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WO2006006843A1 - Systeme de nettoyage de bande pour ponceuse a bande portable - Google Patents

Systeme de nettoyage de bande pour ponceuse a bande portable Download PDF

Info

Publication number
WO2006006843A1
WO2006006843A1 PCT/NL2005/000459 NL2005000459W WO2006006843A1 WO 2006006843 A1 WO2006006843 A1 WO 2006006843A1 NL 2005000459 W NL2005000459 W NL 2005000459W WO 2006006843 A1 WO2006006843 A1 WO 2006006843A1
Authority
WO
WIPO (PCT)
Prior art keywords
belt
cleaning
cleaning system
holder
cleaning element
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.)
Ceased
Application number
PCT/NL2005/000459
Other languages
English (en)
Inventor
Peter Wanninkhof
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to EP05755679A priority Critical patent/EP1773543A1/fr
Publication of WO2006006843A1 publication Critical patent/WO2006006843A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/10—Devices or means for dressing or conditioning abrasive surfaces of travelling flexible backings coated with abrasives; Cleaning of abrasive belts
    • 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
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/06—Portable grinding machines, e.g. hand-guided; Accessories therefor with abrasive belts, e.g. with endless travelling belts; Accessories therefor

Definitions

  • the present invention relates to a belt cleaning system for a portable belt sander which is provided with a drivable sanding belt, comprising a cleaning element, a support surface for supporting the cleaning element, and displacing means for displacing the cleaning element from an inactive to an active position, wherein the cleaning element is in contact with the sanding belt for cleaning.
  • the invention further relates to an assembly of a portable belt sander and a belt cleaning system, as well as to a cleaning element for such a belt cleaning system.
  • the sanding belt of a portable belt sander becomes clogged with debris.
  • the surface thereof can be cleaned using a cleaning block which is usually manufactured from a synthetic or natural rubber. By holding this rubber cleaning block against the surface of the sanding belt while the sanding belt is driven, fouling can be removed from the sanding belt and discharged.
  • a belt cleaning system according to the preamble of claim 1 is known from American patent publication 6,036,589.
  • the support surface of this known belt cleaning system is arranged pivotally relative to the housing of the belt sander.
  • the cleaning block can therefore be pivoted from an inactive to an active position, wherein the cleaning element is in contact with the sanding belt for cleaning.
  • the cleaning block is mounted on the support surface.
  • the replacing of cleaning blocks is time-consuming and relatively expensive. The operation is also unsafe since the block must be pressed by hand close to the drivable sanding belt .
  • the present invention has for its object to provide an improved belt cleaning system of the type described in the introduction.
  • the belt cleaning system is characterized for this purpose in that the support surface is formed by a wall of a holder, wherein the cleaning element is received in the holder in the inactive position.
  • the cleaning element is stored in the holder during use, but also in the inactive situation. For replacement of the cleaning element it can suffice simply to place a new cleaning element in the holder.
  • pressing means are further provided at a distance from the drivable sanding belt for pressing the cleaning element against the sanding belt in the active position. It is hereby not necessary for the hand to come close to the drivable sanding belt during cleaning thereof.
  • the displacing means and the pressing means are formed by a drivable toothed pinion which engages on the cleaning element.
  • the pinion can for instance be manually rotated, whereby the cleaning element in engagement therewith is carried in the direction of the surface of the sanding belt and is also pressed thereagainst when a further rotation force is applied to the pinion.
  • At least two cleaning elements which are in mutual engagement, can be placed at a time in the holder.
  • At least one cleaning element is herein active in cleaning of the sanding belt, while the other cleaning element or the other cleaning elements serves or serve as spare (s) .
  • the cleaning element is preferably further provided on at least a side lying against the support surface with a layer reducing sliding resistance. This facilitates displacement of the cleaning element in the holder to the active position.
  • the cleaning element is preferably manufactured from a synthetic or a natural rubber.
  • the holder can comprise a cover element .
  • coupling means are provided between the cover element and the cleaning block.
  • the cleaning block can hereby be taken out of the holder together with the cover element .
  • indicator means are provided which indicate the degree of wear of the cleaning block.
