ES2534777T3 - Grinding machine for flat grinding of building elements made of ceramic or similar material, in particular bricks - Google Patents

Abstract

Grinding machine (1) for flat rectification of construction elements (3), with - a support machine frame (6) having a rear end part and a front end part (6a, 6b) as well as a central part ( 6c, L), - a passage (4) extending through the grinding machine (1) from the rear end thereof to the front end thereof for the construction elements (3), - a transport device ( 2) associated with the passage (4) for the transport of the construction elements (3) longitudinally through the passage (4), - and at least one rectifying device (7) that is arranged transversely in a displaced manner with respect to the passage (4) ) and that it can be moved transversely between two positions by means of a first displacement device (11) in a first transverse guide (12), - the rectifying device (7) presenting a rectification housing (8) and a wheel (9 ) swivel mounted on it, - the rectification housing (8) and the wheel (9) being mounted in each case on a transverse slide (13, 17) which is mounted so that it can be moved between two positions by means of a displacement device (11, 15) in a transverse guide (12, 16), - and the transverse slide (13) supporting the rectification housing (8) and the transverse slide (17) supporting the wheel (9) being mounted in each case so as to be they can move independently of one another, characterized in that the grinding machine (1) has more than one rectifying device (7) and the central part (6c, L) of the grinding machine (1) that is located between the end parts (6a, 6b) it is configured in a modular way by having two opposite rectifying devices (7) mounted on a base frame (60) as a table in each case, and as such constitutes a rectifying station module (70,72,73 ) which is screwed with its rect station module ification (70,72,73) adjacent and / or with an end part (6a, 6b) by the base frame.

Description

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DESCRIPTION

Grinding machine for flat grinding of building elements made of ceramic or similar material, in particular bricks

The invention relates to a grinding machine for flat grinding of construction elements of ceramic or similar material, in particular of bricks, according to the preamble of claim 1, as is known, for example, from EP-A-0 849 036

Construction elements for the construction of houses and other buildings, in particular bricks, are usually placed or covered with mortar-filled joints. In this respect, the mortar and the joints fulfill the purpose of compensating different measures and shapes of the constructive elements so that, despite differences in sizes and shapes, the constructive elements can be placed or upholstered in straight layers.

In the construction of buildings it is known, among other things, to glue together construction elements placed or boarded up next to each other, pretending thin joints to save glue.

However, thin joints are also intended for a conventional construction mode to save joint material or mortar.

However, with thin joints you can only work when the construction elements are identical with respect to their surfaces located one above the other and also next to each other and their associated height and horizontal dimensions.

To flatten surfaces located one above the other or also next to each other of the construction elements, it is known from DE 10 2005 043 548 A1 to flatly rectify a lateral surface of bricks fed horizontally and one behind the other on a transport device Whenever the building elements or bricks must be ground flat on both sides, it is known from DE 10051253 A1 to transport the series of construction elements between two wheels, these being rectified at the same time on both sides. In this previously known grinding machine, two grinding devices are arranged one behind the other in the direction of the grinding machine, the last grinding device rectifying a second layer, for example, a thin layer.

The invention is based on the objective of simplifying the construction in a present grinding machine and, preferably, configuring it so that it can be assembled from several construction groups, for example, at least partly prefabricated. It is also intended to find a construction that makes it possible to configure the grinder optionally with one or more rectifier devices and, in this regard, find a simple construction mode that can be produced economically and, in particular, is also easy to assemble or disassemble .

In the grinding machine according to the invention one or more rectifying devices can be arranged on one or both sides of the passage.

With regard to a grinding machine of this type, special requirements are also raised with regard to adapting it to the width or different widths of the construction elements in order to adjust the distance with respect to the construction elements or with respect to construction elements with a different width In this respect, it is desirable to be able to adapt the rectification housing and the grinding wheel of the rectifying device independently of one another to certain or different cross-sectional measures of the blank. The rectification housing must be able to be moved as close as possible to the construction elements, taking into account a safety distance with respect to the construction elements to ensure the effectiveness of a suction evacuation device integrated in the rectification housing. However, the wheel must also be able to move independently of the grinding housing, for example, in order to adjust a chip depth in the flat grinding.

Therefore, the invention is further based on the objective of improving the possibility of adjusting the rectifying device in a grinding machine of the present type. In addition, it is intended to find a construction that allows a controlled and simple adjustment of both the rectification housing and the grinding wheel of the rectifying device. In addition, the assembly or disassembly of the rectifier device must also be improved. In addition, it is intended to find a construction in which the displacement device for the rectification housing and the displacement device for the grinding wheel are independent of each other and, therefore, one of these displacement devices can optionally be operated without the other Scroll device scroll together.

