WO2006126477A1

WO2006126477A1 - Filling device for powder material

Info

Publication number: WO2006126477A1
Application number: PCT/JP2006/310128
Authority: WO
Inventors: Harumoto Kimura; Kazunari Hanaoka; Yousuke Oyama; Toshikazu Nakano
Original assignee: Matsui Mfg. Co., Ltd.; Kabushiki Kaisha Meiki Seisakusho
Priority date: 2005-05-23
Filing date: 2006-05-22
Publication date: 2006-11-30
Also published as: JP4469755B2; JP2006326847A

Abstract

A filling device for a powder material, having a material feeding hopper for containing and discharging the powder material by a leveling off means, a suction disk where the powder material discharged from a lower part of the material feeding hopper is placed, the leveling off means for leveling off the powder material, placed on the suction disk, so that it corresponds to a female mold, an air suction means for causing the powder material, placed on the suction disk and leveled off, to be sucked and held, and a transfer means capable of, with the powder material sucked and held by the suction disk, transferring the suction disk between the material feeding hopper and the female mold and vertically inverting the suction disk. The air suction means is configured to allow the powder material to fall from the suction disk into the female mold when the air suction means stops sucking air. The suction disk has inside a cavity communicating with the air suction means, and an airflow member is provided on a suction surface of the suction disk. Struts having screw holes in their upper sides are raised in the cavity, and the airflow member is placed and fixed on the struts by screws threaded into the screw holes.

Description

Specification

Powder material filling equipment

Technical field

[0001] The present invention relates to a powder material filling apparatus in a compression molding process such as a press.

Background art

In compression molding processing, a mold is heated to a high temperature in order to melt and react the granular material. A thin plate product, for example, a fuel cell separator is considered as an object of compression molding in such a high temperature heating state.

[0003] By the way, it is extremely important that the fuel cell separator has high surface accuracy as well as gas impermeability and conductivity. For this reason, attempts by press caskets have been increasing in recent years due to the demands of force machining time and cost that were obtained by cutting the graphite plate in the early stage.

[0004] That is, a method in which a predetermined amount of raw material granular material is put into a mold and then heated and pressurized with a press machine to obtain a thin plate-like separator. It can be manufactured in a short time and at a low cost.

[0005] However, the actual situation is that the actually manufactured separator still has poor surface accuracy and does not reach the required level. The reason for this is that it is difficult to distribute evenly and thinly over the entire bottom surface of the female mold when the raw material powder is charged.

[0006] As a solution to such a problem, the technique disclosed in Japanese Patent Laid-Open No. 2001-62858 (Patent Document 1) has been common.

That is, in FIG. 1, reference numeral 50 denotes an input portion having a plurality of input ports 51, and 52 denotes a position below the input portion 50 that closes all of the input ports 51 and a position that opens all. It is the slide plate provided so that sliding was possible. Reference numeral 53 denotes a base that supports the insertion portion 50 and the slide plate 52, 54 denotes a lower mold (female mold), and 55 denotes an upper mold (male mold).

[0008] In the above-described configuration, after the powder particles are charged into the charging unit 50, the powder particles are removed by the scraping rod 56, and then set to the lower mold 54 after a predetermined amount is removed. Then, When the ride plate 52 is slid and the end opening 51 is sequentially opened, the granular material falls into the lower mold 54. Finally, the lower mold 54 is pressed by the upper mold 55 after moving the loading part 50 and the base 53.

[0009] According to the technique disclosed in Patent Document 1, the granular material charged into the charging unit 50 can be made into a constant amount by the scraping bar 56. However, when the powder particles are dropped into the lower mold 54 from the loading part 50, the powder particles may fall in a non-uniform state depending on the moving speed of the slide plate. It was difficult to improve the surface accuracy.

[0010] As described above, Japanese Patent Application Laid-Open No. 2003-223901 (Patent Document 2) discloses that a non-uniform distribution can be prevented depending on the state of the granular material dropped into the lower mold. Technologies are known.

That is, in FIG. 2, 60 is a female mold, and 61 is a powder feeding box having a frame shape that is in close contact with the upper surface of the female mold 60 and that is open at the top and bottom. The powder feed box 61 is loaded with a powdery raw material 62.

