CA2092994A1 - Belt grinder - Google Patents
Belt grinderInfo
- Publication number
- CA2092994A1 CA2092994A1 CA002092994A CA2092994A CA2092994A1 CA 2092994 A1 CA2092994 A1 CA 2092994A1 CA 002092994 A CA002092994 A CA 002092994A CA 2092994 A CA2092994 A CA 2092994A CA 2092994 A1 CA2092994 A1 CA 2092994A1
- Authority
- CA
- Canada
- Prior art keywords
- belt
- contact roll
- roll
- grinding
- piston
- 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.)
- Abandoned
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The grinding belt (76) of a belt grinder is guided over a drive roller (86) and a contact roller (78) and tightened by a belt tensioner. To improve the matching of the contact roller (78) to the surface (4) to be ground, it has a floating support.
In addition, guide rollers (80, 82) for the grinding belt (76) are located on both sides of the contact roller (78).
The grinding belt (76) of a belt grinder is guided over a drive roller (86) and a contact roller (78) and tightened by a belt tensioner. To improve the matching of the contact roller (78) to the surface (4) to be ground, it has a floating support.
In addition, guide rollers (80, 82) for the grinding belt (76) are located on both sides of the contact roller (78).
Description
I i,,,... ~
I r~ , v ; ~
BELT GRINDER
The invention concerns a belt grinder according to the preamble of claim 1.
Belt grinders of the aforementioned kind are well known, for example from CH-PS 668 212. Such belt grinders are relatively complicated and accordingly their provision is very expensive, since they require special carriers as well as guide devices associated with the carriers, in order to guide the contact roll in keeping with the profile of the surface to be ground.
The object of the invention is to provide a belt grinder of the mentioned type which has a simple construction and which in a simple way adapts to the contour of the surface to be ground.
This object is inventively solved in the invention by the characterizing features of claim 1. The floating support for the contact roll makes possible its adaption to the contour of the surface to be ground, as for example the surface of a cambered roll, the inner and outer surfaces of containers, and the like, whereby the guide apparatus can be simplified and while yet achieving a high accuracy and surface finish quality.
Advantageous developments of the belt grinder are descrihed in claims 2 to 7. For the implementation of the floating support for the contact roll for the grinding belt diverse possibilities arise. An especially advantageous implementation is described in claim 2. The grinding accuracy can be improved by a further development according to claim 3, since then the pressure of the contact roll at all angular positions of the contact roll remains constant. Especially advantageous is a further development according to claim 4, which makes possible an automatic finely regulatable delivery of the belt grinder mechanism. For the tensioning of the grinding belt different implementation possibilities arise such as tensioning rolls and alike. Especially advantageous and simple is a development according to claim 5, whereby a symmetrical construction of the belt grinder mechanism is promoted. In it the belt tensioning apparatus in the simplest case can be made as a mechanical spring apparatus.
An especially advantageous implementation of the belt grinder is described in claim 6 which makes possible a delicate control of the grinder so that, for example, rolls with non-cylindrical surfaces over their entire lengths can be ground with an application pressure that remains constant. It involves a belt grinder that can be adjusted to the different grinding requirements so that a grinding with highest accuracy is possible.
Especially practical is the implementation of the grinder according to claim 7 which hinders the tilted application of the contact roll to the work roll and with it the production of fault type grinding marks.
Embodiments of the subject matt~r of the invention hereafter described in more detail in connection with schematic drawin~s which show:
Fig. 1 is a side view, in the direction of sliding movement, of a belt grinder applied to a work roll.
Fig. 2 is a top view of the belt grinder of Fig. 1.
Fig. 3 is a sectional view of the frame of the belt grinder taken along the line III-III of Fig. 4.
Fig. 4 is a sectional view of the frame of the belt grinder taken along the line IV-IV of Fig. 3.
Fig. 5 is a sectional view of the frame of the belt grinder with a supplemental securing apparatus taken along the line V-V of Fig. 6.
