Press Board of Pail-Pack for Welding Wire and Manufacturing Method thereof

Abstract

The present invention provides a welding wire winding failpack pressing plate that enables bidirectional movement of the wire by means of a contact hemispherical body formed to protrude downward in a hemispherical shape and in direct contact with the wire winding roll of the failpack, thereby allowing the internal wire to move rapidly toward the inner wall surface of the failpack as much as the wire is fed externally, and induces increased feeding performance by allowing the wire to be fed while making point contact at each contact hemispherical body placement position. Furthermore, the present invention provides a method for manufacturing a welding wire winding failpack pressing plate in which the entire failpack pressing plate including the above-mentioned contact hemispherical body is integrally molded by injection molding, thereby simplifying the manufacturing process, reducing manufacturing costs, and increasing durability.

Description

Technology Field

[0001] The present invention relates to a welding wire winding failpack press plate and a method for manufacturing the same. More specifically, the invention relates to a welding wire winding failpack press plate and a method for manufacturing the same, wherein the wire feeding capability can be maximized by allowing the wire to move while making point contact with a contact hemisphere that is in direct contact with the wire winding roll of the failpack, while the entire failpack press plate including the contact hemisphere is integrally molded by injection molding, thereby simplifying the manufacturing process, reducing manufacturing costs, and increasing durability. Background Technology

[0003] Generally, welding wires used in automatic and semi-automatic welding devices can be broadly classified into spool winding and failpack winding methods depending on how the wire is wound.

[0004] In the case of the failpack winding method for supplying large-capacity wire, the welding wire is wound inside a failpack container. The structure of the failpack container is broadly classified into a single-tube structure consisting only of an outer tube, and a double-tube structure consisting of an outer tube and an inner tube. Since the welding wire is stored in a state where it is wound in large quantities in failpack winding, it must be ensured that the welding wire is smoothly fed during operation. Furthermore, because the welding wire is wound in large quantities, it is mainly used for long-duration welding work. Therefore, the use of the failpack for welding wire is increasing as it enables the improvement of welding work efficiency even in environments such as long-duration welding work or continuous welding work.

[0005] Meanwhile, a failpack press plate is used to ensure that the wires wound and stacked inside the failpack container are supplied externally without unraveling all at once. The failpack press plate is placed on the upper surface of the wire winding roll to press the wires, thereby preventing the wires from unraveling all at once or the externally supplied wires from becoming tangled. As the volume of the wire winding roll is reduced by the externally supplied wires, the failpack press plate inside the failpack container descends accordingly, continuously pressing the wires. The failpack press plate also performs the function of preventing the wires from becoming tangled when assembled together with the failpack containing the wire winding rolls during packaging, storage, or transportation.

[0006] Technologies related to failpack pressing plates include Korean registered patent publication No. 10-1275113 "Wiring wire entanglement prevention device" and No. 10-0443728 "Pressing plate installed in welding wire failpack."

[0007] In the case of a conventional failpack pressing plate such as the "welding wire entanglement prevention device" mentioned above, as shown in FIG. 8, 1) the wire moves only in the central direction due to the locking projection (310) formed at the end of the leg portion (330), making it difficult for the remaining wire to move to the inner wall surface of the storage container in accordance with the external feeding of the wire, and 2) the feeding performance is reduced due to friction as the wire comes into surface contact with the entire locking portion (300), including the locking projection (310), and the wire pressing portion (200). In addition, the conventional failpack pressing plate has a significant disadvantage in that it is cumbersome in the manufacturing process to assemble the separately manufactured locking portion (300) to the wire pressing portion (200). Prior art literature

[0009] Korean Registered Patent Publication No. 10-1275113 "Welding wire entanglement prevention device" Korean Registered Patent Publication No. 10-0443728 "Pressing plate installed in welding wire failpack" The problem to be solved

[0010] Accordingly, the present invention aims to provide a new type of welding wire winding failpack pressing plate and a method for manufacturing the same, which improves upon the problems of such conventional technology by 1) enabling bidirectional movement of the wire through a contact hemispherical body formed to protrude downward in a hemispherical shape and in direct contact with the wire winding roll of the failpack, thereby allowing the internal wire to move quickly to the inner wall surface of the failpack as much as the wire is fed externally, and 2) inducing increased feeding performance by allowing the wire to be fed while making point contact at each contact hemispherical body placement position through the contact hemispherical body.

