JP2014216395A - Coil manufacturing device and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a bobbin to be carried in and a coil to be carried out without stopping blowing hot air and to reduce a time for manufacturing the coil.SOLUTION: A coil manufacturing device 10 includes: a winding machine 20 which has a winding shaft 24 configured in the way it can fit a bobbin 14 and winds a thermal fusion wire 13 around the bobbin 14 fitted to the winding shaft 24; a hot air generator 81 for blowing hot air off to the coil 11 composed of the wire 13 wound around the bobbin 14; a hot air shielding wall 83 which can shield the hot air heading for the coil 11 when a hot air outlet 81a of the hot air generator 81 faces the wall; outlet moving means 84 for moving the hot air outlet 81a between a wall opposite position facing the hot air shielding wall 83 and a coil opposite position facing the coil 11; and bobbin conveyance means 30 which conveys the bobbin 14 in the winding machine 20 and conveys the coil 11 out of the winding machine 20 together with the bobbin 14.

Description

  The present invention relates to a coil manufacturing apparatus for winding a heat-fusible wire while heating it on a bobbin transported by a transport apparatus, and a method for manufacturing the same.

  Conventionally, as a speaker used in a small device such as a mobile phone, a small speaker having an oval or rectangular shape is preferably used. In such an oval or rectangular speaker, a coil having a cross section such as a rectangle, oval, or ellipse is used instead of a circular coil having an annular cross section.

  As a manufacturing method of such a coil, a wire rod is wound around a plastically deformable bobbin made of paper or the like in a winding machine to obtain a circular coil, and then the coil is removed from the winding machine and the circular coil is removed. It has been proposed to transform the coil into a coil having a different cross section from the annular cross section together with the bobbin (see, for example, Patent Document 1).

  Further, in the manufacture of such a coil, a heat-fusible wire having a thermally activated insulating film is used, and the wire is wound while being heated at the melting temperature of the insulating film, and then cooled and wound. It is also practiced to prevent the coil of the wound wire from being deformed by fusing the formed wire (see, for example, Patent Document 2). The heating of the wire is exemplified by blowing hot air from the hot air outlet of the hot air generator to the coil.

  In recent years, the manufacture of such a relatively small coil has tended to be performed in automation using a machine without assigning a specialized worker, and the bobbin can be carried into a winding machine or the winding thereof. Carrying out the coil obtained by the wire machine from the winding machine together with the bobbin is automatically performed by the machine.

JP-A-57-101497 JP 2003-86446 A (paragraph number “0020”)

  However, a plastically deformable bobbin made of paper or the like is relatively lightweight, and if a wire is used while a hot-sealable wire is used as a wire and blowing hot air, the bobbin conveyed by the hot air is It is blown off and the bobbin cannot be mounted on the winding machine accurately, and even if it is in the coil obtained by the winding machine, it is difficult to carry it out of the winding machine by the hot air. Cause a defect.

  In order to eliminate this point, it is conceivable to stop blowing hot air from the hot air outlet of the hot air generator when the bobbin is conveyed. However, the blowing of hot air is generally performed by rotating a fan with a motor, and even if the motor is stopped, the fan continues to rotate for a predetermined time due to inertia, so that the blowing of hot air is completely stopped. Takes time. For this reason, if the bobbin cannot be carried in or the coil cannot be carried out until the hot air blowing is completely stopped, there arises a problem that the manufacturing time of the coil is extended.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a coil manufacturing apparatus and a manufacturing method thereof that enable the bobbin to be carried in and the coil to be carried out without stopping the blowing of hot air, thereby shortening the coil manufacturing time.

  The coil manufacturing apparatus of the present invention has a winding shaft configured to be capable of mounting a bobbin, a winding machine that winds a heat-fusible wire around the bobbin mounted on the winding shaft, and the winding device wound around the bobbin A hot air generator that blows hot air onto a coil made of wire, a hot air blocking wall configured to block the hot air toward the coil when the hot air blowing port of the hot air generator faces, and a wall that faces the hot air blowing wall to the hot air blocking wall A blowing port moving means for moving between the facing position and the coil facing position facing the coil, and a bobbin conveying means for carrying the bobbin into the winding machine and carrying the coil out of the winding machine together with the bobbin are provided.

  This coil manufacturing apparatus includes a winding machine that has a winding shaft that can be mounted with a bobbin and winds a heat-fusible wire around the bobbin mounted on the winding shaft, and a wire wound around the bobbin. A hot air generator that blows hot air on the coil, a hot air blocking wall configured to block the hot air toward the coil when facing the hot air outlet of the hot air generator, and a first position that opposes the hot air blocking wall to the outlet Wall moving means for moving between a second position separated from the blowout port and bobbin conveying means for carrying the bobbin up to the winding machine and carrying the coil out of the winding machine together with the bobbin may be provided. .

  The coil manufacturing method of the present invention is an improvement of the method of winding a heat-fusible wire rod while blowing hot air on a bobbin carried into a winding machine with a hot air generator to obtain the coil, and then removing the coil from the winding machine. It is.

