WO1998052849A1 - Abstreifvorrichtung zum reinigen von förderbändern - Google Patents
Abstreifvorrichtung zum reinigen von förderbändern Download PDFInfo
- Publication number
- WO1998052849A1 WO1998052849A1 PCT/EP1998/002735 EP9802735W WO9852849A1 WO 1998052849 A1 WO1998052849 A1 WO 1998052849A1 EP 9802735 W EP9802735 W EP 9802735W WO 9852849 A1 WO9852849 A1 WO 9852849A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- scraper
- attached
- rubber
- support beam
- support
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G45/00—Lubricating, cleaning, or clearing devices
- B65G45/10—Cleaning devices
- B65G45/12—Cleaning devices comprising scrapers
Definitions
- the invention relates to a scraper device for cleaning conveyor belts with at least one first scraper bar attached to a support beam, with at least one axle scraper attached to the support bar, which has at least one scraper blade aligned at an angle or also at right angles to the direction of travel of the conveyor belt and attached to support arms, and with an adjustable pressure device that engages the ends of the support beam.
- Scraper devices for cleaning conveyor belts are known in a variety of different designs.
- a stripping device that the applicant has long been using has, for example, a central supporting beam with a hollow square profile, on the long sides of which one, two or even three scraper strips of approximately rectangular cross-section made of a wear-resistant PUR or rubber material, if necessary permanently fixed with hard metal or ceramic inserts are. After wear of a squeegee by simply repositioning the support beam in its adjustable bracket by 90 or 180 ° these can be replaced by an as yet unused squeegee.
- the support beam holder is assigned a pressure device which is mounted on the load-bearing components of the conveyor and, after individual adjustment, generates a certain resilient pressure of the effective scraper strip on the conveyor belt.
- DE 39 15 609 A1 Another device for cleaning conveyor belts is known from DE 39 15 609 A1, which has two supporting beams designed as square hollow profiles, each of which has two scraper strips of rectangular cross section made of PUR material and which are connected to one another by cross struts in the form of a rocker . These cross struts are pivotally mounted at the end of the boom arms, so that two scraper strips can be located in a pressure system on the conveyor belt at the same time.
- EP 0 262 272 A1 discloses a scraper device for conveyor belts, which has a front scraper strip and a scraper blade arranged downstream of it, both of which are positively and releasably attached to a common support beam.
- the scraper bar is made of a suitable PUR material and resiliently rests on the conveyor belt.
- Both scraper elements are fixed with their respective mounting feet in an approximately dovetail-shaped manner in corresponding guide recesses of the supporting beam so that they can be installed and removed in a simple manner.
- the secondary scraper can have a plurality of scraper blades arranged next to each other in a mutual offset, which abut the outer edge with their outer edge and are fastened with their lower part at the end of separate support arms made of PUR material.
- the object of the invention is to provide a stripping device for cleaning conveyor belts which, with a structurally simple and self-contained structure, causes a gentle attack on the conveyor belt in conjunction with a high cleaning effect.
- This object is achieved in that a continuous bar made of a rubber-elastic material, PUR or another elastic plastic is attached to the support beam, on which the angled support arms of the wiper are mounted.
- the scraper device designed according to the invention achieves a particularly intensive cleaning effect, since the first relatively wide continuous scraper strip removes thicker and also coarser adhering substances from the conveyor belt and the secondary scraper, which consists of a large number of individual and separately sprung scraper plates, ensures the final belt cleaning. It is essential that the entire stripping device works with relatively low pressure forces, which means a gentle attack of the two stripping elements on the expensive conveyor belt.
- the small dimensions and the low weight of the stripping device enable simple assembly even at relatively inaccessible operating points, which, for example, enables the replacement of conventional strippers by the improved device according to the invention.
- Another advantage is that possibly worn scraper plates of the secondary scraper together with the respective support arms individually and on easy before they can be replaced.
- the arrangement of the scraper plates of the secondary scraper, each with overlap on both sides, ensures that the conveyor belt is cleaned over a fixed width, the separate resilient mounting of the respective support arm ensuring effective contact of each scraper plate on the conveyor belt.
- the first squeegee has an approximately rectangular cross section and consists of a suitable rubber or plastic material, preferably of PUR with or without fibrous, granular or powdery fillers, which have a favorable effect on the strength or wear behavior.
- the squeegee can also consist of hard metal, ceramic or combinations of materials.
- the service life of the scraper device according to the invention can be significantly extended by an expedient development in which two scraper bars are attached opposite each other on a single supporting beam.
- Figure 1 shows a first embodiment of the stripping device according to the invention in cross section.
- Fig. 2 shows the device of Figure 1 in rear view.
- Fig. 3 shows another embodiment of the stripping device according to the invention in schematic cross section.
- the scraper device shown in Figures 1 and 2 is used to clean a conveyor belt 1 immediately behind a drive or deflection drum 2 and has a first scraper bar 3 of substantially rectangular cross-section and a Nachabstreifer 4, which on a Square hollow profile executed support beam 5 are attached.
