EP0785840B1 - Machine for trimming the sides of building blocks or the like - Google Patents

Machine for trimming the sides of building blocks or the like Download PDF

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Publication number
EP0785840B1
EP0785840B1 EP95936471A EP95936471A EP0785840B1 EP 0785840 B1 EP0785840 B1 EP 0785840B1 EP 95936471 A EP95936471 A EP 95936471A EP 95936471 A EP95936471 A EP 95936471A EP 0785840 B1 EP0785840 B1 EP 0785840B1
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EP
European Patent Office
Prior art keywords
machine
lateral
conveyor
belts
belt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP95936471A
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German (de)
French (fr)
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EP0785840A1 (en
Inventor
Thomas Derhake
Karl-Heinz Konert
Reinhold Ungruhe
Friedrich Wieligmann
Ulrich Wiescher
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Keller GmbH
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Keller GmbH
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
    • B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
    • B28D7/04—Accessories specially adapted for use with machines or devices of the preceding groups for supporting or holding work or conveying or discharging work

Definitions

  • the invention relates to a machine for the lateral processing of building blocks, in particular dried brick moldings or fired bricks, which are adjusted and transported in height between endless rotating conveying elements by at least one processing station with a lateral tool arrangement.
  • the objects to be machined laterally are transported clamped in the machine's own transport system between conveyor elements, which are either formed by chains or attached to chains. Because of the chains, there is a lot of wear and, due to the chain play, there is also an imprecise and therefore poor lateral guidance, i.e. lateral guidance, the cuboid to be machined. However, an exact position of the cuboids to be machined, in particular dried brick moldings or fired bricks, in relation to the side machining tools is necessary for the work to be carried out correctly (i.e. those with small dimensional tolerances).
  • the dreams interacting with the tiles run at a height distance which is smaller than the thickness of the tile to be processed, so that a vertical pressure is exerted on the tiles which prevents the tiles from shifting laterally during processing.
  • This system designed for grinding tiles, i.e. thin and light objects with a small side surface, is unsuitable for side processing, especially surface grinding, of thicker or taller as well as heavy objects such as building blocks (in particular dried bricks or fired bricks) - that
  • the known transport system does not guarantee non-slip object clamping when processing with large lateral forces and is unable to transport heavy building blocks in the required exact position.
  • the invention has for its object to provide an improved machine of the type mentioned, in which the laterally to be leveled blocks despite great thickness (or height in relation to the transport level) compared to tiles or shingles - and thus processing with large lateral forces - Safe in a once adjusted position, ie is fixed non-slip and can be transported in such a position immovably through at least one processing station.
  • the conveyor elements of the machine's own transport system are formed by flexible endless belts, which with their strand acting on the object to be machined are both one achieve exact lateral position as well as an exact flat position.
  • the machine's own transport system brings about a perfect block clamping with functionally stable position, i. H. in the relative position to the building block, support points.
  • the spring-loaded wedge profile rollers ensure play-free centering and belt side guidance in the area where the exact transport element side position is important.
  • the spline rollers in the subject matter of the invention only need to carry out the belt side guidance (by adjusting the belt splines).
  • the carrying and hold-down function of the conveyor elements is carried out in the machine's own transport system by the slide rails, over which the flexible endless belts run with their side areas.
  • belt sagging is avoided even when transporting heavy objects and an exact height of each transported building block is ensured when passing through the leveling station (s).
  • the building blocks to be leveled on the side are fixed by clamping alone and guided through the leveling station in the correct direction.
  • the machine according to the invention can be designed as a grinding machine and / or milling machine. It is preferably intended for the lateral processing of dried brick moldings and / or fired bricks - of course, other products of the building materials industry, for example pumice stones, refractory stones (firebricks), tiles, can also be processed with them.
  • the machine according to the invention for the lateral processing of building blocks or the like is preferably designed as a grinding machine.
  • the concept according to the invention can also be implemented on a milling machine. With this machine, either dried brick moldings Z or fired bricks Z are leveled on at least one side during the production of the facing bricks. Two-sided and thus calibrating processing is particularly preferred.
  • the machine according to the invention works in a continuous process.
  • It has a machine inlet formed by an adjusting device J, which automatically brings the objects to be processed, in particular to be ground (such as bricks or brick moldings Z) into a position required for processing (centered).
  • an adjusting device J which automatically brings the objects to be processed, in particular to be ground (such as bricks or brick moldings Z) into a position required for processing (centered).
  • the bricks (moldings) Z which are centered when they enter the machine's own transport system, are gripped by a conveyor 2 and pressing device 3 arranged on a machine frame 1 - with a base (element) 1b and both ends of stands 1a and clamped in height in an adjusted position and in such a position moved through at least one leveling station 4 and processed on at least one side, preferably on both sides, using leveling tools 5 designed as a grinding wheel or grinding head (similar to a milling head), in particular calibrated leveling.
  • leveling tools 5 designed as a grinding wheel or grinding head (similar to a milling head), in particular calibrated leveling.
  • the leveling tools (such as grinding wheels or milling cutters) 5 are provided with functional surfaces which are essentially assigned to their end face 5a. They rotate around an essentially horizontal axis. Your drive is numbered 5b. The entire functional unit (disc + drive) can be moved horizontally.
  • a non-contact measuring device is preferably present, which detects the machining end face 5a of each leveling tool 5 and whose signals are used for automatic leveling tool tracking.
  • the invention ensures that the bricks (shaped articles) Z remain in their lateral relative position specified by the adjusting device J also during the entire machining (grinding or milling).
  • the transport system is formed by two pressure-loaded endless belts made of flexible material, designed as a conveyor and pressure belt 2, 3, which are positively guided in the lateral position by means of at least one centering keyway-V-ribbed connection and at least in the area of the processing performing leveling tools (s) 5, in particular grinding wheel (s), run over a rail-like or plate-like flat abutment 9.
  • the conveyor belt 2 and the pressure belt 3 are provided on the back at least in the central cross-sectional area with splines 7a, in which spline rollers 8, as centering rollers, engage.
  • two slide strips 9 are provided which act on the two side areas.
  • the endless band material is designed as a so-called force band and has splines 7a and V-ribs 7b on the back.
  • the spline rollers 8 are spring loaded. 6 and 7, the spring elements shown symbolically are numbered 10.
  • each spline roller bearing is cushioned by means of a spring assembly and is arranged in a guided manner at the same time - this saves additional guide elements.
  • the pressing device 3 (in particular a so-called pressure belt 3) can be adjusted in the position relative to the conveyor belt 2 - and is accordingly arranged in a height-adjustable manner - and is supported in a spring-loaded manner as a whole.
  • conveyor belt 2 and pressing or holding-down device 3 are each detachably arranged as a complete “assembly unit” on the machine frame 1 or a part associated therewith, in particular holder 11.
  • These assembly units are marked in FIG. 1 by means of cross hatching. They have elements 15, 16, 17 of a plug connection, namely those for adjustment / position fixing (position 15), locking means 16 (eg screws) and an electric coupling 17.
  • the downtime in the event of maintenance and / or repair work can be reduced to a minimum if the device (s) present in the machine are dismantled 2/3 and replaced by a replacement unit .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • Soil Working Implements (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Coating With Molten Metal (AREA)
  • Ticket-Dispensing Machines (AREA)
  • Container Filling Or Packaging Operations (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)

