JP3720174B2 - Winding machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a winding machine that forms a coil by winding a magnet wire around a wound body such as a motor, a deflection tube of a cathode ray tube, and a relay while applying a predetermined tension.
[0002]
[Prior art]
In this type of conventional winding machine, for example, as shown in FIG. 7 in JP-A-1-78638, a magnet wire 2 supplied from a wire bobbin 1 is deflected via a flyer 3 as a winding body. The coil 5 is formed by being wound around the winding frame 4. The tension applied to the magnet wire 2 is detected by a potentiometer 6 provided in the middle of the path between the flyer 3 of the magnet wire 2 and the wire bobbin 1, and the tension device 7 controls the tension to be always constant. ing. Although not shown, when the tension detecting means as described above is not provided, a method in which an operator periodically detects the tension by pulling the magnet wire 2 with a spring or the like from the flyer 3 portion. ing.
[0003]
[Problems to be solved by the invention]
Since the conventional winding machine is configured as described above, a frictional force is generated in the path from the potentiometer 6 through the flyer 3 to the winding frame 4 of the deflection yoke. The detected tension is different from the tension applied to the magnet wire 2 when the deflection yoke is actually wound on the winding frame 4, and the tension setting felt and the flyer 3 in the winding path are worn out. If the sliding property and wire diameter of the magnet wire 2 vary, or if the pulling angle of the magnet wire 2 from the flyer 3 changes during winding due to the shape of the winding yoke 4, the tension changes over time. Quality control is difficult, and even if it is attempted to control the tension to maintain the target value by feedback control during winding, accurate tension control There is a problem that can not be. Further, when the operator measures the tension with a spring alone, the magnet wire 2 is pulled out at a speed different from the actual winding speed, and since it is not an in-line measurement, it is impossible to perform an accurate tension control as described above. There was a problem.
[0004]
The present invention has been made to solve the above-described problems, and a winding machine capable of accurately controlling tension by measuring the tension actually applied to the magnet wire when winding the wound body. Is intended to provide.
[0005]
[Means for Solving the Problems]
The winding machine according to claim 1 of the present invention applies a predetermined tension to the supplied magnet wire by the tension control means , guides it to the nozzle unit through the guide hole of the rotating shaft, and from the nozzle of the nozzle unit to the wound body. In a winding machine that forms a coil by winding, acting force detecting means that is disposed on a fixed support base that fixedly supports the wound body and detects the acting force generated in the wound body when the magnet wire is wound, and action Tension calculating means for calculating the tension applied to the magnet wire based on the acting force detected by the force detecting means, and the tension for controlling the tension applied to the magnet wire so that the tension calculated by the tension calculating means becomes a desired value. And a control means.
[0006]
A winding machine according to a second aspect of the present invention is the winding machine according to the first aspect, wherein the acting force detecting means is slidably supported in the X direction and pressed against the force sensor arranged at one end with a predetermined pressure. A first detection shaft, a second detection shaft that is supported by a force sensor that is slidably supported in the Y direction and is arranged at one end, and a slidably supported in the Z direction that is supported at one end. The force sensor provided is provided with a third detection shaft that is pressed with a predetermined pressure, and is attached to the lower surface of the fixed support frame.
[0007]
According to a third aspect of the present invention, there is provided a winding machine according to the first or second aspect, wherein a signal from the acting force detecting means to the tension calculating means is transmitted wirelessly.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
Embodiments of the present invention will be described below with reference to the drawings. 1 is a front view showing a part of the configuration of the winding machine according to Embodiment 1 of the present invention in section, FIG. 2 is a front view showing the configuration of the acting force detecting means shown in FIG. 1, and FIG. 4 is a front view showing the configuration of the deflection yoke shown in FIG. 4, FIG. 4 is a diagram showing a process of forming a coil by winding a magnet wire around the winding yoke of FIG. 3, and FIG. FIG. 6 is a front view showing a configuration of a main part of a winding machine using an acting force detecting means different from that shown in FIG. 1.
[0009]
In the figure, 7 is a winding frame of the deflection yoke, 8 is a fixed support base for fixing and supporting the winding yoke 7, and 9 is an action force detecting means mounted on the lower surface of the fixed support base 8. As shown, force sensors 13, 14, 15 such as load cells, which are supported by the linear guides 10, 11, 12 so as to be slidable in the X, Y, Z directions, respectively, are respectively disposed on one end side. The first detection shaft 16, the second detection shaft 17, and the third detection shaft 18 are pressed with a predetermined force by a preload spring or the like.
