TW200927332A - Mold cooling apparatus - Google Patents

Abstract

A mold cooling apparatus comprises a mold, a cooling channel, and a base. The mold provides a gathering portion on the top of the mold and a molding cave inside the mold. The molding cave provides a first opening connecting to the gathering portion and a second opening connecting to the bottom of the mold. The cooling channel is disposed inside the mold and has a distance between the cooling channel and the molding cave. The cooling provides a connecting opening connecting to the bottom of the mold. The base provides a recess for the mold to be placed in, a via hole and a plurality of through holes. The via hole and the through holes connect to the recess. The via hole connects to the second opening of the molding cave, and the through holes connect to the connecting opening of the cooling channel to improve the cooling efficiency.

Description

200927332 IX. Description of the invention: [Technical field to which the invention pertains] The invention relates to a mold cooling device, and more particularly to a mold cooling device capable of improving cooling efficiency. [Prior Art] In general, §, metal glass is a metal glass material that is melted, and the atomic structure in the metallic glass material is disordered and irregular by fast = cooling, thus forming an amorphous structure of metallic glass. Moreover, since glass is generally excellent in high strength, high hardness, high elasticity, high impurity, abrasion resistance, and soft magnetic properties, it has been widely used as various materials and used in various fields. ^ί-riJ There are many ways to make bulk metallic glass, for example: copper mold binding method: water quenching method, high pressure die casting method, copper mold casting method or atomized powder molding method, etc. The suction casting method generally uses a conventional mold cooling device to produce a bulk metallic glass. As shown in the figure i, the conventional mold cooling device is provided with a mold 7 and a base 9; the mold 7 is provided with a collecting portion 71 and a mold.

92 is aligning the cavity 72 of the mold 7, 'so that the mold 7 is received in the base 八72'. The gathering portion 71 is formed on the top surface of the mold 7, and the cavity is respectively connected to the bottom of the mold 7. And the collecting portion 71; a cooling passage 8 is formed in the interior of the base 9 for circulating a cooling medium in the cooling passage 8 and an air hole 92 for receiving the mold 7, the air hole 9 When the groove 91 is 'connecting the air hole to the cavity'

200927332 Ο

In the cooling device, the predetermined metallic glass material is first placed in the collecting portion 71, and then the molten metal material is melted into a fluid state by a high-voltage arc, and the air hole 92 is conveniently connected by an air extracting device and pumped. The gas absorbing casting uses a pressure difference to cause the molten metal glass material to flow into the cavity 72 from the collecting portion 71; and then the cooling medium is circulated in the cooling passage 8 to exchange heat of the high heat of the mold 7. And then rapidly reducing the temperature of the molten metal glass of the fluid state 'until the temperature of the molten metal glass reaches below the glass transition temperature (Tg), the solid state can be rapidly formed and the desired block metal frit can be formed. The fresh SI above-mentioned cooling device for the block metal glass has the following disadvantages, for example, the mold 7 is disposed in the groove 91 of the base 9, and the mold 7 and the base 9 are not formed, so that the mold 7 and the base There is still an interface layer between 9 and the cooling passage 8 is disposed in the base 9, so that the high heat of the mold 7 needs to be conducted through the interface layer, so that the heat can be taken away by the cooling passage, so that The cooling medium in the cooling passage 8 can only indirectly cool the mold 7, resulting in a significant decrease in heat transfer efficiency. For the above reasons, it is necessary for the bamboo to further improve the cooling device of the above-mentioned block glass. SUMMARY OF THE INVENTION * The main object of the present invention is to provide a mask cold (four) set, which is attached to the inner shaft of the mold - cooling the Wei, and the money is used to make the present invention have the effect of improving the cooling efficiency. The mold cooling device according to the present invention comprises a mold and a cooling passage and a base, and the mold is provided with a collecting portion formed on the surface of the mold 7 200927332 and a mold opening > The cavity includes a first opening communicating with the collecting portion and a second opening communicating with the bottom surface of the mold; the cooling passage is formed inside the mold and has a spacing from the cavity, the cooling passage is provided with a communication An opening is formed in the bottom surface of the mold; the base is provided with a valley groove for the mold to be combined, a gas hole and a plurality of perforations, the air hole and the plurality of perforations are communicated with the receiving groove, and the working hole is connected to the mold The second opening of the hole is connected to the communication opening of the cooling passage, thereby improving the cooling efficiency. [Embodiment] The above and other objects, features, and advantages of the present invention will become more apparent from the claims. As shown in Fig. 2, the mold cooling of the first embodiment of the present invention includes a mold 1, a cooling passage 2, and a base 3. The mold! It is carried on the top surface of the base 3, and the cooling passage 2 is directly formed inside the mold 1. Λ © Referring to Figures 2 and 3, the mold i of the first embodiment of the present invention may be made of copper or other metal material having good thermal conductivity, and the mold 1 is preferably selected to be a cylinder. The utility model comprises a shoulder portion u, a collecting portion 12 and a cavity 13; the shoulder portion 11 is selected to be formed by the outer diameter of the mold 1; the gathering portion 12 is formed on the top surface of the mold 1 to #容置-Preparation to form a metallic glass material of a bulk metallic glass; the cavity 13 is formed inside the mold, and the cavity 13 can be selected as a through hole of a specific shape, and the two ends of the cavity 13 Forming a first opening 200927332 respectively