This objective is achieved by the features of independent claim 1. Advantageous improvements of the invention are described in associated dependent claims.

In the grinding machine according to the invention according to claim 1, the grinding device has a grinding housing and a wheel rotatably mounted therein, the grinding housing and the grinding wheel being

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mounted in each case on a transverse slide which is mounted by means of a drive in an associated transverse guide in each case so that it can slide between two positions, and the transverse slider that supports the rectification housing and the transverse slide that supports the wheel mounted so that they can slide independently of each other. In such a configuration, the grinding housing and the wheel can be adjusted by means of an optional slide to one side and / or the other side, this can be done independently of each other, so that an optional adjustment can be made and not Change the setting of the other setting in case of an optional setting. This ensures a simple adjustment that is easy to handle and controlled and independent of the grinding housing and / or the wheel with respect to the passage or with respect to the construction element found therein.

Furthermore, it is advantageous to form the transverse guide for the transverse slide that supports the rectification housing by means of rear and front transverse guides, the rear transverse guide part being disposed at the rear end part and the front transverse guide part at the part front end This configuration allows an identical configuration of the end parts also when the transverse slide that supports the rectification housing and the other longitudinal parts are configured with a different length for an optional number of rectifying devices. Therefore, this configuration also contributes to using the same end parts and longitudinal parts for an rectifier with an optional number of rectifier devices with an optionally determined number of rectifier devices and the associated length.

In a grinding machine, which can be adjusted for different widths of the construction elements to be rectified, advantageously, in particular the lower transport device or also the upper transport device are configured in an adjustable manner with respect to their width so that it can or can adjust properly with respect to the width of the constructive elements and, therefore, it can act together with these in the outer zones of the constructive elements, whereby the stability of the support of the constructive elements in the passage is improved.

Alternatively, it is advantageous to have, instead of a lower or also upper transport device that can be adjusted with respect to its width, in each case two lower and upper transport devices whose distance from each other can be adjusted appropriately with respect to to the existing width in each case of the constructive elements. Also in this way the left and right transport devices can be adjusted in each case with respect to a width such that they act in conjunction with the construction elements in the outer areas thereof.

In this regard it is especially advantageous to join the lower or also upper transport device associated on the respective side with the associated rectification housing and / or the transverse slide that supports it so that, thereby, it constitutes a movement unit and, by therefore, a special transverse drive for the transport device (s) can be omitted.

As already mentioned, in such a grinding machine, which is suitable for rectifying at the same time the construction elements on two opposite sides of each other, the opposite machine side is arranged laterally inverted with respect to the rectifying device (s), with respect to to the transverse slide that supports them and with respect to the respective wheels as well as their drives, also taking place a sideways inverted function.

The respective transverse guide is problematic for a transverse slide, since in the case of the transverse slide it is a relatively long and narrow construction element, in particular when several rectifying devices are arranged one behind the other on the same. Therefore, it is advantageous to combine the transverse slide drive with a synchronization device that ensures uniform movements of the rear and front end areas of the transverse slide. In this way it is possible to arrange the transverse slide drive optionally in one of the two end zones of the grinder, preferably in the front or rear end portions. The synchronization device may have, for example, a longitudinally extending synchronization shaft, which in both end zones is connected in each case with a crank mechanism to slide the ends of the transverse slide.

However, within the framework of the invention, the synchronization device can also have two transverse drives for the transverse slide which are arranged in the end areas of the grinder, preferably in the end portions, and which can slide the ends of the transverse slide optionally transversely with uniformity between two positions.

For two transverse slides opposite each other and in each case supporting the at least one associated rectification housing, it is advantageous to join these together with a motion reversing device that extends transversely so that only one drive motor is sufficient. to move both transverse slides towards each other or away from each other. In this regard it is also advantageous to mount, in the case of two transverse slides arranged opposite to each other, two motion reversing devices in the end areas of the transverse slides, preferably in the end parts, whereby It is a simple construction mode and a safe function when moving the slides

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transversal.

