Three-dimensional liquid leakage prevention structure of die-casting machine

Abstract

The utility model is suitable for the technical field of die-casting machines, and provides a die-casting machine three-dimensional liquid leakage prevention structure which comprises an injection cylinder body, and an injection cavity is formed in the injection cylinder body. A sealing structure is arranged on the end side of the injection cylinder body; the sealing structure comprises an installation groove formed in the end side of the injection cylinder body, an installation disc is arranged in the installation groove, and a plurality of reset springs and sealing rings are annularly distributed on the edge of the inner side of the installation disc. The high-pressure sealing design effectively prevents liquid leakage, prolongs the service life of the assembly, and reduces the abrasion of a metal contact surface through the elastic characteristic of the sealing gasket; meanwhile, the double-sealing structure can capture and guide out leaked liquid in time when external sealing leaks, larger risks caused by liquid accumulation are avoided, the time needed by cleaning and maintaining is remarkably shortened, and therefore the continuity and stability of the production process are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to die casting machine technical field especially relates to die casting machine three -dimensional leakproof structure. BACKGROUND

[0002] In the metal processing industry, die casting machine as a kind of key manufacturing equipment, is widely used in the field such as automobile, aerospace, electronics, for producing high-precision, high-quality metal parts, however, traditional die casting machine in the process of high-pressure injection of liquid metal, face serious leakage problem leakage not only leads to the waste of metal material, more importantly, it can cause equipment failure, even to operating personnel constitutes security risk;

[0003] Traditional sealing mode often relies on single sealing gasket or sealing ring, these structures are prone to deformation, wear or aging in the harsh environment of high pressure, high temperature, high frequency movement, thereby leading to sealing failure;

[0004] In addition, even if sealing structure is temporarily effective, once leakage occurs, leakage liquid often directly flows into other components of die casting machine, causes more extensive damage, even causes the overall shutdown of production line. INNOVATION CONTENT

[0005] The utility model provides die casting machine three -dimensional leakproof structure, aims at solving the problem that traditional sealing mode is easy to deform, wear, aging in the harsh environment of high pressure, high temperature, high frequency movement, leads to sealing failure, and leakage liquid directly flows into other components of die casting machine, causes extensive damage, even causes the overall shutdown of production line.

[0006] The utility model is such realization, die casting machine three -dimensional leakproof structure, including injection cylinder body, the injection cylinder body is opened in and has injection cavity;The piston is slidably fitted in the injection cavity;The end side of injection cylinder body is provided with sealing structure;Wherein, the sealing structure includes: the installation recess that is arranged in the end side of injection cylinder body, the internal thread groove is arranged in the installation recess;The mounting disc is arranged in the installation recess, and the outer surface of the mounting disc is provided with external thread groove;The mounting disc and installation recess are threadedly cooperated through internal thread groove and external thread groove;The edge position of the inner side of mounting disc is annularly distributed with several reset springs, and the damper is arranged in the reset spring;The side of several reset springs away from mounting disc is provided with sealing ring, and the middle position of sealing ring is provided with the reserved through slot for the piston to penetrate.

[0007] Preferably, the side edge position of the injection cylinder body adjacent mounting disc is provided with fixed ring, the concave groove ring lower than the horizontal height of the fixed ring is arranged in the fixed ring, and a plurality of liquid collecting holes are formed in the groove ring.

[0008] Preferably, the bottom of the injection cylinder body is provided with a mounting conduit extending to the inside of the injection cavity and connected with the liquid collecting holes.

[0009] Preferably, a one-way valve is arranged on the mounting conduit.

[0010] Preferably, a liquid level sensor is arranged in the groove ring, and the liquid level sensor is electrically connected with the one-way valve.

[0011] Preferably, the outer diameter of the piston is consistent with the inner diameter of the sealing ring.

[0012] Preferably, the contact surface of the mounting groove and the mounting disc is provided with a sealing gasket.

[0013] Preferably, the rotation ratio of the inner threaded groove is consistent with the rotation ratio of the outer threaded groove.

