EP1556187A1 - Meuleuse d'angle equipee d'un dispositif d'arrosage permettant de retenir la poussiere - Google Patents

Meuleuse d'angle equipee d'un dispositif d'arrosage permettant de retenir la poussiere

Info

Publication number
EP1556187A1
EP1556187A1 EP03760560A EP03760560A EP1556187A1 EP 1556187 A1 EP1556187 A1 EP 1556187A1 EP 03760560 A EP03760560 A EP 03760560A EP 03760560 A EP03760560 A EP 03760560A EP 1556187 A1 EP1556187 A1 EP 1556187A1
Authority
EP
European Patent Office
Prior art keywords
angle grinder
spray
milling
grinder according
nozzle
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Withdrawn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
EP03760560A
Other languages
German (de)
English (en)
Inventor
Franz Kleinberens
Michael JÜRGENS
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1556187A1 publication Critical patent/EP1556187A1/fr
Withdrawn legal-status Critical Current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
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/028—Angle tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/08—Protective coverings for parts of machine tools; Splash guards
    • B23Q11/0858—Protective coverings for parts of machine tools; Splash guards using a liquid bath or a liquid curtain
    • 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
    • B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
    • 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
    • B24B55/10—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided
    • B24B55/102—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided with rotating tools
    • 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
    • B28D7/02—Accessories specially adapted for use with machines or devices of the preceding groups for removing or laying dust, e.g. by spraying liquids; for cooling work