Abstract

A machine is disclosed for trimming the sides of building blocks or the like, in particular dried green bricks (Z) or baked bricks (Z) that are centred, vertically clamped and thus conveyed through at least one trimming station with laterally arranged tools. The invention is characterised by a transport device with two endless belts under compression load made of flexible material and designed as conveyor and compression belts (2, 3). The conveyor and compression belts (2, 3) are forcibly guided in the lateral position by at least one groove and spring connection (7a, 8), in particular a keyway and V-rib connection, and run on a rail- or plate-shaped flat support (9) at least in the area of the trimming tools (5).

Description

Die Erfindung betrifft eine Maschine zum seitlichen Bearbeiten von Bausteinen, insbesondere getrockneten Ziegelformlingen oder gebrannten Ziegeln, die justiert und zwischen endlos umlaufenden Förderelementen höhenmäßig eingespannt durch mindestens eine Bearbeitungsstation mit seitlicher Werkzeug-Anordnung transportiert werden.The invention relates to a machine for the lateral processing of building blocks, in particular dried brick moldings or fired bricks, which are adjusted and transported in height between endless rotating conveying elements by at least one processing station with a lateral tool arrangement.

Bei den in der Praxis bekannten Ziegel-Schleifmaschinen werden die seitlich zu bearbeitenden Objekte im maschineneigenen Transportsystem zwischen Förderelementen eingespannt transportiert, welche entweder von Ketten gebildet oder an Ketten angebracht sind. Aufgrund der Ketten ergibt sich ein großer Verschleiß und außerdem infolge des Ketten-Spiels eine ungenaue und somit mangelhafte Seitenführung, d.h. seitliche Zwangsführung, der zu bearbeitenden Quader. Eine exakte Lage der zu bearbeitenden Quader, insbesondere getrockneten Ziegelformlinge oder gebrannten Ziegel, in bezug auf die seitlichen Bearbeitungswerkzeuge ist jedoch für eine einwandfreie (d.h. solche mit geringen Maßtoleranzen) Arbeitsausführung erforderlich.In the brick grinding machines known in practice, the objects to be machined laterally are transported clamped in the machine's own transport system between conveyor elements, which are either formed by chains or attached to chains. Because of the chains, there is a lot of wear and, due to the chain play, there is also an imprecise and therefore poor lateral guidance, i.e. lateral guidance, the cuboid to be machined. However, an exact position of the cuboids to be machined, in particular dried brick moldings or fired bricks, in relation to the side machining tools is necessary for the work to be carried out correctly (i.e. those with small dimensional tolerances).

