SU1416283A1 - Module device for feeding wire - Google Patents

Abstract

The invention relates to welding, in particular, to modular devices for feeding electrode wire over long distances for forced welding presses, and can be used in various engineering industries. The purpose of the invention is to simplify the design and expand the technological capabilities when working in forced welding modes with large-diameter electrode wire. The device contains a wire feeding unit 3 with an electric motor 6 and a planetary head 5 placed in the insulating housing 2. A cooled unit 4 is connected to the front of the electric motor 6, consisting of current and water supply, water and gas supply pipes connected by the front and rear flanges 7 and 8. An insulating flange 18 is attached to the rear of the electric motor 6 and is connected to the wire feed system of the weld hose. The outer surfaces of the flanges 7 and 8 and the insulating flange 18 are designed as guides on the insulating body 2. The body 2 consists of two parts with cutouts 21 provided for manipulating the head 5 that feeds the wire. A protective cover is installed above the cutouts 21 and movably on the insulating body 2. ka 22. 3 z.p. f-ly, 4 ill. se (L

Description

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The invention relates to a modular device for feeding wires, in particular electrode wires over long distances for forced welding conditions, embedded in a handle or detached in an intermediate module, which finds use in gas-shielded welding.

A modular device for supplying planetary wire with a built-in unit for feeding wire to a torch with a handle (auth. St. DPRB No. 24442, class B 23 K 9/12, 10.03.78) is known, the unit for feeding wire, including an electric motor and the planetary head, located in the current-carrying and gas-carrying pipe, designed in the form of a handle. The gas system and the current-carrying elements of the burner are made up of three parts connected by threaded joints, which are enclosed and placed in an insulated housing.

The drawbacks of this device are as follows: lack of cooling, as a result of which it is impossible to work in forced welding modes (over 400 A) and large electrode wire diameters, poor welding conditions due to splitting of gas to the gas and contact nozzles and complicated by several collapsible connections leading to unreliable supply of welding current and protective gas; non-technological layout, which is inconvenient for building a multi-module system due to the need to disassemble the individual elements of the working systems of the module during operation, accompanied by the twisting of the welded hose

The purpose of the invention is to create a modular wire feeder with a simplified, lightweight, technological and compact design that provides effective cooling and improved welding mode with good switching of the welded current, enhanced operational capabilities in forced welding modes of the electrode wire. diameters, and multi-modular combinations of supplying filaments for long distances are obtained without the need for disassembling and breaking the gas, water, current and feed wires. oku systems.

FIG. 1 shows a modular wire feeder; FIG. 2 is an axonometric image of the indivisible current-carrying cooled torch body of FIG. 1 in FIG. 3 - modular wire feeder, made in the form of an intermediate module in the open position with partial cuts; in fig. 4 is an axonometric image of the indivisible current-carrying cooled body of the module of FIG. 3

The modular wire feeder is made in the form of a welded torch 1 with an insulating body 2 externally designed in the form of a handle, in which the feed wire 3 and the cooled unit 4 are placed. The feed block 3 consists of a planetary feed wire 5 and an electric motor 6, to the front of which a current-carrying cooled unit 4 is attached. The latter is composed of a front flange 7, a rear flange 8, a current and a water supply pipe 9 with a threaded connection 10 for a water-cooled welded cable 11, a drainage system tube 12 and gas supply tube 13.

The front flange 7 is made in the form of a collector and has an opening on the inner side for movably connecting the guide bushing 14 for feeding the wire, and on its outer side there is a front current and water supply pipe 15, a front water outlet pipe 16 and gas supply pipe for wire 17, ending at the front end (Welding torch 1. The rear flange 8 is made in the form of a radiator, and the wire supply unit 3 is insulated to it. An insulating flange 18 is attached to the back of the motor 6 The systems for feeding the wire 19 of the welded hose 20. The insulating body 2 is made up of two parts with notches 21, which in the area of the planetary supply wire of the head 5 are closed by a sliding protective cover 22.

According to FIGS. 3 and 4, the modular wire feeder is made as an intermediate module and has the same components as when the burner is operated with a handle, with the difference that on the outside of the front flange 7

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fixedly insulated intermediate insulating flange 23 with an opening for a movable connection of the guide sleeve 14 for feeding the wire and intermediate threaded connection 24 for the second system for feeding the wire 25 of the intermediate welded hose 26; current and water bearing threaded connection 27 to the intermediate welding cable 28; a water outlet tip 29 and a gas feed tip 30.

