Vacuum melting and die casting system for amorphous alloy

Abstract

The application relates to the technical field of die casting and discloses an amorphous alloy vacuum melting die casting system, which comprises a die casting mechanism, a barrel provided with a type cavity communicated with a die casting die at a head plate, and a sealing end cover arranged on the outer end surface of the barrel; a pressure injection mechanism, one end of a pressure injection rod being sealingly and slidingly arranged in the barrel, and a sealing groove being formed in the outer periphery of a feeding port of the barrel; a lifting mechanism fixed on the head plate and having a mounting plate capable of moving up and down; a vacuum melting mechanism arranged on the mounting plate, a discharging port of a melting cavity being opposite to the feeding port of the barrel, and a sealing piece being arranged on the discharging port and opposite to the sealing groove; wherein when the mounting plate moves downwards to a preset position, the sealing piece abuts against the sealing groove, and a closed space is formed among the type cavity, the barrel and the melting cavity. The amorphous alloy vacuum melting die casting system has good airtightness during die casting operation, and the vulnerable parts near the barrel are convenient to maintain and replace.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of die casting, in particular to a non-crystalline alloy vacuum melting die casting system. BACKGROUND

[0002] Non-crystalline alloy has excellent performance in strength, hardness, toughness and the like. In order to ensure its non-crystalline characteristics, special attention needs to be paid to temperature control during preparation and processing to form a non-crystalline state, and oxygen needs to be kept away at all times to avoid oxidation failure. However, the working environment of a traditional die casting machine is difficult to match the requirements of high-precision temperature control and a vacuum environment required by non-crystalline alloy. In some existing non-crystalline alloy die casting schemes, a full-cover type vacuum environment shell is too large, which affects the execution of processes such as feeding, melting and taking of non-crystalline alloy that need to open the vacuum environment shell, and also greatly prolongs the construction time of the vacuum environment, which is not conducive to efficient mass production. Some small vacuum melting cavity schemes are fixed on the barrel, which is poor in cooperation with the head plate structure of the die casting machine and the melting system. The interference between the feeding system and the vacuum melting cavity affects the injection stroke during the injection process. The injection punch, barrel and other vulnerable parts lack replacement positions and are difficult to replace. SUMMARY

[0003] The present application is made to solve the above technical problems, and one of its purposes is to provide a non-crystalline alloy vacuum melting die casting system which has good airtightness during die casting operation, and the vulnerable parts near the barrel are convenient to maintain and replace.

[0004] According to one embodiment of the present application, a non-crystalline alloy vacuum melting die casting system is provided, which comprises: a die casting mechanism, a barrel is arranged at a head plate and is in communication with a cavity of a die casting mold, an outer end surface of the barrel is provided with a sealing end cover; an injection mechanism, one end of an injection rod is sealingly and slidingly arranged in the barrel, and a sealing groove is formed in the outer periphery of a feeding port of the barrel; a lifting mechanism, which is fixed on the head plate and has an installation plate capable of moving up and down; a vacuum melting mechanism, which is arranged on the installation plate, a discharging port of a melting cavity is opposite to the feeding port of the barrel, and a sealing member is arranged on the discharging port and opposite to the sealing groove; wherein, when the installation plate moves downward to a preset position, the sealing member abuts against the sealing groove, and a closed space is formed between the cavity, the barrel and the melting cavity.

[0005] As one embodiment, the injection rod comprises an injection punch, an intermediate segment and a fixed segment, the injection punch is slidingly arranged in the barrel and in a compression chamber in front of the cavity, the fixed segment is outside the barrel and is connected with an injection cylinder, and the intermediate segment is between the injection punch and the fixed segment; wherein, in the injection stroke of the injection rod, the intermediate segment is in dynamic sealing with the sealing end cover.

[0006] As an embodiment, the injection punch is threadedly connected with the intermediate section, the fixed section is threadedly connected with the intermediate section, and the threads of the two ends of the intermediate section are reverse threads.

[0007] As an embodiment, the outer surface of the intermediate section is roughened.

[0008] As an embodiment, the seal is a sealing rubber ring with a shape matching the sealing groove.

[0009] As an embodiment, the head plate is provided with a recess, one end of the vacuum melting mechanism is arranged in the recess, and the feeding port of the barrel is arranged at the position of the recess.