Fig. 6 is a right side view of the securing apparatus of Fig. 5.
Fig. 7 is a horizontal sectional view of the belt grinder of Fig. 1.
Figs. 1 and 2 are complete views of a belt grinder which is arranged on the scraper apparatus 2 of a roll 4, for example the roll of a paper machine. The belt grinder includes a frame 6 with rollers 8 which is placed on a scraper 10 of the scraping apparatus 2, the scraping apparatus 2 being shown in the condition of being pi~oted away from the roll 4. A frame 6 includes a holder 12 with an engagement roller 14, which laterally engages the carrier 16 of the scraping apparatus 2.
The actual belt grinder mechanism 18 is fastened to the frame 6.
The holder 12 has an upper arm 20 and a lower arm 22 which are fastened to the frame 6 and extend transversely to the plane of the rollers 8. Each arm 20, 22 is provided with a double clamping member 24 which itself is fixed to the associated arm 20, 22 by means of a clamping screw 26. A rod 28 is fixed to the clamping members so as to extend transversely to the arms and likewise is fixed by clamping screws 30. The engagement roller 14 is supported on the lower end of the rod with the plane of the roller 14 running perpendicular to the plane of the rollers 8.
With the help of the clamping members 24 the rod 28 can be adjusted as to its position on the arms 20, 22 as well as to its height. The arrangement of the holder 12 is such that the rod 28 is located along the length of the frame 6 halfway between the rollers 8. Thereby a three point support is achieved which is especially stable. Moreover this support makes it possible that the belt grinder mechanism 18 can be exchangably fastened at the cheeks 32, 34 of the frame 6. For this the belt grinder mechanism 18 is made so as to be essentially mirror image symmetrical with respect to the horizontal plane 36, so that through use of the mounting plate 38 forming part of the grinder mechanism the grinder mechanism can be selectively attached to either one of the two cheeks 32, 34.
Figs. 3 and 4 show details of the drive of the rollers 8 of the frame 6. As to this, the frame contains a drive motor 40 which through a drive 42 and a clutch 44 drives a drive wheel 46 for a toothed belt 48. The belt 48 is trained over two wheels 50, fastened to shafts 52, on which the rollers 8 are arranged.
~ 'igs. 5 and 6 show a supplementary securing mechanism 54 for securing the belt grinder to the scraper apparatus 2. In this case the scraper 10 of the scraper apparatus 2 is first replaced in the scraper apparatus 2 by an L shaped rail 56. The rollers 8 run on the rail 56. The securing mechanism 54 includes securing rollers 58 which are associated with the rollers 8 and which are pivotal into engagement with the inner side 60 of the L
shaped rail 56. For this the securing rollers 58 are fastened to a pivot axle 62 which in turn is pivotably supported in arms 64 on the frame 6. To the pivot axle 62 is fastened a lever 66 which is connected through a coupling member 68 with a threaded ¦spindle 70. The spindle 70 cooperates with a rotatably supported ¦sleeve 72 having a non-illustrated internal thread. The sleeve 172, which is rotatably supported in the frame 6, is provided with a hand crank 74. By rotation of the hand crank 74 the securing rollers 58 can be moved into and out of engagement with the inner side 60 of the L shaped rail 56 as well as be pressed against it.