Definitions

  • the invention relates to an angle grinder with a milling or grinding wheel arranged on a drive shaft, a protective hood partially surrounding the milling and grinding wheel and a first spray nozzle for spraying removed workpieces.
  • the disadvantage of this invention is that the angle grinder must be equipped with the special protective hood with the outlet nozzle. Commercial angle grinders can only be converted with great effort or are not suitable for the use described.
  • the object of the invention is to equip a commercially available angle grinder with a milling or grinding wheel in such a way that the resulting dust is bound with little technical effort and with little use of water.
  • the object is achieved in that the spray nozzle is installed on a spray device which can be plugged and clamped over the protective hood and is directed into the plane of the milling and grinding disk, and in that the spray device has a second spray nozzle which points to the Level of the milling and grinding wheel is directed just before the wheel engages.
  • the spray device is a bridge-shaped plastic body. This is flexible enough to be slightly pushed apart and pushed onto the protective hood.
  • the bridge-shaped plastic body has a groove into which the protective hood is inserted.
  • Protective hood and spray device are precisely connected to each other.
  • the groove is advantageously provided with catches that clamp the protective hood.
  • a particularly advantageous design for the spray device results if the spray nozzles are fastened to the plastic body in the plane of the milling and grinding disk. In this case, the spray jets hit the work piece perpendicularly.
  • the spray nozzles are connected to a common water line and the water reaches the spray nozzles via channels integrated in the plastic body.
  • Plastic bodies are connected so that clogged spray nozzles can be easily replaced or the nozzles can be adjusted according to the material to be processed. If a shut-off valve is installed between the water pipe and the spraying device, the operator can open and close the water supply directly on the angle grinder.
  • the second spray nozzle for moistening the material to be processed is advantageously a hollow cone nozzle, full jet nozzle or flat jet nozzle.
  • the selection depends on the absorbency of the material and the water permeability of the surface of the processed material.
  • the first spray nozzle at the outlet of the disk which binds the released dust, is advantageously a hollow cone nozzle to cover a larger area, but at the same time to minimize water consumption by choosing the shape of a hollow cone instead of a full cone.
  • a design which is useful for use results if the protective hood can be rotated together with the spray device.
  • the angle grinder can be held in various positions, which increases accessibility.
  • the milling disk can preferably be replaced when the spray device is attached.
  • the spraying device has a U-shaped cross section and between the outside , the spray nozzle-bearing areas with greater depth has a recess with smaller depth in the area of the milling and grinding wheel.
  • FIG. 1 a shows a side view of an angle grinder in use
  • Fig. Lb is a plan view of an angle grinder in use
  • FIG. 2a shows a side view of an angle grinder in use
  • 2b is a top view of an angle grinder in use
  • FIG 3 shows an angle grinder with a further embodiment of the spray device.
  • the angle grinder shown in FIGS. 1a, 1b and 2a, 2b, 2c is a hand-held device. This consists of a motor housing 1, which also serves as a holder and on which an operating switch 3 is attached.
  • a gear head 4 is seated on the motor housing 1, from which a side handle 5 projects.
  • the gear head 4 drives a drive shaft 6 according to the arrow A on which a milling or grinding wheel 7 is attached and secured with a knurled nut 2.
  • the angle grinder is used to create a slot 8 in a workpiece 9.
  • the milling or grinding wheel 7 is from a protective hood 11 open to the material to be processed 9.
  • the protective hood 11 consists of an annular baffle 11.1 which is fastened to the motor housing 1 by means of a holder 11.3 via a semicircular rear wall 11.2.
  • a spray device 12 according to the invention is located above the protective hood 11; 12 ', which essentially consists of a plastic body 12.1; 12.1 'and two spray nozzles 12.3, 12.3.
  • the bridge-shaped body 12.1; 12.1 ' has a groove 12.1.6 on the underside; 12.1.6 ', whose contour corresponds to the outer surface of the baffle 11.1. At the two ends of the groove 12.1.6; 12.1.6 'are notches 12.1.7; 12.1.7 'arranged in which the slipped-on protective cover 11 snaps into place.
  • the underside of the plastic body 12.1 is preferably flush with the rear wall 11.2 of the protective hood 11.
  • the top of the bridge-shaped plastic body 12.1 is stiffened with a collar 12.1.5; 12.1.5 '.
  • the Confederation 12.1.5; 12.1.5 ' is designed in such a way that the milling disk 7 when the spray device 12; 12 'can be changed.
  • the spray device 12 can be implemented in two different embodiments, which are essentially the arrangement of the spray nozzles 12.2, 12.3 and their Distinguish alignment.
  • the shape of the plastic body 12.1 results from the different arrangement.
  • the spray nozzles are arranged on the plastic body outside the diameter of the milling disk 7.
  • the second spray nozzle 12.3 in the plane of the milling disk 7 is directed perpendicular to the workpiece 9 in the area before the milling disk 7 engages, the first spray nozzle 12.2 is also in the plane of the milling disk 7, however, to an area behind the outlet of the milling disk 7 directed perpendicularly to the workpiece 9.
  • the spray nozzles are arranged within the diameter of the milling disk 7 on the plastic body 12.1 ', but laterally offset to it.
  • the threaded blind holes 12.1.1 ', 12.1.2' are made obliquely in the plastic body.
  • the collar 12.1.5 'of the bridge-shaped plastic body 12.1' is made correspondingly wider in this embodiment.
  • the second spray nozzle 12.3 is directed at an angle of approximately 24 ° to an area at the engagement of the milling disk 7 at an angle to the work piece 9; the first spray nozzle 12.2 is directed at an angle of 24 ° to an area at the outlet of the milling disk 7 at an angle to the workpiece 9.
  • both spray nozzles 12.2, 12.3 are inclined obliquely in the direction of the drive shaft 6.
  • a hollow cone nozzle is used for the first spray nozzle 12.2.
  • This spray nozzle 12.2 sprays and binds the released dust.
  • a plurality of different spray nozzles can be used for the second spray nozzle 12.3 in both embodiments. The selection depends on the material to be processed 9. Absorbent, soft materials such as. B. Sandstone are sprayed in particular with a hollow cone nozzle, whereas water-repellent, hard materials are moistened with either a flat jet nozzle or a full jet nozzle.
  • Both spray nozzles 12.2, 12.3 are via channels 12.1.4, 12.1.4 'in the plastic body 12.1, 12.1', which are in a threaded bore 12.1.3; 12.1.3 'on the side facing away from the material 9 to be processed, connected to one another.
  • a shut-off valve 12.4 is screwed in, to which a water line 15 is connected.
  • the amount of water on the angle grinder can be regulated via the shut-off valve 12.4 '. At a maximum of 20 liters per hour, there is a sufficient volume flow from the water line 15 in the spray device according to the invention.
  • the water pressure when entering the spraying device 12 ' should be at least 3 bar so that the spray nozzles 12.2, 12.3 emit a functionally appropriate spray jet.
  • the function of the spray device 12 ' is particularly effective when the direction of rotation of the milling disk 7 and the direction of movement of the angle grinder take place in the same direction, this method is referred to in professional circles as synchronous milling.
  • FIG. 3 shows a further embodiment of a spray device 12 ′′, which has a U-shaped cross section and between the outside, which carries the spray nozzles 12.2, 12.3 Areas 14 with greater depth has a recess 14 with a smaller depth in the area of the milling and grinding wheel 7. In the area of the recess 14, a clear view of the milling, grinding or cutting disk 7 engaging in the workpiece is made possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Abstract