  • blocking means for blocking the insertion of the cleaning block into the holder when it exhibits a determined degree of wear.
  • the blocking means can be combined with the above mentioned coupling means.
  • the invention further relates to an assembly of a portable belt sander, which is provided with a housing and a drivable sanding belt, and a belt cleaning system as specified above.
  • the belt cleaning system can be connected releasably to the housing as a separate element or form part of the belt sander.
  • the holder of the belt cleaning system is mounted in or on the housing or the holder is formed by the housing.
  • the belt sander preferably further comprises two rollers mounted in the housing which are adapted to guide the sanding belt, wherein the support surface lies at an angle relative to the plane of the sanding belt situated between the two rollers. In advantageous manner a larger area of the cleaning element is brought into contact with the sanding belt for cleaning purposes.
  • the pressing means exert a pressing force on the cleaning element which is in opposite direction to the direction in which the sanding belt runs. Owing to the play of forces on the cleaning element, it will always tend to become detached from the sanding belt when the sanding belt is being driven. The cleaning element will hereby not be in contact unintentionally with the sanding belt and be able to wear away.
  • Figure 1 shows a perspective view of an assembly consisting of a belt cleaning system and a belt sander according to the invention in a first embodiment
  • Figure 2 shows a cross-sectional detail view of the assembly of figure 1
  • Figures 3 and 4 show two different embodiments of a cleaning element for use in the belt cleaning system according to the invention
  • Figure 5 is a perspective view of a further embodiment of the assembly and the belt cleaning element according to the invention
  • Figure 6 shows a front view of yet another embodiment of the assembly and the belt cleaning element according to the invention
  • Figures 7-10 show cross-sections of different embodiments of the assembly according to the invention, wherein the holder comprises a cover element
  • Figure 8 shows an outline of the cover element of Figure 7 as according to arrow VIII in Figure 7,
  • Figure 11 shows a further embodiment of an assembly wherein the holder comprises a cover element
  • Figure 12 is a front view as according to arrow XII in Figure 11.
  • Figures 1 and 2 show a belt cleaning system 1 which forms part of a housing 2 thereof. It is possible instead for the belt cleaning system to be mounted on a belt sander as a separate element or to be connected non-releasably thereto. Holder 8 is however formed by housing 2 in the different embodiments of the figures. The figures further show a roller 3 mounted in housing 2 of the belt sander and a sanding belt 4 guided thereover. The active part of sanding belt 4 is supported by a support structure 5.
  • Belt cleaning system 1 comprises a cleaning block 6, a support surface 7 for supporting the cleaning block, and displacing means for displacing cleaning block 6 from an inactive to an active position, wherein cleaning block 6 is in contact with the sanding belt 4 for cleaning.
  • Support surface 7 is formed by a wall of holder 8, wherein cleaning block 6 is received in the inactive position in holder 8.
  • Reference numeral 9 designates a type of manually driven gear rack mechanism which can press cleaning block 6 in the direction of and against the driven sanding belt 4.
  • Gear rack mechanism 9 consists of a pinion 11 which engages on cleaning block 6, and a control knob 12 which lies in line with the pinion and with which pinion 11 can be rotated.
  • Cleaning blocks 6 shown in figures 3 and 4 are provided on two mutually opposite sides with engaging elements for co-action with the engaging elements of a subsequent cleaning block 6.
  • the figures show two different embodiments of the engaging elements.
  • Cleaning block 6 is further provided on at least its side lying against support surface 7 with a layer 13 reducing sliding resistance (see figure 2) .
  • End side surfaces 10 of cleaning blocks 6 can likewise be provided with a layer reducing sliding resistance when they are in contact with walls of holder 8.
  • Cleaning block 6 is provided on one or more sides with a layer reducing sliding resistance, such as a smooth protective sheet of paper, so as to minimize the sliding resistance with the inner side of the holder during displacement .
  • Figure 5 shows a further embodiment wherein cleaning block 6 is provided with an end stop 14 which cannot pass through the space between pinion 11 and support surface 7.
  • a recess is provided in holder 8 on the side of pinion 11. End stop 14 protrudes through the recess so that at a given moment it comes into contact with pinion 11 and can descend no further into holder 8.
  • cleaning block 6 will have to be removed by hand from holder 8.
