JPH0249695Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a winding machine that automatically winds wire around an annular magnetic core or the like.

(Background of the invention) Magnetic heads are used to read information from and to magnetic recording media such as magnetic tapes and magnetic disks. This magnetic head is made by winding a wire several times around a substantially annular core, and a winding machine that automatically winds the wire has already been proposed (for example, see Japanese Patent Application Laid-Open No. 60-23409). .

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 retreats the wire suction means away from the core. After the retraction is completed, the wire insertion means is moved forward in the direction of the wire to hold the wire and to separate the wire from the suction means. Thereafter, the core and the insertion means are each 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 and passed through the wire hole of the core to the wire suction means on the other side. Aspirate the distal end. The wire is wound around the core by repeating the above steps.

However, in this conventional machine, the suction means retreats from the core while sucking the wire, and after detecting that the suction means has retreated to a predetermined maximum retreat position, the insertion means starts moving forward toward the wire. It was configured. That is, from the time when the suction means reaches the maximum retracted position until the insertion means holds the wire, in other words, while the insertion means advances toward the wire, the other parts must stop and wait.
As a result, there was a problem that the working speed was slow and the production capacity was reduced.

(Purpose of the invention) The present invention has been made in view of the above circumstances, and an object thereof is to provide a winding machine that can speed up the winding work and improve production capacity.

(Structure of the invention) According to the invention, the purpose is to provide a holder that holds the object to be wound, and a holder that is disposed facing each other with the object to be wound in between and is movable parallel to a straight line passing through the wire hole of the object to be wound. A pair of wire suction means and a pair of wire insertion means disposed between each suction means and the holder and movable parallel to the straight line and movable forward and backward along the straight line, the wire being fed out from the insertion means on one side. The wire to be wound is sucked through the wire hole of the body to be wound to the suction means on the other side, and the suction means is retreated in a direction away from the holder, while the insertion means on the same side as the suction means is advanced along the straight line. The wire is held at the same time as the wire is separated from the suction means, the insertion means and the body to be wound are each reversed, the cut end of the wire is inserted into the wire hole of the body to be wound, and the above steps are repeated. In the line machine, a movement amount detection means for detecting the movement amount of the suction means, a subtraction means for subtracting a predetermined amount from an output of the movement amount detection means at the maximum retraction position of the suction means, and a subtraction means for subtracting a predetermined amount from the output of the movement amount detection means at the maximum retraction position of the suction means; This is achieved by a winding machine characterized in that it includes a comparison means for starting the insertion means to advance in a straight line when the insertion means has moved in accordance with the result of this subtraction.

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

In FIG. 1, reference numeral 10 is a base, and two rails 12, 12 are fixed in parallel on this base 10. A pair of left and right carts 14, 14a, and 14b are placed on this rail 12, and each cart 14
are independently movable by servo motors 18, 18a, 18b via feed screw mechanisms 16, 16a, 16b, respectively. 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.
It is held between b. This holder 20 has core 2
2 can be rotated within a range of at least 180°.

The trolley 14 is provided with wire suction means 26, 26.
a, 26b, and wire insertion means 32, 32 described later
a and 32b are attached. The suction means 26 includes suction ports 28, 28a, and 28b that pass through the wire hole 22a of the core 22 (see FIG. 2D, etc.) and are located on a straight line parallel to the rail 12, and these suction ports 28 are equipped with an air pump ( (not shown) is introduced, and the end of the wire A is connected to this suction port 2.
It is designed to be sucked into the 8. 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 is capable of moving forward and backward along the straight line passing through the wire hole 22a. This insertion means 3
2 is a pair of separable feed rollers 3 for holding the wire A, as shown in FIGS. 2C, E to I.
4, 34a, 34b, and a cutter 36.

In FIG. 1, reference numeral 38 denotes a wire supply means, which supplies a suitable length of wire A 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 2C, and cuts the wire A with a cutter 44. Also the first
In the figure, 46 is an air ejection tube, which has the function of preventing the wire A from becoming entangled.

Further, in FIG. 1, 50, 50a, 50b are rotary encoders that detect the rotation angle of the servo motor 18, 52 is an input interface, 54 is a CPU,
56 is RAM, 58 is output interface, 6
0, 60a, and 60b are drivers.

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, when the rollers 42, 42 rotate as shown in FIG. 2B and send out the wire A to the wire hole 22a, the tip of the wire A is sucked into the suction port 28b 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
(Figure C).