  The characteristic point is that the hot air toward the bobbin and the coil is blocked by making the hot air blocking wall face the hot air outlet of the hot air generator when the bobbin is loaded and the coil is unloaded.

  In the coil manufacturing apparatus and the manufacturing method thereof according to the present invention, when the bobbin is carried in and out of the coil, the hot air generator outlet or hot air blocking wall is moved, and the hot air outlet is opposed to the hot air outlet. And the hot air which goes to a coil is intercepted. Then, even if hot air is blown out from the hot air outlet of the hot air generator, the bobbin and coil conveyed by the hot air are not blown out, and the bobbin can be carried in and the coil can be carried out.

  Then, the movement of the blowout opening and the hot air blocking wall can be quickly performed as compared with the case where the rotation of the fan of the hot air generator is stopped, so that the bobbin loading and the coil unloading are not delayed. Therefore, in the present invention, the coil manufacturing time can be shortened as compared with the prior art without stopping the blowing of hot air.

It is a top view which shows the manufacturing apparatus of the coil in this invention embodiment in which the bobbin is carried in and the coil is carried out. It is a top view corresponding to Drawing 1 by which winding is performed in the manufacture device of the coil. It is a front view of the manufacturing apparatus in which the winding is performed. FIG. 3 is an enlarged cross-sectional view taken along the line CC in FIG. 1. It is an expansion perspective view which shows the state by which the circular coil was wound by the winding machine. It is a BB line expanded sectional view of Drawing 1. It is an AA line expanded sectional view of Drawing 1 showing the coil grasping mechanism of the conveyance means. It is the DD sectional view taken on the line of FIG. 7 which shows the state which hold | gripped the circular coil with the holding piece of the coil holding mechanism. FIG. 11 is a cross-sectional view taken along line FF in FIG. 10 showing a state where a circular bobbin is gripped by a grip piece of the bobbin gripping mechanism. FIG. 2 is an enlarged sectional view taken along line EE of FIG. 1 showing a bobbin gripping mechanism of the conveying means.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings.

  1 to 3 show a coil manufacturing apparatus 10 according to the present invention. In each figure, three axes X, Y, and Z orthogonal to each other are set, the X axis extends in a substantially horizontal front-rear direction, the Y axis extends in a substantially horizontal lateral direction, and the Z axis extends in a vertical direction. The configuration will be described.

  The coil manufacturing apparatus 10 includes a winding machine 20 that obtains a coil 11 by winding a heat-fusible wire 13 around a bobbin 14. Here, the heat-fusible wire 13 is one in which the periphery of a conductor is covered with a heat-activated insulating film, and the film is melted by heat and can be fused to the adjacent wire 13. .

  As shown in FIG. 4, the winding machine 20 in this embodiment obtains a circular coil 11 in which lead wires 13a and 13b (FIG. 5) are drawn from predetermined positions by winding a wire 13 in a circular shape. The winding motor 21 provided on the base 10a, the rotating column 22 rotated about the Z axis by the winding motor 21, and the disk 23 provided horizontally at the upper end of the rotating column 22 are provided. And a winding shaft 24 which is erected on the center of the disk 23 coaxially with the rotating column 22 and rotates together with the rotating column 22.

  As shown in FIG. 5, the circular coil 11 in this embodiment is formed by winding a wire 13 around a paper bobbin 14, and the winding shaft 24 is formed in a circular cross section into which the paper bobbin 14 can be fitted. The winding machine 20 has a small diameter portion 24a at the upper portion and a large diameter portion 24b that is coaxially continuous with the lower portion of the small diameter portion 24a. It is configured to be rollable.

  Returning to FIG. 1, the winding machine 20 includes a nozzle 26 that feeds the wire 13 from the tip, and a moving mechanism 27 that moves the nozzle 26 is provided. The moving mechanism 27 in this embodiment is a combination of triaxial drive units 27a, 27b, and 27c, and includes a front / rear direction drive unit 27a, a left / right direction drive unit 27b, and a vertical direction drive unit 27c. The drive units 27a, 27b, and 27c are substantially the same drive mechanism along the drive directions X, Y, and Z. The left-right direction drive part 27b is fixed to the base 10a along the Y-axis direction, and an up-down direction drive part 27c extending in the Z-axis direction is arranged to be movable in the left-right direction with respect to the left-right direction drive part 27b. The vertical drive unit 27c is provided with a longitudinal drive unit 27a extending in the X-axis direction so as to be movable in the vertical direction with respect to the vertical drive unit 27c.

  And the nozzle 26 is provided in the front-back direction drive part 27a so that a movement to the front-back direction drive part 27a is possible in the front-back direction. The nozzle moving mechanism 27 is configured to be able to move the nozzle 26 in an arbitrary direction of the three axial directions by a combination of the driving units 27a, 27b, and 27c.

