JP2728939B2 - Fiber manufacturing method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a fiber production method for producing fine fibers from a metal material or the like.

(Prior Art) Conventionally, a wire cutting method has been known as this kind of fiber production method. In this wire cutting method, the wire is pulled out from one reel around which a wire having a diameter of about 3 mm is wound, wound around a pair of rolls with a guide groove several tens of times, and wound around the other reel. By taking this, a large number of wires are moved in the same direction between the rolls, and a fiber is manufactured by cutting the surface of each wire by pressing a blade against the wire between the rolls.

(Problems to be Solved by the Invention) However, in the above-described wire cutting method, since the surface is cut while pulling the wire in one direction, it is difficult to apply a low-strength material such as brass or copper in the manufacturing method. In addition, there is a problem that the length and thickness of the fiber become non-uniform because the cutting depth tends to vary due to vibration or the like during manufacturing. Further, since only a part of the surface of the wire is used as a material for producing fibers, there is a problem that waste is large and the material cost is high.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is possible to produce a desired fiber from various materials regardless of the strength of the material, and to reduce the material cost by effectively utilizing the material. It is intended to provide a manufacturing method.

(Means for Solving the Problems) In order to achieve the above object, the present invention is to feed a laminate formed by laminating a large number of thin material plates little by little in a direction orthogonal to a width direction thereof. The cutting blade is reciprocated in the width direction of the laminate and in parallel with the end face for each feeding,
The cutting blade is used to cut the end face of the laminate.

(Operation) According to the present invention, the end face of the laminated body fed little by little is cut on the feeding face by a cutting blade reciprocating in parallel with the end face, whereby a desired fiber is continuously manufactured. You.

The length of the fiber produced here is approximately equal to the width of the laminate, and its thickness is approximately proportional to the feed amount of the laminate.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of a manufacturing apparatus suitable for carrying out the present invention.

In the figure, reference numeral 1 denotes a base placed on a floor or the like, and has an accommodation groove 1a for accommodating fibers dropped by cutting at the center of the upper surface of the base 1.

Reference numeral 10 denotes a laminated body formed by laminating a number of thin material plates.Specifically, a rectangular brass plate having a thickness of 100 μm and a width of about 1 m is provided with a lubricant such as silicone oil between the plates. It is formed by laminating a large number of layers with intervening.

Reference numeral 20 denotes a stacked body holding mechanism disposed on the upper surface of the base 1, and the holding mechanism 20 is erected on the upper surface of the base 1 at an interval substantially equal to the width of the stacked body 10. Support plate 21
And a spring 22 having the same area as the upper surface of the laminate 10 and extending between the support plates 21 and inside the two support plates 21.
And the holding plate 23 urged downward by the

In the holding mechanism 20, the laminated body 10 is inserted between the lower surface of the holding plate 23 and the upper surface of the base 1.
Between the lower surface of the holding plate 23 and the upper surface of the base 1,
Both sides can be supported by the support plate 31a to maintain the stacked state. Note that the force of the spring 22 is not so strong, and the laminate 10 can slide back and forth even in the holding state.

Reference numeral 30 denotes a laminate pressing mechanism that feeds the laminate 10 by a small amount toward the cutting blade 30, and the pressing mechanism 30 includes the laminate 10
A pressing tool 31 for pressing the entire rear end face, a nut 32 connected to a lower portion of the pressing tool 31, a ball screw 33 screwed to the nut 32, and a motor 34 for rotating the ball screw.
Further, two guide rods 35 are provided on the pressing tool 31 so as to protrude rearward.
Is slidably inserted into a bearing of a support base 36 fixed to the upper surface of the base.

In this pressing mechanism 30, it is possible to move the pressing member 31 back and forth with the rotation of the motor 34, and the pressing member 31
By pressing the rear end face of the 10, the laminated body 10 can be moved in a direction orthogonal to the width direction and fed toward the cutting blade 30.

Numeral 40 denotes a cutting blade made of high-speed steel, cemented carbide, or the like. The cutting blade 40 is fixed to a tool rest 41 having a bearing.
The tool rest 41 is slidably fitted to a guide rod 42 arranged in the width direction of the laminated body 10 and parallel to the end face. The guide rod 42 is provided on a support 43 fixed to the upper surface of the base 1 at a larger interval than the end of the laminated body 10 in front of the end of the laminated body 10. The cutting blade 40 cuts the end face of the laminated body 10 during reciprocation (when moving to the left in the figure). It has a rake angle of around 30 ° and a front clearance angle of around 10 °.

Reference numeral 50 denotes a cutting blade drive mechanism for reciprocating the cutting blade 40 along the guide rod 42.The drive mechanism 50 includes a rack 51a longer than the width of the laminated body 10 at a central portion on one side, and both ends. A drive rod 51 which is inserted in a bearing of the support base 43 in parallel with the guide rod 42 and slidably;
A motor 52 having a pinion 52a meshing with the rack 51a
Consists of The drive rod 51 has a center portion opposite to the rack 51a fixed to the back side of the tool rest 41.

In the drive mechanism 50, the tool post 41 fixed to the drive rod 51, that is, the cutting blade 40 is reciprocated in the width direction of the laminated body 10 and in parallel with the end face by rotating the motor 52 in the forward and reverse directions. Can be.

Reference numeral 60 denotes a conveyor rotatably disposed in the accommodation groove 1a of the base 1, and the conveyor 60 is rotated along the accommodation groove 1a by a motor (not shown) to remove the fibers dropped into the accommodation groove 1a. The base 1 is transferred to one side.

 Next, the operation of the manufacturing apparatus will be described.

