Cable reel system for arc welding

Abstract

A system is disclosed for an arc welding cable reel that can guide all essential lines, such as a power line, a control line, and a gas conduit, into the reel and feed them into the cable without the need for two slip rings. The present invention comprises: an electrode cable connected to a welding holder, the electrode cable having a power line that generates an arc between an electrode and a base material at its end, a control line that transmits an electrical signal for welding control, and a gas conduit that transports an inert gas, the electrode cable being covered; a ground cable drawn from a welding machine body and connected to the base material; a winding drum for winding the electrode cable; and rotating plates provided on both sides of the winding drum to prevent the electrode cable from coming off. The present invention provides an arc welding cable reel system comprising: a central axis that penetrates the center of the rotating plate in conjunction with the rotating plate; wherein the control line and the gas conduit are drawn from the welding machine body and fed into the electrode cable through the central axis of each of the rotating plates on both sides, and the power line is composed of a primary power line drawn from the welding machine body and connected to an external terminal formed on the outer side of the rotating plate, and a secondary power line having one end connected to an internal terminal formed on the inner side of the rotating plate and fed into the electrode cable and extending to the welding holder.

Description

Technology Field

[0001] The present invention relates to a cable reel system, and more specifically, to a cable reel system for arc welding. Background Technology

[0002] Arc welding is a welding method that generates an arc between electrodes through electrical discharge and joins the weld area by melting it with arc heat of approximately 6,000°C. Although it can usually be performed in the atmosphere, in the case of metals with high melting points or active metals, they react with the atmosphere and become contaminated; therefore, the process is performed in a chamber filled with inert gas, or a method is used in which an inert gas such as argon is continuously blown out using a welding electrode or torch equipped with an insoluble gas nozzle until the welded area is sufficiently cooled.

[0003] Electrodes are classified into consumable and non-consumable types; consumable types join by melting the electrode itself or the welding rod (Metal Inert Gas (MIG) method), while non-consumable types join by melting the material without the electrode melting during welding, and tungsten is commonly used for non-consumable electrodes (Tungsten Inert Gas (TIG) method).

[0004] Meanwhile, arc welding is performed by connecting a cable covered with a power line that generates an arc between the electrode and the base material at the end, a control line that transmits electrical signals for welding control, and a gas conduit that transports inert gas to a welding holder, and the power line, control line, and gas conduit are drawn from the main body of the welding machine. At this time, due to the nature where movement of the cable is unavoidable depending on the working environment, there is a need to develop an arc welding cable reel so that the cable can be wound and used. Typically, the line fed into the cable in the cable reel is guided into the interior of the winding drum through a central axis coupled to a rotating plate provided on both sides of the winding drum so that it is fed into the cable.

[0005] Here, in the case of a cable reel for arc welding, it is difficult to guide all three essential lines drawn from the welding machine body through the central axis. That is, due to the characteristics of the electrical wires, the power line and control line must be guided into the winding drum by attaching a slip ring to the central axis. However, a gas conduit must be connected to the central axis of one of the two rotating plates, and therefore, in order to guide both the power line and control line to the central axis of the other side, two slip rings must be independently provided on one side. However, in reality, it is very difficult to structure this, and even if structured, there is a problem of increasing the volume and weight of the reel. The problem to be solved

[0006] The present invention aims to provide a system for an arc welding cable reel that can guide all essential lines, such as power lines, control lines, and gas conduits, into the reel and feed them into the cable without a slip ring for power lines, whereas generally, two slip rings are required during manufacturing, one for power lines and one for control lines. means of solving the problem

[0007] To solve the above problem, the present invention provides an arc welding cable reel system comprising: an electrode cable connected to a welding holder, the electrode cable being covered with a power line that generates an arc between an electrode and a base material at an end, a control line that transmits an electrical signal for welding control, and a gas conduit that transports an inert gas; a ground cable that is drawn from a welding machine body and connected to the base material; a winding drum that winds the electrode cable; a rotating plate provided on both sides of the winding drum to prevent the electrode cable from coming off; and a central axis coupled with the rotating plate and penetrating the center of the rotating plate; wherein the control line and the gas conduit are drawn from the welding machine body and fed into the electrode cable through the central axis of each of the rotating plates on both sides, and the power line is composed of a primary power line drawn from the welding machine body and connected to an external terminal formed on the outer side of the rotating plate, and a secondary power line having one end connected to an internal terminal formed on the inner side of the rotating plate and fed into the electrode cable and extending to the welding holder.

