KR101185781B1 - Zig for manufacturing for the induct coil and the manufacturing apparatus using it - Google Patents

Abstract

The present invention relates to a jig for winding and manufacturing an inductor coil mounted on a printed circuit board and the like and a manufacturing apparatus for manufacturing the inductor coil using the same. To this end, a gripping portion having a gripping surface for holding a winding is formed, one end is in contact with the center of the gripping surface, and a winding is continuously wound on the outer circumferential surface thereof so as to be slidably coupled in the longitudinal direction of the cylindrical portion and the cylindrical portion. And a pressing part for determining a width of the inductor coil wound around the cylindrical part. As a result, inductor coils of various sizes having different winding counts may be manufactured according to the gap adjustment between the pressing part and the gripping part. In addition, according to the thickness of the windings and the size of the inner diameter of the inductor coil, by replacing the jig set for manufacturing the inductor coil made of the cylindrical portion, the holding portion and the pressing portion, it is possible to manufacture inductor coils of various sizes.

Description

Zig for manufacturing inductor coil and apparatus for manufacturing inductor coil using same

The present invention relates to a jig for winding and manufacturing an inductor coil mounted on a printed circuit board and the like and a manufacturing apparatus for manufacturing the inductor coil using the same.

The inductor coil is made of a conductive coil in which at least one layer is rolled into a cylindrical shape. A non-conductive enamel coating layer is formed on the outer circumferential surface of the conductive coil to prevent energization by contact with neighboring conductive coils.

The inductor coil is an electronic device whose volume is difficult to reduce due to its cylindrical shape. In order to reduce the volume of the inductor coil, an inductor coil formed of multiple layers is manufactured.

In the inductor coil made of a multilayer, two layers of conductive coils are formed successively on one layer formed by rolling the conductive coils in a cylindrical shape, and three or more layers are formed according to a selection.

The multilayer inductor coil according to the prior art has a difference in the number of coil turns of one layer and the number of turns of two layers formed thereon. This is because the conductive coils curled on both ends of the two layers easily escape from the coils of the first layer when the coil winding numbers of the first and second layers are identically stacked. Therefore, in order for the conductive coils of each layer to be stably stacked, the conductive coils should be formed with less winding number than the winding number of the base layer on which the conductive coils are wound. As a result, the number of windings of the inductor coil having a plurality of layers decreases toward the upper layer, so that the volume increases in order to manufacture the inductor coil according to a predetermined capacity.

In addition, the multilayer inductor coil manufactured by the prior art has a problem that the outer conductive coil is easily released by the restoring force.

In addition, the winding device of the conductive coil according to the prior art has a disadvantage that can not be used in the manufacture of inductor coils having various sizes.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has an object of making it possible to manufacture inductor coils of various sizes in which the number of turns and the multilayers to be wound are different.

In addition, it has the purpose of achieving integration of the inductor coil manufactured in a multilayer.

It also has the purpose to prevent loosening of the windings stacked in multiple layers.

In accordance with an aspect of the present invention, a gripping portion having a gripping surface for gripping a winding is formed, one end of which is in contact with a center of the gripping surface, and a cylindrical portion having an inductor coil wound around the outer circumferential surface to form a coil. A jig for manufacturing an inductor coil including a pressing part for determining a width of an inductor coil wound around the cylindrical part and slidably coupled in a longitudinal direction of the cylindrical part is provided.

In addition, the cylindrical portion may contact the gripping portion elastically.

In addition, a gripping portion having a gripping surface for gripping a winding, one end of which is in contact with a center of the gripping surface, and a winding portion of which is continuously wound on an outer circumferential surface thereof, and a cylindrical portion in which an inductor coil is formed, and the cylindrical portion is slidable in the longitudinal direction. And an inductor coil manufacturing jig including a pressing part for supporting an inductor coil wound around the cylindrical part, and the holding part and the pressing part are rotated in the same direction using the central axis of the cylindrical part as a rotation axis. Present a coil manufacturing apparatus.

In addition, the winding feeder for supplying the winding may reciprocate between the holding portion and the pressing portion placed in a spaced apart position.

Further, when the winding is first wound on the cylindrical portion, the winding may be bitten by the pressing portion which presses against the gripping portion.

In addition, the cylindrical portion may be rotated in the same direction as the pressing portion.

In addition, the winding wound on the cylindrical portion may be wound around the cylindrical portion in a state heated by a heater.

In addition, as the cylindrical portion is slidably moved with respect to the pressing portion, the inductor coil wound around the outer circumferential surface of the cylindrical portion may be discharged.