In the production of fibers by this manufacturing apparatus, the laminate 10 is fed by a small amount in a direction perpendicular to the width direction of the laminate, and the cutting blade 40 is fed in the width direction of the laminate 10 every feeding and in parallel with the end face. The cutting is performed by cutting the end face of the laminate 10 with the cutting blade 40.

Specifically, the motor 52 of the driving mechanism 50 is temporarily stopped at a stage where the tip of the cutting blade 40 is displaced from the right end of the end face of the laminated body 10 in the drawing, and thereafter, the motor 34 of the pressing mechanism 30 is rotated by a predetermined angle and pressed. The tool 31 is moved forward by a small amount, for example, about 100 μm, and the laminate 10 is fed toward the cutting blade 30 by the same amount. Thereafter, the motor 52 of the drive mechanism 50 is again rotated in the forward and reverse directions by a predetermined angle to reciprocate the cutting blade 40. Thereby, the end face of the laminate 10 is cut by the cutting blade 40. Holding mechanism 20
The feeding of the laminate 10 is performed in accordance with the reciprocating motion of the cutting blade 40 until it becomes impossible to hold the fiber, whereby a desired fiber is continuously manufactured.

The length of the fiber produced by this device is
The width is almost equal to the width of 10 and its thickness is almost proportional to the intermittent feeding amount of the laminate 10, and in the above embodiment, the length is about 1 m.
Thus, a relatively long brass fiber having a thickness of about 100 μm is continuously produced.

The production fiber falls into the accommodation groove 1a and is transported by the conveyor 60 in one direction of the base 1.

From the viewpoint of material manufacturing technology, the thickness of a relatively easily obtainable plate is limited to about 100 μm. If a thinner plate is to be obtained, the material cost becomes extremely high due to manufacturing difficulties. In the case where finer fibers are produced by the apparatus, the laminate may be produced by a rolling apparatus as shown in FIG.

In FIG. 2, reference numerals 71a and 71b denote rolling rollers arranged in parallel at a predetermined interval S, and the rolling rollers 71a and 71b
Are driven to rotate by a drive motor (not shown). K is a plate material, and KS is a laminate of the plate material K.

In manufacturing the laminate, first, the plate thickness is about 100 μm
Are laminated to form a laminate KS, and the laminate KS is inserted between the rolling rollers. At this time, if the interval S between the rolling rollers 71a and 71b is set to 100 μm,
The KS is rolled to the same size as the above, whereby four brass sheets having a thickness of about 25 μm per sheet can be obtained at the same time. Therefore, by stacking several rolled laminates to form a laminate, it is possible to produce extremely fine fibers of about 25 μm with the above-described production apparatus.

Further, according to the above manufacturing apparatus, copper, aluminum, nickel, titanium, other than brass, regardless of the strength of the plate material.
Non-metallic materials such as plastics can be cut in addition to various metal materials such as iron, stainless steel and alloys thereof.

Further, as shown in FIG. 3, two different types of plate materials are used.
If the laminated body 80 is constructed by laminating 81 and 82, or the laminated body is constructed by laminating two or more types of plate members, mixed fibers can be obtained simultaneously with cutting.

Furthermore, when the base material such as a friction material for a brake, a conductive material, an electromagnetic wave shielding material, and a sound absorbing and sound insulating material is manufactured using the manufactured metal fiber, a plastic material having a high affinity with the carrier material of these various base materials is required. If a laminated body is formed by laminating a material plate such as a metal plate with a metal plate, the metal fiber and the carrier material can be bonded with a high affinity when the substrate is manufactured. Later, the metal fibers do not fall off from the carrier and the characteristics of the base material itself do not deteriorate.

Furthermore, even when a mixed fiber is manufactured by forming a laminate using a metal plate and plastic, the manufactured mixed fiber is heated to soften or melt the plastic, thereby bonding the fibers together using the plastic as a binder. In addition to this, a molding pellet containing metal fibers can be manufactured by cutting this into a predetermined length.

Furthermore, when forming a laminate by laminating metal plates,
If a separating material such as high-quality paper, woven fabric, non-woven fabric, wood sheet, etc. is interposed between the metal plates, the metal plates can be cut in a non-adhered state.
The fibers can be manufactured in a completely separated state without being bonded by plastic deformation.

(Effects of the Invention) As described in detail above, according to the present invention, the fibers are cut by cutting the end face of the laminated body fed in small amounts by a cutting blade that reciprocates in parallel with the end face for each feed. Because it is manufactured, desired fibers can be continuously manufactured from various materials regardless of the strength of the materials, and almost all of the laminate is effectively used as a material for producing fibers, thereby reducing material costs. be able to. In addition, since a fiber having a length substantially equal to the width of the laminate and having a thickness substantially proportional to the intermittent feeding amount of the laminate can be produced, fibers having a uniform length and thickness can be produced. It has the advantage of mass production.

[Brief description of the drawings]

1 to 3 show an embodiment of the present invention.
FIG. 1 is a perspective view of a manufacturing apparatus suitable for carrying out the present invention, FIG. 2 is a simplified view of a rolling apparatus, and FIG. 3 is a partial cross-sectional view of a laminate. 10, 80: laminate, 20: laminate holding mechanism, 30: laminate pressing mechanism, 40: cutting blade, 50: cutting blade drive mechanism.

Claims (1)

(57) [Claims] 1. A laminate formed by laminating a large number of thin material plates is fed by a small amount in a direction orthogonal to the width direction thereof, and a cutting blade is moved in the width direction of the laminate every feed. And a reciprocating movement parallel to the end face, and cutting the end face of the laminate with the cutting blade.