Figs. 1, 2 and 7 show the belt grinding mechanism 18 in detail. The grinding belt 76 is guided over a floatingly supported contact roll 78, over fixedly positioned guide rolls 80, 82 adjacent both sides of the contact roll, and over a drive roll 86 driven by a drive motor 84. The drive motor 84 is arranged on a slide 88 which is arranged in a housing 92 containing the floating support 90 for the contact roll 78. A
belt tensioning device 94 serves to tension the grinding belt, which device cooperates with the slide 88 of the drive motor 84 and biases the drive roll 86 away from the contact roll 78. The belt tensioning device 94 includes a piston/cylinder unit 96 connected by conductors 98, lOo with a fluid mechanism 102. The floating support 90 for the contact roll 78 includes longitudinal guides 104, 106 contained in the housing 92 for the axle 108 on which the contact roll 78 is rotatably supported. The longitudinal guides 104, 106 extend perpendicularly to the surface to be worked, that is radially to the work roll 4. The axle 108 in the longitudinal guides 104, 106 is yieldingly engaged with piston/cylinder units 110, 112. In connection with this, the corresponding pressure spaces of the piston/cylinder units 110, 112 are connected with one another by connecting conductors 114, 116~ The piston/cylinder units 110, 112 are moreover connected by conductors 118, 120 to the fluid apparatus 102. The piston/cylinder units 110, 112 also serve at the same time for positioning the contact roll against the work surface, that is the work roll 4. An alignment device 122 serves for aligning the contact roll in the delivery and application of the contact roll 78 to the work surface in order to avoid a one-sided contact and therewith a one-sided grinding of the roll 4. The alignment device 22 includes threaded shafts 124 on both sides of the contact roll 78, of which only one shaft is illustrated, with a rigidly locked contact surface 26, which is displaced rearwardly a few tenth millimeters from the working position of the grinding belt. Each threaded shaft 124 is fastened to a protective cover 128 for the floating support 90, which cover itself is connected with the axle 108 of the contact roll 78. If the contact roll 78 is unequally delivered, one of the two threaded shafts 124 come to rest on the roll 4 and brings the contact roll into essentially aligned position with the roll.
The control for the belt grinding mechanism through the fluid apparatus 102, which is preferably an air pressure apparatus, takes place in a way, not more specifically illustrated, such that first through the piston/cylinder unit 96 the grinding belt 76 has imparted to it a given tension force.
,.~ '"~
In connection with this the contact roll 78 through the axle 108 engages the associated piston/cylinder units llo, 112 in which the necessary counterpressure is built up. If the contact roll 78 is pushed forwardly against the work surface, that is against the roll 4, with the help of the piston/cylinder units 110, 112, the piston/cylinder unit 96 is retracted to the same measure, so that the once adjusted belt tension remains constant. Upon grinding the guide rolls 80, 82 serve for the stabilization of the grinding belt on the contact roll 78, especially when because of the contour of the work surface the contact roll 78 because of the floating support 90 takes on an angular position deviating from its base position. Because of the floating support 90 the contact roll 78 can follow the contour of a surface to be ground.
Thereby it is possible, without special measures to re-grind an existing surface especially to improve it. The fluid apparatus 12 provides that during straight line guiding of the belt grinding mechanism, the pressure at which the contact roll is applied to the work surface, and which contact roll may for example may be following a cambered contour of the work surface, is always held constant.
REFERENCE NUMBER LIST
I r~ , v ; ~
BELT GRINDER
The invention concerns a belt grinder according to the preamble of claim 1.
Belt grinders of the aforementioned kind are well known, for example from CH-PS 668 212. Such belt grinders are relatively complicated and accordingly their provision is very expensive, since they require special carriers as well as guide devices associated with the carriers, in order to guide the contact roll in keeping with the profile of the surface to be ground.
The object of the invention is to provide a belt grinder of the mentioned type which has a simple construction and which in a simple way adapts to the contour of the surface to be ground.
This object is inventively solved in the invention by the characterizing features of claim 1. The floating support for the contact roll makes possible its adaption to the contour of the surface to be ground, as for example the surface of a cambered roll, the inner and outer surfaces of containers, and the like, whereby the guide apparatus can be simplified and while yet achieving a high accuracy and surface finish quality.