According to the exemplary embodiment of the present invention, the inductor coil of various sizes having different winding numbers may be manufactured by adjusting the gap between the pressing part and the gripping part. In addition, according to the thickness of the windings and the size of the inner diameter of the inductor coil, by replacing the jig set for manufacturing the inductor coil made of the cylindrical portion, the holding portion and the pressing portion, it is possible to manufacture inductor coils of various sizes.

In addition, since the constant width is maintained by the gripping surface and the pressing portion of the gripping portion, the winding is wound with a constant number of turns for each layer, so that the inductor coil in which the winding of the inductor coil is intensive can be manufactured. Therefore, the effect of providing a high performance inductor coil while reducing the volume.

In addition, by the adhesion of the enamel layer by heating has the effect of preventing the unwinding of the winding consisting of a multi-layer.

In addition, the inductor coil to which the enamel layer is adhered by heating can be easily detached from the jig for manufacturing the inductor coil, thereby enabling the automated production.

1 is an exploded perspective view of a jig for manufacturing an inductor coil according to an exemplary embodiment of the present invention.
2 is a cross-sectional view of the jig for manufacturing the inductor coil shown in FIG. 1.
3 is a perspective view showing a state of use of the jig for manufacturing the inductor coil shown in FIG.
4 is a perspective view showing another use state of the jig for manufacturing the inductor coil shown in FIG.
5 is a front view of the use state shown in FIG.
6 is a front view showing still another use state of the jig for manufacturing the inductor coil shown in FIG.
7 is a cross-sectional view of an inductor coil made in accordance with an embodiment of the present invention.
8 is a schematic diagram of an inductor coil manufacturing apparatus according to an embodiment of the present invention.
9 is a cross-sectional view of a portion of an inductor coil manufacturing apparatus according to an embodiment of the present invention.
10 is a cross-sectional view showing the discharge process of the inductor coil according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described the configuration, function and operation of the jig for producing an inductor coil and the apparatus for manufacturing an inductor coil using the same. However, reference numerals for components having the same or similar functions shall be used in the same manner.

1 is an exploded perspective view of a jig for manufacturing an inductor coil according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the jig for manufacturing an inductor coil shown in FIG. 1.

The jig 100 for manufacturing an inductor coil according to an embodiment of the present invention includes a gripping portion 1, a cylindrical portion 2, and a pressing portion 3.

The gripping portion 1 is formed with a gripping surface 11 substantially perpendicular to the supply direction of the winding forming the inductor coil. The gripping surface 11 may be further provided with a protrusion 111 for gripping the windings. Such protrusions may not be provided if the conditions under which the winding is pressed against the gripping surface by the pressing part described later are satisfied.

The protrusion 111 protrudes at a position spaced apart from the outer circumferential surface of the cylindrical portion 2 in contact with the gripping surface 11. The winding supplied between the protrusion 111 and the cylindrical portion 2 is caught by the protrusion 111 at the time of rotation of the gripping portion 1.

On the other hand, the opposite side of the projection 111 may be further provided with an inclined surface 112 protruding from the gripping surface 11 in the coupling direction (the direction perpendicular to the gripping surface) of the cylindrical portion (2). The maximum protruding length of the inclined surface 112 and the protruding length of the protrusion 111 may be formed to be the same or shorter than the length corresponding to the thickness of the winding.

On the other hand, the cylindrical portion 2 has the shape of a cylindrical pin, one end thereof may be in contact with the center of the gripping surface (11). On the outer circumferential surface of the cylindrical portion 2, the supplied winding is wound while forming a cylinder to produce an inductor coil.

On the other hand, the pressing part 3 is a member which is slidably engaged in the longitudinal direction of the cylindrical part. The pressing part 3 may have a cylindrical shape in which a fitting hole 31 is formed at the center. At this time, the fitting hole 31 is different from the inner diameter of one end and the other end, the jaw 311 may be formed in the middle, the cylindrical portion 2 is to be stepped so that the middle portion is caught by the jaw 311 Formed.

When the cylindrical portion 2 is in contact with the gripping surface 11, the pressing portion 3 is fixed at a predetermined distance from the gripping surface 11, thereby determining the length of the winding to be wound on the cylindrical portion 2. It is. That is, the distance between the gripping surface and one end of the pressing portion becomes the width of the manufactured inductor coil (see FIG. 7W). The width of the inductor coil determines the winding number of the winding according to the diameter of the winding. That is, it becomes possible to manufacture an inductor coil of which the width varies depending on the change in the fixed position of the pressing portion.

