JPS61100915A - Automatic small-hole winder - Google Patents

Abstract

PURPOSE:To enable efficient automatic winding and easy lined-up winding by a simple construction wherein a magnetic pin member is attracted and passed through the small hole of a body whereon winding is made, and then wound thereon by the cooperative actions of a movable electromagnetic matched with the small hole of said body, and of a magnetic pin member chucking arm. CONSTITUTION:The fore end of a magnetic pin member 4 is made to be attracted onto an attracting portion at the end of a movable electromagnet 7, and a wire material holding roller 10 is further lowered to pass a wire material 3 through a small hole 1a. While kept in the ON state, the movable electromagnet 7 is rotated to a position as high as an extension of the wire material 3, so as to wind the wire material 3 by one turn round on a body 1 on which winding is made. Meanwhile, a chucking arm 5, which is elevated to an upper position in proximity to the movable electromagnet 7 positioned above said body and is rotated, chucks the magnetic pin member 4, and the movable electromagnet 7 is turned OFF and returned to a position in close proximity to and below the small hole 1a. The chucking arm 5 rotates to the initial position in proximity to the small hole, while putting the wire material 3 round on the wire material holding roller 10, so as to bring the magnetic pin member 4 to a position in the vicinity of and aligned with the small hole, or into the small hole.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a small-hole automatic winding machine for winding a wire having a small diameter through a ring core, a magnetic head core, etc. having small holes or small grooves through the small holes.

- A core with a rectangular window with a side length of 9.5 mm or 0.611 mm, a core with a hole with an extremely small inner diameter, and a thin wire passed through these holes and the hollow portion of the core of the thin and small magnetic head. When automatically winding wire, in conventional equipment, a suction nozzle is installed on one side of the small diameter hole in the core, the end of the wire to be wound is brought close to the opposite side, and the end of the wire is vacuum-suctioned into the hole in the core. The method is to pass it through the core, return it from the outside of the core, and pass it through the hole again by vacuum suction. Such a vacuum winding machine requires a device that requires nine people to generate vacuum, and the wire rod may be twisted due to vacuum suction.
Furthermore, when the number of windings is large, it becomes difficult to wind the wire midway through the wire, and the wire dances due to turbulence in the air flow, making it difficult to insert the wire into the small hole.

The present invention eliminates the difficulty of winding an i-motion wire around a ring core or the like having micro holes as described above, and enables efficient automatic winding with a simple configuration. The purpose is to provide line machines.

The small hole winding machine according to the present invention attaches the end of a magnetic pin member capable of magnetic attraction to the end of the wire rod, and arranges a movable electromagnet at a position aligned with the small hole of a body to be wound such as a core or bobbin. ,
The magnetic pin member is attracted by the cooperative action of the movable electromagnet and the magnetic pin member gripping arm, and is wound once through the small hole of the wound body.

Embodiments of the present invention will be described below with reference to one drawing.

FIG. 1 is a diagram schematically showing the principle of a conventional winding machine using a vacuum suction method. A vacuum suction nozzle 2 is cut in the lower side of the small hole 1a of the ring core 1, and the tip 3at- of the wire 3 brought to a position near the upper side of the small hole 1a, the nozzle 2
The core 1 is pulled by the air suction force and pushed through the small hole 1aVc of the core 1, and such operation 1 is repeated to perform multiple windings. In this method, as described above, the fine wires are twisted or undulated due to turbulence in the air flow, and a good winding condition cannot be obtained.

FIG. 2 is a perspective view of the magnetic pin member 4 and the movable electromagnet 7 according to the embodiment of the present invention, and FIG. 3 is a perspective view of the magnetic pin member gripping arm 5 according to the embodiment of the present invention. Moreover, FIGS. 4(a) to 4(g) are schematic side views showing an automatic winding machine according to an embodiment of the present invention according to the winding operation order. The magnetic pin member 4 is formed of an iron nail, a steel bottle, etc., and is applied with solder, instant adhesive, etc. to the tip of the wire 3 to be wound with a wire diameter of 30 to 50 μm, for example, so that the axes of the two are aligned as much as possible. It is fixed by As will be described later, the magnetic pin member gripping arm 5 is equipped with a suitable drive mechanism (not shown) so as to be able to reciprocate up and down from a raised position far above the wound body to a position f above the small hole adjacent to the small hole. (omitted).

The movable magnet 7 is made of a straight rod-shaped ferromagnetic material, and a coil 8 is attached thereto, and a slightly large-diameter adsorption portion 7a is attached to the tip of the rod-shaped magnetic material.
is formed. The movable electromagnet 7 is disposed under the small hole 1a of the wire-wound body 1 so as to be able to move up and down, and attracts the tip of the magnetic pin member 4 through the small hole at a position very close to the bottom of the small hole. The winding member 1 is held by a drive mechanism (not shown) so as to be rotated reciprocally from this lowered position to a position above the wire-wound body 1 through the outside of the wire-wound body 1 . As will be described later, both the magnetic pin member gripping arm 5 and the movable electromagnet 7 operate in conjunction with each other.