  • this embodiment does not operate with successive, smoothly connecting cleaning blocks 6, as shown in figures 1-4, it does have the advantage that cleaning block 6 cannot shoot out from between holder 8 and sanding belt 4.
  • Figure 6 shows an embodiment wherein, using the belt sander, sanding can take place as close as possible to an obstacle 15, cleaning block 6 is supported laterally in stable manner by housing 2 which partly forms holder 8, and wherein sanding belt 4 can be cleaned over the full width by cleaning block 6.
  • Pinion 11 can be placed parallel to the sanding plane or at an angle ⁇ , which is substantially equal to the angle ⁇ which the cleaning block makes with the side of the belt sander. Angles Ot and ⁇ can vary between 0 and 90 ° .
  • Figures 7-11 show different embodiments wherein the holder comprises a cover element 16, 23, 27, 34 for closing the holder. In the first three embodiments coupling means 17, 18, 24, 25, 28, 29 are provided between cover element 16, 23, 27 and cleaning block 19, 22, 26. The coupling- means are provided integrally on the cover element and/or cleaning block.
  • the cleaning block 19, 22, 26 can be removed from the holder in simple manner by taking off and removing the cover element 16, 23, 27.
  • the coupling means consist of arms 17 connected to cover element 16 and provided with protrusions 18 (see also figure 8) .
  • Arms 17 and protrusions 18 co-act with recesses 21 which are arranged in cleaning block 19 and which are each provided with an end stop 20.
  • Protrusions 18 and end stops 20 together form blocking means for blocking the insertion of the cleaning block into the holder when the block displays a determined degree of wear.
  • protrusions 18 of cover element 16 engage with end stops 20 of block 19 the block can be removed from the holder by simply removing cover element 16. Due to the coupling between protrusions 18 and end stops 20 the cleaning block 19 is also carried out of the holder.
  • cleaning block 22 is provided with a resilient part 24 which is connected to cover element 23 by means of a ball joint construction 25.
  • the resilient part 24 makes it possible for block 22 to be carried in the direction of sanding belt 4.
  • the coupling means are formed by a resilient part 28.
  • the resilient part 28 is formed integrally with cover element 27.
  • Cover element 27 is connected to cleaning block 26 by , means of a dovetail joint 29.
  • FIG 11 shows an embodiment wherein a cover element 34 is also provided (see also figure 12) . No coupling means are however provided between this cover element 34 and cleaning block 6.
  • Cleaning block 6 can be removed from the holder by inserting a finger in channel 33 of the holder.
  • a partition wall 35 is situated between channel 33 and the channel in which block 6 is arranged.
  • Partition wall 35 is formed integrally on cover element 34 and supports block 6 in the holder.
  • This embodiment is further provided with a control knob 30 which is rotatable about shaft 31.
  • Shaft 31 is in contact with pinion 32.
  • Shaft 31 has a diameter which is smaller than the diameter of pinion 32.
  • Cleaning block 6 is inserted through a rectangular opening on the outside of housing 2 of the belt sander until it runs up against the pinion 11 which protrudes slightly into holder 8.
  • the support surface 7 supporting cleaning block 6 lies at an angle relative to the surface of sanding belt 4 located between the two rollers (wherein the one roller is not shown in the figures) .
  • Pinion 11 herein presses itself into the elastic plastic or rubber cleaning block 6 and, when rotating, is able to displace cleaning block 6 in up and downward direction, and to allow it to slip when the resistance becomes too great.
  • cleaning block 6 can be moved onto sanding belt 4 using control knob 12. Fouling between the grains of the sanding belt can be removed by pressing cleaning block 6 further onto the then running sanding belt 4. The fouling is removed and discharged.
  • the cleaning block 6 wears and melts until it has reached a minimum length. At this length the pinion 11 no longer drives cleaning block 6.
  • the abraded and fouled material slips under support surface 7 and is discharged on the front side of the belt sander. It is important that the front wall of holder 8 reaches just above sanding belt 4 in order to benefit from cleaning block 6 as long as possible and to prevent too large a piece of cleaning block 6 from slipping away between this wall and sanding belt 4.
  • a similar cleaning block can be placed on top of the abraded cleaning block. This must be pressed inward such that pinion 11 engages thereon. It is possible to continue repeating the replenishing process .
  • the engaging elements herein ensure a stable continuity of cleaning blocks 6 and a smooth or continuous replacement of a worn cleaning block 6 by a new one. In the transition situation pinion 11 engages on both the already worn block and the replacement block. The new block is also able to press the worn block onto the belt, so that the cleaning action is maintained.

