JPH0950933A - Insulation film winding method - Google Patents

Abstract

(57) Abstract: To provide a method for winding an insulating film capable of surely winding a wire rod in an aligned manner. SOLUTION: A plurality of positions at the winding start end of the first layer of insulating film F1 are fixed, one position at the winding end of the insulating film F1 is fixed, and a wire rod is wound around the insulating film F1 and then Insulation film F for the second and subsequent layers
When winding 2, the insulating film F2 is fixed at one position at the winding start end, the insulating film F2 is fixed at one position at the winding end, and one position at the winding start end and the winding end end. 1 is a symmetrical position, and when the wire rod is wound around the insulating film of a predetermined number of layers after the second layer, the insulating film FN is wound when the insulating film FN of the final layer is wound.
One position at the winding start end of N is fixed, and a plurality of positions at the winding end end of the insulating film FN are fixed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulating film winding for winding an insulating film around a wound object such as a laminated coil such as a flyback transformer used in a television receiver. It is about the method.

[0002]

2. Description of the Related Art Generally, a laminated coil such as a flyback transformer used in a television receiver has a single layer formed by winding a wire rod aligned with a body portion of a cylindrical bobbin. An eye coil is formed, and then an insulating synthetic resin film or the like is wound around the first layer coil. Then, on the insulating film, the next wire is aligned and wound to form a second layer coil. By repeating such a coil winding operation and a film winding operation a predetermined number of times, the above-described laminated coil is formed. In the above operation, as a method of forming an insulating layer between coils by winding an insulating synthetic resin film, there is a conventional method as shown in FIGS. 11 and 12. In the conventional winding method of the insulating film shown in FIG. 11, the insulating film 200A has the body portion 2 of the bobbin 210.
10a, and one side 200C of the winding start end 200B of the insulating film 200A is welded and fixed. This winding start end portion 200B is cut into a rectangular shape. Further, the winding start end portion 200E of the conventional insulating film 200D of FIG. 12 is obliquely cut, and the tip end portion 200F of the winding start end portion 200E is supplied to the body portion 210a of the bobbin 210 and fixed by welding. Has been done. In the conventional method of FIG. 12, the film 2
00D is wound around the body 210a, and the end end portion 200G of the winding is fixed by welding.

[0003]

However, in the conventional insulating film winding method of FIG. 11, the insulating film 200A is used.
Only the one side 200C of the winding start end 200B is the body 210
Since it is fixed to a, the insulating film 200A
The insulating film 200A is peeled off due to the degree of fixation of the one side 200C during winding, and the wire cannot be reliably wound on it. Further, in the conventional insulating film forming method of FIG. 12, since the pressing width length at the winding start end portion 200E of the insulating film 200D made of one wire becomes long, the winding start end portion 200
It is necessary to apply a large tension to the wire material in order to bring E into close contact with the film on the inner peripheral side and to bring the winding start end portion 200E or the winding end end portion 200G into close contact with the film so as not to rise. . Therefore, there is a problem that the wire is easily cut and the aligned winding of the wire cannot be performed well. Therefore, the present invention has been made to solve the above problems, and provides a method for winding an insulating film, which prevents the insulating film from being lifted or peeled off, so that the wire can be reliably aligned and wound. Has an aim.

[0004]

SUMMARY OF THE INVENTION In the present invention, the above object is achieved by alternately winding an insulating film and a wire to wind the wire into a wound object in a multilayer structure. Is a method of winding an insulating film for winding the insulating film, wherein when winding the insulating film of the first layer around an object to be wound, a plurality of insulating films at the winding start end of the insulating film of the first layer are wound. After fixing the position, fixing one position at the winding end end of the first layer of insulating film, winding the wire around the wound first layer of insulating film, and then winding the second and subsequent layers of insulating film. At the time of turning, fixing one place at the winding start end of the insulating film of the second layer and thereafter, fixing one place at the winding end end of the insulating film of the second layer and thereafter,
One position at the winding start end and one position at the winding end end are symmetrical positions, and after the wire material is wound around a predetermined number of layers or more of the insulating film after winding, the insulating film of the final layer is further wound. When the film is wound, it is achieved by a film winding method in which one position at the winding start end of the final layer insulating film is fixed and a plurality of positions at the winding end end of the final layer insulating film are fixed. It According to the present invention, first, when the first-layer insulating film is wound around the object to be wound, a plurality of positions at the winding start end of the first-layer insulating film are fixed. Then, one position at the end of winding of the insulating film of the first layer is fixed.

