JP4866144B2 - Rotating atomizing oiling device for linear objects - Google Patents

Description

  The present invention is used in, for example, a manufacturing process of a welding wire, and is preferably used for applying lubricating oil for imparting rust resistance to the surface of a traveling welding wire. The present invention relates to a rotary atomizing oiling device for objects.

  When manufacturing a welding wire, in the lubricating oil coating process, the welding wire that has been finished and drawn to the product diameter is run while the surface of the welding wire is subjected to rust resistance and smoothness when using the wire. Lubricating oil for imparting proper feedability is applied. Japanese Patent Application Laid-Open No. 2003-320481 (Patent Document 1) shows an example of an apparatus used for applying such lubricating oil. A conventional welding wire oiling device (lubricant coating device) will be described with reference to FIG. FIG. 9 is a diagram showing a configuration of a conventional oiling device for a welding wire, in which (a) is a front view and (b) is a side view. In FIG. 9B, the welding wires 12 and 12 are not shown.

  As shown in FIG. 9, two welding wires 12 and 12 run in the horizontal direction in the coating booth (oil coating chamber) 11. A rotating cup (oil atomizing rotating cup) 13 is disposed in the center of the region where the traveling welding wires 12, 12 face each other, and the rotating cup 13 is connected to a driving device 14. Thus, the center axis is rotationally driven. The rotating cup 13 is expanded from the proximal end side to the distal end side. The base end of the rotating cup 13 and the tank 9 outside the coating booth 11 are connected by a pipe 15, and lubricating oil (lubricant) 10 is stored in the tank 9.

  Further, a high voltage generator (high voltage power source) 20 is connected to the rotary cup 13, and the rotary cup 13 has a negative potential with respect to the welding wires 12 and 12 to be grounded.

In the oil coating apparatus configured as described above, the lubricating oil 10 is cut out by a predetermined amount by the pump 8 and supplied to the base end portion of the rotary cup 13 in the coating booth 11. The rotating cup 13 is driven to rotate at a predetermined rotational speed by a driving device 14, and the supplied lubricating oil is sprayed from the surface of the rotating cup 13 in a direction perpendicular to the rotating shaft by a centrifugal force, atomized, and rotated. It scatters radially in a plane perpendicular to the rotation axis of the cup 13. In this case, the atomized lubricating oil particles are charged by the high voltage applied to the rotating cup 13. By spraying the atomized and charged lubricating oil particles radially toward the welding wires 12 and 12 and applying an electrostatic force between the rotary cup 13 and the welding wires 12 and 12, Lubricating oil particles are applied to the welding wires 12 and 12 running in the horizontal direction at positions facing each other with the rotating cup 13 therebetween. In this manner, the lubricating oil is applied to the welding wires 12 and 12.
Japanese Patent Laying-Open No. 2003-320481 (FIG. 3)

  However, in the conventional welding wire oiling device described above, the lubricating oil is atomized by the centrifugal force generated by the rotation of the rotating cup 13 and the atomized lubricating oil particles are applied by the high voltage applied to the rotating cup 13. And the lubricating oil particles are applied to the welding wires 12 and 12 by utilizing electrostatic force, and thus have the following drawbacks. That is, depending on the type of the lubricating oil, it is charged to promote the oxidation of the lubricating oil (for example, a plant-based lubricating oil) and cause deterioration of the lubricating oil quality, so that it is applied to the welding wires 12 and 12. The lubricating oil collected at the bottom of the coating booth 11 was not recovered and reused. Lubricating oil application efficiency (the amount of oil on the wire surface / the amount of lubricating oil supplied to the rotating cup) is about several to ten and several percent, and a considerable amount of lubricating oil accumulates at the bottom of the coating booth 11, This was not reused.

  Therefore, an object of the present invention is to eliminate the need to use electrostatic force, and to apply oil agent particles atomized by a rotating cup for oil atomization to a traveling linear object, the oil agent particles are applied to the linear object surface circle. Rotating atomization type coating of linear objects that can be applied with good uniformity in the circumferential direction and oil particles can be applied to meet the target oil amount according to the traveling speed of the linear objects It is to provide an oil device.

  In order to solve the above problems, the present invention takes the following technical means.