And the second opening 132' is connected to the collecting portion, and the second opening 132 is penetrated through the bottom surface of the mold. j. Referring again to FIGS. 2 and 3, the passage 2 of the first embodiment of the present invention is a passage formed inside the mold, and the cooling passage 2 is provided with a communication opening 2i penetrating the mold. a bottom surface, but the cooling passage 2 and the cavity 13 have a spacing, so that the cooling passage 2 and the cavity 13 are not in communication with each other; in this embodiment, the cooling passage 2 is selected as a second ring groove, and The cooling passage 2 surrounds the periphery of the cavity, and the bottom surface of the mold 1 communicates with each other, so that the communication opening 21 is _ annular opening & _ please refer to FIGS. 2 and 3 again, in this embodiment In the example, the bottom surface of the mold 1 is recessed with a joint portion 14 for receiving a cover plate 15 , and the joint between the cover plate 15 and the mold 1 is improved by the joint portion 14 . The plate 15 is provided with a venting hole 151 and a plurality of through holes 152. When the cover plate 15 is disposed on the joint portion 14, the cover plate 15 covers the second opening 132 of the cavity 13 and the cooling unit. a communication opening 21; the air vent 151 is connected to the second opening 132; the through hole 152 is connected to the communication opening 21 at the same time Connectivity. Referring to the second and third embodiments, the base 3 of the first embodiment of the present invention is provided with a receiving slot 31, an air hole 32 and a plurality of through holes 33. The receiving slot 31 is for receiving the mold 1 'The mold 1 can be stably coupled to the base 3, and at the same time, the shoulder portion 11 abuts against the end surface of the accommodating groove 31; the air hole 32 communicates with the accommodating groove 31, the air hole 32 and the accommodating groove The other end of the 31 is provided with an air suction joint 321 for connecting to an air suction system (such as an air suction motor); the through hole 33 is connected to the receiving groove 31, and the wear and tear is 200927332 33 and the receiving groove 31. The other end of the adjacent end is provided with a joint 331 which is connected to a cooling pipe through which the cooling medium flows; wherein, when the mold 1 is received in the receiving groove 31, each of the through holes 33 is connected to the The opening 21 is communicated with the air hole 32, and each of the through holes 33 is located opposite to the through hole 152. In this embodiment, four through holes 152 and four through holes 33 are selected, and two corresponding through holes 33 and one through hole 152 are selected as the input holes of the cooling medium, and the other two corresponding to each other are selected. The through hole 33 and the two through holes 152 serve as the delivery holes of the cooling medium. Referring again to Figures 2 and 3, when the mold cooling device of the present invention is used, the metal glass material is first placed on the gathering portion 12 of the mold 1, and then a high voltage arc is applied to the metallic glass material. Heating the metallic glass material by the high heat generated by the I-y high-alloy arc and melting it to form a metallic glass material in a fluid state; and then pumping with a pumping system connected to the suction joint 321 Gas, the gas in the cavity π is removed. 'The fluid state metallic glass material located in the collecting portion 12 flows into the cavity 13 by the pressure difference between the cavity 13 and the outside; at this time, the cooling The medium is input through a perforation 33 as an input hole and flows in the cooling passage 2 and flows out through the perforation 33 as an output hole to form a circulation cooling passage by which the fluid located in the cavity 13 is to be located. The heat remaining in the state of the glass material is rapidly transmitted to the cooling medium 该 of the cooling passage 2 and the heat is led out to the mold 1 by the cooling medium, so that the temperature of the molten metal glass material can be quickly cooled. And the glass transition temperature (Tg). In the next, and cured to form the bulk metallic glass 13 to be the shape of the mold cavity, and then the bulk metallic glass 200927332 be taken out from the inside of the mold cavity 13. Referring to Fig. 4, there is disclosed a cooling device of a second embodiment of the present invention. Compared with the first embodiment, in the present embodiment, the members of the joint portion 14 and the cover plate 15 are mainly omitted to improve the assembly convenience of the mold cooling device of the present invention. When the mold 1 is received in the accommodating groove 31, each of the through holes 33 is directly aligned with the communication opening 21, and the air vent 32 is directly aligned with the cavity 13. The rest of the construction and operation are the same as in the first embodiment, and will not be described herein. Ο

