JP3160136B2 - Deflection yoke winding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION This invention relates to a deflection yoke winding apparatus for winding the coils of the deflection yaw click for use in a cathode ray tube such as a display or television.

[0002]

2. Description of the Related Art FIG.
FIG. 13 is a cross-sectional view showing a conventional deflection yoke winding device shown in Japanese Unexamined Patent Application Publication No. H11-129, and in FIG. 2a, 2b are a large-diameter-side circumferential groove and a small-diameter-side circumferential groove of the bobbin 2 having a radial slit formed at an end, and 3 is a rotating mechanism for rotating and positioning the bobbin 2. Reference numeral 4 denotes a wire 6 such as an enameled wire which can be inserted into and removed from the bobbin 2 from the large diameter side (shown in FIGS. 14 to 16).
Are drawn out from the tips, respectively, and a pair of winding nozzles 5 are a pair of guide hooks disposed on the small diameter side of the bobbin 2. The winding nozzle 4 or the guide hook 5 is movable in the axial direction and the radial direction of the bobbin 2 and is further rotatable, and is operated by a positioning mechanism (not shown) so as to be appropriately positioned in a predetermined posture and a predetermined position. It has become.

Next, the operation will be described. The pair of coiled nozzles 4 move from the state of entering the small diameter side of the bobbin 2 so as to pass the wire 6 to which the terminal is fixed to the inner wall of the bobbin 2, and move to the outside of the large diameter side circumferential groove 2 a. Once positioned, the bobbin rotation mechanism 3 rotationally positions the bobbin 2,
The wire 6 is extended to the large diameter side circumferential groove 2a.

Next, after the nozzle 4 is raised to a position as shown in FIG. 14 so as not to hit the large-diameter end of the bobbin 2, the wire 6 is moved so as to pass over the inner wall of the bobbin 2. When the guide hook 5 is lowered until it protrudes from the small-diameter side end as shown in FIG. 15, the pair of guide hooks 5 rotates and hooks the wire 6, and then opens and rises to a position as shown in FIG. Here, when the bobbin rotation mechanism 3 rotationally positions the bobbin 2, the wire 6 is transferred to the small diameter side circumferential groove 2b, and after the guide hook 5 rotates and releases the wire 6, the nozzle 4 is moved to the large diameter side. The wire 6 is folded back. In this way, the nozzle 4 reciprocates inside the bobbin 2 and the bobbin rotating mechanism 3 rotationally positions the bobbin 2 and alternately inserts the wire 6 into each of the large-diameter side circumferential groove 2a and the small-diameter side circumferential groove 2b. Turns and turns.

[0005]

The conventional deflection yoke winding device is constructed as described above.
Is folded back on the small diameter side of the bobbin 2, the moment the guide hook 5 releases the wire 6, the wire 6 is applied to the wire 6 until the drawn-out portion is spread over the inner wall of the bobbin 2. The tension becomes zero. For this reason, the wire 6 already loosened is likely to be loosened and its position easily shifted, and the tension is apt to vary.

[0006] In particular, as a target product, for example,
As shown in JP-A-86218, FIG. 1 is provided with a straight rib 7 without a bend in a small diameter portion to improve assemblability.
When the wire is wound around the bobbin 8 as shown in FIG. 7, not only does the wire material 6 become loose, causing misalignment or variation in tension, but also the wire material 6 that is to be hooked on the rib 7 may come off from the rib 7. obtain.

Further, even if the guide hook 5 attempts to approach the rib 7 to guide and align the wire 6 around the rib 7 of the bobbin 8, at least the outer diameter d of the hook portion of the guide hook 5 itself (FIG. 16). ) Must be at least separated from the ribs 7, and the windings cannot be kept aligned at the stage of stacking the windings, so that the windings tend to be lost.