Next, the powder feeding box 61 is slid while sliding the upper surface of the female die 60 while putting the powdery raw material 62 into the female die 60.

[0013] It can be seen that the technique disclosed in Patent Document 2 has been improved so that the powdery raw material 62 can be uniformly introduced into the female mold 60.

[0014] However, since the technique shown in Patent Document 2 rubs down the upper surface of the female mold 60, the powdered raw material 62 may be rubbed off thinly on the inner bottom surface of the female mold 60. Impossible

Further, when the upper surface of the female mold 60 is scraped, the scraped powdery raw material 62 is diffused around the upper surface of the female mold 60. Since the female mold 60 is already heated due to preheating before being processed, the powdered raw material 62 that has diffused may solidify and adhere to the female mold 60 during maintenance. There is a problem.

[0016] Incidentally, a method for uniformly filling without using a scraping means is disclosed in JP-A-11-49101 (Patent Document 3). That is, in Fig. 3, C is the container (die) and S is the cavity. [0017] G is a supply hopper placed on the upper surface of the container C, and has a grid g2 on the bottom surface and a lid h2 on the top surface. hi is an air suction inlet provided in the lid h2. Powder P is stored in the supply hopper G.

[0018] In the technique disclosed in Patent Document 3, the powder P is agitated by air tapping (repeating the supply hopper G and the container C into a high pressure state and a low pressure state) with the air suction blow port hi. Then drop evenly from the grid g2 into the cavity S. When the supply hopper G is pulled up in this state, the powder P is separated on the surface of the grid g2.

[0019] According to this method, the powder P can be uniformly filled in the mold without using means such as scraping. However, it is not possible to apply it to powders of any material. For example, in the case of a resin powder containing carbon such as a raw material for a fuel cell separator, when the supply hopper G is pulled up, the grid g2 It leaks and falls and cannot be separated from the mold.

Patent Document 1: Japanese Patent Laid-Open No. 2001-62858

Patent Document 2: Japanese Unexamined Patent Publication No. 2003-223901

Patent Document 3: JP-A-11 49101

Disclosure of the invention

Problems to be solved by the invention

[0020] In view of such a problem, the applicant of the present invention thins the granular material in the female mold without using technical means such as filling the mold directly with powder or air tapping. Japanese Patent Application No. 2004-365191 was filed earlier in order to provide a filling method and a filling device for the granular material in the compression molding process so that it can be charged uniformly and quickly.

[0021] The filling device of Japanese Patent Application No. 2004-365191 uses a suction plate by air suction, and the particulate material is transported and dropped to the female mold while being held by suction on the suction plate. In this way, it is possible to quickly and uniformly add powder particles. However, the structure of the suction cup in the filling device of Japanese Patent Application No. 2 004-365191 required a little work for assembly and replacement of parts, leaving room for improvement in this respect.

[0022] The present invention has been proposed in view of such a problem, and a filling device that allows a powder and granular material to be introduced into a female mold thinly, uniformly and quickly by using an air suction suction disk. In this regard, an improved configuration is provided to facilitate the assembly and disassembly of the suction cup.

Means for solving the problem

[0023] In order to solve the above problems, the powder material filling device according to the first invention is discharged from a material supply hopper for storing and discharging the powder material, and a lower part of the material supply hopper. A suction plate on which the powder material is placed, a scraping means for grinding the powder material placed on the suction plate corresponding to a female mold, and a slide plate on the suction plate Air suction means for adsorbing and holding the powdered granular material, and transfer means for transferring the suction disk between the material supply hopper and the female mold in a state in which the powdered material is adsorbed and held and upside down. The air suction means is configured to drop the particulate material from the suction disk into the female mold by stopping air suction, and the suction disk communicates with the air suction means. It has a cavity inside and ventilates the suction surface of the suction plate In the filling apparatus provided with a material, a plurality of support columns having screw holes on the upper surface are erected in the cavity, and the ventilation member is placed on the support columns and screwed into the screw holes. It is characterized by.

