EP2210706A2 - Device for guiding the belt of a belt grinding machine - Google Patents

Device for guiding the belt of a belt grinding machine Download PDF

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Publication number
EP2210706A2
EP2210706A2 EP10000580A EP10000580A EP2210706A2 EP 2210706 A2 EP2210706 A2 EP 2210706A2 EP 10000580 A EP10000580 A EP 10000580A EP 10000580 A EP10000580 A EP 10000580A EP 2210706 A2 EP2210706 A2 EP 2210706A2
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EP
European Patent Office
Prior art keywords
belt
grinding
bearing
roller
pinion
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.)
Granted
Application number
EP10000580A
Other languages
German (de)
French (fr)
Other versions
EP2210706A3 (en
EP2210706B1 (en
Inventor
Patrik Moser
Walter Geiger
Kay Vonarburg
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.)
Steinemann Technology AG
Original Assignee
Steinemann Technology AG
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 Steinemann Technology AG filed Critical Steinemann Technology AG
Priority to PL10000580T priority Critical patent/PL2210706T3/en
Publication of EP2210706A2 publication Critical patent/EP2210706A2/en
Publication of EP2210706A3 publication Critical patent/EP2210706A3/en
Application granted granted Critical
Publication of EP2210706B1 publication Critical patent/EP2210706B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/18—Accessories
    • B24B21/20—Accessories for controlling or adjusting the tracking or the tension of the grinding belt

Definitions

  • the invention relates to a device for tape guide a belt sander or the like for grinding or calibrating plate-shaped parts u. a.
  • a grinding belt is endlessly arranged around at least two parallel spaced, rotating rollers, one of which is driven.
  • a roller acts as a tension roller.
  • the tension roller performs oscillating angular movements.
  • the oscillation is carried out by means of a double-acting pneumatic cylinder.
  • the control of the cylinder is effected by a way solenoid valve, the band edge is detected by a light sensor, which provides the control signals for the aforementioned solenoid valve.
  • the center position of the oscillating motion must be set manually for each band.
  • the grinding roller can be adjusted by means of lifting device in height to the machine table.
  • a belt sanding device with a pneumatic belt control is from the DE-A-3133084 known.
  • the tension roller is driven by a pneumatic control system comprising a pneumatic cylinder connected to the tension roller, oscillating.
  • the tensioning roller itself is horizontally pivotable about an axially arranged spindle to perform oscillations to control the tape run.
  • a similar solution is in the US3745717 described.
  • a method for tape guide a belt grinding machine according to DE102007012580 in which the position of the grinding belt can be determined in several points and is controlled independently by means of a control loop.
  • a compensating pendulum motion of the tension roller to achieve a uniform belt position around a pivot point in the middle of the tension roller around, but this requires possible countermovements in two directions.
  • the invention is based on the object, a device for tape guide resp.
  • a device for tape guide resp. To provide belt control of a belt grinding machine for grinding or calibrating plate-shaped parts, inter alia, which allows reliable control of an abrasive belt, in particular the tape position on the rollers.
  • the pivot point of the tension roller is located at one end of the roller, so that pendulum movements can be performed around the other end.
  • the homogenization of such oscillations is a pinion gear at the pivotal end of the tension roller.
  • a swinging about a pivot bearing provides over the prior art, the linear displacement of the roller bearing has the advantage of being a rigid, low-vibration and low-maintenance storage.
  • the error of the axis distance during commuting is smaller than the linear variant.
  • this pinion gear is connected to a servomotor.
  • the band movement can be very uniform.
  • Adjustable direction changes and movement quantities can be achieved, as can a stationary belt for processing, for example, high-gloss surfaces.
  • a generic and therefore not explicitly shown belt grinding machine comprises at least one grinding head with a grinding roller 1 and a tensioning roller 2, which are looped by an endlessly rotating grinding belt. Both rolls 1, 2 are received in a frame 3.
  • the tension roller 2 is pivotally mounted about a pivot point in a bearing 4.
  • the pivoting movements of the roller are carried out by means of a pinion drive 5, which is arranged below the other bearing 9 and connected to this bearing 9.
  • the pinion drive 5 comprises a stepper motor 6 with a pinion 7, which engages in a slightly curved rack 8. This allows pivotal movements of the bearing 9 with adjustable direction size and any direction changes.
  • the control signals come from a control unit, which in turn processes signals from a tape position sensor, as described, for. B. in the DE102007012580 is disclosed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The device has a grinding head provided with a grinding roller (1) and a tension roller (2) performing angular motions for obtaining a required position of a grinding belt. A bearing (9) is attached to the tension roller in a floating manner and is connected with a pinion gear. The pinion gear comprises a pinion, which is engaged in a gear rod. The gear rod is connected with the bearing. The grinding belt is clamped between the rollers. The grinding and tension rollers are accommodated in a frame (3). The tension roller is arranged around a rotation point in the bearing.