As described above, the passage 8 is disposed in the base 9 as compared with the conventional mold cooling device of Fig. 1, and an interface layer exists between the mold 7 and the base 9, so that the cooling passage 8 is The cooling medium can only indirectly cool the mold 7, resulting in the disadvantage of low heat transfer efficiency; in contrast, the invention of Fig. 2 is formed by directly cooling the rhyme (4) into the cooling passage 2, by means of (4) cooling series 2 The crucible is directly cooled, thereby improving the cooling efficiency of the mold 1. Although the present invention has been disclosed by the above-described preferred embodiments, it is not intended to limit the invention. Any skilled person skilled in the art will not be able to depart from the spirit and scope of the present invention. The scope of protection of the present invention is therefore defined by the scope of the appended claims. 200927332 [Simplified description of the drawings] Fig. 1: A cross-sectional view of a conventional mold cooling device. Fig. 2 is a perspective exploded view of the mold cooling device of the first embodiment of the present invention. Fig. 3 is a sectional view showing the combination of the mold cooling device of the first embodiment of the present invention. Fig. 4 is a sectional view showing the combination of the mold cooling device of the second embodiment of the present invention.

[Main component symbol description]

1 Mold 11 Shoulder 12 Gathering portion 13 Cavity 131 First opening 132 Second opening 14 Joint portion 15 Cover plate 151 Ventilation hole 152 Through hole 2 Cooling passage 21 Communication opening 3 Base 31 accommodating groove 32 Air hole 321 Venting joint 33 Perforation 331 Connector 7 Mold 71 Aggregation 72 Cavity 8 Cooling path 9 Base 91 Groove 92 Air hole

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Claims (1)

200927332 . ' X. Patent Application B ·· 1. A mold cooling device comprising: • a mold having a collecting portion and a cavity formed on a top surface of the mold, the cavity forming Inside the mold and including a first opening and a second opening, the first opening is connected to the collecting portion, and the second opening is inserted through the bottom surface of the mold; a cooling passage is formed inside the mold and The locating hole has a nip, the cooling passage is provided with a communication opening penetrating the bottom surface of the mold; and the base is provided with a receiving groove, an air hole and a plurality of perforations, the accommodating groove is for the mold In combination, the air hole and the plurality of perforations are in communication with the receiving groove, and the air hole is connected to the second opening of the cavity, and the through hole llfg- is connected to the communication opening of the cooling passage. 2. The mold cooling device according to claim w, wherein the cooling passage is a ring groove. 'Applicable according to the mold described in item 1 or 2 —13 —