DE3517677A1 - Dust-removal apparatus for grinding machines - Google Patents

Dust-removal apparatus for grinding machines

Info

Publication number
DE3517677A1
DE3517677A1 DE19853517677 DE3517677A DE3517677A1 DE 3517677 A1 DE3517677 A1 DE 3517677A1 DE 19853517677 DE19853517677 DE 19853517677 DE 3517677 A DE3517677 A DE 3517677A DE 3517677 A1 DE3517677 A1 DE 3517677A1
Authority
DE
Germany
Prior art keywords
dust
grinding
face
nozzle
air
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.)
Withdrawn
Application number
DE19853517677
Other languages
German (de)
Inventor
Pentti Loviisa Hapiseva
Reijo Valkolampi Kärppä
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Repola Oy
Original Assignee
Rauma Repola Oy
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rauma Repola Oy filed Critical Rauma Repola Oy
Publication of DE3517677A1 publication Critical patent/DE3517677A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B55/00Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/06Dust extraction equipment on grinding or polishing machines
    • B24B55/08Dust extraction equipment on grinding or polishing machines specially designed for belt grinding machines

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

Dust-removal apparatus for grinding machines, in which the dust suction nozzle (4) in the vicinity of the grinding point is arranged substantially in the direction in which the jet of dust occurring during grinding is directed, and which apparatus is provided with a supply air duct (8). The problem with known dust-removal apparatuses is the great intake-air and power requirement, since dust is prevented from escaping into the air in the room by very powerful suction intake. In addition, the known suction apparatuses do not remove the dust collecting on the grinding face and impairing the grinding properties of the face. With a dust-removal apparatus corresponding to the invention, these problems are solved by there being arranged between the supply air duct (8) and the grinding face (2) of the grinding machine a blowing nozzle (7), which is directed at the face (2) in such a way that the blow of air coming from it prevents the grinding dust escaping between the nozzle (7) and the face (2), and which at the same time cleans effectively the surface of the abrasive belt. <IMAGE>

Description

ENTSTAUBUNGSVORRICHTUNG FÜR SCHLEIFMASCHINENDUST COLLECTOR FOR GRINDING MACHINES

Den Gegenstand dieser Erfindung bildet eine Entstaubungsvorrichtung Çur Schleifmaschinen, in der die StaubsaugdUse in der Nähe der Schleifstelle wesentlich in der Richtung angeordnet ist, in die der beim Schleifen entstehende Staubstrahl sich richtet, und welche Vorrichtung mit einem Zuluftkanal versehen ist.The subject of this invention is a dedusting device ÇOn grinding machines, in which the vacuum cleaner is essential in the vicinity of the grinding point is arranged in the direction in which the dust jet produced during grinding is directed, and which device is provided with a supply air duct.

Beim maschinellen Schleifen einer Holzspanplatte oder eines entsprechenden Materials entsteht sehr viel feiner Staub, dessen wirksames Entfernen immer noch ein ziemliches Problem ist, denn wegen der grossen Luftmenge ist der Leistungsbedarf von Ansaugvorrichtungen sehr hoch, und trotzdem ist die Entstaubung nicht vollständig. Ausserdem setzt sich auf dem Band der Bandschleifmaschine viel Staub fest, was die Schleifeigenschaften des Bandes erheblich verschlechtert.When machine sanding a chipboard or a similar one Material creates a lot of fine dust, which is still effectively removed is quite a problem, because because of the large amount of air, the power requirement is suction devices very high, and yet the dedusting is not complete. In addition, a lot of dust settles on the belt of the belt grinder, which the The abrasive properties of the belt are significantly impaired.

Der Zweck dieser Erfindung ist, eine Entstaubungsvorrichtung zu bilden, die mit den obenerwähnten Nachteilen nicht verbunden ist und mit deren Hilfe die Luftmenge der Ansaugvorrichtung im Vergleich mit den heute benutzten Luftmengen sogar auf weniger als die Hälfte reduziert werden kann. Eine der Erfindung entsprechende Entstaubungsvorrichtung fUr Schleifmaschinen ist dadurch gekennzeichnet, dass auf die Schleiffläche der Schleifmaschine eine Blasdüse so gerichtet ist, dass die aus ihr kommende Gebläseluft den Austritt des Schleifstaubs zwischen der Düse und der Fläche verhindert. Dadurch wird sichergestellt, dass all der Staub in die Ansaugvorrichtung kommt. Dabei ist es möglich, die Luftmenge erheblich zu reduzieren, mit der heutigen Situation verglichen sogar auf weniger als die Hälfte. Durch die Reduzierung der Ansaugluftmenge werden ausserdem beachtliche Energieeinsparungen erzielt.The purpose of this invention is to form a dust collector, which is not associated with the disadvantages mentioned above and with the help of which the Air volume of the suction device compared to the air volume used today can even be reduced to less than half. One according to the invention Dedusting device for grinding machines is characterized in that on the grinding surface of the grinding machine has a blower nozzle directed so that the off your incoming blower air the exit of the grinding dust between the nozzle and the Area prevented. This will ensure that all of the dust gets into the suction device comes. It is possible to significantly reduce the amount of air with today's Situation even compared to less than half. By reducing the In addition, considerable energy savings are achieved.

