Nozzle Cleaner

Abstract

To provide a nozzle cleaner that can remove sputter without pushing a polishing member into a shield nozzle.SOLUTION: Core members 7 and 31 housed in a main body 1 are reciprocated by compressed air supplied to the main body 1, so as to apply vibrations to a side surface of a shield nozzle 21. When the core member 7 is at one side, a perpendicular ventilation flue 8 communicates with an air supply port 3 of the main body 1, and when the core member 7 moves to the other side, the ventilation flue communicates with an exhaust port 5 of the main body 1. A first air chamber 19 is formed between an end face of a basic end of the core member 7 and the other lid 13, and a second air chamber 20 is formed of the core member 7 and an inner peripheral wall forming a through-hole 2.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a nozzle cleaner for removing spatters adhering to a shield nozzle of a torch nozzle used in gas-shielded arc welding. [Background technology]

[0002] There are shield nozzles in which a coating layer of a spatter adhesion preventative agent such as an ultra-extreme pressure lubricant is formed on the shield nozzle, which not only suppresses the adhesion of spatter, but also allows the attached spatter to only lightly adhere to the coating layer, making it easy to peel off with a weak force. Conventionally, nozzle cleaners for this type of shield nozzle have included those that remove spatter adhered to the shield nozzle by pushing a cylindrical abrasive member made of a material softer than the shield nozzle, such as aluminum or synthetic resin, into the inside of the shield nozzle, as shown in JP 2018-039046 A. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-039046 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned method, the abrasive member is forced into the inside of the shield nozzle to remove the spatter, which has the problem that the coating layer of the shield nozzle may be peeled off or the corners of the abrasive member may come into contact and damage the inside of the shield nozzle, thereby impairing the shield nozzle's ability to prevent spatter from adhering.

[0005] SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and to provide a nozzle cleaner that can remove spatter without forcing an abrasive member into the inside of the shield nozzle. [Means for solving the problem]

[0006] The nozzle cleaner of the present invention, which has been made to solve the above problems, is characterized by the fact that compressed air supplied to the main body causes a core member housed in the main body to reciprocate, thereby applying vibration to the side of the shield nozzle.

[0007] It is preferable that the shield nozzle comprises a main body having a through hole formed therein and an air inlet and an air outlet penetrating the through hole from the outside, a core member having an air passage perpendicular to the axial direction formed in the middle part and a horizontal air passage having one opening in the vertical air passage and the other opening in the end face of the base end, the core member being housed in the through hole of the main body so as to be able to move back and forth, one lid having a protrusion on the surface side that closes one opening of the through hole and comes into contact with the side of the shield nozzle, and the other lid that closes the other opening of the through hole, wherein when the core member is positioned on the other side, the vertical air passage communicates with the air inlet of the main body, and when the core member is moved to the one side, it communicates with the air outlet of the main body, a first air chamber is formed between the end face of the base end of the core member and the other lid, and a second air chamber is formed by the core member and an inner wall that forms the through hole of the main body, and the core member is reciprocated by compressed air supplied from the air inlet of the main body to apply vibration to the side of the shield nozzle, and this Claim 1 The invention is defined as the invention relating to the above.

[0008] [Effects of the Invention]

[0009] The present invention In this device, compressed air is supplied to the main body to reciprocate the core member housed in the main body, thereby vibrating the side of the shield nozzle, thereby vibrating the shield nozzle and removing spatter without having to push an abrasive member into the inside of the shield nozzle, resulting in the effect of not damaging the inside of the shield nozzle and not impairing its ability to prevent spatter from adhering.

[0010] Claim 1In the invention described above, the device comprises a main body in which a through hole is formed, and in which an air inlet and an air outlet that penetrate the through hole from the outside are formed, a ventilation passage perpendicular to the axial direction is formed in the middle part, and a horizontal ventilation passage is formed with one end opening to this vertical ventilation passage and the other end opening to the end face of the base end, a core member stored in the through hole of the main body so as to be able to move back and forth, one lid which closes one opening of the through hole and has a protrusion on the surface side which abuts against the side of the shield nozzle, and the other lid which closes the other opening of the through hole, when the core member is positioned on the other side, the vertical ventilation passage communicates with the air inlet of the main body, and when the core member is moved to one side, it communicates with the air outlet of the main body, a first air chamber is formed between the end face of the base end of the core member and the other lid, and a second air chamber is formed by the core member and the inner wall which forms the through hole of the main body, and the core member is reciprocated by compressed air supplied from the air inlet of the main body to vibrate the side of the shield nozzle, thereby having the effect of facilitating control of the compressed air.