[0014] Compared with the prior art, the embodiment of the application has the following beneficial effects:

[0015] Firstly, the device realizes high-pressure sealing of liquid metal, effectively prevents leakage of the liquid, and the sealing gasket, with excellent elastic properties, not only forms a continuous sealing barrier, but also effectively absorbs friction and impact generated by the movement of the piston, significantly reducing the wear of the metal contact surface, thereby prolonging the service life of the assembly. In addition, the setting of the return spring and the sealing ring further improves the stability and durability of the sealing structure, ensuring good sealing performance of the equipment in long-term operation.

[0016] Secondly, by setting a double sealing structure, when the external sealing structure leaks, the leaked liquid is first captured by the concave groove ring, avoiding potential damage to other parts of the die casting machine. With the accumulation of the leaked liquid, it will be smoothly guided out through the liquid collecting holes on the groove ring, avoiding the risk of greater leakage caused by liquid accumulation. This design not only significantly reduces the time lost due to cleaning during shutdown, but also ensures the continuity and stability of the production process, improving the overall operating efficiency of the die casting machine. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 3 is a schematic diagram of the front cross-sectional structure of the utility model;

[0020] Figure 4 is a schematic diagram of the front cross-sectional structure of the utility model;

[0021] Figure 5 is a side structure schematic view of the utility model;

[0022] Figure 6 is a front structure schematic view of the utility model;

[0023] In the figure: 1, injection cylinder body;2, piston;3, installation groove;4, mounting disc;5, reset spring;6, sealing ring;7, reserved through slot;8, fixed ring;9, liquid collecting hole;10, installation guide pipe;11, check valve;12, sealing gasket;13, liquid level sensor. DETAILED DESCRIPTION

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the description and claims of this application as well as the above abstract are intended to cover all alternatives, modifications, equivalents and variations thereof falling within the scope of the application. Throughout this application, the term "comprising" or "having" or any variation thereof is used in the sense of "including", and should not be interpreted in the sense of "consisting only of" or "consisting exclusively of". The terms "first", "second", and the like, as used herein do not have their ordinary meaning but are used only to distinguish one element from another.

[0025] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combined with other embodiments.

[0026] The utility model embodiment provides a die casting machine three -dimensional leakproof structure, as Figures 1-6 As shown in the figure, including injection cylinder body 1, the injection cylinder body 1 is opened in and has injection cavity;The piston 2 is slidably fitted in the injection cavity;The end side of the injection cylinder body 1 is provided with sealing structure;Wherein, the sealing structure includes: the installation groove 3 of the end side of the injection cylinder body 1, the inner thread groove is arranged in the installation groove 3;The mounting disc 4 is arranged in the installation groove 3, and the outer surface of the mounting disc 4 is provided with an outer thread groove;The mounting disc 4 and installation groove 3 are threadedly connected through the inner thread groove and the outer thread groove;The edge position of the inner side of the mounting disc 4 is annularly distributed with a plurality of reset springs 5, and the reset spring 5 is provided with a damper in the reset spring 5;The sealing ring 6 is sleeved on the side of a plurality of reset springs 5 away from the mounting disc 4, and the middle position of the sealing ring 6 is provided with the reserved through slot 7 for the piston 2 to pass through.

[0027] It should be noted that, due to the traditional sealing mode is easy to deform, wear and tear, aging in the harsh environment of high pressure, high temperature, high frequency movement, leading to sealing failure, and the leakage of liquid will directly flow into the other parts of the die casting machine, causing widespread damage, even lead to the production line stop problem, the scheme through the realization of high pressure sealing of liquid metal and double protection mechanism, significantly improve the running efficiency and stability of the die casting machine; on the one hand, it uses the elastic properties of the sealing gasket 12 and the setting of the reset spring 5 and the sealing ring 6, ensures the long-term stability and durability of the sealing structure, effectively prevents the leakage of liquid, reduces the wear of the metal contact surface, thereby prolongs the service life of the assembly; on the other hand, the design of double sealing structure can capture and export the leakage liquid in time when the external sealing appears leakage, avoid the greater risk caused by liquid accumulation, significantly reduce the time loss due to cleaning and ensure the continuity and efficiency of the production process; therefore, this device provides all-round sealing protection for the die casting machine, which not only ensures the production safety, but also improves the overall operation efficiency.

