JP2012199467A - Winding device and winding method of air-core coil - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a winding device and a winding method of an air-core coil in which heating is carried out efficiently, and the performance and quality of an air-core coil can be enhanced as compared with prior art.SOLUTION: The winding device 1 of air-core coil comprises a winding core 20 around which a wire material becoming a coil is wound, a heater 60 which supplies heat toward a winding position CP where the wire material is wound around the winding core 20, and a first shielding member 200 and a second shielding member 210 disposed to sandwich at least a part of the outer peripheral region of the winding position CP from both sides.

Description

  The present invention relates to an air core coil winding apparatus and a winding method for manufacturing an air core coil by winding a wire around a winding core.

  An air-core (bobbinless) coil is a coil in which a wire is wound into a cylindrical shape or the like, and nothing is put in the center thereof. In general, the air-core coil maintains its form by adhering wires forming the coil with an adhesive.

  Conventionally, an air-core coil is manufactured by winding a wire previously coated with an adhesive around a core provided in a dedicated winding device to form a coil, and removing the formed coil from the core. And the adhesive agent coat | covered with the wire is heated with hot air etc. during winding, and exhibits adhesive force by softening (for example, refer patent document 1).

  In order to improve the performance and quality of the air-core coil, it is preferable that the wire is wound without any disturbance in an aligned state, and in order to prevent the winding from being disturbed, an adhesive coated on the wire is used. It is necessary to heat uniformly and soften it without unevenness, and to keep the temperature of the winding core and the jig for determining the winding position, the dimensional shape of the coil, etc. constant. For this reason, in the conventional winding apparatus, the hot air outlet is disposed at a certain distance from the winding position of the wire and the jig so as not to locally heat the wire and the jig.

Japanese Patent Laid-Open No. 10-304628

  However, when the hot air outlet is moved away from the winding position and the jig, the blown hot air diffuses before reaching the wire rod, the jig, etc., and there is a problem that the thermal efficiency deteriorates. In addition, because it is easily affected by the ambient temperature and humidity around the winding device, and airflow generated by air conditioning equipment, it becomes difficult to control the temperature of wires and jigs, and this hinders improvement in coil quality and yield. It was with me.

  Furthermore, when hot air is blown by the airflow, an unexpected part of the winding device may be heated, for example, the spindle bearing that rotates together with the winding core is heated, thereby reducing the bearing life. Troubles occurred. Many such troubles were found especially under high temperature setting conditions.

  Also, recently, an improvement in the performance of a device using an air core coil, for example, a device with a physical operation such as a hard disk drive, there is a need for an air core coil that further enhances the adhesion between the wires forming the coil. It is becoming. In order to increase the adhesive force between the wires, it is necessary to stabilize the wires and jigs while being heated to a higher temperature. However, in the conventional winding device, the wires and jigs are heated to a higher temperature, In addition, it was difficult to heat to a uniform state.

  In view of such circumstances, the present invention intends to provide an air core coil winding device and a winding method capable of efficiently heating and improving the performance and quality of the air core coil more than ever. Is.

  (1) The present invention relates to a winding core around which a wire to be a coil is wound, a heating device that supplies heat toward a winding position where the wire is wound around the winding core, A winding device for an air-core coil, comprising: a first shielding member and a second shielding member arranged so as to sandwich at least a part of an outer peripheral region from both sides.

  (2) The present invention is also characterized in that at least one of the first shielding member and the second shielding member is arranged to be movable in a direction away from the winding position. The air core coil winding device according to (1).

  (3) In the present invention, the first shielding member is disposed on one side in the axial direction of the core, and the second shielding member is disposed on the other side in the axial direction of the core. The air-core coil winding device according to any one of (1) and (2) above.

(4) The present invention is also arranged on one side in the axial direction of the core, and a first jig for determining a traverse origin when winding the wire, and the axis on the other side in the axial direction of the core. And a second jig for determining the winding width of the wire, and the second shielding member reciprocates in the axial direction of the core together with the second jig. It is arranged to be possible,
It is a winding apparatus of the air-core coil as described in said (3).

  (5) In the present invention, the first shielding member is arranged such that a first notch is formed and at least a part of the first jig is located in the first notch. The second shielding member is formed such that a second notch is formed and at least a part of the second jig is positioned in the second notch. The air core coil winding device according to (4) above.

  (6) The present invention is also characterized in that the first shielding member and the second shielding member are arranged so as to sandwich the hot air outlet of the heating device from both sides during winding of the wire. The air core coil winding device according to any one of (1) to (5) above.

  (7) In the present invention, the first shielding member and the second shielding member may be at least a part above, below, or on a side of a region sandwiched between the first shielding member and the second shielding member. The air core coil winding device according to any one of (1) to (6) above, wherein the winding device is configured to be opened.

