation device is provided which prevents the lifting column from rotating with respect to this column jacket.

Due to the above-mentioned embodiment of a rotating spindle device, there is a risk that the lifting column will rotate with it. This is prevented by the anti-rotation device mentioned here, for example a safety device. This anti-rotation device can be a permanent connection between the lifting column and an external column jacket, which is described above. This column jacket can preferably be arranged within a column jacket foot by means of sealing elements. Sealing devices can preferably also be provided above the mentioned column jacket, which can be particularly preferably circular and thus enable a seal with respect to the surroundings.

In order to guarantee an upward and downward moving lifting column, which is therefore advantageously arranged inside the column jacket and is therefore largely protected against dirt, a complementary trained nut may be provided, which is also arranged within the lifting column. Rotating the spindle with respect to a vertical axis therefore allows this nut and thus the lifting column to move relative to a spindle. Turning in the other direction would in turn cause a downward movement.

If the lifting column preferably moves up and down, there is an area free of the column jacket which changes in length or in height during the upward and downward movement. In order to ensure indirect and adequate protection of the lifting column from the outside area and thus a trouble-free function of the entire column device, a bellows can be provided in this area, as mentioned above, which extends in its upper area from a column head jacket down into the upper area of the column jacket , in which the sealing elements can preferably also be present, extends.

This bellows can preferably be opened and closed so that the exposed, changing lengths or height expansions of the lifting column can be bridged in an encapsulating manner during the upward and downward movement.

The above-mentioned drive motor that is preferably present in the upper region of the column head jacket is also preferably optionally encapsulated against contamination. This drive motor can rotate with respect to an internal rotating unit and thereby cause a rotation of the entire column head jacket (with the metering device arranged on it). For this purpose, the holding device present for accommodating the metering device is also rotated about the vertical axis. This in turn has the consequence that the dosator device, which is arranged on the holding device, is pivoted or rotated along a vertical axis.

In a further preferred embodiment, the sealing device has a second column jacket which surrounds the lifting column and which is spaced apart from the first column jacket. The above-mentioned bellows can be provided between these two column shells. In particular, the second column jacket is spaced apart from the first column jacket in a longitudinal direction of the lifting device and in particular in a vertical direction.

As mentioned above, the second column jacket is particularly preferably rotatable relative to the lifting column.

Fig. 1

eine Darstellung einer erfindungsgemäßen Anlage zum Herstellen von Platten;

Fig. 2

eine Darstellung eines Trägers für eine Dosatoreinrichtung.

Further advantages and embodiments emerge from the attached drawings: They show:

Fig. 1

a representation of a system according to the invention for the production of panels;

Fig. 2

a representation of a carrier for a dosing device.

Fig. 1 shows a panel production system 100 according to the invention. This has a turntable on which a plurality of processed processing stations is arranged. In this case, this reference number 1 relates to a dosing device, described in more detail here, which doses the material to be fed into a press mold.

Reference numeral 102 denotes a distribution station which distributes the material filled by the metering device 1 into a mold, for example a press mold, or effects a uniform distribution of this material.

The reference symbol 103 relates to a free station. This can be staffed to carry out additional, optional work steps, for example to produce special models of panels

The reference numeral 104 denotes a back concrete filling station. This can add a further or material layer, for example. In this way, multi-layer panels can be produced. This station can also be omitted when producing single-layer panels.

The reference numeral 105 shows a pre-compression device. This station is used to pre-compress the material filled into the mold (before the actual pressing process).

The reference number 106 shows the pressing station in which the panels to be produced are pressed.

The reference number 107 denotes an output station or removal station, in which the manufactured panels are removed or pressed out of their mold.

The reference number 52 denotes a rotatable transport carrier. By means of this transport carrier, the material is transported from one station to the next station in intermittent operation. The individual stations 1 and 102-107 are arranged to be stationary with respect to this rotary movement of the transport carrier.

The reference number 1 identifies the doser device described here.

This doser device can have a feed device or an insertion device for a material to be pressed, such as a filling funnel. In addition, the dosing device can have a receiving device, such as a so-called dosing pot, in which the material to be pressed arrives. A plurality of doser disks can be arranged below this doser pot, the dosator disks preferably having openings through which the material to be pressed can pass, with dosing being achieved by rotating these doser disks.

Fig. 2 shows a schematic representation of a carrier device according to the invention for carrying the dosator device (not shown). A holding device 3 is provided on which the doser device (not shown) can be arranged. The carrier device is designed overall as a lifting column 2, which can be displaced in the vertical direction V. For this purpose, a driven lifting spindle 8 is provided which cooperates with a nut (not shown) in order to achieve the longitudinal movement or lifting movement of the lifting spindle 2. The reference numeral 11 denotes an anti-rotation device in order to prevent the lifting spindle from rotating with respect to a column carrier or column casing 10.

