JPS6135108B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a winding machine that uses a three-dimensionally movable nozzle to wind the winding wire and the end of the winding to the terminal pin. The present invention relates to a winding end cutting method in which cutting is performed using movement of a winding supply nozzle.

BACKGROUND ART A winding machine that uses a nozzle that winds a bobbin by fixing a bobbin to a spindle, rotating the spindle at high speed, and supplying wire while moving a nozzle is widely used.

A method has also been implemented in which the nozzle is moved three-dimensionally according to a predetermined program, thereby automatically retracting the terminal pin provided on the bobbin.

When using such a winding machine, after winding the wire to the terminal pin at the beginning and end of winding,
It is necessary to cut unnecessary wires.

In order to cut the wire, it is conceivable to use a cutter to cut the wire stretched between the terminal pin and the other wire holding means. For this purpose, it is necessary to add a cutter and a function to control it to the winding machine.

An object of the present invention is to cut the ends of a winding wire by using the movement of a nozzle for feeding the wire without using a special cutter or the like to cut the wire. and a cutting method.

In order to achieve the above object, the present invention provides a method for winding and cutting a wire in a winding machine that winds and terminal pins using a three-dimensionally movable nozzle. a winding step of rotating the wire around the terminal pin and winding the wire onto the terminal pin, and after the winding step is completed, the nozzle is moved in a direction intersecting the line stretched between the wire holding device and the pin. The method consists of a cutting process in which the wire is moved and the wire is cut between the wire holding device and the terminal pin.

The method according to the present invention will be explained in more detail below with reference to the drawings and the like. FIG. 1 is a perspective view showing an embodiment of a coil manufactured by the method according to the invention. Bobbin 1 having square frames 1a, 1b
The winding is performed on the wire.

A winding start terminal pin 3a is installed on the frame 1a, and a winding end terminal pin 3b is installed on the frame 1b. A winding start wire 2a is wound on the terminal pin 3a, and a winding end wire 2b is wound on the terminal pin 3b. The method of the present invention can be applied not only to coils having the above-described structure, but also to coils having a structure in which a large number of terminal pins are installed in one direction.
This will be explained using the coil shown in the figure as an example.

FIG. 2 is an explanatory diagram schematically illustrating an example of a process for winding wire using the method of the present invention.

Before starting work, the bobbin 1 is fixed to the winding spindle 4 (FIG. 2A). The other end of the wire 2 passing through the nozzle 5, which is capable of three-dimensional movement, is wound around a wire supply source (not shown). The wire holding device 6 is driven to open and close by a signal from a control device (not shown), and can hold or release the wire 2.

This holding device 6 holds the wire 2 before starting the work of tightening it to the winding start terminal pin 3a. The portion of the line 2 from this holding position to the winding start terminal pin 3a will be referred to as 2. FIG. 3A shows an enlarged view of the state in which the nozzle 5 has rotated once around the winding start terminal pin 3a. Note that a groove 5a is provided in the nozzle 5 to prevent the line from shifting during cutting. After rotating the nozzle 5 several times in the direction indicated by the arrow shown in Fig. 3A (movement on the circumference indicated by A in Fig. 2B), winding is started as shown in Fig. 3B. After lowering the nozzle 5 near the terminal pin 3a, move the nozzle 5 in the direction shown by the arrow until the line 2
Cut it by tearing it apart. The line is pin 3
It is cut at the corner of a. With a cutter, it is not possible to cut the wire close to the pin like this. Same figure C
shows the state where the line is cut at the 2p position and the nozzle is moved for the next process.

When winding and cutting to the winding start terminal 3a is completed in this way, the nozzle 5 is brought to the winding position as shown in FIG. A traverse movement is performed in response to the rotation and a line is supplied. Furthermore, the third
After the cutting is completed as shown in Figure C, the holding device 6 no longer holds the line 2.
Since there is no need to hold , line 2 is released and kept open in preparation for the next hold.

When the winding is completed, the winding end terminal pin 3b is then wound at the position shown by B in FIG. 2C.
FIG. 4A shows a state in which the winding end terminal pin 3b has been twisted about two times after the winding has started. When the nozzle is rotated a predetermined number of times in the direction of the arrow in FIG. 4A to complete the elongation, the nozzle 5 is moved in the direction of the holding device 6 and held by the holding device 6 as shown in FIG. 2C. and connect the wire between the pin 3b and the retaining device 6.
Stretch 2m. After the wire is held by the holding device 6, the nozzle 5 is returned toward the winding end terminal 3b in FIG. 2C.

The returned nozzle 5 is brought to a position where it can intersect the line 2m near the winding end terminal pin 3b, as shown in FIG. 4B. FIG. 4B shows this state.

In this state, the nozzle 5 is moved in the direction indicated by the arrow in Fig. 4B to cut the wire at the position 2q as shown in Fig. 4C, and the winding end terminal pin 3b is lifted and cut. finish. The wire is cut very short at the corner of the winding end terminal pin 3b. The line 2n between the holding device 6 and the nozzle 5 then corresponds to two parts in the next winding. Note that in Figure 2D, the length of line 2n is longer than the length of 2 required in Figure 2A, resulting in slack, but the diagram shown in Figure 2 is for explanation purposes only. This is a schematic diagram, and the positions of the bobbin 1 and the holding device 6 do not represent the actual positional relationship. In an actual winding machine, the holding device is configured to be movable and the wire in the nozzle 5 can be pulled back to the supply side, so no problem occurs.

As explained above, according to the present invention, cutting and cutting can be performed only by operating the nozzle, without the need for a special cutter or the like for the sole purpose of cutting the wire. Also, since the wire is reliably cut at the corner of the terminal pin, it can be cut shorter than using a cutter separately. Even if the pin is not a square pin, it can be cut in the same way close to the pin.

Although the embodiments have been described in detail above, various modifications can be made within the scope of the present invention. Regarding the state of the nozzle, it is also possible to provide a groove and a protrusion suitable for cutting a line instead of the groove 5a. Also, the direction in which the nozzle moves during cutting can be either the direction in which the wire to be cut is pressed against the terminal pin (Fig. 4B) or the direction in which it is pulled away from the terminal pin (Fig. 3B). Preferably, these can be appropriately selected by driving the nozzle.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an example of a coil whose winding is wound and cut by the method of the present invention, Fig. 2 is an explanatory diagram showing an example of the process of the method of the present invention, and Fig. 3 is a terminal at the beginning of winding. FIG. 4 is a perspective view illustrating an example of twisting and cutting an end-of-winding terminal. 1... Bobbin, 1a, 1b... Frame, 2... Line,
2a... winding start wire, 2b... winding end winding wire, 3a
... Winding start terminal pin, 3b... Winding end terminal pin, 4...
Spindle, 5... Nozzle, 6... Wire holding device.

Claims (1)

[Claims] 1. In a winding machine that uses a three-dimensionally movable nozzle to wind the wire and wind the terminal pin, the nozzle is rotated around the terminal pin to wind the wire on the terminal pin. and after the completion of the stirring step, moving the nozzle in a direction intersecting the line stretched between the line holding device and the pin,
A winding end winding and cutting method comprising a wire holding device and a cutting step of cutting the wire between terminal pins. 2. The winding end winding according to claim 1, wherein the wire stretched between the wire holding device and the terminal pin is a wire stretched between the winding start terminal pin and the wire holding device before the winding process. Hair and cutting methods. 3. The winding end winding and cutting method according to claim 1, wherein the wire stretched between the wire holding device and the terminal pin is a wire stretched after the winding end terminal pin winding process is completed. .