KR100428874B1 - Device for producing metalfiber - Google Patents

Abstract

The present invention relates to a method and apparatus for manufacturing a metal microfiber, comprising: a chamber (10); A rotating drum (12) rotatably installed in the chamber (10); A melting furnace (11) installed above the rotating drum (12) and having one or more jet holes (15) for supplying molten metal to the rotating drum (12); Opening and closing means for opening and closing the blower outlet 15; A product collecting means 13 for temporarily storing the finished product; Comprising one or more material supply device for supplying the material to the melting furnace 11, The material supply device, the inlet chamber 30 is installed on the outer wall of the chamber (10); A roll holder 33 for fixing the roll on which the material 31 is wound; A feeder installed between the inlet chamber 30 and the roll holder 33 to supply the material 31 wound on the roll to the inlet chamber 30, and to control the speed of supplying the material 31. and a feeder 40.

Description

Metal microfiber manufacturing equipment {DEVICE FOR PRODUCING METALFIBER}

The present invention relates to an apparatus for manufacturing a metal microfiber, and more particularly, to a method for producing a metal microfiber having a very fine thickness by solidifying the molten metal scattered by contacting the molten metal to the surface of the rotating drum rotating at high speed; Relates to a device.

In general, such metal microfibers are manufactured using a rapid solidification method of molten metal. That is, in order to prevent oxidation of the product and to ensure quality, a melting furnace is installed in a vacuum chamber in which a vacuum control means is installed, and the material is melted using the melting furnace to form a molten metal. In this case, when a high level of quality is not required according to the conditions under which the metal microfiber is used, the melting furnace may be installed in the air.

Next, when the rotating drum or disk having the cooling means is brought into contact with the surface of the molten metal at high speed, a portion of the molten metal is scattered into the air by the frictional force between the surface of the drum and the molten metal to instantly solidify while forming a metal microfiber. . The metal microfibers thus produced are collected in a product collection unit installed in front of the furnace.

At this time, as the work proceeds, the height of the molten metal is gradually lowered. If this is continued, the surface of the molten metal does not come into contact with the rotating drum, and thus the production of the product is impossible. .

Therefore, conventionally, for this purpose, the surface of the melt and the rotating drum are always kept in contact while lifting the melting furnace upward or lowering the rotating drum in accordance with the change of the height of the melt.

However, according to the prior art as described above, if the height of the molten metal in the melting furnace is below a certain level, no further production is possible, and thus a process of stopping the operation of the equipment and injecting the raw materials to reload the raw materials into the melting furnace is required. In this case, a considerable time is required to completely dissolve the material, and also, since the vacuum pump must be operated again to maintain the vacuum, there is a problem that the productivity of the product decreases and the production cost also increases because the continuous operation is impossible.

Applicant has proposed in the patent application No. 10-2001-0037181, a manufacturing method and a manufacturing apparatus of a metal microfiber solved these problems. The present invention was improved by the conventional apparatus to continuously input the material directly into the melting furnace to maintain the height of the molten metal.

The present invention was useful to minimize the downtime of the equipment to enable continuous operation, significantly increase the productivity of the product and also reduce the production cost.

The present invention has been made to overcome the disadvantages of the prior art as described above, and to further improve the invention already proposed, it is not necessary to stop the operation of the equipment to supply the material to the furnace, and also to It is a technical problem to provide a method and apparatus for producing metal microfibers more easily and continuously without the need to precisely control the feeding speed.

1 is a schematic view showing an embodiment of a manufacturing apparatus of a metal microfiber according to the present invention.

FIG. 2 is a perspective view of the bottom surface of the chamber in the embodiment shown in FIG.

3 is a cross-sectional view of the inlet chamber of the embodiment shown in FIG.

4 is a second embodiment of the inlet chamber shown in FIG.

FIG. 5 is a third embodiment of the inlet chamber shown in FIG.