Landscapes

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

Abstract

La présente invention concerne un système de nettoyage de bande pour une ponceuse à bande portable pourvue d'une bande de ponçage à entraînement, comprenant un élément de nettoyage, une surface porteuse permettant de maintenir l'élément de nettoyage, et un moyen de déplacement permettant de déplacer l'élément de nettoyage depuis une position inactive vers une position active, dans laquelle l'élément de nettoyage est en contact avec la bande de ponçage pour permettre le nettoyage. La surface porteuse est formée par la paroi d'un support et l'élément de nettoyage est reçu dans le support dans la position inactive.
PCT/NL2005/000459 2004-07-09 2005-06-28 Systeme de nettoyage de bande pour ponceuse a bande portable Ceased WO2006006843A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05755679A EP1773543A1 (fr) 2004-07-09 2005-06-28 Systeme de nettoyage de bande pour ponceuse a bande portable

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1026620A NL1026620C2 (nl) 2004-07-09 2004-07-09 Bandreinigingssysteem voor een draagbare bandschuurmachine.
NL1026620 2004-07-09

Publications (1)

Publication Number Publication Date
WO2006006843A1 true WO2006006843A1 (fr) 2006-01-19

Family

ID=34971016

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2005/000459 Ceased WO2006006843A1 (fr) 2004-07-09 2005-06-28 Systeme de nettoyage de bande pour ponceuse a bande portable

Country Status (5)

Country Link
EP (1) EP1773543A1 (fr)
CN (1) CN1984751A (fr)
NL (1) NL1026620C2 (fr)
RU (1) RU2380213C2 (fr)
WO (1) WO2006006843A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2422929A1 (fr) * 2010-08-27 2012-02-29 Jöst GmbH Dispositif de ponçage pour le ponçage mécanique de lames de rotor pour éoliennes
CN106217193A (zh) * 2016-10-11 2016-12-14 海南中航特玻材料有限公司 浮法玻璃生产线过渡辊和退火窑辊的抛光装置及抛光方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115870838B (zh) * 2023-03-09 2023-05-12 合肥光微光电科技有限公司 一种光学玻璃裁切后智能磨边机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4720939A (en) * 1986-05-23 1988-01-26 Simpson Products, Inc. Wide belt sander cleaning device
DE29606925U1 (de) * 1996-04-17 1996-07-04 Friedr. Aug. Arnz "Flott" GmbH & Co, 42857 Remscheid Bandschleifmaschine mit integriertem Bandreinigungsgerät
US6036589A (en) * 1998-10-27 2000-03-14 Reilly; Cliff Cleaner for a belt sander

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1404307A1 (ru) * 1986-04-03 1988-06-23 Научно-производственное объединение "Атомкотломаш" Устройство дл очистки абразивной ленты

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4720939A (en) * 1986-05-23 1988-01-26 Simpson Products, Inc. Wide belt sander cleaning device
DE29606925U1 (de) * 1996-04-17 1996-07-04 Friedr. Aug. Arnz "Flott" GmbH & Co, 42857 Remscheid Bandschleifmaschine mit integriertem Bandreinigungsgerät
US6036589A (en) * 1998-10-27 2000-03-14 Reilly; Cliff Cleaner for a belt sander

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2422929A1 (fr) * 2010-08-27 2012-02-29 Jöst GmbH Dispositif de ponçage pour le ponçage mécanique de lames de rotor pour éoliennes
WO2012025598A1 (fr) * 2010-08-27 2012-03-01 Jöst Gmbh Dispositif de meulage pour le meulage en machine de pales de rotors pour des installations éoliennes
CN103079760A (zh) * 2010-08-27 2013-05-01 约斯特有限责任公司 用于对用于风能系统的转子叶片进行基于机器的磨削的磨削装置
US8900037B2 (en) 2010-08-27 2014-12-02 Jöst Gmbh Grinding device for machine based grinding of rotor blades for wind energy systems
CN106217193A (zh) * 2016-10-11 2016-12-14 海南中航特玻材料有限公司 浮法玻璃生产线过渡辊和退火窑辊的抛光装置及抛光方法

Also Published As

Publication number Publication date
CN1984751A (zh) 2007-06-20
NL1026620C2 (nl) 2006-01-10
EP1773543A1 (fr) 2007-04-18
RU2380213C2 (ru) 2010-01-27
RU2007104926A (ru) 2008-08-20

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