[0024] The powder material filling apparatus according to the second invention includes a material supply hopper for storing and discharging the powder material, and a powder material discharged from a lower part of the material supply hopper. A placement board, a scraping means for grinding the powder material placed on the placement board in correspondence with the female mold, a suction board having a suction surface on the lower surface, and An air suction means for adsorbing and holding the powder material placed on the platen on the adsorption surface; and the adsorbing plate between the material supply hopper and the female mold while adsorbing and holding the powder material. The air suction means is configured to drop the particulate material from the suction plate into the female mold by stopping air suction, and the suction plate. Has a hollow portion communicating with the air suction means, and a ventilation member is provided on the adsorption surface. In the above-described filling device, a plurality of support columns having screw holes on the upper surface are erected in the hollow portion, and the ventilation member is placed on the support columns and screwed into the screw holes. And

[0025] The powder material filling apparatus according to the third invention is the powder material according to the first invention or the second invention. In the material filling apparatus, the column is a bolt, and is screwed into a partition wall provided in the cavity.

[0026] The powder material filling apparatus according to the fourth invention is the powder material filling apparatus according to the first invention or the second invention, wherein a permanent magnet is mounted on the upper part of the support column, and the ventilation member A filter paper is covered on the outer surface, and a partition sheet made of a magnetic material having a plurality of partitions is provided on the outer surface of the filter paper.

[0027] The powder material filling device according to the fifth invention is the powder material filling device according to the fourth invention, wherein the partition sheet is adsorbed by a magnetic force to a screw screwing the ventilation member. It is characterized by being held.

[0028] A granular material filling apparatus according to a sixth aspect of the present invention is the granular material filling apparatus according to the fifth aspect, wherein a cylindrical column head is mounted on the upper portion of the column, and the column A through hole perpendicular to the screw hole is provided in the head, and at least two permanent magnets are inserted into the through hole so as to sandwich the screw hole.

[0029] The powder material filling device according to the seventh invention is the powder material filling device according to the first invention or the second invention, wherein the ventilation member is plate-like and is made of sintered metal or a filter. One or a combination of these is characterized.

[0030] The present invention has been proposed in view of such a problem, and is a filling device that allows a thin and even powder to be poured into a female mold using an air suction suction disk. Therefore, an object is to provide an improved configuration for facilitating the assembly and disassembly of the suction cup.

The invention's effect

[0031] According to the present invention, the following effects can be obtained.

[0032] According to the powder material filling apparatus according to the first aspect of the present invention, the ventilation member can be positioned and mounted simply by mounting the ventilation member on the column and screwing it. The solution can be done easily.

[0033] According to the powder material filling apparatus according to the second invention, in the apparatus configured to adsorb the powder material on the lower surface of the suction disk, assembling the suction disk as in the first invention, Decomposition can be done easily. [0034] According to the powder material filling apparatus according to the third aspect of the present invention, by using bolts for the support columns, they can be detachably screwed into the partition wall provided in the cavity.

[0035] According to the powder material filling apparatus according to the fourth invention, the magnetic partition sheet can be easily set on the outer surface of the ventilation member by the magnetic force of the permanent magnet mounted on the upper portion of the support column. The When filter paper is stacked on the outer surface of the ventilation member, it can be pressed by the partition sheet. Therefore, when replacing the filter paper with a new filter paper, it is easy to remove the partition sheet.

[0036] According to the powder material filling apparatus according to the fifth aspect of the present invention, since the screw is fixed to the ventilation member and the screw is magnetized, the partition sheet is reliably adsorbed and held by the screw.

[0037] According to the powder material filling apparatus according to the sixth aspect of the present invention, the partition sheet is strongly attracted to the screw fixing the ventilation member by the action of the magnetic force line passing through the screw from the permanent magnet. The compartment sheet can be installed easily and reliably.

[0038] According to the powder material filling apparatus according to the seventh aspect of the present invention, the ventilation member is composed of a sintered metal, a filter, or a combination thereof, and therefore has a high degree of freedom in material selection.

Brief Description of Drawings

FIG. 1 is a side view showing a material supply method in a separator manufacturing apparatus as a conventional powder material filling apparatus.

FIG. 2 is a side view showing a material supply method in another conventional separator manufacturing apparatus.

FIG. 3 is a side view showing a material supply method in another conventional powder material filling apparatus.

FIG. 4 is a longitudinal sectional view of an essential part of a powder material filling apparatus according to Embodiment 1 of the present invention.

FIG. 5 is an enlarged detailed cross-sectional view of a part A in FIG.

FIG. 6 is a simplified side view of the powder material filling apparatus shown in FIG. 4.

FIG. 7 is a plan view of a hexagon bolt provided in the powder material filling apparatus shown in FIG. 4.

8 is a cross-sectional view taken along the line VV ′ in FIG.

FIG. 9 is a longitudinal sectional view showing the hexagon bolt in an exploded state. FIG. 10 is a perspective view of a sintered metal provided on the suction disk of the filling device.

FIG. 11 is a perspective view of a suction disk in the filling device.

FIG. 12 is a longitudinal sectional view showing an operating state in the compression molding process of the filling device.

FIG. 13 is a longitudinal sectional view showing another operating state in the compression molding process of the filling device.

FIG. 14 is a longitudinal sectional view showing still another operating state in the compression molding process of the filling device.

FIG. 15 is a longitudinal sectional view showing an operating state of the powder material filling apparatus according to the second embodiment of the present invention.

FIG. 16 is a longitudinal sectional view showing another operating state of the filling device.

Explanation of symbols

1 Powder material filling equipment

2 Material supply hopper

3 Powder material

5 Grinding means

14A Air suction means

20 Transport means

21 Suction plate

22 Cavity

26 (Hexagon) bolt (support)

263 Screw hole

264 bolt head (prop head)

267 Through hole

268 screws

270 Permanent magnet

271 Permanent magnet 30 Ventilation member

31 Sintered metal

32 filter paper

34 Female mold

36 Mounting board

37 Section sheet

39 sections

BEST MODE FOR CARRYING OUT THE INVENTION

The best mode for carrying out the present invention will be described below with reference to the drawings. In addition

The present invention is not limited to the present embodiment. Further, in the description of the present embodiment, parts having the same configuration and operational effects are denoted by the same reference numerals, and redundant description will not be given.

[0042] (Embodiment 1)

FIG. 4 is a longitudinal sectional view of a powder material filling apparatus according to an embodiment of the present invention.

FIG. 5 shows an enlarged detailed cross-sectional view of part A of FIG.

[0043] In Fig. 4, reference numeral 1 denotes the entire powder material filling apparatus. 2 is a material hopper in which the granular material 3 is stored. The material hopper 2 has a supply port 4 for discharging the material at the lower part, and the upper force is appropriately supplemented with the material.

[0044] The powder material 3 is a powder of resin, carbon, metal or the like or a mixture thereof.

[0045] Reference numeral 5 denotes a sliding means comprising an appropriate frame plate 6, which is provided below the material hopper 2 so as to be able to reciprocate. The scraping means 5 scrapes the granular material 3 so that a fixed amount of granular material 3 is supplied to a female mold 34 described later by relative movement between the supply port 4 and the frame plate 6.

[0046] Reference numeral 7 denotes a movable cylinder which forms the main body of the powder material filling apparatus 1, and is attached to a hollow rotating shaft 8. As shown in FIG. 6, the pivot shaft 8 is pivotally supported by support plates 9 arranged on the left and right sides with a movable cylinder 7 interposed therebetween. The support plate 9 has rollers 10 at the top and bottom, and is supported by the guide 11 so as to be movable in the front-rear direction of the page. It is.

[0047] A motor 12 is provided at one end of the rotating shaft 8 via a gear mechanism 13, and a blower or a hose 15 of a vacuum pump 14 is connected to the other end to communicate with an internal hollow portion. is doing.

[0048] 14A is an air suction means constituted by the vacuum pump 14, the hose 15, the hollow rotating shaft 8, the intake hose 25 described later, and the like, and is slid and mounted on the suction plate 21 described later. The adsorbed and held powder material 3 is absorbed.

[0049] Reference numeral 16 denotes an operating rod of the movable cylinder 7, and a suction plate 21 is held at the tip (upper end).

The actuating rod 16 can be moved back and forth in the vertical direction from the movable cylinder 7 by air supplied to and discharged from the movable cylinder 7.

[0051] Reference numeral 17 denotes an air hose for supplying and discharging compressed air to and from the movable cylinder 7.

[0052] Reference numeral 25 denotes an intake hose provided so as to communicate the hollow rotating shaft 8 and an intake port 24 described later of the suction plate 21.

Thus, in FIG. 4, 18 is a fixed cylinder disposed in the vicinity of the side of the movable cylinder 7, and has an operating rod 19 that can be moved back and forth in the horizontal direction by its operation.