The invention of claim 1 is a rotary atomizing type oiling device for applying atomized oil agent particles to a traveling linear object, and an oiling chamber in which the linear object travels in a horizontal direction. In the oil coating chamber, at least two staggered arrangements are made with respect to the linear object running line of the linear object, the oil agent is atomized by centrifugal force due to rotation, and the atomized oil agent particles are applied to the linear object. An oil atomizing rotary cup for application, and each oil atomizing rotary cup and the linear object traveling line are disposed in the oil coating chamber and scattered from the oil atomizing rotary cup. An oil amount regulating member that regulates the amount of oil agent particles directed toward the linear object, an oil agent tank that stores excess oil agent particles that are not applied to the linear object, and the oil agent tank Foreign matter removal fill that prevents foreign matter from entering When a heater for heating so as not to solidify the oil in the oil tank, the respectively provided for each oil atomizing rotating cup, the oil tank through the oil supply pipe to the oil atomizing rotary cup The oil agent supply pump for supplying the oil agent from the oil agent, the heater for heating so as not to solidify the oil agent in the oil agent supply pipe, and the motor drive circuit for the pump of each oil agent supply pump, respectively An oil agent supply amount control device that provides an oil agent supply amount command output that instructs an oil agent supply amount that is predetermined according to the traveling speed of the linear object so as to satisfy the oil coating amount. This is a rotary atomizing oiling device for objects.

  According to a second aspect of the present invention, in the rotary atomizing type oiling device for a linear object according to the first aspect, the oil agent supply amount control device linearizes an appropriate oil agent supply amount with respect to a traveling speed of the linear object in a steady traveling state. It is provided with an oil supply amount command output during steady running determined from the start of running of a solid object over a set running speed, and the oil drive amount command output during steady running when the linear motor is running at a rising acceleration. The oil supply amount is corrected to be increased by a predetermined amount, and the corrected oil supply amount command output during steady running is given as the oil supply amount command output. When the linear object travels at the set travel speed, the oil agent supply amount is output. As the amount command output, the oil supply amount command output at the steady travel at the set travel speed is given, and when the linear object is traveling at a reduced deceleration, the oil supply amount is decreased by a predetermined amount to the oil supply amount command output at the steady travel. It corrects that, as the oil supply amount command output, is characterized in that it is what gives the corrected steady-state running time oil supply amount command output.

  According to a third aspect of the present invention, in the rotary atomizing type oiling device for a linear object according to the second aspect, the steady running oil supply amount command output is determined over a set traveling speed from the start of traveling of the linear object. The proper oil supply amount has a proportional relationship with the travel speed of the linear object and has an output characteristic of changing into a broken line.

  In the rotary atomizing type oiling device for linear objects of the present invention, at least two rotating cups for oil atomization are arranged in a staggered manner with respect to the linear object traveling line in the oiling chamber. Therefore, the atomized oil agent particles from the oil atomizing rotating cups do not interfere with each other between the oil atomizing rotating cups, and the linear objects are changed from the opposite directions to the linear objects. The oil agent particles can be applied with good uniformity in the circumferential direction of the surface of the linear object.

  Also, an oil supply amount predetermined according to the travel speed of the linear object so as to satisfy the target oil amount to be supplied to the pump motor drive circuit for supplying the oil agent to the stirrer arranged oil atomizing rotary cups An oil agent supply amount control device for giving an oil agent supply amount command output to command the oil agent, and an oil agent scattered from the oil atomization rotary cup between each oil atomization rotary cup and the linear object traveling line. An oil coating amount regulating member that regulates the amount of oil agent particles toward the linear object among the particles is disposed. Therefore, for example, when the linear object travels at a low speed of about 2/10 to 1/10 of the set traveling speed during the falling deceleration traveling of the linear object, the oil agent supply amount control by the oil agent supply amount control device is performed. In addition, since the oil application amount regulating member is disposed, the oil application amount of the linear object can be prevented from deviating from the target oil application amount.

  Therefore, the rotary atomizing type oiling device of the linear object of the present invention applies the oil agent particles atomized by the rotating cup for oil atomization to the traveling linear object without using electrostatic force. The oil agent particles can be applied with good uniformity in the circumferential direction of the surface of the linear object, and the oil agent particles are applied to the linear object from the zero speed to the set running speed so as to satisfy the target oil amount. Can be made. Thus, unlike the rotary atomizing electrostatic type that uses electrostatic force, the oil agent that is supplied to each oil atomizing rotary cup but stored in the oil agent tank as a surplus without being applied to the linear object Can be reused, and the manufacturing cost can be reduced.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a configuration of a rotary atomizing type oiling device for linear objects according to an embodiment of the present invention, and FIG. 2 is a front view of the rotary atomizing type oiling device for linear objects shown in FIG. is there.