When the nozzle 4 passes through the small diameter of the bobbin 2 as shown in FIG. 15, the bending angle θ of the wire 6 is large at the exit of the nozzle 4 having a small bending radius (smaller than the guide hook). (Greater than 90 degrees in FIG. 15)
The surface pressure of the wire 6 due to the tension increases. Therefore, in order to prevent the enamel coating of the wire 6 from being damaged and causing dielectric breakdown, the wire must be wound with the tension lowered below a desired value.
Also in this respect, the tension condition was apt to fluctuate under the influence of inertia fluctuation.

That is, as described above, the conventional deflection yoke winding device has disadvantages such as poor reproducibility and retention of the winding distribution and large damage to the wire rod, so that a high quality deflection yoke cannot be obtained. However, there have been problems such as a low yield of the wire rod and a troublesome work for repair such as applying ferrite for quality improvement.

The present invention has been made in order to solve the above-mentioned problems. Particularly, even when the deflection yoke has a straight rib on the small diameter side, the reproducibility and the retention of the winding distribution are good. It is an object of the present invention to obtain a deflection yoke winding device that hardly damages a wire.

[0011]

According to a first aspect of the present invention, there is provided a deflection yoke winding device in which a winding nozzle is disposed so as to be freely inserted and removed from a small diameter side of a bobbin, and is located at a position lateral to the bobbin. and line retainer provided retractably in the radial direction of the bobbin, when the wire is applied to the winding hook of the small mouth diameter or large mouth diameter by wire nozzle, the wire hung on the winding hook A wire press positioning mechanism for positioning the wire press with respect to the winding hook so as to be pressed by the wire press;
A guide hook which can be freely inserted into and removed from the hollow portion of the bobbin from the large-diameter end, and the guide hook for pulling the wire toward the large-diameter side prior to the winding nozzle when the wire is moved toward the large-diameter side. And a guide hook positioning mechanism for hooking the wire on the wire and moving the wire toward the large diameter side.

According to a second aspect of the present invention, there is provided a deflection yoke winding device, which is provided on a winding nozzle so as to be swingable about an axis orthogonal to an axis of a bobbin, and a leading end extension member for leading a wire from a tip. And a leading end positioning means for swinging the leading end extension member so that the leading end of the wire comes close to the winding hook when the wire is hung on the winding hook at the large diameter side end. is there.

According to a third aspect of the present invention, there is provided a deflection yoke winding device which is provided on a winding nozzle so as to be rotatable about an axis parallel to an axis of a bobbin, and leads out a wire from a curved or bent tip. An end extension member, and a lead end positioning means for rotating the lead end extension member so that the lead end of the wire comes close to the winding hook when the wire is hung on the winding hook at the large diameter end. Is what you do.

[0014]

According to the first aspect of the present invention, since the winding nozzle is disposed so as to be freely inserted and removed from the small diameter side end of the bobbin, only the winding nozzle can be provided without providing a guide hook on the small diameter side. Thus, the wire can be wound close to the winding hook on the small diameter side, and the wires to be hooked on the winding hook on the small diameter side can be easily stacked in an aligned state.

Further, Sen'osae is driven positioned by Sen'osae positioning mechanism, when the wire is hung on the winding hook of the small mouth diameter by wire nozzle, is determined position relative to the winding hook The wire rod hung on the winding hook is pressed. For this reason, since this wire presser functions as a stopper for preventing the wire from shifting or coming off, even when the winding hook at the small-diameter side end extends in the axial direction of the bobbin,
Winding on the small diameter side can be performed while reliably applying tension to the wire.

Further, the guide hook provided on the large diameter side of the bobbin is driven while being positioned by the guide hook positioning mechanism, and when the wire is wound toward the large diameter side (the winding nozzle is connected to the bobbin). When the wire is inserted from the small diameter side and moves to the large diameter side), the wire is hooked and guided to the large diameter side in order to draw the wire into the large diameter side prior to the winding nozzle. For this reason, even when the bending radius of the nozzle exit in the winding nozzle is small, the bending angle of the wire is not so large (at least 90 degrees or less), and the damage to the wire is reduced.

