JPH02181341A - Coil winding machine for deflection coil - Google Patents

Abstract

PURPOSE:To enable a wire to be wound in alignment by providing a pushing unit for pushing the wire to be wound in a coil region defined by a punch and a die. CONSTITUTION:After extension of a shaft 17 causes a die 12 connected thereto to be engaged with a punch 11, only the shaft 17 is retreated. Reciprocating circular motion of a flyer 18 on a locus 15 enables a wire to be guided by a coil guide 13 so as to be wound in a coil region 19 provided by the engagement of the die 12 with the punch 11. At this stage, operation of an ultrasonic oscillator 14 serving as a pushing unit A oscillates the die 12 and the punch 11. This oscillation of the punch 11 and the die 12 can decrease hooking of the wire with the punch 11 and the die 12. This allows the wire to be wound in alignment from the inner part of the coil region 19.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a winding machine for automatically winding a deflection coil mounted on a cathode ray tube, and particularly relates to an improvement of a winding machine for a deflection coil that can perform aligned winding. .

"Prior Art" A conventional deflection coil winding machine has a coil mold 3 consisting of a male mold 1 and a female mold 2 which can be separated and connected freely, as shown in FIGS. 15 to 17. After the mold 1 and the female mold 2 are combined, the flyer 4 moves in a reciprocating arc around the coil mold 3, so that the wire 5 is guided by the winding guide 6, and the air space formed by the coil mold 3, In other words, the wire 5 is wound around the winding region 7. After the deflection coil is wound, the shaft 8 is extended and connected to the female mold 2.
The shaft 8 performs a return operation to open the male die 1 and the female die 2, and then the deflection coil after winding is released from the coil die 3.

The deflection coil manufactured by the above-mentioned deflection coil winding machine has a shape in which a deflection coil attached to a single cathode ray tube is vertically divided into two.

``Problems to be Solved by the Invention'' However, the conventional deflection coil winding machine described above simply winds the wire 5 in the winding area 7 of the coil mold 3 by interposing the winding guide 6 through the reciprocating arc movement of the flyer 4. Since the wire rod 5 is in constant contact with the winding guide 6, the winding area 7 is caused by contact with the winding guide 6.
The tension of the wire rod 5 wound around is reduced. For this purpose, the cross section of the winding region 7 of the coil type 3 is as shown in FIG.
It has a semicircular shape to match the shape of the neck of a cathode ray tube. For this reason, if the slip resistance between the wire 5 and the female mold 2 is large, the winding will be insufficient from the deep part of the winding area 7, as shown by the two-dot chain line, compared to the ideal winding state shown by the broken line in FIG. In some cases, the coils are not turned and are wound in an unaligned manner, making it impossible to obtain good magnetic properties during use. Particularly when winding a plurality of wires at once, such as a phosphor wire, the slip resistance between the wire and the female mold 2 is large, and the probability of the above problem occurring is high.

Moreover, recently, in order to improve the magnetic properties of the deflection coil, a bottle is inserted into the winding region 7 in the middle of winding to form an air space for correcting the magnetic properties in which the wire is not wound around the deflection coil. However, as mentioned above, due to the catch between the coil type 2 and the wire 5, it is not possible to form an air space for magnetic property correction for each predetermined number of turns, and it is difficult to obtain the desired magnetic properties. There is a problem that it cannot be done.

In view of the above-mentioned circumstances, the present invention can solve the conventional problem that due to the slip resistance between the coil type and the wire, the winding area of the coil type cannot be wound in a sequential order from the deep end, and the wire gets caught in the middle. The purpose of the present invention is to provide a winding machine for a deflection coil.

"Means and effects for solving the problem" In order to achieve the above object, the present invention is characterized in that, in claim 1, the wire is forcibly pushed into the winding region of the coil type by a pushing device. be.

The invention set forth in claim 2 uses an ultrasonic oscillator as a pushing device to vibrate one of the coil molds to reduce the slip resistance between the coil mold and the wire to be wound. . The invention as set forth in claim 3 is such that the pushing plate advances into the winding area along the coil shape and forcibly pushes the wire into the winding area by the linear and swinging motion of the arm. be. In the invention as set forth in claim 4, by moving the coiled spring in a straight line, the coiled spring itself bends along the coil shape against the elastic force of the coiled spring, thereby causing the pushing piece to bend the wire rod into the coil-shaped winding. It is designed to be pushed into the area.

"Example" Below, an example of a winding machine for a deflection coil according to the present invention will be described based on the drawings.

First, the first embodiment shown in FIGS. 1 and 2 will be described. Reference numeral 11 indicates a male type, and 12 indicates a female type.

