JPH0478117A - Winding equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a winding device for winding a wire around a toroidal core, and particularly relates to a winding device that has a function of controlling the magnitude and direction of tension required for the wire. Regarding line equipment.

[Conventional technology]

Conventionally, as a winding device for a toroidal core, JP-A-63
There is one described in the -260010 publication. This device includes a transfer path formed in a circular shape in a device for winding wires on winding portions formed on both sides of a core window of a plurality of toroidal cores arranged with gaps, and a transfer path formed in a circular shape to A core holding means that rotates around the core window in a plane perpendicular to the transfer path and holds the core window in a position continuous with the transfer path, and a middle portion of the wire is inserted into the gap. This configuration includes line intermediate transfer means.

[Problem to be solved by the invention]

In the above-mentioned prior art, as the tip of the wire is transferred.

The middle part of the wire is inserted into the slit from the wire guide, and while pushing up the wire presser, it is interposed between the lower surface of the wire presser and the bottom surface of the slit, and is pressed by the weight of the wire presser to prevent the wire from loosening. It has become.

However, this pressure is due to the weight of the wire presser and is necessary when inserting the middle part of the wire into the gap between the cores.

There was a problem in that an appropriate tension could not be applied.

The purpose of the present invention is to solve the problems in the prior art described above,
As the tip of the wire is transferred, tension can be applied to the middle part of the wire in a predetermined direction, and when the middle part of the wire is inserted into the gap between the cores, the necessary strength of tension can be applied. Our goal is to provide a winding device that can.

[Means to solve the problem]

The above object is achieved by independently providing a tension applying means for applying tension to the wire and a tension direction control means for controlling the direction of the tension.

[Effect]

In order to embody the above means, it is composed of a clamping means for clamping the wire pulled out from the core window, a means for making the clamping pressure variable, and a movable pin provided between the core and the clamping means. do.

Then, by pulling out the wire passed through the core window with the clamping pressure of the clamping means low, the wire is introduced into the clamping means, and the pin is moved while the clamping pressure is high. By doing so, an appropriate tension can be applied in an appropriate direction without stopping the winding operation.

〔Example〕

An embodiment of a winding device according to the present invention will be described in detail with reference to the drawings.

As shown in FIG. 14, the DA head for a VTR to which the present invention is directed has two cores 2 and 2' attached to the tip of a base 2B with a gap 5 of about 0.5 cm. Each of these cores 2, 2' is a plate-like body made of ferrite and has a thickness of about 0.21 mm, and is formed to have a size of about 2 to 3 inches in length and width.

Also, each core 2, 2' has a 0.00.degree.
A core window 3 for winding of about 2 m x 0.51 m is formed. This core window 3 has a winding part 4 formed on both sides thereof, and an electric wire 1 (hereinafter referred to as wire) having a core diameter of about 0.035 m is wound around the winding part 4. The number of turns of this wire 1 varies depending on the product, but it is usually about 5 to 15 turns for both the left and right sides. Note that the base 2B formed as described above is attached to an upper cylinder (not shown).

The above embodiment will be explained below with reference to FIGS. 1 to 13.

FIG. 2 is a perspective view showing the entire winding device according to an embodiment of the present invention. The upper surface of the base 10 is formed into a circular shape, and there is a line between it and the lower surface of a cover 12 that covers the upper surface. A groove 11A forming the guide 11 is formed.

Further, a notch 13 formed in a part of the line guide 11 on the upper surface of the base 10 and a cutout portion of the line guide 11 of the notch 13 are positioned on both sides of the core window 3 shown in FIG. the wire guide 1;
A pair of rollers 21 arranged on the loose insertion side of the core window 3 of 1.
, 21', a pair of rollers 22, 22' disposed on the wire feeding side of the core window 3, and these two pairs of rollers 2
Two pairs of rollers 23, 23', 2412 disposed on the line guide 11 between 1°21', 22.22'
4' so that their respective rotation axes are perpendicular to the upper surface of the base 10, and each roller 21, 2
The opposing position of 1' to 24.24' is the line guy I.
11. Further, on the upper surface of the base 10, a wire presser 68 that clamps the wire 1 disposed in the radial direction within the wire guide 11, a presser unit 70 that controls the pressing force, and a presser unit 70 that controls the intermediate portion of the wire between the cores 2. An arm 60 for transferring the core 2 to the loose insertion side and a movable shadow guide 40 formed by cutting out a part of the base 1o on the loose insertion side of the core 2 are provided, and the core 2 is moved to the upper surface of the base 10. A rotating body 54 supported movably in three directions of XYZ
and a core reversing unit 9 for rotating the core 2 via the rotating body 54, and a winding unit 4 for winding the wire 1 around the core 2.