[0010] As an embodiment, the injection cylinder of the injection mechanism is connected with the base plate, three connecting rods are arranged between the base plate and the head plate, two of the connecting rods are symmetrically arranged at the lower part of the base plate and the head plate, and the other connecting rod is eccentrically arranged at the upper part of the base plate and the head plate.

[0011] As an embodiment, the lifting mechanism comprises a driving device fixed on the head plate and having an output end capable of moving up and down, a first guide fixed on the head plate, a lifting bracket connected with the output end, and a second guide fixed on the lifting bracket and vertically slidably connected with the first guide, wherein the mounting plate is fixed on the second guide.

[0012] As an embodiment, the driving device comprises two lifting cylinders arranged on the two sides of the vacuum melting mechanism, and the lifting mechanism comprises two groups of symmetric first guides, second guides and mounting plates.

[0013] As an embodiment, the second guide is a plate member with a slot, and the first guide is a plate member with one end extending into the slot; or the first guide is a plate member with a slot, and the second guide is a plate member with one end extending into the slot.

[0014] According to the above description and practice, when the mounting plate moves downward to the preset position, the seal abuts against the sealing groove at the feeding port, a closed space is formed between the cavity, the barrel and the melting cavity, the closed space is in a vacuum environment after the vacuumizing device of the vacuum melting mechanism operates, and the subsequent melting and pouring of the amorphous alloy can be performed in the vacuum or the vacuum environment. When the barrel or the injection rod or other parts near the barrel need to be maintained or replaced, the vacuum melting mechanism can be separated from the barrel by using the lifting mechanism, an operation space is provided for the maintenance and replacement, and the die casting system is more convenient to use and maintain. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Schematic diagram of the structure of an amorphous alloy vacuum melting and die-casting system involved in one embodiment of the present invention.

[0016] Figure 2a and Figure 2b FIG1 is a schematic diagram of a partial cross-sectional structure of an amorphous alloy vacuum melting and die-casting system involved in one embodiment of the present invention. Figure 2a The injection rod is at the initial position of the injection stroke. Figure 2b The injection rod is at the end position of the maximum injection stroke.

[0017] Figure 3 Schematic diagram of the structure of the injection rod in the amorphous alloy vacuum melting and die-casting system involved in one embodiment of the present invention.

[0018] Figure 4 Schematic diagram of the structure of the barrel in the amorphous alloy vacuum melting and die-casting system involved in one embodiment of the present invention.

[0019] Figure 5 The figure is a schematic diagram of the assembly between the injection rod, barrel and head plate in the amorphous alloy vacuum melting and die-casting system involved in one embodiment of the present invention.

[0020] Figure 6a and Figure 6b The figure is a schematic diagram of the assembly between the lifting mechanism and the head plate in the amorphous alloy vacuum melting and die-casting system involved in one embodiment of the present invention.

[0021] Figure 7 Schematic diagram of the structure of the lifting mechanism in the amorphous alloy vacuum melting and die-casting system involved in one embodiment of the present invention.

[0022] Figure 8 The figure is a schematic diagram of the assembly between the base plate and the head plate in the amorphous alloy vacuum melting and die-casting system involved in one embodiment of the present invention.

[0023] Figure 9 It is a schematic side structural diagram of a plate in an amorphous alloy vacuum melting and die-casting system involved in one embodiment of the present invention.

[0024] The reference numerals in the figures are:

[0025] 11, head plate; 12, barrel; 13, sealing end cover; 14, feeding port; 15, compression chamber; 16, sealing groove; 17, recess; 18, platen; 19, connecting rod; 21, injection rod; 22, injection cylinder; 211, injection punch; 212, intermediate section; 213, fixed section; 31, mounting plate; 32, driving device; 33, first guide; 34, lifting support; 35, second guide; 36, output end; 37, strip slot; 4, vacuum melting mechanism; 41, discharge port; 42, sealing element. DETAILED DESCRIPTION

[0026] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the implementations set forth in this disclosure. Rather, these implementations are provided as non-limiting examples, so that this disclosure will fully convey the scope of the example implementations to those skilled in the art. The described features, structures, or characteristics can be combined in one or more implementations.

[0027] In addition, the accompanying drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this disclosure. The drawings illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure. In the drawings:

[0028] Unless otherwise defined, the terms "mounting", "connected", "connecting" should be construed as broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium; can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0029] According to one embodiment of the present disclosure, a non-crystalline alloy vacuum melting die casting system is provided, please refer to Figures 1 to 9 The non-crystalline alloy vacuum melting die casting system includes a die casting mechanism, an injection mechanism, a lifting mechanism, and a vacuum melting mechanism 4.