[0011] [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 is a front cross-sectional view of a first embodiment. [Figure 2] FIG. 2 is a front cross-sectional view of a state in which the core of FIG. 1 has moved. [Figure 3] FIG. 1 is a plan view of a first embodiment. [Figure 4] FIG. 1 is a side view of the first embodiment. [Figure 5] FIG. 10 is a front cross-sectional view of a reference embodiment. [Figure 6] FIG. 6 is a front cross-sectional view of a state in which the core of FIG. 5 has moved. [Figure 7] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0013] A first embodiment of the present invention will be described below with reference to FIGS. 1 to 4. FIG.

[0014] Reference numeral 1 denotes a rectangular prism-shaped main body with its long sides running horizontally, and a through-hole 2 is formed in the horizontal axis direction with a step provided in the main body 1, with one side being a small diameter section 2a and the other being a large diameter section 2b, and an air inlet 3 is drilled through the large diameter section 2b from the top near the step, and an exhaust port 5 is drilled through the inner peripheral wall in the middle of the small diameter section 2a from the top of a recess 4 provided around the entire periphery. An attachment plate 6 is provided at the bottom end of the main body 1.

[0015] Reference numeral 7 denotes a core member having an approximately cylindrical shape with a stepped narrow diameter portion 7a and a thick diameter portion 7b at the base end. A ventilation passage 8 is drilled in the middle of the thin diameter portion 7a of the core member 7 in a direction perpendicular to the axis, and a ventilation passage 9 is drilled in the middle of the ventilation passage 8, with one end opening and the other opening on the end face of the thick diameter portion 7b at the base end.

[0016] Reference numeral 10 denotes one of the lids attached to one side of the main body 1 with a bolt 11 to close an opening 2c, and a protrusion 12 having an approximately V-shaped notch 12a with an open tip is provided on the surface side of the lid 10.

[0017] Reference numeral 13 denotes the other lid attached to the other side of the main body 1 with bolts 14 to close the opening 2d, and reference numeral 15 denotes a gasket that prevents air from leaking between the lid 13 and the main body 1, and reference numeral 16 denotes a gasket that prevents air from leaking between the lid 10 and the main body 1.

[0018] Reference numeral 17 denotes a vibration-isolating rubber with protruding bolts on both the top and bottom sides. The vibration-isolating rubber 17 is interposed between the nozzle cleaner mounting plate 6 and the installation plate 18, and prevents the vibration of the nozzle cleaner from being transmitted to the installation plate 18.

[0019] Next, the method of assembling the nozzle cleaner in the above embodiment will be described. The tip of the thin-diameter portion 7a of the core member 7 is inserted into the large-diameter portion 2b of the through-hole 2 through the opening 2d on the other side of the main body 1, and the thick-diameter portion 7b at the base end is fitted into the large-diameter portion 2b of the through-hole 2. The core member 7 is stored in the through-hole 2 of the main body 1 so that the thin-diameter portion 7a of the core member 7 slides against the inner wall surface of the small-diameter portion 2a of the through-hole 2 of the main body 1 and the thick-diameter portion 7b slides against the inner wall surface of the large-diameter portion 2b. When the core member 7 is in the other position shown in Figure 1, the ventilation passage 8 perpendicular to the axis of the core member 7 communicates with the air intake port 3, and when the core member 7 is in the one position shown in Figure 2, the ventilation passage 8 communicates with the exhaust port 5.

[0020] Thereafter, one of the lids 10 is attached to the main body 1 with a bolt 11 so as to close the opening 2c on one side of the main body 1, and the other lid 13 is attached to the main body 1 with a bolt 15 so as to close the opening 2d on the other side of the main body 1, forming a first air chamber 19 between the end face of the thick-diameter portion 7b of the core member 7 and the other lid 13, and a second air chamber 20 between the thin-diameter portion 7a of the core member 7 and the inner wall forming the through hole 2 of the main body 1.