In addition, by providing a plurality of cylindrical portions having different diameters, and a plurality of holding portions and pressing portions having associated sizes such as fitting holes, etc., it is possible to manufacture inductor coils having different winding thicknesses and inner diameters.

Further, by varying the number of windings stacked, the inductor coil having one layer to the inductor coil having a plurality of layers can be manufactured.

8 is a schematic diagram of an inductor coil manufacturing apparatus according to an embodiment of the present invention, and FIG. 9 is a cross-sectional view of a part of the inductor coil manufacturing apparatus according to an embodiment of the present invention.

The inductor coil manufacturing apparatus 200 according to the embodiment of the present invention includes a jig 100 for manufacturing the inductor coil of the above-described configuration, and rotates the holding part 1, the cylindrical part 2 and the pressing part 3. Or a mechanism for slidingly moving on the axis of rotation.

In addition, a winding feeder 91 for supplying a winding may be further included, and a heater 92 for heating the winding may be further included. In addition, a cutter 93 for cutting the winding after completion of manufacturing the inductor coil may be further included. In addition, a controller (not shown) may be further provided for controlling the operation of these configurations.

By the mechanism, the gripping portion 1 and the pressing portion 3 are rotatable using the central axis of the cylindrical portion as the rotation axis. In addition, the cylindrical portion 2 can also be configured to be rotatable like the pressing portion 3.

The mechanism may consist of automated devices of known configuration. Specifically, the holding part 1 is connected to the first motor 41 which provides the rotational force, and is also connected to the first slider 51 which enables the reciprocating sliding movement on a straight line along the axial direction. In this case, the first motor may control the rotation speed and the rotation direction, and the first slider may be formed of an LM guide or an actuator.

Meanwhile, the pressing part 3 is coupled to the first shaft 6 and positioned on the same axis as the holding part 1. The first shaft 6 is connected to a second motor 42 that provides rotational force, and further includes a second slider 52 that allows the first shaft 6 to linearly reciprocate sliding on the central axis. That is, by the second motor 42 and the second slider 52, the pressing portion 3 and the first shaft 6 are rotated using the central axis of the cylindrical portion as the rotation axis, or are slidable along the central axis.

Further, there is further provided a third slider 53 for allowing the cylindrical portion 2 to linearly reciprocate sliding on the central axis. By the third slider 53, the cylindrical portion 2 is slidably movable independently of the pressing portion 3 on the central axis. In this case, the third slider 53 may be connected to the cylindrical portion 2 and may be configured to be connected to a second shaft (see 7 of FIG. 9) provided in the first shaft 6. Alternatively, although not shown, a motor for allowing the cylindrical portion to rotate independently of the pressing portion and a slider for sliding independently of the pressing portion may be mounted.

In this case, the second motor may be the same motor as the first motor, and the second and third sliders may be configured with the same slider as the first slider.

Referring to FIG. 9, there is shown a configuration for rotating together with the pressing part 3 without a separate motor for rotating the cylindrical part 2.

The first shaft 6 is mounted to the rear end of the pressing portion 3. The through hole 61 is formed in the first shaft 6. A cap 62 is mounted on one end of the first shaft 6, and the pressing portion 3 is detachably fixed to the cap 62 by a screw. In addition, a long hole 63 is formed at the end of the first shaft 6 in the longitudinal direction.

The restraint bundle 8 is detachably coupled to the end of the cylindrical portion 2, and the restraint bundle 8 is mounted inside the first shaft 6. At this time, as the key 81 protruding from the outer circumferential surface of the restraint bundle 8 is inserted into the long hole 63, the restraint bundle 8 and the pressing part 3 are restrained by the key. When rotating, they rotate together. In addition, the pressing part 3 and the restraint bundle 8 along the longitudinal direction of the long hole 63 are slidably movable in the longitudinal direction of the first shaft 6.

In addition, the rear end of the restraint bundle 8 is coupled to the pin 82, and the pin 82 is coupled to the inside of the first shaft 6 in a state in which the pin 82 is elastically supported by the spring 83. Slidably coupled to).

The key 821 protruding outward from the rear end of the pin 82 is inserted into the long hole 71 formed in the second shaft 7. In addition, as the spring 83 is mounted at the rear end of the pin 82, the cylindrical portion 2 is elastically supported.

Referring back to FIG. 8, the winding feeder 91 is a device that supplies a winding at a constant speed. The winding C unwinded from the drum D is supplied to the inductor coil manufacturing jig 100 at a constant speed by the winding feeder 91. At this time, the winding feeder 91 is coupled to the fourth slider 54 that can linearly slide in a direction parallel to the central axis.

