CN214023385U

CN214023385U - Double-pump vacuum die-casting machine for bulk amorphous alloy

Info

Publication number: CN214023385U
Application number: CN202023108282.7U
Authority: CN
Inventors: 陈堂权; 黄文波
Original assignee: Changzhou Jingye Liquid Metal Co ltd
Current assignee: Changzhou Jingye Liquid Metal Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-08-24
Anticipated expiration: 2030-12-22

Abstract

The utility model discloses a double-pump vacuum die casting machine for bulk amorphous alloy, including the mould chamber, mould chamber one side is provided with the smelting chamber, mould chamber and smelting chamber are connected through the intercommunication door, the mould chamber is through the output of a pipeline connection vacuum pump, the smelting chamber is through the output of No. two pipeline connection roots's main pump, the mould chamber is through the output of No. two branch road connection roots's main pump, the input of roots's main pump is connected the input of preceding stage slide valve pump; the utility model discloses a die casting machine sets up the vacuum pump at the input in mould chamber and comes to mould chamber evacuation, reaches the valve of closing No. one below 3000Pa at vacuum, opens No. three valves, takes out the vacuum in the mould chamber below 10Pa through the combination of roots's main pump and preceding stage slide valve pump, can realize extracting the mould chamber vacuum fast, can solve the roots's main pump again and frequently open the problem of damage, the shaping rate of metallic glass product has been improved, the sustainable production of metallic glass product has been realized.

Description

Double-pump vacuum die-casting machine for bulk amorphous alloy

Technical Field

The utility model relates to a preparation technical field of metallic glass product specifically is a double pump vacuum die casting machine for piece metallic glass.

Background

The existing equipment for manufacturing the block amorphous alloy comprises a vacuum vertical die casting machine and a horizontal die casting machine. Two kinds of die casting machines all have common equipment structure just to smelt chamber and mould chamber, and two kinds of cavitys all need the extraction vacuum, let metallic glass die-casting under vacuum environment. The smelting cavity is kept in a vacuum state all the time in the whole equipment action process, and the vacuum of the mould cavity needs to be broken at the moment when the mould cavity needs to be opened and ejected, so that the mould cavity (containing a sprue bush part) originally communicated with the smelting cavity needs to be isolated when the vacuum of the mould cavity is broken, namely, the communication door is closed. After the mould compound die, will mould chamber vacuum, to the shaping of amorphous alloy product, the time requirement of mould chamber evacuation is the shorter the better, in the industry, the combination of the general roots main pump of adoption and preceding stage slide valve pump carries out the evacuation, and the roots main pump just can start at the vacuum below 3000Pa, if will damage it because to the frequent start roots main pump of mould chamber evacuation, and frequent use roots main pump evacuation inefficiency moreover, the preparation efficiency of amorphous alloy product has been reduced.

The utility model discloses a double pump vacuum die casting machine for bulk metallic glass for solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a double pump vacuum die casting machine for piece metallic glass to solve the problem that proposes in the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: a double-pump vacuum die casting machine for bulk amorphous alloy comprises a die cavity, wherein the die cavity is kept in vacuum to provide amorphous alloy liquid forming conditions, a smelting cavity is arranged on one side of the die cavity, the smelting cavity is kept in vacuum to provide conditions for smelting metal ingots into alloy liquid, the die cavity is connected with the smelting cavity through a communication door, the communication door is an inlet of a crucible extending into the die cavity from the smelting cavity, the smelting cavity is kept in a vacuum state all the time in the whole equipment action process, the vacuum of the die cavity needs to be broken when the die cavity needs to be opened and ejected, the originally communicated smelting cavity and the die cavity need to be isolated when the vacuum is broken, namely the communication door is closed, the die cavity is connected with an output end of a vacuum pump through a pipeline, the vacuum pump is used for quickly vacuumizing the die cavity after the vacuum is broken, and the situation that the die cavity is only vacuumized by a Roots main pump is avoided, the vacuum-pumping mould comprises a Roots main pump, a first pipeline, a smelting cavity, a mould cavity, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline, a sixth pipeline, a seventh pipeline, a sixth pipeline, a fifth pipeline, a sixth pipeline, a fourth pipeline, a sixth pipeline, a pipeline. This die casting machine sets up the vacuum pump at the input in mould chamber and comes to mould chamber evacuation, reaches the valve of closing No. one below 3000Pa at vacuum, opens No. three valves, takes out the vacuum in the mould chamber below 10Pa through the combination of roots's main pump and preceding stage slide valve pump, can realize extracting the mould chamber vacuum fast, can solve the roots's main pump again and frequently open the problem of damage, the shaping rate of amorphous alloy product has been improved, the sustainable production of amorphous alloy product has been realized.

