KR100532673B1 - SMD air coiling device - Google Patents

Abstract

SUMMARY OF THE INVENTION An object of the present invention is to provide a winding manufacturing apparatus for an SMD air coil, in which winding of the coil part and bending work at right angles to the lead part are accurate and manufacturing speed is very fast.

To this end, the present invention comprises a crimp for winding the horizontally supplied wire to the outer periphery to form a coil;

A cylindrical body accommodating the crimp so as to protrude only when the crimp is wound around the wire to form a coil;

A wire clamp provided on an upper side of the cylindrical body so as to pivot around the hinge axis to pinch or unpinch the wire drawn horizontally in the direction perpendicular to the crimping axis to the tip end of the cylindrical body;

A first vertically formed on the distal end surface of the cylindrical body to contact the hole for receiving the crimp and guiding the protruded distal end portion of the wire to be bent at right angles while being protruded forward while being sandwiched by the wire clamp; Bending guide protrusion;

Sliding movement in the axial direction is fitted to the outer periphery of the cylindrical body, and when moving to the front end side of the cylindrical body by restraining the rear end portion of the wire clamp to be pressed down to release the pinching state of the wire, to the rear A clamp actuator for releasing the restraint state of the wire clamp upon retraction;

Elastic means for applying a force in a direction in which the wire clamp always clamps the wire;

Operating means operable to move the clamp actuator in an axial direction;

A rotary driving device for rotating the cylindrical body;

A conveying device for axially moving the entire rotating device including the cylindrical body and the actuating means;

Lead portion bending device for lifting and lowering to force the wire tip to close contact with the first bent guide projection surface while bending down the wire tip protruding horizontally forward while being pinched by the wire clamp to bend at a right angle Wow;

The crimp insert is installed to be able to move in the axial line at the position facing the crimp, and the crimp is projected and the wire is wound around its outer circumference to form a coil and then transferred toward the crimp to accommodate the tip of the crimp. A secondary bending guide mechanism having a hole and pressing and fixing the side of the coil when receiving the crimp;

A cutting device that rotates the crimp to form a coil and cuts a wire to form a lead, and the lifting device moves up and down in a vertical direction so that the lead is bent at a right angle;

A second bending guide protrusion projecting perpendicularly to a front end face of the crimp insertion hole of the secondary bending guide mechanism so as to guide the lead portion on the coil side which is cut and lowered by the cutting device to be bent at a right angle. It is composed.

Description

Winding device for producing smd air coils {SMD air coiling device}

The present invention relates to a device for manufacturing a winding of an SMD air coil as an inductor mounted on a PCB substrate to make a resonant frequency.

Air coil refers to an inductor to create a resonant frequency. The wire wires through which current can flow can be rounded to a required diameter in a circular shape, stripped of the coating material on both ends of the lead, and coated with lead. Both leads are inserted into the holes and soldered to form a circuit.

However, the structure and mounting method of the air coil is disadvantageous in terms of productivity because it requires a lot of space on the PCB substrate and takes a lot of mounting work time.

For this reason, as shown in FIG. 13, the coil part 1 rounded like a spring, and the 1st and 2nd lead parts 2 and 3 extended to the both ends of the coil part 1 are comprised recently. However, the air coil 4 was fabricated in a structure in which the coating material at the ends of the first and second lead parts 2 and 3 was peeled off and lead was applied, and then bent in a direction perpendicular to the inside, and the air coil 4 was formed. When heat is applied to the lead portion (2) (3) bent at right angles to the designated circuit line portion on the PCB (5), the solder applied to the lead portion (2) (3) melts and the air coil (4) This PCB is to be mounted on the substrate (5).

Such an air coil is specifically called SMD (Surface mount device, which stands for Surface Mount Device), which refers to a technology for mounting and soldering surface mount components on the PCB board surface of electronic products, communication devices, and industrial equipment. In this way, it is not necessary to drill holes for inserting the leads 2 and 3 into the PCB 5, and the space for mounting parts and components is miniaturized, and the mounting work is easy and quick. Since the speed is greatly increased, recently, SMD air coils having a structure as shown in Fig. 13 are mainly used as inductors.