  The rotary atomizing type oiling device according to this embodiment is provided with a surface of a welding wire (typical outer diameter: 1.2 mmφ) that has been finished and drawn to the product diameter, and provides smooth rust resistance and wire feeding. It is used as an apparatus for applying lubricating oil for imparting feedability.

  1 and 2, reference numeral 300 has a transparent window 301 for monitoring on the side surface, and the welding wire introduced from the left side in FIG. 1 runs in the chamber in the horizontal direction and is applied to the right side. Chamber. The oil coating chamber 300 is provided on the gantry 310. In the oil coating chamber 300, two oil atomizing rotary cups 100, 200 are staggered with respect to a welding wire travel line 400 extending in the horizontal direction. The oil atomizing rotary cups 100 and 200 having the BELL shape are arranged by holding rotary shafts 101 and 201 extending in a direction perpendicular to the welding wire travel line 400 in parallel with each other, The oil agent (lubricating oil) continuously supplied to the inside of the cup is atomized by centrifugal force caused by rotation, and the atomized oil agent particles are applied to the welding wire.

  That is, of these two oil atomizing rotary cups 100, 200, the first oil atomizing rotary cup 100 is disposed above the welding wire travel line 400 by a predetermined distance D1. ing. Further, the second oil atomizing rotary cup 200 is separated from the first oil atomizing rotary cup 100 by a predetermined distance D2 in the downstream direction, and below the welding wire travel line 400 by a predetermined distance. D1 is located apart. For example, if the cup diameter of the oil atomizing rotary cups 100 and 200 is 80 mm, the appropriate value of the distance D1 is 70 to 140 mm, and the appropriate value of the distance D2 is 80 to 300 mm. The rotation speed of the oil atomizing rotary cups 100 and 200 is, for example, 13000 times / minute. The rotation directions of the oil atomizing rotating cups 100 and 200 are not particularly limited, and may be either clockwise or counterclockwise.

  And it scatters radially from the 1st oil atomization rotary cup 100 in the position close to the welding wire travel line 400 between the 1st oil atomization rotary cup 100 and the welding wire travel line 400. A first oil coating amount regulating member 110 that regulates the amount of the oil agent particles that travel toward the welding wire traveling on the welding wire travel line 400 by the opening 111a (see FIG. 4) is disposed. Yes. The atomized oil particles are scattered radially from the periphery of the oil atomizing rotary cup 100 in a plane perpendicular to the cup rotating shaft 101. In FIG. 1, the oil agent particles are schematically illustrated as passing through the opening 111a. It is shown schematically.

  Similarly, the second oil atomizing rotary cup 200 is radially scattered at a position close to the welding wire travel line 400 between the second oil atomizing rotary cup 200 and the welding wire travel line 400. A second oil amount regulating member 210 that regulates the amount of the oil agent particles that travel toward the welding wire traveling on the welding wire travel line 400 by the opening 211a (see FIG. 5) is disposed. ing. The atomized oil agent particles scatter radially in the plane perpendicular to the cup rotating shaft 201 from the periphery of the oil atomizing rotary cup 200, but in FIG. 1, the oil agent particles are schematically illustrated as passing through the opening 211a. It is shown schematically.

  These oil application amount regulating members 110 and 210 are, for example, a low speed (200 to 100 m / min) at which the welding wire is about 2/10 to 1/10 of the set traveling speed at the time of falling deceleration traveling of the welding wire. ) In order to prevent oil particles from being excessively adhered to the welding wire. In this case, since it is difficult to satisfy the target oil amount only by the reduction control of the oil supply amount to the oil atomizing rotary cups 100 and 200, the oil amount regulating members 110 and 210 are disposed.

  Further, at the lower position close to the first oil atomizing rotary cup 100, when the supply of the oil agent to the rotary cup 100 is stopped, it moves forward in the left direction in FIG. In order to prevent the remaining oil agent particles from adhering to the welding wire, a first zero-speed shutter 120 that is curved slightly convex downward to form a flat plate shape is disposed. The first zero-speed shutter 120 is advanced and retracted by a piston rod of a cylinder 121 attached to the side wall plate 302 of the oil coating chamber 300.