- the scraper strip extends across the entire width of the conveyor belt 1 and consists of a relatively wear-resistant rubber or plastic material, preferably PUR, or of rubber / PUR combinations with hard metal and / or ceramic integrated.
- FIG. 2 which represents a rear view of the device in the direction of arrow P in FIG. 1
- two levers 6 of a conventionally designed pressing device 7 are attached to the two end parts of the support beam 5, which position adjustment of the support beam 5 and thus of the entire stripping device to achieve a resilient pressure.
- a rubber-elastic strip 8 is permanently attached, for example by vulcanization, which consists of a suitable rubber or plastic material, especially a PUR.
- vulcanization which consists of a suitable rubber or plastic material, especially a PUR.
- brackets 9 embodied here as angular parts are embedded or vulcanized. As indicated by dashed lines in FIG.
- the rubber-elastic strip 8 can also be divided into identical or unequal sections by blind slots or also consist of individual segments.
- the brackets 9 designed as steel sheet inserts are used for screwing on plate-shaped feet 10, which are welded at the end by the angled support arms 11 or screwed on for adjustment or readjustment.
- Wiper plates 12 are welded to the upper, obliquely upward-pointing sections of these support arms 11, which have a straight scraper edge 13 and, moreover, a shape in the form of a segment of a circle. As shown, these scraper plates 12 are offset from one another in the direction of movement of the conveyor belt 1 and are arranged to overlap one another on both sides, so that an over the entire width of the conveyor belt extends. Grazing effect results.
- Particularly wear-resistant hard plates 14 can be attached to the end sections of these scraper plates 12, which also applies to the scraper strips 3. Instead of these plates 14 or subsequently, a sliding covering made of, for example, PTFE, which promotes the drainage of particularly sticky materials, can be provided on the front, in particular of the wiper strip 3.
- a sliding covering made of, for example, PTFE which promotes the drainage of particularly sticky materials
- FIG. 3 basically corresponds to the exemplary embodiment according to FIGS. 1 and 2, the same components being identified with the same reference numerals.
- a second scraper bar 15 is used, which is diametrically opposite the scraper bar 3 on the supporting beam 5 permanently, e.g. by vulcanization, adhesive or the like is attached.
- a resilient strip 16 made of rubber-elastic material, preferably PUR, is permanently attached, which can have a tapering cross-section to maintain the desired spring properties and in the same way as in the embodiment. 1 as a sheet steel insert brackets 9 for the angled support arms 11 are permanently attached, the latter having the shape shown in Fig. 3.
- This embodiment according to FIG. 3 enables the support beams to be moved when the scraper strip 3 is worn, the support arms being detached from the rubber-elastic strip 16 and being reattached after they have been turned.
- a particular advantage of the device according to the invention is that the scraper strips 3 can be adjusted so that there is a small intermediate distance between their end surface and the conveyor belt 1, so that they are primarily coarser materials be stripped. Due to the The subsequent stripper plates 12 of the stripper 4 are then subjected to final cleaning of the conveyor belt, in which even firmly adhering caking and fine-grained pasty material are stripped off.
- the special shape of the narrow strip-shaped support arms ensures that the material released by the secondary wiper 4 can fall freely and unhindered from the support arms.
- the invention is not restricted to the exemplary embodiments shown.
- the wiper strips 3 instead of the wiper strips 3; 15 differently shaped scraper strips are also used, which combine a sufficient cleaning effect with a gentle pressure system on the conveyor belt 1.
- the continuous or segmented rubber-elastic strip 16 can be replaced by other suitable spring elements, although the embodiment shown is considered to be preferred in terms of cost and durability.
- the scraper i.e. the pre-scraper and also the post-scraper, due to the inherent elasticity or the elastic bearing, so that the risk of belt damage or increased damage is reduced to a minimum. Caking on the squeegee and also on the secondary scraper are also reliably avoided.