The female mold 12 is movable so as to be freely coupled to the male mold 11, and has a winding guide 13, which is the same as in the conventional case. An ultrasonic oscillator 14 using a Langevin transducer or the like as a pushing device A is attached to the female mold 12. When attaching the ultrasonic oscillator 14 to the female mold 12, a flyer 18 is used for winding the wire in the winding region formed by the combination of the male mold 11 and the female mold 12, as shown by the locus 15 in FIG. Install it in a position where it will not interfere with the reciprocating arc movement of the In addition, the ultrasonic oscillator 14 has a female mold 12 and a male mold 1.
A connecting portion 16 with a shaft 17 for releasing from the mold is formed. Of course, the connecting portion 16 is the same as the connecting portion provided in the conventional female mold 12.

Then, as in the conventional case, the shaft 17 is extended and the female die 12 connected to the shaft is coupled to the male die 11, and then only the shaft 17 is retreated. Next, fryer 18
As shown in the locus 15 in Fig. 1, if the wire is made to make a reciprocating arcuate motion, the wire will be guided by the winding guide 13 as in the conventional case.
The volume vAS formed by the combination of the male mold 11 and the female mold 12
Wind it around I area 19. At this time, the ultrasonic oscillator 14 is driven to vibrate the female mold 12, and when the female mold 12 vibrates, the male mold 11 in the coupled state also vibrates. Therefore, even if the wire is in constant contact with the winding guide 13 and not under much tension, and the slip resistance between the wire and the male die 11 or female die 12 is large during winding, The male mold 1 is generated by the vibration of the male mold 11 and the female mold 12 by the sonic oscillator 14.
1 and the female mold 12, thereby allowing the wire to be wound in order from the inner part of the winding guide 19.

3 to 6 show a second embodiment, in which a pushing device A having a pushing plate 22 is provided on a male die 21. That is, the pulse motor 2 is numerically controlled by fixing a supporting substrate 24 to the rear part of the male die 21 (the side that is connected to the female die 23) and on the opposite side, and interposing a mounting plate 25 to the supporting substrate 24.
Install 6. The pulse motor 26 is rotatably connected to a ball screw 30 via timing pulleys 27 and 28 and a timing belt 29. ball screw 30
has one end rotatably supported on the support substrate 24, and the other end rotatably supported on another support substrate 31. Support substrate 31
The male mold 2 is placed at an appropriate distance from the support substrate 24.
It is fixedly installed at the rear of 1. A screwing member 33 provided on the actuating plate 32 is screwed onto the ball screw 30 . The actuation plate 32 has a guide hole into which a guide rod 34.
35 is slidably inserted therethrough to guide reciprocating motion driven by the pulse motor 26.

A plurality of pressing rods 37 are attached to the actuating plate 32, with springs interposed therebetween, which are movable back and forth in the axial direction.

The pressing rod 37 is also supported by the support substrate 31 so that it can move forward and backward. At the tip of the support substrate 31, there is a rotatable piece 38 as shown in FIGS. 3 and 5, and the piece 38 is attached to the arm 3.
It is slidably inserted into the elongated hole 40 of 9. The base end of the arm 39 is rotatably supported on a fulcrum mounting plate 41. Fulcrum mounting plate 4
1 is fixedly attached to the guide rod 42. The guide loft 42 is inserted into the guide hole of the support substrate 31 so as to be freely movable forward and backward in the axial direction. The fulcrum mounting plate 41 is attached to the air cylinder 43. The air cylinder 43 is installed on the support substrate 31. As shown in FIG. 4, the arm 39 can freely move in and out of a groove 44 formed in the surface of the male die 21. The male die 21 is provided with a cam 45, which is a bearing made of a bearing that comes into contact with the arm 39. As shown in FIGS. 3 and 6, the arm 39 has a rod 47 attached to its tip, which can be retracted against the elastic force of a spring 46. At the tip of the rod 47, there is a pushing plate 22 that can swing freely against the elastic force of the spring 49, and the contact surface 2 of the pushing plate 22
2a is formed in a shape that follows the shape of the surface of the female die 23 that comes into contact with it.

Next, the operation of the second embodiment will be explained.
While the wire is being wound around the winding area 48 formed by the male die 21 and the female die 23 in the same manner as in the first embodiment, the arm 39 as well as the pushing plate 22 are moved as shown in FIG. It is moved back from the winding area 48 and immersed in the groove 44.