[0028] Specifically, in the present embodiment, the present scheme mainly includes a shot sleeve body 1, in the operation process of the die casting machine, the shot cavity inside the shot sleeve body 1 is the main space for the compression and injection of liquid metal; the piston 2 slides in the shot cavity, used to push the liquid metal into the mold; in order to ensure that the liquid metal does not leak from the gap between the shot sleeve body 1 and the piston 2 under high pressure, a sealing structure is specially designed;

[0029] The sealing structure is mainly composed of a mounting disc 4, a reset spring 5, a damper and a sealing ring 6; the mounting disc 4 is threadedly connected with the inner threaded groove in the mounting groove 3 on the end side of the shot sleeve body 1 through the outer threaded groove on the outer surface of the mounting disc 4, which not only facilitates installation and removal, but also ensures the tight connection between the mounting disc 4 and the shot sleeve body 1;

[0030] On the edge position of the inner side of the mounting disc 4, there are a plurality of reset springs 5 distributed in a ring shape; these reset springs 5 can provide certain elastic support when subjected to the pressure generated by the movement of the piston 2, so that the sealing ring 6 can tightly fit around the piston 2 to prevent the leakage of liquid metal; at the same time, the reset spring 5 is also provided with a damper, which can further reduce the impact and vibration when the piston 2 moves, thereby enhancing the stability and durability of the sealing structure;

[0031] The sealing ring 6 is sleeved on the side of the reset spring 5 away from the mounting disc 4, and a reserved through groove 7 is formed in the middle position thereof, so that the piston 2 can smoothly penetrate; the sealing ring 6 is made of elastic material with high temperature resistance and wear resistance to ensure that it can still maintain good sealing effect under high pressure and high temperature conditions.

[0032] In further preferred embodiments of the present application, as Figure 2As shown, the fixed ring 8 is provided with a concave groove ring lower than its horizontal height, and a plurality of liquid collecting holes 9 are formed on the groove ring.

[0033] In this embodiment, when the die casting machine is in working condition, the piston 2 reciprocates in the injection cavity of the injection cylinder body 1 to push the liquid metal for injection. If there is leakage in the external sealing structure, the potential leakage liquid is first captured by the concave groove ring. Since the horizontal height of the groove ring is lower than that of the fixed ring 8, the leakage liquid will not directly overflow to the outside of the injection cylinder body 1, but will be confined inside the groove ring. This design not only reduces the potential damage of the leakage liquid to other parts of the die casting machine, but also reduces the difficulty of cleaning and maintenance.

[0034] With the continuous accumulation of leakage liquid, they will be guided out through the plurality of liquid collecting holes 9 formed on the groove ring. The design of these liquid collecting holes 9 ensures that the leakage liquid can flow out smoothly, avoiding the risk of greater leakage caused by liquid accumulation.

[0035] In further preferred embodiments of the present application, as shown in Figure 2 The bottom of the injection cylinder body 1 is provided with a mounting conduit 10, which extends to the inside of the injection cavity and is in communication with the plurality of liquid collecting holes 9.

[0036] In this embodiment, by providing the mounting conduit 10 at the bottom of the injection cylinder body 1 and effectively connecting it with the liquid collecting holes 9 and the inside of the injection cavity, it is ensured that any leakage liquid or excess liquid that may be generated during the injection process can be quickly and effectively collected and guided out. The key of this design is to prevent the leakage liquid from staying and accumulating in the injection cavity, because such accumulation may seriously affect the quality of the die casting and the normal operation of the injection cylinder.

[0037] More importantly, this arrangement of the mounting conduit 10 also allows the excess liquid to be quickly guided out, thereby significantly reducing the time lost for cleaning due to shutdown. This improvement not only improves the overall operating efficiency of the die casting machine, but also ensures the continuity and stability of the production process.

[0038] In further preferred embodiments of the present application, as shown in Figure 5 The mounting conduit 10 is provided with a one-way valve 11.