  Similarly, when the supply of the oil agent to the second oil atomizing rotary cup 200 is stopped at the lower position close to the second oil coating amount regulating member 210, it moves forward in the left direction in FIG. A second zero-speed shutter 220 having a flat plate shape is disposed to prevent the remaining oil particles from the rotating cup 200 from adhering to the welding wire. The second zero speed shutter 220 is advanced and retracted by a piston rod of a cylinder 221 attached to the side wall plate 302 of the oil coating chamber 300.

  In the lower part of the oil coating chamber 300, an oil agent tank 320 is provided in which surplus oil agent particles that have not been applied to the welding wire among oil agent particles from the oil atomizing rotary cups 100 and 200 are accommodated. . A foreign matter removing filter 321 for removing foreign matter is attached to the inlet of the oil agent tank 320.

  Further, the rotary atomizing type oiling device will be described with reference to FIG. As shown in FIG. 2, the first oil atomizing rotary cup 100 is fixed to the distal end portion of the rotating shaft 101 to which the driven pulley 102 is coupled to the proximal end side, and the driven pulley 102 is coupled to the first oil atomizing rotating cup 100. The rotating shaft 101 is rotatably supported by a bearing unit 103 fixed to the side wall plate 302 of the oil coating chamber 300.

  Similarly, the second oil atomizing rotating cup 200 is fixed to a rotating shaft 201 to which a driven pulley 202 is coupled, and the rotating shaft 201 to which the driven pulley 202 is coupled is connected to a side wall plate. A bearing unit 203 fixed to 302 is rotatably supported. Reference numeral 340 denotes a cup rotation driving motor. An endless belt (not shown) is wound around the driving pulley 350 and the driven pulleys 102 and 202 coupled to the rotating shaft of the cup rotation driving motor 340. By this belt pulley mechanism, an oil atomizing rotating cup is provided. 100 and 200 are rotated at a high speed at a constant speed.

Further, on the frame 310, a first oil supply pump 140 and a first pump for supplying the oil from the oil tank 320 to the first oil atomizing rotary cup 100 through the oil supply pipe 130 are provided. A motor 150 is provided (see FIG. 6 ). Similarly, a second oil agent supply pump 240 for supplying the oil agent from the oil agent tank 320 to the second oil atomizing rotary cup 200 through the oil agent supply conduit 230 and the second oil agent pump 240 on the gantry 310. Two pump motors 250 are provided. The cup rotation drive motor 340, the driven pulleys 102 and 202, the unillustrated endless belt, the pump motors 150 and 250, the oil supply pumps 140 and 240, the oil supply pump 140, 240, the oil supply pipes 130 and 230, and the like are provided in the drive chamber 330 adjacent to the oil coating chamber 300 with the side wall plate 302 of the oil coating chamber 300 as a partition.

  A heater (not shown) is wound around the oil tank 320 of the oil coating chamber 300, and the temperature of the heater is controlled based on a temperature measurement result by a tank temperature measuring device 322 disposed in the oil tank 320. It is like that. Thereby, for example, the oil agent in the oil agent tank 320 is prevented from solidifying while the oil application operation is not performed. In addition, a heater (not shown) is wound around the outer periphery of the drive chamber 330, and the heater is temperature-controlled based on the temperature measurement result by the drive chamber temperature measuring device 331 disposed in the drive chamber 330. Yes. Thus, for example, the oil agent is solidified in the oil agent supply pipes 130 and 230 while the oil application operation is not being performed, and the oil agent is supplied to the oil atomizing rotary cups 100 and 200 at the start of oil application. Is trying to eliminate the situation where it becomes impossible.

  FIG. 3 is a partial cross-sectional side view for explaining the oil atomizing rotary cup in FIGS. 1 and 2.

  As shown in FIG. 3, the oil atomizing rotary cups 100 and 200 are expanded from the proximal end side to the distal end side, and the distal end is opened (opening section circular), and the proximal end surface thereof. Are provided with three arc-shaped openings (see FIG. 1) for introducing air. Further, as shown in FIG. 3, the distal end portions of the oil supply pipes 130 and 230 are positioned close to the inner peripheral surface on the proximal end side of the oil atomizing rotary cups 100 and 200, An oil agent is continuously dripped and supplied to the rotary cups 100 and 200 for oil atomization from the part.

  4A and 4B are explanatory views of the first oil application amount regulating member in FIG. 1, in which FIG. 4A is a plan view and FIG. 4B is a cross-sectional view taken along line AA.