Eine günstige Anwendungsform der Erfindung ist dadurch gekennzeichnet, dass die Geschwindigkeit der Gebläseluft so hoch ausgelegt ist, dass sie die Schleiffläche von allem losen Material, wie z.B. Staub, reinigt. Der Leistungsbedarf des Gebläses ist im Vergleich mit dem der Ansaugvorrichtung gering, weil die Querfläche der Blasdüse erheblich kleiner ist als die der Ansaugvorrichtung. Das ermöglicht die Anwendung hoher Blasgeschwindigkeiten.A favorable form of application of the invention is characterized in that that the speed of the blower air is designed so high that it touches the grinding surface removes all loose material such as dust. The power requirement of the blower is small in comparison with that of the suction device because of the transverse area of the blowing nozzle is considerably smaller than that of the suction device. That makes the application possible high blowing speeds.

Die Erfindung wird im folgenden anhand eines Beispiels erläutert, indem auf die beigefügte Zeichnung hingewiesen wird, wo die Figur den Querschnitt eines Teiles einer Bandschleifmaschine sowie den Querschnitt einer an ihr angeschlossenen, der Erfindung entsprechenden Entstaubungsvorrichtung darstellt.The invention is explained below using an example, by referring to the accompanying drawing where the figure shows the cross-section of a part of a belt grinder as well as the cross-section of one connected to it, represents the invention corresponding dedusting device.

In der Figur ist ein Teil einer Bandschleifmaschine dargestellt, der aus einer rotierenden Trommel 1 und einem um sie montierten Schleifband 2 besteht. Unter der Trommel und dem Schleifband ist der zu schleifende Gegenstand 3, z.B. eine Holzspanplatte. Der beim Schleifen entstehende Staub richtet sich in den Kanal 4, der mit dem Ansaugkanal 5 verbunden ist, in den der grösste Teil des Staubs kommt. Ein wie grosser Teil des Staubs direkt in den Ansaugkanal kommt, hängt von der Ansaugleistung ab. In einer der Erfindung entsprechenden Vorrichtung ist die Ansaugluftmenge absichtlich sehr klein, wie schon erwähnt sogar weniger als die Hälfte der gewöhnlichen Menge. Aus diesem Grund will ein Teil des Staubs auf dem Schleifband festgesetzt oder in seiner unmittelbaren Nähe aufwärts gehen, ohne in den Entstaubungskanal zu kommen. Um das zu verhindern ist die Vorrichtung mit einem Gebläse 6 versehen, das durch die Düse 7 Luft auf das Schleifband bläst. Zwischen der Ddse und dem Schleifband entsteht dabei ein als Abdichtung wirkender Luftstrahl. Die Geschwindigkeit des Luftstrahls kann sogar 100 m/sek. sein.In the figure, part of a belt grinder is shown, the consists of a rotating drum 1 and an abrasive belt 2 mounted around it. Under the drum and the sanding belt is the object 3 to be sanded, e.g. a chipboard. The dust created during grinding is directed into the sewer 4, which is connected to the suction channel 5, into which most of the dust comes. How large a part of the dust gets directly into the suction channel depends on the suction power away. In a device according to the invention, the amount of intake air is intentional very small, as already mentioned, even less than half the usual amount. Because of this, some of the dust wants to get stuck on or in the sanding belt go up to its immediate vicinity without entering the dedusting duct. In order to prevent this, the device is provided with a fan 6, which by the nozzle 7 blows air onto the sanding belt. Between the nozzle and the sanding belt This creates an air jet that acts as a seal. The speed of the Air jet can even 100 m / sec. be.

Wenn der Luftstrahl das SchLeifband trifft, werden die sich auf ihm festgesetzten Staubpartikeln sehr effektiv gelöst, von denen ein Teil aufwärts und ein Teil abwärts in Richtung auf die Ansaugvorrichtung geht. Um das Entweichen des aufwärtsgehenden Staubs zu verhindern, ist der Zulaufkanal 8 der in der Ansaugvorrichtung erforderlichen Zuluft so angeordnet, dass der Staub in den genannten Kanal kommt und in die Ansaugvorrichtung geführt wird.When the air jet hits the sanding belt, it will be on it fixed dust particles very effectively solved, some of which upwards and part goes down towards the aspirator. To the escape of the To prevent dust from rising upwards, the inlet duct 8 is the one in the suction device The necessary supply air is arranged in such a way that the dust enters the said duct and is fed into the suction device.