Next, when a wire is wound around the wound insulating film of the first layer and then the insulating film of the second and subsequent layers is wound, the insulating film of the second and subsequent layers is wound. One place at the winding start end is fixed. And 2
One position is fixed at the end of winding of the insulating film on and after the layer. In this case, one position at the winding start end and one position at the winding end end are symmetrical positions. Furthermore, after winding the wire material around the wound insulating film of the second and subsequent layers, when further winding the insulating film of the final layer, one place at the winding start end of the insulating film of the final layer is It is fixed, and a plurality of positions at the end of winding of the insulating film of the final layer are fixed.

By doing so, when the first insulating film is wound around the object to be wound, a plurality of winding start end portions are fixed, so that the first insulating film is fixed. The certainty of can be improved. Moreover, since one end of the winding end of the first insulating film is fixed to the winding target, the winding end can be fixed to the winding target in a relatively free state. it can. Then, the insulating film for the second and subsequent layers is fixed at one position at the winding start end and at one position at the winding end. Then, one position at the winding start end and one position at the winding end end are target positions, and the winding process can be shortened by fixing at each one position.

After winding a predetermined number of layers of the insulating film and the wire material on and after the second layer, one end of the winding start end of the insulating film of the final layer is fixed, and the winding end end of the insulating film of the final layer is fixed. Multiple points in the section are fixed. Therefore, the fixing of the insulating film can be ensured, and peeling of the insulating film of the final layer can be prevented.

[0008]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Note that the embodiments described below are preferred specific examples of the present invention,
Although various technically preferable limitations are given, the scope of the present invention is not limited to these modes unless otherwise specified to limit the present invention.

FIG. 1 shows an example of a winding device for carrying out the method for winding an insulating film according to the present invention. The winding device shown in FIG. 1 is for winding a wire rod and an insulating film alternately on a bobbin type transformer 101 such as a flyback transformer (FBT) to form a multilayer structure. The bobbin 101 of this transformer is a winding object. A rotary loader 1 is provided on the base B, and the rotary loader 1 has two bobbin insertion rods.
One bobbin insertion rod 1a is an already wound bobbin 101 into which a bobbin wound with a wire rod and a film F is inserted.
This is the mounting part. The other bobbin insertion rod 1b is an insertion portion of the empty bobbin 101 that has not yet been wound by the operator.

The rotary loader 1 is provided on a base B via a rotary base 1c which is rotated by a command from a control device (not shown). The XY table 9 is provided on the base B, and the winder 2 is provided on the XY table 9. By operating the XY table 9,
The winder 2 and the like can move in the X and Y directions along the horizontal direction on the parallel surfaces of the base B. The axis 2a of the winder 2 is
It is adapted to be rotated by a servomotor, and a bobbin 110 of a transformer can be fitted and fixed to the shaft 2a thereof.

Next, the insulating film loading mechanism FL will be described. The loading mechanism FL is for loading the insulating film F at a position apart from the winding position of the film F when the insulating film F is wound around the bobbin 110. Pulling chuck guide 4 of loading mechanism FL
Is a linear guide, which is fixed on the base B along the X direction. The holding chuck guide 5 is a linear guide and is fixed on the base B along the X direction.

The pulling chuck 13 is composed of two claws and can chuck the insulating film F by the action of a cylinder. The pulling chuck 13 pulls out the insulating film F in a certain direction of the bobbin 101. The pulling chuck body 3 is provided with the pulling chuck 13 on the upper part thereof, is fitted in the pulling chuck guide 4, and is movable in the X direction. A ball screw is fixed to the shaft of the serve motor 17, and the pull chuck body 3 can be moved to an arbitrary position of the pull chuck guide 4 and positioned by a command position of servo control from the numerical controller. Hold down chuck 1
4 is composed of two claws so that the rear end of the film 18 can be chucked by the action of a cylinder. The holding chuck 14 holds the rear end of the insulating film F cut into a predetermined length by the cutter 12. The holding chuck body 8 is provided with a holding chuck 14 on the upper part thereof, and is fitted in the holding chuck guide 5 so as to be movable in the X direction.