  As shown in FIG. 4, the first oil application amount regulating member 110 fixes the aperture plate 111, the aperture regulation plates 112 and 113, and the aperture regulation plates 112 and 113 positioned with respect to the aperture plate 111. The set screws 114 and 114 are configured. The opening plate 111 has an upwardly convex mountain shape, and has an opening 111a having a long rectangular shape in plan view extending in the direction of the welding wire travel line 400 at the center, and the opening restriction plates 112 and 113 are formed on the upper side. It has a convex mountain shape. The opening restricting plates 112 and 113 are stacked on the opening plate 111, and the opening restricting plates 112 and 113 are moved closer to and away from the center line CL of the opening 111a. When the length L of the opening 111 a is determined, the opening restriction plates 112 and 113 are fixed to the opening plate 111 by set screws 114 and 114. By the first oil application amount regulating member 110 having the opening 111a, the amount of the oil agent particles traveling toward the welding wire among the oil agent particles scattered radially from the first oil atomizing rotary cup 100 can be regulated. it can.

  In this case, since the first oil application amount regulating member 110 is positioned above the welding wire that travels, the shape of the opening plate 111 and the opening restriction plates 112 and 113 is an upward convex mountain shape. Thereby, the reaching oil agent particles that could not pass through the opening 111a are guided to the lowermost ends of the opening plate 111 and the opening restricting plates 112 and 113, and from the lowermost end that is displaced from directly above the welding wire travel line 400. By dripping downward, it is possible to prevent the oil from being applied to the welding wire.

  FIGS. 5A and 5B are explanatory views of the second oil application amount regulating member in FIG. 1, in which FIG. 5A is a plan view and FIG.

  As shown in FIG. 5, the second oil application amount regulating member 210 fixes the aperture plate 211, the aperture regulation plates 212 and 213, and the aperture regulation plates 212 and 213 positioned with respect to the aperture plate 211. The set screws 214 and 214 are configured. The opening plate 211 has a long flat plate shape, and has an opening 211a having a long rectangular shape in plan view extending in the direction of the welding wire travel line 400 at the center, and the opening restriction plates 212 and 213 have a flat plate shape. There is no. The opening restricting plates 212 and 213 are overlapped on the opening plate 211, and the opening restricting plates 212 and 213 are moved toward and away from each other with respect to the center line CL of the opening 211a. When the length L of the opening 211 a is determined, the opening restricting plates 212 and 213 are fixed to the opening plate 211 by set screws 214 and 214. By the second oil application amount regulating member 210 having the opening 211a, the amount of the oil agent particles traveling toward the welding wire among the oil agent particles scattered radially from the second oil atomizing rotary cup 200 can be regulated. it can. The appropriate value of the opening length L of the oil coating amount regulating members 110 and 210 is 60 to 120 mm.

  FIG. 6 is a block diagram for explaining a control system of the rotary atomizing type oiling device for linear objects shown in FIG.

  In FIG. 6, reference numeral 150 denotes a first oil agent supply pump 140 for supplying the oil agent from the oil agent tank 320 to the first oil atomizing rotary cup 100 through the oil agent supply conduit 130. A pump motor 160 is a pump motor drive circuit (driver) for the first pump motor 150. Reference numeral 250 denotes a second pump for driving a second oil agent supply pump 240 for supplying the oil agent from the oil agent tank 320 to the second oil atomizing rotary cup 200 through the oil agent supply conduit 230. A motor 260 is a pump motor drive circuit (driver) of the second pump motor 250. In addition, 360 supplies an oil supply amount command output for instructing an oil supply amount determined in advance according to the traveling speed of the welding wire to the pump motor drive circuits 160 and 260 so as to satisfy the target oil amount. This is an oil supply amount control device.

  FIG. 7 is a view for explaining the oil supply amount command output during steady running according to the present invention, and the relationship between the welding wire running speed and the proper oil supply amount to the oil atomizing rotary cup in the steady running state. It is a figure which shows an example.

  The oil supply amount control device 360 described above receives as inputs a welding wire travel start command signal S1, a welding wire travel stop command signal S2, a welding wire travel speed detection signal S3, and a welding wire set travel speed Sr. As an output, the oil supply amount command output for instructing the oil supply amount determined in accordance with the traveling speed of the welding wire in advance so as to satisfy the target oil supply amount is given to the pump motor drive circuits 160 and 260, respectively. Is. The oil supply amount command output will be described.