- a suitable contact pressure for the front squeegee and for the secondary scraper can also be selected.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
- Structure Of Belt Conveyors (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU77635/98A AU7763598A (en) | 1997-05-23 | 1998-05-11 | Wiper device for cleaning conveyor belts |
EP98925568A EP0983206A1 (de) | 1997-05-23 | 1998-05-11 | Abstreifvorrichtung zum reinigen von förderbändern |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29709117U DE29709117U1 (de) | 1997-05-23 | 1997-05-23 | Abstreifvorrichtung zum Reinigen von Förderbändern |
DE29709117.4 | 1997-05-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998052849A1 true WO1998052849A1 (de) | 1998-11-26 |
Family
ID=8040714
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1998/002735 WO1998052849A1 (de) | 1997-05-23 | 1998-05-11 | Abstreifvorrichtung zum reinigen von förderbändern |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0983206A1 (de) |
AU (1) | AU7763598A (de) |
DE (1) | DE29709117U1 (de) |
WO (1) | WO1998052849A1 (de) |
ZA (1) | ZA984332B (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29709117U1 (de) * | 1997-05-23 | 1997-07-17 | Stahlgruber Otto Gruber GmbH & Co, 81675 München | Abstreifvorrichtung zum Reinigen von Förderbändern |
DE10301230B4 (de) * | 2003-01-15 | 2006-06-14 | Jostes, Hans, Dipl.-Ing. | Abstreifvorrichtung zum Reinigen von Förderbändern |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2365415A1 (de) * | 1973-04-18 | 1974-12-19 | Manfred Schattauer | Abstreifvorrichtung fuer gurtbandanlagen. ausschdidung aus: 2319736 |
US4257517A (en) * | 1976-12-06 | 1981-03-24 | Uniroyal Ltd. | Scraper bars for use with conveyor belting and the like |
EP0262272A1 (de) * | 1986-09-02 | 1988-04-06 | Martin Engineering Company | Fördergurtreiniger |
US4768645A (en) * | 1987-02-20 | 1988-09-06 | Farris Sammy D | Conveyor belt scraping apparatus |
EP0396890A1 (de) * | 1989-05-12 | 1990-11-14 | F.E. Schulte Strathaus KG | Vorrichtung zum Reinigen von Förderbändern |
DE4121173A1 (de) * | 1990-08-07 | 1992-02-13 | Jostes Marie | Abstreifelement fuer reinigungs- und abstreifeinrichtungen im foerderbandbereich |
DE4407657A1 (de) * | 1994-03-08 | 1995-09-14 | Hans Dipl Ing Jostes | Abstreifvorrichtung mit einer Leiste aus einem schlagzähen, keramischen Kunststoff |
DE29709117U1 (de) * | 1997-05-23 | 1997-07-17 | Stahlgruber Otto Gruber GmbH & Co, 81675 München | Abstreifvorrichtung zum Reinigen von Förderbändern |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1002933A3 (fr) * | 1988-02-10 | 1991-09-03 | Technic Gum Sa | Montage de lames racleuses pour le decrassage d'une bande transporteuse. |
GB8903217D0 (en) * | 1989-02-13 | 1989-03-30 | Doncaster Conveyor Improv | Conveyor belt scraper mechanism |
DE9013426U1 (de) * | 1990-09-24 | 1990-12-13 | König, Carl, 6472 Altenstadt | Balkenabstreifer für Fördergurte |
DE9420641U1 (de) * | 1994-12-23 | 1995-02-09 | TIP-TOP Vulkanisiertechnik, 37581 Bad Gandersheim | Abstreifer für Förderbänder |
-
1997
- 1997-05-23 DE DE29709117U patent/DE29709117U1/de not_active Expired - Lifetime
-
1998
- 1998-05-11 AU AU77635/98A patent/AU7763598A/en not_active Abandoned
- 1998-05-11 EP EP98925568A patent/EP0983206A1/de not_active Ceased
- 1998-05-11 WO PCT/EP1998/002735 patent/WO1998052849A1/de not_active Application Discontinuation
- 1998-05-21 ZA ZA984332A patent/ZA984332B/xx unknown
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2365415A1 (de) * | 1973-04-18 | 1974-12-19 | Manfred Schattauer | Abstreifvorrichtung fuer gurtbandanlagen. ausschdidung aus: 2319736 |
US4257517A (en) * | 1976-12-06 | 1981-03-24 | Uniroyal Ltd. | Scraper bars for use with conveyor belting and the like |
EP0262272A1 (de) * | 1986-09-02 | 1988-04-06 | Martin Engineering Company | Fördergurtreiniger |
US4768645A (en) * | 1987-02-20 | 1988-09-06 | Farris Sammy D | Conveyor belt scraping apparatus |
EP0396890A1 (de) * | 1989-05-12 | 1990-11-14 | F.E. Schulte Strathaus KG | Vorrichtung zum Reinigen von Förderbändern |
DE4121173A1 (de) * | 1990-08-07 | 1992-02-13 | Jostes Marie | Abstreifelement fuer reinigungs- und abstreifeinrichtungen im foerderbandbereich |
DE4407657A1 (de) * | 1994-03-08 | 1995-09-14 | Hans Dipl Ing Jostes | Abstreifvorrichtung mit einer Leiste aus einem schlagzähen, keramischen Kunststoff |
DE29709117U1 (de) * | 1997-05-23 | 1997-07-17 | Stahlgruber Otto Gruber GmbH & Co, 81675 München | Abstreifvorrichtung zum Reinigen von Förderbändern |
Also Published As
Publication number | Publication date |
---|---|
ZA984332B (en) | 1998-11-30 |
EP0983206A1 (de) | 2000-03-08 |
AU7763598A (en) | 1998-12-11 |
DE29709117U1 (de) | 1997-07-17 |
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