  (8) The present invention also includes an adjusting mechanism capable of adjusting the positions of the first shielding member and the second shielding member during winding of the wire. 7) The air core coil winding device according to any one of 7).

  (9) The present invention is also wound around the winding core in a state where at least a part of the outer peripheral region of the winding position where the wire to be a coil is wound around the winding core is sandwiched from both sides by two shielding members. In addition, the air core coil winding method is characterized in that the wire is heated.

  According to the air core coil winding device and the winding method of the present invention, it is possible to achieve an excellent effect that heating can be performed efficiently and the performance and quality of the air core coil can be improved more than before.

It is a schematic front view of the winding apparatus of the air-core coil which concerns on embodiment of this invention. It is a schematic plan view of the winding device of an air core coil. It is the schematic which looked at the circumference of the 1st jig and the 1st shielding member from the 2nd jig side. It is the schematic which looked at the circumference of the 2nd jig and the 2nd shielding member from the 1st jig side. (A)-(d) It is the schematic which showed a part of operation | movement of the winding apparatus of an air core coil. (A)-(d) It is the schematic plan view which showed the example of the other form of the 1st shielding member and the 2nd shielding member. (A) And (b) It is the schematic plan view which showed the example which provided the obstruction | occlusion part in the 2nd shielding member.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a schematic front view of an air core coil winding device 1 according to the present embodiment, and FIG. 2 is a schematic plan view of the air core coil winding device 1. In FIGS. 1 and 2, there is a part in which the description of a part of the configuration is omitted.

  As shown in these drawings, an air-core coil winding device (hereinafter simply referred to as a winding device) 1 is wound with a spindle block 10 that supports each configuration described later and a wire forming the coil. Winding core 20, a first jig 30 for determining the traverse origin when winding the wire, a second jig 40 for determining the winding width of the wire, and a wire supply for supplying the wire to the winding position CP A device 50, a heating device 60 that supplies heat toward the winding position CP, a forming pin 70 that runs over the wire end of the coil that has been wound, a take-out block 80 that takes out the coil that has been wound, The main motor 100 that rotationally drives the winding core 20, the first jig 30, and the second jig 40, and a part of the outer peripheral area (outer peripheral space) of the winding position CP of the wire rod are arranged to be sandwiched from both sides. The first shielding member 200 and the second shielding member And it is configured to include a member 210, a.

  The spindle block 10 is a member that is substantially U-shaped when viewed from the front, and includes a fixed-side bearing portion 12 and a movable-side bearing portion 14 that protrude upward. The fixed-side bearing portion 12 is a portion that rotatably supports a fixed-side spindle 32 to which the first jig 30 is attached. The movable-side bearing portion 14 is attached to the core 20 and the second jig 40. This is a portion that supports the movable spindle 42 so as to be rotatable and slidable in the axial direction.

  The fixed-side spindle 32 and the movable-side spindle 42 are coaxially arranged with each other by being supported by the spindle block 10, and are substantially horizontally inward from the fixed-side bearing portion 12 and the movable-side bearing portion 14, respectively. It is arranged to protrude. Accordingly, the fixed-side spindle 32 and the movable-side spindle 42 are configured such that the tip portions to which the first jig 30 and the second jig 40 are attached are opposed to each other. A winding position CP where the wire is wound around the core 20 is set between the jigs 40.

  A tail plate 16 is disposed outside the side of the movable side bearing portion 14 of the spindle block 10. The tail plate 16 is slidably disposed on two slide shafts 15 protruding from the spindle block 10 so as to be substantially parallel to the fixed spindle 32 and the movable spindle 42, and the end of the movable spindle 42 rotates. It is fixed freely. Further, a ball screw transmission mechanism 104 driven by a tail plate moving motor 102 is connected to the tail plate 16.

  In other words, the tail plate 16 is driven by the tail plate moving motor 102 so as to be reciprocally movable in the axial direction of the fixed side spindle 32 and the movable side spindle 42. The winding core 20, the second jig 40, and the movable spindle 42 are configured to reciprocate together with the tail plate 16 so as to approach or separate from the first jig 30 in the axial direction. .

  A carry-out chute 18 is provided at a portion below the winding position CP of the spindle block 10. The carry-out chute 18 is an inclined passage from the lower side of the winding position CP to the front (front side) of the spindle block 10 and is used for sliding the coil that has been wound to the front side. .

  The winding core 20 is a member around which a wire forming a coil by being rotated is wound around the outer periphery. Accordingly, the cross-sectional shape of the core 20 is configured to be substantially the same as the inner shape of the coil. The winding core 20 is coaxially arranged inside the second jig 40 and the movable spindle 42 so that it is driven by the main motor 100 and rotates together with the second jig 40 and the movable spindle 42. It has become.

  Further, the core 20 is disposed so as to be slidable in the axial direction with respect to the second jig 40 and the movable spindle 42, and is driven by a core cylinder 22 disposed on the tail plate 16, The second jig 40 is movable between a protruding position protruding from the end face of the jig 40 and a retracted position where the second jig 40 is drawn inward from the end face of the second jig 40.

  The first jig 30 is a member for determining the traverse origin of the wire supply device 50 at the time of winding the wire, that is, a reference position (winding start position) in the winding width direction. It is fixed to the tip. Therefore, the first jig 30 is driven to rotate by the main motor 100 together with the fixed-side spindle 32.

  A wire end fixing device 34 is provided between the first jig 30 and the fixed side bearing portion side 12 for cutting the wire supplied from the wire supplying device 50 and fixing the end. Although detailed description is omitted, the wire rod end fixing device 34 is driven by a dedicated cylinder 36 and moves in the axial direction of the stationary spindle 32 to cut the wire rod and fix the wire rod end portion. It is configured.

  The second jig 40 is a member for determining the winding width of the wire, that is, the width direction (axial direction) dimension of the coil, and is fixed to the distal end portion of the movable spindle 42. Accordingly, the second jig 40 is driven to rotate by the main motor 100 together with the movable spindle 42.

  Further, as described above, the second jig 40 is driven by the tail plate moving motor 102 so as to reciprocate in the axial direction together with the movable side spindle 42 and the core 20. As a result, the second jig 40 is located at a close position close to the first jig 30 when the wire is wound, and is moved away from the first jig 30 after the winding is completed. Evacuate. 1 and 2 show a case where the second jig 40 is in the retracted position.

  The winding position CP around which the wire is wound is between the second jig 40 and the first jig 30 in the close position. Specifically, the wire rod supplied from the wire rod supply device 50 protrudes from the second jig 40 in the proximity position of the core 20 and is interposed between the first jig 30 and the second jig 40. It is designed to be wound around the part where it is located. Then, by adjusting the proximity position of the second jig 40, the winding width of the wire can be adjusted or changed.

  The wire rod supply device 50 supplies a wire rod from above to the winding position CP. The wire rod supply device 50 includes a guide roller 52 for routing a wire rod supplied from a supply source (not shown) according to the winding direction, and a wire rod scissor 54 for guiding the wire rod to a predetermined position. Further, the wire rod supply device 50 is configured to be reciprocally movable (traverse) in parallel with the axial direction of the core 20 by a traverse motor 56, thereby guiding the wire rod to an appropriate position during winding. The wire is guided to the wire end fixing device 34 at the start and end of winding.

  The heating device 60 is configured to blow out compressed air adjusted to a predetermined pressure and flow rate (air volume) from the blow-out port 62 while heating it with a heating wire, and supplies hot air toward the winding position CP. Thus, the wire rod supplied to the winding position CP is heated, and the core 20, the first jig 30, and the second jig 40 are heated. The heating device 60 softens the adhesive coated on the wire by heating so that the wire can be bonded to each other in a state of being wound around the core 20, and the core 20, the first jig 30, and It functions to hold the second jig 40 at a predetermined temperature state.

  Further, the heating device 60 is configured to be capable of reciprocating between a proximity position in which the blowout port 62 is brought close to the winding position CP by a dedicated cylinder 64 and a retracted position in which the blowout port 62 is separated from the winding position. Yes. That is, the heating device 60 is positioned in the proximity position when the wire is wound, and is positioned in the retracted position when the winding is finished. Depending on the heating conditions, the heating device 60 is used in a state of being fixed at a predetermined position without reciprocating.

  The forming pin 70 is configured to project from the rear toward the space between the first jig 30 and the wire end fixing device 34 by a dedicated cylinder 72. The forming pin 70 pulls the wire end (lead portion) of the coil after the winding is completed, or pushes or pulls the intermediate portion of the wire end to pull the wire end from the first jig 30. It works to make you leave.

  The coil extraction block 80 is configured to protrude from the rear toward the end surface of the second jig 40 in the retracted position by a dedicated cylinder 82. The coil take-out block 80 functions to press the coil that remains attached to the second jig 40 with an adhesive after the winding is completed and drop it onto the carry-out chute 18.

  The main motor 100 is disposed on the back side of the spindle block 10. The main motor 100 rotationally drives the fixed side spindle 32 and the first jig 30 via pulleys 112 and 114 and a belt 116. The main motor 100 also includes the pulleys 122 and 124 and the belt 126, the spline shaft 128 disposed so as to penetrate the spindle block 10, and the movable side spindle 42 and the second jig via the pulleys 132 and 134 and the belt 136. 40 and the winding core 20 are driven to rotate.

  In addition, the winding device 1 includes a control device (not shown). The control device includes a CPU, a ROM, a RAM, and the like, and controls the operation of each part of the winding device 1 including the main motor 100.

  The first shielding member 200 and the second shielding member 210 shield a part of the outer peripheral region of the winding position CP from both sides so that the hot air blown from the heating device 60 is diffused to the surroundings. It is a member for suppressing. The first shielding member 200 and the second shielding member 210 also function to suppress the airflow around the winding device 1 from flowing into the winding position CP, and the hot air from the heating device 60 is wound. It is prevented from flowing to a region other than the line position CP.

  In the present embodiment, by providing the first shielding member 200 and the second shielding member 210, the thermal efficiency of heating by the heating device 60 is improved, and the heating by the air flow generated by the ambient temperature, humidity, air conditioning equipment, and the like. To reduce the impact on And in this embodiment, since the wire forming the coil can be heated to a substantially uniform state at a higher temperature and in a stable atmosphere than before, while increasing the adhesive force between the wires, Stable winding is possible.

  As described above, in addition to the first jig 30 and the second jig 40, the wire end fixing device 34, the wire supply device 50, the heating device 60, and the forming pin 70 are provided around the winding position CP. Since a large number of devices including movable parts such as the coil extraction block 80 are arranged, the first shielding member 200 and the second shielding member 210 need to be configured so as not to hinder the operation of these devices. is there.

  For this reason, in the present embodiment, the first shielding member 200 and the second shielding member 210 are configured in a substantially flat plate shape, are substantially upright, and the winding core 20 (and the fixed-side spindle 30 and the movable-side spindle 40). It arrange | positions so that it may substantially orthogonally cross with respect to the axial direction. More specifically, the first shielding member 200 is disposed so as to be substantially orthogonal to the axial direction of the stationary spindle 32 in the outer peripheral region of the first jig 30, and the second shielding member 210 is In the outer peripheral region of the second jig 40, the second jig 40 is arranged so as to be substantially orthogonal to the axial direction of the movable spindle 42. Accordingly, the first shielding member 200 and the second shielding member 210 are arranged on one side and the other side in the axial direction of the core 20 with respect to the winding position CP in a state parallel to each other.

  In the present embodiment, the hot air blowing direction from the blowing port 62 of the heating device 60 and the operation directions of the forming pin 70 and the coil take-out block 80 are set to be orthogonal to the axial direction of the core 20. Therefore, the 1st shielding member 200 and the 2nd shielding member 210 will be arranged in parallel to these directions, respectively. As a result, the first shielding member 200 and the second shielding member 210 smoothly guide the hot air from the heating device 60 to the winding position CP, and do not hinder the operations of the forming pin 70 and the coil take-out block 80. It is possible to make it.

  FIG. 3 is a schematic view of the periphery of the first jig 30 and the first shielding member 200 as viewed from the second jig 40 side, and FIG. 4 shows the second jig 40 and the second shielding. It is the schematic which looked at the circumference of member 210 from the 1st jig 30 side. In these drawings, the case where the heating device 60 is in the close position is indicated by a solid line, and the case where it is in the retracted position is indicated by a two-dot chain line. In these drawings, the coil 300 formed on the core 20 is indicated by a two-dot chain line.

  As shown in FIG. 3, the first shielding member 200 is a substantially rectangular flat plate, and a substantially arc-shaped first cutout portion 200 a is formed on the upper side of the center portion. And the 1st shielding member 200 is arrange | positioned so that a part of 1st jig | tool 30 may be located in this 1st notch part 200a, The carry-out chute 18, the wire end fixing device 34, a wire rod It is comprised so that it may not interfere with the wire rod 54 of the supply apparatus 50, the blower outlet 62 of the heating apparatus 60, the forming pin 70 grade | etc.,.

  As shown in FIG. 4, the second shielding member 210 is a substantially rectangular flat plate, and a substantially circular second notch 210 a is formed at the center. And the 2nd shielding board 210 is arrange | positioned so that a part of 2nd jig | tool 40 may be located in the 2nd notch part 210a, The discharge chute 18, the blowing outlet 62 of the heating apparatus 60, and It is configured not to interfere with the coil extraction block 80 and the like.

  In the present embodiment, by configuring the first shielding member 200 and the second shielding member 210 in this way, while effectively shielding the outer peripheral region of the winding position CP, It is possible to arrange without interfering. In particular, the first shielding member 200 and the second shielding member 210 can be arranged very easily without changing the configuration of the existing winding device.

  In the present embodiment, as shown in FIGS. 3 and 4, the air outlet 62 of the heating device 60 is sandwiched from both sides by the first shielding member 200 and the second shielding member 210 at the close position. Therefore, the hot air blown from the blowout port 62 can be reliably guided toward the winding position CP.