Next, FIG. 3 is a sectional view taken along the line AA in FIG. 2.

Rollers 21° 22 arranged outside the line guide 11
23 and 24 and a mechanism for swinging (retracting) the rollers 21', 22', 23', and 24' disposed inside.

As shown in FIG. 3, when the motor 31 for the roller drive and swing mechanism is driven, the rotating shaft 32 rotates via the coupling 31A, and the rollers 21, 22 fixed to the upper end of the rotating shaft 32 rotate. 23.24 and the rollers 21', 22', 23', and 24' that are in contact with these rotate, so that the $1 inserted between them is transferred. Further, when the piston 34 sliding inside the cylinder 33 moves upward, the swinging arm 36 connected to its upper end via the pin 35 swings around the pin 37, so that the Rollers 21', 22' via shaft 38
, 23', 24' swing from the solid line position to the dashed-dot line position and separate from the respective rollers 21, 22, 23.24 that were in contact with each other, and when the piston 34 moves downward, the arm 36 and the shaft Through the rollers 21', 22'
, 23', 24' swing upward to the position shown by the solid line and come into contact with the outer rollers 21, 22, 23, and 24.

Further, as shown in FIG. 3, the inner side of the circular groove 11A on the upper surface of the base 1o is formed into a plane 14 having a gap ε slightly larger than the diameter of the line 1 between the inner side and the lower surface of the cover 12. A slit 16 connected to the circular groove 11A is formed between the cover 14 and the lower surface of the cover 12. Note that the corner between the end of the plane 14 and the inner surface of the WIIIA is rounded 14A so that the wire 1 can move smoothly between the groove 11A and the slit 16.

Further, the illustrated reference numeral 39 is a bearing for rotatably supporting the rotating shaft 33.

Therefore, the inner rollers 21', 22'23'
, 34' are located at the solid line position, line 1 is inserted between the outer rollers 21, 22, 23, and 24, and for example, one inner roller 21' is located at one point. When the Jilt swings to the chain line position, the Jilt is pulled by the rotation of the other inner rollers 22', 23', 24' located at the solid line position and the other outer rollers 22, 23, 24 that are in contact with them. 1 inner roller 2
1' and inserted into the slit 16.

Next, FIG. 4 is a sectional view taken along line BB' in FIG. 2, and shows the movable linear guide 40. As shown in FIG.

As shown in FIG. 4, a movable linear guide 4o.

A guide groove 41 is formed in the opening groove 17 formed on the upper surface of the base 10 so as to be movable in the vertical direction, and is connected to the circular groove 11A on the surface of the upper surface facing the lower surface of the cover 12. A pneumatic cylinder 43 is fixed to the lower surface of the base 10 via a shaft 42 passing through the base 10 in the vertical direction.
is connected to.

Therefore, when the movable linear guide 40 is moved upward via the shaft 42 by the drive of the pneumatic cylinder 43, and when its upper surface comes into contact with the lower surface of the cover 12, the guide groove 41 is completely confined around it, but there is no air. When the pressure cylinder 43 is driven to move downward via the shaft 42 and its lower surface comes into contact with the bottom surface of the opening groove 17, a gap of the same height ε as the slit sheath 16 is formed between the upper surface and the lower surface of the cover 12. and connect it to the slit 16.

Next, FIG. 5 is a sectional view taken along line cc' in FIG. 2, and shows the core holding unit 50. As shown in FIG.

As shown in FIG. 4, the core holding unit 50 is.