Dokument DE-A-41 36 252 offenbart eine Maschine zum seitlichen Bearbeiten von Fliesen, mit den Merkmalen:

  • ein maschineneigenes Transportsystem, welches die zu bearbeitenden Fliesen nach seitlicher Ausrichtung erfaßt und in justierter Lage höhenmäßig eingespannt durch mindestens eine Bearbeitungsstation transportiert,
  • mindestens eine Bearbeitungsstation, insbesondere eine Planierstation, mit seitlicher Werkzeug-Anordnung,
  • das maschineneigene Transportsystem besteht aus einer Fördereinrichtung und einer gegenüber dieser höhenverstellbar angeordneten sowie als Ganzes abgefedert gehalterten Andrückeinrichtung,
  • mit den zu bearbeitenden Fliesen zusammenwirkende Förderelemente des Transportsystems, die von als sogen. Kraftbänder ausgeführten endlosen Bändern aus flexiblem Material gebildet werden.
Document DE-A-41 36 252 discloses a machine for the lateral processing of tiles, with the features:
  • a machine-specific transport system, which detects the tiles to be machined after lateral alignment and transports them in height in an adjusted position through at least one machining station,
  • at least one processing station, in particular a leveling station, with a lateral tool arrangement,
  • the machine's own transport system consists of a conveying device and a pressing device which is arranged in a height-adjustable manner relative to this and which is held in a spring-loaded manner,
  • with the tiles to be processed interacting conveyor elements of the transport system, the so-called. Straps of endless bands are made of flexible material.

Aus DE-A-41 36 252, das als nächstliegender Stand der Technik angesehen wird, ist eine Anlage zum seitlichen Kalibrieren von Fliesen (also verhältnismäßig dünnen Objekten der Baustoffindustrie) aus steinigem oder keramischem Material bekannt, bei welcher die seitlich zu schleifenden Objekte höhenmäßig zwischen endlosen Bändern aus flexiblem Material im maschineneigenen Transportsystem eingespannt gehalten und so an den seitlichen Bearbeitungswerkzeugen vorbeitransportiert werden. Die flexiblen Bänder des maschineneigenen Tranpsortsystems laufen ohne Trum-Unterstützung um und werden jeweils mittels zwei zwecks Einstellung der Bandspannung im Achsabstand veränderbaren Rollen, nämlich Antriebsrolle und Umkehrrolle, umgelenkt. Der Höhenabstand zwischen dem die Fliesen tragenden unteren Transportband und dem als Niederhalter auf die Fliesen wirkenden oberen Transportband ist einstellbar. Die mit den Fliesen zusammenwirkenden Trume verlaufen in einem Höhenabstand, der kleiner als die Dicke der zu bearbeitenden Fliese ist, so daß vertikal ein Druck auf die Fliesen ausgeübt wird, welcher ein seitliches Fliesen-Verschieben während der Bearbeitung verhindert. Diese zum Schleifen von Fliesen, d. h. dünnen und leichten Objekten mit kleiner Seitenfläche, konzipierte Anlage ist für das seitliche Bearbeiten, insbesondere Planschleifen, von dickeren oder höheren sowie schweren Objekten, wie es Bausteine (insbesondere getrocknete Ziegelformlinge oder gebrannte Ziegel) darstellen, ungeeignet - das vorbekannte Transportsystem gewährleistet keine rutschfeste Objekt-Einspannung bei der Bearbeitung mit großen Seitenkräften und vermag schwere Bausteine nicht in der erforderlichen exakten Lage zu transportieren.From DE-A-41 36 252, which is considered to be the closest prior art, a system for the lateral calibration of tiles (i.e. relatively thin objects from the building materials industry) made of stony or ceramic material is known, in which the objects to be sanded laterally are between endless belts made of flexible material held in the machine's own transport system and thus on the side processing tools be transported past. The flexible belts of the machine's own transport system circulate without strand support and are each deflected by means of two rollers that can be changed in the center distance for the adjustment of the belt tension, namely drive roller and reversing roller. The height distance between the lower conveyor belt carrying the tiles and the upper conveyor belt acting as a hold-down device on the tiles is adjustable. The dreams interacting with the tiles run at a height distance which is smaller than the thickness of the tile to be processed, so that a vertical pressure is exerted on the tiles which prevents the tiles from shifting laterally during processing. This system, designed for grinding tiles, i.e. thin and light objects with a small side surface, is unsuitable for side processing, especially surface grinding, of thicker or taller as well as heavy objects such as building blocks (in particular dried bricks or fired bricks) - that The known transport system does not guarantee non-slip object clamping when processing with large lateral forces and is unable to transport heavy building blocks in the required exact position.