Preferably, the crucible is arranged in the die cavity, the crucible is a container for smelting amorphous alloy products, the crucible is connected with the die cavity and the smelting cavity through the movable telescopic rod, after the amorphous alloy ingots are smelted into molten metal in the smelting cavity, the molten metal in the crucible is driven by the movable telescopic rod to be sent into the die cavity to perform the pouring action, the induction heating coil is arranged on the periphery of the crucible and used for heating the crucible, and the amorphous alloy ingots are smelted into the molten metal.

Preferably, mould chamber one side is provided with fixed die plate and movable mould board, the fixed die plate is fixed in a chamber outside one side, the movable mould board can be driven by crank structure and slide along the frame level, does the compound die action to give product chamber constant pressure, be used for letting the metal liquid shaping, fixed die core is connected to the fixed die plate, fixed die plate fixed connection fixed die benevolence, movable mould core is connected to the movable mould board, movable mould board fixed connection movable mould benevolence, the fixed mould benevolence merges with movable mould benevolence and forms the product chamber, the fashioned cavity of metal liquid in product chamber, movable mould benevolence drives and forms the product chamber when the fixed mould benevolence meets by the movable mould board, movable mould board and fixed die plate all connect in the frame.

Preferably, a sprue bush is arranged in the die cavity, the sprue bush is a pipeline through which molten metal flows from the die cavity to the product cavity, a pouring gate is arranged at a position of the sprue bush corresponding to the crucible, the molten metal is poured into the sprue bush from the crucible through the pouring gate, a punch is arranged in the sprue bush, one side of the punch is connected with an injection rod, the injection rod drives the punch to send the molten metal into the product cavity along the sprue bush, an injection oil cylinder is arranged at one end, extending out of the die cavity, of the injection rod, the injection oil cylinder is a power source of the injection rod, and the sprue bush extends out of the die cavity and is communicated with the product cavity.

Preferably, a first sealing ring is arranged at the joint of the fixed die core and the movable die core and used for sealing the product cavity.

Preferably, a second sealing ring is arranged at the position, extending out of the die cavity, of the injection rod, and is used for sealing a gap between the injection rod and the die cavity and keeping the vacuum degree in the die cavity.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is: this die casting machine sets up the vacuum pump at the input in mould chamber and comes to mould chamber evacuation, reaches the valve of closing No. one below 3000Pa at vacuum, opens No. three valves, takes out the vacuum in the mould chamber below 10Pa through the combination of roots's main pump and preceding stage slide valve pump, can realize extracting the mould chamber vacuum fast, can solve the roots's main pump again and frequently open the problem of damage, the shaping rate of amorphous alloy product has been improved, the sustainable production of amorphous alloy product has been realized.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a top view of a double-pump vacuum die-casting machine for bulk amorphous alloy according to the present invention;

FIG. 2 is a front view (mold clamping state) of a double-pump vacuum die casting machine for bulk amorphous alloy according to the present invention;

FIG. 3 is a front view (mold-open state) of a double-pump vacuum die-casting machine for bulk amorphous alloy according to the present invention;