  As shown in FIG. 4, the winding motor 21 is fed from the tip of the nozzle 26 to the paper bobbin 14 (FIG. 5) fitted in the small diameter portion 24 a by rotating the winding shaft 24 together with the rotating column 22. The wire 13 is configured to be wound, and the nozzle moving mechanism 27 (FIG. 1) is configured to reciprocate the nozzle 26 in the Z-axis direction and wind the wire 13 on the bobbin when the wire is wound.

  As shown in FIG. 5, at the upper edge of the large diameter portion 24b of the winding shaft 24, a concave groove 24c into which the winding start and end of the wire 13 wound around the paper bobbin 14 enters is tangential to the small diameter portion 24a. Formed to stretch.

  As shown in FIG. 3, around the disk 23 positioned on the extension of the concave groove 24c, a gripping tool 28 for gripping the wire 13 at the beginning of winding as one lead wire 13a, and the other lead wire 13b A gripping tool 29 for gripping the winding end wire rod 13 is provided. By means of the concave groove 24c and the gripping tool 29, the winding machine 20 winds the wire 13 around the cylindrical paper bobbin 14 in a circle, and the circular coil 11 from which the lead wires 13a and 13b are drawn out from a predetermined position. Configured to get.

  As shown in FIGS. 1 to 3, on both sides of the winding machine 20 in the X-axis direction, a bobbin parts feeder 16 that feeds the bobbin 14 supplied to the winding machine 20 in an aligned manner, and the winding machine 20. An unloading belt conveyor 17 for discharging the obtained coil 11 together with the bobbin 14 is provided.

  Then, the coil manufacturing apparatus 10 conveys the bobbin 14 aligned and supplied by the bobbin parts feeder 16 to the winding machine 20 and carries out the circular coil 11 obtained by the winding machine 20 from the winding machine 20. Then, a conveying means 30 for conveying the belt conveyor 17 is provided.

  As shown in FIGS. 1 to 3 and 6, the conveying means 30 in this embodiment extends in the X-axis direction in a state of being lifted from the base 10 a via a column 31 a in parallel with the base 10 a. The conveyance rail 31 provided, the conveyance rotation shaft 32 arranged in parallel to the conveyance rail 31 and having a male screw on the surface, and the conveyance rotation shaft 32 provided at the end of the conveyance rail 31 And a conveyance motor 33 that rotates.

  The conveyance rail 31 is provided to be shifted in the Y-axis direction with respect to the winding machine 20, and connects the bobbin parts feeder 16 and the carry-out belt conveyor 17 provided on both sides of the winding machine 20 in the X-axis direction. It is formed with sufficient length.

  Further, the transport means 30 includes a bobbin gripping mechanism 40 shown in FIGS. 9 and 10 for transporting the bobbin 14 and a coil gripping mechanism 60 shown in FIGS. 6 to 8 for transporting the coil 11. Both have the same structure.

  As shown in FIGS. 6 to 10, these gripping mechanisms 40 and 60 are provided with transfer platforms 43 and 63 that are screwed onto the transfer rotary shaft 32 and are movable along the transfer rail 31. . Supports 46 and 66 are attached to the transfer platforms 43 and 63, respectively.

  These support bases 46, 66 are composed of horizontal upper flanges 46a, 66a, lower flanges 46b, 66b provided in parallel with the upper flanges 46a, 66a below the upper flanges 46a, 66a, and upper flanges 46a, One end edge of 66a and one end edge of the lower flanges 46b, 66b are connected to each other, and connecting portions 46c, 66c attached to the transfer platforms 43, 63 are provided.

  A pair of rods 47, 47, 67, 67 extending in the Z-axis direction are provided on the upper flanges 46a, 66a and the lower flanges 46b, 66b of the support bases 46, 66 so as to be movable up and down at intervals in the X-axis direction.

  Operating members 48 and 68 are attached to rods 47, 47, 67 and 67 between the upper flanges 46a and 66a and the lower flanges 46b and 66b, respectively, and male operating screws 49 and 69 which are screwed into the operating members 48 and 68, respectively. Is provided between the pair of rods 47, 47, 67, 67 in parallel with the rods.

  The upper flanges 46a and 66a are provided with operating motors 51 and 71 for rotating the operating male screws 49 and 69, respectively. When the operating motors 51 and 71 are driven to rotate the operating male screws 49 and 69, the operating members are operated. 48 and 68 are configured to move up and down together with the rods 47, 47, 67 and 67.

  At the lower ends of the pair of rods 47, 47, 67, 67, conveying air cylinders 52, 72 having a pair of front and rear movable members 52a, 72a movable in the X-axis direction are provided.

  Each of the pair of front and rear movable members 52a and 72a is further provided with slider members 53 and 73 having sliders 53a and 73a movable in the X-axis direction, and the bobbin 14 or the circular coil 11 is attached to the sliders 53a and 73a. The grip pieces 54 and 74 gripped from the periphery are provided side by side in the X-axis direction.

