JPH0715660U - Deflection coil split guide - Google Patents

Abstract

(57) [Abstract] [Purpose] Avoid sliding the wire rod and the guide when winding the deflection coil, and effectively apply the tension applied to the wire rod to tighten the deflection coil so that it is not consumed by friction with the guide. . [Structure] A pair of winding dies that are rotated by a drive shaft by combining two opposing winding dies, and a guide that is integrally formed on the pair of winding dies and guides a wire rod to the winding dies. And a fixed piece fixed to the winding form, the guide,
It is composed of at least two or more movable pieces.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a winding guide for winding a saddle-shaped deflection coil used in the base of a cathode ray tube of a television receiver or the like, and more specifically, in the process of winding this coil, The present invention relates to a splitting guide for a deflection coil that allows the mold to be split and disassembled.

[0002]

[Prior art]

 The deflection coil has a substantially half-moon shape as shown in FIGS. The half-moon-shaped deflection coil 1 rotates a die, that is, a winding die 5, 6 in the directions of arrows 14 and 15 around a central axis 2 in FIG. The wire rod 4 is supplied and wound around the winding forms 5 and 6, and the half-moon or saddle-shaped deflection coil 1 is wound.

When the wire rod 4 is supplied to the so-called winding forms 5 and 6, the shape of the deflection coil 1 is such that the collar portion 1a on the neck side of the deflection coil 1 and the collar portion 1b on the screen side are connected by the frame portion 1c. Since the nozzle 3 has a simple shape and is extremely complicated, the nozzle 3 also supplies the wire 4 while reciprocating in the direction along the central axis 2 with respect to each of the collar portion 1a, the frame portion 1c, and the collar portion 1b. In order to wind the deflection coil 1, the wire 4 is wound around the winding forms 5 and 6 as shown in FIG.

FIG. 9 is a perspective view of the winding forms 5, 6 and their guides 7, 8. The guides 7 and 8 are integrally fixed to disk-shaped face plates 9 and 10, respectively. The winding forms 5 and 6 are provided with positioning pins 5a and 5a, respectively, and pin holes 6a and 6a into which the pins 5a and 5a fit. The guides 7 and 8 are assembled with the winding forms 5 and 6 such that the positions of the guides 7 and 8 face each other at right angles, and the pins 5a and 5a are fitted into the pin holes 6a and 6a.

10 and 11 are side views showing the winding operation of the coil by the winding forms 5 and 6, the guides 7 and 8, and the face plates 9 and 10. At the time of the winding operation, as shown in FIGS. 10 and 11, the face plates 9 and 10 are integrally attached to and separated from the winding shafts 12 and 13 that advance and retreat in the direction of the arrow 11 along the central axis 2. . Then, as indicated by arrows 14 and 15, the face plates 9 and 10 are integrally rotated by the winding shafts 12 and 13 about the central axis 2, the wire rod 4 is wound around the winding forms 5 and 6, and the deflection coil 1 is wound. To do.

At this time, that is, in the state shown in FIG. 10, the wire rod 4 is pulled out from the wire rod supply port, that is, the nozzle 3 and wound around the winding forms 5 and 6, but the deflection coil 1 wound around the winding forms 5 and 6 is wound. 6 has a complicated shape, the wire 4 is wound from the top of the guide 7 or the guide 8 in the direction of the winding forms 5 and 6, that is, in the direction of arrow 11 while swinging to the right and left. The deflection coil 1 having the shape shown in FIG. 8 is formed. When the winding of a predetermined number of times is completed, the winding shafts 12 and 13 are moved in the direction of arrow 11 from the wound state of FIG. 11 to separate the face plates 9 and 10, and the deflection coil 1 is moved. Remove from winding forms 5,6. After that, the deflection coil shown in FIG. 11 is returned to.

[0007]

[Problems to be solved by the device]

 According to the conventional winding device described above, when the wire 4 is wound around the winding forms 5 and 6, that is, at the beginning of winding, the guides 7 and 8 guide the course and then the winding forms 5 and 6 are predetermined. In order to put the wire 4 in the correct position, the wire 4 must slide on the guides 7 and 8 and the winding forms 5 and 6 along the way. Then, in order to slide the wire rod 4 with respect to the guides 7 and 8, it is necessary to apply a strong tension to the wire rod 4.

However, since the wire 4 is a copper wire coated with an enamel and is not a material originally intended for strength and has a small wire diameter, it cannot withstand strong tension. Further, when the slide is performed by this strong tension, the cover is peeled off by friction. According to the prior art, for the above reasons, it is not possible to apply a strong tension above a certain level to the wire rod 4, and therefore it is not possible to form the deflection coil in a shape faithful to the winding shape. .