Aus US-A-3 741 193 ist eine Maschine zum Schieferplatten-Beschneiden bekannt, bei welcher verhältnismäßig dünne und leichte Schieferplatten zur Schindel-Produktion in einem maschineneigenen Transportsystem höhenmäßig eingespannt und so durch eine scherenartig wirkende Schindel-Schneidstation, mit Rundmessern, transportiert werden. Das maschineneigene Transportsystem weist von endlos umlaufenden Keilriemen, im Querschnitt mit zwei Keilprofilen, gebildete Förderelemente auf, welche im Bereich ihres mit der Schieferplatte zusammenwirkenden Trums über abgefedert gehalterte Keilprofilrollen laufen. Die Keilprofilrollen bewirken dabei

  • a) eine Keilriemen-Zentrierung der beiden unteren Transportbänder sowie des oberen Niederhaltebandes und
  • b) das Tragen bzw. das Niederhalten der seitlich auf ein vorbestimmtes Maß zu beschneidenen Schieferplatte.
Die Anordnung der Keilprofilrollen als tragendes bzw. als niederhaltendes Funktionselement bewirkt, daß die Schieferplatte beim Auflaufen auf jeden rollenbeaufschlagten Riemenbereich einer Stoßbelastung unterliegt - dies ergibt eine ruckreiche Förderung. Eine ruckelnde Beförderung des zu bearbeitenden Objekts ist beim Schindel-Schneiden aus Schieferplatten zulässig oder sogar erwünscht (weil die Schindeln trotz maschinellem Beschneiden möglichst wie handbearbeitet aussehen sollen bzw. können), bei der Baustein-Planierung, insbesondere Planziegel-Produktion, jedoch äußerst nachteilig.From US-A-3 741 193 a machine for slate slab trimming is known, in which relatively thin and light slate slabs for shingle production are clamped in height in a machine's own transport system and thus transported through a scissor-like shingle cutting station with round knives. The machine's own transport system has conveying elements formed by endlessly rotating V-belts, in cross-section with two V-profiles, which run in the area of their strand interacting with the slate plate via spring-mounted V-profile rollers. The spline rollers effect
  • a) a V-belt centering of the two lower conveyor belts and the upper hold-down belt and
  • b) carrying or holding down the slate to be trimmed laterally to a predetermined size.
The arrangement of the wedge profile rollers as a load-bearing or as a holding-down functional element means that the slate plate is subjected to a shock load when it hits each belt-loaded belt area - this results in jerky conveyance. A jerky transport of the object to be processed is permitted or even desirable when cutting shingles from slate slabs (because the shingles should or may look as hand-made as possible despite machine trimming), but extremely disadvantageous when building block leveling, especially facing brick production.

Der Erfindung liegt die Aufgabe zugrunde, eine verbesserte Maschine der eingangs erwähnten Bauart zu schaffen, bei der die seitlich zu planierenden Bausteine trotz großer Dicke (bzw. Höhe in bezug auf die Transportebene) im Vergleich zu Fliesen oder Schindeln - und somit Bearbeitung mit großen Seitenkräften - in einer einmal justierten Lage sicher, d.h. rutschfest fixiert wird sowie in solcher Lage unverrückbar durch mindestens eine Bearbeitungsstation transportierbar sind.The invention has for its object to provide an improved machine of the type mentioned, in which the laterally to be leveled blocks despite great thickness (or height in relation to the transport level) compared to tiles or shingles - and thus processing with large lateral forces - Safe in a once adjusted position, ie is fixed non-slip and can be transported in such a position immovably through at least one processing station.

Erfindungsgemäß wird dies durch eine Maschine gemäß Anspruch 1 gelöst. Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen.According to the invention, this is solved by a machine according to claim 1. Further developments of the invention result from the subclaims.

Bei der erfindungsgemäßen Maschine zum seitlichen Planieren von Bausteinen - die bekanntlich an ihrer zu bearbeitenden Seitenfläche ein Höhenmaß haben, welches ein Mehrfaches des durch die Fliesen- oder Schindel-Dicke bestimmten Höhenmaßes beträgt - werden die Förderelemente des maschineneigenen Transportsystems von flexiblen Endlosbändem gebildet, die mit ihren auf das zu bearbeitende Objekt einwirkenden Trum sowohl eine exakte Seitenlage als auch eine exakte Planlage erreichen.In the machine according to the invention for the lateral leveling of building blocks - which are known to have a height dimension on their side surface to be machined, which is a multiple of the height dimension determined by the tile or shingle thickness - the conveyor elements of the machine's own transport system are formed by flexible endless belts, which with their strand acting on the object to be machined are both one achieve exact lateral position as well as an exact flat position.

Das maschineneigene Transportsystem bewirkt eine einwandfreie Baustein-Einspannung mit funktionsmäßig lagestabilen, d. h. in der Relativlage zum Baustein unverrückbaren, Stützstellen.The machine's own transport system brings about a perfect block clamping with functionally stable position, i. H. in the relative position to the building block, support points.

