JPS61178182A - Roll brush - Google Patents

Abstract

PURPOSE:To improve the function of a roll brush remarkably and remove mill scales from a steel plate effectively by forming a brush unit having a rod-shaped bundle of straight and very fine wires of high hardness. CONSTITUTION:A roll brush is formed in such a way that a plurality of disc retainers 4 having a rod-shaped brush unit 1 radially arranged around its circumference at equal intervals is provided in parallel with a certain space, and fixed to a driving shaft perpendicularly running through their driving shaft hole 6. With the rotation of the roll brush, the brush unit 1 is hammered to a grinding surface at a certain angle and an adhesive on the tip of the unit 1 is broken to pieces. Consequently, the tip of a wire as wrapped is exposed and one brush unit 1 works to scratch and machine the grinding surface effectively as a cutter having many sharpened fine cutters on the tip of one grip.

Description

[Detailed description of the invention] The present invention relates to an industrial roll brush.

Wire roll brushes, which are widely used for removing rust from steel plates, descaling, deburring castings or pressed products, cleaning flat plates, etc., are made by planting wires radially at a constant density at fixed locations on the rotating shaft. Alternatively, it is attached and the outer circumference is formed into a cylindrical shape, and when it is rotated and applied to the material to be polished, the rotational power is dispersed and propagated to the tip of each wire, and the tip of the contact wire becomes elastic. This is a blade that scratches the surface of the material being polished to perform polishing or grinding. In other words, roll brushes are characterized by the characteristics, hardness, and high tensile strength of the wire that makes up the plasticine.
It is an excellent type of tool that makes maximum use of its elasticity to resist bending, but the three characteristics of the wire that affect the function of the flange do not necessarily promote each other, and it is necessary to make full use of each characteristic. On the contrary, other properties may be impaired, and the effectiveness or economy of the flange as a whole may be significantly reduced. For example, if the hardness of the wire is increased to increase its machinability, the wire will become brittle and will not easily break, while if the cross-sectional area is made too small, the rigidity of the wire will be reduced and a large cutting force will not be available. Furthermore, if a thick wire is used to increase elasticity and rigidity, the surface will be roughened by striking, and the tip will become abraded and become spherical, which will slow down the cutting properties and reduce the flange effect, making it difficult to avoid conflicting relationships. Therefore, it is impossible to expect the effectiveness of roll brushing for heavy polishing work.
The current situation is that it is put into practical use to the extent that its essential weaknesses can be tolerated.

The present invention strengthens the essential weaknesses of the wire roll plunge described above and makes it possible to use ultra-fine wire with high hardness to increase the cutting effect (It).

(2) Since the flange effect is proportional to the amount of power acting on the tip of the wire, the mechanism is designed to be able to apply a large cutting force to the tip of the wire with a small cross section.

(3) Considering that wire breakage is caused by repeated bending exceeding the elastic limit and buckling, the bending phenomenon and buckling load are mechanically avoided.

This provides a roll brush that dramatically increases the flange effect and is fully applicable to heavy grinding operations such as descaling steel plates. One embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram of a brush unit that is a constituent material of the flange, instead of a single wire. Fig. 2 is an explanatory diagram of a retaining plate (plush element) equipped with a brush unit, and (1) in the figure shows a large number of thin straight wires arranged in parallel to each other, all or part of which are arranged in parallel. is formed into a rod shape of a certain shape using a bonding agent, and one or several of them are bound or joined together, and a mounting bracket (3) or an additional part (3) is attached to the holding disc. This is a brush unit that is integrated into a single unit.

(2) is a cable tie. (4) is a brush unit holding plate, in which a hole (6) passing through the drive shaft is drilled in the center of a circular steel plate, and a constant number of brush unit mounting holes (6) are spaced at regular intervals from the center. 5) is attached. (5) When mounted on the Buranoshunin If holding plate, there is enough room for the brush unit to swing back and forth in the circumferential direction of the holding plate and to slide slightly up and down in the radial direction. 1 and 1' in FIG. 2 illustrate the swing range of the brush unit.