Einem Fachmann der Branche ist es klar, dass sich die Erfindung nicht auf das obenangeführte Anwendungsbeispiel beschränkt, sondern im Rahmen der nachstehenden Patentansprüche variiert werden kann.It is clear to a person skilled in the art that the invention is not limited to the above application example, but within the scope of the following Claims can be varied.

Claims (2)

Entstaubungsvorrichtung für Schlei fmaschinen PATENTANSPRÜCHE 1. Entstaubungsvorrichtung ftir Schleif~aschìnen, in der die Staubsaugdüse (4) in der Nähe der Schleifstelle wesentlich in der Richtung angeordnet ist, in die der beim Schleifen entstehende Staubstrahl sich richtet, und welche Vorrichtung mit einem Zuluftkanal (8) versehen ist, dadurch g e k e n n z e i c h n e t, dass auf die Schleiffläche (2) der Schleifmaschine eine Blasdüse (7) so gerichtet ist, dass die aus ihr kommende Gebläseluft den Austritt des Schleifstaubs zwischen der Düse (7) und der Fläche (2) verhindert. Dedusting device for grinding machines PATENT CLAIMS 1. Dedusting device for grinding ashes, in which the vacuum nozzle (4) is in the Near the grinding point is arranged essentially in the direction in which the when Sanding resulting dust jet is directed, and what device with a Supply air duct (8) is provided, thereby indicating that on the Grinding surface (2) of the grinding machine a blower nozzle (7) is directed so that the the blown air coming from it allows the sanding dust to exit between the nozzle (7) and the surface (2) prevented. 2. Vorrichtung nach dem Patentanspruch 1, dadurch g e k e n n z e i c h n e t , dass die Geschwindigkeit der Gebläseluft so hoch ausgelegt ist, dass sie die Schleiffläche von allem losen Material, wie z.B. Staub, reinigt.2. Device according to claim 1, characterized in that g e k e n n z e i n e t that the speed of the blower air is designed to be so high that it cleans the sanding surface of all loose material such as dust.
DE19853517677 1984-06-20 1985-05-15 Dust-removal apparatus for grinding machines Withdrawn DE3517677A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI842504A FI71250C (en) 1984-06-20 1984-06-20 DAMMAVSUGNINGSANORDNING FOER SLIPMASKIN

Publications (1)

Publication Number Publication Date
DE3517677A1 true DE3517677A1 (en) 1986-01-02

Family

ID=8519280

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853517677 Withdrawn DE3517677A1 (en) 1984-06-20 1985-05-15 Dust-removal apparatus for grinding machines

Country Status (3)

Country Link
CH (1) CH668213A5 (en)
DE (1) DE3517677A1 (en)
FI (1) FI71250C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4986703A (en) * 1989-05-01 1991-01-22 The United States Of America As Represented By The Department Of Health And Human Services Auxiliary control technology for routers
DE29609533U1 (en) * 1996-05-30 1996-12-12 Faller jun., Alexander, Dipl.-Wirtsch.-Ing. (FH), 84061 Ergoldsbach Face brick belt grinding machine
RU2578330C2 (en) * 2010-07-27 2016-03-27 Арева Нс Device for feed, direction and removal of cylindrical parts such as nuclear fuel pellets, particularly, at centreless grinder
DE102017117715A1 (en) * 2017-08-04 2019-02-07 Homag Gmbh Extraction device with optimized dust extraction
WO2022269307A1 (en) * 2021-06-25 2022-12-29 Kündig Ag Cleaning the abrasive belt by blowing it off by means of an air knife
EP4140643A1 (en) 2021-08-31 2023-03-01 Karl Heesemann Maschinenfabrik GmbH & Co. KG Dust removal device, grinding machine and method for removing dust from a workpiece

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4986703A (en) * 1989-05-01 1991-01-22 The United States Of America As Represented By The Department Of Health And Human Services Auxiliary control technology for routers
DE29609533U1 (en) * 1996-05-30 1996-12-12 Faller jun., Alexander, Dipl.-Wirtsch.-Ing. (FH), 84061 Ergoldsbach Face brick belt grinding machine
RU2578330C2 (en) * 2010-07-27 2016-03-27 Арева Нс Device for feed, direction and removal of cylindrical parts such as nuclear fuel pellets, particularly, at centreless grinder
DE102017117715A1 (en) * 2017-08-04 2019-02-07 Homag Gmbh Extraction device with optimized dust extraction
WO2022269307A1 (en) * 2021-06-25 2022-12-29 Kündig Ag Cleaning the abrasive belt by blowing it off by means of an air knife
EP4140643A1 (en) 2021-08-31 2023-03-01 Karl Heesemann Maschinenfabrik GmbH & Co. KG Dust removal device, grinding machine and method for removing dust from a workpiece

Also Published As

Publication number Publication date
FI842504A0 (en) 1984-06-20
FI71250C (en) 1986-12-19
FI71250B (en) 1986-09-09
CH668213A5 (en) 1988-12-15
FI842504A (en) 1985-12-21

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