Then, every predetermined number of turns, the winding operation is stopped, the pushing plate 22 is brought into the winding area within four days, and the pushing plate 22 is used to push the wire into the inner part of the winding area 48. in this case,
First, the air cylinder 43 is operated to move the fulcrum mounting plate 41 forward, thereby causing the shaft support 39a at the base end of the arm 39 to move forward.
When is positioned near the center of the radius of curvature of the female mold 23, the arm 39 performs an opening operation centering on the piece 38, and accordingly the push plate 22 protrudes from the groove 44 into the winding area 48,
The contact surface 22a of the pushing plate 22 contacts the surface of the female die 23. Next, when the pulse motor 26 is driven, the ball screw 30 rotates via the timing pulleys 27 and 28 and the timing belt 29, so the actuating plate 33 moves forward due to the screw engagement between the screw member 33 and the ball screw 30. . As the actuating plate 33 moves forward, the pressing loft 37 also moves forward, so the piece 38 presses the arm 39 while moving inside the elongated hole 40.
As a result, the arm 39 rotates around the shaft support 39a at the base end. This rotation of the arm 39 causes the pushing plate 22 to swing, and its contact surface 22a moves forward toward the inner part of the winding area 48 while following the surface of the female die 23, thereby causing the pushing plate 22 to swing forward. The wire rod is pushed into the inner part of the winding region 48 by the pushing surface 22b. When the pushing of the wire is completed, the pulse motor 26 is reversed to move the pushing rod 37 backward, thereby opening the arm 39, and then opening the arm 39.
3 to move the fulcrum mounting plate 41 backward, the arm 39 makes contact with the cam 45 and rotates in the opposite direction to the above, causing not only the arm 39 but also the pushing plate 22 to become grooved. Immerse yourself in 44. This allows the wire to be wound around the winding region 48. Since the winding region 48 has a curved shape according to the shape of the neck of the cathode ray tube to which the deflection coil is attached, as shown in FIG. The amount of movement is absorbed by the elastic force of the spring 36. The amount of movement of each pushing plate 22 is set based on the pushing rod 37 which does not have a spring 36. The elastic force of the spring 36 allows each pressing rod 3 to be moved without absorbing the amount of movement of the pressing rod 37.
It is also possible to drive every 7 with a separate pulse motor.

Furthermore, it is also possible to attach the ultrasonic oscillator 14 of the first embodiment to the female die 23 so that the ultrasonic oscillator 14 and the push plate 22 can be used in common.

7 to 10 show a third embodiment, in which a pushing device A having a pushing plate 52 is attached to a female die 51.

That is, support plates 53 and 54 are fixed to the female die 51, and a ball screw 55 is rotatably supported on the support plates 53 and 54, and guide rods 56 to 58 are installed thereon. A pulse motor 61 is connected to the ball screw 55. The pulse motor 61 is fixed to the female mold 51 with an attachment Fi 62 interposed therebetween. Further, an actuating plate 59 is screwed onto the ball screw 55. The actuation plate 59 has a threaded member 60 that threads into the ball screw 55, and has guide holes through which the guide rods 56 to 58 are slidably inserted in the axial direction. As shown in FIGS. 7 and 9, the actuating plate 59 has a temporary mounting plate 63.
are fixed with screws, and the arm 64 is rotatably supported on the plate 63. A spring 65 is hooked between the arm 64 and the plate 63. The arm 64 can freely come out and retract from the groove 66 formed in the female die 51 into the winding area 67, and when the arm 64 is retracted from the winding area 67 into the if$66, the receiver consisting of the bearing attached to the female die 51 is moved. It makes contact with the cam 68 and performs a closing action, thereby opening the groove 66.
It's like you're immersed inside. The arm 64 has a long door 0 that retracts in the direction shown in FIG.
2 is rotatably supported in the X direction shown in FIG. A return spring 71 is interposed between the push plate 52 and the Ron door 0. Sub-actuating plates 72, 73 are movably mounted on the guide rods 56, 57 and 57, 58, respectively. Each sub-actuation plate 72, 73 and actuation plate 5
9, springs 74 and 75 are interposed between them. Each sub-actuating plate 72, 73 has the above-mentioned actuating plate 59.
Similarly, the arms 64 each having the push-in plate 52 are attached with the plate 59 interposed therebetween. It is also the same as above that each arm 64 and push plate 52 can move in and out of their own dedicated groove 66, and the receiver can come into contact with a cam 68 and be retracted into the groove 66.