However, the SMD air coil 4 has to bend both ends of the lead parts 2 and 3 at right angles after forming the coil part. An automated dedicated machine for this has not yet been developed, and some developed dedicated machines It is pointed out that the provincial productivity is low.

Accordingly, the present invention has been proposed in view of the above-described objects, and its object is to provide a coil manufacturing apparatus for SMD air coils which is accurate in winding work of the coil part and the bending of the lead part at a right angle, and the manufacturing speed is very fast. have.

In order to achieve the above object, the present invention includes a crimp for winding a horizontally supplied wire to the outer periphery to form a coil;

A cylindrical body accommodating the crimp so as to protrude only when the crimp is wound around the wire to form a coil;

A wire clamp provided on an upper side of the cylindrical body so as to pivot around the hinge axis to pinch or unpinch the wire drawn horizontally in the direction perpendicular to the crimping axis to the tip end of the cylindrical body;

A right angled projecting tip portion (forming a first lead portion) of the wire, which is vertically formed on the front end surface of the cylindrical body so as to contact the hole for receiving the crimp and is projected forward while being sandwiched by the wire clamp. A first bending guide protrusion for guiding to bend;

Sliding movement in the axial direction is fitted to the outer circumference of the cylindrical body, and when moving to the front end side of the cylindrical body by restraining the rear end portion of the wire clamp to be pressed down to release the pinching state of the wire, and to the rear A clamp actuator for releasing the restraint state of the wire clamp upon retraction;

Elastic means for applying a force in a direction in which the wire clamp always clamps the wire;

Operating means operable to move the clamp actuator in an axial direction;

A rotary driving device for rotating the cylindrical body;

A conveying device for axially moving the entire rotating device including the cylindrical body and the actuating means;

Ascending and descending the wire tip (first lead portion) to be in close contact with the first bending guide projection surface while descending together by lowering the wire tip protruding horizontally forward while being sandwiched by the wire clamp. A lead bending device that operates;

The crimp insert is installed to be able to move in the axial line at the position facing the crimp, and the crimp is projected and the wire is wound around its outer circumference to form a coil and then transferred toward the crimp to accommodate the tip of the crimp. A secondary bending guide mechanism having a hole and pressing and fixing the side of the coil when receiving the crimp;

A cutting device configured to rotate the crimp to form a coil and cut a wire to form a second lead portion, and to move up and down in a vertical direction such that the second lead portion is bent at a right angle;

A second bending guide protrusion projecting perpendicularly to a front end face of the crimp insertion hole of the secondary bending guide mechanism to guide the second lead portion on the coil side which is cut and lowered by the cutting device to be bent at a right angle; It is configured to include.

Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

In FIG. 1, the wire material 6 supplied to manufacture the SMD air coil 4 is wound on the reel 7 by copper wire with insulation coating, and is drawn out while being horizontally stretched by the transfer rollers 8. Transferred.

The wire 6 passes through the enamel stripper 9 while being transported, and removes the coating at positions corresponding to the first and second lead portions 2 and 3 to be soldered to the SMD air coil 4. It is peeled every time, lead is applied to the stripped lead parts (2) and (3) while passing through the lead coating machine (10), and after removing the oil or wax residues attached to the wire while passing through the washing unit (11) Reaching the device 12, the winding work to the coil and the bending work of the lead part are performed.

The winding device 12 has a crimp 13 which winds up a horizontally supplied wire 6 to its outer circumference, which is located at right angles to the wire 6 and emerges in the axial direction. This is accommodated in the cylindrical body 14 possibly.

Compressed air acts on the space 15 in the cylindrical body 14 through the hose 16, and when the compressed air is supplied, the crimp 13 protrudes to the front end of the cylindrical body 14, and the compressed air Is released, it retracts by the elastic force of the return spring 17, and is immersed in the cylindrical body 14 inside.

The wire clamp 20 is installed on the upper end of the cylindrical body 14 by the hinge shaft 19 in the groove 18 formed by cutting a predetermined width in the axial direction to enable the seesaw rotation. The rear end of 20 is subjected to a force such that the front end of the wire clamp 20 (part sandwiching the wire) is always pressed by the elastic means, for example, the spring 21, in the direction of the central axis of the shaft 13. For the clamping of the wire 6, the tip of the wire clamp 20 protrudes slightly from the tip 22 of the cylindrical body 14.