  Between the front and rear movable members 52a, 72a and the sliders 53a, 73a, gripping springs 56, 76 are provided to urge the pair of gripping pieces 54, 74 together with the sliders 53a, 73a. The gripping springs 56 and 76 reduce the distance between the pair of gripping pieces 54 and 74 together with the pair of front and rear movable members 52a and 72a, and the pair of gripping pieces 54 and gripping the bobbin 14 or the circular coil 11 from the outer periphery. 74 is allowed to be expanded against its biasing force.

  As shown in FIGS. 8 and 9, both of the pair of gripping pieces 54, 74 have air holes 57 whose one ends open to arcuate contact surfaces 54 a, 74 a that contact the outer peripheral surface of the bobbin 14 or the circular coil 11. , 77 are formed.

  The air holes 57 and 77 are formed in the holding pieces 54 and 74 in the X-axis direction so as to be aligned in the Y-axis direction, and the other ends of the three air holes 57 and 77 are formed in the Y-axis direction. Extending female screw holes 58 and 78 are formed so as to allow the three air holes 57 and 77 to communicate with each other.

  Air couplings 59 and 79 are screwed into the female screw holes 58 and 78, and one end of an air tube communicating with the plurality of air holes 57 and 77 is connected to the air couplings 59 and 79. The other end of the air tube is connected to an air suction device (not shown) that sucks air from one end of the plurality of air holes 57 and 77 through the air tube.

  And this air suction device is comprised so that the bobbin 14 or the circular coil 11 may be adsorb | sucked to the holding pieces 54 and 74 with the air suck | inhaled from the end of these several air holes 57 and 77. FIG.

  Here, as shown in FIG. 1, the pair of gripping pieces 74 and 74 in the coil gripping mechanism 60, the winding shaft 24 of the winding machine 20, the pair of gripping pieces 54 and 54 in the bobbin gripping mechanism 40, and the bobbin The bobbin payout end of the parts feeder 16 is provided so as to be on a straight line G extending in the X-axis direction.

  The pair of gripping pieces 74 and 74 in the bobbin gripping mechanism 60 shown in FIGS. 7 and 8 grips the circular coil 11 obtained in the winding machine 20 from the outer periphery, and face each other so as to face the circular coil 11. The contact surface 74 a that contacts the outer periphery of the circular coil 11 is formed in an arc shape corresponding to the outer diameter of the circular coil 11.

  And if the air cylinder 72 for conveyance expands the mutual space | interval of a pair of front-and-back movable members 72a and 72a, a pair of holding pieces 74 and 74 will also expand a mutual space | interval with the pair of front-and-back movable members 72a and 72a, As shown in FIG. 8, when the distance between the pair of front and rear movable members 72a and 72a is reduced, the pair of gripping pieces 74 and 74 are also reduced together with the pair of front and rear movable members 72a and 72a, and the circular coil 11 exists between them. When it does, it is comprised so that the circular coil 11 may be hold | gripped from outer periphery.

  On the other hand, the bobbin gripping mechanism 40 shown in FIGS. 9 and 10 carries the bobbin 14 aligned and supplied by the parts feeder 16 into the winding machine 20, and a pair of gripping pieces 54, 54 in the bobbin gripping mechanism 40. Is to grip the bobbin 14 from the outer periphery. The pair of gripping pieces 54 and 54 that grip the bobbin 14 from the outer periphery have contact surfaces 54 a that face each other and contact the outer periphery of the bobbin 14 in an arc shape corresponding to the outer diameter of the bobbin 14.

  As shown in FIG. 9, when the distance between the pair of front and rear movable members 52a and 52a is narrowed, the pair of gripping pieces 54 and 54 are also narrowed together with the pair of front and rear movable members 52a and 52a. When the bobbin 14 aligned and supplied by the parts feeder 16 is present, the bobbin 14 is configured to be gripped from the outer periphery.

  Returning to FIG. 1, the distance L between the winding machine 20 and the bobbin parts feeder 16 provided apart in the X-axis direction and the X-axis direction on the opposite side of the winding machine 20 are provided apart. The distance L between the carried-out belt conveyor 17 and its winding machine 20 is configured to be equal.

  The distance L between the bobbin gripping mechanism 40 that transports the bobbin 14 and the coil gripping mechanism 60 that transports the coil 11 is also configured to be the same as those distances.

  The gripping mechanisms 40 and 60 are used for the bobbin parts feeder 16 and the unloading unit without changing the distance L to each other depending on the range of the transport rotary shaft 32 provided over the entire length of the transport rail 31. The belt conveyor 17 is configured to be movable within a range where it is connected.

  For this reason, when the bobbin gripping mechanism 40 tries to grip the bobbin 14 that is aligned and supplied facing the parts feeder 16 for the bobbin, the coil gripping mechanism 60 faces the winding machine 20 and the wound coil there. 11 can be gripped. On the other hand, when the gripping mechanisms 40, 60 move in the X-axis direction and the bobbin gripping mechanism 40 is opposed to the winding machine 20 and tries to mount the bobbin 14 on the winding shaft 24, the coil gripping mechanism 60 Opposing to the conveyor 17, the gripped coil 11 can be dropped onto the conveyor 17.