Therefore, the deflection coil formed by the conventional technique has a drawback that the product performance is inferior because it is not formed into a predetermined shape. In view of the drawbacks of the prior art, the present invention does not slide the guide or winding form and the wire, and minimizes the friction between them to wind the wire with a substantially stable tension when winding the coil. It is intended to provide a split guide of a deflection coil that can be wound into a mold.

[0010]

[Means for Solving the Problems]

 SUMMARY OF THE INVENTION In view of the drawbacks of the prior art, the present invention combines a pair of winding dies that are opposed to each other in a guide for a winding form of a deflection coil, and a pair of winding dies that are rotated by a drive shaft and an integral body of the pair of winding dies. And a guide for guiding a wire rod to the winding form, wherein the guide is a divided guide consisting of a fixed piece fixed to the winding form and at least two movable pieces. The movable piece slides between the fixed piece and the movable piece so that the relative position of the movable piece is variable, and the movable piece is movable in the initial winding stage in which the deflection coil in the portion between the fixed piece and the winding die is wound. The piece retreats to a position separated from the guide path of the wire rod, and returns to the deflection coil forming position at the time when the winding of the above portion is completed, and thereafter, the movable piece defines the shape of the laminated layer in which the wire rod is wound. To control .

[0011]

[Action]

 According to the present invention, the winding guide of the deflection coil is divided into the fixed piece and the movable piece, and the movable piece is moved forward and backward in the middle of the winding process. When the wire rod is wound into the winding form at the portion, the stroke of the wire rod sliding on the guide is reduced. As a result, the frictional resistance that acts between the guide and the wire rod is reduced, and the tension of the wire rod wound around the winding form effectively acts as the force to tighten the deflection coil, resulting in a high-quality product that is tightly wound. To be Further, as described above, since the frictional portion between the guide and the wire is reduced, the amount of wear of the film coating the surface of the wire is reduced, and the product yield can be improved. .

[0012]

【Example】

 Hereinafter, the present invention will be described in detail with reference to illustrated embodiments. It should be noted that illustration and description of the same parts as those of the above-mentioned conventional example will be omitted, and the same reference numerals and member names will be used for description. 1 is a front view of a winding die 5, 6 and its movable guide 100 according to an embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view taken along the line AA of FIG. 1, and FIGS. 5 is a perspective view schematically showing the movable guide 5 and its movable guide 100. FIG. 3 to 5 show the operating state of the movable guide 100.

In FIGS. 1 and 2, in this embodiment, the movable guide 100 includes a fixed piece 101, a first movable piece 103, a second movable piece 105, a third movable piece 107 and a fourth movable piece 109. It is divided into 5 pieces, and adjacent pieces are connected by dovetails. The fixed piece 101 and the first movable piece 103 are slidable by a dovetail 101a and a dovetail groove 103a, respectively. The fixed piece 101 is provided with a protrusion 101b having a female screw portion formed on the flat top of the dovetail 101a, and the other adjacent first movable piece 103 is provided with a cavity 103b through which the protrusion 101b passes. .

The fixed piece 101 and the first movable piece 103 are connected to each other similarly to each other. The first movable piece 103 is provided with a position control member 102 which is freely rotatable and fixed in the thrust direction. Then, the position control member 102 is formed with a male screw portion which is screwed into a female screw portion formed on the protrusion 101b. The position control member 102 is rotated by a pulse motor (not shown), and this rotation causes the male screw portion and the female screw portion to be screwed together to move forward and backward together with the first movable piece 103 according to the rotation direction. The dovetail groove 103a is moved by being guided by 101a.

The operation of the movable guide 100 from the stationary state of FIG. 3 to the coil winding state of FIG. 4 by the configuration shown in FIGS. 1 and 2 will be described first. From the stationary state shown in FIG. 3, first, the position control members 102 and 104 are rotated, and the first movable piece 103 and the second movable piece 105 are retracted, whereby the state shown in FIG. 4 is obtained. When the deflection coil 1 is wound in the state shown in FIG. 4, when the winding forms 5 and 6 are coupled as shown in FIG. 11 and rotated in the directions of the arrows 14 and 15, the winding shaft 12 is rotated about the central shaft 2. , 13 rotate and start winding while drawing out the wire 4 from the nozzle 3.

