SU1630782A1 - Mandrel for winding filamentary material of pile for brush-making - Google Patents

Abstract

This invention relates to brush production. The purpose of the invention is to increase productivity. A mandrel for winding a pile-like filament material comprises a core mounted in the body, having a cross-shaped cross-section, removable elements for fastening the threads of the pile at the bend, mounted on opposite sides of the core, and blades for cutting the turns. The core has at least one intermediate support. Removable elements are made along the length of the individual sections, one ends of each of which are fixed on an intermediate support, and others on opposite ends of the body. Blades are mounted on opposite sides of the core between the removable elements. 3 il.

Description

This invention relates to brush production.

The purpose of the invention is to increase productivity.

FIG. 1 shows a mandrel placed in the chuck of the machine; in fig. 2 - core, longitudinal section; in fig. 3 - ready brush.

The mandrel for winding the pile-like material of the pile contains a core 2 mounted in the housing 1, having a cross-shaped cross-section, removable elements for fastening the tufts in the place of their bend, mounted on opposite sides of the core 2, and the blade 3 for cutting the turns.

The core 2 has at least one intermediate support 4. Removable elements are made in length from separate sections 5 and 6, one ends of each of which are fixed on intermediate support 4, and the other on opposite ends of housing 1. Case 1 is fixed in cartridge 7, for example 8. The blades -3 are mounted on the anti-shielding sides of the core 2 between the removable elements 5 and 6. The guide rollers 9 are placed on the support of the machine. A thread 10 is used to fasten the threads of the pile. For cutting metal yarn threads, Rena knives 11.

The body of the finished brush is made of two halves, fastened together by a threaded connection 12. An elastic ring 13 is placed between the brush body and the pile set. Threaded pile material is indicated by 14.

The device works as follows.

A chassis 1 with a core 2 and removable elements 5 and 6 is mounted into the lathe chuck 7. The end of the filament material (polymer abrasive thread, steel wire for brushes or other materials) is fixed on one of the removable elements. The thread-like material of the pile with the coils passes through the guide rollers 9. When the cartridge rotates

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filament material is wound onto removable elements 5, 6 and blade 3. After winding is completed, the pile filament material is fixed with a binding thread 10 on removable elements 5 and 6. The core with the filament material fixed on it is removed from the lathe and the turns are cut. If the filament material is a polymeric filament, then pressing it outwards causes the filaments to be cut from the inside with blades 3. If the filamentous material is metallic wire, the cutting is done with blades 3 and knives 11 when moving them to the center of the core. The filamentary material cut and fixed on the removable elements 5 and 6 forms two combs which are fixed in the brush body.

Claims (1)

The invention of the mandrel for winding threadlike material of the pile in the manufacture of brushes, containing a core mounted in the housing, having a cross-shaped cross-section in shape, removable elements for fastening the threads of the pile in the place of their bending, mounted on opposite sides of the core, and blades for cutting Q turns, characterized in that, in order to increase productivity, the core has at least one intermediate support, removable elements are made in length from separate sections, one ends of each of which are fixed on the 5 intermediate support, and others on opposite the ends of the case, while the blades are mounted on opposite sides of the core between the removable elements. 1 FIG. 2 FIG. 3