DE1752264B2

DE1752264B2 - PRESSURE SHOE FOR USE ON BELT SANDING MACHINES

Info

Publication number: DE1752264B2
Application number: DE19681752264
Authority: DE
Inventors: Toshio Nagoya Takekasa (Japan)
Original assignee: Takekawa Tekko K K , Nagoya (Japan)
Priority date: 1968-04-27
Filing date: 1968-04-27
Publication date: 1973-05-17
Also published as: DE1752264A1; DE1752264C3

Description

Ein solcher Druckschuh ist beispielsweise aus der und die übrigen genannten Teile am Gehäuse 1 haischweizerischen Patentschrift 423 535 bekannt. Bei 40 tenden Abdeckband 6 aus Leder, Glasfasergewebe diesem ist der Druckverteiler jedoch einstückig als od. dgl.Such a pressure shoe is made up of, for example, the and the other named parts on the housing 1 from Haisch Swiss Patent specification 423 535 known. At 40 tend masking tape 6 made of leather, fiberglass fabric However, this is the pressure distributor in one piece than od. Like.

verhältnismäßig steife vom Druckkissen beauf- Das Gehäuse 1 weist einen U-förmigen QuerschnittThe housing 1 has a U-shaped cross section

schlagte Druckplatte ausgebildet. Die Verstellbarkeit (F i g. 2) auf und besitzt an der Oberkante nach der Druckplatte in Richtung auf das Werkstück ist außen überstehende Führungsflansche 7, mit denen nicht in definierter Weise begrenzt. Die verhältnis- 45 es am weiter nicht dargestellten Druckschuhträger mäßig steife Ausbildung der Druckplatte ist erforder- der Bandschleifmaschine befestigbar ist. Die unteren lieh, um eine einwandfreie Bearbeitung des Werk- Enden 8 der beiden Seitenwände 9 des U-förmigen Stückes auch im Bereich der Ränder zu ermöglichen. Gehäuses 1 sind als Anschläge 10 einwärts gebogen, Ein weniger steifer Druckverteiler würde nämlich in so daß zwischen ihnen eine Aufnahme gebildet ist, in dem über den Rand überstehenden Bereich keinen 5° welcher das Druckkissen 3 angeordnet ist. Unter dem entsprechenden Widerstand finden, was einen ver- Druckkissen 3 ist der Druckverteiler 4 angeordnet, stärkten Abschliff des Werkstückes im Bereich seiner welcher aus mehreren Stäben 4' besteht, die aus Me-Kanten zur Folge hätte. Bei Verwendung eines genü- tall gefertigt sind und die parallel zur Laufrichtung gend steif ausgebildeten Druckverteilers zeigt sich je- des Schleifbandes 2 angeordnet sind. Die Stäbe 4' doch, daß geringe Unebenheiten der Oberfläche des 55 können jeden gewünschten Querschnitt, und zwar Werkstückes, z. B. durch arbeitendes Holz bei Holz- beispielsweise einen quadratischen oder auch kreisplatten hervorgerufene Unebenheiten, nicht kurzfri- runden aufweisen. Vorzugsweise liegen die Enden stig vom Schleifband erfaßt und abgeschliffen wer- der Stäbe 4' auf den einwärts gebogenen Anschlägen den können. Um eine gleichmäßige Oberflächenbe- 10 der Schenkel des U-förmigen Gehäuses 1 auf, so schaffenheit mit dem bekannten Druckschuh zu er- 60 daß das Druckkissen 3 nicht aus dem Gehäuse 1 herreichen, ist daher zumeist ein mehrmaliges Bearbei- ausdringen kann, falls über die Zuleitung 11 zu viel ten der Oberfläche des Werkstückes erforderlich. Luft zugeführt wird.hit pressure plate formed. The adjustability (F i g. 2) on and has on the upper edge the pressure plate in the direction of the workpiece is externally protruding guide flanges 7 with which not limited in a defined way. The ratio 45 it on the pressure shoe carrier, not shown further a moderately stiff design of the pressure plate is required - the belt grinder can be attached. The lower borrowed to ensure proper processing of the work ends 8 of the two side walls 9 of the U-shaped To allow piece also in the area of the edges. Housing 1 are bent inwards as stops 10, A less stiff pressure manifold would be in such a way that a receptacle is formed between them, in the area which protrudes over the edge is not 5 ° in which the pressure pad 3 is arranged. Under the find appropriate resistance, which is a pressure pad 3, the pressure distributor 4 is arranged, increased abrasion of the workpiece in the area of its which consists of several rods 4 ', which consist of Me-edges would result. When using a metal, they are made parallel to the direction of travel The pressure distributor, which is designed to be stiff, shows that each grinding belt 2 is arranged. The bars 4 ' However, that slight unevenness in the surface of the 55 can have any desired cross-section, namely Workpiece, e.g. B. by working wood with wooden, for example, a square or circular plates show unevenness, not short-term. Preferably the ends are lying The rods 4 'are constantly gripped by the grinding belt and ground off on the inwardly curved stops the can. In order to have a uniform surface area 10 of the legs of the U-shaped housing 1, so the ability to achieve 60 with the known pressure shoe that the pressure pad 3 does not reach out of the housing 1, is therefore usually a multiple processing can come out, if too much via the supply line 11 th of the surface of the workpiece is required. Air is supplied.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