Advantageously, the transport device has a lower transport device and an upper transport device for construction elements that can be transported therebetween, the 5 transport devices being preferably formed by belt conveyors with surrounding conveyor belts. Advantageously, the width of the transport device can be reduced and enlarged. Advantageously, two or more transport devices arranged side by side are arranged below or above. Advantageously, one or both transport devices arranged next to each other can be moved by means of a displacement device respectively associated transversely or in opposite directions and can be fixed in the adjusted position in each case. Advantageously, the transport device

or the transport devices that can be moved transversely constitute in each case a movement unit with the transverse slide and / or laterally adjacent rectification housing. Advantageously, the at least one transport device that can be moved transversely is mounted in the rectification housing or in the transverse slide. Advantageously, the upper transport device 15 can be moved up and down by a height adjustment device in an approximately vertical transverse guide. Advantageously, a rear height adjustment device part and an anterior height adjustment device part are provided, the rear adjustment device part being disposed at the rear end part and the anterior height adjustment device part in the front end part. Advantageously, the transverse slide that supports the rectification housing is arranged deeper than the transverse slide that supports the wheel, preferably below it. Advantageously, the transverse slide that supports the rectification housing is offset with respect to the transverse slide that supports the wheel towards the passage. Advantageously, the end parts have foot parts, in particular in each case two side foot parts, and, preferably, only the end parts have foot parts. Advantageously, upper longitudinal parts and lower longitudinal parts 25 are provided. Advantageously, in the case of a grinding machine having more than one rectifying device, the central part of the grinding machine that is located between the end portions is modularly configured, since two opposite rectifying devices are mounted on each case base frame as a table, and as such represents a rectification station module that is screwed with its adjacent rectification station module and / or with an end portion by means of the base framework. Advantageously, the

The base frame has recesses in which construction groups can be housed that extend beyond the modularly configured part of the grinder and, as such, are independent of length. Advantageously, the suction evacuation housing can be integrated into the base frame.

Additional dependent claims include features that guarantee simple constructions

35 and favorable with regard to integration and connection with a function and also lead to small constructions that allow sufficient free space between the construction elements and, therefore, allow favorable access for production or adjustment.

The invention will be explained in more detail below by way of exemplary embodiments and configuration details as well as associated drawings. Show

1 shows a grinding machine according to the invention for flat grinding of building elements of ceramic or similar material, in particular of bricks, in a perspective view from the front and from above; Figure 2 the grinding machine in the side view;

45 Figure 3 the grinding machine in the previous view; Figure 4 the grinding machine according to Figure 1 in a so-called exploded representation; Figure 5 a grinding machine according to the invention in a perspective view from the front and from above in a modified configuration; Figure 6 an additional configuration in the form of a base frame,

50 Figure 7 a perspective view with various levels of rectification on base frames.

The grinder designated with 1 in its entirety serves to flatly rectify the construction elements 3 on two sides opposite each other, preferably on the opposite sides horizontally with each other. This is done in a step 4 that extends longitudinally through the machine 1 through which the

55 construction elements 3 with the aid of a transport device 2 located one behind the other and continuously from the rear end to the front end of the grinding machine 1.

The feeding of the construction elements 3 towards the input end and the additional transport of the construction elements 3 from the output end of the grinder 1 is carried out in each case by means of 60 suitable additional feeding and guiding transport devices that are represented as 2d, 2e arrows for simplification reasons.

In the exemplary embodiments that will still be described of the grinding machine 1, identical or comparable parts are designated with identical reference numbers. 65

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The grinder 1 has a support body in the form of a support 6 that is composed of three main groups, namely a rear end part 6a, a front end part 6b and a central part 6c which in the present embodiment is formed by several longitudinal parts arranged next to each other and one above the other, which are joined with the end portions 6a, 6b, for example, by bolted joints.

In addition, the grinding machine 1 has several functional groups, specifically the transport device 2 and one or several rectifying devices 7 preferably arranged opposite each other with respect to step 4, which in each case have a grinding housing 8 and a wheel 9 rotatably mounted therein that in each case can be adjusted and displaced transversely by means of a displacement device 11 or 15 with a transverse guide 12 or 16, a transverse slide 13 or 17 and a drive motor 14 or 18. In addition, the wheel 9 is rotatably mounted on the associated transverse slide 17 and can be rotated by means of a drive motor 19 for the rectification operation.

The purpose of the rectification housing 8 of the rectifying devices 7, which in particular are configured identically with each other, is to receive and evacuate the rectification powder that occurs in the functional operation. For this, they are assigned to the rectification housings 8, for example, on the lower side, in each case an aspiration evacuation conduit or an aspiration evacuation housing 21 (Figure 4) which can be connected with an evacuation conduit by aspiration for evacuation by aspiration and additional guidance of dust evacuated by aspiration.

By means of the possibility of transverse directed displacement of the grinding housings 8 it is possible to vary and adjust with constant widths b of the constructive elements 3 the transverse distance between the constructive elements 3 and the grinding housings 8 and, thereby, improve the evacuation efficiency by rectification dust aspiration. In this regard, the transverse distances with a different size between the construction elements 3 and the rectifying housings can be adjusted with respect to the passage direction 4a

8.

