JPH0750659B2 - Wire entanglement device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire material suitable for use when a terminal of a wire material such as a wire or a lead wire wound around a coil bobbin is entangled with a terminal pin erected in the coil bobbin. Regarding the binding device.

[0002]

2. Description of the Related Art Conventionally, for example, in the case where a terminal (end) of a wire wound around a coil bobbin is wound around a pin-shaped terminal erected on the coil bobbin to be entangled, the following three methods can be considered. There is. In the first method, the end of the wire is cut into an appropriate length in advance with a cutter or the like, and then this end is wound around the terminal. In the second method, as shown in FIGS. 10A to 10C, the wire rod 21 is supplied through the nozzle 22 and wound around the bobbin 24 and the like, and after the winding is completed, the nozzle 22 is rotated around the terminal 23 to thereby wire the wire rod. The terminal is wound around the terminal 23, and then the wire 21 is cut with a cutter or the like. In the third method, the end of the wire 21 is connected to the terminal 2 in the same manner as the second method.
After being wound around the wire 3, the wire 22 is cut by pulling the nozzle 22 away from the terminal 23 in a state where the wire 21 is locked so as not to come out from the nozzle 22. In addition, JP-A-55-9
As disclosed in Japanese Patent No. 1812, two coaxial cylindrical solids are used.
By cutting the wire with a fixed blade and a rotary blade, and rotating the rotary blade
There are also things that tie the wire rod around the pin.

[0003]

In the first method described above, the terminal 23 is held while holding the end of the short wire 21 after cutting.
It has to be wrapped around and the terminal that holds it is terminal 2
It does not wrap around 3, and it is easy to remain as a beard, and the mechanism becomes complicated. In the second method, since the terminal is wound around the terminal 23 and then cut with a cutter or the like, the terminal remains as a beard by the thickness of the blade of the cutter. In the third method, since the wire rod 21 is pulled and cut, the cutting position is not constant and a long beard remains. As described above, there is a problem that any of these methods requires these processing operations because the beard remains on the terminal. Further, in any of the methods, the entanglement and cutting of the wire rod end are sequentially performed, and there is a problem that efficiency is deteriorated. The present invention provides a wire entanglement device that solves the above-mentioned problems. Also, in Japanese Patent Laid-Open No. 55-91812.
For the method shown, the area of the part to be inserted into the slant groove of the wire is
Narrow, and align the mandrel and the rotary sleeve's inclined groove
There is a difficulty in inserting the wire.

[0004]

According to the present invention, a fixed blade 2 having a substantially disk shape is provided at the end of a hollow fixed shaft 1, and the fixed shaft 1 is fixed.
The rotary shaft 4 is rotatably housed therein, and a rotary blade 5 is provided at the end thereof.
The rotary blade 5 is provided adjacent to the fixed blade 2, the rotary blade 5 is formed into a substantially cylindrical shape, and the length (height) in the extension direction of the rotary shaft 4 is selected as H. Groove 7 for guiding the wire
And the terminal hole 9 into which the terminal pin 8 is inserted is formed on the end face.

[0005]

In this structure, for example, the terminal pin 8 of the coil bobbin is inserted into the terminal hole 9 of the rotary blade 5, and the wire rod 10 wound around the coil bobbin is inserted into the groove 7 of the rotary blade 5 to form the rotary blade. When 5 is rotated, the wire rod 10 is sandwiched between the fixed blade 2 and the rotary blade 5 and cut, and the further rotation of the rotary blade 5 causes the end portion of the wire rod 10 to be completely wound around the terminal pin 8.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of a wire entanglement device according to the present invention will be described with reference to FIGS. A fixed blade 2 is provided at the end (lower end in the figure) of a hollow fixed shaft 1. The fixed blade 2 is made of a metal material, but can be made of another hard material. The fixed blade 2 shown in this embodiment is formed in a disk shape having a radius r, and a part thereof is cut to form a vertical surface 3. The fixed blade 2 can be formed integrally with the fixed shaft 1 if necessary.

A rotary shaft 4 is rotatably inserted into the fixed shaft 1 so as not to slip out, and a rotary blade 5 is provided at an end portion (lower end in the figure) of the rotary shaft 4. In this example, the rotary blade 5
Is formed integrally with the rotary shaft 4, but it may be formed separately and attached so as to be rotationally integrated with each other. The rotary blade 5 has a substantially cylindrical shape and has a radius R and a height H.
Is formed on the surface, and the groove 7 is continuously provided from one end of the notch 6. The groove 7 is formed along a circular locus about the central axis of rotation of the rotary blade 5, that is, the central axis of the rotary shaft 4. That is, the groove 7 is a rotary blade.
5 from the side surface (surface of the cutout portion 6) in the radial direction.
It has been done.

