JPS63311714A - Winding machine - Google Patents

Abstract

PURPOSE:To make it possible to tightly wind a wire around the body to be wound such as a core and the like when a winding work is conducted automatically by a method wherein, after the body to be wound has been once inclined in the direction reverse to the direction in which the wire is wound, the body to be wound is inverted to the winding direction of the wire. CONSTITUTION:The suction means 26b, into which the tip of the wire A is sucked, is moved backward by a servo motor 18b in such a manner that it is moving away from a core 22, and at this time, the wire A is softly pinched by closing a squeeze member 30, the prescribed tension is given to the wire A, and the tendency of the wire A that it is easily bent is removed. A holder 20 rotates 180 deg. when the suction means 26 moves backward, but the holder is held for an appropriate period at the position which is inclined at a suitable angle (45 deg. for example) in the direction opposite to the direction in which the wire is wound while tension is added to the wire A. As an obtuse angle is given to the wire A at the position corresponding to the corner part of the core, it does not become loose by contacting to the corner part, and it is tightly wound on the core 22.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a winding machine that automatically winds wire around an annular magnetic core or the like.

(Background of the Invention) A magnetic head is used to read information from or to a magnetic recording medium such as a magnetic tape or a magnetic disk. This magnetic head is made by winding a wire several times around a substantially annular core, and a winding machine that automatically winds this wire has already been proposed (for example, in Japanese Patent Laid-Open No. 60-234
(See No. 09).

This winding machine sucks the tip of the wire fed out from the wire insertion means on one side through the wire hole of the core (the body to be wound) to the wire suction means on the other side, and applies a predetermined tension to the wire while suctioning the wire. Retracting the means away from the core, at this time reversing the winding direction of the wire around the core, and after completing the retraction, advancing the wire insertion means in the direction of the wire to hold the wire and disconnect the wire from the suction means. .

Thereafter, the insertion means is reversed, the insertion means is moved close to the core again, and the cut end of the wire is let out from the insertion means, passed through the wire hole of the core, and passed to the wire suction means on the other side. Make it absorb. The wire is wound around the core by repeating the above steps.

However, with this conventional machine, when the suction means is retreated from the core while applying a certain tension to the wire, the wire hits the corner of the part where the wire is wrapped around the core, causing the wire to lift up from the core, causing the wire to stick tightly to the core. There was a problem in that it was not possible to wrap the wire around it. That is, as shown in FIG. 3, a suction means 2 that applies a certain tension to the wire 1
Since the core 3 is held perpendicular to the receding direction of the wire 1, the wire 1 hits the corner 3a of the core 3, causing the wire to loosen at the portion 1a on the opposite side to the pulling direction of the wire 1. It was something to put away.

(Objective of the Invention) The present invention was made in view of the above circumstances, and provides a winding machine that can wind wire around a body such as a core without slack when winding work is automatically performed. The purpose is to provide.

(Structure of the Invention) According to the present invention, the object is to provide a holder that holds the body to be wound, and a holder that is disposed facing each other with the body to be wound between and movable parallel to a straight line passing through the wire hole of the body to be wound. A pair of wire suction means, a pair of wire insertion means disposed between each suction means and the holder, movable parallel to the straight line, and movable forward and backward along the straight line, The unwound wire is attracted to the suction means on the other side through the wire hole of the body to be wound, and while applying a predetermined tension to the wire, the suction means is retreated in a direction away from the holder, while the body to be wound is reversed. Later, the insertion means on the same side as the suction means is advanced in the straight line to hold the wire and cut the wire from the suction means, and after reversing the insertion means, the cut end of the wire is inserted into the wire to be wound. In a winding machine that inserts the wire into the wire hole of the body and repeats the above process, when the suction means retreats in the direction away from the holder while sucking the wire through the wire hole, the wire is wound around the body. The winding of the wire is accomplished by a winding machine that is characterized by reversing the direction once it has been tilted in a direction opposite to the direction in which it was applied.

