JPH04137600U - Manufacturing equipment for magnetic wire for pulse generation - Google Patents

Abstract

(57) [Summary] [Purpose] The present invention provides an apparatus for manufacturing a magnetic wire for pulse generation, which is used to manufacture a magnetic wire with excellent coercive properties and workability as a material for pulse generation. [Structure] A motor 10 that provides rotational drive, and a motor that is linked to the rotation of this motor 10 via a rotating shaft 7, and continuously sends out a magnetic wire 16 that has been wound around a magnetic wire feeding drum 5 in advance at a constant speed. a feeding mechanism section 6; a twist holding section that guides the fed magnetic wire 16 and holds it at a predetermined interval while twisting the magnetic wire 16;
A heat treatment furnace 15 that is provided within a predetermined interval and heat-treats the magnetic wire 16 is provided to constitute an apparatus for manufacturing a pulse generating magnetic wire.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is a pulse generation method for producing magnetic wire as a material for pulse generation. The present invention relates to a magnetic wire manufacturing device.

0002

[Conventional technology]

In general, pulse-generating materials have different retention forces between layers in the wire radial direction, and It is generated by applying an external magnetic field to a magnetic wire that has uniaxial anisotropy. It is constructed by obtaining a pulse voltage. Also, recently it has been used as a material for pulse generation. Manufacturing equipment for manufacturing magnetic wires has also been developed.

0003 An example of such a magnetic wire manufacturing device is, for example, Japanese Patent Publication No. 55-15797. and Japanese Patent Publication No. 59-12142. Specifically, in the former case In this case, after the wire is subjected to a heat treatment process that repeatedly heats and cools, the wire is The wire is drawn by applying tension in the longitudinal direction to cause permanent elongation, and then the circumferential strain is applied around the wire axis. By applying bending or twisting stress, the coercive force of the outer layer can be increased and the coercive force of the inner layer can be increased. We have obtained a magnetic wire that can reduce the coercive force of the magnetic wire.

0004 On the other hand, in the latter case, permanent twist remains in the wire or distortion occurs inside the wire. After applying stress and twisting after untwisting, heat treatment is performed at a relatively low temperature. By doing so, the coercive force in the outer layer is made smaller, and the coercive force increases toward the inner layer. We have obtained a magnetic wire that can be heard. These magnetic wire manufacturing devices are all the same. The gist is that the magnetic wire can have different coercive forces in its radial direction.

[0005]

[Problem that the idea aims to solve]

In the case of the above-mentioned magnetic wire manufacturing equipment, in the former, elongation processing is performed as a predetermined wire. Heat treatments such as annealing and cooling are repeated while applying tension to the surface of the finished product. Because work hardening is applied and residual strain changes in the inner and outer layers due to tension. However, it is difficult to control the temperature required for heating and cooling during the work hardening process, resulting in uniform and stable temperature control. There is a problem in that it is difficult to manufacture magnetic wires with different magnetic properties.

[0006] In the latter case, after applying tension and twisting alternately, heat treatment is performed at low temperature. By doing this, we manufacture magnetic wires that can suppress changes in shape and magnetic properties over time. However, the twisting processing and heat treatment used here are difficult to apply to continuous wire rods. Therefore, there is a problem with productivity.

[0007] Generally, a twisting device for twisting a wire rod is used as shown in FIG. 3, for example. A weight 18 is attached to one end of the magnetic wire 16 through the control part 19, and the magnetic wire is Tension the magnetic wire 16 by attaching the other end of the ear 16 to the twist motor 17. Magnetic wire 16 in the part that applies force and is placed between the regulating part 19 and the twisting motor 17 On the other hand, the twisting process is performed by driving the twisting motor 17. like this The twisted wire rod is twisted by the twisting device, and the diameter and hardness of the magnetic wire 16 vary. If there is, the twisting process is likely to change, for example, the shape or pitch of the twisted part may become uneven. Ru. When such a magnetic wire is used as a pulse generating material, the pulse voltage can be stabilized. As a result, the uniformity of the product will be impaired.

[0008] The present invention was made to solve this problem, and its purpose is to Magnetic wire that can be easily processed with high uniformity on materials and has excellent magnetic properties. An object of the present invention is to provide a manufacturing apparatus for a magnetic wire for pulse generation, which can manufacture a magnetic wire for pulse generation.

[0009]

[Means to solve the problem]

According to the present invention, there is a rotary drive unit that provides rotational drive, and a drive receiving unit that receives the drive of this rotary drive unit. A feeder that rotates the magnetic wire and continuously sends out the housed magnetic wire at a constant speed. The feeding mechanism part guides the fed magnetic wire and also guides the magnetic wire. A torsion retainer that holds at a predetermined interval while applying twist, and a twist retainer that is set within the predetermined interval. A magnetic wire for pulse generation equipped with a heat treatment section that heat-treats the magnetic wire. A manufacturing device is obtained.