  Returning to FIGS. 1 and 2, the first shielding member 200 is fixed to the fixed-side bearing portion 12 of the spindle block 10 via the two fixing members 202. Each of the two fixing members 202 is a rod-like member disposed substantially parallel to the axial direction of the core 20, and the first shielding member 200 is connected to the distal end portion, and a part of the proximal end side is fixed. It is inserted into a fixing hole 12 a formed in the side bearing portion 12 and is positioned and fixed by a fixing screw 204.

  That is, the two fixing members 202 that fix the first shielding member 200 adjust the amount of protrusion from the fixed-side bearing portion 12 by loosening the fixing screw 204, thereby changing the position of the first shielding member 200. It is configured to be adjustable in the axial direction of the core 20.

  Similarly, the second shielding member 210 is fixed to the tail plate 16 via two rod-like fixing members 212 disposed substantially parallel to the axial direction of the core 20. Two through holes 14a are formed in the movable bearing portion 14 substantially in parallel with the axial direction of the core 20, and a cylindrical bush 14b is inserted into the through hole 14a. The two fixing members 212 are respectively inserted in the bush 14b and arranged so as to be slidable in the axial direction, and the second shielding member 210 is connected to the distal end portion, and the proximal end side is arranged. A part is inserted into a fixing hole 16 a formed in the tail plate 16 and positioned and fixed by a fixing screw 214.

  That is, the second shielding member 210 is disposed so as to be movable in the axial direction of the core 20 together with the tail plate 16 via the two fixing members 212. Therefore, the second shielding member 210 is in a close position close to the first shielding member 200 together with the second jig 40 when the wire is wound, and is separated from the first shielding member 200 after the winding is completed. The second jig 40 is withdrawn to the retreat position.

  In addition, the two fixing members 212 for fixing the second shielding member 210 adjust the projecting amount from the tail plate 16 by loosening the fixing screw 214, so that the second fixing member 212 is fixed to the second core 40 and the second jig 40. The relative position of the shielding member 210 is adjustable in the axial direction of the core 20.

  As described above, in the present embodiment, the first shielding member 200 and the second shielding member 210 are arranged in a state in which the position of the core 20 in the axial direction can be arbitrarily adjusted while being a simple method. is doing. That is, in this embodiment, it is possible to appropriately set the distance between the first shielding member 200 and the second shielding member 210 at the time of winding the wire, and thus the wire is wound. The heating state of the wire rod and the winding core 20, the first jig 30, and the second jig 40 can be adjusted as appropriate.

  In the present embodiment, the second shielding member 210 is fixed to the tail plate 16 so that the second shielding member 210 is retracted together with the second jig 40 by utilizing an existing moving mechanism. Yes. As a result, the complexity of the winding device 1 can be reduced, the ease of coil removal after completion of winding can be prevented, and the tact time for coil manufacture can be shortened.

  Next, the operation of the winding device 1 will be described.

  5A to 5D are schematic views showing a part of the operation of the winding device 1. First, FIG. 2A shows a state before the start of winding of the wire. In this state, the second jig 40 and the core 20 are in a retracted position separated from the first jig 30. Further, the heating device 60 is in the retracted position, and the coil take-out block 80 is not protruding. The second shielding member 210 is located at the retracted position separated from the first jig 30 together with the second jig 40.

  Next, FIG. 2B shows a state when the wire is wound. In this state, the second jig 40 is in a close position away from the first jig 30 by a predetermined distance, and the protruding end surface of the core 20 is in contact with the end face of the first jig 30. Yes. The winding core 20 rotates together with the first jig 30, the fixed side spindle 32, the second jig 40, and the movable side spindle 42, and the wire is supplied from the wire supply device 50 that traverses in synchronization therewith. As a result, the wire is wound around the winding core 20 between the first jig 30 and the second jig 40 (that is, the winding position CP) to form a coil.

  At this time, the heating device 60 is in the close position, and supplies heat to the winding position CP by blowing hot air toward the winding position CP. And the 2nd shielding member 210 exists in the proximity position close to the 1st shielding member 200 with the 2nd jig | tool 40, and the blower outlet 62 of the heating apparatus 60 is the 1st shielding member 200 and the 2nd The state is sandwiched between the shielding members 210.

  Accordingly, the hot air from the outlet 62 is guided to the winding position CP while being appropriately dispersed between the first shielding member 200 and the second shielding member 210. And while heating the wire wound around the core 20 appropriately, the core 20 while staying moderately in the region (space) sandwiched between the first shielding member 200 and the second shielding member 210, The first jig 30 and the second jig 40 are appropriately heated. Thereafter, the hot air flows from the region sandwiched between the first shielding member 200 and the second shielding member 210 to the outside through the upper and lower and front and rear open portions.