(Embodiment) Fig. 1 is an overall configuration diagram of an embodiment of the present invention, and Fig. 2A to 2J
The figure is an explanatory diagram of the operation.

In FIG. 1, reference numeral 10 denotes a base, and two wooden rails 12 (12a, 12b) are fixed in parallel on this base 10. This rail 12 has a pair of left and right carts 14.
(14a, 14b), and each carriage 14 can be moved independently by a servo motor 18 (18a, 18b) via a feed mechanism 16 (16a, 16b). A holder 20 is disposed near the center in the length direction of the rail 12 and outside both rails 12, and an annular core 22 as a wound body is fixed to the holder 20. That is, this core 22 is screwed in advance to a chip 24 as shown in FIG.
is held in between. This holder 20 can rotate the core 22 within a range of at least 180 degrees, and can temporarily hold the core 22 at an angle inclined in the opposite direction to the direction in which the wire is wound.

The trolley 14 is provided with wire suction means 26 (26a, 26b).
) and wire insertion means 32 (32a, 32b), which will be described later, are attached. The suction means 26 is connected to the wire hole 2 of the core 22.
2a (see Fig. 2D, etc.) and located on a straight line parallel to the rail 12.
), and negative suction pressure generated by an air pump (not shown) is guided to these suction ports 28, and the end of the wire A is drawn into the suction ports 28. In addition, immediately in front of this suction port 28, a squeezing member 30 is provided which is opened and closed by relative movement of the suction port 28.

The insertion means 32 is located closer to the holder 20 than the suction means 26, and can move forward and backward on the straight line passing through the wire hole 22a. This insertion means 32 is shown in FIGS. 2C and 2F.
As shown in Figures 2-2J, a pair of separable feed rollers 34 (34a, 34b) for holding the wire A and a cutter 36 are provided.

In FIG. 1, numeral 38 denotes a wire supply means, which supplies the wire A of an appropriate length at the beginning of winding the wire. This feeding means 38 feeds out the wire A wound on a wire reel 40 by sandwiching it between a pair of rollers 42 and 42 as shown in FIGS. 2A to 20, and cuts the wire A with a cutter 44. Further, in FIG. 1, reference numeral 46 denotes an air jet tube, which has the function of preventing the wire A from becoming entangled.

Further, in FIG. 1, 50 (50a, 50b) is a rotary encoder that detects the rotation angle of the servo motor 18, 52 is an input interface, 54 is a CPU, 56 is a RAM, 5
8 is an output interface, 60 (60a, 60b)
is the driver. This winding machine operates as follows. First, the supply means 38 advances to one side of the wire hole 22a of the core 22 (FIG. 2A), and as a result, the suction means 2 on the other side
The suction port 28b of the wire hole 22a moves forward to the other side of the wire hole 22a while pushing the squeezing member 30 open. Next roller 42.42
rotates as shown in FIG. 2B and inserts the wire A into the wire hole 22.
When the wire A is fed to the wire A, the tip of the wire A is sucked into the suction port 2, 8b facing the wire hole 22. When a predetermined length of wire A is supplied, a wire presser bar 62 provided on the holder 20 descends to clamp and fix the wire A between it and the clamp 20b. Then, the cutter 44 of the supply means 38 descends to cut the wire A, and the supply means 38 is retracted from the core 22 (FIG. 2C).

On the other hand, the suction means 28b that has sucked the tip of the wire A is moved back away from the core 22 by the servo motor 18b, and at this time the squeezing member 30 closes and lightly pinches the wire A, applying a predetermined tension to the wire A and Removes bends and curls. The distance that the suction means 26b moves backward, that is, the amount of movement, is determined by the CPU 54 based on the output of the rotary encoder 50b.

When the suction means 26 moves backward, the holder 20 rotates 180 degrees, and while the wire A is under tension, the holder 2o rotates at an appropriate angle (for example, 45 degrees) in the opposite direction to the direction in which the wire is wound. It is held in a tilted position for an appropriate period of time (mZn diagram). For this purpose, wire A is wound as shown in FIG.