[0030] In the drawings, only the head plate 11 and the barrel 12 of the die casting mechanism are shown, other structures such as the fixed die, the movable die, the middle plate, the tail plate, the mold opening and closing cylinder, etc. are not shown in the drawings, and they are not the innovations of the present embodiment, and there are corresponding technical solutions in the prior art, so they will not be described here. The head plate 11 is also called the fixed die seat plate, which is mainly used to fix the fixed die of the die casting machine. The barrel 12 in the present embodiment is arranged at the head plate 11, one end of which is in communication with the cavity of the die casting mold (movable die and fixed die), and the other end of the barrel 12 is inserted with a plunger 21, and the material in the barrel 12 can be pressed into the cavity under the pushing of the plunger 21. The outer periphery of the feed port 14 of the barrel 12 is formed with a sealing groove 16. Since the die casting system in the present embodiment is applied to amorphous alloy die casting, a sealing end cover 13 is arranged at the outer end surface of the barrel 12, i.e. the right end in the figure, so as to set a vacuum or high vacuum working environment. Figure 2a

[0031] The plunger mechanism includes a plunger cylinder 22 and a plunger 21, one end of the plunger 21 is inserted into the barrel 12 and is sealingly arranged in the barrel 12 by means of the sealing end cover 13. The lifting mechanism is fixed on the head plate 11 and has a mounting plate 31 which can move up and down. The vacuum melting mechanism 4 is arranged on the mounting plate 31, the discharge port 41 of the melting cavity thereof is opposite to the feed port 14 of the barrel 12, and a sealing member 42 opposite to the sealing groove 16 is arranged on the discharge port 41. The vacuum melting mechanism 4 has the functions of melting and vacuumizing, and can set a vacuum or high vacuum environment in a closed space.

[0032] When the non-amorphous alloy vacuum melting die casting system is used, when the mounting plate 31 moves downward to a preset position, the sealing member 42 abuts against the sealing groove 16, and a closed space is formed between the cavity, the barrel 12 and the melting cavity, at this time, the vacuumizing device of the vacuum melting mechanism 4 operates to make the closed space in a vacuum or high vacuum environment, and the subsequent melting and pouring of the non-amorphous alloy can be carried out in the vacuum or high vacuum environment. When it is necessary to maintain, replace the barrel 12 or the plunger 21 or other parts near the barrel 12, the vacuum melting mechanism 4 can be separated from the barrel 12 by using the lifting mechanism, so as to provide an operation space for the maintenance and replacement operation, so that the die casting system is more easy to use and maintain.

[0033] It should be noted that one of the purposes of the present application is to provide a non-amorphous alloy vacuum melting die casting system which is more easy to use and maintain, wherein the specific structure of the vacuum melting mechanism 4 and the sealing end cover 13 and the specific process of realizing sealing and vacuumizing are not the innovations of the present application, so they will not be described here.

[0034] ​In the embodiment, the injection rod 21 comprises an injection punch 211, an intermediate section 212 and a fixed section 213, the injection punch 211 is slidingly arranged in the barrel 12 and in the injection chamber 15 in front of the cavity, the fixed section 213 is outside the barrel 12 and connected with the injection cylinder 22, and the intermediate section 212 is between the injection punch 211 and the fixed section 213. In the injection stroke of the injection rod 21, the intermediate section 212 is dynamically sealed with the sealing end cover 13.

[0035] As shown in Figure 2a and Figure 2b When the injection rod 21 is at the initial position of the injection stroke, the injection punch 211 is on the left side of the sealing end cover 13, when the injection rod 21 is at the terminal position of the maximum injection stroke, the fixed section 213 is on the right side of the sealing end cover 13, and only the intermediate section 212 is in frictional contact with the sealing end cover 13 throughout the injection stroke. The three-section structure of the injection rod 21 and the way of controlling the length of the intermediate section 212 so that the sealing end cover 13 is always in friction with the intermediate section 212 can avoid the joint between the injection punch 211, the intermediate section 212 and the fixed section 213 from rubbing against the sealing end cover 13, thereby improving the service life of the sealing end cover 13 and the injection rod 21, and also being conducive to maintaining the vacuum environment during die casting.