Die federbelastet gehalterten Keilprofilrollen bewirken eine spielfreie Zentrierung und Band-Seitenführung in demjenigen Bereich, in dem es auf die exakte Transportelement-Seitenlage ankommt. Im Gegensatz zur Ausführung gemäß US-A-3 741 193 brauchen beim Erfindungsgegenstand die Keilprofilrollen dabei nur die Band-Seitenführung (per Justierung der Band-Keilnuten) durchzuführen.The spring-loaded wedge profile rollers ensure play-free centering and belt side guidance in the area where the exact transport element side position is important. In contrast to the embodiment according to US-A-3 741 193, the spline rollers in the subject matter of the invention only need to carry out the belt side guidance (by adjusting the belt splines).

Die Trag- und Niederhalte-Funktion der Förderelemente wird im maschineneigenen Transportsystem von den Gleitleisten übernommen, über welche die flexiblen Endlosbänder mit ihren Seitenbereichen laufen. Im Gegensatz zur Ausführung gemäß DE-A-41 36 252 wird auch beim Transport schwerer Objekte ein Band-Durchhängen vermieden und eine exakte Höhenlage eines jeden transportierten Bausteins beim Durchlaufen der Planierstation(en) gewährleistet.The carrying and hold-down function of the conveyor elements is carried out in the machine's own transport system by the slide rails, over which the flexible endless belts run with their side areas. In contrast to the version according to DE-A-41 36 252, belt sagging is avoided even when transporting heavy objects and an exact height of each transported building block is ensured when passing through the leveling station (s).

Wie auch aus der Zeichnung zu ersehen ist, werden die seitlich zu planierenden Bausteine allein durch Klemmung fixiert und spurtreu durch die Planierstation geführt.As can also be seen from the drawing, the building blocks to be leveled on the side are fixed by clamping alone and guided through the leveling station in the correct direction.

Der Einsatz von flexiblen Endlosbändern für die Baustein-Einspannung zum Transport durch die Planierstation bzw. Planierstationen führt zu einer wesentlich verschleißärmeren Maschinen-Ausbildung als eine vorbekannte Planiermaschine mit Transportketten und arbeitet außerdem wesentlich leiser.The use of flexible endless belts for building block clamping for transport through the leveling station or leveling stations leads to a much less wear-resistant machine design than a previously known leveling machine with transport chains and also works much more quietly.

Die erfindungsgemäße Maschine kann als Schleifmaschine und/oder Fräsmaschine ausgebildet sein. In bevorzugter Weise ist sie für das seitliche Bearbeiten von getrockneten Ziegelformlingen und/oder gebrannten Ziegeln vorgesehen - selbstverständlich lassen sich auch andere Produkte der Baustoffindustrie, beispielsweise Bimssteine, Feuerfest-Steine (Schamottesteine), Kacheln, damit bearbeiten.The machine according to the invention can be designed as a grinding machine and / or milling machine. It is preferably intended for the lateral processing of dried brick moldings and / or fired bricks - of course, other products of the building materials industry, for example pumice stones, refractory stones (firebricks), tiles, can also be processed with them.

Auf der Zeichnung sind Ausführungsbeispiele der Erfindung schematisch dargestellt und werden im folgenden näher erläutert. Es zeigen:

Fig. 1
eine Seitenansicht einer erfindungsgemäßen Maschine zum seitlichen Bearbeiten von Bausteinen od. dgl., vorzugsweise Schleifmaschine bei der die zu schleifenden Objekte, insbesondere getrocknete Ziegelformlinge oder Ziegel nach seitlicher Ausrichtung zwischen einer Fördereinrichtung und einer Andrückeinrichtung höhenmäßig eingespannt durch mindestens eine Bearbeitungsstation transportiert werden,
Fig. 2
eine Auschnittsdarstellung einer höhenverstellbaren und abgefederten Halterung für die Andrückeinrichtung-Enden,
Fig. 3
eine Seitenansicht eines Bandsystems, welches in der Fördereinrichtung bzw. in der Förder- und Andrückeinrichtung verwendet wird, und
Fig. 4
einen Querschnitt durch dasselbe Bandsystem, wobei eine Einspann-Arbeitsstellung für einen zu planierenden Ziegel(formling) dargestellt ist.
Exemplary embodiments of the invention are shown schematically in the drawing and are explained in more detail below. Show it:
Fig. 1
2 shows a side view of a machine according to the invention for the lateral processing of building blocks or the like, preferably a grinding machine in which the objects to be ground, in particular dried brick moldings or bricks, are transported in height after being aligned laterally between a conveying device and a pressing device, by at least one processing station,
Fig. 2
a sectional view of a height-adjustable and spring-loaded holder for the pressing device ends,
Fig. 3
a side view of a belt system which is used in the conveyor or in the conveyor and pressing device, and
Fig. 4
a cross section through the same belt system, wherein a clamping work position for a brick to be leveled (molding) is shown.