On the other hand, suction means 26 that sucked the tip of wire A
b is retracted 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 to remove any bends or curls in the wire A. 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 driving the motor 18b at a constant speed, the amount of movement is
Timer 5 is a function of the CPU 54 itself.
It is detected by integrating the time T in step 4a.
When the suction means 26b reaches the maximum retreat position and stops, the CPU 54 stores the time T at that time in the RAM 56.

Next, the holder 20 rotates 180 degrees, and the wire presser lever 64 provided on the holder 20 rotates and contacts the core 22 to prevent the wire A from loosening (D in the same figure).

Then, the insertion means 32b inserts the rollers 34a, 3
4b opened, move forward in front of the suction port 28b,
After the wire A is held between the rollers 34a and 34b, the wire A is cut by the cutter 36. As a result, the wire A is separated from the suction means 26b (E in the figure).

Next, the insertion means 32b rotates 180 degrees 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. F). At this time, the wire A becomes loose due to the air ejected from the air ejection pipe 46.
is blown in one direction to prevent it from tangling.

When the insertion means 32b faces the wire hole 22a, the rollers 34a, 34b of this insertion means 32b
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 (G in the same figure). Then, as the insertion means 32b retreats, the suction means 26a moves backward away from the core 22.
The timer 54a integrates the moving time T' of the timer 54a. On the other hand, the CPU 54 uses its own function, the subtraction means 54b, to subtract a predetermined amount α from the time T required for the suction means 26b to move to the maximum retreat position in the previous stroke (T-α). Find in advance.
Here, α is set to the time required for the insertion means 32a to complete the forward movement to the position where the wire A is clamped. Then, the CPU 54 calculates the time T' (T-
α), and when the two become equal, the driver 60a starts advancing the insertion means 32a. Therefore, when the suction means 26a reaches the maximum retracted position, the insertion means 32a can also hold the wire A at the same time. Then, the insertion means 32a separates the wire A and rotates by 180 degrees, and the core 22 also rotates by 180 degrees (H in the figure).

Thereafter, the insertion means 32a moves forward toward the core 22 and repeats the above-described process (FIG. 1).

According to this embodiment, since the insertion means 32 is advanced before the suction means 26 reaches the maximum retracted position of each stroke, there is no waiting time until the insertion means 32 completes its advance, and the operating speed is increased.

In this embodiment, the amount of movement of the suction means 26 is expressed as time.
Although the detection is performed at T′, the present invention is not limited to this.
Of course, other means such as the rotational speed of the motor 18 may be used for detection.

(Effect of the invention) As described above, the present invention advances the insertion means before the suction means reaches the maximum retraction position of each stroke, so the waiting time until the insertion means completes its advance can be zeroed or significantly shortened. . Therefore, it is possible to increase the speed of winding work, and the effect of improving production capacity can be obtained.

[Brief explanation of the drawing]

Figure 1 is an overall configuration diagram of one embodiment of the present invention, Figure 2
The figure is an explanatory diagram of the operation. 20...Holder, 22...Core as a wound body, 22a...Wire hole, 26...Suction means, 2
8... Insertion means, 54a... Timer as movement amount detection means, 54b... Subtraction means, 54c... Comparison means, A... Wire, α... Predetermined amount.

Claims (1)

[Claims for Utility Model Registration] (1) A holder that holds a body to be wound, and a pair of wires that are arranged facing each other with the body to be wound in between and are movable in parallel to a straight line passing through a wire hole in the body to be wound. The wire insertion means is provided with a suction means and a pair of wire insertion means disposed between each suction means and the holder and movable parallel to the straight line and movable forward and backward along the straight line, and the wire fed out from the insertion means on one side. The wire is drawn through the wire hole of the wire to be wound to the suction means on the other side, and the suction means is retreated in a direction away from the holder, while the insertion means on the same side as the suction means is advanced along the straight line to draw the wire. In a winding machine, the wire is held and separated from the suction means, the insertion means and the body to be wound are each reversed, and the cut end of the wire is inserted into the wire hole of the body to be wound, and the above steps are repeated. , a movement amount detection means for detecting the movement amount of the suction means; a subtraction means for subtracting a predetermined amount from the output of the movement amount detection means at the maximum retraction position of the suction means; A winding machine characterized by comprising: comparison means for starting the insertion means to advance in a straight line when the insertion means has moved by a certain amount as a result. (2) The winding machine according to claim 1, wherein the movement amount detection means is formed by a timer that measures the movement time of the suction means. (3) The winding machine according to claim 1, wherein the movement amount detection means is formed by a counter that adds up the number of pulses proportional to the movement distance of the suction means. (4) The predetermined amount is set so that the insertion means completes its linear forward movement when the suction means is retracted to the maximum retracted position. The winding machine according to item 2 or 3.