According to the second aspect of the present invention, the extension end extending member is provided on the winding nozzle so as to be swingable about an axis orthogonal to the axis of the bobbin. When the wire is hooked on the winding hook, the leading end extension member is swung so that the leading end of the wire rod approaches the winding hook. For this reason, while the winding nozzle is configured to be inserted and withdrawn from the small-diameter side, the lead wire length when the wire is hooked on the winding hook on the large-diameter side and turned back (the bobbin that has been drawn out from the leading end of the winding nozzle and is still The length of the unwired wire) can be shortened, and even when the wire is passed along the oblique trajectory from the large diameter side to the small diameter side, it can be performed while reliably maintaining the wire tension. . Here, the oblique trajectory refers to a trajectory in which the wire is inclined with respect to a radial trajectory (a trajectory in which the wire is in a plane including the bobbin axis) extending radially with respect to the bobbin axis.

Therefore, in order to hang the wire rod on the winding hook on the large-diameter side and turn it back, and to keep the drawn-out wire on the inner wall of the bobbin while always being stretched, the leading end of the winding nozzle must be folded at the turning point on the large-diameter side. The winding nozzle must be moved so as to move on the extension of the predetermined locus on the inner wall of the bobbin with the center as the center, but in the case of the above oblique locus, the drawing wire length when the wire is folded on the large diameter side is If the length is long, the position on the extension line where the leading end of the winding nozzle should be moved is located outside the inner side of the bobbin, so that interference between the leading end of the winding nozzle and the inner wall of the bobbin occurs. It is impossible to move the winding nozzle.

The leading end extension member according to the third aspect of the present invention is provided on the winding nozzle such that the leading end side for leading out the wire is curved or bent, and is rotatable about an axis parallel to the axis of the bobbin. The lead-out end positioning means moves the lead-out end extension member such that the lead-out end of the wire (the tip of the lead-out end extension member) approaches the winding hook when the wire is hung on the winding hook at the large diameter side end. Rotate. For this reason, even though the winding nozzle is configured to be inserted and withdrawn from the small diameter side, it is possible to shorten the length of the lead wire when the wire is hooked on the winding hook on the large diameter side and then folded, and the small diameter side is changed from the large diameter side to the small diameter side. In this case, even if the wire is moved along an oblique trajectory, it can be performed while reliably maintaining the tension of the wire.

[0020]

【Example】

Embodiment 1 FIG. One embodiment of the first and second aspects of the present invention will be described below with reference to the drawings. The same members as those of the conventional deflection yoke winding device shown in FIG. FIG. 1 is a perspective view showing a deflection yoke winding device 9 of the present embodiment. In FIG. 1, reference numeral 10 denotes a winding nozzle which is disposed in a trumpet-shaped bobbin 8 so as to be freely inserted into and removed from the small-diameter side, 11 denotes a bobbin chuck that holds the bobbin 8, 12 denotes a rotating mechanism that rotates and positions the bobbin chuck 11, 13 Is a nozzle positioning mechanism that supports and drives the winding nozzle 10 to move it while positioning it in three axial directions (up, down, left, right, front and back), and 14 is disposed at a position beside the bobbin 8 held by the bobbin chuck 11. A rod-shaped wire presser 15 is a wire presser positioning mechanism for positioning the wire presser 14 in two axial directions (front and rear, left and right) in this case, and 16 is a bobbin 8 held by a bobbin chuck 11 which can be freely inserted and removed from a large diameter side. Guide hooks, which are arranged and have a hooked tip, 17
Is a guide hook positioning mechanism that supports and drives the guide hook 16 to move it while positioning it in three axial directions (up, down, left, right, front and back) and to rotate in the twist direction.