In contrast, the possibility of transverse directed displacement of the wheels 9 serves to adjust the grinding depth or the chip depth for the associated wheel 9.

However, both displacement devices 11.15 are also suitable for adapting positions of the grinding housings 8 or wheels 9 in each case to different widths b of the construction elements 3.

The rectifying devices 7 preferably arranged opposite each other are arranged with mirror symmetry with respect to the vertical longitudinal central plane E1 of the rectifier 1 or step 4, which also results in a laterally inverted adjustment and displacement of the rectifying devices 7 opposites, which is also understandable without an additional description of the possibility of adjustment and displacement. This is also true for the mechanisms described below of the rectifying devices 7 and also for the adjustment or displacement devices that are still to be described in more detail.

The rectifying devices 7 are mounted on the central part 6c which in the present embodiment is formed from several longitudinal parts arranged with a transverse distance from each other, which can best be seen in Figures 2 and 4. Accordingly, the central part 6c has an upper and outer longitudinal support 22a to which it is adjacent to an inward directed distance, for example, an identical upper longitudinal support 22b. A lower longitudinal support 22c is arranged at a directed downward distance from inner longitudinal supports 22b from which one or several support columns 22d arranged distributed upwardly to the upper longitudinal support 22b extend and support the latter. The longitudinal supports 22a, 22b, 22c are attached, in particular they are screwed, with front parts 23 of the end portions 6a, 6b. The front parts 23 can be formed by plates that are formed with T-shaped slits 23a in the outer and lower corner area in each case.

The end parts 6a, 6b or the front parts 23 have in their lower outer zone two support feet 6d arranged on both sides that constitute the deepest parts of the support 6 so that in the other lower areas it has a distance with respect to base.

On the upper longitudinal supports 22a, 22b, raised supports 24 may be arranged at a longitudinal distance from each other on which the wheels 9 and support plates 25 supporting the movement device 15 thereof are supported and fixed. The associated transverse slide 17 in each case is arranged on the support plates 25 and is mounted so that it can slide between two positions in the transverse guide 16 formed, for example, by transverse slats 16a fixed on the support plate 25. The associated displacement device 15 may be formed by a spindle mechanism 26 whose spindle can be rotated by the drive motor 18 and an associated reduction gear. The transverse run of the displacement device 15 or of the wheel 9, for example, may be greater in a multiple of what is necessary for the adjustment of chip depths or for the adaptation of construction elements 3 with a different width . Due to this relatively large transverse stroke it can move

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the wheel 9 through a mounting hole 27 configured with a corresponding size in the outer wall of the rectification housing 8 outwardly so that it is conveniently accessible from the rectification housing 8 on the outer side for repair or maintenance .

An associated support plate 25 is assigned to each rectifier device 7 or wheel 9 or to each transverse slide 17. The transverse slide 13 is mounted below the support plate 25 and is mounted and can be adjusted independently of the transverse slide 17. In this respect, the transverse slide 13 may be displaced inward or towards step 4 with respect to the associated transverse slide 17.

The support plates 25 constitute in each case with the transverse slide 17 associated and arranged thereon, the rotary drive motor 18 and the wheel 9 a prefabricated construction unit 28, which is optionally mounted in one of the three sites of existing rectification.

In contrast, the transverse guides 12 and the transverse slide 13 are configured together for all existing rectification housings 8, in this case three units on each side, the transverse slider 13 being configured with a corresponding length to support the rectification housings 8 .

In the present exemplary embodiment, the transverse slide 13 is also a longitudinal support 31 that extends to the end portions 6a, 6b, the rear and front guide surface pairs 12a, 12b being as well as in each case in contact with guided from each other of the transverse guide 12 arranged at a longitudinal distance such that the guide surfaces 12a guiding the transverse slide 13 are arranged in the associated end portion 6a, 6b in each case.

In the present exemplary embodiments, the transverse slide 13 has a length such that it exceeds in height the dividing joints T between the end portions 6a, 6b and the central part 6c so that both pairs of the guiding surfaces 12a, 12b they are arranged in the end portion 6a, 6b associated in each case. As can be best seen in Figure 4, a longitudinal support 31 that constitutes the transverse slide 13 and that supports the rectification housings 8 exceeds in height the front parts 23 in a groove 23b, whose measure C directed along the direction of movement of the transverse slide 13, in this case horizontally, is greater in the same measure as the corresponding transverse measure of the transverse slide 13, so that it can perform its transverse movement in order to adapt to different widths b of the constructive elements 3.

