DE1994278U - TANDEM, BELT AND DISC SANDING MACHINE FOR BOTH SIDED PRE-SANDING AND FINISHING, IN PARTICULAR FOR SANDING WINDOW SASHS, FRAMES, CLOTHING AND DOORS MADE OF WOOD, LIGHT METAL AND PLASTICS. - Google Patents

Description

P.A. 260 459 * - f.b.

RICHARD STÄHLE KG. ° Mechanical engineering · 7317 WENDUNGEN

Sheet 2 to the letter of 6.5.19 68 to the German Patent Office 8 Munich 2

"Tandem belt and disc sanding machine for double-sided pre- and Finished grinding, especially for grinding window sashes, Frames, cladding and doors made of wood, light metal and plastics. "

The innovation relates to a device for processing workpieces, especially for sanding window sashes, frames, cladding and moldings. Due to the special arrangement of the opposite and offset disc sanding units and belt sanding units, it is possible to coarsely pre-sand and finish-sand in one operation, so that an efficient production is achieved. The two disc grinding units are used for rough pre-grinding and large chip removal, while the offset belt grinding units which are also arranged at an angle of 15 ° to the main working direction, finish-cutting and thus the exact one Micrograph j which shows the wood grain particularly clearly lets, as it is generally demanded today, produced

In the drawing, an exemplary embodiment of this tandem belt and disc grinding machine for rough and finish grinding on both sides is shown schematically as an exemplary embodiment of the subject of the innovation.
It shows:

Figure 1) Front view of the first embodiment ₀

On a machine frame (1) there are two disc grinding units (2) arranged opposite one another and these carry the sanding pad C3). " Then the belt grinding units (M-) are offset against each other their sanding belts (5). The feed of the workpiece is through three feed units (6), which are driven uniformly by a rotating drive member (7), made. Through the Begel gear (8) the workpiece is fed through the Machine made at an infinitely variable speed » The two opposite belt sanding units are opposite each other at an angle of e.g. 15 °; the working direction is set. This measure makes an excellent micrograph of special high quality and accuracy is achieved and especially the Angles and corners are not visible,

-3-

RICHARD STÄHLE KG. . Mechanical engineering ..7317 TURNS ^ J

sheet 3 WRITING FROM 6.5.19 68 to the German Patent Office 8 Munich 2

The opposing grinding units can also be equipped with different grits of abrasive grinding wheels Bander or 6%, to thereby achieve different grinding quality can _three of the founders efficient production "

Claims (9)

; A. 434 302 * 25 7 fif) RICHARD STÄHLE KG. Mechanical engineering · 7317 WENDUNGEN BLATi «- to write from July 23, 1968 to the German Patent Office 8 Munich 2 φ, g A HiH vjeTsi Oiesa Unterlagt (ewsfrwitwtijt» «» »Scnuuaflspr j is a» abundantly submitted, she iveicW »on the ffsr; | The legal significance of the deviation is not. The originally »ingaröichian ünteriO'jeT is! is located in -Jen Amfsokfen from this also fotokOfien or FtIm- «» eoofive at dsp Obiichec prices tjsliefert OeutSO-hes Poteritamt. Oebrouchsmuslwsfeila protection claims 1. "Tandem belt and disc grinding machine for double-sided rough and finish grinding, especially for grinding window sashes ₉ frames» Cladding and doors made of wood, light metal and plastics, characterized in that the special structural arrangement has two opposing disc grinding units 2 and 3, two opposing belt sanding units 4 and 5 follow, which allow the sanding of a workpiece on both opposite sides simultaneously in coarse sanding and also finish sanding in one work step and each of which is height adjustable, 2. Apparatus according to claim 1, characterized. » that the both belt grinding units mutually offset and in a certain Angle e.g. 15 ° are arranged obliquely to the main working direction. 3. Apparatus according to claim 1, characterized in that in the Grinding machine the grinding belt 5 j which over the support rollers runs at an angle of e.g. 1-2 ° in relation to the horizontal upper side of the workpiece and is also set is set at right angles to it again with the same setting angle of e.g. 1-2 ° to prevent that when sanding at the corners of the frames, window sashes, etc., there are grinding approaches. 4. Apparatus according to claim 1, characterized in that both the sanding plate units 2, as well as the belt sanding units Λ, with the same or different grit sizes of the sanding pad 3 and sanding belts 5 are covered. • 3- JU ^ * i 3. 7:03. RICHARD STÄHLE KG. · Mechanical engineering 7317 UTILITIES sheet 3 to the letter dated July 23, 1968 to the German Patent Office 8 Munich 2 5. The apparatus of claim I _{9 9} characterized in that the grinding an exhauster-gefeänse has built ₉ of the immediately sucks the swarf at each grinding unit. 6. Apparatus according to claim I ₉ . characterized ₉ that at least 2 feed _{units 6 9} which automatically transport the workpiece through the grinding machine _{9 are} attached to the grinding machine. 7. Apparatus according to claim I _9, characterized in ₉ that instead of the feed devices 6 for transporting the workpiece through the grinding machine, this is also equipped with a revolving endless link such as a toothed chain, 8. The apparatus of claim I _{9 9} characterized in that the grown on the grinding machine feeders have 6 ₉ infinitely variable feed speeds, the place through the machine continuously make the Werkstücktranspä?. 9. Apparatus according to claim I _9, characterized in that the grinding machine with a frequency-p converter u '. the same .. is equipped for one or more grinding motors to increase the speed.