RU169925U1 - REPLACEMENT MODULE FOR GRINDING DRUM - Google Patents

Abstract

The present solution relates to rotary grinding brushes used to grind substantially flat elements. The technical result of the utility model is the ability to change the removable brush module in the drum as it wears, the ease of manufacture of the removable module by pressing the bristles and sandpaper into a metal profile. The specified technical result is achieved due to the fact that a replaceable module for a grinding drum is declared, consisting of sandpaper and a set of bristles installed in a case made of metal bent profile, characterized in that the bristle fibers are inserted together with sandpaper and fixed inside the metal bent profile.

Description

The present solution relates to rotary grinding brushes used to grind substantially flat elements.

Today there are many grinding discs and drums (see, for example: http://flex-trim.com/), in which the same type of interchangeable elements are installed, containing sandpaper and a brush. The case (clip) can be made of a metal U-shaped profile, molded from plastic or epoxy resin, or made of a complex aluminum profile.

The difficulty of assembly is to simultaneously hold the elastic straw and a piece of sandpaper with glue inside a smooth groove up to the moment of pressing in, the straw strives to pop out, get tangled, move out. Devices for dispensing, packaging and holding straw simultaneously with sandpaper are quite complex.

A solution is known according to the patent US 5438728, which presents a round grinding drum with brushes without sandpaper, which are permanently installed in it - fixed with a furniture clip or bracket or fused. The disadvantage is that it is not possible to quickly replace worn brushes and the inability to use sandpaper.

A solution is known according to the patent DE 20312415 U1, where the drum has round grooves for replaceable modules. The modules consist of brushes with a rounded body, in which the brush fibers are installed, and sandpaper is not included in the replacement module, but is installed separately next to the brush body directly in the drum, so replacing worn modules in the drum is complicated by the need to install the brush and sandpaper at the same time. Another variant of this solution is distinguished by the use of a special clamp for connecting sandpaper with a finished brush to simplify drum assembly. There is no single housing for the plug-in module in this design.

The difference from the above solution is that the claimed utility model has an external body made of bent metal, inside of which both bristles and sandpaper are placed, which allows you to quickly change worn grinding modules in the drum. The closest analogue is the brush module (RU 2428300, published: 09/10/2011), which contains an elongated body with two opposite lateral edges and many bristles that protrude from the body. On each of the lateral edges there are grooves extending in its longitudinal direction with undercut for abrasive skins placed with their protrusion from the body in the same direction as the bristles. The abrasive sides of the skins are facing away from each other to ensure that their abrasive side faces the flat element regardless of the direction of rotation of the grinding brush. Brush modules are placed on the abrasive plate. Flat elements are placed on the conveyor, and grinding is carried out with a change in the direction of rotation of the grinding brush and the movement of the conveyor. As a result, the downtime of the grinding device is reduced by providing a quick transition in the grinding process to the use of another skin.

A feature of the prototype is a removable brush module made of plastic, characterized by installing two emery skins of different grain sizes in one case, while the bristles are fixed in bundles in the case between sandpaper. Sandpaper can be replaced, but after wear of the bristles this does not make sense.

The technical result of the utility model is the ability to change the removable brush module in the drum as it wears, the ease of manufacture of the removable module by pressing the bristles and sandpaper into a metal profile.

The specified technical result is achieved due to the fact that a replaceable module for a grinding drum is declared, consisting of sandpaper and a set of bristles installed in a case made of metal bent profile, characterized in that the bristle fibers are inserted together with sandpaper and fixed inside the metal bent profile.

The bristle fibers can be bent in half and fixed in the housing by wire.

The bristle fibers can be bent in half and fixed by wire in the inner metal profile, which, together with sandpaper, is pressed into the outer casing.

An element can be installed inside a metal bent profile, which is a case with holes in which tufts of bristles are installed, which, together with sandpaper, are pressed into the outer case.

Brief Description of the Drawings

In FIG. 1 shows a view of an inserted removable module inside a groove of a grinding drum.

In FIG. 2 shows an example of the design of the removable module, where the bristle fibers are bent in half and fixed in the housing by means of a wire together with sandpaper.

In FIG. Figure 3 shows an example of the design of the removable module, where the bristle fibers are bent in half and fixed by wire in the inner metal profile, which, together with sandpaper, is pressed into the outer casing.

In FIG. Figure 4 shows an example of the design of a removable module, where sandpaper and an element representing a case with holes in which tufts of bristles are installed are installed inside an external casing of a metal bent profile.

Utility Model Implementation

The utility model can be implemented in the form of a replaceable module for a grinding drum, consisting of sandpaper and a set of bristles installed in a case of a metal bent profile (see Fig. 1). The novelty is that the bristle fibers are inserted and fixed inside a metal bent profile.

Technically useful model can be implemented in various ways.

Alternatively, (see Fig. 2), the replaceable module for the grinding drum can be made up of sandpaper 1 and a set of bristles 2 pressed (installed) in the housing 3 from a metal bent profile, the brush fibers being bent in half and held in the housing by wire 4.

Alternatively, (see Fig. 3), the replacement module for the grinding drum can be made by analogy with the previous version, except that the bristle fibers 2 bent in half are fixed by means of wire 4 in the inner profile 5, which is already pressed together with sandpaper into the outer casing. Alternatively, (see Fig. 4), the replaceable module for the grinding drum can be made in such a way that an element can be installed inside the metal bent profile 3, which is a housing 6 with holes in which tufts of bristles 2 are installed.

The principle of operation of the removable module is as follows.

In the U-shaped bent profile (see Fig. 2) sandpaper 1 is installed with glue on the lower edge, and using aluminum wire 4, fiber blanks 2 made of straw (or plastic) are inserted inside the clip 3, after which the clip 3 is clamped laterally until a dense brush is formed and the profile becomes trapezoidal. Variations in the installation sequence are possible, you can first bend the straw with a wire, and then put sandpaper.

The brush fibers can be installed in the intermediate clip 5, which keeps the fibers from scattering during the assembly of the entire block (see Fig. 3).

Inside the metal bent profile 3, an element can be installed (see Fig. 4), which is a housing 6 with holes in which tufts of bristles 2 are installed.

Claims (2)

1. A replaceable module for a grinding drum, comprising a housing in which sandpaper and a set of bristles are installed, characterized in that the housing is made in the form of a metal bent profile, and sandpaper is installed with fixation together with a set of bristles inside the bent profile. 2. The module according to claim 1, characterized in that the bristles are installed inside a bent profile in a bent position in half with fixation by wire.

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