DE299324C - - Google Patents
Info
- Publication number
- DE299324C DE299324C DENDAT299324D DE299324DA DE299324C DE 299324 C DE299324 C DE 299324C DE NDAT299324 D DENDAT299324 D DE NDAT299324D DE 299324D A DE299324D A DE 299324DA DE 299324 C DE299324 C DE 299324C
- Authority
- DE
- Germany
- Prior art keywords
- stone
- grained
- layers
- fine
- grinding
- 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.)
- Active
Links
- 239000004575 stone Substances 0.000 claims description 11
- 239000002023 wood Substances 0.000 claims description 4
- 229920002522 Wood fibre Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002025 wood fiber Substances 0.000 description 2
- 101700050571 SUOX Proteins 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D5/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor
- B24D5/14—Zonally-graded wheels; Composite wheels comprising different abrasives
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMTPATENT OFFICE
Durch Patent 275953 ist "ein Schleifstein für die Holzschleiferei geschützt, dessen kennzeichnendes Merkmal darin besteht, daß die Schichten des Steins eine von der zur Drehungsachse senkrecht stehenden Ebene abweichende Richtung haben. Durch diese Ausbildung des Schleifsteins soll der Nachteil der bekannten Schleifsteine, daß die in senkrecht' zur Achse des Steines stehenden Ebenen liegenden Schichten in das Holz Furchen einschneiden und dadurch die Ausbeute an geschliffenem Stoff verschlechtern, vermieden werden.By patent 275953 is "a grindstone for the wood grinding shop, the distinguishing feature of which is that the layers of the stone have a direction deviating from the plane perpendicular to the axis of rotation. Through this training of the Grindstone is said to have the disadvantage of the known grindstones that they are perpendicular to the axis of the stone's standing layers cut into the wood grooves and thereby reduce the yield of sanded fabric.
Es hat sich gezeigt, daß die, Schleifwirkung noch gesteigert werden kann, wenn man denIt has been shown that the grinding effect can be increased if you use the
J5 Schleifstein nach Patent 275053 aus verschiedenartigen Schichten zusammensetzt, den Schleifstein also nicht so, wie bisher, aus einer gleichförmigen, nach Bedarf fein- oder grobkörnigen Masse erzeugt, sondern aus einzelnen Schichten, die in regelmäßigem oder unregelmäßigem Wechsel fein- und grobkörnig sind. Durch diese Art der Herstellung wird die Ausbeute noch gesteigert, dabei wird der Kraftbedarf herabgesetzt, indem die Holzfasern leichter abgetrennt werden.J5 whetstone according to patent 275053 made of various types Layers, so the grindstone does not consist of a uniform, fine or coarse-grained mass produced as required, but from individual layers, which are fine and coarse-grained in regular or irregular alternation. By This type of production increases the yield even further, while the power requirement is increased reduced by separating the wood fibers more easily.
Die Zeichnung zeigt eine Ausführungsforni des gemäß der Erfindung hergestellten Schleifsteins. The drawing shows an embodiment of the grindstone made according to the invention.
Die Schräglage der Steinschichten zur Drehwelle α wird dadurch erreicht, daß man dem Stein b die Form eines Schrägzylinders gibt, der auf die Welle so aufgekeilt wird, daß seine Erzeugenden parallel zur Welle liegen. Der Stein, selbstverständlich ein künstlich erzeugter Stein, ist aus mehreren Schichten zusammengesetzt, die in der Zeichnung durch Schraffur voneinander unterschieden sind, wobei z. B. die unschraffierten Schichten aus grobkörnigem, : die schraffierten Schichten aus feinkörnigem Stoff bestehen. Durch diese verschiedenartige · Schichtung und durch die geneigte Lagerung der Schichten wird erreicht, daß die durch eine grobkörnige Schicht erzeugte Spurfährte durch eine feinkörnige Schicht nachbearbeitet wird; es entstehen daher zunächst tiefe Furchen, die dann durch die feinkörnige Schicht geglättet werden. Durch diesen Vorgang erfolgt ein leichtes Losreißen und Trennen der Holzfasern vom Holzkörper bei einem bedeutend kleineren Kraftaufwand und einer Vergrößerung der Ausbeute.The inclined position of the stone layers relative to the rotary shaft α is achieved by giving the stone b the shape of an inclined cylinder which is keyed onto the shaft in such a way that its generators are parallel to the shaft. The stone, of course an artificially produced stone, is composed of several layers, which are distinguished from one another in the drawing by hatching. B. the unshaded layers of coarse-grained,: the hatched layers consist of fine-grained material. This different kind of layering and the inclined positioning of the layers ensures that the track created by a coarse-grained layer is reworked by a fine-grained layer; therefore, deep furrows initially appear, which are then smoothed out by the fine-grained layer. As a result of this process, the wood fibers are easily torn and separated from the wood body with a significantly smaller expenditure of force and an increase in the yield.
Die Herstellung des neuen Schleifsteins erfolgt in an sich bekannter Weise durch Formen, nur mit dem Unterschied, daß man zweierlei Massen — eine grobkörnige und eine feinkörnige — bereithält und dieselben abwechselnd in die Form einträgt.The production of the new grindstone takes place in a manner known per se by shaping, only with the difference that there are two types of mass - a coarse-grained and a fine-grained one - has ready and enters them alternately in the form.
Die Höhe der Schichten hängt von der Breite der Schleiffläche und von der Neigung der Steinschichten zur Drehwelle ab und wirdThe height of the layers depends on the width of the sanding surface and the slope the stone layers to the rotating shaft and becomes
Claims (2)
Publications (1)
Publication Number | Publication Date |
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DE299324C true DE299324C (en) |
Family
ID=553429
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT299324D Active DE299324C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE299324C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4235277A1 (en) * | 1992-10-20 | 1994-04-21 | Blohm Maschinenbau Gmbh | Multi-disk grinding wheel and associated grinding process - involves wheel consisting of series of disks which have abrasive layer around periphery and which are bound together on axis with intervening spacers |
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0
- DE DENDAT299324D patent/DE299324C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4235277A1 (en) * | 1992-10-20 | 1994-04-21 | Blohm Maschinenbau Gmbh | Multi-disk grinding wheel and associated grinding process - involves wheel consisting of series of disks which have abrasive layer around periphery and which are bound together on axis with intervening spacers |
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