L'invention concerne une meuleuse d'angle comprenant une fraise ou une meule (7), un capot de protection (11) entourant partiellement cette fraise ou cette meule, ainsi qu'une première buse d'arrosage (12.2) servant à arroser la matière enlevée (10). Selon l'invention, cette première buse d'arrosage (12.2) est installée sur un dispositif d'arrosage (12) pouvant être placé et bloqué par-dessus le capot de protection (11) et elle est dirigée dans le plan de la fraise ou de la meule (7). Une seconde buse d'arrosage (12.3) est dirigée sur le plan de la fraise ou de la meule (7) juste avant l'attaque de celle-ci.
EP03760560A 2002-06-20 2003-06-13 Meuleuse d'angle equipee d'un dispositif d'arrosage permettant de retenir la poussiere Withdrawn EP1556187A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20209607U 2002-06-20
DE20209607U DE20209607U1 (de) 2002-06-20 2002-06-20 Winkelschleifer mit Sprühvorrichtung zur Staubbindung
PCT/DE2003/001967 WO2004000501A1 (fr) 2002-06-20 2003-06-13 Meuleuse d'angle equipee d'un dispositif d'arrosage permettant de retenir la poussiere

Publications (1)

Publication Number Publication Date
EP1556187A1 true EP1556187A1 (fr) 2005-07-27

Family

ID=7972390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03760560A Withdrawn EP1556187A1 (fr) 2002-06-20 2003-06-13 Meuleuse d'angle equipee d'un dispositif d'arrosage permettant de retenir la poussiere

Country Status (4)

Country Link
EP (1) EP1556187A1 (fr)
AU (1) AU2003250260A1 (fr)
DE (1) DE20209607U1 (fr)
WO (1) WO2004000501A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105856028A (zh) * 2016-05-13 2016-08-17 辛顺强 角磨机集尘装置
CN105881163A (zh) * 2016-05-13 2016-08-24 辛顺强 无尘角磨机

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012221273A1 (de) * 2012-11-21 2014-05-22 Hilti Aktiengesellschaft Werkzeuggerät mit einer Sprühvorrichtung zur Staubbindung
DE102012221275A1 (de) * 2012-11-21 2014-05-22 Hilti Aktiengesellschaft Werkzeuggerät mit einer Sprühvorrichtung zur Staubbindung
DE102013006310B4 (de) 2013-04-14 2014-11-06 Andreas Rupprecht Fahrbares Gerät zur weitgehend staubfreien Fugenherstellung oder -reparatur in Oberflächen
CN104669090B (zh) * 2015-03-02 2016-09-07 安徽工业大学 一种砂轮设有人字型槽的磨削装置及磨削方法
CN108162198B (zh) * 2017-11-23 2019-12-03 宏伟建设工程股份有限公司 一种易于调节的防尘型开槽机
WO2019104615A1 (fr) * 2017-11-30 2019-06-06 陈金泉 Meuleuse à élimination de poussière électrostatique
CN109202673A (zh) * 2018-08-23 2019-01-15 厦门浙辉工贸有限公司 抛光机
CN109693317B (zh) * 2019-01-21 2021-02-26 安徽中宇玻璃制品有限公司 一种玻璃边角加工用手持式切割装置
CN110814971A (zh) * 2019-11-15 2020-02-21 泰州卡尔特机械制造有限公司 一种雾化气动角磨机
CN111843777A (zh) * 2020-06-12 2020-10-30 东营市万隆精铸金属有限公司 一种多功能机械自动化模具加工装置
DE202022001468U1 (de) 2022-06-28 2022-08-09 Andreas Rupprecht Offene Schutzhaube mit integrierter Absaugung für ein fahrbares Gerät zum Trockenschnitt in Oberflächen

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GB826194A (en) * 1956-05-28 1959-12-31 Bull Sa Machines Improvements relating to cooling systems for machine tools
US4782591A (en) * 1987-11-23 1988-11-08 Devito Anthony Saw blade cooling system
US4929130A (en) * 1989-06-28 1990-05-29 United Technologies Corporation Grinding wheel guard apparatus
DE3943076A1 (de) * 1989-12-27 1991-07-04 Hilti Ag Handgeraet mit fraes- oder schleifscheibe
DE20106180U1 (de) * 2001-04-07 2001-09-27 Marx Peter Trennscheibe zum Räumen einer Mauerwerksfuge

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004000501A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105856028A (zh) * 2016-05-13 2016-08-17 辛顺强 角磨机集尘装置
CN105881163A (zh) * 2016-05-13 2016-08-24 辛顺强 无尘角磨机

Also Published As

Publication number Publication date
WO2004000501A1 (fr) 2003-12-31
DE20209607U1 (de) 2003-01-09
AU2003250260A1 (en) 2004-01-06

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