Advantageous developments of the belt grinder are descrihed in claims 2 to 7. For the implementation of the floating support for the contact roll for the grinding belt diverse possibilities arise. An especially advantageous implementation is described in claim 2. The grinding accuracy can be improved by a further development according to claim 3, since then the pressure of the contact roll at all angular positions of the contact roll remains constant. Especially advantageous is a further development according to claim 4, which makes possible an automatic finely regulatable delivery of the belt grinder mechanism. For the tensioning of the grinding belt different implementation possibilities arise such as tensioning rolls and alike. Especially advantageous and simple is a development according to claim 5, whereby a symmetrical construction of the belt grinder mechanism is promoted. In it the belt tensioning apparatus in the simplest case can be made as a mechanical spring apparatus.
An especially advantageous implementation of the belt grinder is described in claim 6 which makes possible a delicate control of the grinder so that, for example, rolls with non-cylindrical surfaces over their entire lengths can be ground with an application pressure that remains constant. It involves a belt grinder that can be adjusted to the different grinding requirements so that a grinding with highest accuracy is possible.
Especially practical is the implementation of the grinder according to claim 7 which hinders the tilted application of the contact roll to the work roll and with it the production of fault type grinding marks.
Embodiments of the subject matt~r of the invention hereafter described in more detail in connection with schematic drawin~s which show:
Fig. 1 is a side view, in the direction of sliding movement, of a belt grinder applied to a work roll.
Fig. 2 is a top view of the belt grinder of Fig. 1.
Fig. 3 is a sectional view of the frame of the belt grinder taken along the line III-III of Fig. 4.
Fig. 4 is a sectional view of the frame of the belt grinder taken along the line IV-IV of Fig. 3.
Fig. 5 is a sectional view of the frame of the belt grinder with a supplemental securing apparatus taken along the line V-V of Fig. 6.
Fig. 6 is a right side view of the securing apparatus of Fig. 5.
Fig. 7 is a horizontal sectional view of the belt grinder of Fig. 1.
Figs. 1 and 2 are complete views of a belt grinder which is arranged on the scraper apparatus 2 of a roll 4, for example the roll of a paper machine. The belt grinder includes a frame 6 with rollers 8 which is placed on a scraper 10 of the scraping apparatus 2, the scraping apparatus 2 being shown in the condition of being pi~oted away from the roll 4. A frame 6 includes a holder 12 with an engagement roller 14, which laterally engages the carrier 16 of the scraping apparatus 2.
The actual belt grinder mechanism 18 is fastened to the frame 6.
The holder 12 has an upper arm 20 and a lower arm 22 which are fastened to the frame 6 and extend transversely to the plane of the rollers 8. Each arm 20, 22 is provided with a double clamping member 24 which itself is fixed to the associated arm 20, 22 by means of a clamping screw 26. A rod 28 is fixed to the clamping members so as to extend transversely to the arms and likewise is fixed by clamping screws 30. The engagement roller 14 is supported on the lower end of the rod with the plane of the roller 14 running perpendicular to the plane of the rollers 8.
With the help of the clamping members 24 the rod 28 can be adjusted as to its position on the arms 20, 22 as well as to its height. The arrangement of the holder 12 is such that the rod 28 is located along the length of the frame 6 halfway between the rollers 8. Thereby a three point support is achieved which is especially stable. Moreover this support makes it possible that the belt grinder mechanism 18 can be exchangably fastened at the cheeks 32, 34 of the frame 6. For this the belt grinder mechanism 18 is made so as to be essentially mirror image symmetrical with respect to the horizontal plane 36, so that through use of the mounting plate 38 forming part of the grinder mechanism the grinder mechanism can be selectively attached to either one of the two cheeks 32, 34.
Figs. 3 and 4 show details of the drive of the rollers 8 of the frame 6. As to this, the frame contains a drive motor 40 which through a drive 42 and a clutch 44 drives a drive wheel 46 for a toothed belt 48. The belt 48 is trained over two wheels 50, fastened to shafts 52, on which the rollers 8 are arranged.