At the start of winding the deflection coil 1, the first movable piece 103, the second movable piece 105, the third movable piece 107, and the fourth movable piece 109 are also retracted. The wire 4 has no obstacles such as being caught or rubbing on the way, and the tension of the wire 4 is directly applied to the winding forms 5 and 6 so that the wire 4 is tightly wound. When the portion of the deflection coil 1 that is in contact with the fixed piece 101 and the winding forms 5 and 6 is substantially wound, the position control member 102 is moved to the unillustrated pulse motor, etc., as shown in FIG. The first movable piece 103 is returned to the state before the backward movement by rotating the first movable piece 103 by a predetermined number of rotations by the driving member. Of course, the position control member 106 also rotates at the same time to similarly return the third movable piece 107 of the piece.

The operation of the position control members 102 and 106 brings the first movable piece 103 and the third movable piece 107 into the state shown in FIG. 5, after which the winding of the deflection coil 1 is further continued. After the winding of the deflection coil 1 is continued for a predetermined number of revolutions in the state of FIG. 5, this time, the position control members 104 and 108 are rotated by a predetermined number of revolutions by a driving member such as a pulse motor, which is not shown. The state shown in 3 is restored, and the final portion of the deflection coil 1 is further wound.

After the winding of the final portion, the winding shafts 12 and 13 are actuated in the direction of the arrow 11 from the winding state of FIG. 11 to return to the detached state of FIG. Remove the coil 1 and complete one step. Thereafter, the movable guide 100 starts winding the deflection coil 1 again from the winding start state shown in FIG.

Needless to say, the embodiment shown above is only one specific example of the present invention, and there are many possible modes of operation other than the above. For example, as a means for shifting the relative positions of the fixed piece 101 and the first movable piece 103 by the position control member 102, the male screw portion is rotated and moved forward and backward by screwing with the female screw portion. Alternatively, the position control member may be directly moved back and forth by an air piston.

[0020]

[Effect of device]

 According to the present invention, the guide is divided into a plurality of movable guides as described above, and during winding, the divided pieces slide in a direction substantially perpendicular to the inner curved surface of the movable guide that faces the deflection coil. Retract from the track path of the wire rod. Therefore, when winding the deflection coil, there is no obstacle for winding and transferring the wire, so that the tension acting on the wire is not spent on the friction with the inner curved surface of the guide, and effectively acts on the winding of the deflection coil. A strong coil that does not lose its shape can be obtained.

Further, according to the present invention, since the tension of the wire effectively acts on the winding of the coil as described above, no extra friction or the like is generated between the wire and the guide, so that the wire Since the insulating coating on the surface is not damaged, pressure resistance and other performances of the deflection coil can be improved.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of an arrow AA portion in FIG.

FIG. 3 is a perspective view showing a state at a final winding of the deflection coil in FIG.

FIG. 4 is a perspective view showing a state of an initial winding of the deflection coil in FIG.

FIG. 5 is a perspective view showing a state in the middle of the winding of the deflection coil in FIG.

6 is a front view of the deflection coil 1. FIG.

FIG. 7 is a right side view of FIG.

FIG. 8 is a plan view of FIG.

FIG. 9 is a perspective view showing a winding die 5 portion and a winding die 6 portion.

FIG. 10 is a side view showing a part of the winding device with the deflection coil removed.

FIG. 11 is a side view showing a part of the winding device in a winding state of the deflection coil.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Deflection coil 1a, 1b Collar part 1c Frame part 2 Center axis 3 Nozzle 4 Wire rod 5,6 Winding type 5a, 5a Pin 6a, 6a Pin hole 7,8 Guide 9,10, Face plate 11,14,15 Arrow 12, 13 winding axis 100 movable guide 101 fixed piece 101a dovetail 101b protrusion 103 first movable piece 103a dovetail groove 103b cavity 105 second movable piece 107 third movable piece 109 fourth movable piece 102, 104, 106, 108 Position control member

Claims (1)

[Scope of utility model registration request] 1. A pair of winding dies which are formed by combining two opposing winding dies and are rotated by a drive shaft, and a guide which is integrally formed with the pair of winding dies and guides a wire rod to the winding dies. The guide comprises a fixed piece fixed to the winding form and at least two or more movable pieces, and the movable piece slides between the fixed piece and the movable pieces and has a relative position. In the initial winding stage in which the deflection coil in the portion between the fixed piece and the winding form is wound, the movable piece retracts to a position separated from the guide path of the wire rod, and the winding of the portion is performed. The guide for splitting the deflection coil, wherein the movable piece restricts the shape of the laminated layer formed by winding the wire after returning to the position where the deflection coil is formed.