In addition, the tip surface 22 of the cylindrical body 14 has a vertically thin first bending guide protrusion 24 protruding to contact the hole 23 for receiving the crimp 13 (wire clamp 20). ) Is the first bent guide projection 24 is formed on the opposite side of the entry direction when the wire 6 enters the upper side of the crimp 13, the wire ( 6) is sitting on the upper surface of the first bending guide projection (24).

In addition, a clamp actuator 25 is fitted on the outer circumference of the cylindrical body 14 to the rear of the wire clamp 20 so as to slide in the axial direction, and the clamp actuator 25 includes a plurality of guide bolts. It is constrained by the cylindrical body 14 by the 26, and the axial cylindrical hole 27 which receives the front-end | tip of the guide bolt 26 is provided, The guide bolt 26 in this cylindrical hole 27 is provided. A spring 28 is received which exerts a force on the clamp actuator 25 to always move backwards by firing against its head.

The clamp actuator 25 is moved in the axial direction by the actuating means 29. The actuating means 29 includes a lever mechanism 31 which rotates to push the flange 30 forward, and the lever thereof. Consists of an air cylinder 32 for operating the mechanism 31, may be configured as a solenoid operating mechanism of the on, off operation of the electrical system.

The rear end of the cylindrical body 14 extends rearward in a long direction from the side wall plate 33 fixedly mounted to seal the space 15, and the rotary shaft 34 is rotated by the bearing 35. It is supported as much as possible, and the rotary drive device 39 of the cylindrical body which consists of the reduction gears 36 and 37 and the motor 38 is provided in the apparatus box 40. As shown in FIG.

And the device box 40 for supporting all the above-mentioned device is along the axial direction by a conveying device 43 composed of a screw 41 and a screw rotary motor 42 horizontally installed along the direction of the crimp 13 It is configured to be moved.

A secondary bending guide mechanism 44 is installed at a front position facing the crimp 13 coaxially, and the secondary bending guide mechanism 44 is a quadrilateral having a crimp insertion hole 45. A coil pressing member 46 having a cross-sectional shape, and an air cylinder 47 for transferring the coil pressing member 46 in the axial direction, and a front end surface of the coil pressing member 46 of the secondary bending guide mechanism. 48, the second bending guide protrusion 49 protrudes in a vertically thin pin shape in contact with the crimp insertion hole 45 in the same shape as the first bending guide protrusion 24.

The second bending guide protrusion 49 is formed on the side where the installation position is opposite to that of the first bending guide protrusion 24, that is, the wire 6 enters.

The wire 6 is supplied through the guide pipe 50, the tip of the guide pipe 50 allows the passage of the cutting device described later between the side of the coil pressing member 46 and the side 51 As close to the center axis as possible to leave a space to, the front end surface 52 of the guide pipe 50 serves as a wire cutting mold together with a cutting device.

The upper side of the guide pipe 50, the cutting device 53 is installed to be movable in the vertical direction by the air cylinder 54, the blade portion 55 of the distal end of the cutting device 53 is a guide pipe 50 It is formed as a vertical surface 56 so as to be lowered while rubbing the front end surface 52 of the () and the opposite side is formed of an inclined surface 57 and a vertical surface (58).

In addition, the outer surface 58 vertically extended along the inclined surface 57 at the lower end of the blade portion 55 has a wire bending guide groove 59 formed in a slit shape having a width about the diameter of the wire toward the upper side. Formed.

On the opposite side of the guide pipe 50 with respect to the cylindrical body 14, a lead part bending device 62 equipped with a roller 61 rotatable by a hinge shaft 60 is provided for the operation of the air cylinder 63. It is installed to move up and down from the upper side to the lower side of the cylindrical body 14, the roller 61 is configured to pass while almost passing the first bending guide projections 24 during the lifting and lowering.

The operation of the present invention will be described below.

The wire 6 wound on the reel 7 is drawn out horizontally in accordance with the guidance of the transfer rollers 8 and is continuously supplied to the front side (the winding device side).