~ 'igs. 5 and 6 show a supplementary securing mechanism 54 for securing the belt grinder to the scraper apparatus 2. In this case the scraper 10 of the scraper apparatus 2 is first replaced in the scraper apparatus 2 by an L shaped rail 56. The rollers 8 run on the rail 56. The securing mechanism 54 includes securing rollers 58 which are associated with the rollers 8 and which are pivotal into engagement with the inner side 60 of the L
shaped rail 56. For this the securing rollers 58 are fastened to a pivot axle 62 which in turn is pivotably supported in arms 64 on the frame 6. To the pivot axle 62 is fastened a lever 66 which is connected through a coupling member 68 with a threaded ¦spindle 70. The spindle 70 cooperates with a rotatably supported ¦sleeve 72 having a non-illustrated internal thread. The sleeve 172, which is rotatably supported in the frame 6, is provided with a hand crank 74. By rotation of the hand crank 74 the securing rollers 58 can be moved into and out of engagement with the inner side 60 of the L shaped rail 56 as well as be pressed against it.
Figs. 1, 2 and 7 show the belt grinding mechanism 18 in detail. The grinding belt 76 is guided over a floatingly supported contact roll 78, over fixedly positioned guide rolls 80, 82 adjacent both sides of the contact roll, and over a drive roll 86 driven by a drive motor 84. The drive motor 84 is arranged on a slide 88 which is arranged in a housing 92 containing the floating support 90 for the contact roll 78. A
belt tensioning device 94 serves to tension the grinding belt, which device cooperates with the slide 88 of the drive motor 84 and biases the drive roll 86 away from the contact roll 78. The belt tensioning device 94 includes a piston/cylinder unit 96 connected by conductors 98, lOo with a fluid mechanism 102. The floating support 90 for the contact roll 78 includes longitudinal guides 104, 106 contained in the housing 92 for the axle 108 on which the contact roll 78 is rotatably supported. The longitudinal guides 104, 106 extend perpendicularly to the surface to be worked, that is radially to the work roll 4. The axle 108 in the longitudinal guides 104, 106 is yieldingly engaged with piston/cylinder units 110, 112. In connection with this, the corresponding pressure spaces of the piston/cylinder units 110, 112 are connected with one another by connecting conductors 114, 116~ The piston/cylinder units 110, 112 are moreover connected by conductors 118, 120 to the fluid apparatus 102. The piston/cylinder units 110, 112 also serve at the same time for positioning the contact roll against the work surface, that is the work roll 4. An alignment device 122 serves for aligning the contact roll in the delivery and application of the contact roll 78 to the work surface in order to avoid a one-sided contact and therewith a one-sided grinding of the roll 4. The alignment device 22 includes threaded shafts 124 on both sides of the contact roll 78, of which only one shaft is illustrated, with a rigidly locked contact surface 26, which is displaced rearwardly a few tenth millimeters from the working position of the grinding belt. Each threaded shaft 124 is fastened to a protective cover 128 for the floating support 90, which cover itself is connected with the axle 108 of the contact roll 78. If the contact roll 78 is unequally delivered, one of the two threaded shafts 124 come to rest on the roll 4 and brings the contact roll into essentially aligned position with the roll.
The control for the belt grinding mechanism through the fluid apparatus 102, which is preferably an air pressure apparatus, takes place in a way, not more specifically illustrated, such that first through the piston/cylinder unit 96 the grinding belt 76 has imparted to it a given tension force.
,.~ '"~
In connection with this the contact roll 78 through the axle 108 engages the associated piston/cylinder units llo, 112 in which the necessary counterpressure is built up. If the contact roll 78 is pushed forwardly against the work surface, that is against the roll 4, with the help of the piston/cylinder units 110, 112, the piston/cylinder unit 96 is retracted to the same measure, so that the once adjusted belt tension remains constant. Upon grinding the guide rolls 80, 82 serve for the stabilization of the grinding belt on the contact roll 78, especially when because of the contour of the work surface the contact roll 78 because of the floating support 90 takes on an angular position deviating from its base position. Because of the floating support 90 the contact roll 78 can follow the contour of a surface to be ground.