A terminal hole 9 for inserting a terminal pin 8 to be described later is formed on the lower surface of the rotary blade 5, and the upper surface of the rotary blade 5 is lightly contacted with the lower surface of the fixed blade 2 described above or has a very small gap. Hold and be opposed. Fixed blade 2 in the illustrated example
The radius r is larger than the radius R of the rotary blade 5 (r> R), but is not limited to this. Only
The distance of the groove 7 from the axis of the rotary shaft 4 must be smaller than r.
Be done. A rotary drive source (not shown) such as a motor is directly or indirectly connected to the upper end of the rotary shaft 4.
The rotary blade 5 is also made of a metal material, but can be made of another hard material.

The operation of this device will be described with reference to FIGS. In the figure, 10 is a wire rod, 11 is a bobbin, and 8 is a terminal pin erected on this. When the winding of the wire rod 10 on the bobbin 11 is completed, the terminal pin 8 of the bobbin 11 is inserted into the groove hole 9 of the entwining device to insert the wire rod 10 into the groove 7 of the rotary blade 5 (FIG. 4). In this state, when the rotary shaft 4 is rotated (counterclockwise direction in FIG. 1B), the wire 10 is rotated by the rotary blade 5.
It wraps around the terminal pin 8. During this winding operation, the wire 10 receives an appropriate holding force in the groove 7 and
Glide inside. When the rotary blade 5 rotates by a certain angle, the wire rod 10
Is sandwiched between the vertical surface 3 of the fixed blade 2 and the rotary blade 5 (FIG. 5), and the wire rod 10 is cut by further rotation of the rotary blade 5 (FIG. 6).

When the rotary blade 5 is further rotated, the wire 10 is wound around the terminal pin 8 (FIGS. 7 and 8), and finally, as shown in FIG. To be In this way, the cutting of the wire rod 10 and the winding around the terminal pin 8 are performed almost at the same time. Further, since the wire rod 10 is securely wound around the terminal pin 8 by the rotary blade 5 to the tip end portion of the terminal, so-called whiskers do not occur. In this case, the length of winding around the terminal pin 8 is determined by the height H of the rotary blade 5, and the wire rod 10 can be uniformly wound around the plurality of terminal pins 8.

[0011]

According to the wire entanglement device of the present invention, the cutting of the wire and the winding around the terminal pin are performed substantially at the same time. Further, since the wire rod is securely wound around the terminal pin up to the tip portion of the terminal, so-called whiskers do not occur, and therefore there is an effect that the processing after the wire rod terminal is entangled can be omitted unlike the conventional case. In addition, the plurality of terminal pins 8 of the wire rod 10
It is possible to uniformly form the entangled state, and to expect a high quality entanglement operation. Also insert the terminal pin 8 into the terminal hole 9.
After that, simply insert the wire rod 10 into the groove 7 and rotate the rotary blade.
Wires can be entangled with simple operations.

[Brief description of drawings]

FIG. 1 is a side view showing an example of a wire entanglement device according to the present invention, and B is a bottom view thereof.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a sectional view taken along line BB in FIG.

FIG. 4 is a side view used for explanation just before the start of a binding operation by this device.

FIG. 5 is a bottom view showing a state where the wire rod in operation of this device is sandwiched between the fixed blade and the rotary blade.

FIG. 6 is a side view showing a state in which the wire rod during operation of the device is cut.

FIG. 7 is a side view showing a state after cutting the wire rod.

FIG. 8 is a side view showing another state after cutting the wire rod.

FIG. 9 is a side view showing a state after the wire entwining operation is completed.

FIG. 10A to FIG. 10C are side views for explaining a binding operation by a conventional device.

Claims (1)

[Claims] 1. A hollow fixed shaft in which a rotary shaft is rotatably housed, and an end portion of the fixed shaft that is provided substantially perpendicular to the fixed shaft and has a central portion.
The end of the rotating shaft was passed through, and a part was cut with a straight line
A disc-shaped fixed blade, in the end portion of the rotary shaft is provided adjacent to the fixed blade, regarding the extending direction of the rotary shaft is selected to be a predetermined length protrudes radially side face, Wire along the circumference
A guide groove is formed between both end faces , and the wire guide groove
The distance from the axis of the above rotary shaft is
A wire rod entanglement device comprising: a rotary blade having a small columnar shape and having a terminal hole into which a terminal pin is inserted in a central portion of an end surface opposite to the fixed blade .