JPH03185618A - Magnetic head and production thereof - Google Patents

Abstract

PURPOSE:To prevent the stepping and peeling between a magnetic head core and a slider by enclosing the magnetic head core with a plastic material, thereby constituting the slider. CONSTITUTION:The magnetic head consists of the magnetic head core 1 which makes recording and reproducing to and from a magnetic recording medium and the slider 2 constituted by enclosing the magnetic head core 1 with the plastic material. Namely, the magnetic head core 1 is inserted into the mold material of the slider 2 and a plastic resin is poured into this mold material, by which the magnetic head is produced. The stepping and peeling between the magnetic head core 1 and the slider 2 are eliminated in this way and the inexpensive magnetic head is produced at a good yield.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a magnetic head and a method of manufacturing the same, and more particularly to a magnetic head incorporated in a magnetic disk drive and a method of manufacturing the same.

Prior Art Conventionally, as shown in FIG. 3 and FIG.
There is a method of manufacturing the sliders 3a and 3b by bonding them with an adhesive or the like.

These sliders T3a, 3b were manufactured by cutting a ceramic material.

In such a conventional magnetic head manufacturing method, a ceramic material is used for the sliders 3a and 3b, and this ceramic material has a drawback in that it is difficult to process because it is very hard.

In addition, since the sliders 3a and 3b are bonded to both sides 4a and 4b of the magnetic head core 4 with an adhesive, there is a risk of misalignment between the magnetic head core 4 and the sliders 3a and 3b, and curing due to the composition of the adhesive. Due to non-uniformity or variations in various conditions such as deterioration of adhesive strength due to curing time or temperature, there is a drawback that steps or peeling are likely to occur between the magnetic head core 4 and the sliders 3a, 3b.

Invention 1] The present invention has been made to eliminate the drawbacks of the conventional products as described above, and eliminates the step and peeling between the magnetic head core and the slider, and manufactures an inexpensive magnetic head with a high yield. The purpose of the present invention is to provide a magnetic head that can perform the following steps, and a method for manufacturing the same.

Structure of the Invention The magnetic head according to the present invention is characterized by comprising a magnetic head core that performs recording and reproduction on a magnetic recording medium with χ,1, and a slider configured by wrapping the magnetic head core in a plastic material.

A method for manufacturing a magnetic head according to the present invention includes the steps of: preparing a magnetic head core for recording and reproducing information on a magnetic recording medium and a mold for a slider that holds the magnetic head core; inserting the magnetic head core into the mold; The method is characterized by including a step of pouring plastic resin into the mold material.

Embodiment Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of an embodiment of the present invention. In the figure, in one embodiment of the present invention, the slider 2 is made of plastic material.
For example, using polyphenylene sulfide (PPS), the magnetic head core 1 is inserted into a mold (a) of the slider 2 (not shown) and integrally molded by injection molding.

FIG. 2 is a side view of one embodiment of the present invention. In the figure, at the center of the slider 2, the 0 part 1a of the magnetic head core 1 is
, lb and a contact surface 1c of a magnetic recording medium (not shown) are surrounded by a plastic material constituting the slider 2.

Also, both ends of the magnetic head core 1 are connected to the contact surface 1c.
・Since the magnetic head core 1 is inclined
But Sa never falls from slider 2.

After the magnetic head core 1 is inserted and integrally molded by injection molding, the bottom surface of the slider 2 is cut to expose the five joints 1c of the magnetic head core 1. Even in this case, the magnetic head core 1 does not fall out from the slider 2 due to the inclined surfaces at both ends of the magnetic head core I.

Since the slider 2 is injection molded using a plastic material, there is no need to use adhesives, etc., eliminating steps and peeling caused by variations in adhesive composition and curing time, and making it easier to assemble the magnetic head core 1 and slider 2. It is possible to eliminate assembly errors during work.

In this way, by wrapping and holding the magnetic head core 1 with the plastic material used for the slider 2, there is no need to use adhesive, so it is easier to manage the composition of the adhesive, curing time, and during assembly. It is possible to eliminate problems such as steps and peeling between the magnetic head core 1 and the slider 2 due to assembly errors, etc., and to reduce assembly man-hours, making it possible to manufacture magnetic heads at high yields and at low cost. can.

Also, insert the magnetic head core 1 into the profile of the slider 2,
By manufacturing the magnetic head by pouring plastic resin into the mold material, it is possible to eliminate the step and peeling between the magnetic head core 1 and the slider 2, and to manufacture a magnetic head at a high yield and at low cost. .

In one embodiment of the present invention, the magnetic head core 1 and the slider 2 are integrally molded by an injection molding method, but the magnetic head core 1 and the slider 2 may be integrally molded by a pressurizing method or the like; Not done.

DETAILED DESCRIPTION OF THE INVENTION As described in detail, according to the present invention, by wrapping the magnetic head core in a plastic material to form the slider, it is possible to eliminate steps and peeling between the magnetic head core and the slider. There is.

Further, according to the method of manufacturing a magnetic head according to the present invention, the magnetic head core is pressed into a mold material of a slider, and the magnetic head is manufactured by pouring plastic resin into the mold material, so that the magnetic head core and the slider are manufactured by This has the effect of eliminating gaps and peeling, making it possible to manufacture magnetic heads at high yields and at low cost.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a side view of an embodiment of the invention, and FIGS. 3 and 4 are perspective views of a conventional example. Explanation of symbols of main parts 1...Magnetic head core 1a, ib...Shoulder portion 1C...Abutment surface 2...Slider

Claims (2)

[Claims] (1) A magnetic head comprising a magnetic head core that performs recording and reproduction on a magnetic recording medium, and a slider formed by wrapping the magnetic head core in a plastic material. (2) A step of preparing a mold for a magnetic head core that performs recording and reproduction on a magnetic recording medium and a slider for holding the magnetic head core, inserting the magnetic head core into the mold, and pouring plastic resin into the mold. A method of manufacturing a magnetic head, comprising: