EP0399155A1 - Machine à meuler à bande - Google Patents

Machine à meuler à bande Download PDF

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Publication number
EP0399155A1
EP0399155A1 EP90104263A EP90104263A EP0399155A1 EP 0399155 A1 EP0399155 A1 EP 0399155A1 EP 90104263 A EP90104263 A EP 90104263A EP 90104263 A EP90104263 A EP 90104263A EP 0399155 A1 EP0399155 A1 EP 0399155A1
Authority
EP
European Patent Office
Prior art keywords
belt
collecting chamber
grinding
shaft
grinding machine
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
EP90104263A
Other languages
German (de)
English (en)
Other versions
EP0399155B1 (fr
Inventor
Manfred Bauer
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.)
BAUGERAETE-UNION GMBH & CO., MASCHINENHANDELS KG
SUEDHARZER MASCHINENBAU GMBH
Original Assignee
Baugerate-Union & Co Maschinenhandels KG GmbH
Suedharzer Maschinenbau 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 Baugerate-Union & Co Maschinenhandels KG GmbH, Suedharzer Maschinenbau GmbH filed Critical Baugerate-Union & Co Maschinenhandels KG GmbH
Publication of EP0399155A1 publication Critical patent/EP0399155A1/fr
Application granted granted Critical
Publication of EP0399155B1 publication Critical patent/EP0399155B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B24B55/00—Safety 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
    • B24B55/06—Dust extraction equipment on grinding or polishing machines
    • B24B55/08—Dust extraction equipment on grinding or polishing machines specially designed for belt grinding machines

Definitions

  • the invention relates to a belt sander of the type specified in the preamble of claim 1.
  • a collecting chamber open to the sanding belt is provided in the capsule housing below the access opening provided in the work area.
  • the base of the capsule housing on which the grinding dust settles can also be used to collect the grinding dust.
  • the disadvantage here is that during operation a large part of the grinding dust is whirled out of the collecting chamber again by the air flow and flies around in the capsule housing. The whirled up grinding dust tends to attach itself to the bearings of the rollers and to the rollers inside. This can lead to considerable grinding dust accumulation on the rollers and unbalance, which can result in bearing damage.
  • a vacuum source can be connected to the capsule housing. The effect of the suction is limited, however, because the grinding dust is still fixed inside the capsule housing and on the rollers.
  • the invention has for its object to provide a belt grinder of the type mentioned, in which malfunctions due to the grinding dust are avoided.
  • the air flow occurring during operation is used to convey the grinding dust that arises through the inlet opening into the collecting chamber.
  • the top wall prevents the sanding dust in the collecting chamber from penetrating past the sanding belt or the lower run of the sanding belt loop to the rollers and from settling there and in the capsule housing in an undesirable manner.
  • the inlet opening nestled on the roll prevents sanding dust to a significant degree from the inlet can sneak past the opening.
  • the top wall of the collecting chamber running below the lower run which on the one hand prevents the grinding dust from whirling out, on the other hand forms an effective shield in the area in which the grinding dust tries to bypass the inlet opening to the collecting chamber.
  • the rollers run with the sanding belt in the capsule housing practically unaffected by the sanding dust. Bearing damage from unbalance caused by adhering grinding dust is avoided. The functionality and service life of the belt grinder are increased.
  • the embodiment of claim 2 is expedient because the elongated shaft has a large grinding dust holding capacity and only requires a small overall height.
  • the elongated shaft also effectively shields the lower run of the sanding belt loop so that no sanding dust is carried away and gets to the rollers.
  • the embodiment of claim 3 is also important because the nozzle channel is used to effectively remove the grinding dust with the air flow generated by the running grinding belt and the rollers.
  • the grinding dust travels solely under the influence of the flow, so that the collecting chamber has a large absorption capacity.
  • the nozzle effect in the shaft is increased in the embodiment according to claim 4.
  • a lot of sanding dust can be accommodated in the rear part of the gradually widening shaft without the inlet opening being closed.
  • the most reliable way of getting the grinding dust into the chute-like collecting chamber is if the edge of the collecting chamber adjacent to the roller is designed in a cutting-like manner, because the cutting-like edge favors the formation of a largely laminar flow into the collecting chamber without flow obstacles and also keeps the gap to the grinding belt as small as possible , so that grinding dust only passes through to a negligible extent.
  • the measure according to claim 7 is also advantageous because the ears prevent the grinding dust from flowing sideways past the inlet opening.
  • the training creates a safe entry opening into which the dust is virtually sucked in.
  • a suction fan is connected to the collecting chamber, which promotes the removal of the finest dust particles.
  • the embodiment according to claim 9 is also important because the full collection chamber can be easily emptied without the contents being spilled.
  • this bracket allows easy pulling out, which can be designed both backwards and forwards.
  • the bottom front part can be folded down, because the foldable front part not only enables the collection chamber to be pulled out easily, but also allows access from the front into the collection chamber when the inlet opening is moved.
  • the sanding dust can be relieved more easily when the front part of the floor is folded down.
  • a belt grinder 1 contains a roller 2 which is fastened on a drive shaft 4 with a wedge 5 and which is connected to a drive 3 indicated by a broken line.
  • a second roller 6 is mounted parallel to the roller 2 at a distance on an axis 7.
  • the rollers 2, 6 are wrapped in a loop 8 of an abrasive belt so that the two strands 8a, 8b run approximately horizontally.
  • a tensioning device (not shown) for the loop 8 can be provided between the two rollers 2, 6. It is also conceivable to apply the roller 6 or the roller 2 by means of a tensioning device, so that the loop is always tensioned.
  • Each roller 2, 6 has a hub part 2a, 6a, which is mounted on the shaft 4 or the axis 7, and a running ring 2b or 6b, on which the grinding belt loop 8 rests.
  • the hub part is connected to the tread by a web or spokes.
  • the two rollers 2, 6 are accommodated in a capsule housing 9, consisting of an upper part 9a and a lower part 9b, in accordance with the safety regulations.
  • the capsule housing 9 has an access opening 29 in the working area, in front of which a grinding block 30 is expediently attached.
  • the parting line of the capsule housing 9 is indicated by 10.
  • a collecting chamber 11 is attached, which is designed as an elongated shaft.
  • the collecting chamber 11 is suspended with a rear, hook-shaped holding part 12 on a holding part 13 of the lower part 9b.
  • the collecting chamber 11 hangs on a hook-shaped holding part 14 of the grinding block 30 by means of an opening 15.
  • the collecting chamber 11 forms a kind of nozzle channel 16, which extends from an inlet opening 17 which clings to the circumference of the roller 6 to a separating chamber 21 in the rear end.
  • a suction fan 22 is optionally connected there.
  • the inlet opening 17 follows the contour of the roller 6 and begins at the lower edge of the grinding block 30. Its lower edge is designated by 24.
  • the edge 24 is expediently designed like a knife.
  • an ear 18 from a shaft side wall could be present in the area of the inlet opening 17 (as indicated at 17 ') on each side of the roller 6.
  • the collecting chamber 11 also has a bottom wall 25 which has a front part 23 which can be folded down by means of a hinge 19 and which runs upward in an arc shape, gradually approaching the circumference of the roller 6.
  • a guide roller 20 is indicated, which supports the pulling out of the collecting chamber 11 for emptying or for maintenance work. If the guide roller 20 is not provided, the collecting chamber 11 can be detached from the hook-like holding element 14 by pushing forward and then pulled away to the rear or folded down. It is also conceivable to mount the collecting chamber 11 firmly and to attach the separating chamber 21 to the collecting chamber 11 in a detachable manner. It would also be conceivable to pull the collection chamber away in the forward direction, so that no front part 23 which can be folded down is then required.
  • the top wall 26 of the collecting chamber 11 is located in the immediate vicinity of the lower run 8b of the grinding belt loop 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)
EP19900104263 1989-05-26 1990-03-06 Machine à meuler à bande Expired - Lifetime EP0399155B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8906512U 1989-05-26
DE8906512U DE8906512U1 (de) 1989-05-26 1989-05-26 Bandschleifmaschine