The belt 15 is a band having a small elasticity,
One end of the belt 15 is suppressed and engaged with the chuck body 8, and the other end is engaged with the weight 6. The weight 6 pulls the pulling chuck body 14 in the arrow X1 direction opposite to the direction (X direction) in which the insulating film F is loaded via the belt 15. The belt 15 is supported by a belt roller 16 for changing the horizontal direction to the vertical direction. Cutter 12 which is the cutting part of the insulating film
Includes a cutting means for cutting the insulating film F and a holding means for temporarily fixing the insulating film F. By introducing the insulating film 18 through the inside of the cutter 12,
The cutting means of the cutter 12 can cut the insulating film F. The insulating film F is held by the gripping means so that the cut insulating film F is not exposed. The pulling chuck 13, the film cutter 12, and the holding chuck 14 described above constitute a load mechanism FL for the insulating film.

At the top end of the welder 10, a film welding portion and a mechanism for moving the film welding portion in the Z direction and the Y direction are provided. The insulating film F wound around the bobbin 110 can be welded at the film welding portion of the welder 10. As the shaft 2a of the winder 2 rotates, it passes through a tension control means (not shown) from the introducing direction S of the insulating film F wound around the bobbin 110,
It is adapted to be introduced in the X direction (the loading direction of the insulating film F). The shaft 2a of the winder 2 is rotated by a spindle motor (not shown) so that the bobbin 1
A wire rod or a film can be wound around 10.

FIG. 2 shows the welder 10, bobbin 110, film pressing portion 11 and the like of FIG.
The welder 10 is supported by a welder support 40, and the welder up-and-down cylinder 39 allows the welder 10 to move up and down in a substantially vertical direction or at a predetermined angle. The tip 10a of the welder 10
Is a portion for welding the insulating film to the bobbin 110 and for insulating the insulating films from each other. The film pressing portion 11 is arranged corresponding to the welder 10 and presses the tip of the insulating film F against the bobbin 110. The bobbin 110 has a body 110a and two collars 110b.

Next, a method of winding the insulating film by the above-mentioned device will be described. First, the operator attaches the empty bobbin 1 to the empty bobbin mounting portion 1b of the rotary loader 1 shown in FIG.
Wear 10. Then, the rotary loader 1 is rotated so that the empty bobbin 110 comes on the axis of the shaft 2a of the winder 2. Then, the XY table 9 is operated to mount the empty bobbin 110 on the shaft 2a from the rotary loader 1. FIG.
The pull chuck body 3 is moved, and the leading end of the film F is grasped by the pull chuck 13. And pull chuck body 3
Is moved in the direction of the arrow X and is transferred to a predetermined position near the winder 2. The predetermined position means the pull chuck body 3
And the tip of the insulating film F pulled out by the cutter 12
The length of the insulating film cut at is a position such that the distance required for winding the insulating film once on the bobbin 110 is obtained. Therefore, when the layers wound around the bobbin 101 are different, the predetermined position to which the pull chuck body 3 is transferred is gradually different. That is, each time the layers are stacked, the winding radius of the insulating film F becomes longer due to the influence of the thickness of the wire material and the pulling chuck body 3 is moved closer to the winder 2. After the holding chuck 14 holds the insulating film 18, the cutter 12 cuts the film 18.

Then, the pulling chuck 13 is transferred to the vicinity of the winder 2 and moved to a position right below the winder 2. Accordingly, the pulling chuck 13 loads the insulating film 101 at a position slightly apart from the winding position of the insulating film F around the bobbin 110. At this time,
The holding chuck body 8 is also pulled in the direction of the arrow X by the action of the weight 6 and accordingly the movement of the pulling chuck 13, so that the holding chuck 14 appropriately applies tension to the insulating film F. The occurrence of bending of the insulating film F is prevented.

In this way, as shown in FIG. 3, the first-layer insulating film F1 is positioned near the bobbin 110 after being cut to the required length. The film pressing portion 11 of FIG. 2 uses the first insulating film F1 as the bobbin 11
Contact with 0 at an appropriate pressure. Then, the welder 10 shown in FIG. 2 is lifted up, and the insulating film F1 is attached to the bobbin 110 at two positions 21a and 21b of the winding start end 21 of the insulating film F1 of the first layer as shown in FIG. It is welded to the body part 110a. That is, the film winding start end 21 is cut into a rectangular shape in the axial direction of the bobbin 110 by the cutter 12 of FIG. 1, and the two positions 21a and 21b of the winding start end 21 are located at the film winding start end. 21 is the position of each corner.

