RU2235814C2 - Sheathing machine - Google Patents

Abstract

FIELD: production of sheathed articles, in particular, equipment for sheathing of elongated articles with yarn or metal wire.

SUBSTANCE: machine has cooperating sheathing and pulling machines, disk for spreading of sheathing before sheathing process, dc engines with thyristor regulators, plate, wing gear system mounted on plate, holders and guiding path for holders. Machine may be used for sheathing of polyethylene pipes having diameter of up to 150 mm.

EFFECT: simplified construction and improved quality of sheathing.

2 dwg

Description

The invention relates to techniques for the production of braided products. The machine is designed to braid extended products with yarn or metal wire.

Known braiding machine containing a group of bobbins mounted on a central tube for guiding the braided product a table with guide grooves in which the crawlers and the drive of the cushions are installed, to increase productivity and radial dimensions, it is equipped with a carousel installed under the table kinematically connected with the drive of the cushions. [1]

The closest in technical essence (prototype) is a braiding machine. [2] A braiding machine is proposed, the bobbins of which are driven by impellers located between the lower plate and the working plate, and supported by guides at the intersection points.

The disadvantages include the presence of two guide elements on the inside in the form of two guide copy parts with sharp ends, while the guide copy parts pass only along part of the guide lengths.

The objective of the invention is to increase the possibility of braiding polyethylene pipes with an outer diameter from the minimum produced to 150 mm, improving the quality of the braid.

Figure 1 - shows a schematic diagram of a braiding machine;

figure 2 is a section aa in figure 1.

Braid machine (figure 1) consists of interconnected braid (3) and pulling (1) machines. A plate (4) is mounted on the braiding machine, on which lionfish (2) are fixed in the bearing assemblies, into the slots of which holders (5) with crackers (11) and coils (6) with wire or yarn and a roller system (7) are inserted. The machine also contains a disk (8) for laying out the braid before weaving the product (9) and DC motors with thyristor regulators. The plate (4) has two sinusoidal closed grooves (10) along which the flat guides of the crackers (11) and two loading grooves (12) slide (Fig. 2)

The machine consists of two interconnected braiding and pulling machines and is designed for weaving products of any density, up to tight weaving of long products, mainly polyethylene pipes from a minimum pipe diameter of up to 150 mm inclusive and a pipe length of up to 100 m (for pipes with a diameter of 150 mm) and more for pipes of a smaller diameter, wire or yarn from one threading of the coils in the “two through two” system with horizontal movement of the braided product.

A disk (8) is provided on which a wire or yarn is laid out before being wound onto a braided product (9). To obtain a plexus on a pipe with the required winding angle (which allows you to work with pipes of various diameters from minimum to 150 mm).

Braiding machines (3) and pulling (1) are equipped with DC motors with thyristor regulators.

On the machine, the braid plate (4), on which the lionfish (2) are assembled in the bearing units, stands vertically, and the axis of the bearing units for lionfish (2) and the holders (5) mounted on them with coils (6) and crackers (11) are located horizontally.

Braiding around the product is carried out by moving the lionfish (2) of the holders (5) with coils (6) and crackers (11) along sinusoidally closed grooves (10).

In case of wear of the flat guide crackers (11), they are replaced by removing the holder (5) with worn crackers (11) through the loading grooves (12) in the plate without disassembling other elements of the machine. The coil holders have two cheeks (13, 14) with which they hold onto the lionfish (2), ensuring their stable position during operation, and relieve the load on sinusoidal grooves (10) and flat guides of crackers (11), and lionfish (2) holders are pushed by holders (5) with coils (6), transferring them from one to another.

In the lower cheek (13) of each holder there are two holes for the cylindrical part of the crackers, and the flat guides of the same crackers are inserted into the sinusoidal grooves (10). As a result, the holders (5) with coils (6) during their movement repeat the trajectories of sinusoidal closed curves, and the heat-treated and high-quality plate with sinusoidal grooves (10) and crackers (11) and grease of the friction points guarantee smooth sliding of the flat guide crackers ( 11) in sinusoidal grooves (10), at the places of transition of the holders (5) with coils (6) from one lionfish to another, as well as long-term and reliable operation of the machine and obtaining high-quality braiding of products (9).

The braiding machine (3) has 64 coils, with 32 coils moving clockwise and 32 coils moving counterclockwise. Depending on the diameter of the pipe and the required plexus density, the required number of threads on the spool is selected.

The presence of the same system of rollers (7) on each holder of the coil (5) creates the same tension of wire or yarn at the output of each coil, which is very important for obtaining a high-quality braid on the product.

Sources of information

1. Auth. certificate No. 588069, MKI D 04 C 3/12.

2. Patent DE No. 2129857, MKI D 04 C 3/06.

Claims (1)

Braiding machine, consisting of interconnected braiding and pulling machines, a disk for braiding before braiding the product, DC motors with thyristor regulators, while a plate is mounted on the braiding machine, on which lanterns are mounted in the bearing assemblies, in the grooves of which are mounted coil holders with crackers moreover, on the plate there are two sinusoidal closed grooves and two loading grooves for moving the flat guide crackers, and holes are made in the lower cheek of each holder for the cylindrical part of crackers.

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