FIG. 2 is an external view showing details of the winding nozzle 10. In FIG. 2, reference numeral 18 denotes the nozzle positioning mechanism 13
A fixed member 19 whose base end is attached to the frame 18; a rotating member 20 whose one end is rotatably attached to the base end of the fixed member 19;
Reference numeral 1 denotes a motor for driving the rotating member 20 (outgoing end positioning means). Reference numeral 22 denotes a fixed member whose base end is rotatably attached to the other end of the rotating member 20 and is supported so as to be rotatable while keeping parallel to the fixed member 19. The driven member 23 has a length substantially equal to 19, and the fixed member 1 is kept parallel to the rotating member 20.
A base end side rotatably supported by the fixed member 19 and the distal end of the driven member 22 so as to be rotatable with respect to the driven member 9 and the driven member 22, and a leading end extension member having a hole through which the wire 6 can pass through the member; Reference numerals 25, 26, and 27 denote bearings for guiding the rotational movement of each part, and reference numeral 28 denotes wire guides provided at a plurality of locations on the side surface of the fixing member 19 for inserting the wire 6 and regulating the passing position. Here, the pivot axis of the extension member 23 extends in a direction orthogonal to the axis G (shown in FIG. 3) of the bobbin 8 held by the bobbin chuck 11.

The motor 21 is, for example, a servomotor (including a speed reducer if necessary) with a rotational position detector such as a rotary encoder, and is controlled based on a program previously taught by a control device (not shown). Thus, as described later, the lead-out end extension member 23 is rotated while appropriately positioning. In addition, the rotation mechanism 12, the nozzle positioning mechanism 13, the wire press positioning mechanism 15, and the guide hook positioning mechanism 17 are also configured by similar servo motors, gear reducers, rack and pinion gears, and the like, and are taught in advance by the control device. The robot is controlled based on a program and rotates or moves while appropriately positioning the bobbin chuck 11, the frame 18 of the winding nozzle 10, the wire presser 14, or the guide hook 16 as described later (a so-called industrial robot). Although each of the positioning mechanisms 13, 15, 17 is illustrated as an orthogonal coordinate robot in FIG. 1, it goes without saying that a so-called vertical multi-indirect robot or a scalar robot can be used, for example. .

Next, the operation will be described. The bobbin 8 is gripped by the bobbin chuck 11 with the small-diameter side facing the winding nozzle 10, the wire 6 is set on the winding nozzle 10, and one end thereof is fixed to the machine body or the like on the large-diameter side of the bobbin 8. Thereafter, when the start of the winding operation is commanded by a start switch or the like (not shown), the control device controls the nozzle positioning mechanism 13 and the like to operate the winding nozzle 10 and the like as described below.

That is, first, as shown in FIG.
0 is approached to the small diameter side of the bobbin 8 to enter the bobbin 8, and then the guide hook 16 is inserted into the bobbin 8 from the large diameter side to hook the wire 6, and as shown in FIG. By moving the guide hook 16 and the winding nozzle 10 toward the large diameter side with the guide hook 16 preceding, the wire 6 is transferred to the inner wall of the bobbin 8. At this time, the guide hook 16 is moved along the inner wall of the bobbin 8, and the
The motor 21 is operated to gradually move the lead-out end extension member 23 so that the distance between the lead-out end of the winding nozzle 10 (that is, the tip of the lead-out end extension member 23) and the guide hook 16 is kept substantially constant. Move the whole to the large diameter side while bending. When the guide hook 16 and the lead-out end extension member 23 are positioned so that the guide hook 16 is located near the outside of the large-diameter-side circumferential groove 11a as shown in FIG. 5, the bobbin 8 is rotated by the rotating mechanism 12, The wire 6 is inserted into the large diameter side circumferential groove 11a.

Next, the leading end extension member 23 is moved to the small diameter side by the nozzle positioning mechanism 13 or the like to raise the angle so that the wire 6 is not loosened, and at the same time, the guide hook 16 is moved by the guide hook positioning mechanism 17. Is moved to the position shown in FIG. 6 so as not to hit the large-diameter end of the bobbin 8, and further to the position shown in FIG. Then, in this state, the guide hook 16 is removed from the wire 6.

