DE8214991U1 - GRINDING WHEEL - Google Patents

Description

Fabritius, Hans J., Am Roggenkamp 57, 4400 Münster-Hi Ltrup

/ grinding wheel " /

The invention relates to a working wheel serving as a grinding wheel with a drive wheel, being on the back of the working disk and the On the front side of the drive pulley, parts of an adhesive fastener that interact with one another are provided, and on the working side of the work disc fixedly arranged grinding bodies or work equipment are provided.

Devices of the generic type are known. In the known devices are in particular

the holding means I arranged on the drive pulley the adhesive fastener, d. H. so the actual hook I

■ I was glued on. For grinding devices that

should have a long service life, a heating

men of the tick disc in such a way that the connection |

adhesive between the actual drive pulley |

and the tick-disc loosens, which means that the overall reserve

tion becomes unusable. So far only up to!

a working temperature of 130 can be worked. S.

Intermediate rest periods that lead to a cooling down |

the drive pulley were required when. |.

the tool should not be rendered unusable. |

There are of course known adhesives that are also highly heat-resistant

s are firm and the one working temperature of the tick j

disc above 130 °. Such But adhesives are so expensive in their cost price that so that an economical production of simple work tools is not possible.

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also cost temperatures of a work and drive pulley can be achieved that reach up to 250, so that thus considerably longer service lives can be achieved.

The invention is based on the object of an arrangement

to create with the simple manufacturing ί

This object on which the invention is based is achieved solved by the features mentioned in the claims, i.e., according to the invention, the check mark is now be, which is attached to the drive pulley, does not more glued on, but rather cast directly into the material of the drive pulley when the drive pulley is cast. Through this intimate connection the tick disc is done with the drive disc Good heat dissipation in the actual drive pulley, which is able to absorb and dissipate higher temperatures, since its free surface is relatively large.

At the same time, the invention relates to the design of the working disk, which, according to an essential feature of the invention, consists of a textile velor exists, - which is unilaterally untreated - namely on the side in which he made the adhesive of the tick disk comes into contact and on the other side | is finished, then a phenolic resin layer is applied to the finished side and then the abrasive compound is applied, which is preferably applied electrostatically and then in the phenol resin layer is set.

Surprisingly, it was found that with one Such a procedure can achieve significantly longer tool life and higher temperatures can be driven so that the tool according to

of the invention also for long working hours, i.e. fj

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high heating of the panes can be used can.

An embodiment of the invention is given below explained with reference to the drawing.

The drawing shows in

Fig. 1 is a diagram to illustrate the subject of the application a working disk with

a drive pulley ^ being of course the drive pulley also in terms of design can be designed differently and in

Fig. 2 on an exaggeratedly large scale and pure schematically the training according to the inventor

manure.

In Fig. 1, 1 is a drive pulley and 2 is a Working disk designated. The drive pulley is made of polyurethane and is manufactured using a casting process and carries a shaft connection 3 for connection to the motor tool.

The hook washer is on the outside of the drive pulley 4 of an adhesive fastener, while on the back of the working disk 2, the eyelet disk of the adhesive fastener is provided in the drawing is denoted by 5.

The tick disk 4 exists in the exemplary embodiment shown from a textile fiber fabric 6, in which TextiI fiber fabric anchored hooks 7 and one for free side of the tick 7 executed cover disc 8, which preferably consists of a metal disc, the hooks 7 made of metallic material are shaped.

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Anchoring means are also in the textile fiber fabric 6 9 embedded, which extend into the actual drive pulley 1 and can be designed as desired can, in the illustrated embodiment Check marks are shown. Of course, anchoring means or anchoring means configured in the manner of a pine cone can also be used other anchoring means are provided.

Furthermore, the anchoring means can also be aligned obliquely to the surface of the hook disc. It should be expressly pointed out at this point that the representation in FIG. 2 is only for explanation serves the invention and the invention is in no way limited to the illustrated embodiment.

When the drive disk 1 is cast, the hook disk lies 4 as the bottom in the mold, so that now the plastic, preferably the polyurethane, the Drive pulley penetrates the textile fiber fabric, but towards the outside through the metallic cover plate is completed, whereby an intimate connection of the actual hook washer 4 with the Drive pulley 1 takes place.

Dia working disk 2 consists of a web of fabric 10, which consists of a velor fabric which is open towards the hook disc 4, i.e. is designed like an eyelet. Through one on this VelöUrgewebebahn 10 from the other Side applied finish 11, the velor fabric web is closed and can now on this velor fabric sheet, namely on the closed one Page, embedded in a phenolic resin layer, the abrasive material 12 are applied, the Application is preferably carried out electrostatically.

Through the interaction of the structure of the working disk

2 and the drive pulley 1 a tool is reached, that means high stability and long working hours has, with temperatures up to about 250 can be achieved with the new tool.

Claims (6)

·· ■ · 1 »at PATENTANWALT, · I", I '' '' POSTFACH s «9. D-4400 MÜNSTER 09/24/82 i-.ini im / - IJi f uAdotl1 1J» '"s>'« Am KANONENORABEN 11 · TELEPHONE (0i51) «911 DlPL-INQ. H.-g. HABKtL telex 89Ϊ397h, £ ed MY FILES: (please specify) H4 2/8 77 8 6 82 14 991.7 Fabritius, Hans Josef Fabritius, Hans J., Am Roggenkamp 57, 4400 Münster-Hi Ltrup "Schleifscheibe" Claims: 1. Serving as a grinding wheel working disc with a drive disc, wherein on the back of the working disc and the front of the drive disc interacting parts of an adhesive fastener and on the working side of the working disc fixed grinding bodies or work equipment are provided, characterized in that a) the hook disc (4) of the Velcro fastener in the The material of the drive pulley (1) is cast and made of a textile fiber fabric layer (6), in this held hook (7) and one the textile fiber fabric layer (6) outwardly covering cover layer (8), with additional anchoring hooks (9) from the hook disc (4) into the material of the drive disc (1) chen and b) the working disk (2) made of a TextilveLour C10), the one sealing on the working side is finished (at 11) and has a carrier layer on which, for example, elec the grinding bodies (12) are applied trostatically. 2. Device according to claim 1, characterized indicates that the drive pulley (1) made of poly urethane. 3. Apparatus according to claim 1 and 2, characterized in that the TextiIfaserschicht (6) of the hook disc (4) consists of a twill fabric. 4. Apparatus according to claim 1 to 3, characterized in that the chnet on the working disk (2) facing side of the tick disc (4) provided cover plate (8) is formed by a metal foil through which the hooks <7) of the hook washer (4) protrude. 5. Device resin layer by a pheno I according to at least claim 1, characterized ekennzei g seframe that the support layer of the work ^ disk is formed. 6. Device according to one or more of the preceding claims, characterized in that the hooks (7) of the hook washer (4) are formed from metal hooks. I ( ■ ·