After the film winding start end portion 21 of the insulating film F1 is thus welded to the body portion 110a of the bobbin 110, the bobbin 1 together with the shaft 2a of the winder 2 shown in FIG.
Rotate 10. As a result, the insulating film F1 is wound around the body 110a of the bobbin 110 as shown in FIG. The film winding end portion 22 of the insulating film F1 is
Like the film winding start end portion 21, the cutter 12 shown in FIG. 1 cuts the bobbin 110 parallel to the axial direction. This film winding end 22 is pressed by the film pressing portion 11 of FIG. 2, and the welder 10 of FIG. 2 welds one position 21c of the film winding end 22 to the body 110a of the bobbin 110. To be done.

In this way, the first insulating film F1
In the case of winding the bobbin 110 around the bobbin 110, the positions 2 of the plurality of positions of the film winding start end portion 21 of the insulating film F1 are
1a and 21b are welded and fixed to the bobbin 110,
One position 2 at the film winding end 22
1c is also fixed to the bobbin 110 by welding. The film winding start end 21 side has two positions 21a, 2
Since it is fixed to the bobbin 110 by 1b, it is possible to improve the certainty of fixing the film winding start end 21. Since the film winding end portion 22 side is fixed to the bobbin 110 at one position 21c, it is fixed in a relatively free state.

By rotating the bobbin 110 together with the shaft 2a of the winder 2 shown in FIG. 1, the wire rod 31 from the wire rod supply means (not shown) is wound around the first insulating film F1 as shown in FIG. Aligned winding is performed.

Next, on the wire rod 31 which is aligned and wound, as shown in FIG.
Then, as shown in FIG. 7, the second and subsequent insulating films F2 are wound. The pulling chuck body 3 in FIG. 1 grasps the tip of the insulating film F2 and moves in the direction of arrow X. The holding chuck 14 holds the insulating film F2, and the cutter 12 cuts the insulating film F2 into a predetermined length. Then, the pulling chuck body 3 attaches the insulating film F2 to the bobbin 11 of FIG.
Transfers to near 0. The film pressing portion 1 of FIG.
1 is the film winding start end 3 of the insulating film F2 of FIG.
1, the welder 10 welds one position 23a of the film winding start end 31 to the insulating film F1 of the first layer of the bobbin 110. The film winding start end 31 is already cut by the cutter 12 so as to be parallel along the axial direction of the bobbin 110, and one position 23a is one corner portion of the film winding start end 31. . Then, the shaft 2a of the winder 2 of FIG. 1 and the bobbin 110 rotate, so that the insulating film F2 is aligned and wound on the insulating film F1 of the first layer.
Wrapped on top of 1.

As shown in FIG. 7, the film winding end portion 32 of the insulating film F2 is already cut by the cutter 110 so as to be parallel to the axial direction of the bobbin 110, and the film winding end portion 32 is formed. 23b is fixed to the first insulating film F1 by welding, for example. As clearly shown in FIGS. 6 and 7, one position 23a of the film winding start end portion 21 and one welding position 23b of the film winding end end portion 32 are positionally symmetrical positions and overlap with each other. Not a position.

Then, as shown in FIG. 8, the second layer wire 31 is aligned and wound on the second layer insulating film F2.
The winding of the insulating film F of the third and subsequent layers and the wire rod 31 wound on the film are performed in the same manner as shown in FIGS. 6 to 8. After the winding operation of a predetermined number of layers and the winding operation of the film are completed, the final insulating film is wound as follows.

The insulating film FN of the final layer is pulled in the direction of arrow X by the pulling chuck body 3 of FIG. 1, and the cutter 12 cuts it to a predetermined length while the holding chuck 14 holds the insulating film of the final layer. . The pulling chuck body 3 attaches the final insulating film FN to the bobbin 11 of the winder 2.
Transfer to 0 side. When the insulating film FN is positioned at a predetermined position on the bobbin 110 as shown in FIG. 9, the film pressing portion 11 of FIG. 2 presses the final insulating film FN and the welder 10 causes the final insulating film FN to move. One position 33 of the film winding start end 41 of the FN
a is welded to the lower insulating film. The film winding start end 41 is formed by the cutter 12 of FIG.
Since it is formed in a shape along the axial direction of 10, the one position 33a is located at one corner of the film winding start end 41.