The movable cylinder 7 and the rotating shaft 8 can be moved integrally along the guide 11 in the horizontal direction by the forward and backward movement of the operating rod 19. Further, the rotating shaft 8 and the movable cylinder 7 can be integrally rotated by 180 ° by the motor 12 and the gear mechanism.

[0055] The movable cylinder 7, the fixed cylinder 18, and the motor 12 constitute transfer means 20 for transferring and reversing the suction plate 21 in a three-dimensional space between the material hopper 2 and a female die 34 described later. To do.

[0056] Reference numeral 21 denotes the above-described suction disk, on which the particulate material 3 discharged from the supply port 4 of the material hopper 2 is placed. The suction plate 21 is held at the tip (upper end) of the actuating rod 16 and can be moved in the vertical direction by the action of the actuating rod 16, and in the horizontal direction together with the movable cylinder 7 by the action of the fixed cylinder 18. It is movable. Further, the suction plate 21 is rotated 180 ° together with the movable cylinder 7 by the rotation of the motor 12, and is also reversed. Can be restored.

Thus, the suction plate 21 has a substantially rectangular plane as shown in detail in FIGS. 5 and 11, and has a hollow portion 22 inside. The hollow portions 22 communicate with each other through force communication holes 28 that are partitioned vertically by a partition wall 23. Furthermore, the upper surface of the upper cavity portion 22 is open, and the lower cavity portion 22 is communicated with the hose 15 and the vacuum pump 14 through the intake hose 25 through the intake hose 25 as well as the rotational shaft 8 force.

[0058] In addition, a plurality of hexagon bolts (supports) 26 screwed into the partition wall 23 are erected in the upper cavity portion 22 at predetermined intervals. The hexagon bolt 26 is not particularly limited to a hexagon.

As shown in FIGS. 7 to 9, the hexagon bolt 26 has a hexagonal bolt body 260, a screw portion 261 provided at the lower portion, and an upper portion (upper surface) 262 provided with a screw hole 263. Screw part

261 is removably screwed into the partition wall 23.

[0060] 264 is a substantially cylindrical bolt head (post head), and a bottom surface force is provided with a bolt insertion hole 265, and the upper part 262 of the hexagon bolt 26 is inserted into the bolt insertion hole 265. As a result, the hexagon bolt 26 is attached to the upper part 262.

[0061] Reference numeral 266 denotes a screw through hole formed from the upper surface of the bolt head 264. The screw insertion hole 266 has a slightly smaller diameter than the bolt insertion hole 265 described above, and is concentrically connected to the screw hole 263 in a state of being attached to the upper part 262 of the bolt head 264 force S hexagon bolt 26.

[0062] Reference numeral 267 denotes a through hole provided in a side body portion of the bolt head 264, and the bolt insertion hole 26

It is orthogonal to 5.

Reference numeral 268 denotes a screw having a dish-shaped head portion 269, which is inserted from the screw through hole 266 of the bolt head portion 264 and screwed into the screw hole 263 of the upper portion 262 of the hexagon bolt 26. The screw 268 is used to fix a ventilation member 30 to be described later to the suction plate 21.

[0064] Reference numerals 270 and 271 denote cylindrical permanent magnets which are inserted into the through holes 267 of the bolt head 264 and face each other so as to sandwich the upper portion 262. Thus, each magnet 270 and 271 is inserted with the same polarity facing each other!

Reference numeral 29 denotes an upper surface opening, that is, a suction surface of the upper cavity portion 22, and 30 is a ventilation member placed on the hexagon bolt 26 and covered with the suction surface 29. The ventilation member 30 is the hexagon Bolt 26 is positioned and kept horizontal. The ventilation member 30 is constituted by a flat sintered metal 31 or a resin filter, or a combination thereof, and is not limited to this.

The sintered metal 31 of the ventilation member 30 has a plurality of mounting holes as shown in FIG. The ventilation member 30 is fixed on the bolt head 264 by passing a screw 268 through the mounting hole and screwing into the screw hole 263 of the upper part 262 of the hexagon bolt 26. Accordingly, the plurality of mounting holes of the sintered metal 31 correspond to the positions of the hexagon bolts 26 screwed into the partition wall 23.

