JPS63150831A - Winding machine for horizontal deflecting coil for cathode-ray tube - Google Patents

Abstract

PURPOSE:To obtain the necessary power in a small occupancy space and reliably protrude or retreat pins by protruding or retreating the pins arranged on a former to form apertures on a coil with a cam mechanism. CONSTITUTION:Pins 13-15 provided on one winding former 11 to form apertures X, X'-Z, Z' on a coil are protruded or retreated by cams 25-27 rotated by a motor 29 and flat gears 31, 29. The necessary power can be obtained in a small occupancy space by this cam mechanism not using an air cylinder or the like, the protrusion or retreat of pins is reliably performed, and the coil is manufactured with a small structure without interrupting the winding.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a winding machine for a horizontal deflection coil for a cathode ray tube, and more particularly to a winding machine for a saddle-shaped horizontal deflection coil for a cathode ray tube.

[Conventional technology]

A winding machine for horizontal deflection coils of cathode ray tubes and saddle-type horizontal deflection coils has two formers that form a winding frame related to the form of the coil to be wound, and two formers that are combined and separated, and then combined. It is equipped with a mechanism for rotating the winding frame in the state and a means for supplying the wire to the winding frame, and after the formers are combined to form a winding, the formers are separated,
It is designed to discharge the coil that has been wound up.

4 and 5 show the area around the former in the winding machine. The formers a and b are chevron-shaped and have a recess at the top. These are combined into a cross shape by having their chevron-shaped surfaces face each other and the concave portions press together, and the winding frame for the saddle-shaped winding is formed at the intersection of the two formers. The surface of the former is actually entirely composed of a curved surface.

The former is fixed to rotary tables c and d. The turntables are attached to spindles e and f, respectively. The end of the spindle e, which is not shown, is driven by an electric motor or the like. A wire clamp g made of a pin is fixed to the rotating table C. The nozzle h is located in almost the same plane as the pin and is arranged independently of the former and the rotary table, and moves along the rotation center axis X of the former between position A shown by the solid line and position B shown by the chain line. It is now possible to do so. Wire i passes from the wire coil through nozzle h and is fixed at its end to pin g.

The winding is carried out by a turntable rotating together with the former, and four arms j, m and n forming a cross are connected to pins g on the wire.
and the nozzle h, the wire slides down the slope of each arm and is wrapped in a saddle shape around the intersection of each arm.

The drawing shows wire i inserted into groove 0 at the root of arm j, just before it contacts the next arm k. nozzle h
is at position B shown by the chain line when the wire contacts arm k, and is moved to position A shown by the solid line by the time it contacts arm k. The wire is forced into the groove 0 by movement of the nozzle h. When arm k crosses wire i, the wire slides down the slope of the arm and ? n p, and is pushed into the groove p by the movement of the nozzle.

As the former continues to rotate, the arm m
, n successively cross the wire and guide the wire into grooves q and r, and the nozzle h is at position B when wire i contacts arm m, and at position A when wire
, and the wire is pushed into the groove q+r.

As the former continues to rotate, the wires i are similarly wound around the intersections of the arms one after another.

The wire i is then wound around the base of the arm in a saddle shape. That is, after the wire passes through groove 0 of arm j, it heads toward groove p along the side of the arm, and passes through groove p.
After passing through, it passes along the opposite side of arm j to groove q, passes through groove q, then goes along the side of arm to groove r, passes through groove r, passes through the side of arm m, and It will enter groove 0 of arm j again.

For example, the horizontal deflection coil shown in Figures 6 and 7, which has several holes formed in the part opposite to the neck of the glass tube of the cathode ray tube, is also similar. The wire is then wound. However, in the winding machine for this coil, in order to form the holes, the former a is arranged corresponding to the holes x-z, x' to 2' of the coil, and can be moved in and out of the space where the coil is formed. The former has a built-in pin that protrudes from the former in proportion to the number of turns to form a winding.

This will be explained using FIGS. 4 and 5. Forma a,
b corresponds to the coil, and the surface forming the winding frame is constituted by a curved surface. When the winding is done as described above, when the preset number of turns is reached,
A pin forming holes x, x' is inserted into groove 0. The wire passes through groove 0 while contacting these pins, is changed direction by pin X' located on the rear side in the direction of rotation of the former, is introduced into groove p via the side of arm b, and is inserted into hole x.
, x' are formed. When the next set number of turns is reached, the hole y
, y', and when the third set number of turns is reached, the pin forming the hole z, z' is inserted into groove 0, leaving the previous pin, and the wire is changed in the same direction. Change the hole y.

y' and z, z' are formed.

[Problem that the invention seeks to solve]

In the latter winding machine, the pins are moved in and out using a pneumatic cylinder built into the former. These pneumatic cylinders require a large amount of power to pull out all the pins because the wire is wrapped tightly around the pins, but the size of the cylinder increases,
Something with the necessary power cannot be built into the space of the former. For this reason, when taking out the wound coil from the former, it is often necessary to stop the machine and have the operator help remove the pins.