  Thus, since the wire supplied from the wire supply device 50 is heated in a very stable state, it is wound around the core 20 without causing turbulence while increasing the adhesive force between the wires. It becomes. Moreover, since the heating state of the winding core 20, the first jig 30, and the second jig 40 is stably maintained during winding, the dimensions of these members can be kept substantially constant, The dimensional accuracy and shape accuracy of the formed coil are maintained at a high level.

  Next, FIG. 10C shows a state after the winding of the wire rod is completed. After the winding of the wire is completed, the wire end fixing device 34 first cuts the wire, and the formed coil 300 is separated from the wire from the wire supply device 50. Thereafter, after the lead portion 302 of the coil 300 is detached from the first jig 30 by the forming pin 70 (not shown), the core 20 and the second jig 40 are shown in FIG. Retracts to the retracted position. At this time, the formed coil 300 moves to the retracted position together with the core 20 and the second jig 40, and similarly, the second shielding member 210 also moves to the retracted position. The heating device 60 also moves to the retracted position.

  Next, FIG. 4D shows a state when the coil 300 is taken out. After the core 20 and the second jig are moved to the retracted position, the core 20 is first moved from the protruding position to the retracted position inside the second jig 40, whereby the coil 300 is moved to the second position. The jig 40 is just pasted with an adhesive. Thereafter, as shown in FIG. 6D, the coil take-out block 80 is protruded and the coil 300 is pressed, whereby the coil 300 is detached from the second jig 40 and the lower carry-out chute 18 (not shown). ).

  At this time, since the second shielding member 210 is located in the retracted position together with the second jig 40, the movement of the coil take-out block 80 is not hindered. Further, the coil 300 dropped from the second jig falls into the lower carry-out chute 18 without being obstructed by the first shielding member 200 and the second shielding member 210.

  Thus, the first shielding member 200 and the second shielding member 210 can stably maintain the heating state of the wire or the like without affecting any process in the winding device 1. Yes.

  Next, other forms of the first shielding member 200 and the second shielding member 210 will be described.

  6A to 6D are schematic plan views showing examples of other forms of the first shielding member 200 and the second shielding member 210. FIG. In the above-described example, the example in which the first shielding member 200 and the second shielding member 210 are arranged in parallel to each other has been shown. However, the present embodiment is not limited to this, and for example, FIG. ), The first shielding member 200 and the second shielding member 210 may be arranged with the opposite side (front side) of the heating device 60 open.

  Moreover, the 1st shielding member 200 and the 2nd shielding member 210 may be arrange | positioned in the state which the heating apparatus 60 side (back side) opened, as the figure (b) shows. In addition, although not shown in the drawings, it may be arranged with the upper side opened or the lower side opened. Furthermore, the first shielding member 200 and the second shielding member 210 are arranged in a state of being inclined with respect to the axis A of the winding core 20 and parallel to each other, as shown in FIG. It may be a thing. In this case, the direction of inclination may be any direction.

  In the above-described example, the first shielding member 200 and the second shielding member 210 are configured in a flat plate shape. However, the present embodiment is not limited to this example. For example, FIG. ), The first shielding member 200 and the second shielding member 210 may be formed in a shape obtained by bending a flat plate.

  Although not shown, various other shapes such as an S shape, a wave shape, and a step shape can be employed. Furthermore, the first shielding member 200 and the second shielding member 210 may have a thicker shape, or may be provided with protrusions or the like at each part. Needless to say, the shape of the first shielding member 200 and the second shielding member 210 in a side view is not limited to the substantially rectangular shape shown in the above example.

  FIGS. 7A and 7B are schematic plan views showing an example in which a blocking portion 220 is provided in the second shielding member 210. FIG. 4A shows the case where the second shielding member 210 is in the retracted position, and FIG. 4B shows the case where the second shielding member 210 is in the proximity position. In this example, an example in which a blocking portion 220 that closes the open portion OA on the front side of the region sandwiched between the first shielding member 200 and the second shielding member 210 is provided in the second shielding member 210 is shown. Yes.

  The closing portion 220 is formed by bending an end portion on the front side of the second shielding member 210 into an L shape, and when the second shielding member 210 is in the proximity position, the first shielding member is formed. The open portion OA on the front side of the region sandwiched between the 200 and the second shielding member 210 is closed. By providing the blocking portion 220 in this way, it is possible to appropriately adjust the outflow amount and the outflow direction of hot air from the region sandwiched between the first shielding member 200 and the second shielding member 210. In addition, it is possible to more reliably prevent an external airflow from flowing into a region sandwiched between the first shielding member 200 and the second shielding member 210. Thereby, the heating state of a wire, the winding core 20, etc. can be adjusted moderately.