As can best be deduced from Figure 1, the guiding surfaces 12a are arranged on the rear side of the rear front part 23 and on the front side of the front front part 23. In each case, a guide plate 12c is slidably mounted on the guide surface 12a which extends transversely to the passage direction 4a and is arranged vertically with a rear or anterior guide surface 12b. The transverse slide (s) 13 extend in each case to the associated guide surface 12c and are fixed therein. To ensure the desired transverse guidance direction, at least one guide core 12d can be configured between the guide surfaces 12a, 12b on a guide surface, for example, 12a, which is guided in a guide groove 12e on the other guiding surface, for example, 12b.

It is advantageous to simplify the operation of the transverse slides 13 arranged on both sides of the step 4 to provide between the displacement devices 11 transversely opposed to each other a motion reversing device 32 that converts the transverse movement of a transverse slide 13 in the transverse movement in the opposite direction of the opposite transverse slide 13. Preferably, there are two reversing devices 32 which in each case are arranged in the end areas of the transverse slides 13 and are effective. The inversion devices 32 are preferably arranged and mounted on the end portions 6a, 6b, in particular on the rear side of the rear front part 23 and on the front side of the front part 23.

From figures 1 and 3 the configuration and arrangement of the previous inversion device 32 of the present embodiment can be deduced. It has two connecting rods 32a oscillatingly arranged in a vertical plane that extend in their central oscillation position approximately along the transverse movement direction of the transverse slides 13, in this case horizontally, and are joined with their ends away from each other by a joint 33 pivoting vertically directly or indirectly with the associated guide plate 12c. At their ends directed towards each other, the connecting rods 32a are pivotally connected vertically by means of an articulation 34 with a pivoting element 35 having the joints 34 opposite each other from their pivot axis 36a which runs parallel to the direction of passage 4a and which may be formed by a pivot disk or a pivot lever. The pivot element 35, for example, can be pivotally mounted between the guide plates 16c opposite each other in the front part 23 or the end part 6a, 6b by means of a pivot joint 36c. The pivot element 35 and a connecting rod 32a constitute in each case a crank mechanism or two crank mechanisms that act in opposite directions.

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Due to the relatively large length of the transverse slide 13 in comparison to its width, its transverse directed guide 12 or its transverse drive is problematic. In order to uniformly slide the two ends of the transverse slide 13 and, in this respect, to ensure a small and simple construction it is advantageous to combine with the displacement device 11 a synchronization device 36 that guarantees a uniform transverse movement of the ends of the transverse slide 13. As can be seen in particular in Figures 1, 3 and 4, the synchronization device 36, for example, is formed by a synchronization shaft 36b extending longitudinally, extending approximately from the rear end part 6a to the front end part 6b and which in its end areas is connected in each case by means of a gear with the end areas of the or of the transverse slides 13 or with connecting parts thereof, see the guiding parts 16c. A gear of this type is formed in the exemplary embodiment in each case by means of the pivoting element 35 and the associated connecting rod 32a.

In a grinding machine 1 that only has one transverse slide 13 on one side only for at least one rectifying device 7, only a single gear or crank mechanism is necessary from behind and in front to move the transverse slide 13. There are two transverse sliders 13 arranged on both sides, the ends of the synchronization shaft 36b are connected in each case by means of two gears that act in opposite directions, in this case two crank mechanisms that act in opposite directions.

In the context of the invention, the synchronization device 36 may alternatively be formed in that rear and front drive motors 14a are arranged which optionally move the rear end and the front end of the transverse slide 13 or parts transversely. of connection thereof (guide plates 12c) between two positions, the synchronization shaft 36b being omitted. When two transverse slides 13 with rectifying devices 7 are arranged on both sides, the alternative configuration described above may be configured laterally inverted with respect to the vertical longitudinal plane E1 so that there are parts of displacement device 11a, 11b that act in opposite directions.

When the synchronization shaft 36d exists, it is mounted on the pivot joints 36c, the pivot elements 35 or pivot levers being fixed at their end zones.

The rear inversion device 32 not visible in Figure 1 and the synchronization device 36 are arranged and configured with mirror symmetry with respect to a vertical central transverse plane E2 shown in Figure 2. The synchronization device 36 and / or the reversing devices 32 posterior and anterior guarantee a transverse movement without tilting or hooking of the transverse slide (s) 13 in the transverse guides 12 on one or both sides of step 4.

The purpose of the transport device 2 is to transport the construction elements 3 longitudinally through step 4 and, in this regard, to hold them in each case with such intensity that the rectifying devices 7 can rectify the surfaces of the construction elements 3 that are addressed to them. In order to guarantee a corresponding provisional support of the construction elements 3 it is advantageous to engage the construction elements 3 in each case between two engaging elements transversely opposite each other that can be moved with the movement speed of the transport device 2 through the passage 4 and are arranged one above the other in the present embodiment. The coupling elements are preferably formed by surrounding conveyor belts 37a, 38a that slide slidably against a counter-support surface in front of a print so that they can act with a coupling pressure against the construction elements 3.