Description

Die Erfindung betrifft eine Einrichtung zur Bandführung einer Bandschleifmaschine oder dergleichen zum schleifen oder kalibrieren plattenförmiger Teile u. a.The invention relates to a device for tape guide a belt sander or the like for grinding or calibrating plate-shaped parts u. a.

Bandschleifmaschinen sowie Breitbandschleifmaschinen zum schleifen, kalibrieren oder fertig bearbeiten flacher Platten aus Holz oder anderen Werkstoffen sind bekannt. Hierbei ist ein Schleifband endlos umlaufend um mind. zwei parallel beabstandete, drehende Walzen angeordnet, wovon eine angetrieben ist. Eine Walze fungiert als Spannwalze. Um nun ein ablaufen des Schleifbandes von den Walzen zu verhindern, führt die Spannwalze oszillierende Winkelbewegungen aus. Die Oszillation wird mittels eines doppeltwirkenden Pneumatikzylinders ausgeführt. Die Ansteuerung des Zylinders erfolgt durch ein Weg-Magnetventil, Die Bandkante wird durch einen Lichttaster erkannt, welcher die Steuersignale für das erwähnte Magnetventil bereitstellt. Die Mittelposition der oszillierenden Bewegung muss für jedes Band manuell eingestellt werden.
Bei einer Schleifmaschine gemäss EP-A-0133217 kann die Schleifwalze mittels Hubeinrichtung in der Höhe zum Maschinentisch verstellt werden. Eine Bandschleif-vorrichtung mit einer pneumatischen Bandsteuerung ist aus der DE-A-3133084 bekannt. Hierbei ist die Spannwalze durch ein pneumatisches Steuersystem, umfassend einen mit der Spannwalze verbundenen Pneumatikzylinder, oszillierend angetrieben. Die Spannwalze selbst ist um eine achsmittig angeordnete Spindel horizontal schwenkbar um Pendelbewegungen zur Steuerung des Bandlaufs ausführen zu können. Eine ähnliche Lösung ist in der US3745717 beschrieben.
Bekannt ist weiterhin ein Verfahren zur Bandführung einer Bandschleifmaschine gemäss DE102007012580 , bei dem die Position des Schleifbandes in mehreren Punkten bestimmbar ist und mittels eines Regelkreises selbständig geregelt wird.
Nach dem Stand der Technik erfolgt eine ausgleichende Pendelbewegung der Spannwalze zur Erreichung einer gleichmässigen Bandposition um einen Drehpunkt in der Mitte der Spannwalze herum, was aber mögliche Gegenbewegungen in zwei Richtungen erfordert.Belt grinding machines and wide-belt sanding machines for grinding, calibrating or finishing flat plates made of wood or other materials are known. Here, a grinding belt is endlessly arranged around at least two parallel spaced, rotating rollers, one of which is driven. A roller acts as a tension roller. In order to prevent running of the grinding belt from the rollers, the tension roller performs oscillating angular movements. The oscillation is carried out by means of a double-acting pneumatic cylinder. The control of the cylinder is effected by a way solenoid valve, the band edge is detected by a light sensor, which provides the control signals for the aforementioned solenoid valve. The center position of the oscillating motion must be set manually for each band.
In a grinding machine according to EP-A-0133217 the grinding roller can be adjusted by means of lifting device in height to the machine table. A belt sanding device with a pneumatic belt control is from the DE-A-3133084 known. Here, the tension roller is driven by a pneumatic control system comprising a pneumatic cylinder connected to the tension roller, oscillating. The tensioning roller itself is horizontally pivotable about an axially arranged spindle to perform oscillations to control the tape run. A similar solution is in the US3745717 described.
Also known is a method for tape guide a belt grinding machine according to DE102007012580 , in which the position of the grinding belt can be determined in several points and is controlled independently by means of a control loop.
In the prior art, a compensating pendulum motion of the tension roller to achieve a uniform belt position around a pivot point in the middle of the tension roller around, but this requires possible countermovements in two directions.