A base 6 provided separately from the base 10, a bracket 6A fixed to this base 6, and this bracket 6A
A motor 55 fixed to and a drive shaft 5 of this motor 55
A rotating body 54 fixed to the tip of the rod 52 and having a D-shaped cross section; a top 53 at the tip of the rod 52 fixed to the center bottom of the rotating body 54 and sliding inside; an air thin lid 51 that inserts and holds the core 2 between the side surface of the tip protrusion 54A of the rotary body 54 facing the rotary body 54 so that the center line of the core window 3 and the rotational center line of the rotary body 54 coincide with each other; It consists of

Therefore, when the motor 55 drives the motor 55 and the rotating body 54 rotates 180° via the moving shaft 56, the core 2 moves between the solid line position and the two-dot chain line position with the core window 3 as the center. oscillate.

Next, parts related to the tension applying means and tension direction control means, which are one of the features of the present invention, will be explained with reference to FIG.

2, FIG. 1 corresponds to the DD cross-sectional view in FIG. and

As shown in FIG. 1, the loose fitting 68 is loosely fitted into a hole 12A formed by a linear cutout in a part of the cover 12 so as to be able to move vertically while contacting one end surface, and is normally held by its own weight. The lower surface is in contact with the bottom surface of the slit 16, and when the wire 1 reaches the inner lower end chamfered surface 68A along the slit 16, it is pushed up by the wire 1, and the wire 1 is inserted between the lower surface and the bottom surface of the slit 16. Press with your own weight.

The presser unit 7o includes an L-shaped lever 72 that is swingably supported by a bearing 73 by driving a solenoid 74 attached to a base 71.

By being pulled by the spring 75, the loose insertion 68 is pressed to increase the clamping pressure on the wire 1, and the excitation of the solenoid 74 is cut off. E 68 is held on the line by its own weight.

The arm 60 is L-shaped, and its upper part is located in the cutout hole 12A and in the hole 10A that vertically passes through the base L○ so as to be connected to the cutout hole 12A, at a solid line that crosses the slit 16. , a motor 61 which is swingably fitted between the bottom surface of the slit 16 and a position shown by a dashed dot line below the bottom surface of the slit 16, and whose lower end portion is fixed to the bottom surface of the base 10.
A drive shaft 61B is supported via a pin 62.

When the motor 61A is driven and the drive shaft 61B rotates, the upper part of the arm 60 is moved longitudinally along the cutout hole 12A and the hole 10A via a pin 62.

A center portion of a torsion spring 66 is wound around the pin 62 . This torsion spring 66 has two outer ends fixed to the drive shaft 61B and the arm 60, respectively.
The upper part of the arm 60 is always held at the solid line position across the slit 1G by the elastic force of the torsion spring 66.

Further, a cylinder 67 is fixed to the lower surface of the base 10 so as to be juxtaposed to the motor 61A. This cylinder 67
When driven, the tip of the rod 67A swings the arm 60 downward about the pin 62, swinging its upper part to a point IIIm of the lower value of the slit 16. The reference numeral 63 shown in FIG. 1 is a pin, and one end thereof is press-fitted into the drive shaft 61B so as to be in contact with the upper surface of the arm 60, and prevents the arm 60 from swinging upward from the position shown in the drawing.

Since the toroidal core winding device according to the present invention is constructed as described above, the method of winding the winding portion 7 will now be explained with reference to FIGS. 6 to 13.

In FIG. 6, the lever 72 is raised, the upper part of the arm 60 is swung by the cylinder 67 to the lower position of the slit 16 (the position shown by the dashed dot line in FIG. 1), and the movable shadow line guide 4
The bottom surface of 0 is in contact with the bottom surface of the opening groove 17, and the top surface and cover 1
This shows a state in which there is a gap between the lower surface of 2 and the lower surface of 2.

In addition, the tip of line 1 IA is connected to a pair of rollers 23°23'
The inner roller 21', which is sandwiched between them and placed on the wire type entry side of the core window 3, is retracted from the roller 21 so that the intermediate portion IB of the wire 1 is in the slit 16 and the winding portion 4 of the core 2 is This shows the state in which the inner ring has been formed.

In FIG. 6, the lever 72, arm 60, and roller 21' are shown in chain lines, but these indicate that they are in the above-mentioned state, and in subsequent drawings, the lever 72, arm 60, and roller 21' are shown in chain lines. 72° arm 60 and roller 21
When ', 22', 23', and 24' are in the above-mentioned state, they are indicated by chain lines.

As shown in FIG. 7, in some cores 2, the core window 3 is located on an extension of the line guide 11 surrounded by the movable shadow line guide 40 and the cover 12 with the tape sliding surface 2A facing upward. It is maintained as such.