The wire 6 is stripped at regular intervals by the lengths of the first and second lead portions 2 and 3 at both ends thereof except for the portion forming the coil portion 1 during the transfer, and the stripped lead Solder is applied to the parts 2 and 3 while passing the lead applicator 10, and the wires 6 washed while passing through the cleaning part 11 pass through the wire intermittent transfer device 64.

The wire intermittent transfer device 64 is to pinch the wire (6) to move forward by a predetermined pitch (total length of the SMD air coil), and then release the pinch of the wire (6) to repeat the process of returning to the original. In this way, whenever the SMD air coils 4 are manufactured one by one, the wire 6 that is intermittently transferred is drawn out through the guide pipe 50.

At the same time, the conveying device 43 is driven and the entire device box 40 is conveyed to the forward working position by the screw 41 rotation. At this time, the distal end face of the cylindrical body 14 is almost close to the horizontal line of the wire 6. Compressed air is then introduced into the space 15 in the cylindrical body 14 through the hose 16, and the crimp 13 is pushed while compressing the spring 17 to protrude in front of the cylindrical body 14.

At the same time, the air cylinder 32 of the actuating means 29 is operated so that the lever mechanism 31 rotates to push the clamp actuator 25 forward.

The clamp actuator 25 subjected to the transfer force by the lever mechanism 31 slides forward along the outer circumferential surface of the cylindrical body 14 while compressing the spring 28, and the clamp actuator 25 is wire clamped. The pressing projection (20A, which extends outward than the inner diameter of the clamp actuator) projecting at the rear end of the press (20) is pressed to be pushed into the inner diameter portion thereof.

As a result, the wire clamp 20 is pivoted about the hinge axis 19 about its center axis so that the wire clamping portion 20B (referring to the end portion for clamping the wire) is lifted upward.

In this state, the wire 6 conveyed by the intermittent transfer device 64 enters and passes through the lower portion of the wire clamping portion 20B of the wire clamp 19 to the upper surface of the first bending guide protrusion 24. It is transported to protrude forward by a certain length (the length of the lead part) and then stopped (as the wire intermittent feed device 64 is stopped in the state of being advanced by the designed maximum stroke distance), and the next operating means 29 is reversed. As the clamp actuator 25 is retracted by the spring 28 shot that has been compressed, the wire clamp 20 pushes the rear end by the spring 21 shot when the clamp actuator is released from the wire clamp 20. Raised and rotated accordingly, the tip of the wire clamp 20 is lowered so that the wire clamping portion 20B clamps the wire 6.

When the wire 6 is clamped by the wire clamp 20, the air cylinder 63 is operated to lower the lead portion bending device 62, and the roller 61 at the front end is vertical in accordance with the lowering. While passing through the first bending guide protrusions 24, the wires are placed on the vertical side of the first bending guide protrusions 24 while simultaneously lowering the tip (part of the first lead portion) of the wire 6 in the protruding state. The tip of the protruding part is pushed.

In this way, the wire 6 in the horizontal state and the first bent guide protrusion 24 form a right angle, and the tip (first lead portion) of the wire 6 is bent at the upper end point of the first bent guide protrusion 24. It is bent at 90 degrees.

Next, the rotary drive device 39 is driven to rotate the cylindrical body 14 and the crimp 13, and at the same time, the motor 42 is driven to rotate by a predetermined pitch (the entire wound width of the coil part). The cylindrical body 14 in a state is conveyed backward.

In this way, the wire 6 clamped by the wire clamp 20 is wound on the outer circumference of the crimp 13 according to the rotation of the crimp 13 (rotation by the number of turns of the coil), and the crimp in proportion to the winding speed ( Since the 13) moves backwards at a constant speed (the movement distance is the width of the completed coil), the wire 6 is continuously wound on the outer circumference of the crimp 13 in a coil shape like a spring.

In this manner, when the winding operation of the coil unit 1 is finished, the driving of the rotary drive unit 39 is stopped. In this state, the first lead unit 2 which is sandwiched by the wire clamp 20 and bent at right angles is It will be in a 180 ° symmetry position as originally formed. Next time, the secondary bending guide mechanism 44 is operated to transfer the coil pressing member 46 to approach the crimp 13.