The reference numeral 9 designates sealing elements in order to seal the lifting columns 2 from an environment.

The reference number 8 denotes the lifting spindle itself. The reference number 6 denotes a drive motor which is used to rotate the lifting spindle. The reference number 4 denotes a foot, within which the drive motor 6 is integrated.

The reference numeral 27 denotes a gear for the lifting spindle.

The reference number 12 denotes further sealing elements for sealing the lifting spindle 2. The reference number 13 denotes a bellows which seals further areas of the lifting spindle and also enables a seal independent of a height position or displacement position of the lifting spindle relative to the column jacket.

The reference number 14 denotes a second column jacket which is arranged in an upper region of the lifting spindle and in turn seals it. The reference symbol 15 denotes a rotating unit which enables the holding device 3 to be rotated. A counterweight can be arranged opposite the assembly point for the dosator device (not shown).

The reference number 16 denotes a further drive motor which enables the fastening device 3 to be rotated, as shown by the arrow P.

The reference number 17 denotes an axis of rotation in the upper region, in particular an upper third, of the device. This rotation axis is used to implement the rotary movement, for example by means of gearwheels, not shown, of the column head casing 14 and the holding device 3 by activating the drive motor and to carry out or fix the movement as such.

The applicant reserves the right to claim all features disclosed in the application documents as essential to the invention, provided that they are new to the state of the art individually or in combination. It is further pointed out that features have also been described in the individual figures, which can be advantageous in themselves. The person skilled in the art immediately recognizes that a certain feature described in a figure can also be advantageous without the adoption of further features from this figure. The person skilled in the art also recognizes that there are also advantages through a combination several features shown in individual or in different figures.

List of reference symbols

1

Dosing device

2

Lifting column

3

Holding device, fastening device

8th

Lifting spindle

9

Sealing elements

10

Pillar mantle

11

Anti-twist device

12

Sealing elements

13

Bellows

14th

second column mantle

15th

Turntable

16

further drive motor

17th

Axis of rotation

27

transmission

52

rotatable carrier

100

Plate production line

102

Distribution station

103

Free station

104

Back concrete filling station

105

Pre-compression device

106

Pressing station

107

Dispensing station

V

direction

P

arrow

Claims (14)

Plate production system (100) for producing plates with a press mold to which a material to be pressed can be fed and with a dosing device (1) which feeds the material to be pressed to the pressing mold in a metered manner, the dosing device (1) being arranged above this pressing mold and wherein the dosator device (1) is arranged on a carrier and this carrier enables the dosator device to be moved in a height direction (h) and the dosator device to be pivoted in a predetermined pivoting direction,
characterized in that
the carrier device has a lifting column (2) movable in the vertical direction, as well as a first drive device (6) which serves to move the lifting column (2) in the vertical direction and at least one sealing device (13, 9, 12) for sealing components of the carrier device versus an environment. Plate production plant (1) according to claim 1,
characterized in that
the sealing device has a first sealing device (13) for sealing sections of the lifting column (2) from the environment. Plate production plant (100) according to at least one of the preceding claims,
characterized in that
the first drive device has a lifting spindle (7) for performing the lifting movement. Plate production plant (100) according to the preceding claim,
characterized in that
the lifting spindle is arranged at least in sections within the lifting column (2) Plate production plant (100) according to at least one of the preceding claims,
characterized in that
the sealing device has at least one sealing device for sealing the first drive device from the environment. Plate production plant (100) according to at least one of the preceding claims,
characterized in that
the carrier device has a second drive device (15, 16) which enables the metering device (1) to pivot. Plate production plant (100) according to the preceding claim,
characterized in that
a further sealing device is provided which seals the second drive device from the environment. Plate production plant (100) according to at least one of the preceding claims,
characterized in that
the carrier device has a fastening device for releasably fastening the metering device to the carrier device. Plate production plant (100) according to the preceding claim,
characterized in that
the second drive device is arranged above the fastening device. Plate production plant (100) according to at least one of the preceding claims
characterized in that
the sealing device has at least one bellows. Plate production plant (100) according to at least one of the preceding claims
characterized in that
the sealing device has a first column jacket (10) which surrounds the lifting column at least in sections Plate production plant (100) according to the preceding claim,
characterized in that
the anti-rotation device (11) is provided, which prevents the lifting column (2) from rotating relative to the column jacket. Plate production plant (100) according to at least one of the preceding claims
characterized in that
the sealing device has a second column jacket (14) which surrounds the lifting column (2) and which is spaced apart from the first column jacket Plate production plant (100) according to the preceding claim,
characterized in that
the second column casing (14) is rotatable relative to the lifting column (2).

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