[Explanation of symbols for the main parts of the drawings]

10... Chamber, 11... Melting furnace,

12... Rotating drum, 13... Product Collector,

20... Tuck, 21... door,

30. Inlet chamber, 31... Material,

40…. Feeder, 50... septum,

51, 52... Compartment 54, 55... Side Panel,

56. Passages 57, 58... Sealing Material,

71. Outlet, 72... Sealing material storage tank

The present invention to achieve the above technical problem, the chamber 10; A rotating drum (12) rotatably installed in the chamber (10); A melting furnace (11) installed above the rotating drum (12) and having one or more jet holes (15) for supplying molten metal to the rotating drum (12); Opening and closing means for opening and closing the blower outlet 15; A product collecting means 13 for temporarily storing the finished product; Comprising one or more material supply device for supplying the material to the melting furnace 11, The material supply device, the inlet chamber 30 is installed on the outer wall of the chamber (10); A roll holder 33 for fixing the roll on which the material 31 is wound; A feeder installed between the inlet chamber 30 and the roll holder 33 to supply the material 31 wound on the roll to the inlet chamber 30, and to control the speed of supplying the material 31. and a feeder 40.

The chamber may be maintained in a vacuum state using a vacuum pump depending on the quality of the microfiber required. When the work is carried out in a vacuum atmosphere, it is preferable to have a means for carrying out the product without interruption of the work when a certain amount of the product is filled in the product collecting means. For example, a separate buffer chamber is provided in the chamber, and a product collecting means is installed in the buffer chamber, and when the product is taken out, the buffer chamber is closed to block the chamber, and then the product collecting means is taken out, and the other product collecting means is removed. It is desirable to be able to position the in the buffer chamber. In addition, the spout formed in the melting furnace is configured to open and close.

At this time, the material is directly introduced into the melting furnace through the outer wall of the chamber, preferably, the material supply device is an inlet chamber installed on the outer wall of the chamber, a roll holder for fixing the roll wound the material, It is preferable that the feeder is installed between the inlet chamber and the roll holder to adjust the speed of supplying the material wound on the roll to the inlet chamber and supplying the material.

In addition, the inlet chamber is formed of a case and a partition which is installed inside the case and divides the interior into two compartments, and a vacuum pump connected to the respective compartments, both side plates and the partition of the case, the coolant therein It has a passage for the center, the hole for the passage of the material is perforated, the sealing material for maintaining the airtight around the hole formed in the side plate where the material begins to enter and the surface where the case and the chamber are coupled It is good to be installed.

In addition, the inlet chamber is formed with a hole through which the material passes in the center, a passage for a coolant is formed therein, and a sealing material for maintaining airtightness between the material and the hole and the surface where the inlet chamber and the chamber are coupled. Is installed or a hole is formed in the center for the passage of the material, there is a passage for the coolant is formed, a plurality of sealing material outlet is formed on the inner surface of the hole, the outlet is outside the inlet chamber It may be connected to a sealing material storage tank provided, and a sealing material for maintaining airtightness may be installed on a surface on which the inlet chamber and the chamber are coupled.

In addition, it is preferable to additionally install one or more roll holders on the material supply device so that continuous supply of material may be performed.

In addition, an opening having a jaw formed in a circumferential portion is formed in the bottom surface of the chamber, and the door is slidably installed while the airtightness is maintained, and the product collecting means is detachable at the bottom of the door. It is good to be fixed.

The present invention also provides a method for producing a metal microfiber by scattering the molten metal by a rotating drum rotating at a high speed, and solidifying the scattered molten metal, wherein a melting furnace is installed on the upper portion of the rotating drum, and the molten metal is placed on the surface of the rotating drum. Another feature is that the metal is dropped to scatter the molten metal.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of a metal microfiber manufacturing apparatus according to the present invention.

Referring to FIG. 1, a melting furnace 11 is installed inside the chamber 10. The bottom surface of the melting furnace 11 is formed with one or more spouts 15 for ejecting the molten metal, and the number of spouts 15 can be appropriately changed in accordance with the production of the product, the spout 15 in the present invention There is no special limit on the number of). Preferably, a nozzle is provided at the jet port 15 to facilitate the jet of the molten metal.

A rotating drum 12 rotating at a high speed at the lower part of the jet port 15 is installed in the chamber 10. Since the rotary drum 12 is in constant contact with the hot melt, it is preferable to have cooling means to prevent damage by heat. The cooling means may be any means well known to those skilled in the art, for example, a means for passing the coolant through the inside of the shaft of the rotary drum 12, etc., and therefore, the cooling means is not particularly limited in the present invention.

Referring to FIG. 2, an opening is formed in the bottom surface of the chamber 10. The opening is located at the front of the rotational drum 12 in the rotational direction and has a jaw 20 having a constant height on three remaining sides except for a portion contacting the wall surface of the chamber 10.