The coil crimping member 46 is conveyed until the front end of the crimping 13 is inserted into the crimp insertion hole 45. The coil section in which the front end surface 48 of the coil crimping member 46 is wound on the crimping 13 is wound. It is conveyed until it presses against the side end surface of (1).

Accordingly, the coil part is fixed by the side pressure received from the coil press member 46, and the wire 6 is in a state of passing through the upper surface of the second bending guide protrusion 49. The next time the air cylinder 54 is operated, the cutting device 53 is lowered. The cutting device 53 cuts the wire 6 while lowering the front end surface 52 of the guide pipe 50 as a single member of the scissors, and when the cutting device 53 descends, the cutting device 53 is cut. The second lead portion 3 left on the coil portion 1 side by the lowering along the guide of the groove 59 of the inclined surface 57 gradually increases the bending angle, the vertical of the cutting device 53 When the side surface 58 passes through the second bending guide protrusion 49 at a distance equal to the wire diameter, the lead portion 3 is completely bent at a right angle.

The next moment the cutting device 53 is raised to its original position again, the secondary bending guide mechanism 44 is retracted again, the air cylinder 32 of the operating means 29 is operated to operate the clamp actuator 25 Pressing the wire clamp 20 to advance to release the pinching state of the wire. At the same time, as the compressed air pressure acting on the space 15 is released, the crimp 13 is immersed into the cylindrical body 14 by the spring 17 impingement, and the finished air coil 4 loses its bearing capacity. It is dropped and discharged. In addition, the feeder 43 is driven so that the entire rotary device including the actuator moves backward to return to the home position (or when the home position is set to the current position, it stands by in the stopped state and moves forward in the next work).

Next, in order to manufacture a new SMD air coil, the cylindrical body 14 is moved to the working position and the wire intermittent transfer device 64, which is returned to the reverse position, is operated again to lower the wire 6 by lowering the narrowing region 67. When the pinch is conveyed to the winding device 12 side, the wire 6 is drawn out from the tip of the guide pipe 50. At the same time, the actuating means 29 are driven to move the clamp actuator 25 forward and thus the wire clamp 20 is rotated to open the mouth. The compressed air is supplied to the space 15 so that the crimp 13 is cylindrical. It protrudes from (14).

As a result, the wire 6 to be fed and fed is projected past the front end of the open wire clamp 20 and the top surface of the first bending guide protrusion 24, and the wire intermittent feeder 64 reaches the designed stroke distance. When the operation is stopped, the wire clamp 20 is then automatically produced SMD air coil continuously by repeating the above-described process in the wire clamping and coil winding process such as clamping the wire and bending of the lead portion. .

The SMD coil manufactured as described above is bonded to a separate Keria tape, and the Keria tape is wound on the reel, and then supplied to the customer, and the worker removes the air coils from the tape one by one and mounts them on the PCB board.

As described above, the present invention can automatically bend the lead portions, which are both terminals of the coil, at right angles to the coil side when manufacturing the SMD air coil, so that the overall size of the SMD air coil is reduced and the installation area on the PCB substrate is reduced. The air coil can be mounted by simply applying heat to the PCB board without drilling the lead insertion hole, thereby greatly improving the production and ease of use of the air coil.

1 is a device diagram showing an overview of the entire process for the manufacture of the winding of the SMD air coil according to the present invention

2 is a view showing the winding manufacturing apparatus of the SMD air coil according to the present invention.

Figure 3 is a front view showing the operation structure of the cylindrical front end portion of the main portion of the present invention

Figure 4 is a plan view showing the operation structure of the cylindrical tip portion that is the main configuration of the present invention

Figure 5 is a side view showing the operation structure of the cylindrical front end portion of the main configuration of the present invention

Figure 6 shows the device in the axial direction of the present invention.

7 is a schematic view showing the apparatus of the present invention in plan view;

8 is a view showing a state immediately before the bending forming operation of the lead portion of the present invention.

9 is a detailed cross-sectional view of the coil crimping member of the present invention.

10 is a view for showing the final cutting and bending operation state of the present invention

11 is a perspective view of a cutting device of the present invention

12 is a process chart showing the whole process of the winding and bending work of the SMD air coil according to the present invention.