In both embodiments of the mobile power supply unit for wire feeding, all the flanges of the current-carrying cooled unit 4 are designed as guides on the insulating body 2,

The action of the modular wire feeder, made in a torch with a handle, including individual operating systems, is as follows

Cold cooling water is fed through the threaded connection 10 through the current and water supply pipe 9 to the front flange 7. It cools the current-carrying cooled body 4 and partially spent (heated) water and passes through the end current and power supply pipe 15 to the end welding torch 1 cools and returns the end drainage pipe 16 to the weld hose 20. When cold cooling water flows through the cooled unit 4, the space bounded by the insulating body 2, the body 2 and the electric motor 6 also cools. The effect is complemented by the flow of protective gas through the gas supply pipe 13, through the front flange 7 and through the gas supply and supply wire 17 (Fig. 1 and 2).

A similar effect of the water and gas systems of the modular wire feeder, made in the form of an intermediate module, the only difference being that the cooling water and the shielding gas flow after the first flange 7, respectively, through the current and water carrier thread 27 and gas supply nozzle 30 to intermediate welded hose 26, and waste water is returned along end-to-end nozzle 29 (Figures 3 and -4).

Thus, the specified action of water and gas systems takes

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heat from the welding arc produced in the forced-mode welding of large-diameter electrode wire, which effectively cools the entire combination of modular devices, and the active lowering of the temperature at the end of the burner 1 makes spatter adhesion insignificant.

10 According to FIGS. 1 and 2, the welding current is supplied through the threaded joint 10 of the current and water supply system (pipe 9 to it and transmitted through the cooled unit 4 to the end of the welding torch 1

15 into the arc zone, and the welding wire is fed to the insulating flange 18, passes through the wire feeding unit 3, the guide bushing 14 for feeding the wire, movably mounted in the front flange 7, and through

the end of the welding torch 1 is fed to the arc zone.

According to FIG. 3 and 4, the welding current is supplied to the cooled unit 4 in an analogous manner, after which it is transmitted to the intermediate welding cable 28 through the current and water-containing threaded connection 27, and the welding wire after the guide

30, the sleeves 14 for feeding the wire movably installed in the intermediate insulating flange 23 are fed through an intermediate threaded connection. 24 to the second system for feeding 35 the wire 25 of the intermediate welded hose 26.

Conducting a new electrode wire or replacing it through a combination of more than one modular device is carried out seamlessly sequentially through the intermediate welded hoses 26 of all modular devices up to the burner 1, with the corresponding heads for feeding

The 45 wires 5 are opened for the necessary manipulations by pulling out the protective pins 22 without disturbing the integrity and density of the gas, water and current-carrying systems.

50 Sign of the invention according to the results of the examination carried out by the Office for the Invention of the People's Republic of Bulgaria.

Claims (4)

1. A modular wire feeder, in particular for feeding the electrode wire to large 51 distances for forced welding conditions, including a welding torch, a block for feeding wire with an electric motor and a planetary feed-head, placed in an insulating body, with the fact that it is supplied with a cooled unit, 9, a drainage pipe 12 and a gas supply pipe 13, interconnected by front 7 and rear 8 flanges, and fixed on the front of the engine 6, an additional insulating flange 18, mounted on the rear of the electric motor 6 and connected to the hearth system The wires 19 of the welded hose 20, the outer surfaces of the front 7, rear 8 and insulating 18 flanges are designed as guides on an insulating body 2 made of two interconnected parts with cutouts 21 provided for manipulating the head for wire 5, and above the notches 21 with the ability to move on the insulating body 2 installed protective krippka 22, which is equipped with a device. 77 3 2. The device according to claim 1, about t l and - I, with the fact that the front flange 7 is designed as a collector with a guide sleeve movably connected to it for supplying the wire 14, and the rear flange 8 - in the form of a radiator on which an insulated unit is installed for feeding the wire 3. 3. The device according to paragraphs. 1 and 2, about t - in that it is provided with an intermediate insulating flange 23 with connected to it with. the ability to be moved by the outlet nozzle for feeding the wire 14, the current-carrying and water-carrying threaded joint 27, the drainage 29 and the gas-feeding 30 by the tips of the intermediate welded hose 26, which are rigidly fixed on the outer side of the front flange 7. 4. Device on PP. 1 and 2, characterized in that on the outer side of the front flange 7, the end current-carrying and water-carrying 15 are rigidly fixed, the drainage pipe 16 and the gas supply and supply wire 17 of the pipe are connected to the front part welding torch 1, : f} uc .2 25 / J J4 2f 5 d 22 76 78 2ft 77 7 " 29 0 37 fS J // ff I ii rO 77 figs YU FIRL