1J 2 The invention is therefore based on the object of patent claims: - 'äen known pressure shoe so that it can be without any significant impairment of itself

1. Pressure shoe for use on rigid grinding machines that relate to the entire support surface, consisting of a housing, 5 speed local workpiece unevenness better to one able to fit on the side facing the grinding belt.

of the housing adjacent inflatable pressure This object is achieved according to the invention

cushion, one resting against the pressure cushion, that the pressure distributor is made up of a large number of Pressure distributor, one on the pressure distributor, parallel to each other and parallel to the direction of travel lowing elastic sanding pad and a rod arranged at the xo of the sanding belt and Abrasive cushion and the rest of the TeOe mentioned that there are stops on the housing that denote the Housing holding. Masking tape, thereby limiting vertical freedom of movement of the bars, characterized in that the pressure distributor are expediently used as stops after

(4) from a multiplicity of lower ends of the side walls which are bent over in parallel next to one another on the inside and used parallel to the running direction of the sliding belt 15 of the housing.

(2) arranged rods (4 ^ and that on the bars serving as pressure distributors can

Housing (1) stops (10) are provided, which individually address the unevenness of the surface of the adjust the vertical range of motion of the rods workpiece and thus enable a (4 ') limit. of slight bumps on the unprocessed

2. Pressure shoe according to claim 1, characterized in that the workpiece is largely independent and uniform indicates that the stops (10) after machining the workpiece surface. Simultaneously When the lower ends of the sides are bent over, the stops will cause excessive abrasion walls (9) of the housing (1) are used. of the workpiece in the edge area avoided.

In the following, an exemplary embodiment of the invention is explained in more detail with reference to the drawing, it shows

F i g. 1 shows a longitudinal section through a pressure shoe according to the invention and

2 shows a cross section through the object

The invention relates to a pressure shoe for compression 30 according to FIG. 1 along the section line AA.
Turning on belt grinders, consisting of the pressure shoe shown in the figures

a housing, one on which the grinding belt is pulled - essentially consists of a housing 1, one on reversed side of the housing, the inflatable side of the housing pressure pad facing the grinding belt 2, a sesl adjacent to the pressure pad, example pressure distributor via a supply line 11, a pressure cushion 3 which is adjacent to the pressure distributor and can be inflated by means of compressed air, elastic sanding pad and one the sanding pad a pressure distribution on the pressure pad 3 and the other parts mentioned on the housing holder 4, an elastid bearing against the pressure distributor 4 Masking tape. see the sanding pad 5 and one the sanding pad 5