[0036] For example, in a specific embodiment, when the injection stroke is long, the length of the intermediate section 212 is set to be greater than the lengths of the injection punch 211 and the fixed section 213. Accordingly, during the injection process, the sealing end cover 13 will only rub against the intermediate section 212 to maintain a better vacuum environment.

[0037] For another example, in a specific embodiment, the length of the injection punch 211 is L1, the length of the intermediate section 212 is L2, and the length of the fixed section 213 is L3; at the initial position of the injection stroke, the distance between the sealing end cover 13 and the tail end of the fixed section 213 is S0, that is, the distance between the sealing end cover 13 and the injection cylinder 22 is S0; the maximum injection stroke is S1; S0-S1>L3, and L2+L3>S0. Under these parameter relationships, it can always be ensured that only the intermediate section 212 rubs against the sealing end cover 13 during the entire injection stroke.

[0038] Further, in the embodiment, the injection punch 211 is threadedly connected with the intermediate section 212, the fixed section 213 is threadedly connected with the intermediate section 212, and the threads at both ends of the intermediate section 212 are reverse threads. After the die casting system has been in operation for a period of time, if the injection punch 211 and / or the intermediate section 212 need to be replaced due to significant friction, the injection rod 21 with this structure can fix the injection punch 211 and the fixed section 213 at the same time, and then only the intermediate section 212 needs to be rotated, so that the injection punch 211 and the fixed section 213 can be detached from the intermediate section 212, thereby improving the efficiency of maintaining the injection rod 21.

[0039] Further, in the embodiment, the outer surface of the intermediate section 212 of the injection rod 21 is subjected to surface roughening treatment, which can improve the sealing effect when the injection rod 21 cooperates with the sealing end cover 13, and ensure that the die casting system can maintain a preferable vacuum environment during die casting operation.

[0040] In the embodiment, the sealing member 42 is a sealing rubber ring which is shaped to match the sealing groove 16. As shown in Figure 4 , the barrel 12 is of a cylindrical structure, and the side wall thereof is provided with the feeding port 14, and the outer periphery of the feeding port 14 is formed with the stepped sealing groove 16 relative to the barrel wall, and the bottom surface of the sealing groove 16 is flat. When the vacuum melting mechanism 4 is lowered and the discharge port 41 is connected to the feeding port 14, the sealing rubber ring is tightly abutted against the sealing groove 16, and the closed connection of the vacuum melting mechanism 4 and the barrel 12 can be realized.

[0041] In the embodiment, the head plate 11 is formed with the recessed portion 17, and one end portion of the vacuum melting mechanism 4 is arranged in the recessed portion 17. As shown in Figure 1 、 Figure 6a and Figure 6b , the side surface of the head plate 11 which is close to the vacuum melting mechanism 4 is inwardly recessed to form the recessed portion 17, Figure 2a , the left end portion of the vacuum melting mechanism 4 is arranged in the recessed portion 17. Compared with the conventional die casting system, the structure can move the vacuum melting mechanism 4 as a whole to the side of the die of the die casting system, and during the injection operation, the structure of the material striking system such as the injection cylinder 22 is not likely to interfere with the vacuum melting mechanism 4, and the die casting operation can be ensured to be normally performed. Further, as shown in Figure 2a and Figure 2b , the feeding port 14 of the barrel 12 is also arranged at the position of the recessed portion 17 of the head plate 11. Since the vacuum melting mechanism 4 is moved as a whole to the side of the die of the die casting system, the discharge port 41 thereon and the feeding port 14 of the barrel 12 can also be moved to the side of the die, i.e. the flow distance of the material to be die cast into the die is shortened, which is helpful to improve the quality of the die castings.

[0042] In the embodiment, the injection cylinder 22 of the injection mechanism is connected to the bracket 18, and the bracket 18 and the head plate 11 are provided with three connecting rods 19, two of which are symmetrically arranged at the lower portions of the bracket 18 and the head plate 11, and the other one is eccentrically arranged at the upper portions of the bracket 18 and the head plate 11. Please refer to Figure 8 and Figure 9The connecting rods 19 are arranged between the head plate 11 and the bracket 18, and the connecting rods 19 are arranged symmetrically. The connecting rods 19 are arranged on the upper portion of the bracket 18 and the head plate 11, and the two connecting rods 19 on the upper portion are close to each other. The connecting rods 19 are easy to interfere with the vacuum melting mechanism 4 and the lifting mechanism, and the interference of the connecting rods 19 with the vacuum melting mechanism 4 and the lifting mechanism affects the operation of the lifting mechanism. Therefore, in the embodiment, the vacuum melting mechanism 4 and the lifting mechanism are arranged, and only one connecting rod 19 is arranged on the upper portion between the bracket 18 and the head plate 11, and the connecting rod 19 is offset to the side by a preset distance compared with the vertical center line of the bracket 18, so that the connecting rod 19 does not interfere with the vacuum melting mechanism 4 and the lifting mechanism, and the stability of the connection between the bracket 18 and the head plate 11 is maintained.