[0008] In addition, the above power line provides an arc welding cable reel system characterized by having a tungsten electrode at one end.

[0009] In addition, the present invention provides a cable reel system for arc welding characterized in that the inert gas is argon. Effects of the invention

[0010] According to the present invention, in an arc welding cable reel, a control line and a gas conduit are drawn from the main body of the welder and fed into the electrode cable through the central axis of each of the rotating plates on both sides, and the power line is formed into a primary power line drawn from the main body of the welder and connected to an external terminal formed on the outer side of the rotating plate, and a secondary power line having one end connected to an internal terminal formed on the inner side of the rotating plate and fed into the electrode cable and extended to a welding holder, thereby providing an arc welding cable reel system that does not require the installation of a slip ring to guide the power line into the reel. Brief explanation of the drawing

[0011] FIG. 1 is a schematic diagram showing a cable reel system for arc welding according to one embodiment of the present invention. FIG. 2 is a front view showing a cable reel for arc welding in one embodiment of the present invention. FIG. 3 is a cross-sectional view showing an electrode cable in one embodiment of the present invention. Specific details for implementing the invention

[0012] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In describing the present invention, detailed descriptions of related prior art are omitted if it is determined that such detailed descriptions may obscure the essence of the present invention. In order to clearly explain the present invention in the drawings, parts unrelated to the explanation have been omitted, and similar parts throughout the specification have been assigned similar reference numerals, and the detailed configuration of the present invention is described based on the drawings. Furthermore, throughout the specification, when a part is described as "including" a certain component, this means that, unless specifically stated otherwise, it does not exclude other components but may include additional components.

[0014] FIG. 1 is a schematic diagram showing a cable reel system for arc welding according to one embodiment of the present invention, FIG. 2 is a front view showing a cable reel for arc welding in one embodiment of the present invention, and FIG. 3 is a cross-sectional view showing an electrode cable in one embodiment of the present invention.

[0015] Referring to FIGS. 1 to 3, the arc welding cable reel system (100) according to the present invention includes an electrode cable (110) covered with a power line (111), a control line (112), and a gas conduit (113), a ground cable (120), a winding drum (130), a rotating plate (140), and a central axis (150).

[0016] The above electrode cable (110) has a power line (111), a control line (112), and a gas conduit (113) inserted and covered, and is wound on the above winding drum (130), so that the electrode cable (110) is pulled out during operation and wound up when the operation is finished.

[0017] The above control line (112) serves to transmit electrical signals for welding control, allowing the operator to control the overall operation of the welding machine body (160) from the welding holder (170). This control line (112) is drawn from the welding machine body (160) and guided into the inside of the reel (200), that is, the inside of the winding drum (130), through a conventional slip ring (180) provided on the central axis (150) of one of the rotating plates (140), and is fed into the electrode cable (110). For example, a primary control line (1121) drawn from the welding machine body (160) can be connected to the input power of the slip ring (180), and a secondary control line (1122) connected to the output power of the slip ring (180) and extending to the welding holder (170) can be fed into the electrode cable (110).

[0018] The above gas conduit (113) serves to transport inert gas, and such gas conduit (113) can be configured such that, for example, a primary gas conduit (1131) is drawn from the welding machine body (160) and connected to the central axis (150) of the opposite rotating plate (140) where the control line (112) is guided, and after the inert gas is moved through a flow path formed in the shape of a double pipe on the outer edge of the central axis (150), a secondary gas conduit (1132) is located inside the winding drum (130), connected to an outlet formed at the end of the central axis (150), and extends to the welding holder (170), and is introduced into the electrode cable (110).

[0019] In the present invention, the inert gas conveyed through the gas conduit (113) is not particularly limited, but preferably may be argon.

[0020] Meanwhile, although the above gas conduit (113) is described as being drawn from the welding machine body (160), the gas typically used is supplied from a separately provided gas storage container. It is obvious that the gas may pass through the gas conduit (113) via the welding machine body (160) from the gas storage container (190), or it may pass directly through the gas conduit (113) from the gas storage container (190).

[0021] The above power line (111) is equipped with an electrode (1113) at its end so that when current is applied, an arc is created between the electrode (1113) and the base material, and the arc heat generated melts the fusion part to join them. At this time, a high-frequency device is provided inside the welding machine body (160) to assist in the initial welding. In addition, the electrode (1113) provided at the end is not particularly limited, but it is preferable to use a tungsten electrode as a non-consumable electrode.