  The distances D1 and D2 related to the oil atomizing rotary cups 100 and 200, the rotational speed of the oil atomizing rotary cups 100 and 200, the opening length L of the oil amount regulating members 110 and 210, etc. are set to representative appropriate values. When the welding wire is traveling in a steady state (non-acceleration / deceleration traveling), the appropriate amount of oil supply is set every 100 m / min from the welding wire traveling speed from 100 m / min to the set traveling speed Sr, for example, 900 m / min. Then, a relationship having characteristics as shown in FIG. 7 was obtained. The proper oil supply amount is an oil supply amount to the oil atomizing rotary cups 100 and 200 when the oil amount of the welding wire satisfies the target oil amount having a certain range at the traveling speed.

  In this case, as shown in FIG. 7, the relationship between the wire travel speed in the steady travel state and the appropriate oil supply amount to the oil atomizing rotary cup is that the proper oil supply amount is the set travel speed from the start of welding wire travel. It has a proportional relationship with the traveling speed of the welding wire up to Sr (900 m / min in the case of FIG. 7) and changes in a polygonal line shape (changes in three stages in the case of FIG. 7). Yes.

  This is because when the oil agent particles atomized by the oil atomizing rotating cups 100 and 200 are applied to the traveling welding wire without using electrostatic force, the welding wire is different depending on the traveling speed. It is presumed that the amount of physical energy required for the oil particles to be applied to the welding wire is changed due to the change in the air flow formed around.

  In the oil supply amount control device 360, a steady running oil supply amount command output Eout that directly reflects the relationship between the welding wire travel speed and the appropriate oil supply amount shown in FIG. 7 is stored as a function or a numerical data table. ing. When the oil supply amount control device 360 receives the welding wire travel speed detection signal S3 as an input, the command output corresponding to the appropriate oil supply amount for the travel speed in FIG. 7 is obtained from the steady travel oil supply amount command output Eout. Can be requested. From the start of the welding wire travel to a speed of 100 m / min, a command output corresponding to the appropriate amount of oil supplied at the travel speed of 100 m / min is given to the pump motor drive circuits 160 and 260.

  Next, the correction of the steady running oil supply amount command output Eout will be described. According to the tests by the inventors, if the oil supply amount command output Eout during steady running is used as it is as the oil supply amount command output given to the pump motor drive circuits 160 and 260, the following problems are likely to occur. I understood. That is, at the time of acceleration acceleration until the welding wire reaches the set traveling speed Sr from the zero speed, the amount of oil applied to the welding wire falls below the target oil amount, while the welding wire reaches the zero speed from the set traveling speed Sr. It was found that during the falling deceleration traveling, the oil amount of the welding wire is just below the upper limit of the target oil amount or exceeds the target oil amount.

  This is because the oil supply amount command output (signal) is given to the pump motor drive circuits 160 and 260 and then the tip portions of the oil supply pipes 130 and 230 with respect to the oil atomizing rotary cups 100 and 200 are provided. From this, it is considered that there is a time delay until the commanded oil supply amount actually comes out. It is considered that this time delay is influenced by the responsiveness of the oil supply pumps 140 and 240 and the pump motors 150 and 250, the filling state of the oil in the oil supply pipes 130 and 230, and the like.

  Therefore, the oil supply amount control device 360 corrects the oil supply amount by increasing the oil supply amount by a predetermined amount to the oil supply amount command output Eout during steady running during the rising acceleration traveling of the welding wire, and this correction is performed as the oil supply amount command output. The steady running oil supply amount command output Eout ′ is supplied to the pump motor drive circuits 160 and 260. Further, when the welding wire travels at the set travel speed, the oil supply amount command output Eout during steady travel at the set travel speed Er is given to the pump motor drive circuits 160 and 260 as the oil supply amount command output. Yes. Further, during the falling deceleration traveling of the welding wire, the oil supply amount command output Eout during steady running is corrected to reduce the oil supply amount by a predetermined amount, and this corrected oil supply amount during steady running is output as the oil supply amount command output. The command output Eout "is given.

  In this case, the oil supply amount control device 360 compares the welding wire set travel speed Sr with the welding wire travel speed detection signal S3, and when Sr> S3, determines that it is during the rising acceleration travel, and When Sr <S3, it is determined that the vehicle is traveling at a reduced deceleration, and when Sr = S3, it is determined that the vehicle is in a steady traveling state and is traveling at the set traveling speed Sr.

  FIG. 8 is a view for explaining an example of a test result of the oil supply amount control by the oil supply amount control device in FIG.