Publications (2)

Publication Number Publication Date
EP0399155A1 true EP0399155A1 (fr) 1990-11-28
EP0399155B1 EP0399155B1 (fr) 1993-10-06

Family

ID=6839588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900104263 Expired - Lifetime EP0399155B1 (fr) 1989-05-26 1990-03-06 Machine à meuler à bande

Country Status (3)

Country Link
EP (1) EP0399155B1 (fr)
DE (2) DE8906512U1 (fr)
DK (1) DK0399155T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5377916A (en) * 1988-07-01 1995-01-03 Koolmill Systems Limited Surface abrasive treatment of small objects
CN108544343A (zh) * 2018-05-29 2018-09-18 江苏盖之宝包装科技有限公司 带有封闭罩壳的磨床及吸尘装置
WO2019104615A1 (fr) * 2017-11-30 2019-06-06 陈金泉 Meuleuse à élimination de poussière électrostatique

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106217191B (zh) * 2016-08-12 2018-08-21 卓达新材料科技集团威海股份有限公司 一种打磨样块工装
CN114851035A (zh) * 2022-04-25 2022-08-05 大连橡胶塑料机械有限公司 一种密炼机转子自动抛光数控集成设备及加工方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH536694A (de) * 1971-04-16 1973-05-15 Herzog Ernst Staubabsaugvorrichtung an einer Bandschleifmaschine
DE2502806A1 (de) * 1974-02-07 1975-08-14 Timesavers Inc Entstaubungsvorrichtung fuer schleifmaschinen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH536694A (de) * 1971-04-16 1973-05-15 Herzog Ernst Staubabsaugvorrichtung an einer Bandschleifmaschine
DE2502806A1 (de) * 1974-02-07 1975-08-14 Timesavers Inc Entstaubungsvorrichtung fuer schleifmaschinen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5377916A (en) * 1988-07-01 1995-01-03 Koolmill Systems Limited Surface abrasive treatment of small objects
WO2019104615A1 (fr) * 2017-11-30 2019-06-06 陈金泉 Meuleuse à élimination de poussière électrostatique
CN108544343A (zh) * 2018-05-29 2018-09-18 江苏盖之宝包装科技有限公司 带有封闭罩壳的磨床及吸尘装置

Also Published As

Publication number Publication date
DK0399155T3 (da) 1993-11-15
DE59002971D1 (de) 1993-11-11
DE8906512U1 (de) 1989-07-27
EP0399155B1 (fr) 1993-10-06

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