[0067] Further, the filter paper 32 is simply placed on the sintered metal 31, and is pressed down by a partition sheet 37 described later.

It should be noted that an appropriate pin 33 is provided on the outer peripheral portion of the suction plate 21 and is used for positioning with the slide-off means 5.

Next, the partition sheet 37 will be described. A section sheet 37 as shown in FIG. 11 is formed on a thin mesh-shaped magnetic metal frame 38, and a plurality of sections surrounded by the magnetic metal frame 38.

39.

[0070] In FIG. 11, all of the sections 39 have the same shape and area. The section 39 may be changed as necessary. The partition sheet 37 is pressed against the filter paper 32 by being attracted to magnets 270 and 271 mounted on the hexagon bolt 26.

That is, the magnets 270 and 271 also have a force of magnetic lines passing through the upper part 262 of the hexagonal bolt 26, the screw 268, and the head 269 of the screw 268, so that the magnetic metal frame 38 is powerfully attached to the head 2 of the screw 268.

69 pieces are adsorbed.

[0072] The filter paper 32 has a relatively high replacement frequency compared to the sintered metal 31. However, as described above, since the filter paper 32 is simply pressed by the partition sheet 37 by the magnetic force, the replacement work is very simple.

[0073] In addition, the sintered metal 31 itself is made of a non-magnetic material having corrosion resistance, so that the degree of freedom in material selection is high.

[0074] Hereinafter, a manufacturing process by the powder material filling apparatus will be briefly described with reference to Figs. FIG. 12 shows a state in which the granular material 3 is uniformly cut and placed on the upper surface of the suction plate 21, detached from the scraping means 5, and transferred downward. At this time, the vacuum pump is operated and air is sucked through the sintered metal 31 and the filter paper 32 placed on the adsorption surface 29, and the particulate material 3 is adsorbed on the surface of the filter paper 32 and the uniform state is maintained. Since the partition sheet 37 is placed on the filter paper 32 and the movement of the granular material 3 is suppressed by the mesh-like magnetic metal frame 38, the uniform state of the granular material 3 is more effective. Maintained.

Reference numeral 34 denotes a female die which is preheated at a predetermined position.

FIG. 13 shows the transfer process. That is, with the vacuum pump 14 still operating, the fixed cylinder 18 operates, moves the suction plate 21 together with the movable cylinder 7 in the horizontal direction, transfers it directly above the female die 34, and rotates 180 ° by the operation of the motor 12. Move it down. Even in this state, the particulate material 3 does not fall due to the adsorption force of the vacuum pump 14.

FIG. 14 shows a filling process of the granular material. That is, with the vacuum pump 14 still operating, the operating rod 16 of the fixed cylinder 7 moves forward and the suction plate 21 descends to a position close to the female die 34. Next, the suction force disappears by stopping the vacuum pump 14, so that the granular material 3 falls from the entire surface of the ventilation member 30 into the female mold 34 at once. As a result, a uniform powder layer 35 is formed in the female mold 34.

Thereafter, the process is restored to the standby process through the reverse process.

[0080] (Embodiment 2)

Next, a manufacturing process by the powder material filling apparatus according to the second embodiment will be described with reference to FIGS.

FIG. 15 shows a standby step of the powder material filling apparatus according to the second embodiment.

In FIG. 15, the movable cylinder 7 is provided downward from the beginning, and the suction disk 21 is similarly provided downward, and has a suction surface 29 on the lower surface. As in the first embodiment, the ventilation member 30 is screwed to the suction surface 29, and the partition sheet 37 even presses the surface with a magnetic force. Further, a motor for rotating the hollow shaft 8a is not provided. The slide-off means 5 is provided so as to reciprocate in the horizontal direction by a fixed cylinder 18a different from the fixed cylinder 18 that moves the movable cylinder 7. Further, the scraping means 5 is provided with a mounting board 36 on which the scraped granular material is placed. Placement table 36 Has a ventilation member 30a similar to the suction plate 21, but it is not necessary to provide a partition sheet.

[0083] By operating the fixed cylinder 18a and reciprocating the lower surface of the material supply hopper 2 as indicated by a two-dot chain line with the scraping means 5 and the mounting board 36, the female mold 34 was supported. Grinding of the powder material 3 is performed. As a result, the powder material 3 is uniformly slid and placed on the placement board 36.