From this state, as the rollers 23 and 23' rotate, the tip 1A of the line ↓ is fixed and transferred to the line guide 11, and when it reaches between the rollers 24 and 24' as shown in FIG. The size of the coil formed by the intermediate portion 1B becomes smaller and narrowed toward the winding portion 4 of the core 2.

During this time, the lower surface of the movable shadow guide 40 continues to be in contact with the bottom surface of the opening groove 17, and there is a gap between its upper surface and the lower surface of the cover 12, so that lXi is closer to the slit than the guide groove 41 on the upper surface of the movable shadow guide 40. 16 and core 2
The winding portion 4 can be narrowed down.

Thereafter, as shown in FIG. 9, when the roller 22' is retracted and the roller 21' is returned to its original position facing the roller 21, the intermediate portion IB of the line 1 is located between the pair of rollers 2
As the distal end 1A is transferred on the line by rotations 3 and 23', it is inserted from the line guide 11 into the slit 16, and since the loose insertion 68 is light due to its own weight, while pushing it up, its lower surface and the bottom surface of the slit 16 are inserted. Since the loose insert 68 is pressed by its own weight, it can be prevented from loosening.

By continuing to rotate rollers 23 and 23', line 1
A tension is applied to the intermediate portion IB and the wire 1C already wound around the core 2, and in the second state, the roller 22' returns to its original position and comes into contact with the roller 22.

At this time, the solenoid 74 is driven and the lever 72 presses the loose insertion 68.

Also, at this time, the movable shadow line guide 40 moves upward to the fourth position.
As shown in the figure, the upper surface is in contact with the lower surface of the cover 12, so that the guide groove 41 on the wire entry side of the core window 3 has the slit 1.
6 and is in a blocked state.

Further, when the tip 1A of the wire 1 is transferred by the rollers 24 and 24' and reaches the movable shadow line guide 40 via between the rollers 21 and 21', the driving of the pneumatic cylinder 67 is stopped and the torsion spring 66 is moved. The upper part of the arm 6o is raised to a position where it crosses the slit 16 by the elastic force of the roller 23.
′ is evacuated.

At this time, as described above, the intermediate portion IB of wire 1 is loosely inserted 68
Since it is held in place by the presser foot 5, it is possible to prevent it from loosening.

Then, as shown in FIG. 10, the core 2 is rotated around the core window 3 so that the tape sliding surface 2A side of the gap 5 coincides with the slit 16.

In this state, as shown in Fig. 11 (a) and (b), line 1
The tip IA of is transferred by rollers 21, 21';
When guided by the guide groove 41 of the movable shadow line guide 40 and reaches the line type entry side of the core window 3, the motor 61 is driven and the arm 6o inputs the line type of the core 2 along the notch hole 12A and hole 10A. Because it moves to the side! ! 1 middle part IB
is pulled by the arm 60 while being partially pressed by the loose insert 68 held by the lever 72, and guided through the slit 16 with appropriate tension applied to the core 2 and core 2'. Enter gap 5.

After that, the rollers 21 and 21' move the tip I of the wire 1
A is fed and exits from the notch 13, but at this time, the wire IC already wound around the winding part 4 of the core 2 is under tension by the arm 60, so the two wires LA and IC may interfere with each other. Instead, the tip FA of one wire 1 passes through the core window 3 and advances into the wire guide 11.

The tip 1A of the wire 1 that has passed through the core window 3 in this manner is transferred by the rotation of the rollers 2L and 2L' to the first
As shown in FIGS. 2(a) and 2(b), when the solenoid 74 reaches the space between the rollers 22 and 22', the solenoid 74 is de-energized so that the line 1 can easily come out from the loose insertion 68, and the rollers 23' and 24
' returns to its original position and comes into contact with the rollers 23 and 24, and the movable shadow line guide 4o moves downward so that its lower surface comes into contact with the bottom of the opening groove 17 and connects the upper surface with the cover 1.
A gap is formed between the lower surface of 2 and the lower surface of 2.

Further, the upper part of the arm 60 is swung by the driving of the cylinder 67 to a position shown in dashed dots in FIG. 5 below the slit 16.