Die erfindungsgemäße Maschine zum seitlichen Bearbeiten von Bausteinen od. dgl. ist vorzugsweise als Schleifmaschine ausgebildet. Das erfindungsgemäße Konzept läßt sich jedoch auch an einer Fräsmaschine verwirklichen. Mit dieser Maschine werden bei der Planziegel-Produktion entweder getrocknete Ziegelformlinge Z oder gebrannte Ziegel Z an mindestens einer Seite planiert. Besonders bevorzugt ist das zweiseitige und somit kalibrierende Bearbeiten.The machine according to the invention for the lateral processing of building blocks or the like is preferably designed as a grinding machine. However, the concept according to the invention can also be implemented on a milling machine. With this machine, either dried brick moldings Z or fired bricks Z are leveled on at least one side during the production of the facing bricks. Two-sided and thus calibrating processing is particularly preferred.

Die erfindungsgemäße Maschine arbeitet im Durchlaufverfahren.The machine according to the invention works in a continuous process.

Sie weist einen von einer Justiervorrichtung J gebildeten Maschineneinlauf auf, welcher die zu bearbeitenden, insbesondere zu schleifenden Objekte (wie Ziegel oder Ziegelformlinge Z) automatisch in eine für die Bearbeitung erforderliche Lage bringt (zentriert).It has a machine inlet formed by an adjusting device J, which automatically brings the objects to be processed, in particular to be ground (such as bricks or brick moldings Z) into a position required for processing (centered).

Die beim Einlauf in das maschineneigene Transportsystem mittig liegend zentrierten Ziegel(formlinge) Z werden von an einem Maschinengestell 1 - mit Basis(element) 1b und beidendigen Ständern 1a - angeordneter Fördereinrichtung 2 und Andrückeinrichtung 3 erfaßt und in justierter Lage höhenmäßig eingespannt sowie in solcher Lage durch mindestens eine Planierstation 4 hindurchbewegt und dabei an mindestens einer Seite, vorzugsweise an beiden Seiten, mittels als Schleifscheibe oder Schleifkopf (ähnlich wie ein Fräskopf ausgebildet) ausgeführten Planierwerkzeugen 5 bearbeitet, insbesondere kalibrierend planiert.The bricks (moldings) Z, which are centered when they enter the machine's own transport system, are gripped by a conveyor 2 and pressing device 3 arranged on a machine frame 1 - with a base (element) 1b and both ends of stands 1a and clamped in height in an adjusted position and in such a position moved through at least one leveling station 4 and processed on at least one side, preferably on both sides, using leveling tools 5 designed as a grinding wheel or grinding head (similar to a milling head), in particular calibrated leveling.

Die Planierwerkzeuge (wie Schleifscheiben oder Fräser) 5 sind mit im wesentlichen ihrer Stirnseite 5a zugeordneten Funktionsflächen versehen. Sie rotieren um eine im wesentlichen horizontale Achse. Ihr Antrieb ist mit 5b beziffert. Die gesamte Funktionseinheit (Scheibe + Antrieb) ist horizontal verschiebbar angeordnet.The leveling tools (such as grinding wheels or milling cutters) 5 are provided with functional surfaces which are essentially assigned to their end face 5a. They rotate around an essentially horizontal axis. Your drive is numbered 5b. The entire functional unit (disc + drive) can be moved horizontally.

Für die Verstellbewegung der Planierwerkzeuge 5 ist eine die automatische Zustellung bewirkende Elektrosteuerung vorhanden - die jedoch nicht näher erläutert wird. In bevorzugter Weise ist eine berührungslos wirkende Meßeinrichtung vorhanden, welche die bearbeitende Stirnseite 5a jedes Planierwerkzeugs 5 erfaßt und deren Signale für eine automatische Planierwerkzeug-Nachführung genutzt werden.For the adjustment movement of the leveling tools 5, an electrical control effecting the automatic infeed is present - but this is not explained in more detail. A non-contact measuring device is preferably present, which detects the machining end face 5a of each leveling tool 5 and whose signals are used for automatic leveling tool tracking.

Um eine exakte seitliche Planierung der durchlaufenden Ziegel(formlinge) Z zu gewährleisten, ist erfindungsgemäß dafür gesorgt, daß die Ziegel(formlinge) Z in ihrer durch die Justiervorrichtung J vorgegebenen seitlichen Relativlage auch während der gesamten Bearbeitung (Schleif- oder Fräsbearbeitung) verharren.In order to ensure an exact lateral leveling of the continuous bricks (shaped articles) Z, the invention ensures that the bricks (shaped articles) Z remain in their lateral relative position specified by the adjusting device J also during the entire machining (grinding or milling).