Therefore, in the exemplary embodiment, the lower and upper coupling elements are formed in each case by a belt conveyor 37, 38 surrounding along the direction of passage 4a whose endless conveyor belts 37a, 38a surround pulleys of deviation on the end side, the construction elements 3 being transported and held between the upper branch of the lower conveyor belt 37 and the lower branch of the upper conveyor belt 38. As can be clearly seen in Figure 3, the transport device 2 it has two lower belt conveyors 37 and arranged at a transverse distance side by side as well as an upper belt conveyor 38 arranged centrally, whereby the stability of the support of the construction elements 3 in the passage is increased. However, two belt conveyors 37 having a transverse distance from one another can also be provided at the top.

In order to further improve the support of the construction elements 3 in the passage it is advantageous to provide the lower transport device 2a, in this case the lower belt conveyors 37, in a sliding way in a displacement device to adapt them to construction elements 3 with a different width b and enable the lower transport device 2a to support the construction elements 3 at a small distance with respect to its lower lateral edges, whereby the support of the construction elements 3 is further stabilized.

A particularly advantageous configuration consists in fixing the lower transport devices 6a to the associated transverse slide 13 in each case or in the associated rectification housing 8 in each case so

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that the lower transport devices 2a constitute a rigid movement unit with the associated transverse slide 13 and / or the associated rectification housing 8. In this configuration, the displacement and adjustment of the lower conveying devices 2a or of the lower belt conveyors 37 are necessarily carried out in the displacement and adjustment of the associated transverse slide 13 or rectification housing 8 so as to omit a special support, guide and travel device for lower transport devices 2a or lower belt conveyors 37.

In order to also be able to adapt the at least one transport device 2b or upper belt conveyor 38 at different heights h of the construction elements 3, the upper transport device 2b can be moved and thereby adjusted by means of a height adjustment device 39 in a transverse guide 41 that extends approximately vertically.

Preferably, there are provided rear and front height adjustment devices 39a, 39b as well as front and rear transverse guides 41 a, 41 b which in particular are arranged in the associated end portion 6a, 6b. In each rear and front transverse guides 41a, 41b, a sliding slide 42a, 42b is slidably mounted in each case, in which the device body of the upper transport device 2b, which longitudinally exceeds the transverse slide in height, is fixed in each case. 42a, 42b associated therewith, and thus constitutes a transverse slide arrangement 42. The transverse guide 41a, 41b is arranged in a guiding frame 43a, 43b that is supported vertically, for example, in a displaced way towards one side of the grinding machine 1. The transverse slider 42a, 42b can be displaced in each case transversely by means of a spindle mechanism whose drive spindle 44a, 44b extends from the transverse slider 42a, 42b upwards, crosses a section of upper guide frame 43c and is rotatably mounted therein. Two additional lateral guide frame sections extend from the associated front part 23 upward towards the upper guide frame section 43c.

Preferably, a common drive motor 45 is provided for both height adjustment devices 39a, 39b which is in a drive connection with the height adjustment devices 39a, 39b, for example, by means of rear and front drive spindles 44a , 44b in each case by means of a suitable gear, for example, a bevel gear or helical gear, for example, by means of a synchronization shaft 44c extending longitudinally. As a result, both transverse slides 42a, 42b are moved at the same time and evenly up and down.

For further stabilization of the guiding frames 43a, 43b, they can be connected to each other by means of two longitudinal braces 46 that join their upper corner areas together.

At the entrance of step 4 or at the rear end of the grinding machine 1, two introduction belt conveyors 47a, 47b are arranged which laterally delimit step 4 with conveyor belts 47c that surround vertically arranged deflection pulleys, which preferably can be move laterally by means of a displacement device designated in its entirety with 48 in each case at the same time with the associated transverse slide 13 and can be adapted to a desired width b of the construction elements 3. In Figure 1, the belt conveyor of Left input 47a is shown displaced with a drive motor 49 in the opposite direction to the direction of passage 4a so as not to cover the inlet area of the grinder 1. Actually, the introduction belt conveyor 47a is arranged so opposite transversely to the introduction belt conveyor 47b, as shown in Figure 5.

At the front end of the grinding machine 1 there is a blow-out device 51 with supply lines 52 for compressed air for the extraction or blow-out of the construction elements.

3.