In addition, a door 21 having a larger area than the opening is slidably installed below the opening. In consideration of the case where the inside of the chamber 10 is operated in a vacuum state, it is preferable to use a sealing material so that air does not leak while the door 21 is closed.

The product collecting means 13 is detachably installed at a lower portion of the door 21. When the product collecting means 13 is mounted to the lower portion of the chamber 10, the door 21 is slid backward so as to communicate with the inside of the chamber 10. Therefore, the microfiber produced is temporarily loaded inside the product collecting means 13 through the opening.

An outer chamber 30, which will be described later, is provided on the outer wall of the chamber 10. The feeder 40 is positioned after the inlet chamber 30. The feeder 40 introduces the raw material 31 into the drawing chamber 30 by the rotation of the rollers 41 and 42 disposed up and down as shown, and changes the height of the raw material 31 according to the change in the height of the molten metal. It is configured to adjust the feeding speed. The feeder 40 may use a generally used NC feeder (N / C Feeder) or a wire feeder (Wire Feeder).

After the feeder 40, two roll holders 33 are installed. The roll holder 33 fixes the roll on which the material 31 is wound, and supplies the material 31 while rotating as the feeder 40 pulls the material 31. As shown in FIG. 2, when one roll of material is exhausted by installing two roll holders 33, the roll roll 33 may be immediately replaced with another roll holder 33 ′ to minimize downtime of the facility. At this time, it is preferable that the bottom plate on which the two roll holders 33 and 33 'are installed can be rotated to more easily replace the roll holder 33.

Referring to FIG. 3, the inlet chamber 30 will be described in detail. As shown, the inlet chamber 30 has a cylindrical shape with an empty inside, and is fixed to the outer wall of the chamber 10 by a fixing screw. At this time, in order to prevent the air from leaking between the fastening surface of the chamber 10 and the inlet chamber 30, a suitable sealing material 58 (O- in Fig. 3) between the fastening surface of the chamber 10 and the inlet chamber 30 is prevented. It is better to intervene through the ring. In addition, a partition wall 50 is installed in the inlet chamber 30 to divide the inside of the inlet chamber 30 into two compartments 51 and 52. Each of the compartments 51 and 52 is provided with a vacuum pump to adjust the vacuum state inside the chamber 10. Preferably, by increasing the number of the partition walls 50, it is preferable to form a larger number of compartments (51, 52) in the inlet chamber (30) to control the vacuum state in multiple stages.

Holes are formed in both side plates 54 and 55 of the inlet chamber 30, the partition wall 50, and the outer wall of the chamber 10 that are coupled to the inlet chamber 30, and the material 31 is formed through the holes. Is supplied into the chamber 10. At this time, since the raw material 31 is in direct contact with the molten metal in the melting furnace 11, the raw material 31 should not be dissolved in the inlet chamber 30 due to the high temperature of the molten metal. To this end, the embodiment forms a passage 56 in the interior of both side plates 54 and 55 and the partition wall 50 of the inlet chamber 30, and circulates the coolant through the passage 56 so that the material 31 ) Is prevented from dissolving. As the coolant, generally used water can be used. In addition, a sealing material 57 (O-ring) is installed in the hole of the plate 54 in which the material 31 starts to be drawn out of the both side plates 54 and 55 so that outside air enters the inlet chamber 30. To prevent them.

4 shows a second embodiment of the retraction chamber 30. In this embodiment, a hole 60 through which the material 31 passes is formed in the center, and the hole 60 is provided with a sealing material 62 for sealing, for example, an O-ring. In addition, a passage 61 for a coolant is formed in the inlet chamber 30 to cool the material 31 while circulating the coolant, for example, the coolant. In addition, the sealing member 63 is interposed between the inlet chamber 30 and the outer wall of the chamber 10.

5 shows a third embodiment of the retraction chamber 30. In this embodiment, a hole through which the material 31 passes is formed in the center, and a plurality of outlets 71 are formed on the inner surface of the hole. In FIG. 5, a total of six outlets 71 are formed, three up and down. The outlets 71 are all connected to a sealing material storage tank 72 installed outside the inlet chamber 30, and the sealing material storage tank 72 has a liquid sealing material stored therein and flows out through the outlet 71. Airtightness is maintained between the material 31 and the hole. In addition, a sealing member 73 is interposed at a position where the inlet chamber 30 and the outer wall of the chamber 10 are coupled to each other.

The operation of the above embodiment will be described below.