[0012] In addition, the present invention aims to provide a new type of welding wire winding failpack press plate and a method for manufacturing the same, in which the entire failpack press plate including the above-mentioned contact hemisphere is integrally molded by injection molding, thereby simplifying the manufacturing process, reducing manufacturing costs, and increasing durability. means of solving the problem

[0014] According to the features of the present invention for achieving the above-described purpose, the present invention comprises a pressing plate (100) placed on the upper surface of a wire winding roll (10) which is arranged in the internal space (21) of a fail pack (20) at a set height (H) and width (W), wherein the pressing plate (100) is formed in the shape of a hollow disc with a set width (w) having an outer diameter (R') and an inner diameter (r') corresponding to the outer diameter (R) and inner diameter (r) of the wire winding roll (10), and has a central open surface (101) that penetrates vertically, and a winding roll opposing surface (110) which is arranged opposite the upper surface of the wire winding roll (10); A welding wire winding failpack pressing plate is provided, characterized by comprising: a contact hemispherical body (120) which is spaced apart by a set angle on the bottom surface of the winding roll opposing body (110) and formed to protrude downward in a hemispherical shape to directly contact the wire winding roll (10).

[0016] In the welding wire winding failpack pressing plate according to the present invention, the contact hemisphere (120) is formed as a hemisphere having a diameter (d) corresponding to the width (w) of the winding roll opposing face (110), and the wire (11) of the wire winding roll (10) can be drawn out externally while making point contact in the tangential direction of the contact hemisphere (120).

[0018] The welding wire winding failpack pressing plate according to the present invention can have four contact hemispheres (120) spaced apart by a 90° angle on the bottom surface of the winding roll opposing face (110).

[0020] In the welding wire winding failpack pressing plate according to the present invention, the winding roll opposing surface (110) may form a circular recessed line (113) and a circular protruding line (112) that form concentric circles on the bottom surface, so that the wire (11) of the wire winding roll (10) can be drawn out externally while making point contact with the circular protruding line (112).

[0022] According to another feature of the present invention for achieving the above-described purpose, the present invention provides a method for manufacturing a welding wire winding failpack press plate, characterized by comprising: a step of providing a press plate injection molding die having a cavity in which a winding roll opposing face molding space and a contact hemisphere molding space are connected and formed; an injection molding material injection step in which a molding material of the same synthetic resin material is injected into the cavity of the press plate injection molding die; and a press plate injection molding step in which a failpack press plate (100) is injection molded such that the winding roll opposing face (110) and the contact hemisphere (120) are integrally formed of the same material as the molding material filled in the winding roll opposing face molding space and the contact hemisphere molding space of the cavity solidifies. Effects of the invention

[0024] The welding wire winding failpack pressing plate of the present invention and the method of manufacturing the same provide a structure in which a wire moves while making point contact with a contact hemisphere that is in direct contact with the wire winding roll of the failpack, thereby enabling bidirectional movement of the wire and allowing the internal wire to move quickly to the inner wall surface of the failpack as much as the wire is fed externally, and the feeding performance is improved as friction is minimized by point contact. In addition, the welding wire winding failpack pressing plate of the present invention and the method of manufacturing the same allow the entire failpack pressing plate, including the contact hemisphere, to be integrally molded by injection molding, thereby simplifying the manufacturing process, reducing manufacturing costs, and increasing durability. Brief explanation of the drawing

[0026] FIG. 1 is a drawing for showing the vertical cross-sectional structure of a welding wire winding failpack pressing plate according to an embodiment of the present invention placed on the upper surface of the wire winding roll of a failpack; FIG. 2 is a plan view of a welding wire winding failpack pressing plate according to an embodiment of the present invention placed on the upper surface of the wire winding roll of a failpack; FIG. 3(a) is an upper perspective view of a welding wire winding failpack pressing plate according to an embodiment of the present invention; FIG. 3(b) is a lower perspective view of a welding wire winding failpack pressing plate according to an embodiment of the present invention; FIG. 4(a) is an upper plan view of a welding wire winding failpack pressing plate according to an embodiment of the present invention; FIG. 4(b) is a lower plan view of a welding wire winding failpack pressing plate according to an embodiment of the present invention; FIG. 5 is a partial vertical cross-sectional view for showing the iron line and the concave line of a winding roll opposing face according to an embodiment of the present invention; FIGS. 6(a) to (c) are exemplary diagrams for showing point contact between a wire and a contact hemisphere according to the present invention; FIG. 7 is a sequence block diagram of a method for manufacturing a welding wire winding failpack press plate according to the present invention; FIG. 8 is a drawing to illustrate the invention of Korean Patent Registration No. 10-1275113. Specific details for implementing the invention