[0043] In one embodiment, the distance by which the connecting rod 19 is offset to the side compared with the vertical center line of the bracket 18 is D, the width of the bracket 18 is W, the diameter of the mounting bolt of the connecting rod 19 is d, and 2D+d≤W, 1 / 8W≤D≤1 / 6W. In the range, the connecting rod 19 on the upper portion avoids the activity range of the lifting mechanism and the vacuum melting mechanism 4, and the stability of the connection between the bracket 18 and the head plate 11 is ensured.

[0044] In the embodiment, the lifting mechanism includes a driving device 32, a first guide 33, a lifting support 34, a second guide 35, and the mounting plate 31. Please refer to Figure 1 、 Figure 6a and Figure 6b , wherein the driving device 32 is fixedly connected to the head plate 11, and has an output end 36 that can move up and down. When the driving device 32 works, the output end 36 moves up or down. The lifting support 34 is connected to the output end 36 and can move up and down with the output end 36. The first guide 33 is fixed to the head plate 11, and the second guide 35 is fixed to the lifting support 34. The first guide 33 and the second guide 35 are vertically and slidably connected. The mounting plate 31 is fixed to the second guide 35.

[0045] When the output end 36 of the driving device 32 moves up and down, the mounting plate 31 can move up and down through the lifting support 34 and the second guide 35, and the vacuum melting mechanism 4 on the mounting plate 31 can also move up and down. The first guide 33 and the second guide 35 can further limit the movement direction of the vacuum melting mechanism 4, prevent the vacuum melting mechanism 4 from moving in a direction other than up and down or deflecting during use, and affect the sealing between the vacuum melting mechanism 4 and the barrel 12.

[0046] Furthermore, in this embodiment, the driving device 32 is two lifting cylinders respectively arranged on both sides of the vacuum melting mechanism 4; the lifting mechanism includes two sets of symmetrical first guide members 33, second guide members 35 and mounting plates 31. Figure 1 、 Figure 6a and Figure 6b As shown, a first guide member 33, a second guide member 35, a mounting plate 31, and a lifting cylinder are respectively positioned above the left and right sides of the vacuum melting mechanism 4. This structure ensures horizontal balance on both sides of the vacuum melting mechanism 4 when the two lifting cylinders operate synchronously, driving the vacuum melting mechanism 4 to move strictly in the vertical direction, ensuring a good seal between it and the barrel 12 during die-casting operations. In specific applications, the lifting cylinders can be devices capable of extending and retracting in one direction, such as pneumatic cylinders, hydraulic cylinders, and electric telescopic cylinders.

[0047] Furthermore, in this embodiment, Figure 1 、 Figure 6a and Figure 6b As shown, the second guide member 35 is a plate member having a groove 37, and the first guide member 33 is a plate member with one end extending into the groove 37. The two can only slide relative to each other in the vertical direction, and the plate and the groove are in surface contact, which makes the relative sliding more stable, ensuring that the vacuum melting mechanism 4 can move smoothly and maintain a good seal with the barrel 12.

[0048] In other embodiments, the first guide member 33 may be a plate member with a groove, and the second guide member 35 may be a plate member with one end extending into the groove. Alternatively, other structural members capable of vertical guidance, such as a collar sliding up and down along a rod or a slider sliding up and down along a slot, can be used to achieve the aforementioned function of causing the vacuum melting mechanism to move strictly downward.

[0049] In this embodiment, the two lifting cylinders in the lifting mechanism are located above and on either side of the vacuum melting mechanism 4. The lifting bracket 34 is located above the lifting cylinders. The first guide member 33, the second guide member 35, and the mounting plate 31 are located between the vacuum melting mechanism 4 and the lifting bracket 34. This structural form does not affect other structures in the die-casting system, ensuring the smooth operation of the die-casting system.