Thereafter, the lead-out end extension member 23 is moved to the small diameter side so that the wire 6 is cut over the inner wall of the bobbin 8,
When approaching the vicinity of the small-diameter side end portion, the motor 21 and the nozzle positioning mechanism 13 are synchronously controlled, and the leading end extension member 23 is moved so that the trail of the leading end substantially draws an arc around the root of the rib 7. The extension end member 23 is positioned to the position shown in FIG. From this state, the rotation mechanism 12, the motor 21, and the nozzle positioning mechanism 13 are synchronously controlled so that the bobbin 8 is rotated, and
Is moved while positioning, and as shown in FIG.
Are spread outside the ribs 7 so as to be stacked in a substantially arc shape. At the same time, the wire press positioning mechanism 15 is operated to move the wire press 14 to the winding nozzle 10 as shown in FIG.
The rib 7 is advanced from the outside of the small diameter portion of the bobbin 8 toward the center at a predetermined height where the
Press against.

Next, after the winding nozzle 10 is advanced into the small diameter of the bobbin 8, the guide hook 16 is hooked on the wire 6 in the same manner as the first, and the winding nozzle 10 and the guide hook 1 are wound.
By moving the wire 6 to the large diameter side, the wire 6 is folded while being held by the wire presser 14, and the above operation is repeated in a state similar to the start of winding.

In this way, when the winding nozzle 10 reciprocates inside the bobbin 8 while moving in cooperation with the guide hook 16 or the wire presser 14, the rotating mechanism 12 appropriately rotates and positions the bobbin 8, and the large-diameter side circumferential groove. When the wire rods 11a and the small-diameter-side ribs 7 are alternately wound, respectively, the winding is turned back, and a pair of coils is finally formed on the bobbin 8, thereby completing the deflection yoke.

As described above, in the deflection yoke winding device of the above embodiment, since the winding nozzle 10 is disposed so as to be freely inserted into and removed from the small-diameter end of the bobbin 8, the winding nozzle 10 is disposed on the small-diameter side. This winding nozzle 10 can be provided without providing a guide hook.
The wire can be wound close to the winding hook (rib 7) on the small-diameter side only by itself, and the wires to be hooked on the winding hook on the small-diameter side can be easily stacked in an aligned state as shown in FIG.

Further, when the wire 6 is hung on the rib 7 and folded on the small diameter side, the wire presser 14 functions as a stopper for preventing the wire 6 from being displaced or coming off. Even when the hook extends in the axial direction of the bobbin (such as the case of the rib 7), the winding on the small diameter side can be performed while reliably applying tension to the wire 6.

Further, when the wire 6 is bent toward the large diameter side, the guide hook 16 provided on the large diameter side of the bobbin 8 moves the wire 6 to the large diameter side before the winding nozzle 10. Lead. For this reason, even when the bending radius of the nozzle exit (lead-out end) in the winding nozzle 10 is small, the bending angle of the wire 6 does not become so large as shown in FIGS. 4, 5 and 6 (at least 90 degrees or less). Thus, damage to the wire 6 is reduced.

In addition, in the above-described embodiment, the extending end member 23 that swings is provided, and the winding between the guide hook 16 and the wire length is kept short (that is, the lead wire length is kept short). Since the movable range of the winding nozzle 10 is restricted, such as when the oblique trajectory 30 is laid from the large diameter side to the small diameter side as shown in FIG. The rib can be positioned at the small-diameter side rib interval without loosening. Here, the oblique trajectory 30 describes a radial trajectory 29 extending radially from the center axis of the bobbin 8 at the center of the winding in the case of a winding pattern as shown in FIG. Means a locus drawn so as to extend from a position slightly deviated from the center axis of the bobbin 8 outside the winding.

Therefore, in order to hang the wire 6 on the winding hook on the large diameter side and turn it over, the wire 6 led out after the wire 6 is stretched to the inner wall of the bobbin 8 while always being stretched, the leading end of the winding nozzle must have a large diameter. The winding nozzle must be moved so as to move on an extension of a predetermined trajectory of the inner wall of the bobbin 8 about the turning point on the side. However, if the winding nozzle is a mere rod as shown by reference numeral 10a in FIG. 5, the length of the lead wire when the wire is folded on the large diameter side is extremely small as shown by the one-dot chain line in FIG. In the case of a long and oblique trajectory, the leading end (outgoing end) of the winding nozzle 10a must be moved to the outside of the bobbin 8 after being moved as shown by the dashed line in FIG. However, this movement is impossible because the tip of the winding nozzle 10a and the inner wall of the bobbin 8 abut.