In the case of operating the said embodiment for the first time, after melt | disconnecting the blower outlet 15 of the said melting furnace 11 with opening and closing means, the melting furnace 11 is heated and a molten metal is produced. When the height of the molten metal reaches a predetermined level, the spout 15 is opened to allow the molten metal inside the melting furnace 11 to be supplied to the surface of the rotating drum 12 through the spout 15 so that the rotation and frictional force of the rotating drum 12 may be reduced. The molten metal is solidified while flying in the air, and microfiber is formed.

The microfiber thus manufactured is stored in the product collecting means 13 through the opening as described above. When the product collecting means 13 is filled with microfiber due to the continuous work, the product collecting means 13 is removed from the chamber after the door 21 is closed, and then another product collecting means 13 is mounted.

In this process, the microfiber produced is accumulated on the door 21, but the time for replacing the product collecting means 13 is relatively short, so that a large amount is not accumulated. Thereafter, when the door 21 is opened, the stacked microfibers are caught by the jaw 20 and are loaded into the product collecting means 13 so that the work can be continuously performed without stopping the operation of the equipment.

According to the present invention having the configuration described above, it is possible to manufacture microfibers continuously without stopping the operation of the equipment, thereby increasing productivity and reducing manufacturing costs.

In addition, since the height of the molten metal can be maintained at a constant level by controlling the speed of supplying the material into the melting furnace, the quantity and speed of the molten metal supplied through the spout are kept constant, thereby producing high quality metal microfiber.

Claims (9)

delete Chamber 10; A rotating drum (12) rotatably installed in the chamber (10); A melting furnace (11) installed above the rotating drum (12) and having one or more jet holes (15) for supplying molten metal to the rotating drum (12); Opening and closing means for opening and closing the blower outlet 15; A product collecting means 13 for temporarily storing the finished product; It consists of one or more material supply device for supplying the material to the melting furnace 11, The material supply apparatus includes an inlet chamber 30 installed on an outer wall of the chamber 10; A roll holder 33 for fixing the roll on which the material 31 is wound; A feeder installed between the inlet chamber 30 and the roll holder 33 to supply the material 31 wound on the roll to the inlet chamber 30, and to control the speed of supplying the material 31. Metal microfiber manufacturing apparatus, characterized in that consisting of (feeder, 40). The method of claim 2, The retraction chamber 30 includes a case; A partition wall 50 installed inside the case and dividing the interior into two compartments 51 and 52; It consists of a vacuum pump connected to each of the compartments (51, 52), Both side plates (54, 55) of the case and the partition walls (50) have a passage (56) for coolant therein; In the center part, a hole for passing the material 31 is drilled, Sealing materials (57, 58) for maintaining the airtightness is provided on the surface around the hole formed in the side plate (54) where the material (31) begins to be drawn in and the surface where the case and the chamber (10) are coupled. Metal microfiber manufacturing equipment. The method of claim 3, Inside the case, two or more partitions 50 are installed to form three or more compartments, Each of the compartments, a metal microfiber production apparatus characterized in that the vacuum pump is connected. The method of claim 2, The inlet chamber 30 has a hole 60 formed therein for the material 31 to pass through; Inside, a passage 61 for the coolant is formed, A metal microfiber manufacturing apparatus, characterized in that a sealing material (62) for maintaining airtightness is installed between the material (31) and the hole (60) and on the surface where the inlet chamber (30) and the chamber (10) are coupled. The method of claim 2, The inlet chamber 30 has a hole formed at the center thereof for the material 31 to pass therethrough; Inside, a passage for the coolant is formed, On the inner surface of the hole, a plurality of sealing material outlet port 71 is formed, The outlet 71 is connected to the sealing material storage tank 72 installed on the outside of the inlet chamber 30, The inlet chamber 30 and the chamber 10 is coupled to the surface, the metal microfiber manufacturing apparatus, characterized in that the sealing material 73 for maintaining the airtight is installed. The method according to any one of claims 2 to 6, The material supply apparatus, metal microfiber manufacturing apparatus, characterized in that it further comprises one or more of the roll holder (33 '). The method according to any one of claims 2 to 6, In the bottom surface of the chamber 10, an opening in which the jaw 20 is formed in the circumferential portion is formed, In the opening, the door 21 is slidably installed while maintaining airtightness. Under the door (21), the metal microfiber manufacturing apparatus, characterized in that the product collecting means (13) is detachably fixed. delete