Next, the above-mentioned magnetic pin member and its gripping arm,
The overall schematic structure and operation of a small hole automatic winding machine using a movable electromagnet will be explained with reference to FIGS. 4(a) to (2). In FIG. 4(a), a movable wire holding roller 10 and a magnetic pin member gripping arm 5 are arranged above a wound body l having a small hole 1a, and a movable wire holding roller 10 and a magnetic pin member gripping arm 5 are arranged below a wound body 1 and a small hole 1a. A movable electromagnet 7 is placed at a position corresponding to the position. In FIG. 3(a), first, the wire 3 with the tip trapping magnetic bottle member 40 is brought from the wire supply section 11 through the movable wire holding roller 10 to a position near the upper side of the small hole 1a of the wire-wound body 1, and is held by the gripping arm 5. The magnetic pin member 4 is gripped and moved into the vicinity of the small hole 1a or into the small hole by the downward trap of the gripping arm 5. Then, the movable electromagnet 7 is raised from below the wound body 1 so that the magnetic pin member 4 and the movable electromagnet 7 are in contact with each other or closely face each other. Next, as shown in FIG. 4(b), the movable magnet 7t is turned on, the gripping arm 5t is opened to release the magnetic pin member 4, and the wire holding roller 10 is moved downward to bend the wire 3. , the tip of the magnetic pin member 4 is attracted to the tip adsorption portion 7a of the movable electromagnet 7. It is preferable to open the gripping arm 5 (release the pin member) at least after the tip of the magnetic pin member 4 has been pushed through the small hole 1aK, or after it has been inserted and is not attracted by the movable electromagnet 7. . In this state, when the wire holding roller 10 is further lowered to loosen the tension on the wire 3 and the movable electromagnet 7 is lowered as shown in FIG. After the wire 3 is stretched by a specified length below the small hole 1a as shown in FIG. The wire rod 1 is rotated from the outside of the wire rod 1 to the upper side of the wire rod 1 to a position at least at the height of the elongated rib of the wire rod 3. The wire rod 3 is now wound with one turn of the wire rod 1'/c.

At this time, as shown in FIG. 4 (13), the wire holding roller 10 is on the side opposite to the wire supply section 11 (ie, on the small hole side) with respect to the elongated wire 3'/C connected to the movable electromagnet 7'/c. Here the fourth
The gripping arm 5 shown in FIGS. (a) to (c) is raised and rotated to a raised position close to the movable electromagnet 7'/c above the body to be wound, and the magnetic pin attracted by the movable electromagnet 71C As soon as the member 4 is gripped, the movable electromagnet 7 is turned off, rotates downward 1- and returns to a position very close to the bottom of the small hole 1a, and is turned on again for the next suction. prepared for the situation.

This state is the state shown in FIG. 4(f). After this, the gripping arm 5 rotates to the first position adjacent to the small hole while winding the wire 3 connected to the magnetic pin member 4 around the wire holding roller IOK, and moves the magnetic pin member 4 to a position near the small hole aligned with the small hole or bring it within. After this, see Figure 4 (a) to (g) again.
This operation is repeated the required number of times, that is, the number of times the wire is wound and collected. Note that the wire holding roller 10 described above may be omitted depending on the form of the winding.

While repeating the interlocking operations of energizing, deenergizing, and vertically moving one magnet 7 and opening/closing and rotating the gripping arm 5, a thin wire is passed through the small hole 1a of the wire-wound body 1 to the outer periphery multiple times. For example, wind the wire around 20 tanns.

In the present invention, unlike the conventional vacuum suction method, an air flow is generated around the small hole in the core to be sucked into the nozzle, and instead of passing the wire through the small hole in the core by this air flow, the m-type bottle member is attached to the magnet. Since the fs material is attracted to and pulled, there is no air flow or air turbulence around the fs material, and even small holes can be inserted reliably by simply aligning the position of the pin and electromagnet with the small hole position. This eliminates the possibility of wires getting tangled. In addition, the tension of the wire is linear, making it easy to wind in alignment. Since there is no airflow,
There is no generation of dust or flakes, and work can be carried out even in environments where this type of dust is disliked.

[Brief explanation of the drawing]

Figure 1 is a schematic diagram of a conventional vacuum suction type automatic winding machine, Figure 2
The figure is a perspective view of a movable electromagnet and a magnetic pin member applied to the present invention, FIG. 3 is a perspective view of a magnetic bottle member gripping arm applied to the present invention, and FIGS. 4(a) to (g) are a perspective view of the present invention. A small hole automatic winding machine according to an embodiment of the present invention. FIG. 3 is a schematic side view showing the winding operation order. 1...Wound body, la...Small hole, 3...
・Wire rod, 4...Magnetic pin member, 5...
・Magnetic pin member gripping arm, 7...Movable electromagnet, 8...Coil, lO・
...Movable wire holding roller. 11...Wire supply section.

Claims (1)

[Claims] A magnetic pin member is fixed to the end of the wire so that its axis coincides with the wire, and the magnetic pin member is arranged vertically movably under the small hole of the wound body and passes through the outside of the wound body. The movable electromagnet includes a movable electromagnet that can reciprocate to a position above the small hole, and a magnetic pin member gripping arm that rotates up and down with respect to the small hole above the wound body. attracting the tip of the magnetic pin member through the small hole, rotating it from a lowered position to a position above the wound body in the attracted state, and releasing it;
The small hole automatic winding machine is characterized in that the gripping arm grips the magnetic pin member at a position above the winding body, descends to the small hole position, and releases it.