RU2337598C2 - Brush - Google Patents

Abstract

FIELD: items of personal and house use.

SUBSTANCE: brush is executed in the form of layer-by-layer gathered and pressure-tested ring; each layer of the ring consists of the screw spring located in the ring on a spiral, radially located screw springs and needles placed radially. The ring is pressure-tested with density of 2,25÷2,5 g/cm², and the screw springs have lead equal to diameter of the springs.

EFFECT: qualitative and high-efficiency treatment of surfaces.

2 cl, 5 dwg

Description

The invention relates to the field of cleaning surfaces from old paint, rust, oxidized places after welding, welds.

Known sources:

- but. St. 1273048 - a cylindrical brush having a pile, located radially in the form of springs, sealed with the lower end in the base of the brush / clip /;

- Prospect VNII "ORGSTANKINPROM" - a brush having a pile in the form of corrugated wires, sealed with a lower end in a clip;

- company prospectuses: ATLAS SORSO, p. 47, OSBORN, p. 2-12 - radial and cup brushes with pile in the form of corrugated wires, sealed with a lower end in a clip;

- catalog "Hand and portable machines for shipbuilding", TsNIITS, 1985, pages 24 and 25 - pneumatic cleaning machines "Volna" and "Ruff" are given, which use cup brushes from corrugated wires.

The disadvantages of these brushes are that they clean the surface only from loose rust, weak paint, dirt, but they are not able to clean durable paints, especially on an epoxy basis, rust and discoloration after heat cutting and welding.

Brush designs / acupuncture / a are also known. St. 1621856, a. St. 486521 and a. St. 1158159. The disadvantages of these brushes is that they are designed to work on machines, since they require a lot of effort for their work due to the high density of the pile. Therefore, they cannot be used on hand grinders and drills, during which the operator is physically unable to create the necessary effort for the optimal operation of the brushes / needle cutter /.

The closest analogue of the claimed invention is a brush described in US patent 2634167, 04/07/1953 and made in the form of a layer-by-layer typed and pressed ring of pile. This brush cannot be used in power operation modes, since under the action of a force the bristles of the brush bend and iron the surface, and when pressed harder, its ends can be bent. From this processing method, productivity decreases and a more intense hair loss occurs. Therefore, such a brush can be used on light stripping operations and is not able to clean durable paints, rust, oxidized places after welding and heat cutting.

The objective of the invention is to create a lightweight high-performance cleaning tool for use on manual mechanical machines with electric, pneumatic, hydraulic and other drives and even on machines that would ensure uniform distribution of the ends of the cutting elements on the working surface of the wheel / brush /, able to remove durable old paints, rust, oxidized places after welding and heat cutting from the surface of products.

The problem is solved due to the fact that the brush is made in the form of a layer-by-layer typed and pressed ring, each layer of which consists of a helical spring located in a spiral ring, radially arranged helical springs and radially placed needles, while the ring is pressed with a density of 2 25 ÷ 2,5 g / cm ^3, coil spring have a pitch equal to the diameter of the springs and needles made of wire diameter 0.4 ÷ 0.5 mm.

With this ratio, a strong elastic element is obtained - a brush in the form of a ring, suitable for use on manual machines and capable of working with the end and edge edges of springs and needles in the needle-cutting mode. The invention is illustrated by drawings, where

Figure 1 shows a radial brush, General view;

Figure 2 shows a brush, side view;

Figure 3 shows a coil spring, helically laid in the mold 5;

Figure 4 shows the coil springs 2 and 3 located radially in the mold 5;

Figure 5 shows a side view of the mold 5, in which place the first layer, consisting of coil springs 1, 2, 3 and needles 4.

The brush contains a helical spring 1, placed in a spiral, radially springs 2 and 3 and radially spaced needles 4. All parts are made of spring wire.

The brush is stacked layer by layer in the mold 5. After the first layer of springs and needles 1, 2, 3, 4 are set in the mold on the support plate 6, the set of springs and needles is slightly crimped. Then the rods 7 layer together with the support plate 6 is lowered to level two. At this level, a second layer of springs and needles is accumulated similarly to the process of the first layer, which after completing this operation again drops to the next level, the third and so on. The process is repeated until a packet of the required height is reached.

After a set of the calculated height is obtained in the mold, the packet is crimped on the press depending on the size of the brushes and the material of the coil springs, then it is removed from the mold and a brush is obtained in the form of a ring of the planned height, while the ring is pressed with a density of 2.25 ÷ 2.5 g cm ³ . After cutting the periphery of the ring with a grinding wheel, the number of cutting elements on the working surface of the brushes increases by 0.5–1.0 mm.

Claims (2)

1. A brush made in the form of a layer-by-layer typed and pressed ring, each layer of which consists of a helical spring located in a ring in a spiral, radially arranged helical springs and of needles placed radially, while the ring is pressed with a density of 2.25 ÷ 2, 5 g / cm ³ , and coil springs have a step equal to the diameter of the springs. 2. The brush according to claim 1, in which the needles are made of wire with a diameter of 0.4 ÷ 0.5 mm

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