[0010]
19 is a wire bobbin in which a magnet wire 20 is wound and stored, and 21 is a main body slidably supported in a direction shown by an arrow A in FIG. Is formed. Reference numeral 24 denotes a pair of bearings installed at both ends of the through hole 21a. Reference numeral 25 denotes a rotary shaft rotatably supported by the bearings 24 and 24 as indicated by an arrow B in the figure. A guide hole 25a for guiding is formed penetrating from one end side to the other end side.
[0011]
26 is a first gear fixed to the outer periphery of one end of the rotary shaft 25, 27 is a drive motor fixed to the main body 21, and 28 is fixed to the rotary shaft of the drive motor 27 and meshed with the first gear 26. A second gear 29 is a guide roller disposed on the exit side of the guide hole 25a of the rotating shaft 25 and guides the magnet wire 20, and 30 is disposed on the other end side of the rotating shaft 25 and includes a nozzle 31 at the tip. The nozzle unit is slidably attached in the direction indicated by arrow C in the figure. Reference numeral 32 denotes a tension mechanism as a tension control means composed of the electromagnetic brake 33 and the felt 34, and 35 denotes a tension calculation means for calculating the tension applied to the magnet wire 20 based on the acting force detected by the action detecting means 9.
[0012]
Next, the operation of the winding machine in the first embodiment configured as described above will be described.
First, the magnet wire 20 is taken out from the wire bobbin 19, passed through the felt 34 of the tension mechanism 32 and the electromagnetic brake 33 in this order, and penetrates from one end side to the other end side of the guide hole 25 a of the rotating shaft 25 through the guide roller 29. Guided to the nozzle 31 of the nozzle unit 30. Next, the drive motor 27 is driven, and the rotary shaft 25 is driven to rotate through both the first and second gears 26 and 28. Then, the nozzle unit 30 disposed on the other end side of the rotary shaft 25 rotates around the rotary shaft 25, and the nozzle 31 attached to the tip of the nozzle unit 30 circulates around the reel 7 and is necessary. Accordingly, the magnet wire 20 is wound around a predetermined position of the winding frame 7 by moving in a direction indicated by arrows A and C in FIG. 1 by a drive source (not shown), and a deflection coil 36 as shown in FIG. It is formed.
[0013]
On the other hand, the acting force acting on the winding frame 7 is detected by the acting force detection means 9 in a state where the magnet wire 20 is wound around the winding frame 7 as described above. That is, for example, when the acting forces F _X and F _Z act in the direction as shown in FIG. 5, the first detecting shaft 16 and the third detecting shaft 18 act along the linear guides 10 and 12, respectively. _X, presses the respective force sensors 13, 15 moved by corresponding to the value of _{F Z,} each acting force _F X from each force sensor 13 and 15, the value of _{F Z} is output. In the above description, the case where the acting forces F _X and F _Z are applied has been described. However, there is actually a position where the acting force F _Y acting in the Y direction is actually generated. the detection axis 17 presses the force sensor 14 moved by corresponding to the value of the applied force F _Y along the linear guide 11, the value of the acting force F _Y from the force sensor 14 is output.
[0014]
The values of the acting forces F _X and F _Y output in this way are input to the tension calculating means 35. For example, in the case shown in FIG. The acting force F applied to the winding frame 7 and the tension T applied to the magnet wire 20 are calculated.
F = √ (F _X ² + F _Z ² ) (1)
T = F / sin45 ° (2)
The tension T calculated in this way is input to the tension mechanism 32, and the tension mechanism 32 controls the tension T to be a predetermined value by adjusting the current of the electromagnetic brake 33. To do.
[0015]
As described above, according to the first embodiment, the acting force detecting means 9 mounted on the lower surface of the fixed support base 8 detects the acting force in each direction acting on the winding frame 7, and based on the detected value. Since the tension T applied to the magnet wire 20 is calculated by the tension calculating means 35, and the tension T calculated by the tension mechanism 32 as the tension control means is controlled to be a preset desired value. Even if the frictional force fluctuates in the path from the tension mechanism 32 to the wire bobbin 19 due to factors such as surface roughness and dirt, the slipperiness of the magnet wire 20 and the pulling angle from the nozzle 31, it is bothered by this. It is possible to perform accurate tension control without any problems.