in the figure: 1. a mold cavity; 2. a smelting chamber; 3. a communication door; 4. a first pipeline; 5. a vacuum pump; 6. a first valve; 7. A second pipeline; 8. a Roots main pump; 9. a second branch; 10. a second valve; 11. a third valve; 12. a backing slide valve pump; 13. a crucible; 14. moving the telescopic rod; 15. an induction heating coil; 16. fixing a template; 17. moving the template; 18. fixing a mold core; 19. a movable mould core; 20. a product chamber; 21. a frame; 22. a sprue bush; 23. a punch; 24. an injection rod; 25. injecting an oil cylinder; 26. a first sealing ring; 27. a second sealing ring; 28. pouring the soup into the mouth.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example (b): the utility model provides a technical scheme, as figure 1, a double pump vacuum die casting machine for bulk amorphous alloy, including mould chamber 1, keep the vacuum in mould chamber 1, provide the fashioned condition of amorphous alloy liquid, mould chamber 1 one side is provided with smelts the chamber 2, smelt and keep the vacuum in the chamber 2, smelt for the ingot metal and smelt alloy liquid and provide the condition, mould chamber 1 and smelt chamber 2 and connect through intercommunication door 3, intercommunication door 3 is the entrance that the crucible stretches into mould chamber 1 from smelting chamber 2, smelt chamber 2 and keep the vacuum state in whole equipment action process always, and mould chamber 1 needs to break the vacuum of mould chamber because of the mould opening and ejecting product, when breaking the vacuum, just must keep smelting chamber 2 and mould chamber 1 that originally communicate apart, namely close intercommunication door 3, mould chamber 1 connects the output of vacuum pump 5 through a pipeline 4, vacuum pump 5 is used for taking out the vacuum fast mould chamber 1 after mould chamber 1 breaks the vacuum, avoid using roots's main pump 5 once only to 1 evacuation in mould chamber, protection roots's main pump 5 is not damaged, pipeline 4 is by 6 control switch of a valve, it connects roots's main pump 8 output through No. two pipelines 7 to smelt chamber 2, roots's main pump 8 is used for mould chamber 1 simultaneously and smelts the evacuation in chamber 2, mould chamber 1 connects roots's main pump 8 output through No. two branch road 9, roots's main pump 8 further evacuates mould chamber 1 after mould chamber 1 breaks the vacuum through No. two branch road 9, No. two pipeline 7 is by No. two valve 10 control switch, No. two branch road 9 is by No. three valve 11 control switch, the input of backing slide valve pump 12 is connected to roots's main pump 5 input, when amorphous alloy is smelted, backing slide valve pump 12 keeps mould chamber 1 and the vacuum of smelting chamber 2 to keep below 10Pa through No. two pipeline 7 continuously. This die casting machine sets up vacuum pump 5 at the input of mould chamber 1 and comes 1 evacuation to mould chamber, reach the valve 6 of closing below the 3000Pa at vacuum, open No. three valve 11, the combination that passes through roots main pump 5 and preceding stage slide valve pump 12 with the vacuum in the mould chamber 1 is taken out to below 10Pa, can realize extracting mould chamber 1 vacuum fast, can solve roots main pump 5 again and frequently open the problem of damage, the shaping rate of amorphous alloy product has been improved, the sustainable production of amorphous alloy product has been realized.

As shown in fig. 1-2, a crucible 13 is arranged in a mold cavity 1, the crucible 13 is a container for melting an amorphous alloy product, the crucible 13 is connected with the mold cavity 1 and a melting cavity 2 by a movable telescopic rod 14, after an amorphous alloy ingot is melted into molten metal at a position b of the melting cavity 2, the movable telescopic rod 14 drives the molten metal in the crucible 13 to be sent to a position a of the mold cavity 1 for pouring molten metal, an induction heating coil 15 is arranged at the periphery of the crucible 13, and the induction heating coil 15 is used for heating the crucible 13 to melt the amorphous alloy ingot into the molten metal.

As shown in fig. 2 to 3, a fixed mold plate 16 and a movable mold plate 17 are disposed on one side of a mold cavity 1, the fixed mold plate 16 is fixed on one side of the outside of the mold cavity 1, the movable mold plate 17 can be driven by a crank structure to horizontally slide along a frame 21 to perform a mold closing operation and provide a certain pressure to a product cavity 20 for molding molten metal, the fixed mold plate 16 is connected to a fixed mold core 18, the fixed mold plate 16 is fixedly connected to the fixed mold core 18, the movable mold plate 17 is connected to a movable mold core 19, the movable mold plate 17 is fixedly connected to the movable mold core 19, the fixed mold core 18 and the movable mold core 19 are combined to form the product cavity 20, the molten metal in the product cavity 20 is molded, the movable mold core 19 is driven by the movable mold plate 17 and meets the fixed mold core 18 to form the product cavity 20, and the movable mold plate 17 and the fixed mold plate 16 are both connected to the frame 21.

As shown in fig. 2 to 3, a sprue bush 22 is arranged in the die cavity 1, the sprue bush 22 is a pipeline through which molten metal flows from the die cavity 1 to the product cavity 20, a pouring gate 28 is arranged at a position of the sprue bush 22 corresponding to the crucible 13, the molten metal is poured into the sprue bush 22 from the crucible 13 through the pouring gate 28, a punch 23 is arranged in the sprue bush 22, one side of the punch 23 is connected with an injection rod 24, the injection rod 24 drives the punch 23 to feed the molten metal into the product cavity 20 along the sprue bush 22, an injection cylinder 25 is arranged at one end of the injection rod 24 extending out of the die cavity 1, the injection cylinder 25 is a power source of the injection rod 24, and the sprue bush 22 extends out of the die cavity 1 and is communicated with the product cavity 20.