However, in the case of the first embodiment, only the lead-out end extension member 23 in the winding nozzle 10 is tilted, so that the lead wire length at the time of turning back on the large diameter side as shown in FIGS. Can be kept extremely short. Therefore, the interference between the inner wall of the bobbin 8 and the lead-out end does not occur, and the oblique trajectory can be passed into the bobbin 8 without loosening the wire 6.

Therefore, even if the winding hook on the small diameter side is a straight deflection yoke, or if the winding pattern has an oblique locus 30 as shown in FIG. A high-quality deflection yoke with good wire properties and no damage to the wire can be easily manufactured, thereby improving the yield of the wire and avoiding correction work such as applying ferrite to improve the quality of the deflection yoke. There is an effect that the cost can be significantly reduced while securing it.

Embodiment 2 FIG. Next, an embodiment of the third aspect of the present invention will be described with reference to the drawings. Note that the same or similar components as those in the first embodiment are denoted by the same reference numerals and description thereof will be omitted. In FIG. 12, reference numeral 31 denotes a leading end extension member provided on the leading end side of the winding nozzle 10, the leading end of which is bent obliquely, and is provided by a motor 32 (leading end positioning means) similar to the motor 21 of the first embodiment. Driven, bobbin chuck 1
The bobbin 8 held at 1 rotates around an axis parallel to the axis G.

Even in the case where the extension member 31 is provided, the rotation position of the extension member 31 is controlled via the motor 32 in synchronization with the position control of the entire winding nozzle 10. And the guide hook 1 as in the first embodiment.
6 can be wound while keeping the wire length short. Therefore, as in the first embodiment, even if the winding hook on the small-diameter side is a straight deflection yoke, the winding pattern cannot be changed as shown in FIG.
Even if it has a diagonal locus 30 as shown in FIG.
There is an effect that the cost can be remarkably reduced while the quality of the deflection yoke is kept high.

It should be noted that the present invention relates to the above-described first or second embodiment.
There may be various other modes. First, in the case of a bobbin or the like having no oblique trajectory 30, the object of the invention can be attained by using a simple rod-shaped winding nozzle without providing the extension end member 23 or 31 and its driving mechanism.

In the above embodiment, the wire presser 14 is used only for turning the small diameter end of the wire 6 at the rib 7. However, the reproducibility and symmetry of the winding distribution on the large diameter side are also reduced. If there is a particular problem, the wire presser 14 may be used also at the time of winding at the large diameter end.

In the above embodiment, the wire presser 14 is positioned so as to be pressed against the ribs 7. However, depending on the folded shape of the winding, it may be preferable to insert the wire presser into the gap between the ribs 7. It is possible.

In the above embodiment, the winding nozzle 10
A fixed member 19, a rotating member 20 supported to be rotatable with respect to the fixed member 19, and a driven member parallel to the fixed member 19 and supported to be rotatable with respect to the rotating member 20. 22 and a lead end extension member 23
Are parallel to the rotating member 20 and supported so as to be rotatable with respect to the driven member 22 and the fixed member 19. This is a configuration for accurately rotating and positioning the lead-out end extension member 23 by a so-called parallel link. However, any other structure can be used as long as play is less likely to occur and the structure can pass through a small-diameter end. Purpose is achieved.

In the above embodiment, the deflection yoke winding device 9 provided with one winding nozzle 10 and one guide hook 16 is provided.
However, when the winding nozzle 10 can pass through the inner diameter of the bobbin, the function of the present invention is not impaired even if two units are provided as in the conventional example.