  As shown in FIGS. 1 to 3, a hot air generator 81 is provided on a base 10 a between the winding machine 20 and the belt conveyor 17, and an air nozzle 81 a that blows hot air is provided in the hot air generator 81. The hot air generator 81 is provided on the base 10 so as to be movable in the Y-axis direction via two rails 82 and 82 extending in the Y-axis direction with a predetermined interval in the X-axis direction.

  A hot air blocking wall 83 is erected on the base 10a at a position separated from the winding machine 20 in the Y-axis direction. When the hot air blocking wall 83 is opposed to an air nozzle 81a which is a hot air outlet of the hot air generator 81, the hot air is directed to the coil 11 made of the wire 13 wound around the bobbin 14 to which the winding shaft 24 of the winding machine 20 is attached. Is blocked in the other direction. In this embodiment, the hot air is curved in an arc shape so as to be guided in a direction away from the winding machine 20 as indicated by a solid arrow.

  Further, the coil manufacturing apparatus 10 is wound by the winding machine 20 and the wall facing position shown in FIG. 1 where the tip of the air nozzle 81a which is the hot air blowing port of the hot air generator 81 faces the hot air blocking wall 83, and the winding machine 20. A blowing port moving means 84 is provided for moving between the coil facing position shown in FIG.

  As shown in FIGS. 1 and 2, the air outlet moving means in this embodiment is an actuator 84 provided on the base 10a. Specifically, an air cylinder 84 that is an actuator for moving the hot air generator 81 is provided extending in the Y-axis direction, and a retracting rod 84 a of the air cylinder 84 is attached to the hot air generator 81.

  Then, when the retracting rod 84a of the air cylinder 84 that is the air outlet moving means is protruded, the hot air generator 81 is moved as shown by the solid line arrow in FIG. 2, and the air nozzle 81a that is the hot air outlet is wound around the air blowing end. It is comprised so that it may be located in the coil opposing position which faces the circular coil 11 of the wire machine 20. FIG.

  On the other hand, when the air cylinder 84 immerses the retracting rod 84a, the hot air generator 81 is moved as shown by the broken line arrow in FIG. 1, and the blowing end of the air nozzle 81a is moved from the circular coil 11 in the Y-axis direction. It is comprised so that it may be located in the wall opposing position which opposes the hot air blocking wall 83 provided apart.

  Therefore, the air cylinder 84 serving as the blowing port moving means is configured to be able to move the air nozzle 81a serving as the hot air blowing port between the coil facing position and the wall facing position.

  When the bobbin 14 is carried in and the coil 11 is carried out, the air nozzle 81a is located at the wall facing position shown in FIG. 1, but the insulating film of the wire 13 constituting the circular coil 11 is melted by heating and cooled and fixed. Therefore, at the time of winding, the air nozzle 81a of the hot air generator 81 moves from the wall facing position to the coil facing position shown in FIG. 2 and blows hot air so that the insulating film of the wire 13 of the circular coil 11 is melted and fixed. Composed.

  Next, the manufacturing method of the coil in this invention is demonstrated.

  In the coil manufacturing method of the present invention, the hot-sealable wire 13 is wound around the bobbin 14 carried into the winding machine 20 while hot air is blown by the hot air generator 81 to obtain the coil 11, and then the coil 11 is It is a manufacturing method of the coil carried out from the winding machine 20. For this reason, this manufacturing method has a bobbin carrying-in process, a winding process, and a coil carrying-out process.

  The characteristic point is that when the bobbin 14 is carried in and the coil 11 is carried out, the hot air blocking wall 83 is opposed to the hot air outlet 83 of the hot air generator 81 to block the hot air directed toward the bobbin 14 and the coil 11. Each step will be described in detail below.

<Bobbin loading process>
In this step, the bobbin 14 is carried into the winding machine 20. The bobbins 14 are aligned and supplied by the bobbin parts feeder 16, and the aligned bobbins 14 are carried into the winding machine 20 by the conveying means 30 in order from the end.

  The conveyance by the conveyance means 30 is performed using the bobbin gripping mechanism 40, and the conveyance motor 33 (FIG. 1) is driven to move the bobbin gripping mechanism 40 along the X axis, and the bobbin gripping mechanism 40 is used for the bobbin. It is located above the parts feeder 16.

  Then, as shown in FIGS. 9 and 10, after the distance between the pair of front and rear movable members 52a, 52a of the air cylinder 52 for conveyance is increased, the operation motor 51 in the bobbin gripping mechanism 40 is driven to carry the conveyance. The air cylinder 52 is lowered, and the pair of grip pieces 54, 54 provided on the pair of movable members 52a, 52a are positioned on both sides of the bobbin 14 in the X-axis direction.

  Thereafter, by narrowing the distance between the pair of front and rear movable members 52a and 52a, the pair of gripping pieces 54 and 54 are narrowed to each other, and the bobbin 14 existing between them is removed from both sides in the X-axis direction as shown in FIG. Grab from the surroundings.