From the film winding end 22 of the first insulating film F1 to the film winding start 31 and the film winding end 32 of the second insulating film F2 shown in FIG.
And, up to the film winding start end portion 41 of the insulating film FN of the final layer, they are welded to each other at one position. Thereby, the welding process can be omitted. Then, by rotating the shaft 2a of the winder 2 and the bobbin 110 shown in FIG. 1, the final insulating film FN is wound around the wire 31 as shown in FIG. And 2 of the film winding end portion 51 of the insulating film FN of the final layer
Positions 33b and 33c are welded by the welder 10 in FIG. Thus, the film winding start end 21 of the first insulating film F1 of FIG. 3 and the winding end end 51 of the final insulating film FN of FIG. 10 are welded at two points respectively. Therefore, the insulating film can be securely fixed. As described above, the film and the wire having a predetermined number of layers can be alternately wound, and a laminated coil as shown in FIG. 10 can be produced.

As described above, in FIGS. 4 to 9, the winding welding step is shortened by performing the welding at only one position at the film winding start end and the film winding end end. Can be planned. Moreover, since the welding position at the film winding start end and the welding position at the film winding end are different from each other, the welding positions are substantially equal to the bobbin 110 side.
It is possible to more stably weld and fix the insulating film. In addition, in the embodiment of the present invention, each insulating film is provided between the collars 110b and 110b of the bobbin 110 in the body portion 1.
It is wound around 10a. The present invention is not limited to the above embodiment. In the winding method of the insulating film described above,
Although the method of winding the insulating film around the bobbin for the flyback transformer is described, the present invention is not limited to this and the present invention can be applied to the case where the insulating film is wound around an object to be wound in other fields. You can

[0028]

As described above, according to the present invention,
By preventing the insulating film from rising and peeling, the wire can be reliably aligned and wound.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of an apparatus for carrying out a method for winding an insulating film of the present invention.

FIG. 2 is a view showing an example of a film pressing portion and a welder (welding device) of the device of FIG.

FIG. 3 is a view showing a state in which a film winding start end portion of the first layer insulating film is welded to a bobbin (object to be wound).

FIG. 4 is a diagram showing a state in which a film winding end portion of the first insulating film is welded.

FIG. 5 is a diagram showing a state in which wire rods are aligned and wound on a first-layer insulating film.

FIG. 6 is a view showing a state in which the film winding start end portion of the second insulating film is welded.

FIG. 7 is a view showing a state in which the film winding end portion of the second insulating film is welded.

FIG. 8 is a view showing a state in which wires are aligned and wound on a second-layer insulating film.

FIG. 9 is a view showing a state in which a film winding start end portion of the final insulating film is welded.

FIG. 10 is a view showing a state in which a film winding end portion of the final layer insulating film is welded.

FIG. 11 is a view showing a state in which a winding start end portion of an insulating film is welded in a conventional insulating film winding method.

FIG. 12 is a view showing a state in which a film winding start end portion of an insulating film in another conventional insulating film winding method is welded.

[Explanation of symbols]

 21a, 21b, 21c Welded position (location) 23a, 23b Welded location (location) 33a, 33b, 33c Welded position (location) 110 Bobbin (wound object) F Insulation film F1 First layer insulation film F2 Second layer insulation film FN Last layer insulation film

Claims (5)

[Claims] 1. An insulating film winding for winding the insulating film when the insulating material and the wire material are wound alternately by alternately winding the insulating material and the wire material in a multilayer structure. When the first layer of insulating film is wound around the winding target,
A plurality of positions at the winding start end of the first layer insulating film are fixed, and 1 at the winding end end of the first layer insulating film is fixed.
After winding the wire material around the wound insulation film of the first layer after fixing the location, when winding the insulation film of the second and subsequent layers,
Fixing one place at the winding start end of the second and subsequent insulating films, fixing one place at the winding end end of the second and subsequent insulating films, one place at the winding start end and the winding end end 1 is a symmetrical position, and when the wire material is wound around a predetermined number of layers or more of the insulating film after the winding is finished and the final layer of insulating film is further wound, insulation of the final layer A film winding method, comprising fixing one position at a winding start end of a film and fixing a plurality of positions at a winding end end of an insulating film of a final layer. 2. The insulating film winding method according to claim 1, wherein each insulating film is wound in a winding direction of the wire. 3. The insulating film winding method according to claim 1, wherein each insulating film is fixed by welding to an insulating film located in a lower layer. 4. A plurality of positions at the winding start end of the first layer insulating film and a plurality of positions at the winding end end of the last layer insulating film are located along the rotation axis direction of the winding object. The insulating film winding method according to claim 1, wherein the plurality of locations are two locations. 5. The winding object according to claim 1, wherein the winding object has a main body and a flange portion provided at both ends of the main body in the longitudinal direction, and each insulating film is wound between the flange portions. Insulation film winding method.