Thereby it is possible, without special measures to re-grind an existing surface especially to improve it. The fluid apparatus 12 provides that during straight line guiding of the belt grinding mechanism, the pressure at which the contact roll is applied to the work surface, and which contact roll may for example may be following a cambered contour of the work surface, is always held constant.
REFERENCE NUMBER LIST
2 Scraper Apparatus 4 Roll 6 Frame 8 Roller Scraper 12 Holder 14 Engagement Roller 16 Carrier 18 Belt Grinding Mechanism Upper Arm 22 Lower Arm 24 Clamping Member 26 Clamping Screw 28 Rod Clamping Screw 32 Cheek 34 Cheek 36 Horizontal Plane 38 Mounting Plate Drive Motor 42 Drive 44 Clutch 46 Drive Wheel ~ ' J
¦48 Toothed Belt ¦ 50 Toothed Wheel 2 Shaft 54 Securing Apparatus 56 L-Shaped Rail 58 Securing Roller Inner Side 62 Pivot Axle 64 Arm 66 Lever 68 Coupling Member Spindle 72 Sleeve 74 Hand Crank 76 Grinding Belt 78 Contact Roll Guide Roll 82 Guide Roll 84 Drive Motor 86 Drive Roll 88 Slide Floating Support 92 Housing 94 Band Tensioning Device 96 Piston/Cylinder Unit 98 Conductor 100 Conductor 102 Fluid Apparatus ¦104 Longitudinal Guide 106 Longitudinal Guide 108 Axle 110 Piston/Cylinder Unit 112 Piston/Cylinder Unit l 114 Connecting Conductor I ¦ 116 Connecting Conductor 118 Conductor 120 Conductor 122 Alignment Apparatus 124 Threaded Shaft 126 Contact Surface 128 Protective Cover
¦48 Toothed Belt ¦ 50 Toothed Wheel 2 Shaft 54 Securing Apparatus 56 L-Shaped Rail 58 Securing Roller Inner Side 62 Pivot Axle 64 Arm 66 Lever 68 Coupling Member Spindle 72 Sleeve 74 Hand Crank 76 Grinding Belt 78 Contact Roll Guide Roll 82 Guide Roll 84 Drive Motor 86 Drive Roll 88 Slide Floating Support 92 Housing 94 Band Tensioning Device 96 Piston/Cylinder Unit 98 Conductor 100 Conductor 102 Fluid Apparatus ¦104 Longitudinal Guide 106 Longitudinal Guide 108 Axle 110 Piston/Cylinder Unit 112 Piston/Cylinder Unit l 114 Connecting Conductor I ¦ 116 Connecting Conductor 118 Conductor 120 Conductor 122 Alignment Apparatus 124 Threaded Shaft 126 Contact Surface 128 Protective Cover
Claims (7)
1. A belt grinder with a grinding belt (76) running over a drive roll (86) and a contact roll (78) as well as a belt tensioning device (94), characterized in that the contact roll (78) is floatingly supported and includes guide rolls (80, 82) for the grinding belt on both sides of the contact roll.
2. A belt grinder according to claim 1, characterized in that the axle (108) of the contact roll (78) is supported in longitudinal guides (104, 106) which are arranged perpendicular to the work surface (4) with the axle (108) preferably being yieldingly engaged on both sides of the contact roll (78).
3. A belt grinder according to claim 2, characterized in that the axle (108) of the contact roll (78) is engaged on both sides of the contact roll (78) by piston/cylinder units (110, 112) whose corresponding pressure spaces are connected with one another by a conductor (114, 116).
4. A belt grinder according to claim 3 further characterized in that the piston/cylinder units (110, 112) are connected to a fluid apparatus (102) and are adapted to deliver the contact roll (78) to the work surface (4).