[0027] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. Meanwhile, in the drawings and detailed description, the illustration and mention of configurations and operations that are easily understood by those skilled in the art have been simplified or omitted. In particular, in the drawings and detailed description, detailed descriptions and illustrations of specific technical configurations and operations of elements not directly related to the technical features of the present invention have been omitted, and only the technical configurations related to the present invention have been briefly illustrated or described.

[0029] The present invention relates to a failpack pressing plate (100) placed on the upper surface of a wire winding roll (10) that is positioned at a set height (H) and width (W) in the internal space (21) of a failpack (20) as shown in FIG. 1. The welding wire winding failpack pressing plate (100) according to the present embodiment is composed of a winding roll opposing surface body (110) and a contact hemisphere (120) as shown in FIG. 1.

[0031] The winding roll opposing body (110) is formed in the shape of a hollow disc with a set width (w) having an outer diameter (R') and an inner diameter (r') corresponding to the outer diameter (R) and inner diameter (r) of the wire winding roll (10) as shown in FIG. 2, and is positioned opposite the upper surface of the wire winding roll (10) as shown in FIG. 1. The winding roll opposing body (110) has a central open surface (101) that penetrates vertically, and the wire (11) passes through the central open surface (101) and is supplied to the outside. The winding roll opposing body (110) according to an embodiment of the present invention forms circular open holes (111) spaced apart at set intervals as shown in FIG. 2 to 4, so that the space between the winding roll opposing body (110) and the upper surface of the wire winding roll (10) is not sealed but allows air to be ventilated to the outside, thereby preventing an increase in temperature or humidity. Meanwhile, the fail pack pressing plate (100) according to an embodiment of the present invention includes a vertical connecting surface (140) that is vertically extended from the inner end portion of the winding roll opposing surface (110) as shown in FIGS. 3 to 5, and a protruding horizontal surface (130) that is horizontally extended inward from the upper end portion of the vertical connecting surface (140).

[0033] The contact hemisphere (120) is spaced apart by a set angle on the bottom surface of the winding roll opposing body (110) and is formed to protrude downward in a hemispherical shape so as to come into direct contact with the wire winding roll (10). In the embodiment of the present invention, four contact hemispheres (120) are spaced apart by a 90° angle on the bottom surface of the winding roll opposing body (110).

[0034] The contact hemisphere (120) may be formed as a hemisphere having a diameter (d) corresponding to the width (w) of the winding roll opposing surface (110) as in FIG. 1, so that the wire (11) of the wire winding roll (10) can be drawn out externally while making point contact in the tangential direction of the contact hemisphere (120) as in FIG. 6. Through this, the frictional force is minimized and the wire feeding capability is increased.

[0036] Meanwhile, the winding roll opposing body (110) according to an embodiment of the present invention forms a circular recessed line (113) and a circular protruding line (112) that form concentric circles on the bottom surface as shown in FIGS. 3 to 5, and the wire (11) of the wire winding roll (10) is drawn out externally while making point contact with the circular protruding line (112). Through this, the frictional force between the winding roll opposing body (110) and the wire (11) is minimized, and the wire feeding capability is increased.

[0038] A method for manufacturing a welding wire winding failpack press plate according to an embodiment of the present invention is performed through the steps of providing a press plate injection molding die, injecting injection molding material, and injecting a press plate injection molding die, as shown in FIG. 7.

[0039] The step of providing a press plate injection molding die is a step in which a press plate injection molding die having a cavity in which a forming space of a coiling roll opposing face and a forming space of a contact hemisphere are connected is provided.

[0040] The injection molding material injection step is the step in which molding material of the same synthetic resin material is injected into the cavity of the injection molding die.

[0041] The injection molding step of the press plate is a step in which a fail pack press plate (100) is injection molded in which the winding roll opposing body (110) and the contact hemisphere (120) are integrally formed from the same material as the molding material filled in the molding space of the cavity and the contact hemisphere molding space solidifies. Here, the contact hemisphere (120) is formed with a shape structure that protrudes convexly from the lower surface of the winding roll opposing body (110) and forms a concave recessed groove (121) on the upper surface of the winding roll opposing body (110), thereby promoting material reduction.

[0043] The welding wire winding fail pack pressing plate according to the embodiment of the present invention configured as above 1) enables bidirectional movement of the wire (11) by means of a contact hemispherical body (120) that is formed to protrude downward in a hemispherical shape and directly contacts the wire winding roll (10) of the fail pack (20), thereby allowing the wire (11) inside to move quickly to the inner wall surface of the fail pack (20) as much as the wire (11) is fed outward, and 2) since the wire (11) is fed while making point contact at the placement position of each contact hemispherical body (120) by means of the contact hemispherical body (120), the wire feeding capability can be maximized. In addition, in the method for manufacturing a welding wire winding failpack press plate according to an embodiment of the present invention, the entire failpack press plate including the contact hemisphere (120) is integrally molded by injection molding, so the manufacturing process is simplified, the manufacturing cost is reduced, and the durability is increased.

[0045] Although a welding wire winding failpack press plate and a method for manufacturing the same according to an embodiment of the present invention as described above have been illustrated in accordance with the description and drawings, this is merely an example, and those skilled in the art will understand that various changes and modifications are possible within the scope of the technical spirit of the present invention. Explanation of the symbols

[0047] 10: Wire winding roll 11 : Wire 20 : Fail Pack 21 : Interior space 100 : Pressing plate 101 : Central open surface 110 : Winding roll opposing facet 111 : Open Hall 112 : Iron Man Line 113: Waistline 120 : Contact hemisphere 121 : Indentation 130 : Protruding horizontal plane 140 : Vertical connecting facet

Claims

Claim 1 A pressing plate (100) placed on the upper surface of a wire winding roll (10) which is positioned at a set height (H) and width (W) in the internal space (21) of a fail pack (20), is configured to include: a winding roll opposing body (110) which is positioned opposite the upper surface of the wire winding roll (10), and has a central open surface (101) that is vertically penetrating, formed in the shape of a hollow disc with a set width (w) having an outer diameter (R') and an inner diameter (r') corresponding to the outer diameter (R) and inner diameter (r) of the wire winding roll (10); and a contact hemispherical body (120) which is positioned spaced apart by a set angle on the bottom surface of the winding roll opposing body (110) and is formed to protrude downward in a hemispherical shape to directly contact the wire winding roll (10). The winding roll opposing body (110) has a circular recess forming a concentric circle on its bottom surface. A welding wire winding failpack pressing plate characterized by forming an intersection between a line (113) and a circular iron line (112), so that the wire (11) of the wire winding roll (10) is drawn out externally while making point contact with the circular iron line (112). Claim 2 A welding wire winding failpack pressing plate according to claim 1, wherein the contact hemisphere (120) is formed as a hemisphere having a diameter (d) corresponding to the width (w) of the winding roll opposing face (110), and the wire (11) of the wire winding roll (10) is drawn out externally while making point contact in the tangential direction of the contact hemisphere (120). Claim 3 A welding wire winding failpack pressing plate according to claim 2, characterized in that four contact hemispheres (120) are spaced apart by a 90° angle on the bottom surface of the winding roll opposing face (110). Claim 4 delete Claim 5 A step of providing a press plate injection molding die having a cavity in which a forming space of a coiling roll opposing face and a forming space of a contact hemisphere are connected; and an injection molding material injection step in which a molding material of the same synthetic resin material is injected into the cavity of the press plate injection molding die. A method for manufacturing a welding wire winding failpack press plate, comprising: a press plate injection molding step in which a molding material filled in the molding space of the winding roll opposite face and the molding space of the contact hemisphere of the cavity solidifies, thereby forming a failpack press plate (100) in which the winding roll opposite face (110) and the contact hemisphere (120) are integrally formed of the same material; wherein the press plate injection molding step is characterized by forming the winding roll opposite face (110) such that a circular recess line (113) and a circular protruding line (112) are formed concentrically on the bottom surface, and the wire (11) of the wire winding roll (10) is drawn out externally while making point contact with the circular protruding line (112).

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