FIG. 3 and FIG. 4 are cutaway front and side views, including a partial cross section, illustrating the structure of a roll brush in which a plurality of plunge elements pass through a drive shaft. (Plunge units are attached to retaining plates that are in contact with each other at regular intervals by spacers (8) and fixed collars (9), and are installed in parallel at right angles so that they are arranged alternately in terms of space, Further, the plunge element is fixed to the fixed collar (9) by a constant fixed rod αQ passing through the roll vertically, and the fixed collar (9) is fixed to the drive shaft by a key 0υ.Brush units are arranged in parallel on the thus assembled roll surface. In the space parallel to the drive shaft created between the rows, a cushioning material α2 spanning the entire length of the roll is fixed to a holding plate so that it can move at the same distance from the center of the shaft and slightly back and forth in the circumferential direction. I'm there.

A series of plunge elements, spacers, and fixing collars fitted to the drive shaft are clamped and fixed by two opposing flanges <13 from both end surfaces thereof to form one roll flange.

When the brush unit is assembled into the flange roll tiit configured as described above and rotated to come into contact with the surface to be polished, the brush unit is struck against the surface to be polished at a certain angle, and the bonding agent at the tip of the brush unit is crushed. The tip of the wrapped wire was exposed, and one brush unit was
To effectively grind a surface to be polished using a knife equipped with a number of sharp blades at the tip of a book handle (shank). At this time, since the length Δ of the wire exposed at the tip of the unit is extremely short, the rigidity of the wire is utilized to the maximum extent, and the cutting power is transmitted without bending or buckling the wire. Also, since the brush unit slides on the surface to be polished with an inclination made by being pressed against the cushioning material behind by the cutting reaction force, the contact plane of the roll due to the bending of each wire as in a general roll brush. No special configuration is required, and the wire breakage, which was the biggest drawback, can now be avoided.

In this case, the cutting reaction force exerted on each brush unit is propagated under pressure to the cushioning member in contact with the back of the brush unit, but the force applied to the cushioning material is multiplied by multiples through the plunge unit behind the stationery. Due to the two-point support of
It maintains balance by competing with the upright force. The cushioning material has elasticity and serves as a two-point support beam that receives a concentrated load at the center, and its shape gives an appropriate inclination to the brush unit due to its bending or deformation. The area and elasticity are determined depending on various factors such as the cutting force and the inclination angle of the brush unit.

As mentioned above, the roll plunge according to the present invention mechanically makes it possible to use ultra-fine wire with high hardness as a brush unit, dramatically increasing the function of the roll brush and improving the mechanical removal of steel plate scale, etc. When applied to heavy grinding work, it not only achieved the effect of splitting the bill, but also promoted economic efficiency by avoiding wire breakage, which was the fate of conventional roll blades, so we will utilize this in the appropriate place. This can make a great contribution to industry.

In addition, a brush unit that uses an abrasive-filled nylon filament instead of a wire and a bonding agent with suitable properties has shown an excellent polishing effect that was previously undiscovered for flat surface polishing, and has been shown to be useful as an abrasive material. The remarkable expansion of the applications of grained nylon filaments has contributed greatly to the abrasive industry.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the brush unit. FIG. 2 is an explanatory diagram of the plush element. In the diagram

Claims (3)

[Claims] (1) A large number of straight thin wires or synthetic resin filaments containing abrasive grains are made to have the same length, aligned in parallel, and all or part of the bundle is made of synthetic resin or a bonding agent. A plurality of brush units are joined together to form a rod shape, and a plurality of brush units are formed into a rod shape by binding or joining one or more brush units, and the plurality of brush units are attached radially and at equal intervals to the periphery of a circular holding plate. A roll brush characterized in that these are fixedly molded in parallel and orthogonal relation at regular intervals to a drive shaft passing through the center of a holding plate. (2) When the brush units of the roll brush are attached to the holding plate, each brush unit swings or slides back and forth in the circumferential direction and up and down in the radial direction around the connection point with the holding plate. The roll brush according to claim (1), characterized in that it is equipped to obtain a brush. (3) An elastic shock absorbing member having a rectangular cross section is provided in each gap, passing through the gap between two adjacent brush units of the roll brush equipped with the swingable brush unit, along the entire length of the roll; parallel to the drive shaft center line,
A roll brush according to claims (1) and (2), characterized in that the brushes are integrally molded and attached so as to be able to swing slightly in the radial direction at equal distances from the center line.