The present invention allows the pins to be inserted and removed without the assistance of an operator. An improved winding machine for a saddle-shaped horizontal deflection coil for a cathode ray tube is provided.

[Means for solving problems]

The winding machine of the present invention moves the pins using a mechanism that includes a cam plate and an electric motor, so that the necessary mechanism can be incorporated into a narrow space within the former, and the pins can be reliably taken in and taken out. This is how it was done.

In an embodiment of the present invention, between the cam plate and the pin, there is provided a follower for the cam plate, a swingable arm, and a spring attached to the arm to bring the follower into contact with the cam plate. A means is provided in which the follower is attached to the arm across the center of swing, and the pin is directly driven by the cam plate so that the pin constitutes a part of this means. It's okay.

Examples of the winding machine of the present invention are shown in FIGS. 1 to 3 below.
This will be explained with figures.

Embodiment C] In FIG. 1, reference numeral 11 indicates a former. Although only one former is shown, it consists of two formers. Each former is chevron-shaped and has a recess near the top of the mountain, and the former shown in the drawing is combined with the former not shown in the drawing by matching the recesses to form a cross, and both saddle-shaped winding frames are It is formed in the contact area of the dent in the former. The formers are supported by a rotary table 12, and by moving the rotary table relative to another former, the formers are combined and separated, and the formers are rotated around the intersection while being connected by the rotary table 12. It looks like this.

Although not shown, the wire passes through a nozzle via a tension mechanism, and its end is fixed to a wire clamp on a rotating table. These nozzles and wire clamps are located in the middle of the former and on a plane perpendicular to the former's rotation center axis, and as the former rotates, the wire is sequentially attached to each arm forming a cross. positioned to make contact. As the wire makes contact with each arm, it slides down the mountain slope toward the base of the arm, enters the gap formed between the arms by the indentation, and enters the spool formed at the contact point of the indentation. Wrapped in a saddle shape.

In this winding machine, as in the conventional winding machine of this kind, the former 11 has two sets of pins 13 to 15 and 13' to 15'.
and a mechanism built into the former 11 for moving the pin relative to the winding between a position in which it projects from the former and a position in which it is retracted into the interior of the former. During winding, these pins are made to protrude so that holes are formed in the wound coil. but,
In the winding machine according to the present invention, movement of the pin is achieved by a rotatable cam plate, a driven means disposed between the cam plate and the pin, and an electric motor that rotates the cam plate.

Figures 2 and 3 show details of this mechanism.

A substrate 21 fixed inside the former 11 constitutes a base together with two support plates 22 and 23 attached at right angles to both ends of the substrate.

Camshaft 2 so as to bridge support Fji22.23
4 is placed. The camshaft is held in bearings that support it at both ends. Cam plates 25 to 27 and a spur gear 28 are engaged with and fixed to the camshaft. An electric motor 29 is installed on the support plate 23, and a spur gear 31 is attached to a portion of the output shaft that passes through a hole in the support plate. Spur gear 31 meshes with spur gear 28 on the camshaft and allows the camshaft to be rotated by the electric motor.

Followers 32-34.32' for cam plates 25-27
~34' are arms 35~37.35'~37
′ is attached to rotate on its own axis. The arms are each coupled to axes 38, 38' so that each can swing about these axes.

These shafts are held at both ends by support plates 22,23.

The contact between the cam plate and the follower is made by each arm and the base plate 2.
1 is forced by a coil spring disposed between the two. In the drawings, only the coil spring associated with arm 35, 35' is designated by the reference numeral 4L 41'. All coil springs are positioned by inserting both ends into recesses provided in the board and arm.

Hole of the horizontal deflection coil, i.e. hole x of the coil shown in Figure 6
-z, pins 13 to 15 and 13' to 15' for forming x' to 2' are connected to the substrate 21 and the former 11, respectively.
and each end of the arm 35-37° 35'-37' is slidably inserted into a hole provided in the arm 35-37. connected. Of the pins, pin 14'
and 15' are not shown, but are installed behind pin 13' in the same manner as pins 13-15.

In this mechanism, when the camshaft 24 is rotated by the electric motor 29, the cam plates 25-27 are rotated by the arms 35-37, each having a follower 32-34 associated with the cam plate.
゜Swing pins 13-15 in sequence from 35' to 37'
.

13' to 15' can be sequentially slid.

More specifically, when the number of turns of the coil reaches the value associated with the hole, for example, the portion of the cam profile of the cam plate 25 furthest from the center of rotation is the follower 32 .
The camshaft 24 is moved by the electric motor 29 so as to contact the camshaft 32'.
The motor 29 is stopped when the pins 13 and 13' protrude from the former 11, and this state is continued until the winding is finished. After the winding is finished, the cam plate 25 is rotated. The camshaft 24 is rotated by the electric motor 29 so that the part of the cam profile closest to the center of rotation contacts the follower 32, 32', causing the pin to be drawn into the interior of the former 11. As for the remaining pins 14°14' and 15.15', the camshaft 24 further rotates, and the cam plate 26.27 moves to the arm 36.36'.
and 37, 37' are sequentially swung to make them protrude from the former 11 one after another, maintain this state until the winding is finished, and then be drawn into the former 11.