Das Transportsystem ist von zwei als Förder- und Druckband 2,3 ausgebildeten druckbelasteten endlosen Bändern aus flexiblem Material gebildet, welche in der Seitenlage mittels mindestens einer zentrierenden Keilnut-Keilrippen-Verbindung zwangsgeführt sowie mindestens im Bereich des/der die Bearbeitung durchführenden Planierwerkzeuge(s) 5, insbesondere Schleifscheibe(n), über ein schienen- oder plattenartiges ebenes Widerlager 9 laufen. Das Förderband 2 und das Druckband 3 sind rückseistig zumindest im mittleren Querschnittsbereich mit Keilnuten 7a versehen, in welche Keilprofilrollen 8, als Zentrierrollen, eingreifen. Wie aus der Zeichnung zu ersehen, sind zwei Gleitleisten 9 vorgesehen, welche auf die beiden Seitenbereiche einwirken.The transport system is formed by two pressure-loaded endless belts made of flexible material, designed as a conveyor and pressure belt 2, 3, which are positively guided in the lateral position by means of at least one centering keyway-V-ribbed connection and at least in the area of the processing performing leveling tools (s) 5, in particular grinding wheel (s), run over a rail-like or plate-like flat abutment 9. The conveyor belt 2 and the pressure belt 3 are provided on the back at least in the central cross-sectional area with splines 7a, in which spline rollers 8, as centering rollers, engage. As can be seen from the drawing, two slide strips 9 are provided which act on the two side areas.

Das endlose Bandmaterial ist als sogenanntes Kraftband ausgeführt und weist rückseitig Keilnuten 7a und Keilrippen 7b auf.The endless band material is designed as a so-called force band and has splines 7a and V-ribs 7b on the back.

Die Keilprofilrollen 8 sind abgefedert gelagert. In Fig. 6 und 7 sind die symbolhaft dargestellten Federelemente mit 10 beziffert.The spline rollers 8 are spring loaded. 6 and 7, the spring elements shown symbolically are numbered 10.

In besonders bevorzugter und vorteilhafter Ausführung ist jede Keilprofilrollen-Lagerung mittels eines Federpakets abgefedert und dabei gleichzeitig geführt angeordnet - hierbei werden zusätzliche Führungelemente eingespart.In a particularly preferred and advantageous embodiment, each spline roller bearing is cushioned by means of a spring assembly and is arranged in a guided manner at the same time - this saves additional guide elements.

Die Andrückeinrichtung 3 (insbes. ein sogen. Druckband 3) ist in der Relativlage zum Förderband 2 einstellbar - und dementsprechend höhenverstellbar angeordnet - sowie als Ganzes abgefedert gehaltert.The pressing device 3 (in particular a so-called pressure belt 3) can be adjusted in the position relative to the conveyor belt 2 - and is accordingly arranged in a height-adjustable manner - and is supported in a spring-loaded manner as a whole.

In bevorzugter Weise sind Förderband 2 und Andrück- oder Niederhaltereinrichtung 3 jeweils als komplette "Montageeinheit" lösbar am Maschinengestell 1 oder einem demselben zugeordneten Teil, insbesondere Halter 11. angeordnet. Diese Montageeinheiten sind in Fig. 1 mittels Kreuzschraffur gekennzeichnet. Sie weisen dabei Elemente 15, 16, 17 einer Steckverbindung, nämlich solche zur Justierung/Lagefixierung (Position 15), Arretiermittel 16 (z.B. Schrauben) sowie eine Elektrokupplung 17 auf.In a preferred manner, conveyor belt 2 and pressing or holding-down device 3 are each detachably arranged as a complete “assembly unit” on the machine frame 1 or a part associated therewith, in particular holder 11. These assembly units are marked in FIG. 1 by means of cross hatching. They have elements 15, 16, 17 of a plug connection, namely those for adjustment / position fixing (position 15), locking means 16 (eg screws) and an electric coupling 17.

Bei einer Maschinen-Ausbildung mit einer solchen Fördereinrichtung 2 und Andrückeinrichtung 3 ist die Stillstandszeit bei anfallender Wartungs- und/oder Reparaturarbeit auf ein Minimum reduzierbar, wenn die in der Maschine vorhandener) Einrichtung(en) 2/3 demontiert und durch eine Ersatzeinheit ersetzt wird.In the case of a machine design with such a conveying device 2 and pressing device 3, the downtime in the event of maintenance and / or repair work can be reduced to a minimum if the device (s) present in the machine are dismantled 2/3 and replaced by a replacement unit .