[0016]
Furthermore, as shown in FIG. 6, each acting force acting on the reel 7 may be detected using, for example, a commercially available multi-force load dynamometer or a three-component force sensor as the acting force detection means 37. The action force detecting means 37 can be configured easily and inexpensively as well as obtaining the same effect as described above.
[0017]
【The invention's effect】
As described above, according to the first aspect of the present invention, a predetermined tension is applied to the supplied magnet wire by the tension control means, and the magnet wire is guided to the nozzle unit through the guide hole of the rotating shaft, and is wound from the nozzle of the nozzle unit . In a winding machine that forms a coil by being wound around a body, acting force detection means that is disposed on a fixed support base that fixedly supports the wound body and detects an acting force generated in the wound body when the magnet wire is wound , A tension calculating means for calculating the tension applied to the magnet wire based on the acting force detected by the acting force detecting means, and controlling the tension applied to the magnet wire so that the tension calculated by the tension calculating means becomes a desired value. Therefore, a winding machine capable of accurate tension control can be provided.
[0018]
According to a second aspect of the present invention, in the first aspect , the acting force detecting means is slidably supported in the X direction and is pressed against the force sensor disposed at one end with a predetermined pressure. A detection shaft, a second detection shaft that is supported at a predetermined pressure by a force sensor that is slidably supported in the Y direction, and is slidably supported in the Z direction and disposed at one end. Since the force sensor is provided with a third detection shaft that is pressed with a predetermined pressure and is attached to the lower surface of the fixed support frame, a winding machine capable of accurate tension control can be provided.
[0019]
According to the third aspect of the present invention, in the first or second aspect , since the signal from the acting force detecting means to the tension calculating means is transmitted wirelessly, it can be easily applied to an existing winding line. Thus, a winding machine capable of accurate tension control can be provided.
[Brief description of the drawings]
FIG. 1 is a front view showing a part of a configuration of a winding machine according to Embodiment 1 of the present invention.
FIG. 2 is a front view showing the configuration of the acting force detection means shown in FIG.
3 is a front view showing a configuration of a deflection yoke shown in FIG. 1. FIG.
4 is a diagram showing a step of forming a coil by winding a magnet wire around the winding frame of the deflection yoke in FIG. 3; FIG.
5 is a diagram showing a relationship between forces acting on a winding yoke winding frame when the magnet wire shown in FIG. 4 is wound. FIG.
6 is a front view showing a configuration of a main part of a winding machine using an acting force detection unit different from that shown in FIG. 1. FIG.
FIG. 7 is a front view showing a configuration of a conventional winding machine.
[Explanation of symbols]
7 reel, 8 fixed support base, 9, 37 acting force detection means,
10, 11, 12 linear motion guide, 13, 14, 15 force sensor, 19 wire bobbin,
20 magnet wire, 25 rotating shaft, 27 drive motor, 30 nozzle unit,
31 nozzles, 32 tension mechanisms (tension control means), 35 tension calculation means,
36 Deflection coil.

Claims (3)

In a winding machine that applies a predetermined tension to the supplied magnet wire by tension control means , guides it to the nozzle unit through the guide hole of the rotating shaft, and forms a coil by winding it from the nozzle of the nozzle unit to the winding body, An action force detecting means which is disposed on a fixed support base for fixing and supporting the wound body and detects an acting force generated in the wound body when the magnet wire is wound, and an action detected by the acting force detection means Tension calculating means for calculating the tension applied to the magnet wire based on the force, and tension control means for controlling the tension applied to the magnet wire so that the tension calculated by the tension calculating means becomes a desired value. A winding machine characterized by that. The acting force detection means is slidably supported in the X direction and is supported at one end by a first detection shaft pressed at a predetermined pressure by a force sensor disposed at one end and disposed at one end. A second detection shaft that is pressed against the force sensor by a predetermined pressure, and a third detection shaft that is supported by the force sensor that is slidably supported in the Z direction and is disposed at one end with a predetermined pressure. The winding machine according to claim 1, wherein the winding machine is mounted on a lower surface of the fixed support frame. 3. A winding machine according to claim 1, wherein a signal from the acting force detecting means to the tension calculating means is transmitted wirelessly.

Images