The holder 20 is temporarily held at a predetermined angle as shown in FIG.
), and the wire presser lever 64 provided on the holder 2o rotates and contacts the core 22 to prevent the wire A from loosening (Fig. 2E).

Then, the insertion means 32b is the roller 34a.

The cutter 3 moves forward in front of the suction port 28b with the cutter 34b open, and after sandwiching the wire A between the rollers 34a and 34b.
6. Turn off iA. As a result, the wire A is separated from the suction means 26b (FIG. 2F).

Next, the insertion means 32b rotates by 18o0 and advances toward the core 22 with the cut end of the wire A facing the core 22 side. At this time, the suction port 28a of the suction means 26A on the other side pushes open the squeezing member 30 and faces the other side of the wire hole 22a (FIG. 2G). At this time, the loose wire A is blown away in one direction by the air ejected from the air ejection pipe 46, thereby preventing the wire A from getting tangled.

When the insertion means 32b faces the wire hole 22a, the roller 34a of this insertion means 32b.

34b rotates to feed the cut end of the wire A into the wire hole 22a, and this cut end is sucked into the suction port 28a (FIG. 2H), and as the insertion means 32b retreats, the suction means 26a inserts the wire A into the wire hole 22a. I move backwards away from it.

At this time, the wire A is attached to the squeezing member 30a of the suction means 26a.
applies a predetermined tension to wire A, while holder 2
0 is approximately 45° in the opposite direction to the direction in which the core 22 is wound.
It is temporarily held at an inclined angle to prevent the wire A from loosening on the core 22 side. Then, until the suction means 26a reaches the maximum retraction position, the CPU 54 rotates the core 22 to an angle perpendicular to the direction in which the wire 22 is pulled, and further rotates the core 22 by 180 degrees to wind the wire. The CPU 54 is the suction means 2
6a reaches the maximum retracted position, or just before that, the driver 60a starts advancing the insertion means 32a. Then, the insertion means 32a separates the wire A and moves forward toward the core 22 while rotating 180 degrees (second construction drawing).

After that, the insertion means 32a repeats the above-described process for the core 22 (FIG. 2J).

(Effects of the Invention) As described above, the present invention provides the following advantages: While retracting the suction means and applying a predetermined tension to the wire, the body to be wound is appropriately tilted in the opposite direction to the direction in which the wire is wound. Since the angle formed by the wire hitting the corner of the body to be wound is an obtuse angle, the wire is tightly wound around the body to be wound, preventing the wire from becoming loose when being wound. be able to.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of an embodiment of the present invention, FIG. 2 is an explanatory diagram of the operation, and FIG. 3 is an explanatory diagram of the conventional winding process. DESCRIPTION OF SYMBOLS 20... Holder, 22... Core as a wound body, 22a... Wire hole, 26... Suction means, 32... Insertion means, A... Wire.

Claims (1)

[Claims] A holder for holding a body to be wound, a pair of wire suction means disposed opposite to each other with the body to be wound in between and movable in parallel to a straight line passing through a wire hole in the body to be wound, and a pair of wire suction means and the holder. a pair of wire insertion means disposed between them and movable in parallel with the straight line and movable forward and backward along the straight line; While applying suction to the suction means and applying a predetermined tension to the wire, the suction means is retreated in a direction away from the holder, while the body to be wound is reversed, and then the insertion means on the same side as the suction means is The wire is wound by moving the wire forward in a straight line, holding the wire, separating the wire from the suction means, reversing the insertion means, inserting the cut end of the wire into the wire hole of the body to be wound, and repeating the above steps. In the machine, when the suction means moves back away from the holder while sucking the wire through the wire hole, the wire to be wound is once tilted in the opposite direction to the direction in which the wire is wound, and then the wire is wound. A winding machine characterized by reversing the winding direction.