[0022] In the present invention, the induction of the power line (111) into the reel (200) is adopted in a manner in which it is induced without passing through the central axis (150) because the aforementioned control line (112) and gas conduit (113) are induced through the central axis (150) of the two rotating plates (140).

[0023] That is, the power line (111) is formed by a primary power line (1111) that is drawn from the welding machine body (160) and connected to an external terminal (141) formed on the outer side of the rotating plate (140), and a secondary power line (1112) that is connected at one end to an internal terminal (142) formed on the inner side of the rotating plate (140), is fed into the electrode cable (110), and extends to the welding holder (170), thereby providing an arc welding cable reel system (100) that is implemented without the need to install a slip ring to guide the power line (111) into the reel (200).

[0024] Here, the external terminal (141) and the internal terminal (142) are not specifically limited as long as they are means capable of connecting the power line (111). For example, if the end of the primary power line (1111) is provided in the form of a clamp, one of the bolts on the outer side of the rotating plate (140) can serve as the external terminal (141), and if the end of the secondary power line (1112) is connected to one of the bolts on the inner side of the rotating plate (140), the bolt can serve as the internal terminal (142).

[0025] The above grounding cable (120) is intended to protect the safety of the worker from leakage current when the coil or welding line inside the welding machine comes into contact with an external object, and is drawn from the welding machine body (160) and connected (grounded) to the base material (work to be welded).

[0026] The above winding drum (130) is a body that winds the electrode cable (110) and is mainly cylindrical, and the rotating plate (140) is coupled to both sides of the winding drum (130) to prevent the electrode cable (110) from coming off, and the central axis (150) is coupled to the rotating plate (140) and passes through the center of the rotating plate (140) to serve as an axis that transmits the rotational power of the cable reel (200), and the winding drum (130), the rotating plate (140), and the central axis (150) are basic elements that constitute a conventional cable reel (200).

[0027] Meanwhile, as shown in the drawing, the leading end of the electrode cable (110) may be provided with a stopper (210) and a pull-out guide (220) to prevent winding of the leading end. The pull-out guide (220) is a member that assists in the smooth pulling and winding of the electrode cable (110), and is connected vertically to brackets (230) provided on both sides of the reel (200), and the stopper (210) is provided at a predetermined position on the leading end of the electrode cable (110) to prevent the leading end of the electrode cable (110) from being wound.

[0029] The preferred embodiments of the present invention described above are disclosed to solve technical problems, and those skilled in the art to which the present invention belongs may make various modifications, changes, and additions within the spirit and scope of the present invention, and such modifications and changes should be considered to fall within the scope of the following claims. Explanation of the symbols

[0030] 100 : Cable reel system for arc welding 110 : Electrode cable 111 : Power line 1111 : Primary power line 1112 : Secondary power line 1113 : Electrode 112 : Control line 1121 : Primary control line 1122 : Secondary control line 113: Gas conduit 1131: Primary gas conduit 1132: Secondary gas conduit 120: Grounding cable 130: Winding drum 140: Turntable 141 : External terminal 142 : Internal terminal 150 : Central axis 160 : Welder body 170 : Welding holder 180 : Slip ring 190: Gas storage container 200: Reel 210: Stopper 220: Withdrawal guide section 230 : Bracket

Claims

Claim 1 An electrode cable connected to a welding holder, which is covered with a power line that generates an arc between the electrode and the base material at the end, a control line that transmits an electrical signal for welding control, and a gas conduit that transports an inert gas; a grounding cable that is drawn from the main body of the welding machine and connected to the base material; a winding drum that winds the electrode cable; and rotating plates provided on both sides of the winding drum to prevent the electrode cable from coming off. A cable reel system for arc welding comprising: a central axis coupled to the rotating plate and penetrating the center of the rotating plate; wherein the control line is drawn from the welding machine body and fed into the electrode cable through the central axis on one side of the rotating plate, the gas conduit is drawn from the welding machine body or a gas storage container and fed into the electrode cable through the central axis on the other side of the rotating plate, and the power line is composed of a primary power line drawn from the welding machine body and connected to an external terminal formed on the outer side of the rotating plate, and a secondary power line having one end connected to an internal terminal formed on the inner side of the rotating plate and fed into the electrode cable and extending to the welding holder. Claim 2 An arc welding cable reel system according to claim 1, characterized in that the power line is equipped with a tungsten electrode at one end. Claim 3 A cable reel system for arc welding according to claim 1, characterized in that the inert gas is argon.

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