Der Erfindung liegt nun die Aufgabe zugrunde, eine Einrichtung zur Bandführung resp. Bandsteuerung einer Bandschleifmaschine zum schleifen oder kalibrieren plattenförmiger Teile u. a. zu schaffen, die eine zuverlässige Steuerung eines Schleifbandes, insbesondere der Bandposition auf den Walzen ermöglicht.
Der Drehpunkt der Spannwalze befindet sich an einem Walzenende, sodass um das andere Ende herum Pendelbewegungen ausgeführt werden können. Der Vergleichmässigung solcher Pendelbewegungen dient ein Ritzelgetriebe am schwenkbaren Ende der Spannwalze. Eine, um einen Drehpunkt pendelnde Lagerung bietet gegenüber dem Stand der Technik der linearen Verschiebung der Walzenlagerung den Vorteil, eine steife, schwingungsarme und wartungsarme Lagerung zu sein. Zudem ist der Fehler der Achsdistanz während dem Pendeln kleiner als der linearen Variante.
Bevorzugt ist dieses Ritzelgetriebe mit einem Stellmotor verbunden. Die Bandbewegung kann sehr gleichmässig erfolgen.The invention is based on the object, a device for tape guide resp. To provide belt control of a belt grinding machine for grinding or calibrating plate-shaped parts, inter alia, which allows reliable control of an abrasive belt, in particular the tape position on the rollers.
The pivot point of the tension roller is located at one end of the roller, so that pendulum movements can be performed around the other end. The homogenization of such oscillations is a pinion gear at the pivotal end of the tension roller. A swinging about a pivot bearing provides over the prior art, the linear displacement of the roller bearing has the advantage of being a rigid, low-vibration and low-maintenance storage. In addition, the error of the axis distance during commuting is smaller than the linear variant.
Preferably, this pinion gear is connected to a servomotor. The band movement can be very uniform.

Erzielbar sind einstellbare Richtungswechsel und Bewegungsgrössen, ebenso wie ein still stehendes Band zur Bearbeitung von beispielsweise Hochglanzobefflächen.Adjustable direction changes and movement quantities can be achieved, as can a stationary belt for processing, for example, high-gloss surfaces.

Die Erfindung wird nachfolgend in einem Ausführungsbeispiel anhand einer Zeichnung näher beschrieben. In der Zeichnung zeigen die

Fig. 1:
eine Walzenanordnung
Fig. 2:
einen Schwenkantrieb.
The invention will be described below in an embodiment with reference to a drawing. In the drawing show the
Fig. 1:
a roller arrangement
Fig. 2:
a rotary actuator.

Eine gattungsgemässe und daher nicht explizit dargestellte Bandschleifmaschine umfasst mindestens einen Schleifkopf mit einer Schleifwalze 1 und einer Spannwalze 2, die von einem endlos umlaufenden Schleifband umschlungen sind. Beide Walzen 1, 2 sind in einem Rahmen 3 aufgenommen. Die Spannwalze 2 ist um einen Drehpunkt in einem Lager 4 schwenkbeweglich angeordnet. Die Schwenkbewegungen der Walze werden mittels eines Ritzelantriebes 5 ausgeführt, der unterhalb des anderen Lagers 9 angeordnet und mit diesem Lager 9 verbunden ist. Der Ritzelantrieb 5 umfasst einen Schrittmotor 6 mit einem Ritzel 7, welches in eine leicht gebogene Zahnstange 8 eingreift. Dies ermöglicht Schwenkbewegungen des Lagers 9 mit einstellbarer Richtungsgrösse und beliebige Richtungswechsel. Die Steuersignale kommen von einer Steuereinheit, die wiederum Signale eines Bandpositionssensors verarbeitet, wie er z. B. in der DE102007012580 offenbart ist.A generic and therefore not explicitly shown belt grinding machine comprises at least one grinding head with a grinding roller 1 and a tensioning roller 2, which are looped by an endlessly rotating grinding belt. Both rolls 1, 2 are received in a frame 3. The tension roller 2 is pivotally mounted about a pivot point in a bearing 4. The pivoting movements of the roller are carried out by means of a pinion drive 5, which is arranged below the other bearing 9 and connected to this bearing 9. The pinion drive 5 comprises a stepper motor 6 with a pinion 7, which engages in a slightly curved rack 8. This allows pivotal movements of the bearing 9 with adjustable direction size and any direction changes. The control signals come from a control unit, which in turn processes signals from a tape position sensor, as described, for. B. in the DE102007012580 is disclosed.

Bezugszeichenreference numeral

11
Schleifwalzegrinding roll
22
Spannwalzetension roller
33
Rahmenframe
44
Lagercamp
55
Ritzelantriebpinion drive
66
Schrittmotorstepper motor
77
Ritzelpinion
88th
Zahnstangerack
99
Lagercamp

Claims (3)

