SU439272A1 - Method for making disc brushes - Google Patents

Description

one

This invention relates to methods for making wire brushes made of wire or filament of a polyamide class material, such as capron, used in industry for the mechanical cleaning of welding seams, descaling, polishing and a number of other similar operations.

Methods are known for making disc brushes by winding a yarn, forming bristles from it, and securing the bristles with glue in a holder.

A disadvantage of the known method of manufacturing disk brushes is low productivity.

In order to increase the productivity of the proposed method, the winding and shaping of the bristles are carried out simultaneously on a rotating disk, while the thread is laid on the disk tangentially its axis of rotation, and glue is applied to the thread simultaneously with their winding on the disk.

In the manufacturing process, two disc brushes are obtained at one time.

FIG. 1 shows a diagram of a device for winding a thread on a disk, side view; in fig. 2 - the same, front view.

The bristles of the brushes are obtained from filaments wound on a disk 1 having a groove along the outer edge and undercuts for placing the sleeves 2 and 3 forming the holder of the bristles. Insert the sleeves 2 and 3 into the hole in the disk 1, then put the disk on the mandrel 4, place it in the cartridge associated with the source of rotation, and then wind the threads or wires 5 on the rotating disk. The filaments or wires are wound from bobbins 6 rotated by the carrier 7. Simultaneously with the winding, the bristles are fed through the tubes 8 to the filaments in the area of the sleeves 2 and 3 with a thin layer of liquid glue.

The reels are installed with an offset from the center of the disk 1, the winding thread 5 at the same time lies on the disk along the chord, but since the disk rotates at a certain speed, the thread is superimposed over the disk at regular intervals, forming an oblate coil. After winding the required thickness of the brush, the rotation of the carrier and the disk and the supply of glue is stopped. Then, the formed threads on the disk are clamped with clips, followed by flaring of the sleeves 2 and 3. After that, the threads are cut along the periphery and get two disk brushes.

Subject invention

Claims (2)

1. A method of manufacturing disc brushes by winding a thread, forming bristles from it and securing the bristles with glue in a holder, characterized in that, in order to increase productivity, the thread is wound and the bristles are formed simultaneously on a rotating disk, while the thread is laid on a disk tangentially its axis of rotation. 2. A method according to claim 1, characterized in that the glue is applied to the threads simultaneously with their winding on the disk.