5. A belt grinder according to one of claims 1 to 4 characterized in that it includes a drive motor (84) arranged on a slidably supported slide (88) and having a drive roll (86) for the grinding belt (76) with the slide being connected with the belt tensioning device (94).
6. A belt grinder according to claims 4 and 5 characterized in that the belt tensioning device (94) includes a piston/cylinder unit (96) cooperating with the slide (88) of the drive motor (84) which unit (96) through the fluid apparatus (102) cooperates with the piston/cylinder units (110, 112) of the contact roll (78) so that the belt tension force during the delivery of the contact roll (78) and/or the working remains essentially constant.
7. A belt grinder according to one of claims 1 to 6, characterized in that the grinding mechanism (18) includes an alignment apparatus (22) for aligning the contact roll (78) relative to the work surface (4) while delivering the contact roll to the work surface (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH229691 | 1991-07-31 | ||
| CH2296/91-5 | 1991-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2092994A1 true CA2092994A1 (en) | 1993-02-01 |
Family
ID=4230466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002092994A Abandoned CA2092994A1 (en) | 1991-07-31 | 1992-06-30 | Belt grinder |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0553311A1 (en) |
| JP (1) | JPH06502593A (en) |
| KR (1) | KR930702121A (en) |
| CN (1) | CN1069923A (en) |
| CA (1) | CA2092994A1 (en) |
| WO (1) | WO1993002835A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001049451A1 (en) * | 1999-12-31 | 2001-07-12 | Voith Paper Patent Gmbh | Grinder |
| DE102005035581A1 (en) * | 2005-07-29 | 2007-02-01 | Rosink Gmbh + Co. Kg Maschinenfabrik | Device for grinding spinning cylinders |
| EP2537633B1 (en) * | 2011-06-24 | 2014-05-07 | Comadur S.A. | Bevel machining system |
| CN103406821A (en) * | 2013-07-12 | 2013-11-27 | 海安县吉程机械有限公司 | Linear-type line hair-cracking machine |
| CN110003927B (en) * | 2019-04-04 | 2020-11-17 | 华北电力大学 | Grinding belt type biomass rapid catalytic pyrolysis device and method |
| CN110561240A (en) * | 2019-10-16 | 2019-12-13 | 珠海大华新材料有限公司 | High-performance copper alloy strip grinding device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3889424A (en) * | 1971-09-13 | 1975-06-17 | Scott Paper Co | Apparatus for resurfacing the cylindrical face of large drier drums |
| ES489050A0 (en) * | 1980-02-28 | 1980-12-01 | Zur Lan Constr Sa | IMPROVEMENTS INTRODUCED IN SANDING MACHINES |
| JPS59156507A (en) * | 1983-02-25 | 1984-09-05 | Ishikawajima Harima Heavy Ind Co Ltd | Grinding device of rolling roll |
| SU1313660A1 (en) * | 1985-12-03 | 1987-05-30 | Экспериментальная Фабрика Спортизделий "Динамо" | Device for oscillating abrasive band |
-
1992
- 1992-06-30 KR KR1019930701012A patent/KR930702121A/en not_active Application Discontinuation
- 1992-06-30 CA CA002092994A patent/CA2092994A1/en not_active Abandoned
- 1992-06-30 EP EP92913000A patent/EP0553311A1/en not_active Withdrawn
- 1992-06-30 WO PCT/CH1992/000132 patent/WO1993002835A1/en not_active Application Discontinuation
- 1992-06-30 JP JP5503150A patent/JPH06502593A/en active Pending
- 1992-07-31 CN CN92108865A patent/CN1069923A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN1069923A (en) | 1993-03-17 |
| JPH06502593A (en) | 1994-03-24 |
| KR930702121A (en) | 1993-09-08 |
| EP0553311A1 (en) | 1993-08-04 |
| WO1993002835A1 (en) | 1993-02-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |