Flame adjustment nozzle for gas welding

Abstract

The present invention relates to a flame adjustment nozzle for gas welding, the nozzle comprising: an outer nozzle having an outer nozzle body and an outer split blade; an inner nozzle inserted into the outer nozzle and having an inner split blade and an inner nozzle body; and a flame adjustment nut coupled to the exterior of the outer nozzle body, wherein the flame adjustment nut applies pressure to the outer split blade while moving along the longitudinal direction of the outer nozzle body, thereby adjusting the diameter of the outlet of the outer split blade and the outlet of the inner split blade to control the spraying range of a flame that is sprayed from the nozzle. Therefore, the spraying length, spraying speed, spraying range, etc. of the flame sprayed from the nozzle can be easily adjusted to improve the quality of gas welding.

Description

Flame-adjustable nozzle for gas welding

[0001] The present invention relates to a flame control nozzle for gas welding, which can easily control the size, speed, spray range, etc. of a welding flame sprayed from a torch in gas welding.

[0002] Welding is a highly efficient manufacturing and processing method across industries, and its types are further subdivided by application. Gas welding, a sub-branch of welding, is widely used in the field due to its simple equipment, and is particularly prevalent in pipe welding.

[0003] The quality of gas welding is fundamentally determined by the user's functional capabilities. If the equipment maximizes the user's capabilities, the weld quality is likely to improve. Factors that directly impact quality in gas welding include the temperature and shape of the welding flame. The flame temperature varies depending on the material being welded and can generally be controlled by adjusting the distance between the flame and the base material and the ratio of gas to oxygen.

[0004] In conventional methods, the gas flow rate is fixed and the temperature is set by adjusting the oxygen flow rate. However, changes in the oxygen flow rate can also affect the shape and length of the flame. If the flame is too sharp, the base material that comes into contact with the flame tip can be instantly heated and melted. If the flame spreads radially, the ideal temperature for welding cannot be reached, or the heat cannot be transferred evenly, resulting in poor weld quality. Since these flame and flow rate adjustments are typically determined by the user's skill level, there is also the problem of variations in weld quality across users.

[0005] In the present invention, it is intended to provide a flame control nozzle for gas welding, which is equipped with an outer nozzle, an inner nozzle, and a flame control nut and combined to easily control the spray speed, spray range, spray size, etc. of the welding flame in gas welding.

[0006] In addition, the present invention seeks to provide a flame control nozzle for gas welding in which the position of the flame control nut is adjusted by moving along the threads of the outer nozzle so as to precisely control the spray size, spray range, etc. of the welding flame.

[0007] In addition, the present invention seeks to provide a flame control nozzle for gas welding in which the end face of the flame control nut is formed by chamfering so that the position of the flame control nut can be easily adjusted.

[0008]

[0009] The purpose of the embodiments of the present invention is not limited to the purpose mentioned above, and other purposes not mentioned will be clearly understood by those skilled in the art to which the present invention pertains from the description below.

[0010] According to one embodiment of the present invention, a flame control nozzle for gas welding may be provided, including an outer nozzle having an outer nozzle body and outer split blades, an inner nozzle inserted into the interior of the outer nozzle and having an inner split blade and an inner nozzle body, and a flame control nut coupled to the exterior of the outer nozzle body, wherein the flame control nut moves along the longitudinal direction of the outer nozzle body to pressurize the outer split blades, thereby controlling the diameter of the outlets of the outer split blades and the inner split blades, thereby controlling the spray range of a flame sprayed from the nozzle.

[0011]

[0012] In addition, according to one embodiment of the present invention, a flame control nozzle for gas welding may be provided in which the outer split blades are provided in a plurality of pieces and an outer slit portion is formed between each of the outer split blades.

[0013]

[0014] In addition, according to one embodiment of the present invention, a flame control nozzle for gas welding may be provided in which the outer split wing is formed in a shape that slopes downward from the center to both sides in the longitudinal direction.

[0015]

[0016] In addition, according to one embodiment of the present invention, a flame control nozzle for gas welding may be provided in which the outer split wing is provided to have compression resistance against pressure in the thickness direction.

[0017]

[0018] In addition, according to one embodiment of the present invention, a flame control nozzle for gas welding may be provided in which the inner split blade is divided into a plurality of pieces and an inner slit is formed between each of the inner split blades.

[0019]

[0020] In addition, according to one embodiment of the present invention, a flame control nozzle for gas welding may be provided, which is formed to be bent outward at a predetermined angle based on the longitudinal direction of the inner nozzle body.

[0021]

[0022] In addition, according to one embodiment of the present invention, a flame control nozzle for gas welding may be provided in which the inner split wing is provided to have compression resistance against pressure in the thickness direction.

[0023]

[0024] In addition, according to one embodiment of the present invention, when the inner nozzle is inserted into the outer nozzle, a flame control nozzle for gas welding can be provided in which the inner split blade is positioned in the outer slit portion to block the inside so that the welding gas does not leak out to the outside through the outer slit portion.

[0025]

[0026] In addition, according to one embodiment of the present invention, a flame control nozzle for gas welding may be provided in which a male thread is formed on the outer nozzle body, a female thread is formed on the flame control nut, and the flame control nut is screw-connected to the outer nozzle body.

[0027]

[0028] In addition, according to one embodiment of the present invention, a flame control nozzle for gas welding can be provided in which, when the flame control nut moves in the direction of the outer nozzle body along the male screw thread of the outer nozzle body, the diameter of the discharge port of the outer split blade becomes smaller.

[0029]

[0030] In addition, according to one embodiment of the present invention, a flame control nozzle for gas welding can be provided in which the diameter of the discharge port of the outer split blade increases when the flame control nut moves in the opposite direction of the outer nozzle body along the male screw thread of the outer nozzle body.

[0031] In the present invention, an outer nozzle, an inner nozzle, and a flame control nut are provided, and these components are combined into an assembly, so that the spray speed, spray range, spray size, etc. of the welding flame in gas welding can be easily controlled.

[0032]

[0033] In addition, in the present invention, the position of the flame control nut is adjusted as the flame control nut moves along the screw thread of the outer nozzle, thereby enabling precise control of the spray size, spray range, etc. of the welding flame.

[0034]

[0035] In addition, in the present invention, the end face of the flame control nut is formed by chamfering, so that the position of the flame control nut can be easily adjusted.

[0036] FIG. 1 is a drawing illustrating a flame controllable nozzle for gas welding according to one embodiment of the present invention.

[0037] FIG. 2 is a drawing illustrating a state in which the discharge port of a flame control nozzle for gas welding according to one embodiment of the present invention is controlled.

[0038] FIG. 3 is a drawing illustrating an exploded configuration of a flame control nozzle for gas welding according to one embodiment of the present invention.

[0039] FIG. 4 is a drawing illustrating a case where a flame control nut of a flame control nozzle for gas welding according to one embodiment of the present invention is at zero stroke.

[0040] FIG. 5 is a drawing illustrating a case where a flame control nut of a flame control nozzle for gas welding according to one embodiment of the present invention is at its maximum stroke.

[0041] FIG. 6 is a drawing illustrating a flame control nut of a flame control nozzle for gas welding according to one embodiment of the present invention.

[0042] The advantages and features of embodiments of the present invention, and methods for achieving them, will become clearer with reference to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms. These embodiments are provided only to ensure that the invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Like reference numerals designate like elements throughout the specification.

[0043] When describing embodiments of the present invention, detailed descriptions of known functions or configurations will be omitted if they are deemed to unnecessarily obscure the gist of the invention. Furthermore, the terms described below are defined in light of their functions in the embodiments of the present invention and may vary depending on the intent or custom of the user or operator. Therefore, their definitions should be based on the overall content of this specification.

[0044] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0045]

[0046] FIG. 1 is a drawing illustrating a flame control nozzle for gas welding according to an embodiment of the present invention, FIG. 2 is a drawing illustrating a state in which an outlet of a flame control nozzle for gas welding according to an embodiment of the present invention is adjusted, FIG. 3 is a drawing illustrating a configuration of a flame control nozzle for gas welding according to an embodiment of the present invention by disassembling it, FIG. 4 is a drawing illustrating a case in which a flame control nut of a flame control nozzle for gas welding according to an embodiment of the present invention is at zero stroke, FIG. 5 is a drawing illustrating a case in which a flame control nut of a flame control nozzle for gas welding according to an embodiment of the present invention is at maximum stroke, and FIG. 6 is a drawing illustrating a flame control nut of a flame control nozzle for gas welding according to an embodiment of the present invention.

[0047]

[0048] With respect to the longitudinal direction of the flame control nozzle (100) for gas welding according to one embodiment of the present invention, the forward direction or forward direction may mean the direction in which welding gas is discharged from the flame control nozzle and a welding flame is generated, and the backward direction or backward direction may mean the direction in which welding gas is introduced into the flame control nozzle.

[0049]

[0050] Referring to FIGS. 1 to 6, a flame control nozzle (100) for gas welding according to one embodiment of the present invention may include an outer nozzle (110), an inner nozzle (120), a flame control nut (130), etc.

[0051]

[0052] The outer nozzle (110) may include an outer nozzle body (111) and outer split blades (112), etc. The outer nozzle (110) according to one embodiment of the present invention may be formed to have a length of about 60 mm. The inner nozzle (120) may be inserted and coupled into the inner nozzle (110) in a fitting manner. In addition, a flame control note (130) may be coupled to the outer portion of the outer nozzle (110) and moved in the longitudinal direction of the outer nozzle (110), thereby adjusting the size of the discharge port of the flame control nozzle (100).

[0053]

[0054] The outer nozzle body (111) is formed in a cylindrical shape and may be formed of a material such as brass. An outer split wing (112) may be formed on one side of the outer nozzle body (111). Here, rather than the outer nozzle body (111) and the outer split wing (112) being formed independently, it is more preferable that the outer split wing (112) be a member formed by extending a portion of the outer nozzle body (111).

[0055] According to one embodiment of the present invention, a male screw thread (114) may be formed on the outer surface of the outer nozzle body (111). The male screw thread (114) may be formed from the other end of the outer nozzle body (111) to a position where the outer nozzle body (111) and the outer split blade (112) are separated. Accordingly, as the female screw thread (131) is formed on the flame control nut (130), the flame control nut (130) may move forward or backward along the male screw thread (114) of the outer nozzle body (111).

[0056]

[0057] The outer split wing (112) is formed by being split into multiple pieces, and an outer slit portion (113) can be formed between each outer split wing (112).

[0058] The outer split blade (112) according to one embodiment of the present invention may be formed with an upwardly inclined surface extending in an upward direction in the longitudinal direction of the outer nozzle (110), and a downwardly inclined surface in which the upwardly inclined surface is bent to form a downward slope. Accordingly, the outer split blade (112) may be formed in a shape that slopes downward from the central portion to both sides.

[0059] In addition, the outer split blade (112) may be formed to have compressive resistance to pressure in the thickness direction. When the flame control nut (130) continuously moves in the direction of the outer split blade (112), i.e., in the forward direction, the flame control nut (130) may move along the upward slope of the outer split blade (112). Here, the forward movement of the flame control nut (130) may be resisted by the upward slope of the outer split blade (112). In this case, the flame control nut (130) may move forward while pressing the outer split blade (112). When the flame control nut (130) presses the outer split blade (112), the outer split blade (112) may be pressurized. Since the outer split blade (112) is formed of a rigid material such as brass, the outer split blade (112) itself is not compressed and deformed, but the angle of the outer split blade (112) (particularly, the inclination angle of the upper slope) can be reduced. Accordingly, at the discharge port (110a) portion of the outer nozzle (110), which is one end portion of the outer split blade (112), the distance between the plurality of outer split blades (112) is reduced (i.e., the distance between the outer slit portions (113) at the discharge port portion is reduced), so that the diameter of the discharge port (110a) of the outer nozzle (110) can be reduced.

[0060] However, even if the flame control nut (130) moves forward and applies pressure to the outer split blade (112), it is difficult for the upward slope angle of the outer split blade (112) to become 0 degrees due to the rigidity of the outer nozzle (110). In addition, due to the pressure of the flame control nut (130), the distance between the plurality of outer split blades (112) at the discharge port (110a) of the outer nozzle (110) is reduced, and when the plurality of outer split blades (112) come into contact with each other, the distance between the outer split blades (112) can no longer be reduced. In such a case, the flame control nut (130) may be prevented from moving forward.

[0061]

[0062] The outer slit portion (113) is an opening formed between a plurality of outer split blades (112). When the outer split blades (112) are pressurized by the flame control nut (130), the distance between the outer split blades (112) at the end of the outer nozzle (110) can be shortened, and the outer split blades (112) can be pressurized until the edge of the outer slit portion (113) becomes a closed curve.

[0063] In addition, since the outer slit portion (113) is of an open type, when the outer nozzle (110) and the inner nozzle (120) are combined, the inner split wing (122) of the inner nozzle (120) can be in close contact with the lower portion of the outer slit portion (113) so that the welding gas does not leak out through the outer slit portion (113). Here, so that the inner split wing (122) can completely close the outer slit portion (113), the inner split wing (122) can be in contact with the outer slit portion (113), and the width of the inner split wing (122) can be formed to be larger than the width of the outer slit portion (113).

[0064]

[0065] The inner nozzle (120) is inserted into the interior of the outer nozzle (110) and may include an inner nozzle body (121) and inner split blades (122).

[0066] The inner nozzle (120) can be inserted into the interior of the outer nozzle (110) and combined with the outer nozzle (110). As the inner nozzle (120) is inserted into the interior of the outer nozzle (110) in a force-fit manner, the inner nozzle (120) can be fixed to the interior of the outer nozzle (110).

[0067] Additionally, the inner nozzle (120) may be formed to correspond to the length of the outer nozzle (110). Accordingly, the inner nozzle (120) may be formed to have a length of about 60 mm.

[0068]

[0069] The inner nozzle body (121) is formed in a cylindrical shape and may be formed of a material such as brass. An inner split wing (122) may be formed on one side of the inner nozzle body (121). Here, rather than the inner nozzle body (121) and the outer split wing (112) being independently formed members, it is more preferable that the inner split wing (122) be a member formed by extending a portion of the inner nozzle body (121).

[0070] In addition, as a tab (not shown) is formed on the inside of the inner nozzle body (121), a gas welding torch or the like can be connected, and welding gas can be introduced through the opening on the other side of the inner nozzle (120).

[0071]

[0072] The inner split wing (122) is formed by being divided into a plurality of pieces, and an inner slit portion (123) can be formed between each inner split wing (122).

[0073] The inner split wing (122) according to one embodiment of the present invention can be extended by forming an upward slope in the longitudinal direction of the inner nozzle (120).

[0074] In addition, the inner split blade (122) may be formed to have compression resistance against pressure in the thickness direction. As the flame control nut (130) presses the outer split blade (112), the inner diameter of the outer split blade (112) may decrease. Accordingly, the inner split blade (122) located on the inner side of the outer split blade (112) may also receive pressure. Since the inner split blade (122) is formed of a rigid material such as brass, the inner split blade itself is not compressed, and the upward inclination angle of the inner split blade (122) may decrease. Accordingly, the inner diameter of the inner split blade (122) may also decrease. In addition, at the discharge port (120a) portion of the inner nozzle (120), which is one end portion of the inner split blade (122), the distance between the plurality of inner split blades (122) is reduced (i.e., the distance between the inner slit portions (123) at the discharge port portion is reduced), so that the diameter of the discharge port (120a) of the inner nozzle (120) can be reduced.

[0075] When the inner nozzle (120) according to one embodiment of the present invention is inserted into the interior of the outer nozzle (110), the inner nozzle (120) can be inserted so that the inner split wing (122) is positioned at the lower portion of the outer slit portion (113).

[0076] The outer nozzle (110) is formed with an open outer slit portion (113). Therefore, when welding gas is introduced from the outside into the flame control nozzle (100), the welding gas may leak out through the outer slit portion (113). If the welding gas leaks out, the efficiency of generating a welding flame may decrease, and it may be difficult to control the length or range of the generated flame.

[0077] In one embodiment of the present invention, when the inner split wing (122) is positioned at the lower portion of the outer slit portion (113) and the inner split wing (122) is in close contact with the lower portion of the outer slit portion (113), the outside and the inside of the flame control nozzle (100) can be blocked by the outer slit portion (113), so that the welding gas can be prevented from leaking to the outside through the outer slit portion (113).

[0078] In addition, the inner split wing (122) according to one embodiment of the present invention may be formed in a plurality of pieces, and need not be provided in the same number as the number of outer split wings (112). However, if the inner split wing (122) is formed in a smaller number than the outer split wing (112), the inner split wing (122) cannot block all of the outer slit portions (113) formed in the number of outer split wings (112). Accordingly, the inner split wing (122) may be formed in a number greater than the number of outer split wings (112).

[0079]

[0080] The flame control nut (130) is coupled to the outside of the outer nozzle body (111), and moves along the length direction of the outer nozzle body (111) to pressurize the outer split blade (112), thereby adjusting the diameter of the discharge port of the outer split blade (112) and the inner split blade (122), thereby controlling the spray range of the flame from the nozzle ().

[0081] A flame control nut (130) according to one embodiment of the present invention may be formed in the shape of a bolt with a hollow interior. In addition, since the inner diameter of the flame control nut (130) is formed to correspond to the outer diameter of the outer nozzle (110), the outer nozzle (110) may penetrate into the inner side of the flame control nut (130).

[0082] In addition, as the female thread (131) is formed on the inner surface of the flame control nut (130), the flame control nut (130) can move forward or backward along the male thread (114) of the outer nozzle (110).

[0083] According to one embodiment of the present invention, when the flame control nut (130) is inserted into the outer nozzle (110), the size of the terminal diameter of the outer split blade (112) and the terminal diameter of the inner split blade (122) can be adjusted by moving the flame control nut (130) forward or backward.

[0084] As described above, when the flame control nut (130) advances, the flame control nut (130) can advance while pressing the upward slope of the outer split blade (112), and the inner diameter of the outer split blade (112) is reduced by the pressure of the flame control nut (130), and the diameter of the end portion of the outer split blade (112) can also be reduced. In addition, as the inner diameter of the outer split blade (112) is reduced, the inner diameter of the inner split blade (122) located inside the outer split blade (112) is reduced, and the diameter of the end portion of the inner split blade (122) can also be reduced.

[0085] In this way, the diameter of the discharge port (120a) of the flame-adjustable nozzle (100) can be adjusted depending on the position of the flame-adjustable nut (130) on the outer nozzle (110).

[0086] Also, referring to FIG. 6, the flame control nut (130) according to one embodiment of the present invention can advance while pushing the upward slope of the outer split blade (112) while advancing. In this case, the cross-section of one end of the flame control nut can be formed as a chamfer so that the flame control nut (130) can easily advance while pushing the outer split blade (112).

[0087] Referring to FIG. 4, when the inner nozzle (120) is coupled to the outer nozzle (110) in a fitting manner and the flame control nut (130) is coupled to the outer nozzle body (111), the length of the flame control nozzle according to one embodiment of the present invention can be formed to be about 60 mm. In addition, in a zero stroke state where the flame control nut (130) does not move, the diameter of the discharge port of the flame control nozzle (100) (i.e., the diameter of the end face of the inner nozzle (120)) can be formed to be about 8 mm.

[0088] In addition, referring to FIG. 5, when the flame control nut (130) according to one embodiment of the present invention moves by the maximum range of strokes that it can advance, the flame control nut (130) can move about 12.36 mm. In this case, the diameter of the discharge port of the flame control nozzle (100) (i.e., the diameter of the end face of the inner nozzle (120)) can be formed to be about 6.5 mm.