Einrichtung zur Bandführung einer Bandschleifmaschine oder dergleichen zum schleifen oder kalibrieren plattenförmiger Teile u. a. mittels eines, zwischen zwei Walzen gespannten und endlos umlaufenden Schleifbandes, wobei eine Spannwalze oszillierende Winkelbewegungen zur Erreichung einer geforderten Lage des Schleifbandes ausführen kann,
dadurch gekennzeichnet, dass ein Lager (9) der Spannwalze (2) schwimmend angeordnet ist und mit einem Ritzelantrieb (5) verbunden istDevice for guiding the belt of a belt grinding machine or the like for grinding or calibrating plate-shaped parts, inter alia, by means of a sanding belt tensioned between two rollers and endlessly circulating, wherein a tensioning roller can perform oscillating angular movements to achieve a required position of the sanding belt,
characterized in that a bearing (9) of the tensioning roller (2) is arranged floating and is connected to a pinion drive (5) Einrichtung nach Anspruch 1, dadurch gekennzeichnet, dass der Ritzelantrieb (5) ein Ritzel (7) umfasst, dass in eine Zahnstange (8) eingreift, die mit dem Lager (9) verbunden ist.Device according to claim 1, characterized in that the pinion drive (5) comprises a pinion (7) that engages in a rack (8) which is connected to the bearing (9). Einrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Schleifband zwischen drei Walzen gespannt ist.Device according to claim 1 or 2, characterized in that the sanding belt is stretched between three rollers.
EP10000580.0A 2009-01-22 2010-01-21 Device for guiding the belt of a belt grinding machine Not-in-force EP2210706B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10000580T PL2210706T3 (en) 2009-01-22 2010-01-21 Device for guiding the belt of a belt grinding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH00097/09A CH700304A2 (en) 2009-01-22 2009-01-22 Device for tape guide a belt sander.

Publications (3)

Publication Number Publication Date
EP2210706A2 true EP2210706A2 (en) 2010-07-28
EP2210706A3 EP2210706A3 (en) 2013-04-10
EP2210706B1 EP2210706B1 (en) 2014-03-12

Family

ID=42104551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10000580.0A Not-in-force EP2210706B1 (en) 2009-01-22 2010-01-21 Device for guiding the belt of a belt grinding machine

Country Status (3)

Country Link
EP (1) EP2210706B1 (en)
CH (1) CH700304A2 (en)
PL (1) PL2210706T3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102848290A (en) * 2012-09-07 2013-01-02 陈美青 Adjusting device for driven wheel of vertical environment-friendly belt sander
CN109176254A (en) * 2018-11-07 2019-01-11 江西英硕智能科技有限公司 A kind of automatic sander
CN109590865A (en) * 2019-01-03 2019-04-09 重庆大学 A kind of curved surface precision abrasive belt grinding head
DE102018114447A1 (en) * 2018-06-15 2019-12-19 Shl Ag Device and method for grinding and / or polishing workpieces

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109848804B (en) * 2019-03-13 2020-11-20 安徽鑫艺达抛光机械股份有限公司 Floating grinding head for flat plate grinding machine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3745717A (en) 1971-02-17 1973-07-17 C Robinson Fluidic circuit control for centering sanding belt on a belt sander
DE3133084A1 (en) 1980-09-09 1982-06-03 Machinefabriek A. van der Linden B.V., 4462 Goes Belt-type workpiece grinding-sanding mechanism
EP0133217A2 (en) 1983-07-22 1985-02-20 Paul Ernst Sanding machine with a sanding roll adjustable in height with respect to the work bench
DE102007012580A1 (en) 2007-03-13 2008-09-18 Steinemann Technology Ag Method for guiding the tape of a belt grinding machine

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2709792A1 (en) * 1977-03-07 1978-09-14 Wehner Kg Broad belt grinding machine - has control roller to prevent lateral movement of belt by use of pneumatic stop

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3745717A (en) 1971-02-17 1973-07-17 C Robinson Fluidic circuit control for centering sanding belt on a belt sander
DE3133084A1 (en) 1980-09-09 1982-06-03 Machinefabriek A. van der Linden B.V., 4462 Goes Belt-type workpiece grinding-sanding mechanism
EP0133217A2 (en) 1983-07-22 1985-02-20 Paul Ernst Sanding machine with a sanding roll adjustable in height with respect to the work bench
DE102007012580A1 (en) 2007-03-13 2008-09-18 Steinemann Technology Ag Method for guiding the tape of a belt grinding machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102848290A (en) * 2012-09-07 2013-01-02 陈美青 Adjusting device for driven wheel of vertical environment-friendly belt sander
CN102848290B (en) * 2012-09-07 2015-07-15 陈美青 Adjusting device for driven wheel of vertical environment-friendly belt sander
DE102018114447A1 (en) * 2018-06-15 2019-12-19 Shl Ag Device and method for grinding and / or polishing workpieces
CN109176254A (en) * 2018-11-07 2019-01-11 江西英硕智能科技有限公司 A kind of automatic sander
CN109590865A (en) * 2019-01-03 2019-04-09 重庆大学 A kind of curved surface precision abrasive belt grinding head

Also Published As

Publication number Publication date
EP2210706A3 (en) 2013-04-10
EP2210706B1 (en) 2014-03-12
PL2210706T3 (en) 2014-08-29
CH700304A2 (en) 2010-07-30

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