[0050] In the amorphous alloy vacuum melting and die casting system in the embodiment, when realizing the amorphous alloy die casting operation, in order to maintain the basic vacuum operation environment and ensure that the parts near the barrel 12 are easy to maintain and replace, a vacuum melting mechanism 4 capable of moving up and down is arranged, so that the vacuum melting mechanism 4 and the barrel 12 are not integrated, and there is a connecting gap between them. In order to ensure the airtightness between them during die casting, a sealing groove 16 is arranged at the feeding port 14 of the barrel 12, and cooperates with the sealing element 42 on the discharging port 41 of the vacuum melting mechanism 4, so as to ensure that the airtightness between them can be maintained during the die casting operation. In addition, the structure of the injection rod 21 is improved, and the sealing end cover 13 only slides with the middle section 212 of the injection rod 21, avoiding the joint of the injection rod 21 and the sealing end cover 13 to reduce the sealing performance. Under the joint action of the above technical features, it can be ensured that the vacuum or high vacuum environment provided by the vacuum melting mechanism 4 can be maintained for a long time during the die casting operation, and finally the amorphous alloy die casting part with good quality can be die cast.

[0051] It will be obvious to a person skilled in the art that, in its broadest form, the application is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. An amorphous alloy vacuum melting and die-casting system, characterized in that: include: The die-casting mechanism has a head plate provided with a barrel connected to the die cavity of the die-casting die, and a sealing end cover provided on the outer end surface of the barrel; An injection mechanism, wherein one end of the injection rod is sealingly slidably disposed in the barrel, and a sealing groove is formed on the outer periphery of the feed port of the barrel; the injection rod comprises an injection punch, an intermediate section and a fixed section, the injection punch being slidably disposed in the barrel and in the pressure chamber in front of the die cavity, the fixed section being outside the barrel and connected to the injection cylinder, and the intermediate section being between the injection punch and the fixed section; wherein, during the injection stroke of the injection rod, the intermediate section is dynamically sealed with the sealing end cover; the injection punch is threadedly connected to the intermediate section, the fixed section is threadedly connected to the intermediate section, and the threads at both ends of the intermediate section are reversed; a lifting mechanism, fixed to the head plate, having a mounting plate capable of moving up and down; A vacuum melting mechanism is provided on the mounting plate, wherein the discharge port of the melting chamber is opposite to the feed port of the barrel, and a sealing member is provided on the discharge port and is opposite to the sealing groove; When the mounting plate moves downward to a preset position, the sealing member abuts against the sealing groove, and a closed space is formed between the mold cavity, the barrel and the smelting chamber.

2. The amorphous alloy vacuum melting and die-casting system according to claim 1, characterized in that: The outer surface of the middle section is roughened.

3. The amorphous alloy vacuum melting and die-casting system according to claim 1, characterized in that: The sealing member is a sealing rubber ring whose shape matches the sealing groove.

4. The amorphous alloy vacuum melting and die-casting system according to claim 1, characterized in that: A recessed portion is formed on the head plate, and one end portion of the vacuum melting mechanism is disposed in the recessed portion; and the feed port of the barrel is disposed at the position of the recessed portion.

5. The amorphous alloy vacuum melting and die-casting system according to claim 1, characterized in that: The injection cylinder of the injection mechanism is connected to the standing plate, and three connecting rods are provided between the standing plate and the head plate, two of which are symmetrically arranged at the lower parts of the standing plate and the head plate, and the other connecting rod is eccentrically arranged at the upper parts of the standing plate and the head plate.

6. The amorphous alloy vacuum melting and die-casting system according to any one of claims 1 to 5, characterized in that: The lifting mechanism comprises: A driving device, fixed to the head plate, having an output end capable of moving up and down; a first guide member fixed to the head plate; a lifting bracket connected to the output end; A second guide member is fixed on the lifting bracket and is vertically slidably connected to the first guide member; Wherein, the mounting plate is fixed on the second guide member.

7. The amorphous alloy vacuum melting and die-casting system according to claim 6, characterized in that: The driving device is two lifting cylinders respectively arranged on both sides of the vacuum melting mechanism; The lifting mechanism includes two groups of symmetrical first guide members, second guide members and a mounting plate.

8. The amorphous alloy vacuum melting and die-casting system according to claim 7, characterized in that: The second guide member is a plate member having a groove, and the first guide member is a plate member with one end extending into the groove; or The first guide member is a plate member having a groove, and the second guide member is a plate member with one end extending into the groove.

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