  First, at the time of acceleration acceleration running (time: 20 seconds) of the welding wire (wire outer diameter: 1.2 mmφ) from zero speed to 1000 m / min, the oil agent is supplied to the oil supply amount command output Eout during steady running. Correction was performed to increase the amount by 1.0 mL / min, and this corrected normal running oil supply amount command output Eout ′ was given to the pump motor drive circuits 160 and 260 as the oil supply amount command output. Next, when the welding wire travels at a set travel speed Sr of 1000 m / min (time: 120 seconds), an oil supply amount command output Eout during steady travel at the set travel speed Sr is used as the oil supply amount command output. This was applied to the pump motor drive circuits 160 and 260. Then, during the falling deceleration traveling (time: 20 seconds) of the welding wire from 1000 m / min (set travel speed Sr) to zero speed, the oil supply amount is set to the oil supply amount command output Eout during steady travel. Correction was made to decrease by 1.2 mL / min, and this corrected normal running oil supply amount command output Eout ″ was given as the oil supply amount command output.

  As a result, as shown in FIG. 8, the amount of oil applied to the welding wire is increased in all speed ranges during the rising acceleration traveling, steady traveling (constant speed traveling) and falling deceleration traveling of the welding wire. Oil agent particles could be applied to meet the target oil amount.

  As described above, the rotary atomizing type oil coating apparatus according to the present embodiment includes the two oil atomizing rotary cups 100 and 200 for the welding wire travel line 400 extending in the horizontal direction in the oil coating chamber 300. Staggered arrangement. Therefore, the atomized oil agent particles from the oil atomizing rotary cups 100 and 200 do not interfere with each other between the oil atomizing rotary cups 100 and 200 and are opposite to the welding wire. It is conveyed from the direction toward the welding wire, and the oil agent particles can be applied with good uniformity in the circumferential direction of the surface of the welding wire.

  Further, the pump motor drive circuits 160 and 260 for supplying the oil to the stirrably arranged oil atomizing rotary cups 100 and 200 are preliminarily set according to the traveling speed of the welding wire so as to satisfy the target oil amount. An oil supply amount control device 360 that provides an oil supply amount command output for instructing a predetermined oil supply amount is provided, and between each of the oil atomizing rotary cups 100 and 200 and the welding wire travel line 400, respectively. Of the oil agent particles scattered from the oil atomizing rotating cup, oil application amount regulating members 110 and 210 for restricting the amount of the oil agent particles directed to the welding wire are arranged. Therefore, for example, even when the welding wire travels at a low speed of about 2/10 to 1/10 of the set traveling speed Sr during the falling deceleration traveling of the welding wire, the oil agent supply amount control by the oil agent supply amount control device 360 is performed. In addition, since the oil application amount regulating members 110 and 210 are arranged, the oil application amount of the welding wire can be prevented from deviating from the target oil application amount.

  Therefore, the rotary atomizing type oiling device of the present embodiment is for welding that travels oil agent particles atomized by the stirrably arranged oil atomizing rotating cups 100, 200 without using electrostatic force. When applying to the wire, the oil agent particles can be applied with good uniformity in the circumferential direction of the welding wire surface, and the oil agent should be applied to the welding wire from the zero speed to the set running speed so as to satisfy the target oil amount. Particles can be applied. Thus, unlike the rotary atomizing electrostatic type that uses electrostatic force, the oil atomizing rotary cups 100 and 200 are supplied to the oil agent tank 320 as a surplus without being applied to the welding wire. The contained oil agent can be reused, and the manufacturing cost can be reduced.

  Further, unlike the rotary atomizing electrostatic type using the electrostatic force, the output voltage of the rotary atomizing type oiling apparatus of the present embodiment varies depending on the temperature, humidity, and the degree of electrode cleaning. Compared with the rotary atomizing electrostatic type that uses electrostatic force, the apparatus operating rate can be improved without using a high-voltage generator that requires labor for adjustment.