[0089] As described above, the diameter of the discharge port of the flame control nozzle (100) may vary depending on the position of the flame control nut (130) according to one embodiment of the present invention, and the spray length, spray range, etc. of the flame for gas welding may be adjusted depending on the difference in the diameter of the discharge port.

[0090] When the amount of welding gas, oxygen, etc. injected into the flame control nozzle (100) is constant, the spray length of the gas welding flame can be formed shorter when the flame control nut (130) is positioned at the zero stroke than when the flame control nut (130) is positioned at the maximum stroke. In addition, the spray thickness of the gas welding flame can be formed thicker when the flame control nut (130) is positioned at the zero stroke than when it is positioned at the maximum stroke. In addition, the spray range of the gas welding flame can be formed wider when the zero stroke is than when it is positioned at the maximum stroke.

[0091] That is, when the flame control nut (130) is positioned at the zero stroke, the gas welding flame can be sprayed in a relatively short, thick, and wide range. In addition, when the flame control nut (130) is positioned at the maximum stroke, the gas welding flame can be sprayed in a relatively long, thin, and narrow range.

[0092] Accordingly, a gas welding operator can adjust the size of the gas welding flame, etc. according to the operator's needs by adjusting the position of the flame adjustment nut (130) after setting the flame adjustment nozzle (100) to supply welding gas, oxygen, etc. at a constant level.

[0093]

[0094] Although the above description has presented and described various embodiments of the present invention, the present invention is not necessarily limited thereto, and a person having ordinary skill in the technical field to which the present invention pertains will easily understand that various substitutions, modifications, and changes are possible within a scope that does not depart from the technical spirit of the present invention.

Claims

1. An outer nozzle having an outer nozzle body and outer split blades, An inner nozzle inserted into the inner side of the outer nozzle and having an inner split wing and an inner nozzle body; Including a flame control nut coupled to the outside of the outer nozzle body, The above flame control nut, By moving along the longitudinal direction of the outer nozzle body, the outer split blade is pressed, and the diameter of the outlet of the outer split blade and the inner split blade is adjusted to control the spray range of the flame sprayed from the nozzle. Flame adjustable nozzle for gas welding.

2. In paragraph 1, The above outer split wing is, It is divided into multiple pieces, and an outer slit is formed between each outer split wing. Flame adjustable nozzle for gas welding.

3. In paragraph 2, The above outer split wing is, It is formed in a shape that slopes downward from the center to both sides in the longitudinal direction. Flame adjustable nozzle for gas welding.

4. In paragraph 3, The above outer split wing is, Equipped to have compression resistance against pressure in the thickness direction, Flame adjustable nozzle for gas welding.

5. In paragraph 4, The above inner split wing is, A flame control nozzle for gas welding, which is provided in multiple pieces and has an inner slit formed between each inner split wing.

6. In paragraph 5, The above inner split wing is, A flame-adjustable nozzle for gas welding, formed to be bent outward at a predetermined angle based on the longitudinal direction of the inner nozzle body.

7. In paragraph 6, The above inner split wing is, Equipped to have compression resistance against pressure in the thickness direction, Flame adjustable nozzle for gas welding.

8. In paragraph 7, When the inner nozzle is inserted into the outer nozzle, the inner split wing is positioned in the outer slit portion, Blocking the inside to prevent welding gas from leaking out through the outer slit portion. Flame adjustable nozzle for gas welding.

9. In paragraph 8, A male screw thread is formed on the outer nozzle body, and a female screw thread is formed on the flame control nut, so that the flame control nut is screw-connected to the outer nozzle body. Flame adjustable nozzle for gas welding.

10. In paragraph 9, The above flame control nut, When moving in the direction of the outer nozzle body along the screw thread of the outer nozzle body, the diameter of the discharge port of the outer split blade becomes smaller. Flame adjustable nozzle for gas welding.

11. In paragraph 10, The above flame control nut, When moving in the opposite direction of the outer nozzle body along the screw thread of the outer nozzle body, the diameter of the discharge port of the outer split blade increases. Flame adjustable nozzle for gas welding.

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