  When the bobbin 14 is gripped, an air suction unit (not shown) airs through a pair of gripping pieces 54, 54 through an air hole 57 whose one end opens on a contact surface 54 a that contacts the outer peripheral surface of the bobbin 14. And the bobbin 14 is adsorbed to a pair of gripping pieces 54 and 54 sandwiching the bobbin 14.

  Thereafter, the operation motor 51 is driven to raise the conveying air cylinder 52 together with the bobbin 14, and the bobbin 14 gripped by the pair of gripping pieces 54, 54 is taken out from the parts feeder 16.

  Then, the conveying motor 33 is driven to move the bobbin gripping mechanism 40 together with the bobbin 14 toward the winding machine 20, and the bobbin 14 is positioned above the winding shaft 24 in the winding machine 20.

  Thereafter, the operating motor 51 is driven again to lower the conveying air cylinder 52 together with the bobbin 14, and the bobbin 14 is fitted into the winding shaft 24 and attached as shown in FIG. 5.

  In the present invention, when the bobbin 14 is carried in, the hot air blocking wall 83 is opposed to the hot air outlet 81 a of the hot air generator 81 to block the hot air toward the bobbin 14. For this reason, in this bobbin carrying-in process, the air cylinder 84 which is a blowout port moving means immerses the retracting rod 84a and moves the hot air generator 81 as shown by the broken line arrow in FIG. The blowing end is positioned at a wall facing position that faces the hot air blocking wall 83 that is spaced apart from the winding machine 20 in the Y-axis direction.

  As a result, the hot air blown from the air nozzle 81a, which is the hot air blowing port of the hot air generator 81, is removed from the winding machine 20 by the hot air blocking wall 83 formed in a circular arc shape as indicated by the solid line arrow in FIG. It is guided in the direction away from it and does not go to the winding machine 20 side. Thereby, the bobbin 14 carried into the winding machine 20 is not blown away by the hot air, and the bobbin 14 can be carried in reliably and promptly.

  After the bobbin 14 is mounted on the winding shaft 24, the gripping of the bobbin 14 by the pair of gripping pieces 54, 54 is canceled, and the bobbin gripping mechanism 40 is replaced with the parts feeder 16 and the winding machine as shown in FIG. It is located between 20 so as not to interfere with the subsequent winding process.

<Winding process>
In this step, the hot-sealable wire 13 is wound around the bobbin 14 carried into the winding machine 20 while hot air is blown by the hot air generator 81 to obtain the coil 11. For this reason, first, the projecting rod 84a of the air cylinder 84 which is the blowing port moving means is protruded, and the hot air generator 81 is moved as shown by the solid line arrow in FIG. Is positioned at the coil facing position facing the winding shaft 24 of the winding machine 20. In this state, winding by the winding machine 20 is performed.

  As shown in FIG. 3, the winding by the winding machine 20 causes one end of the wire 13 drawn out from the nozzle 26 to be gripped by one gripping tool 28 provided around the disk 23 as the winding start wire 13. .

  Then, as shown in FIGS. 4 and 5, after the winding wire 13 is guided to the concave groove 24c formed on the upper edge of the large diameter portion 24b, the winding motor 21 is driven to rotate the winding shaft. 24 is rotated, and the wire 13 fed from the tip of the nozzle 26 is wound around the paper bobbin 14 fitted into the winding shaft 24.

  During this winding, the nozzle 26 is reciprocated in the Z-axis direction by the nozzle moving mechanism 27 to wind the wire 13 around the paper bobbin 14 in an aligned manner.

  After winding the wire 13 a predetermined number of times, the wire 13 fed from the nozzle 26 is guided to the concave groove 24c formed on the upper edge of the large diameter portion 24b, and then the winding wire 13 is used as the wire end 13 at the end of winding. The other gripping tool 29 provided in the periphery is gripped.

  In this way, the wire 13 is wound around the tubular paper bobbin 14 to form the circular coil 11 around the paper bobbin 14. In this way, the drawn coil 13a, 13b (FIG. 5) composed of the wire 13 at the beginning of winding and the wire 13 at the end of winding is accommodated in the concave groove 24c, and the circular coil 11 is drawn out.

  Here, since the wire 13 is the heat-fusible wire 13 whose insulating film is melted by heating and cooled and fixed, hot air is blown to the circular coil 11 by the hot air generator 81 during this winding. Then, the insulating film of the wire 13 is melted and fixed to weld the wires 13 to each other. Further, by blowing hot air, the wire rods 13 are welded to each other, and the circular coil 11 is adhered to the paper bobbin 14 so that the shape of the circular coil 11 made of the wound wire rod 13 collapses thereafter. To prevent that.

<Coil unloading process>
In this step, the circular coil 11 is unloaded from the winding machine 20. At the time of carrying out, the winding machine 20 removes the wire 13 at the beginning of winding in the coil 11 from the gripping tool 28 and cuts the wire 13 at the end of winding near the gripping tool 29.

  Then, the circular coil 11 is carried out by the coil gripping mechanism 60 of the transport means 30, and the transport motor 33 (FIG. 1) is driven to move the coil gripping mechanism 60 along the X axis. 60 is positioned above the winding machine 20.