[0084] This state force also moves the operating rod 16 of the movable cylinder 7 forward (downward), lowers the suction plate 21 to the upper surface of the mounting plate 36, and operates the vacuum pump 14 to operate the suction surface of the suction plate 21. Adsorb powder material 3 on 29. Next, with the vacuum pump 14 operating, the operating rod 16 of the movable cylinder 7 is retracted to lift the suction plate 21 and pull the mounting plate 36 force away.

Next, as shown in FIG. 16, the fixed cylinder 18 is operated to move the suction plate 21 together with the movable cylinder 17 to a position above the female die 34.

This state force also causes the operating rod 16 of the movable cylinder 7 to advance again to lower the suction plate 21 to the die surface of the female die 34. Next, since the adsorbing power disappears by stopping the vacuum pump 14, the powder material 3 falls from the entire surface of the ventilation member 30 into the female mold 34 at once. As a result, a uniform granular material layer is formed in the female mold 34.

As described above, the first embodiment and the second embodiment have been described. However, even in the case of the V flaw displacement, the powder material 3 is not cut off on the mold surface, and thus has been diffused. The problem that the powder material 3 melts and adheres to the mold surface is eliminated. In addition, since the granular material 3 that has been crushed uniformly by a predetermined amount is transferred and dropped using the adsorption force, it can be filled thinly and uniformly as desired.

[0088] In the second embodiment, since the step of reversing the movable cylinder 7 is not necessary, the step can be simplified.

Industrial applicability

[0089] The present invention simplifies the assembly of the suction disk for thinly and uniformly filling the powder material into the mold using air suction in compression molding, and particularly uses magnetic force. The filter paper can be quickly attached and detached and replaced with It is extremely useful in industry.

Claims

The scope of the claims

[1] A material supply hopper for storing and discharging powder material, a suction plate on which powder material to be discharged is placed under the material supply hopper, and placed on the suction plate A finely chopped powder material corresponding to the female mold, an air suction means for adsorbing and holding the finely pulverized powder material placed on the suction plate, and the fine particle material And a transfer means that can transfer the suction plate between the material supply hopper and the female mold and turn it upside down while the suction suction is held, and the air suction means stops the suction of the air to stop the suction plate force. The powder material is configured to drop into the female mold, the suction plate has a hollow portion communicating with the air suction means, and a ventilation member is provided on the suction surface of the suction plate. In a filling device,

A plurality of struts having screw holes on the upper surface are erected in the hollow portion, and the ventilation member is placed on the struts and screwed into the screw holes. Filling equipment.

[2] A material supply hopper that stores and discharges the granular material, a mounting board on which the granular material discharged from the lower part of the material supply hopper is mounted, and a mounting board on the mounting board. The above-mentioned powder material is sliced and cut off corresponding to the female mold, the suction plate having the suction surface on the lower surface, An air suction means for adsorbing and holding the adsorption surface; and a transfer means capable of transferring the adsorbing plate between the material supply hopper and the female mold in a state where the powder material is adsorbed and held. Is configured to cause the suction plate power to drop into the female mold by stopping the air suction, and the suction plate communicates with the air suction means. In a filling device having an inside and a ventilation member provided on the suction surface,

[3] The filling of the granular material according to claim 1 or 2, wherein the support column is a bolt and is screwed into a partition wall provided in the hollow portion! / apparatus.

[4] A permanent magnet is attached to the top of the support column, and a filter paper is covered on the outer surface of the ventilation member. 3. The powder material filling apparatus according to claim 1, wherein a partition sheet made of a magnetic material having a plurality of partitions is provided on an outer surface of the filter paper.

[5] The powder material filling apparatus according to [4], wherein the partition sheet is screwed to the ventilation member and is adsorbed and held by a magnetic force to a screw.

[6] A cylindrical column head is mounted on the top of the column, and a through hole perpendicular to the screw hole is provided in the column head, and the screw hole is sandwiched in the through hole. at least

6. The powder material filling apparatus according to claim 5, wherein the two permanent magnets are inserted.

[7] The particulate material according to claim 1 or 2, wherein the ventilation member has a plate shape, and is configured by a sintered metal or a filter, or a combination thereof. Filling equipment.