Then, each time the wire is wound a predetermined number of turns within the winding region 67, the winding operation is stopped and the pulse motor 61 is driven to advance the actuating plate 59 and the sub-actuating plates 72, 73. . That is, when the ball screw 55 is rotated by the pulse motor 61, the actuating plate 59 screwed into the ball screw 55 moves forward while being guided by the guide lofts 56-58. When the actuating plate 59 moves forward, the arm 64 moves to the cam 6.
8 is gradually released, the arm 64 opens due to the elastic biasing force of the spring 650, and the pushing plate 52 enters the winding area 67 from within the groove 66 to open the male die 7.
Contact the surface of 6. At this time, the arm 64 comes into contact with the stopper 77 of the mounting plate 63 and is held down so as not to rotate, but as the actuating plate 59 moves forward, the contact surface 52a of the pushing plate 52 follows the surface of the male die 76. When the pushing plate 52 slides toward the inner part of the winding area 67, the push plate 52 swings in the X direction shown in FIG. The loft 70 moves out from within the arm 64 against the elastic bias of the spring 69.

As the pushing plate 52 moves forward toward the inner part of the winding area 67 following the surface of the male die 76, the pushing surface 52b of the pushing plate 52 presses the wire rod wound inside the winding area 67, thereby unwinding the wire rod. Align. It goes without saying that the contact surface 52a of the pushing plate 52 is formed to match the surface shape of the male die 76. When the actuation plate 59 moves forward, the springs 74.75
The sub-operation vi72.73 also guide rods 56-5 through
Along with this, the pushing plate 52 slides on the surface of the male mold 76 and presses the wire rods in the winding region 67 to align them in exactly the same manner as described above. At this time, the springs 74 and 75 are for absorbing the difference in the amount of movement of each pushing plate 52 when it moves while sliding on the surface of the male mold 76, depending on the pushing plate 52. .

The amount of movement of each pushing plate 52 is set based on the amount of movement of the actuating plate 59. After pressing the wire in the winding area 67 with the pushing plate 52, if the pulse motor 61 is reversed,
With the return movement of the actuating plate 59 and the auxiliary actuating plates 72 and 73, each push-in Fi1.52 returns, and the arm 64 makes contact with the cam 68 and closes against the elastic bias of the spring 65,
As a result, each pushing plate 52 is recessed into the groove 66.

Also in the third embodiment, the ultrasonic oscillator 14 of the first embodiment is attached to the female mold 51, and the wire is wound in the winding region 67 while the female mold 51 is vibrated by the ultrasonic oscillator 14. Can be used together.

11 to 14 show a fourth embodiment, in which the pushing device A is provided with flexibility by a close-contact square wound spring 81,
A pushing piece 82 at the tip of the close-contact square wound spring 81 presses the wire in the winding region 83 toward the inner part. That is, the close-contact square wound spring 81 and the pushing piece 82 are attached using the conventionally used semi-formed plate 84 shown in FIG. V-shaped molding Fi84 is male type 8
5 and the female die 86, and before opening the male die 85 and the female die 86, the supporting plates 87 and 88 and their attachments are removed using an air cylinder or the like. The wire rod 89 is advanced through the rod 89 to pressurize the wire rod in the winding region 83. A plurality of grooves 90 are formed on the surface of the semi-formed plate 84, and a close contact square wound spring 81 is slidably housed in each groove 90. A pushing piece 82 is fixedly provided at the tip of each close-contact square coil spring 81. Each close-contact square coil spring 81
is connected to a linear motion guide member 92 via a connecting member 91 at its base end. The linear motion guide member 92 is composed of a linear motion bearing and a moving member, and is for guiding and supporting the forward and backward movement of the pushing piece 82, and is attached to the semi-formed plate 84 of C. The proximal end of the longitudinal loft 93 protruding from the linear motion guide member 92 is connected to an actuating rod 95 through a member 94 . Each actuating rod 95 is attached to an actuating plate 96. For this attachment, any one of the actuating lofts 95 is fixed to the actuating plate 96, and the other actuating rods 95 are elastically biased by a spring 97 against the actuating plate 96. Mounted so that it can move in the axial direction against the The pushing amount of the pushing piece 82 is based on the pushing piece of the actuating rod 95 fixed to the actuating plate 9G. The actuating plate 96 has a threaded member 98 that threads into a ball screw 99 . ball screw 9
Reference numeral 9 is rotatably supported on the support plates 87 and 88, and connected to a pulse motor 103 via timing pulleys 100 and 101 and a timing belt 102. The actuation Vi96 is guided by guide rods 104 and 105 installed between the support plates 87 and 88, and the ball screw 99
It moves back and forth by the rotation of.

In the fourth embodiment, the winding operation is stopped and the pulse motor 103 is driven every time the wire is wound around the winding region 83 by a predetermined number of turns.