  Then, as shown in FIG. 7 and FIG. 8, after increasing the distance between the pair of front and rear movable members 72 a, 72 a of the conveying air cylinder 72, the operation motor 71 in the coil gripping mechanism 60 is driven, As shown in FIG. 5, the pair of gripping pieces 74, 74 provided on the pair of movable members 72 a, 72 a are positioned on both sides of the circular coil 11 in the X-axis direction.

  Then, by narrowing the distance between the pair of front and rear movable members 72a and 72a, the pair of gripping pieces 74 and 74 are narrowed to each other. Thereby, as shown in FIG. 8, the circular coil 11 existing between the both sides in the X-axis direction is gripped from the outer periphery.

  When gripping the circular coil 11, an air suction unit (not shown) is connected to the contact surface 74 a that contacts the outer peripheral surface of the circular coil 11 of the pair of gripping pieces 74, 74 through an air hole 77 whose one end opens. Then, the air is sucked and the circular coil 11 is adsorbed to a pair of gripping pieces 74 and 74 sandwiching the circular coil 11.

  Thereafter, the operation motor 71 is driven to raise the conveying air cylinder 72 together with the circular coil 11, and the circular coil 11 gripped by the pair of gripping pieces 74, 74 is pulled out from the winding shaft 24.

  Then, the conveying motor 33 is driven to move the coil 11 gripping mechanism 60 together with the circular coil 11 in the X-axis direction, and the circular coil 11 is positioned above the belt conveyor 17.

  In the coil gripping mechanism 60 moved to above the belt conveyor 17, the distance between the pair of front and rear movable members 72 a and 72 a of the conveying air cylinder 72 is expanded with the pair of gripping pieces 74 and 74. The gripping of the coil 11 by the pair of gripping pieces 74 and 74 is canceled, and the coil 11 is dropped onto the belt conveyor 17. At this time, the air aspirator is stopped and the adsorption of the coil 11 to the gripping piece 74 is eliminated. The coil 11 dropped from between the pair of gripping pieces 74 and 74 is received by the belt conveyor 17 and discharged to the outside of the apparatus 10.

  Then, as shown in FIG. 1, the pair of gripping pieces 74, 74, whose gripping of the coil 11 is eliminated, is moved toward the winding machine 20, and the coil gripping mechanism 60 is moved between the belt conveyor 17 and the winding machine 20. Position and prepare to grip the next circular coil 11 made by the winding machine 20. Thereby, a series of manufacture of the single coil 11 is complete | finished, and manufacture of the next coil 11 is started.

  In the present invention, when the coil 11 is unloaded, the hot air blocking wall 83 is opposed to the hot air outlet 81 a of the hot air generator 81 to block the hot air toward the coil 11.

  For this reason, in this coil carrying-out process, the air cylinder 84, which is a blowing port moving means, immerses the retracting rod 84a and moves the hot air generator 81 as shown by the broken line arrow in FIG. The blowing end is positioned at a wall facing position that faces the hot air blocking wall 83 that is provided away from the circular coil 11 in the Y-axis direction.

  As a result, the hot air blown from the air nozzle 81a, which is the hot air outlet of the hot air generator 81, is moved away from the coil 11 as shown by the solid line arrow in FIG. Is not guided to the coil 11.

  Thereby, the coil 11 carried out from the winding machine 20 is not blown away by the hot air, and the coil 11 can be carried out reliably and promptly.

  Here, as shown in FIG. 1, the distance L between the bobbin gripping mechanism 40 and the coil gripping mechanism 60, the distance L between the winding machine 20 and the bobbin parts feeder 16, the winding machine 20 and the belt conveyor 17 Therefore, when the coil gripping mechanism 60 faces the winding machine 20, the bobbin gripping mechanism 40 faces the bobbin parts feeder 16.

  For this reason, when the coil gripping mechanism 60 faces the winding machine 20 and grips the coil 11, the bobbin gripping mechanism 40 faces the bobbin parts feeder 16 and grips the bobbin 14. When the coil gripping mechanism 60 faces the belt conveyor 17 and attempts to drop the gripped coil 11 onto the conveyor 17, the bobbin gripping mechanism 40 faces the winding machine 20 and winds the bobbin 14 around the winding axis. 24 can be mounted.

  Therefore, the unloading of the coil 11 and the unloading of the bobbin 14 are performed at the same time, and the time required for unloading the bobbin 14 and discharging the coil 11 between the windings is compared with the case where they are performed separately. The manufacturing time of the coil 11 can be remarkably shortened.

  As described above, in the coil manufacturing apparatus and the manufacturing method thereof according to the present invention, when the bobbin 14 is carried in and the coil 11 is carried out, the hot air generator 81 or the hot air blocking wall 83 is moved, and the hot air is blown off at the hot air outlet 81a. Since the wall 83 is opposed, the hot air toward the bobbin 14 and the coil 11 can be blocked. Then, even if hot air blows out from the hot air outlet 81a of the hot air generator 81, the bobbin 14 and the coil 11 conveyed by the hot air are not blown away.