13 is a view showing an SMD air coil

14 is a view of mounting the SMD air coil on the PCB board

※ Explanation of codes for main parts of drawing

1: coil part 2,3: lead part

4: SMD air coil 6: Wire

7: Reel 8: Feed Roller

9: stripping machine 10: lead coating machine

11: cleaning unit 12: winding device

13: crimp 14: cylindrical body

15: space 16: hose

17: return spring 18: groove

19: hinge shaft 20: wire clamp

20A: Pressing protrusion 20B: Wire clamping part

21: elastic means 22: end surface

13: hole 24: first bending guide protrusion

25: clamp actuator 26: guide bolt

27: cylinder 28: spring

29: operating means 30: flange

31 lever mechanism 32 air cylinder

33 side wall plate 34 rotation axis

35: bearing 36,37: gear

38: motor 39: rotary drive device

40: device box 41: screw

42: motor 43: feeder

44: secondary bending guide mechanism 45: crimp insertion hole

46: coil pressing member 47: air cylinder

48: front end 49: second bending guide protrusion

50: guide pipe 51: side

52: end surface 53: cutting device

54: air cylinder 55: blade portion

56: vertical surface 57: inclined surface

58: outer surface (vertical surface) 59: wire bending guide groove

60: hinge axis 61: roller

62: lead portion bending device 63: air cylinder

64: wire intermittent transfer device 64,65: air cylinder

67: narrow area

Claims (5)

A crimp for winding a horizontally supplied wire around the outer periphery to form a coil; A cylindrical body accommodating the crimp so as to protrude only when the crimp is wound around the wire to form a coil; A wire clamp provided on an upper side of the cylindrical body so as to pivot around the hinge axis to pinch or unpinch the wire drawn horizontally in the direction perpendicular to the crimping axis to the tip end of the cylindrical body; A first vertically formed on the distal end surface of the cylindrical body to contact the hole for receiving the crimp and guiding the protruded distal end portion of the wire to be bent at right angles while being protruded forward while being sandwiched by the wire clamp; Bending guide protrusion; Sliding movement in the axial direction is fitted to the outer circumference of the cylindrical body, and when moving to the front end side of the cylindrical body by restraining the rear end portion of the wire clamp to be pressed down to release the pinching state of the wire, and to the rear A clamp actuator for releasing the restraint state of the wire clamp upon retraction; Elastic means for applying a force in a direction in which the wire clamp always clamps the wire; Operating means operable to move the clamp actuator in an axial direction; A rotary driving device for rotating the cylindrical body; A conveying device for axially moving the entire rotating device including the cylindrical body and the actuating means; Ascending and descending the wire tip (first lead portion) to be in close contact with the first bending guide projection surface while descending together by lowering the wire tip protruding horizontally forward while being sandwiched by the wire clamp. A lead bending device that operates; The crimp insert is installed to be able to move in the axial line at the position facing the crimp, and the crimp is projected and the wire is wound around its outer circumference to form a coil and then transferred toward the crimp to accommodate the tip of the crimp. A secondary bending guide mechanism having a hole and pressing and fixing the side of the coil when receiving the crimp; A cutting device configured to rotate the crimp to form a coil and cut a wire to form a second lead portion, and to move up and down in a vertical direction such that the second lead portion is bent at a right angle; A second bending guide protrusion projecting perpendicularly to a front end face of the crimp insertion hole of the secondary bending guide mechanism to guide the second lead portion on the coil side which is cut and lowered by the cutting device to be bent at a right angle; Winding device for SMD air coil, characterized in that comprises a. The method of claim 1, The cutting device of the SMD air coil winding manufacturing apparatus, characterized in that the cutting action surface with the guide pipe is formed vertically, the opposite side is formed in the vertical surface via the inclined surface from the bottom. The method of claim 2, And a groove for guiding bending of the second lead portion is formed in the vertical direction on the inclined surface and the vertical surface extending therefrom. The method of claim 1, And a means for returning the clamp actuator to its original position is a spring manufacturing apparatus for the SMD air coil. The method of claim 1, The apparatus for winding a lead unit has a winding device for an SMD air coil, characterized in that it comprises a roller that lowers the tip of the wire.