  The closing part 220 may be provided at the upper end part, the lower end part or the rear side end part of the second shielding member 210. That is, the closing part 220 may close the open part on the upper side, the lower side or the back side. Moreover, the closing part 220 may be partially formed in the upper end part, the lower end part, the front side end part, or the back side end part, and may partially close each open part. Needless to say, the shape of the blocking portion 220 is not limited, and the blocking portion 220 may be provided in the first shielding member 200.

  As described above, the air-core coil winding device 1 according to the present embodiment has the winding core 20 around which the wire material to be a coil is wound and the winding position CP where the wire rod is wound around the winding core 20. And a first shielding member 200 and a second shielding member 210 disposed so as to sandwich at least a part of the outer peripheral region of the winding position CP from both sides. .

  Further, in the winding method of the air-core coil according to the present embodiment, at least a part of the outer peripheral region of the winding position CP where the wire to be a coil is wound around the winding core 20 is divided into two shielding members (first shielding The wire wound around the core 20 is heated while being sandwiched from both sides by the member 200 and the second shielding member 210).

  By adopting such a configuration, it is possible to suppress the hot air blown from the heating device 60 from diffusing to the surroundings and to suppress the flow of air around the winding device 1 from flowing into the winding position CP. It becomes possible. This not only improves the thermal efficiency of heating, but also allows the wire to be heated to a higher temperature and in a substantially uniform state than before, thus preventing the occurrence of turbulence while increasing the adhesion between the wires. It becomes possible.

  In addition, at least one of the first shielding member 200 and the second shielding member 210 is arranged to be movable in a direction away from the winding position CP. By doing in this way, while supplying a wire etc. more efficiently and stably than before, while being able to supply a wire smoothly and taking out a coil, it is possible to improve maintainability around the core 20. Can do.

  Further, the first shielding member 200 is disposed on one side in the axial direction of the core 20, and the second shielding member 210 is disposed on the other side in the axial direction of the core 20. By doing in this way, the 1st shielding member 200 and the 2nd shielding member 210 can be arrange | positioned efficiently, without interfering with the surrounding various members, movable objects, etc. Thereby, the area | region pinched | interposed into the 1st shielding member 200 and the 2nd shielding member 210 can be set suitably, and efficient and stable heating states, such as a wire, can be obtained. Further, it is possible to effectively prevent hot air from flowing toward the bearings of the fixed-side spindle 32 and the movable-side spindle 42, and to prevent troubles caused by heating these bearings.

  In addition, the winding device 1 is arranged on one side in the axial direction of the winding core 20, and has a first jig 30 that determines a traverse origin when winding the wire, and a shaft on the other side in the axial direction of the winding core 20. And a second jig 40 that determines the winding width of the wire, and the second shielding member 210 reciprocates in the axial direction of the core 20 together with the second jig 40. It is arranged to be movable. By doing so, the space efficiency of the winding device 1 is improved by avoiding interference between the second shielding member 210 and other members, the tact time of coil manufacturing is shortened, and the production efficiency is improved. Can do.

  The first shielding member 200 is arranged such that the first cutout portion 200a is formed, and at least a part of the first jig 30 is located in the first cutout portion 200a. The shielding member 210 is formed such that the second notch portion 210a is formed and at least a part of the second jig 40 is located in the second notch portion 210a. By doing so, it is possible to shield the outer peripheral region of the winding position CP over as wide a range as possible while appropriately reducing the distance between the first shielding member 200 and the second shielding member 210. Become.

  In addition, the shielding function that the first jig 30 and the second jig 40 originally had to some extent can be expanded further outward by the first shielding member 200 and the second shielding member 210. Efficient shielding can be performed. Furthermore, the first jig 30 and the second jig can be brought into contact with the first jig 30 and the second jig 40 while the hot air from the heating device 60 is appropriately dispersed. The temperature control of 40 can be performed with high accuracy.

  Moreover, the 1st shielding member 200 and the 2nd shielding member 210 are arrange | positioned so that the hot air blowing port 62 of the heating apparatus 60 may be pinched | interposed from both sides during winding of a wire. By doing in this way, a hot air can be reliably guide | induced toward winding position CP, while heating a wire etc. efficiently, it can prevent that the part which should not be heated is heated.

  Further, the first shielding member 200 and the second shielding member 210 are opened so that at least a part above, below or on the side of the region sandwiched between the first shielding member 200 and the second shielding member 210 is opened. It is configured. By doing in this way, hot air can be made to flow out in a state in which it is appropriately dispersed in an appropriate direction after it is appropriately retained in the region sandwiched between the first shielding member 200 and the second shielding member 210. . In particular, by providing the closing portion 220 and adjusting the position and area of the open portion from which hot air flows out, the heating state of the wire or the like can be appropriately adjusted.