  And since the movement of the blower outlet 81a and the hot air blocking wall 83 can be quickly performed as compared with the case where the rotation of the fan of the hot air generator 81 is stopped, the carry-in of the bobbin 14 and the carry-out of the coil 11 are delayed. Nor.

  Therefore, in the present invention, the manufacturing time of the coil 11 can be shortened as compared with the prior art without stopping the blowing of hot air.

  In the above-described embodiment, the air cylinder 84 serving as the air outlet moving means moves the hot air outlet 81 a together with the hot air generator 81 to the wall facing position facing the hot air blocking wall 83 and the coil facing the coil 11. Although the case of moving between the opposed positions has been shown, the air outlet moving means is not limited to the air cylinder 84 as long as the hot air outlet 81a can be moved. For example, it may be a motor or a solenoid that causes a rod to appear and retract by electrical means.

  In the above-described embodiment, the nozzle 81a constituting the hot air outlet 81 is moved together with the hot air generator 81. However, as long as the hot air outlet 81a can be moved, the hot air generator 81 itself is not moved. Also good. For example, from a hot air generator body (not shown), a nozzle 81a that forms a hot air blowing port is formed so as to be able to appear and retract, or the nozzle 81a is made extendable, and the blowing port is moved by the appearing or expanding or contracting of the nozzle 81a. You may do it.

  Further, in the above-described embodiment, the hot air blocking wall 83 is fixed, and the air cylinder 84 that is the blowing port moving means moves the hot air blowing port 81 a together with the hot air generator 81 to face the hot air blocking wall 83. Although the case of moving between the position and the coil facing position opposite to the coil 11 has been shown, the hot air blocking wall 83 may be moved by the wall moving means without moving the hot air outlet. The wall moving means (not shown) in this case is sufficient as long as it moves the hot air blocking wall between the first position facing the air outlet and the second position separated from the air outlet.

  Even if it does in this way, even if a hot air blows off from the hot air blower outlet 81a of the hot air generator 81, it becomes possible to prevent the bobbin 14 and the coil 11 conveyed by the hot air from being blown off.

  Further, in the above-described embodiment, the winding machine 20 that obtains the circular coil 11 by winding the wire 13 around the paper bobbin 14 has been described. However, the bobbin 14 is not limited to the paper bobbin 14. Alternatively, a bobbin 14 made of resin or a non-magnetic thin film may be used. Here, as the resin bobbin 14, for example, a resin bobbin 14 made of a polyimide film (trade name; Kapton) is preferable.

DESCRIPTION OF SYMBOLS 10 Coil manufacturing apparatus 11 Coil 13 Wire 14 Bobbin 20 Winding machine 24 Winding shaft 30 Bobbin conveyance means 81 Hot air generator 81a Nozzle (hot air blowing port)
83 Hot air blocking wall 84 Air cylinder (outlet moving means)

Claims (3)

A winding machine having a winding shaft (24) configured to be capable of mounting a bobbin (14) and winding a heat-fusible wire (13) around the bobbin (14) mounted on the winding shaft (24) (20) and
A hot air generator (81) for blowing hot air to the coil (11) made of the wire rod (13) wound around the bobbin (14);
When the hot air outlet (81a) of the hot air generator (81) is opposed, the hot air blocking wall (83) configured to be able to block the hot air toward the coil (11),
A blowing port moving means (84) for moving the hot air blowing port (81a) between a wall facing position facing the hot air blocking wall (83) and a coil facing position facing the coil (11),
Bobbin conveying means (30) for carrying the bobbin (14) into the winding machine (20) and carrying out the coil (11) together with the bobbin (14) from the winding machine (20). Manufacturing equipment. A winding machine having a winding shaft (24) configured to be capable of mounting a bobbin (14) and winding a heat-fusible wire (13) around the bobbin (14) mounted on the winding shaft (24) (20) and
A hot air generator (81) for blowing hot air to the coil (11) made of the wire rod (13) wound around the bobbin (14);
A hot air blocking wall (83) configured to be able to block hot air toward the coil (11) when facing the hot air outlet (81a) of the hot air generator (81),
Wall moving means for moving the hot air blocking wall (83) between a first position facing the blowing port (81a) and a second position spaced from the blowing port (81a);
Bobbin conveying means (30) for carrying the bobbin (14) into the winding machine (20) and carrying out the coil (11) together with the bobbin (14) from the winding machine (20). Manufacturing equipment. A coil (11) is obtained by winding a heat-fusible wire (13) while blowing hot air to a bobbin (14) carried into a winding machine (20) by a hot air generator (81), and the coil (11) In the manufacturing method of the coil that is unloaded from the winding machine (20),
When the bobbin (14) is carried in and the coil (11) is carried out, the hot air blocking wall (83) is opposed to the hot air outlet (81a) of the hot air generator (81) so that the bobbin (14) and the coil ( 11) A method for manufacturing a coil, characterized in that hot air directed toward 11) is blocked.

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