JP2007118023A - Powder molding press device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve such a problem that, regarding the conventional powder molding press device, when powder is fed into a die and pressurization is performed by an upper side cylinder and a lower side cylinder, fine powder is scattered. <P>SOLUTION: Regarding this invention, 1 is a fixed stand, 2 is a die, 3 is a lower side cylinder, 4 is a feeder, 5 is powder, and 6 is an upper side cylinder. Since their constitutions are the same as those of the conventional example, descriptions are obviated. In this embodiment, the circumference of the upper side cylinder 6 on the fixed stand 1 and the circumference of the feeder 4 lying at a waiting position are covered with an ultrasonic reflection cover 7, the front of the ultrasonic reflection cover 7 around the upper side cylinder is fixed with the irradiation face of an ultrasonic vibrator 8 so as to be contacted with the ultrasonic reflection cover 7, and oscillation output is applied from an oscillator 9 to the piezoelectric vibrator of the ultrasonic vibrator 8. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a powder molding press apparatus that fills a mold with powder and pressurizes with an upper cylinder and a lower cylinder to mold a molded product.

  Conventionally, as shown in FIG. 3, a die 2 provided with a mold 2a is fixed to the lower surface of the fixed base 1, and a hole 1a of the same mold as this mold is formed in the fixed base 1, and the lower side of the mold 2a After the lower cylinder 3 is inserted and the feeder 4 is moved on the fixed base 1 and the powder 5 is supplied from the feeder 4 to the mold 2a, the feeder 4 returns to the standby position. The upper cylinder 6 is inserted into the hole 1a of the fixed base 2a, and the powder 5 is pressed to form a molded product.

  However, in the powder press apparatus configured as described above, when the powder 5 is supplied to the die 2a of the die 2 by the feeder 4, fine powder is scattered into the air, and the powder 5 is dispersed in the upper cylinder 6 and When pressurizing with the lower cylinder 3, there is a problem that fine powder marks are scattered into the air. At present, the installation place of the powder press apparatus is specified and divided, and the mask and goggles are used in the work in that place. Is required by the Health and Safety Management Law.

  The problem to be solved is that the conventional powder molding press apparatus has a problem that fine powder is scattered when the powder is supplied to the mold and when the upper cylinder and the lower cylinder are pressurized.

  In the present invention, the long fixed base has a die fixed to the lower part, provided with a hole substantially the same as the die mold, and the feeder slides the upper surface of the fixed base to supply powder to the mold, The upper cylinder is inserted from the upper side of the mold, the lower cylinder is inserted from the lower side of the mold, and the ultrasonic reflection cover covers the periphery of the upper side of the fixed base, the periphery of the upper cylinder and the periphery of the feeder. The child is attached to the outside of the ultrasonic reflection cover, oscillated output is applied from the oscillator, and the powder scattered in the ultrasonic reflection cover is aggregated and dropped by the ultrasonic wave from the ultrasonic vibrator.

  In the powder molding press apparatus of the present invention, the fine powder scattered in the ultrasonic reflection cover is aggregated and dropped by the ultrasonic wave generated from the ultrasonic vibrator, so that the fine powder is almost scattered from the ultrasonic reflection cover to the outside. There is an advantage that the operator does not need to wear goggles or a mask.

  In the present invention, the fine powder scattered in the air is confined in the ultrasonic reflection cover, and the fine powder scattered in the ultrasonic reflection cover is aggregated and dropped by the ultrasonic wave irradiated in the ultrasonic reflection cover. Can do.

  1 is a perspective view of a powder molding press apparatus according to an embodiment of the present invention, FIG. 2 is a front view of the powder molding press apparatus of FIG. 1, 1 is a fixing base, 2 is a die, 3 is a lower cylinder, 4 Is a feeder, 5 is a powder, and 6 is an upper cylinder. Since these structures are the same as those in the above-described conventional example, the description is omitted. In this embodiment, the periphery of the upper cylinder 6 on the fixed base 1 and the standby Cover the periphery of the feeder 4 at the position with the ultrasonic reflection cover 7, and fix the irradiation surface of the ultrasonic transducer 8 in contact with the ultrasonic reflection cover 7 on the front surface of the ultrasonic reflection cover 7 around the upper cylinder. The oscillation output is applied from the oscillator 9 to the piezoelectric vibrator of the ultrasonic vibrator 8.

  In the powder molding press apparatus of the present example configured as described above, an oscillation output is applied from the oscillator 9 to the ultrasonic vibrator 8 and ultrasonic waves are irradiated from the ultrasonic vibrator 8 into the ultrasonic reflection cover 7. In this state, the lower cylinder 3 is inserted into the die 2a of the die 2, the feeder 4 is moved, the powder 5 is supplied to the die 2a of the die 2, and the upper cylinder 6 is inserted into the die 2a from above. When the pressure is applied, the fine powder of the powder 5 is scattered in the ultrasonic reflection cover 7, but the scattered fine powder is agglomerated by the ultrasonic dense wave from the ultrasonic vibrator 8 and is ultrasonicated. Since it falls into the reflection cover 7, there is an advantage that the fine powder scattered in the ultrasonic reflection cover 7 is not scattered outside the ultrasonic reflection cover 7 and contaminates the surroundings.

  In the above embodiment, the ultrasonic transducer 8 is mounted on the front surface of the ultrasonic reflection cover 7 that covers the periphery of the upper cylinder 6. However, the ultrasonic transducer 8 may be mounted on the side surface or other parts, Two or more vibrators may be provided.

It is a perspective view of the powder formation press apparatus of the Example of this invention. It is a front view of the powder formation press apparatus of FIG. It is a block diagram of the conventional powder press molding apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fixed stand 2 Dies 3 Lower cylinder 4 Feeder 5 Powder 6 Upper cylinder 7 Ultrasonic reflection cover 8 Ultrasonic vibrator 9 Oscillator

Claims (1)

  A long fixed base having a die fixed to the lower part and provided with holes substantially the same as the die mold; a feeder that slides on the upper surface of the fixed base and supplies powder to the mold; and An upper cylinder inserted from the upper side of the mold, a lower cylinder inserted from the lower side of the mold, an ultrasonic reflection cover covering the upper periphery of the fixed base, the periphery of the upper cylinder and the periphery of the feeder And an ultrasonic vibrator attached to the outside of the ultrasonic reflection cover and applied with an oscillation output from an oscillator, and powder scattered in the ultrasonic reflection cover by ultrasonic waves from the ultrasonic vibrator. A powder forming press characterized by agglomerating and dropping.

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