The motor 29 is rotated by, for example, setting the number of turns for protruding the pins 13 to 15 on a preset counter, and activating the motor 29 by the output of the preset counter each time a predetermined number of turns is reached.

The electric motor 29 is stopped by a control cam plate on the camshaft 24 operating a limit switch in conjunction with the rotation of the cam plates 25 to 27.

The cam plates 44, 45 are for this purpose. Cam plate 44
is tightly fitted and fixed to the spur gear 28. A limit switch (not shown) is supported by a mounting plate fixed to the substrate 21, an actuator for opening and closing the contacts is in contact with the cam plate 44, an electric motor 29 rotates the cam shaft 24, and the cam plates 25 to 27 is pin 13~15°13'~1
Each time 5' is extended, the cam plate 44 sequentially activates the limit switches to stop the motor. In addition, the cam plate 45 is such that the cam shaft 24 has all the pins 13
~15. This is for stopping the electric motor 29 when it is rotated to draw 13'~15' into the former 11, and is attached to the spur gear 28 coaxially with the cam plate 44. A limit switch for this cam plate is also arranged on the mounting plate.

The winding of the saddle-shaped horizontal deflection coil shown in FIGS. 6 and 7 is done from the inside. When the number of turns reaches the value forming the first hole X, X', the pin 13.13'
The subsequent windings will be made on the outside of this pin. Similarly, holes y, y' where the number of turns remains
and each time a value forming z, z' is reached, pin 14
．． 14' and 15.15' are extruded one after another. When the winding is completed, a press plate protruding from the inside of the former (not shown) presses the coil and presses all the pins 13.
~15. Leave 13'~15' in this state and convert it to Forma 1.
1, then the press plate is retracted,
The former (not shown) is separated, and the coil is taken out from the former 11.

The winding machine according to the invention thus has pins 13-15.
13' to 15' are retracted by an electric motor 29 which occupies a smaller space than a pneumatic cylinder and has the necessary power, and the rotational torque of the electric motor is increased by reduction means such as spur gears 28, 31. Therefore, the pin can be reliably pulled out from the coil. Furthermore, the cam plates 25 to 27 are connected to the former 11.
A rotatable cam shaft 24 arranged parallel to the rotation center axis of the
An electric motor 29 is arranged parallel to the rotation center axis of the former 11, and rotates the camshaft 24 through the spur gear 28.31 to shorten the overall length and rotate the former 11 along the longitudinal direction. Since the constituent elements are arranged in such a manner that they can be easily accommodated in the internal space of the former 11, which is narrow and has a small depth.

[Effects of the Invention] As described above, the winding machine for horizontal deflection coils for cathode ray tubes according to the present invention moves the pins using a mechanism having a cam plate and an electric motor, and can move the pins in a small occupied space. Since the necessary power is obtained to insert and remove the pin and the pin can be reliably inserted and removed, winding can be done continuously without interrupting the winding work. . It's about productivity.

[Brief explanation of the drawing]

The drawings show an embodiment of the winding machine of the present invention, and Fig. 1 is a side view of the former, Fig. 2 is an enlarged bottom view of the mechanism for moving the pin in Fig. 1, and Fig. 3 is an enlarged bottom view of the mechanism for moving the pin in Fig. 1. This is the drawing on the left. Figure 4 is a side view of the area around the former in a conventional winding machine, Figure 5 is a bottom view taken along the line V-V in Figure 4, Figure 6 is a rear circle showing an example of a horizontal deflection coil, and Figure 7 is is the same side view. 11...Former, 12... Former rotation mechanism,
13-15, 13'-15'...pin, 24...
Camshaft, 25-27...Cam plate, 28.31...Spur gear, 29...Electric motor, 32-34.32'-34'
...Follower, 35-37.35'-37'...Arm, 41-43.41'-43'...Spring, x
-z, x'~z'''' Hole in the coil.

Claims (1)

[Claims] 1. A winding machine for a saddle-type horizontal deflection coil having several holes in a part opposite to the neck of a glass tube of a cathode ray tube, the winding machine comprising: two formers each having a complementary shape to form a winding frame, a mechanism for supporting these formers so that they can be combined and separated and for rotating the combined formers, and a mechanism for rotating the combined formers; A pin correspondingly arranged on one side of the former and a mechanism built into the former having the pin for moving the pin in relation to the winding between a position protruding into the winding frame and a position retracted from the winding frame. a pin moving mechanism, the pin moving mechanism comprising a rotatable cam plate, a driven means disposed between the cam plate and the pin, and an electric motor for rotating the cam plate; A winding machine for horizontal deflection coils for cathode ray tubes. 2. The driven means includes a follower against the cam plate, a swingable arm to which the follower and pin are attached across the center of swing, and a spring attached to the arm to bring the follower into contact with the cam plate. Claim 1 having
The winding machine described in section.