0010

【Example】

Examples are given below to explain the manufacturing apparatus of the magnetic wire for pulse generation according to the present invention. Explain in detail. Figure 1 shows the production of a magnetic wire for pulse generation, which is an embodiment of the present invention. A side view of the device is shown, and FIG. 2 shows its top view.

[0011] As shown in the figure, the manufacturing device includes a motor 10 as a rotational drive unit that provides rotational drive. , the main body itself rotates by receiving the drive of this motor 10 via the rotating shaft 7. At the same time, the magnetic wire 16 is wound around the magnetic wire feeding drum 5 housed in advance. A feeding mechanism section 6 that continuously feeds out the magnetic wire 1 at a constant speed, and a magnetic wire 1 that is fed out. 6 and twisting the magnetic wire 16 while holding it at a predetermined interval. a holding part; a heat treatment part provided within a predetermined interval thereof and heat treating the magnetic wire 16; It is configured to include a heat treatment furnace 15 as a heat treatment furnace.

0012 Of these, the feeding mechanism section 6 is provided on the outer body concentrically with respect to the rotation axis direction. A fixed spur gear 1 is formed with a through hole through which a magnetic wire 16 is sent out, and It is equipped with a rotating spur gear 2 that rotates by meshing with the spur gear 1, while the inner body has a A rotation transmission shaft 11 on which a rotating spur gear 2 is mounted and a worm gear 3 is provided; The rotation of the rotation transmission shaft 11 engages the worm gear 3 and rotates in conjunction with the worm gear 3. A rotating feed drum drive gear 4 and a gear attached to the feed drum drive gear 4. A spindle provided with a magnetic wire feed drum 5 and a feed from the magnetic wire feed drum 5. A rotating guide roller 8 with a V-groove is provided for guiding the magnetic wire 16 taken out. It is equipped with a supporting shaft.

[0013] Further, the twist holding section is attached to the tip surface of the fixed spur gear 1 of the sending mechanism section 6. The magnetic wire 16 is attached to the tip of the feeding portion near the feeding port. This V-groove rotational twisting guide roller 9 and this V-groove rotational twisting guide roller 9 At predetermined intervals, the wires are placed in a straight line in the direction in which the magnetic wire 16 is sent out. It also includes a twisting rubber roller 12 and a twisting holding rubber roller 13 provided next. Ru. Furthermore, the direction in which the magnetic wire 16 is sent out is lower than that of the twist holding rubber roller 13. A winding roller 14 is provided at the position where the winding roller 14 is taken up.

[0014] The pulse generating magnetic wire manufacturing apparatus having such a configuration has the following configuration: When the rotation is transmitted from the rotating shaft 7 to the sending mechanism section 6, it rotates around the fixed spur gear 1. The spur gear 2 rotates, and the worm gear 3 of the rotation transmission shaft 11 rotates to drive the feed drum. Since it meshes with the drive gear 4, the magnetic wire feed drum 5 rotates. This results in The magnetic wire 16 rotates with a V-groove via the V-groove rotating guide roller 8 and the sending part. It is sent out to the twisting guide roller 9. At this time, the magnetic wire 16 rotates with a V groove. The center of the through hole provided in the fixed spur gear 1 and the feeding section is controlled by the guide roller 8. axially aligned. Subsequently, the magnetic wire 16 is attached to the V-groove rotation twisting guide. Twisting is applied between the drawer roller 9 and the twisting rubber roller 12, and this twisting is It is regulated between the rubber roller 12 and the twist holding rubber roller 13. Meanwhile, during this time , between the V-grooved rotating twisting guide roller 9 and the twisting rubber roller 12, Heat treatment is performed in the heat treatment furnace 15, and the magnetic wire 16 is pulled with a constant tension. The magnetic wire for pulse generation is wound up on the winding roller 14 as a result of this heat treatment. ear is formed.

By the way, the magnetic wire 16 used in the present invention is made of an F _e -C _o -V alloy. This magnetic wire 16 is obtained by the production process described below. First, an alloy consisting of _Co = 50 _wt% , V = 10 _wt% , and the remaining amount F _e is vacuum-deposited and processed into a wire rod with a diameter of 5 _mm by hot working. Next, this wire is annealed in hydrogen at 850° C. for 30 minutes, water quenched, and then drawn to a diameter of 0.25 mm to form the magnetic wire 16.

[0016] Table 1 shows the magnetic wire 16 formed in this way and the magnetic wire of the present invention. Depending on the manufacturing equipment, for example, the wire length is 1 m, the set twisting pitch width is 3 mm, and the heat treatment temperature is 300. The machining characteristics of pulse-generating magnetic wires that were twisted and heat-treated under ℃ conditions were compared to those of conventional wires. This figure shows a comparison with the one made using the same manufacturing equipment (explained in FIG. 3). However, in the case of conventional wire manufacturing equipment, both ends of the magnetic wire 16 are fixed. Since it is difficult to perform uniform heat treatment, a direct current equivalent to a temperature of 300°C is applied. In addition to approximating the twisting heat treatment conditions for both, the magnetic wire 16 was It is colored with oil-based ink and the twist pitch width is measured after twisting heat treatment.