  The winding device 1 also includes an adjustment mechanism (fixing holes 12a and 16a and fixing screws 204 and 214) that can adjust the positions of the first shielding member 200 and the second shielding member 210 during winding of the wire. ing. By doing in this way, since it becomes possible to set appropriately the distance between the 1st shielding member 200 and the 2nd shielding member 210 at the time of winding of a wire, according to the winding width of a wire. While adjusting the position of the 1st shielding member 200 and the 2nd shielding member 210, the heating state of a wire etc. can be adjusted suitably.

  In the present embodiment, the example in which the first shielding member 200 and the second shielding member 210 are disposed so as to sandwich the winding position CP from the left-right direction in the front view is shown, but the present invention is limited to this. Instead, the first shielding member 200 and the second shielding member 210 may be arranged so as to sandwich the winding position CP from the vertical direction or the front-rear direction.

  In addition, the size of the region sandwiched between the first shielding member 200 and the second shielding member 210 is not particularly limited, and other members such as shielding only the vicinity of the outlet 62 of the heating device 60, for example. It can set suitably according to the structure of this, the manufacturing conditions of a coil, etc. Moreover, the 1st shielding member 200 and the 2nd shielding member 210 may each be comprised from a some member, and may make it possible to adjust the position of a some member separately in this case. .

  In the present embodiment, the example in which the second jig 40 and the second shielding member 210 are both moved by the tail plate moving motor 102 has been described. However, a moving device dedicated to the second shielding member 210 is provided. May be. Further, in this case, the second shielding member 210 may be retracted in a direction different from that of the second jig 40. Further, either one or both of the first shielding member 200 and the second shielding member 210 may be retracted together with the heating device 60.

  Moreover, although the example of the heating apparatus 60 which blows off hot air from one blowing outlet 62 was shown in this embodiment, the heating apparatus 60 may be provided with a plurality of blowing openings 62, and a plurality of blowing openings 62 may be provided. The heating device 60 may be provided in the winding device 1. Furthermore, the heating device 60 may be of other types such as a ceramic heater or an infrared heater.

  Although the embodiment of the present invention has been described above, the winding device and winding method for the air-core coil of the present invention are not limited to the above-described embodiment, and do not depart from the gist of the present invention. Of course, various changes can be made.

  The winding device and winding method of the air-core coil of the present invention can be used in the field of winding various coils other than the air-core coil.

DESCRIPTION OF SYMBOLS 1 Winding apparatus of an air core coil 12a Fixed hole of a fixed side bearing part 16a Fixed hole of a tail plate 20 Winding core 30 1st jig | tool 40 2nd jig | tool 60 Heating apparatus 62 Air outlet 200 1st shielding member 200a First cutout portion 204 Fixing screw for first shielding member 210 Second shielding member 210a Second notch portion 214 Fixing screw for second shielding member CP Winding position

Claims (9)

A core around which a wire to be a coil is wound;
A heating device for supplying heat toward a winding position where the wire is wound around the core;
A first shielding member and a second shielding member arranged so as to sandwich at least a part of the outer peripheral region of the winding position from both sides,
Air core coil winding device. At least one of the first shielding member and the second shielding member is arranged to be movable in a direction away from the winding position.
The winding device for an air-core coil according to claim 1. The first shielding member is disposed on one side in the axial direction of the core,
The second shielding member is disposed on the other side in the axial direction of the core,
The winding device for an air-core coil according to claim 1 or 2. A first jig which is arranged on one side in the axial direction of the winding core and determines a traverse origin when winding the wire;
A second jig that is arranged so as to be reciprocally movable in the axial direction on the other side in the axial direction of the winding core, and determines a winding width of the wire,
The second shielding member is disposed so as to be capable of reciprocating in the axial direction of the core together with the second jig,
The winding device of the air-core coil according to claim 3. The first shielding member is arranged such that a first notch is formed, and at least a part of the first jig is located in the first notch,
The second shielding member is formed such that a second notch is formed and at least a part of the second jig is positioned in the second notch.
The winding device for an air-core coil according to claim 4. The first shielding member and the second shielding member are arranged so as to sandwich the hot air outlet of the heating device from both sides during winding of the wire.
The winding device for an air-core coil according to any one of claims 1 to 5. The first shielding member and the second shielding member are configured such that at least a part of the upper, lower, or side of the region sandwiched between the first shielding member and the second shielding member is opened. It is characterized by
The winding device for an air-core coil according to any one of claims 1 to 6. An adjustment mechanism capable of adjusting the positions of the first shielding member and the second shielding member during winding of the wire is provided,
The winding device for an air-core coil according to any one of claims 1 to 7.   Heating the wire wound around the core in a state where at least a part of the outer peripheral region of the winding position where the wire serving as a coil is wound around the core is sandwiched from both sides by two shielding members. An air core coil winding method, which is characterized.

Images