Next, the core 2 is rotated around the core window 3 and held with the tape sliding surface 2A facing upward as shown in FIG.

On the other hand, the intermediate portion IB on the line is transferred by the rotation of the rollers 21, 21', and the wire ring including the winding portion 4 of the core 2 and the roller 21' is gradually narrowed down and becomes smaller.

At this point, the roller 21' is retracted and the tip end 1A of the wire 1 is transferred by the rotation of the rollers 22, 22' and reaches between the rollers 23, 23', resulting in the state shown in FIG. 6, with one winding on one side. The winding work on one side is completed, and the same operation as described above is repeated a predetermined number of times to complete the winding work on one side.

Next, as shown in FIG. 13, the core 2 is turned over around the core window 3, and the same operations as described above are repeated to complete the winding work on the other side.

In this case, there is no need to rotate the core 2.

Furthermore, all the winding work is completed by repeating the same operation as described above for the core 2'. However, core 2'
When winding the wire, the rotating body 54 is
It is necessary to correct the positional deviation between the rotation center line of the core window 3 and the center line of the core window 3.

The embodiment described above is intended for a DA head for a VTR, but a normal hent for a VTR or other toroidal cores can also be wound in the same manner, so that the wires can be aligned closely to the core. This makes it possible to wind the wire with good properties.

〔Effect of the invention〕

According to the present invention, in a winding device that winds a wire around a toroidal core, a slight tension can be applied in a continuous operation, so that winding speed can be increased, and the reliability of winding operation can be improved.
Winding quality can be improved.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a portion related to tension applying means and tension direction control means in an embodiment of a winding device according to the present invention, and FIG. 2 is a perspective view showing the overall configuration of the winding device of the embodiment. Figure 3 is a sectional view taken along line AA' in Figure 2, Figure 4 is a sectional view taken along line BB' in Figure 2, and Figure 5 is a sectional view taken along line CC' in Figure 2.
6 to 13 are explanatory views for explaining the winding operation, and FIG. 14 is a perspective view showing an example of a DA head to be wound by the winding device according to the present invention. Explanation of symbols 1... line, IA... line tip, IB... line intermediate part. 2... Core, 3... Core window, 5... Gap, 10...
Base, 11...Line guide, 21-24 and 21'-
24'...a-ra, 40...movable shadow line guide, 50
- Core holding unit, 60...Arm, 68...Wire type, 72...Lever connection! Figure 1--Line 10--Base 12--1 Cover 61A-1 Motor 61B-11 Drive shaft 62-65-11 Pit 6 Footsie 11 Sode 6'7A-m-Lot 68-1 One presser foot 1 - One line 2 - M - Core 10 - Head 11 - Recommended 10 - Base 12 - 11 Copper 7 Loose slit assembly 2 Figure / 2 - One cover 50 - Core Near 9 temple unit B--notch 60-11 people 21-24-
--Roller 68--One-line tane-ezaki-Movable type 1 dog 0
--- Presser foot 4-- Figure 17 --- Inquiry side 40 --- One movable cap id 41 -- Guide purchase 42 --- Shi, foot 43 -- One book do king ν Risodan n --- A sound "Buido Explosion 6 Pickpocket 56-*d! l'7 Glaze stitch Otsu drawing key 40--Ichiji 1 force-shaped shoulder U-ite I6--Zuri y-to 60--Arm stitch drawing 1-1 line 16---Slit 11-11 needle id 40-@jK31iljf4F 2-m-core 12-m-cover 4F? Figure 1--Line 11--To 1 temple 1 Id 40--Movable nail A Figure 1--One line 60--Arm 6θ-11 presser foot assembly 11 Figure (0,)

Claims (2)

[Claims] 1. a circular transfer path for winding wires on winding portions formed on both sides of a core window of a plurality of toroidal cores arranged with gaps; a core holding means that rotates around the center in a plane orthogonal to the transfer path and holds the core window in a position continuous with the transfer path; and a line intermediate transfer means that inserts an intermediate portion of the wire into the gap. What is claimed is: 1. A winding device comprising a wire rod, characterized in that a tension applying means for applying tension to a wire rod and a tension direction control means for controlling the direction of the tension are independently provided. 2. 2. The winding device according to claim 1, wherein the tension applying means is a means for clamping the wire pulled out from the core window, and the clamping pressure is variable.