The ball screw 99 is rotated by the drive of the pulse motor 103, and the actuating plate 96 moves forward by a predetermined amount. When the actuating plate 96 moves forward, each close-contact square coil spring 81 moves forward within the groove 90 while being guided by the linear motion guide member 92, and inserts the pushing piece 82 into the winding region 83, thereby removing the winding. The wire already wound in the area 83 is pressed. At this time, the tight square wound spring 81 bends along the shape of the winding area 83 and winds the pushing piece 82! a? Although it is pushed into the J area 83, there are many cases in which the winding area 83 becomes narrower as it goes deeper. In this case, male type 85 or female type 8
6, an escape groove 106 for the tight square coil spring 81 and the pusher piece 82 is formed. Each pushing piece 8
Although the pushing amount of 2 is different, this difference can be calculated by
Absorb with 7. After the pushing piece 82 finishes pressurizing the wire rod in the winding region 83, the pulse motor 103 is reversed to move the actuating plate 96 and the contact square coil spring 81 back, thereby pushing the pushing piece 82 into the groove 90. immerse yourself in it. Volume 'f! Once the winding of the wire rod in the A area 83 is completed, the entire supporting members 87, 88, etc. are advanced by an air cylinder or the like, and the wire rod inside the winding area 83 is moved forward by the V-shaped forming plate 84, as in the conventional case. Of course, the wire (deflection coil) can be molded and then released from the mold as a deflection coil. In this case as well, the ultrasonic oscillator 14 of the first embodiment can be attached to the female mold, and the vibration of the female mold by the ultrasonic oscillator 14 can also be used.

``Effects of the Invention'' As described above (according to the winding machine for deflection coils), the problem that has often occurred in the past is that the slip resistance between the coil shape and the wire rod causes This effectively eliminates the problem of not being able to wind the windings in a sequential order and getting caught in the middle.Especially in recent years, when creating an airspace for correcting magnetic properties at each predetermined number of turns to improve magnetic properties, errors in the number of turns can be avoided. It is extremely convenient that an airspace for correcting the magnetic characteristics can be formed without any need for the magnetic property correction.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a main part showing a first embodiment of a winding machine for a deflection coil according to the present invention, FIG. 2 is a front view of a main part of the winding machine for a deflection coil shown in FIG. 1, and FIG. FIG. 4 is a cross-sectional view of the main parts of the deflection coil winding machine of the second embodiment, FIG. 4 is a cross-sectional view of the main parts of the deflection coil winding machine of FIG. 3, and FIG. 5 shows the arm and pressing rod of FIG. 6 is a sectional view of the main parts showing the arm and push plate of FIG. 3, and FIG. 7 is a plan view of the main parts of the deflection coil winding machine according to the third embodiment. Figure 8 is a front view of the main parts of the actuating plate and sub-actuating plate in Figure 7 with the ball screw omitted, Figure 9 is a view taken along the line I-1 in Figure 8, and Figure 10 is the FIG. 11 is a plan view of the main part of the deflection coil winding machine showing the fourth embodiment, and FIG. 12 is the main part of the deflection coil winding machine shown in FIG. 11. Main part front view,
Fig. 13 is a diagram showing the tip of the V-shaped molding plate in Fig. 11, Fig. 14 is a perspective view of one side of the V-shaped molding plate in Fig. 13, seen from the bottom side, and Fig. 15 is a conventionally used FIG. 16 is a perspective view showing the coil mold in the coupled state shown in FIG. 15, and FIG. 17 is a perspective view showing the main parts of the coil mold shown in FIG. 16. , FIG. 18 is an explanatory diagram showing a state in which a wire is caught and wound around a coil mold in a conventional deflection coil winding machine. A... Pushing device 11.21, 76.85... Male die 12.23.51.86... Female die 14... Ultrasonic oscillator 39.64... Arm 2
2.52...Pushing plate 81...Tight square wound spring 82
...Pushing piece 22a Fig. 13 Fig. 14 Fig. 16 Fig. 17

Claims (4)

[Claims] (1) A deflection coil winding machine equipped with male and female coil types that can be freely separated from each other, comprising a pushing device for pushing the wire to be wound into the winding area of the male and female coil types. A winding machine for deflection coils, which is characterized by: (2) The deflection coil winding machine according to claim 1, wherein the pushing device comprises an ultrasonic oscillator that vibrates either a male or a female coil type. (3) The deflection coil according to claim 1, wherein the pushing device comprises a pushing plate that is pushed into the winding area along the shape of the male and female coil shapes by the linear and swinging motion of the arm. winding machine. (4) The deflection coil winding according to claim 1, wherein the pushing device comprises a pushing piece that is pushed into the winding area along the shape of the male and female coil shapes by the rectilinear movement of the coil spring. Line machine.