To the displacement devices of the grinding machine 1, one or a common electrical control and regulation device is assigned in each case to adjust the displacement element in question to a desired position. With M, subsequent and previous measurement devices are assigned to determine the actual position value of the transverse slide 13 or of the at least one housing 8 with respect to the support 6 whose signals are fed to the control device in order to adjust the desired value

In the functional operation of the grinding machine 1, the construction elements 3 are fed in each case in a conveyor 2d, 2e cleared only as an arrow and are evacuated from the exit of step 4. In the transport device 5 that extends between the devices of transport 2a, 2b, the construction elements 3 engage vertically between the lower transport device 2a and the upper transport device 2b and, thereby, are held stably and guided in the longitudinal direction between the wheels 9 opposite each other, rectifying or at least flattening on both sides with a previously determined chip depth.

In this regard, since there are several rectifying devices 7 arranged one behind the other in the direction of passage 4a, the wheels 9 can be adjusted in each case progressively displaced a few millimeters inwards in a certain transverse adjustment so that in the step of the construction element 3 rectifies in each case a certain chip depth. At the end of the transport device 2, the elements

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constructs 3 are released from their support and additionally transported.

The embodiment according to Figure 5 differs from the embodiment described above, among other things, in that only one rectifier device 7 is arranged on each side and, therefore, the rectifier 1 is sized with a correspondingly shorter length. In this regard, the end portions 6a, 6b are always configured in each case identically as per Figures 1 to 4, and can be prefabricated in production and provided for assembly.

Therefore, for making grinders 1 with a different number of rectifying devices 7, longitudinal parts are provided in each case that join the end portions 6a, 6b together, whose length L is determined taking into account the number of the rectifying devices 7.

For example, for a grinding machine with one or two rectifying devices 7 on both sides there are longitudinal parts that constitute the central part 6c with a length L such that it results due to the number of the rectifying devices 7 arranged one behind the other.

Therefore, to make a grinding machine 1 with a corresponding number of rectifying devices 7 it is only necessary to select the longitudinal parts that constitute the central part 6c and join these with the end parts 6a, 6b which are preferably always identical.

In the exemplary embodiment, the longitudinal supports 22a, 22b, the longitudinal supports 31 or the transverse slide 13, the lower and upper transport devices 2a, 2b, the synchronization shaft 44c and the longitudinal braces 46.

In the context of the invention, the grinding machine 1 can also have a different number of rectifying devices 7 arranged one behind the other, for example, on each side two or more than three rectifying devices 7.

In a particularly advantageous configuration of the above-described embodiment of the invention, all rectifying devices 7 are based on an identical modular machine frame construction in the form of a base frame 60 as represented, for example, in the Figure 6. A base frame 60 of this type is configured so that it can support two rectifying devices 7 opposite each other. The base frame 60 is a self-supporting table in itself with a support 61 (two-part) that is at a defined height, which in the central area has a recess 62. The support 61 is engaged in two profile plates 63, 64 located perpendicularly or is fixed by them. The function, configuration and location of each part of the two-part support 61 correspond to the support plates 25 described below. Each part of the support 61 supports in each case (as can be seen in Figure 7), like the support plates 25, a transverse slide 17, a rotary drive motor 18 and a wheel 9. Also the profile plates 63.64 in each case, in the area of the recess 62, also a recess 65 whose shape is determined by the distribution of the length-dependent construction groups (for example, of the synchronization device 36), which are below the height of support and extend by several basic frames. The profile plates 63, 64 themselves rest on foot elements 66 and are joined together in proximity to the base by means of stabilizer straps 67. The base frame 60 is constructed and shaped in total so that it can be pre-assembled with the most important construction groups such as with first and second rectification stations 68, 69 (wheel 9 and drive motor 19) with an evacuation vessel by associated suction (suction evacuation housing 21). Therefore, a rectifying station module 70 thus created is conceived according to the invention so that they can be successively arranged in a row and screw any number thereof. At the same time, the grinding head parts (front or rear end part 6a, 6b) can be connected to the outer base frame by means of a flange. The connection (screwed and flanged connection) is made through a number of holes 71 in the profile plates 63, 64.

An extension of the grinding machine 1 in this type of construction is extremely simple: First, the rear and / or front end parts (6a, 6b) are removed as well as the length-dependent construction groups (for example, the device for synchronization 36, longitudinal struts 46 stabilizers) and the machine is extended by one or more pre-assembled base frames 70. In Figure 7, for example, an extension in three levels of rectification is represented by introducing a central rectification level 70 (construction group) between two existing rectification levels (construction groups 72,73). Then, the disassembled end parts 6a, 6b are reconnected by means of a flange and the machine is finished assembling by modified length-dependent construction groups adapted to the new length (not shown). Therefore, by means of the construction of a modular machine frame, an existing grinding machine can be expanded with little effort, for example, of 1 level or 2 levels, directly at the place of use.