As shown in fig. 2 to 3, a first sealing ring 26 is disposed at the joint of the fixed mold core 18 and the movable mold core 19, and the first sealing ring 26 is used for sealing the product cavity 20.

As shown in fig. 2 to 3, a second sealing ring 27 is arranged at a position where the injection rod 24 extends out of the die cavity 1, and the second sealing ring 27 is used for sealing a gap between the injection rod 24 and the die cavity 1 and maintaining the vacuum degree in the die cavity 1.

The utility model discloses a theory of operation: firstly, adding an amorphous alloy ingot into a crucible 13, heating and smelting the amorphous alloy ingot into molten metal in a smelting cavity 2 by an induction heating coil 15, then driving the molten metal in the crucible 13 to be sent into a die cavity 1 by a movable telescopic rod 14 to pour the molten metal into a sprue bush 22 from the crucible 13 through a sprue pouring hole 14, driving a punch 23 by an injection rod 24 to send the molten metal into a product cavity 20 along the sprue bush 22, after the product is formed, breaking vacuum in the die cavity 1, driving a movable die plate 17 to horizontally slide along a rack 21 by a crank structure, driving a movable die core 19 to be separated from a fixed die core 18 by the movable die plate 17, and taking down the formed product;

the principle of breaking vacuum in the die cavity 1 is as follows: opening the first valve 6, closing the third valve 11, starting the vacuum pump 5 to vacuumize the die cavity 1, closing the first valve 6 when the vacuum degree reaches below 3000Pa, opening the third valve 11, and pumping the vacuum degree in the die cavity 1 to below 10Pa through the combination of the Roots main pump 5 and the backing stage slide valve pump 12.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a double pump vacuum die casting machine for bulk amorphous alloy, includes die cavity (1), its characterized in that: the improved structure of the Roots type main pump is characterized in that a smelting cavity (2) is arranged on one side of the die cavity (1), the die cavity (1) is connected with the smelting cavity (2) through a communication door (3), the die cavity (1) is connected with the output end of a vacuum pump (5) through a pipeline (4), the pipeline (4) is controlled to be switched by a valve (6), the smelting cavity (2) is connected with the output end of the Roots type main pump (8) through a pipeline (7), the die cavity (1) is connected with the output end of the Roots type main pump (8) through a branch (9), the pipeline (7) is controlled to be switched by a valve (10), the branch (9) is controlled to be switched by a valve (11), and the input end of the Roots type main pump (8) is connected with the input end of a backing stage valve pump (12).

2. The dual-pump vacuum die-casting machine for bulk amorphous alloy according to claim 1, wherein: be provided with crucible (13) in mould chamber (1), crucible (13) are connected by removing telescopic link (14), can go into and go out mould chamber (1) and smelt chamber (2), crucible (13) periphery is provided with induction heating coil (15).

3. The dual-pump vacuum die-casting machine for bulk amorphous alloy according to claim 1, wherein: the die is characterized in that a fixed die plate (16) and a movable die plate (17) are arranged on one side of the die cavity (1), the fixed die plate (16) is connected with a fixed die core (18), the movable die plate (17) is connected with a movable die core (19), the fixed die core (18) and the movable die core (19) are combined to form a product cavity (20), and the movable die plate (17) and the fixed die plate (16) are both connected to a rack (21).

4. The dual-pump vacuum die-casting machine for bulk amorphous alloy according to claim 1, wherein: the improved die is characterized in that a sprue bush (22) is arranged in the die cavity (1), a pouring gate (28) is arranged at a position where the sprue bush (22) corresponds to the crucible (13), a punch (23) is arranged in the sprue bush (22), one side of the punch (23) is connected with an injection rod (24), one end, extending out of the die cavity (1), of the injection rod (24) is provided with an injection oil cylinder (25), and the sprue bush (22) is communicated with the product cavity (20) after extending out of the die cavity (1).

5. The dual-pump vacuum die-casting machine for bulk amorphous alloy according to claim 3, wherein: and a first sealing ring (26) is arranged at the joint of the fixed die core (18) and the movable die core (19).

6. The dual-pump vacuum die-casting machine for bulk amorphous alloy according to claim 4, wherein: and a second sealing ring (27) is arranged at the position where the injection rod (24) extends out of the die cavity (1).