DE466008C - Clamping and tensioning device for the flexible abrasive coating of sanding drums - Google Patents

Clamping and tensioning device for the flexible abrasive coating of sanding drums

Info

Publication number
DE466008C
DE466008C DEM98808D DEM0098808D DE466008C DE 466008 C DE466008 C DE 466008C DE M98808 D DEM98808 D DE M98808D DE M0098808 D DEM0098808 D DE M0098808D DE 466008 C DE466008 C DE 466008C
Authority
DE
Germany
Prior art keywords
clamping
cylinder
tensioning device
abrasive coating
flexible abrasive
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.)
Expired
Application number
DEM98808D
Other languages
German (de)
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.)
MASCHINENFABRIK
Original Assignee
MASCHINENFABRIK
Publication date
Priority to DEM98808D priority Critical patent/DE466008C/en
Application granted granted Critical
Publication of DE466008C publication Critical patent/DE466008C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D9/00Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
    • B24D9/04Rigid drums for carrying flexible material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Description

Klemm- und Spannvorrichtung für den biegsamen Schleifbelag von Schleiftrommeln Es sind bereits Klemm- und Spannvorrichtungen für den biegsamen Schleifbelag von Schleiftrommeln bekannt,- die aus einem im Trommelzylinder drehbaren, die Belagenden aufnehmenden Wickelzylinder bestehen. Diese Wickelzylinder sind jedoch exzentrisch zur Trommelachse angeordnet und bilden somit eine einseitige Belastung für die umlaufende Trommel.Clamping and tensioning device for the flexible abrasive coating on sanding drums There are already clamping and tensioning devices for the flexible abrasive coating from Grinding drums known - those from a rotatable in the drum cylinder, the lining ends receiving winding cylinder exist. However, these winding cylinders are eccentric arranged to the drum axis and thus form a one-sided load for the rotating one Drum.

Diesem Gbelstande wird durch die Erfindung in wirksamster Weise dadurch abgeholfen, daß die Drehachse des Wickelzylinders in die Trommelachse gelegt ist, wodurch eine einseitige, den Gewichtsausgleich der umlaufenden Trommel beeinflussende Belastung vermieden wird.This situation is most effectively achieved by the invention helped that the axis of rotation of the winding cylinder is placed in the drum axis, whereby a one-sided, influencing the weight balance of the rotating drum Load is avoided.

in der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt; es zeigen: Abb. i eine teilweise Seitenansicht mit Längsschnitt durch den Schleifzylinder, Abb, 2 einen Querschnitt durch Abb. i beim Einspannen des Schleifpapiers. und Abb. 3 einen gleichen Querschnitt mit straff gespanntem Schleifpapier.in the drawing an embodiment of the invention is shown; They show: Fig. i a partial side view with a longitudinal section through the grinding cylinder, Fig. 2 shows a cross section through Fig. I while clamping the sandpaper. and fig. 3 shows the same cross-section with sandpaper tensioned taut.

Der Schleifzylinder a ist lose auf die Spindel b aufgeschoben und wird durch die Gewindemutter c in seiner Lage auf der Spindel b gehalten. In dein Zylinder a ist erfindungsgemäß ein Schlitz d von geeigneter Länge und Breite vorgesehen. Die Spindel b weist einen gleichartigen Schlitz e auf, welcher durch Verdrehen des Zylinders a mit dessen Schlitz d in Deckung gebracht werden kann (Abb. i und 2). Wird nun in dieser Stellung das Schleifpapier f lose uni den Zylinder a gelegt und die Papierenden in die korrespondierenden Schlitze d und e eingeschoben, so wird durch Verdrehen .ies Zylinders a in Pfeilrichtung A (Abb. 3) ein gleichmäßiges und straffes Anziehen des Schleifpapiers f tun die Zylindermantelfläche erzielt. Nachdem durch Anziehen der Mutter c der Zylinder a auf der Spindel b gesichert worden ist, kann das Schleifen in Pfeilrichtung B beginnen, wobei das Schleifpapier f sich nieinals lockern kann, selbst dann nicht, wenn durch ein Versehen die Mutter c nicht bcharf genug angezogen ist. Das Schleifpapier f wird infolge des entgegengesetzten Aufspannens zur Drehrichtung des Zylinders a und der Spindel b stets in seiner straffen Lage erhalten. Diese Vorrichtung ermöglicht also nicht nur ein schnelles und ordnungsmäßiges Aufspannen des Schleifpapiers um seinen Zylinder, sondern sichert auch dessen straffe Lage beim Schleifen. Durch Verlegung der Drehachse des Wickelzylinders in die Trommelachse wird außerdem eine einseitige Belastung der Trommel und damit eine besondere Einrichtung für den Gewichtsausgleich vermieden.The grinding cylinder a is pushed loosely onto the spindle b and is held in its position on the spindle b by the threaded nut c. According to the invention, a slot d of suitable length and width is provided in the cylinder a. The spindle b has a similar slot e, which can be brought into congruence with its slot d by turning the cylinder a (Figs. I and 2). If, in this position, the sandpaper f is placed loosely and the cylinder a and the paper ends are pushed into the corresponding slots d and e, then by turning the cylinder a in the direction of arrow A (Fig. 3), the sandpaper f is tightened evenly and tightly do the cylinder surface achieved. After the cylinder a has been secured on the spindle b by tightening the nut c, sanding can begin in the direction of arrow B, whereby the sandpaper f can never loosen, even if the nut c is accidentally not tightened sufficiently . The sandpaper f is always kept in its tight position as a result of the opposite clamping to the direction of rotation of the cylinder a and the spindle b. This device therefore not only enables the sanding paper to be stretched quickly and properly around its cylinder, but also ensures that it is in a tight position during sanding. By relocating the axis of rotation of the winding cylinder to the drum axis, one-sided loading of the drum and thus a special device for counterbalancing is avoided.

Claims (1)

PATENTANSPRUCH: Klemm- und Spannvorrichtung für den biegsamen Schleifbelag von Schleiftrommeln, bestehend aus einem im Trommelzylinder drehbaren, die Belagenden aufnehmenden Wickelzylinder, dadurch gekennzeichnet, daß die Drehachse des Wikkelzylinders in die Trommelachse gelegt ist, um eine einseitige, den Gewichtsausgleich der umlaufenden Trommel beeinflussende Belastung zu vermeiden.PATENT CLAIM: Clamping and tensioning device for the flexible abrasive coating of grinding drums, consisting of one rotatable in the drum cylinder, the lining ends receiving winding cylinder, characterized in that the axis of rotation of the winding cylinder is placed in the drum axis to a one-sided, the counterbalance of the rotating Avoid loads affecting the drum.
DEM98808D Clamping and tensioning device for the flexible abrasive coating of sanding drums Expired DE466008C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM98808D DE466008C (en) Clamping and tensioning device for the flexible abrasive coating of sanding drums

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM98808D DE466008C (en) Clamping and tensioning device for the flexible abrasive coating of sanding drums

Publications (1)

Publication Number Publication Date
DE466008C true DE466008C (en) 1928-09-29

Family

ID=7323894

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM98808D Expired DE466008C (en) Clamping and tensioning device for the flexible abrasive coating of sanding drums

Country Status (1)

Country Link
DE (1) DE466008C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0006400A1 (en) * 1978-09-13 1980-01-09 Walter Oberer Cylindrical mandrel for an abrasive sheet of a given size

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0006400A1 (en) * 1978-09-13 1980-01-09 Walter Oberer Cylindrical mandrel for an abrasive sheet of a given size

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