On the other hand, the heater 92 includes an air pump 921 for supplying hot air, a heat supply unit 922 and a hot air conduit 923, the end of the conduit 923 heats the winding in a state away from the winding It is configured to apply.

Hereinafter, an operation of an inductor coil manufacturing jig and an inductor coil manufacturing apparatus including the same according to an embodiment of the present invention will be described with reference to the drawings.

By the operation of the sliders, the gripping portion 1, the pressing portion 3, and the cylindrical portion 2, as shown in Figure 2, the cylindrical portion 2 on the holding surface 11 of the gripping portion 1 End of the contact portion, one end of the pressing portion 3 is moved to a position spaced apart by the width of the gripping surface 11 and the inductor coil. At this time, a groove (not shown) may be further formed at the center of the gripping surface into which the end portion of the cylindrical portion is inserted. As the end of the cylindrical part is placed in the groove, the cylindrical part can be stably gripped at the center of the gripping surface when the gripping part is rotated.

On the other hand, the cylindrical portion 2 is elastically pressed by the spring 83 can be retracted elastically in contact with the gripping surface (11). That is, in FIG. 8, when the first and third sliders 51 and 53 are moved close to each other and the contacting gripping portion 1 and the cylindrical portion 2 are in contact with each other during the operation control of the sliders, the cylindrical portion 2 is gripped. It may be excessively pressurized by (11), in which case the spring (83) mounted on the second slider (52) is compressed to accommodate the pressure applied to the cylindrical portion (2). Therefore, the cylindrical portion can be stably contacted with the gripping surface without fear of breaking the cylindrical portion.

Referring to Figure 3, the winding supplied from the winding feeder 91 is supplied from the top to the bottom. The winding feeder 91 is in a sliding movement state so that the supplied winding contacts the gripping surface 11. The winding C is supplied between the protrusion 111 and the cylindrical portion 2. Subsequently, the windings of which one side is caught by the protrusions 111 are started to be wound on the outer circumferential surface of the cylindrical portion 2 as the gripper 1 rotates. At this time, one end surface of the pressing part 3 may be rotated in the same manner as the gripper at a position away from the gripper, or may press the winding to approach the gripper as described below.

On the other hand, in consideration of the rotational speed of the gripper 1 and the thickness of the winding, the winding feeder is slidably moved toward the pressing part by the thickness of the winding every one rotation of the gripper. In addition, after the winding touches the pressing part, the winding is again moved toward the gripping surface at the same speed as above, and the winding is wound on the first layer formed by the windings wound on the cylindrical portion to form two layers. By the repetitive movement of the winding feeder, an inductor coil having a plurality of layers is manufactured.

The sliding movement of the winding feeder allows the winding to be wound in a cylindrical shape instead of being directly wound on the first wound winding.

4 shows a shape in which the winding C is wound on the circumferential surface of the cylindrical portion 2 by the inclined surface 112 formed on the gripping surface 11. The initial winding wound on the cylindrical portion 2 is moved along the inclined surface 112 in the longitudinal direction of the cylindrical portion 2. Therefore, it is possible to more reliably exclude that the newly supplied winding C interferes with the winding caught on the protrusion 111.

3 and 5, there may be further operation of the pressing part 3 which presses the winding when the winding C starts to be wound on the gripping surface 11. That is, when the winding C contacts the gripping surface 11, the pressing part 3 slides and presses the winding C to the gripping surface 11. As shown in FIG.

In this case, when the gripping surface is not provided with projections, or even if there are projections, the protruding length of the projections is shorter than the thickness of the windings, so that when the winding is difficult to be correctly grasped, the pressing unit presses the windings to the gripping surface to stabilize the initial winding of the windings. To make it happen. The bite of the winding by the movement of the pressing portion may be made until the winding is wound once or wound several times on the cylindrical portion. At this time, the pressing portion is controlled to be gradually separated from the gripping surface in accordance with the movement of the winding feeder.

The pressing part is then moved to a position spaced apart from the gripping surface by the width of the inductor coil.

6 and 7, a process of manufacturing an inductor coil of three layers is illustrated. The winding C is supplied at a constant speed by a winding feeder which is moved left and right, and is wound in turn on the outer circumferential surface of the cylindrical portion 2.

At this time, the holding part 1 and the pressing part 3 are rotated in the same direction with the central axis of the cylindrical part 2 as the rotation axis, so that the winding C contacting the holding part 1 or the pressing part 3 is It is possible to prevent wear in contact with each side.