Apart from the base frame 60 and the functions described, the configuration of figures 6 and 7 corresponds identically to the configuration described in figures 1 to 5 and are applied without changing all the explanations made above.

Claims (6)

1. Grinding machine (1) for flat rectification of construction elements (3), with 5 -a support machine frame (6) having a rear end part and a front end part (6a, 6b) as well as a central part (6c, L), -a passage (4) extending to through the grinding machine (1) from the rear end thereof to the front end thereof for the construction elements (3), -a transport device (2) associated with the step (4) for the transport of the construction elements (3) 10 longitudinally through the passage (4), -and at least one rectifying device (7) that is arranged transversely offset with respect to the passage (4) and that can be displaced transversely between two positions by means of a first device displacement (11) in a first transverse guide (12), the rectifying device (7) presenting a rectification housing (8) and a wheel (9) mounted so 15 rotating therein - the rectification housing (8) and the wheel (9) mounted in each case on a transverse slide (13, 17) that is mounted so that it can be moved between two positions by means of a device displacement (11, 15) in a transverse guide (12, 16), - and the transverse slide (13) being supported by the rectification housing (8) and the transverse slide (17) 20 which supports the wheel (9) mounted in each case so that they can move independently of each other, characterized in that the grinding machine (1) has more than one rectifying device (7) and the central part (6c, L) of The grinding machine (1) that is located between the end parts (6a, 6b) is modularly configured as two opposite rectifying devices (7) are mounted in each case on a base frame (60) by way of 25, and as such constitutes a rectification station module (70.72.73) that is screwed with its adjacent rectification station module (70.72.73) and / or with an end portion (6a , 6b) by the base frame. 2. Grinding machine according to claim 1, characterized in that the transverse slide (13) supporting the 30 rectification housing (8) and / or the transverse slide (17) that supports the wheel (9) are mounted in each case on the support (6) or on still connecting parts of the support (6). 3. Grinding machine according to claims 1 to 2, characterized in that the transverse slide (13) supporting the housing (8) extends from one end part (6a) to the other end part (6b) and the transverse guide 35 (12) has rear and front guide surfaces (12a) for the transverse slide (13), of which the rear guide surface (12a) is arranged at the rear end portion (6a) and the guide surface (12a) above is arranged at the front end portion (6b). 4. Grinding machine according to one of the preceding claims, characterized in that the transverse slide (13) 40 which supports the rectification housing (8) crosses the end parts (6a, 6b) in each case in a groove (23b) and is connected in each case to a guiding part (12c), the guiding part being preferably (12c) rear mounted on the rear side of the rear end part (6a) so that it can slide transversely and the front guide part (12c) mounted on the front side of the front end part (6b).

A grinding machine according to one of the preceding claims, characterized in that several transverse slides (13) are provided that support longitudinal parts (22a, 22b, 22c) and rectification housings (8) in different lengths (L) that are determined by the respective number of the rectifying devices (7), the longitudinal parts (22a, 22b, 22c) being able to join with the end parts (6a, 6b).

A grinding machine according to one of the preceding claims, characterized in that, for transverse-directed displacement of the transverse slide (13) that supports at least one rectification housing (8), parts of the rear and front displacement device are provided. (11a, 11b) of which the rear displacement device part (11a) acts in the rear end zone of the transverse slide (13) and the anterior displacement device part (11b) acts in the anterior end zone of the slide

55 transverse (13). 7. Grinding machine according to claim 6, characterized in that the parts of the rear and front displacement device (11a, 11b) are parts of a synchronization device (36). A grinding machine according to claim 7, characterized in that the synchronization device (36) has a longitudinally extending synchronization shaft (36), the end zones of which are connected in each case as a drive by means of a gear with the associated end zones of the transverse slide (13) or mounting parts (12c) thereof. 65 10 9. Grinding machine according to one of the preceding claims, characterized in that a rectifying device (7) or several rectifying devices (7) are arranged on a transverse slide (13) located one behind the other on one side or both sides of the passage ( 4). A grinding machine according to claim 9, characterized in that between the transverse slides (13) arranged on both sides of the passage or between the posterior and anterior end areas opposite each other transversely to both sides of the passage (4) of the transverse slides (13) or mounting parts (12c) thereof, in each case a motion reversing device (32) is provided. 11. Grinding machine according to one of the preceding claims, characterized in that the base frame has recesses (62,65) in which construction groups can be accommodated that extend beyond the modularly configured part of the grinder (1 ) and, as such, are dependent on length. eleven