In the above embodiment, the wire presser 14 has an example in which the tip has a straight shape. However, the present invention is not limited to this, and the wire presser 14 may be bent or inclined according to the bobbin shape. Alternatively, two types may be provided for the large diameter side and the small diameter side, and a switching mechanism may be added between the wire holding and positioning mechanism 15.

Further, in the above-described embodiment, the example in which the fixing member 19 rotatably supports the base end of the extension member 23 has been described.
The object of the present invention can be achieved even in a structure in which the arrangement of the fixed member 19 and the driven member 22 is switched, and the driven member 22 rotates and supports the base of the extension member 23.

In the above-described embodiment, an example is shown in which the terminal of the wire 6 is fixed to the outside. However, the present invention is not limited to this, and the terminal is provided on the bobbin 8 so that the terminal can be fastened there. It may be.

In the above embodiment, the rib 7 on the small diameter side is used.
Is shown as a case where the effect is remarkably obtained by taking the straight bobbin 8 as an example, but the same effect is also obtained with the bobbin 2 having a curved rib.

[0047]

As described above, according to the first aspect of the present invention,
The wire nozzle is disposed so as to be removably inserted from the small diameter side of the bobbin, the line retainer provided retractably in the radial direction of the bobbin at a position where the side of the bobbin, a small mouth diameter by wire nozzle or when the wire is applied to the winding hook large mouth diameter, the line pressing positioning mechanism a wire hung on the winding hook position the said wire retainer to pressing by the wire retainer, in the hollow portion of the bobbin A guide hook that can be freely inserted and removed from the large-diameter end, and a guide hook positioning that moves the guide hook to draw the wire into the large-diameter side prior to the winding nozzle when the wire is moved toward the large-diameter side. Mechanism, so that even if the winding hook at the small-diameter side end is extended in the axial direction of the bobbin, the small-diameter wire is kept in a predetermined alignment state while reliably applying tension to the wire. If the winding on the side can be done To, even if the bending radius of the nozzle outlet in the wire nozzle is small, described bending angle of the wire does not become so large, it becomes less damage to the wire.

Therefore, even if the winding hook on the small-diameter side is a straight deflection yoke, a high-quality deflection yoke which has good reproducibility of the winding distribution and retainability and has no damage to the wire can be easily manufactured. To improve the yield of wire rods,
Correction work such as applying ferrite can be avoided,
There is an effect that the cost can be remarkably reduced while the quality of the deflection yoke is kept high.

According to the second aspect of the present invention, a leading end extension member which is provided on the winding nozzle so as to be swingable about an axis orthogonal to the axis of the bobbin and which leads the wire from the tip, and a large diameter wire When hung on the winding hook at the side end portion, the drawing end positioning means for swinging the drawing end extension member so that the drawing end of the wire material is close to the winding hook is provided, so that a large diameter Even when the wire is moved along the oblique trajectory from the side toward the small diameter side, it can be performed while reliably maintaining the tension of the wire, so that the cost of the deflection yoke can be significantly reduced while ensuring high quality. effective.

According to the third aspect of the present invention, there is provided a lead end extension member rotatably provided around the axis parallel to the axis of the bobbin, provided on the winding nozzle, and leading the wire from the curved or bent tip. When the wire is hung on the winding hook at the large-diameter end, there is provided a lead end positioning means for rotating the lead end extension member so that the lead end of the wire comes close to the winding hook. , Even when the wire is passed along the oblique trajectory from the large diameter side to the small diameter side, it can be performed while reliably maintaining the tension of the wire, and the cost is dramatically reduced while maintaining the quality of the deflection yoke high There are effects such as being able to do.

[Brief description of the drawings]

FIG. 1 is an external view showing a deflection yoke winding device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a structure of a winding nozzle of a deflection yoke winding device according to an embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a winding start state in a winding step of the deflection yoke winding device according to one embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a state in which the wire is drawn into the large-diameter side of the bobbin after the winding is started in the winding process of the deflection yoke winding device according to the first and second embodiments of the present invention.