In addition, since a constant width is maintained by one end surface of the gripping surface 11 and the pressing part 3, the supplied winding C has a constant number of windings within the provided interval so that each layer can be formed.

At this time, the inductor coil 300 laminated in three or more layers is easy to unwind the winding stacked on the outer side, in order to fix this, the heating enamel layer forming the outer circumferential surface of the winding (C) is wound up and wound to the winding outer circumferential surface of the lower layer The new winding can be bonded to it. The heating of this winding may be made of hot air by the heater described above. Alternatively, an adhesive may be used that dries quickly on the surface of the winding.

In this manner, when the windings are integrated, the cylindrical portion 2 also rotates in the same direction as the pressing portion 3, thereby preventing wear of the winding due to the contact between the winding C and the cylindrical portion 2. . In particular, when the windings are integrated with each other by heating, the enamel layer in contact with the cylindrical portion may peel off from the winding unless the cylindrical portion is rotated. Therefore, it is important to prevent the damage to the enamel layer by rotating the cylindrical part in the same direction as the pressing part.

10 shows the discharge process of the inductor coil.

After the winding of the winding is finished, the holding part 1 may be moved away from the inductor coil 300 by the first slider. As a result, the protrusion 111 is separated from the inductor coil 300. If the projection is not provided on the gripping surface, such movement of the gripping portion may be omitted.

On the other hand, the winding (C) extending from the winding feeder is cut with a cutter.

Thereafter, the cylindrical portion 2 is slid with respect to the pressing portion 3, and the inductor coil 300 wound around the outer circumferential surface of the cylindrical portion 2 is discharged. Specifically, the cylindrical portion 2 is moved into the fitting hole 31 of the pressing portion 3, so that the winding that has been in contact with the cylindrical portion by heating is separated from the cylindrical portion. The separated inductor coil falls down by gravity and is discharged to the outside.

Thereafter, the gripping portion, the cylindrical portion, and the pressing portion are moved to the position as shown in FIG. 2 again, and the following inductor coil is manufactured.

100: jig
DESCRIPTION OF SYMBOLS 1 Holding part 11 Holding surface 111 Protrusion 112 Inclined surface
2: cylindrical part
3: pressing part 31: fitting hole 311: jaw
200: manufacturing apparatus
41: first motor 42: second motor
51: first slider 52: second slider 53: third slider
54: fourth slider 6: first shaft 61: through hole
62: cap 63: long hole 7: the second shaft
71: hole 8: restraint 81: key 82: pin
821: key 83: spring 91: winding feeder
92: heater 921: air pump 822: heat supply
923: pipeline 93: cutter
300: induct coil
C: Winding W: Width D: Drum

Claims (8)

A gripping portion having a gripping surface for gripping a winding,
One end is in contact with the center of the gripping surface and the outer circumferential surface of the cylindrical portion is wound around the winding to form an inductor coil, and
Pressing part for slidably coupled in the longitudinal direction of the cylindrical portion to determine the width of the inductor coil wound around the cylindrical portion
Including
As the cylindrical portion is slid to the pressing portion, the inductor coil wound around the outer peripheral surface of the cylindrical portion is discharged
Jig for inductor coil manufacturing. In claim 1,
The jig for manufacturing an inductor coil in which the cylindrical portion elastically contacts the gripping portion. A gripping portion having a gripping surface for gripping a winding, one end of which is in contact with the center of the gripping surface, and an outer circumferential surface of the gripping portion continuously wound to form a inductor coil, and a cylindrical portion to be slidable in a longitudinal direction. Is coupled to the jig for manufacturing the inductor coil including a pressing portion for supporting the inductor coil wound around the cylindrical portion is mounted,
The gripping part and the pressing part are rotated in the same direction with the central axis of the cylindrical part as the rotation axis, and the cylindrical part is slid to the pressing part while the inductor coil wound around the outer peripheral surface of the cylindrical part is discharged.
Inductor coil manufacturing device. 4. The method of claim 3,
The winding feeder for supplying the winding
Inductor coil manufacturing apparatus for reciprocating between the pressing portion placed in a position spaced apart from the holding portion. 4. The method of claim 3,
And, when the winding is first wound on the cylindrical portion, the winding is bitten by the pressing portion which presses against the holding portion. 4. The method of claim 3,
The cylindrical portion is inductor coil manufacturing apparatus rotated in the same direction as the pressing portion. 4. The method of claim 3,
The winding wound on the cylindrical portion is an inductor coil manufacturing apparatus wound around the cylindrical portion in a state heated by a heater. delete

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