[0021] Further, to explain the operation of the nozzle cleaner in the above embodiment, as shown in Figure 1, when core member 7 is positioned on the other side and shield nozzle 21 is in contact with the side surface of substantially V-shaped notch 12a of protrusion 12 of one of lids 10 as shown by the dashed dotted line, and compressed air is supplied from air intake port 3, the supplied compressed air passes from vertical ventilation passage 8 of core member 7 through horizontal ventilation passage 9 and is supplied to first air chamber 19, sliding core member 7 and moving core member 7 shown in Figure 2 to one side.

[0022] At this time, the air in the second air chamber 20 passes between the peripheral wall of the small diameter portion 2 a of the through-hole 2 in the main body 1 and the small diameter portion 7 a of the core member 7 and is exhausted from the exhaust port 5 .

[0023] When the supply of compressed air continues, the compressed air is supplied to the second air chamber 20 and moves the core member 7 to the other side.

[0024] At this time, the air in the first air chamber 19 passes from the horizontal ventilation passage 9 of the core member 7 to the vertical ventilation passage 8 and is exhausted from the exhaust hole 5 .

[0025] As described above, while compressed air is being supplied to the core member 7, the core member 7 repeatedly moves back and forth from one side to the other and from one side to the other, causing the nozzle cleaner to vibrate. This vibration of the nozzle cleaner is transmitted to the shield nozzle 21 via the protrusion 12 of one of the lids 10, removing spatter adhering to the shield nozzle 21.

[0026] next Reference form 5 to 7, the operating principle of the core member is the same as that of the first embodiment, so only the differences from the first embodiment will be explained. A hammer member 32 is screwed into the center of the end face of the small diameter portion 31a of the core member 31 so as to protrude from one opening 2c of the through hole 2 of the main body 1.

[0027] next, Reference form The operation will be described below. As shown in FIG. 5, the side surface of the shield nozzle 21 indicated by the dashed line is placed in a state of being separated from the hammer member 32.

[0028] Thereafter, when compressed air is supplied from air inlet 3, core member 31 is moved to one side in the same way as in the first embodiment, and hammer member 32 strikes the side of shield nozzle 21 as shown in FIG. 6, causing vibration to occur in shield nozzle 21, and thereafter, similar to the first embodiment, core member 31 continues to reciprocate and hammer member 32 continues to strike shield nozzle 21 until the supply of compressed air is stopped, causing vibration to occur in shield nozzle 21 and removing spatter from shield nozzle 21.

[0029] As described above, according to the present invention, by using compressed air supplied to the main body 1 to reciprocate the core members 7, 31 stored in the main body 1 and vibrate the side of the shield nozzle 21, spatter can be removed without forcing an abrasive member into the inside of the shield nozzle 21, and there is no risk of damaging the inside of the shield nozzle or impairing its ability to prevent spatter adhesion.

[0030] Furthermore, since the core member 7 reciprocates simply by supplying compressed air from one air inlet 3, there is no need to change the air inlet 3 depending on the direction of movement of the core member 7, making it easier to control the compressed air. [Explanation of symbols]

[0031] 1 Main unit 2 through holes 2a Small diameter section 2b Large diameter part 2c aperture 2d aperture 3 Air supply port 4 recess 5 exhaust port 6 Mounting plate 7 Core member 7a Narrow diameter part 7b Large diameter part 8 Ventilation duct 9 Ventilation duct 10 Lid 12 protrusions 12a Roughly V-shaped notch 13 Lid 19 First air chamber 20 Second air chamber 31 Core member 31a narrow diameter part 32 Hammer parts

Claims

[Claim 1] A nozzle cleaner comprising: a main body having a through hole formed therein, and an air intake port and an air exhaust port that penetrate the through hole from the outside; a core member having an axial and perpendicular ventilation passage formed in the middle section, and a horizontal ventilation passage with one end opening into this vertical ventilation passage and the other opening into the end face of the base end; a core member stored in the through hole of the main body so as to be able to move back and forth; one lid that closes one opening of the through hole and has a protrusion on the surface side that abuts against the side of the shield nozzle; and the other lid that closes the other opening of the through hole; when the core member is positioned on the other side, the vertical ventilation passage communicates with the air intake port of the main body, and when the core member is moved to one side, it communicates with the air exhaust port of the main body; a first air chamber is formed between the end face of the base end of the core member and the other lid; and the core member is moved back and forth between the core member and the through hole of the main body to apply vibration to the side of the shield nozzle.

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