[0017]

[Table 1]

In the case of the present invention, the average value x (mm) of the twist pitch width is 3.01, its variance σ _n-1 is 0.06, and the maximum width difference of the measured value ΔL (ΔLmax −ΔLmin, unit is mm) is 0. 30, whereas in the comparative example, x=3.01, σ _n-1 =1.36, and ΔLmax −ΔLmin =3.11, respectively. In particular, as is clear from the comparison of σ _n-1 and ΔLmax −ΔLmin, according to the magnetic wire manufacturing apparatus of the present invention, the twisting pitch width can be accurately and uniformly twisted. In order to accurately equalize the average value x of the twisting pitch width, the distance between the V-grooved rotational twisting guide roller 9 and the twisting rubber roller 12 should be made as short as possible to minimize the transmission of twisting. is desirable.

Furthermore, Table 2 shows the coercive properties of the pulse generating magnetic wire formed by the magnetic wire manufacturing apparatus of the present invention as a pulse generating material in comparison with that of the magnetic wire formed by the conventional wire manufacturing apparatus. It is something that In the case of the present invention, the average value y (V) of the output pulse voltage is 4.6, its dispersion σ _n-1 is 0.25, and the maximum width difference of the measured voltage value ΔE (ΔE max - ΔE min, unit is V) is 1.1, whereas in the comparative example, y=3.5, σ _n-1 =1.13, and ΔEmax −ΔEmin =4.2, respectively. In this case as well, as is clear from the comparison of σ _n-1 and ΔEmax −ΔEmin, the output pulse voltage is more stable and uniform in the magnetic wire produced by the magnetic wire manufacturing apparatus of the present invention.

[0020]

[Table 2]

[0021]

[Effect of the idea]

As described above, according to the present invention, the twist pitch width and output pulse voltage are accurately equalized. Processing performance that allows for easy heat treatment of continuous wire rods. Thus, an apparatus for manufacturing a magnetic wire for pulse generation with high pulse generation can be obtained. As a result, with this invention The formed magnetic wire for pulse generation has great coercive properties as a material for pulse generation. Also, especially during heat treatment, it is possible to maintain a certain level in the axial direction of the magnetic wire. Since tension is applied, machining performance is improved and the magnetic wire for pulse generation can be processed more efficiently. Mass production becomes possible.

[Submission date] June 1, 1992

[Procedural amendment 1]

[Name of document to be amended] Specification

[Correction target item name] 0015

[Correction method] Change

[Correction details]

By the way, the magnetic wire 16 used in the present invention is made of Fe _- Co _- V alloy. This magnetic wire 16 is obtained by the production process described below. First, an alloy consisting of _Co = 50 _wt%' V = 10 _wt%' and residual amount _Fe is vacuum melted and processed into a wire rod with a diameter of 5 mm by hot working. Next, this wire is annealed in hydrogen at 850° C. for 30 minutes, water quenched, and then drawn to a diameter of 0.25 mm to form the magnetic wire 16.

[Brief explanation of drawings]

FIG. 1 shows a side view of a manufacturing apparatus for a magnetic wire for pulse generation, which is an embodiment of the present invention.

FIG. 2 shows the plane.

FIG. 3 shows an example of a conventional magnetic wire manufacturing apparatus.

[Explanation of symbols]

1 Fixed spur gear 2 Rotating spur gear 3 Worm gear 4 Drum drive gear 5 Magnetic wire feed drum 6 Feeding mechanism section 7 Rotation axis 8 Rotating guide roller with V groove 9 V-groove rotary twisting guide roller 10 motor 11 Rotation transmission shaft 12 Rubber roller for twisting 13 Holding rubber roller 14 Winding drum 15 Heat treatment furnace 16 Magnetic wire 17 Torsion motor 18 Weight 19 Regulatory Department

──────────────────────────────────────────────── ─── Continuation of front page (72) Creator Kunio Takahashi 6-7-1 Koriyama, Taihaku-ku, Sendai, Miyagi Prefecture Within Tokin Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. A rotational drive unit that provides rotational drive; a delivery mechanism unit that rotates under the drive of the rotational drive unit and continuously sends out the housed magnetic wire at a constant speed; A twist holding section that guides the magnetic wire and holds the magnetic wire at a predetermined interval while twisting the magnetic wire, and a heat treatment section that is provided within the predetermined interval and heat-treats the magnetic wire. A manufacturing device for magnetic wire for pulse generation. 2. The pulse generating magnetic wire manufacturing apparatus according to claim 1, wherein the feeding mechanism section is provided on the outer body concentrically with respect to the rotation axis direction, and has a through hole for feeding out the magnetic wire. A fixed gear in which a hole is formed, and a rotary gear that rotates by meshing with the fixed gear, and an inner body includes a rotation transmission shaft on which the rotation gear is mounted, and a rotation transmission shaft that rotates the rotation transmission shaft. rotates in conjunction with
A manufacturing apparatus for a pulse-generating magnetic wire, comprising a spindle provided with a magnetic wire guide and feed section that guides and sends out the magnetic wire.