FIG. 5 is a cross-sectional view showing a state of winding on the large diameter side in a winding step of the deflection yoke winding device according to one embodiment of the present invention.

FIG. 6 is a cross-sectional view showing a state of winding on the large diameter side in a winding step of the deflection yoke winding device according to one embodiment of the present invention.

FIG. 7 is a cross-sectional view showing a folded state after the large-diameter side winding in the winding process of the deflection yoke winding device according to the first and second embodiments of the present invention.

FIG. 8 is a sectional view showing a winding state on a small diameter side in a winding step of the deflection yoke winding device according to one embodiment of the first and second aspects of the present invention.

FIG. 9 is a cross-sectional view showing the state of winding on the small diameter side in the winding step of the deflection yoke winding device according to one embodiment of the first and second aspects of the present invention.

FIG. 10 is a cross-sectional view showing a winding state on a small diameter side in a winding step of the deflection yoke winding device according to one embodiment of the first and second aspects of the present invention.

FIG. 11 is a plan view showing a winding pattern for explaining the operation of the invention of claim 2 or 3;

FIG. 12 is a cross-sectional view showing a structure of a winding nozzle of a deflection yoke winding device according to an embodiment of the present invention.

FIG. 13 is a sectional view showing a conventional deflection yoke winding device.

FIG. 14 is a cross-sectional view showing a large-diameter-side winding process of a conventional deflection yoke winding device.

FIG. 15 is a cross-sectional view showing a winding process from the large-diameter side to the small-diameter side of the conventional deflection yoke winding device.

FIG. 16 is a cross-sectional view showing a small-diameter side winding step of the conventional deflection yoke winding device.

FIG. 17 is a perspective view showing a bobbin in which a rib on the small diameter side is straight.

[Explanation of symbols]

 Reference Signs List 8 bobbin 10 winding nozzle 13 nozzle positioning mechanism 14 wire presser 15 wire presser positioning mechanism 16 guide hook 17 guide hook positioning mechanism 21 motor (lead-out end positioning means) 23 lead-out end extension member 31 lead-out end extension member 32 motor (lead-out end positioning) means)

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-173304 (JP, A) JP-A 64-246 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01J 9/236

Claims (3)

(57) [Claims] 1. A winding nozzle which can be inserted into and removed from a hollow portion of a trumpet-shaped bobbin of a deflection yoke from a small-diameter end portion of the bobbin, and draws a wire from a tip, and a wire drawn from the winding nozzle. And a nozzle positioning mechanism for positioning and moving the winding nozzle while positioning the winding nozzle so as to form a deflection coil by hooking the winding hooks on the large diameter side end and the small diameter side end of the bobbin. and line retainer which is freely moved in the radial direction of the bobbin in a position, when the wire is applied to the winding hook of the small mouth diameter end or large diameter end by the winding nozzle, the winding hooks A wire presser positioning mechanism for positioning the wire presser with respect to the winding hook so as to press the wire material to be hung on the wire presser, and a guide that can be inserted into and removed from the large-diameter end of the hollow portion of the bobbin. When the hook is pulled toward the large-diameter end, the guide hook is hooked on the wire to pull the wire into the large-diameter end prior to the winding nozzle. A deflection yoke winding device comprising: a guide hook positioning mechanism for moving to a large diameter side end. 2. A lead end extension member provided on the winding nozzle so as to be swingable about an axis orthogonal to the axis of the bobbin, and leading out the wire from a tip, and connecting the wire to the large-diameter end. And a leading end positioning means for swinging the leading end extension member so that the leading end of the wire rod is close to the winding hook when the part is hooked on the winding hook. 2. The deflection yoke winding device according to claim 1. 3. An extension end extension member rotatably provided around the axis parallel to the axis of the bobbin, provided on the winding nozzle, and extending the wire from a curved or bent tip.
When hanging the wire rod on the winding hook of the large diameter side end,
2. The deflection yoke winding device according to claim 1, further comprising a lead end positioning means for rotating the lead end extension member so that the lead end of the wire comes close to the winding hook.