It is a side view which shows the structure of the rotary atomization type oil coating apparatus of the linear thing by one Embodiment of this invention. It is a front view of the rotary atomization type oiling apparatus of the linear thing shown in FIG. It is a partial cross section side view for demonstrating the rotary cup for oil atomization in FIG. 1, FIG. It is explanatory drawing of the 1st oil application amount regulation member in FIG. 1, Comprising: The (a) is a top view, The (b) is AA sectional drawing. It is explanatory drawing of the 2nd oil application quantity regulation member in FIG. 1, Comprising: The (a) is a top view, The (b) is BB sectional drawing of (a). It is a block diagram for demonstrating the control system of the rotary atomization type oil coating apparatus of the linear thing shown in FIG. It is for demonstrating the oil supply amount instruction | command output at the time of steady driving | running | working which concerns on this invention, Comprising: An example of the relationship between the wire travel speed for welding in the steady driving | running state, and the appropriate oil supply amount to the rotary cup for oil atomization FIG. It is a figure for demonstrating an example of the test result of the oil agent supply amount control by the oil agent supply amount control apparatus in FIG. It is a figure which shows the structure of the conventional oiling apparatus of the welding wire, Comprising: The (a) is a front view, The (b) is a side view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... 1st rotation cup for oil atomization 101 ... Rotating shaft 102 ... Driven pulley 103 ... Bearing unit 110 ... 1st oil application amount control member 111 ... Opening plate 111a ... Opening 112, 113 ... Opening control plate 114 ... Set screw 120 ... First zero-speed shutter 121 ... Cylinder 130 ... Oil agent supply conduit 140 ... First oil agent supply pump 150 ... First pump motor 160 ... Pump motor drive circuit 200 ... Second Rotating cup 201 for oil atomization 201 ... Rotating shaft 202 ... Driven pulley 203 ... Bearing unit 210 ... Second oil application amount regulating member 211 ... Opening plate 211a ... Opening 212, 213 ... Opening regulating plate 214 ... Set screw 220 ... Second zero-speed shutter 221 ... Cylinder 230 ... Oil agent supply conduit 240 ... Second oil agent supply pump 250 ... Second Pump motor 260 ... Pump motor drive circuit 300 ... Oil chamber 301 ... Transparent window 302 ... Side wall plate 310 ... Fixing frame 320 ... Oil agent tank 321 ... Foreign substance removing filter 322 ... Tank temperature measuring device 330 ... Drive chamber 331 ... Drive chamber Temperature measuring device 340 ... Cup rotation driving motor 350 ... Drive side pulley 360 ... Oil supply amount control device 400 ... Welding wire travel line

Claims (3)

A rotary atomizing type oiling device for applying atomized oil agent particles to a traveling linear object, wherein an oiling chamber in which the linear object travels in a horizontal direction, and in the oiling chamber Oil atomization for arranging at least two zigzag with respect to the linear object traveling line of the linear object, atomizing the oil agent by centrifugal force by rotation, and applying the atomized oil agent particles to the linear object Among the oil particles that are disposed between the rotary cup for oil and the rotary cup for oil atomization and the linear object traveling line in the oil coating chamber, respectively, and scattered from the rotary cup for oil atomization. An oil amount regulating member that regulates the amount of oil agent particles directed to the linear object, an oil agent tank that stores excess oil agent particles that have not been applied to the linear object, and prevents foreign matter from entering the oil agent tank Filter for removing foreign matter and the oil agent tank Supplying a heater for oil heating so as not to solidify the inner, the respectively provided for each oil atomizing rotating cup, the oil from the oil tank through the oil supply pipe to the oil atomizing rotary cup Oil supply pumps for heating, heaters for heating so as not to solidify the oil agent in the oil supply pipes, and motor drive circuits for pumps of the oil agent supply pumps each satisfy a target oil amount. An oil agent supply amount control device for providing an oil agent supply amount command output for instructing an oil agent supply amount determined in advance according to the traveling speed of the linear object, as described above, Type oiling equipment.   The oil supply amount control device includes a normal travel oil supply amount command output that determines an appropriate oil supply amount relative to a travel speed of the linear object in a steady travel state over a set travel speed from a travel start of the linear object. When the linear object rises and accelerates, the motor drive circuit performs a correction to increase the oil supply amount by a predetermined amount to the oil supply amount command output during steady running, and the corrected steady running as the oil supply amount command output. When the linear material travels at the set travel speed, the oil supply amount command output during the steady travel at the set travel speed is given as the oil supply amount command output. At the time of falling traveling of an object, the oil supply amount command output during steady driving is corrected to decrease the oil supply amount by a predetermined amount, and the corrected oil supply amount command output is used as the corrected normal driving time output. Agents rotary atomization coating oil according to claim 1 linear product, wherein a is intended to provide a supply amount command output.   In the steady running oil supply amount command output, the appropriate oil supply amount determined over the set running speed from the start of running of the linear object has a proportional relationship with the running speed of the linear object, and changes into a broken line. The rotary atomizing type oiling device for linear objects according to claim 2, characterized in that the output has a characteristic of performing.

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