Claims (4)

  1. Machine for the lateral machining of building blocks or the like, in particular dried green bricks or baked bricks, the said machine having the following features:
    a) it has a transport system of its own which grips the building blocks to be machined, after lateral orientation, between a conveyor apparatus (2) and a pressure-applying apparatus (3) and transports them, vertically clamped-in in an adjusted position, through at least one machining station (4),
    b) it has at least one machining station, in particular a planing station (4), with lateral tool arrangement,
    c) the machine's own transport system consists of a conveyor apparatus (2) and a pressure-applying apparatus (3) which is disposed so as to be vertically adjustable in relation to the said conveyor apparatus (2) and is also held, as a whole, in a sprung manner,
    d) the conveyor elements of the transport system which interact with the building block (Z) to be machined are formed by endless belts (7) made of flexible material which are designed as so-called "power belts",
    e) on their reverse side, the endless flexible belts (7) are provided, at least in the central region of their cross-section, with V-grooves (7a),
    f) with their strand which interacts with the building block (Z) to be machined, in particular to be planed, the endless flexible belts (7) run, cross-section-wise,
    a) with the central region, over V-profile rollers (8) which act as centring rollers and forcibly guide the belt (7) in the lateral position and which are mounted in a sprung manner, and
    b) with the two lateral regions, over slide strips (9) which are provided at least in the region of the tool or tools (5) and form supports.
  2. Machine according to claim 1, characterised in that the mounting systems of the V-profile rollers are sprung by means of sets of springs (10).
  3. Machine according to claim 1, characterised in that the conveyor apparatus (2) and the pressure apparatus (3) are, in each case, disposed on the machine stand (1) so as to be removable as a complete assembly unit.
  4. Machine according to claim 3, characterised in that the machining tool or tools (5), including the appertaining drive (b), is/are provided so as to be movable outwards, for maintenance and repair operations, to such an extent that the "pressure belt (2)" assembly unit and the "conveyor belt (3)" assembly unit can each be individually (2/3) or jointly (2+3) detached from the machine stand (1), in particular can be lifted off upwards.
EP95936471A 1994-10-11 1995-10-11 Machine for trimming the sides of building blocks or the like Expired - Lifetime EP0785840B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4436154 1994-10-11
DE4436154A DE4436154C2 (en) 1994-10-11 1994-10-11 Lateral brick (molding) machine
PCT/EP1995/004006 WO1996011084A1 (en) 1994-10-11 1995-10-11 Machine for trimming the sides of building blocks or the like

Publications (2)

Publication Number Publication Date
EP0785840A1 EP0785840A1 (en) 1997-07-30
EP0785840B1 true EP0785840B1 (en) 2000-04-05

Family

ID=6530385

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95936471A Expired - Lifetime EP0785840B1 (en) 1994-10-11 1995-10-11 Machine for trimming the sides of building blocks or the like

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EP (1) EP0785840B1 (en)
AT (1) ATE191384T1 (en)
AU (1) AU3840995A (en)
CZ (1) CZ108097A3 (en)
DE (3) DE4436154C2 (en)
PL (1) PL319729A1 (en)
WO (1) WO1996011084A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ288452B6 (en) * 1996-12-19 2001-06-13 Keller Gmbh Machine for side flushing brickmaker's and refractory products differing in calibrated dimension
DE29701124U1 (en) * 1997-01-23 1997-03-13 Hornitex Werke Gebr. Künnemeyer GmbH & Co KG, 32805 Horn-Bad Meinberg Device for the transport and for an exact positioning of plate-shaped, rectangular workpieces
EP1103360A1 (en) * 1999-11-23 2001-05-30 Guy Van Camp Sawing installation for cutting natural stone
EP1103359A1 (en) * 1999-11-23 2001-05-30 Guy Van Camp Sawing installation for cutting natural stone

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3741193A (en) * 1968-04-08 1973-06-26 Sueur J Le Slate trimming machine
FR2198405A5 (en) * 1972-09-05 1974-03-29 Christensen Diamond Prod Co
DE3219883A1 (en) * 1982-05-27 1983-12-01 Horst 4150 Krefeld Sameith Process for machining the exposed surfaces of concrete slabs as well as device for carrying out this process
DE3941277C2 (en) * 1989-12-14 1997-03-13 Ver Glaswerke Gmbh Device for carrying out a method for processing glass panes within a processing line comprising several successive processing stations
FR2660291A1 (en) * 1990-03-27 1991-10-04 Sietam Ind SYSTEM FOR HANDLING OBJECTS CARRIED ON SLEDGES.
DE9012909U1 (en) * 1990-09-10 1990-11-15 Bison-Werke Bähre & Greten GmbH & Co KG, 3257 Springe Centering device for belt grinding machines
IT1242772B (en) * 1990-11-12 1994-05-17 Dario Toncelli PLANT FOR SIDE CALIBRATION AND POSSIBLE BEVELING OF STONE MATERIAL TILES

Also Published As

Publication number Publication date
AU3840995A (en) 1996-05-02
DE4436154C2 (en) 2001-06-07
DE59508147D1 (en) 2000-05-11
DE4436154C1 (en) 1996-04-11
DE29515887U1 (en) 1996-02-08
CZ108097A3 (en) 1997-09-17
EP0785840A1 (en) 1997-07-30
PL319729A1 (en) 1997-08-18
ATE191384T1 (en) 2000-04-15
WO1996011084A1 (en) 1996-04-18

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