[0039] In the embodiment, when the injection cylinder is working, if there is a slight leakage in the sealing structure or excess liquid is generated in the injection cavity, the liquid can be captured by the concave groove ring and flow into the mounting conduit 10 through the liquid collecting hole 9, at this time, the one-way valve 11 is in an open state, allowing the liquid to flow out smoothly and be introduced into an external collecting device, which ensures that the injection cavity does not accumulate excess liquid, thereby avoiding the risk of damaging the quality of the die casting and the abnormal working of the injection cylinder.

[0040] As shown in the further preferred embodiment of the utility model, Figure 5 The liquid level sensor 13 is electrically connected with the one-way valve 11.

[0041] In the embodiment, when the injection cylinder is working, the liquid level sensor 13 (KUS550A) starts to monitor the liquid level change of the liquid collecting hole 9 in the groove ring in real time, and once the liquid level sensor 13 detects that the liquid level exceeds the preset safety threshold, the one-way valve 11 is opened to allow the liquid in the liquid collecting hole 9 to flow out through the mounting conduit 10.

[0042] As shown in the further preferred embodiment of the utility model, Figure 3 The outer diameter size of the piston 2 is consistent with the inner diameter size of the sealing ring 6.

[0043] In the embodiment, due to the precise fit of the piston 2 and the sealing ring 6, the liquid in the injection cavity will not leak out under high pressure through the gap, which ensures the stable supply of liquid during the die casting process and the high quality of the die casting.

[0044] As shown in the further preferred embodiment of the utility model, Figures 3-4 The contact surface between the mounting groove 3 and the mounting disc 4 is provided with a sealing gasket 12.

[0045] In the embodiment, when the mounting disc 4 is fixed on the mounting groove 3, the sealing gasket 12 is compressed, and its elastic property enables it to tightly fit on the contact surface to form a continuous sealing band, and the sealing gasket 12 can also absorb the friction and impact generated between the mounting disc 4 and the mounting groove 3 due to movement, which helps to reduce the wear of the metal contact surface and prolong the service life of the assembly, and the tight fit and elastic property of the sealing gasket 12 ensure the stable connection between the mounting groove 3 and the mounting disc 4, which is crucial for maintaining the normal operation of the die casting machine and ensuring the product quality.

[0046] As shown in the further preferred embodiment of the utility model, Figures 3-4 The winding ratio of the internal thread groove is consistent with the winding ratio of the external thread groove.

[0047] In this embodiment, by setting a consistent screwing ratio helps to enhance the sealing performance of the threaded connection, during the tightening process, the inner and outer threads can be uniform, close together, to prevent liquid leakage.

[0048] Working principle: In the operation mechanism of the die casting machine, the injection cavity inside the injection cylinder body 1 is the space where the liquid metal is compressed and injected into the mold; the piston 2 slides flexibly in the injection cavity, bearing the heavy responsibility of pushing the liquid metal into the mold; however, in order to ensure that the liquid metal does not leak from the small gap between the injection cylinder body 1 and the piston 2 under high pressure during this process, a sealing structure is specially designed;

[0049] The sealing structure includes a mounting disc 4, a return spring 5, a damper and a sealing ring 6; the mounting disc 4 is matched with the inner thread groove in the mounting groove 3 on the end side of the injection cylinder body 1 through the outer thread groove on its outer surface; the consistent screwing ratio design of the inner and outer thread grooves can achieve uniform and close fitting during the tightening process, effectively preventing liquid leakage; this design not only simplifies the installation and disassembly process, but also ensures the tight connection between the mounting disc 4 and the injection cylinder body 1;

[0050] When the mounting disc 4 is firmly fixed on the mounting groove 3, the sealing gasket 12 is moderately compressed and tightly adheres to the contact surface due to its excellent elastic properties, forming a continuous sealing barrier; in addition, the sealing gasket 12 can effectively absorb the friction and impact generated by the movement of the piston 2, significantly reducing the wear of the metal contact surface, thereby greatly extending the service life of the assembly;

[0051] There are several return springs 5 distributed in a ring shape on the inner side edge of the mounting disc 4; the return springs 5 provide the necessary elastic support under the pressure generated by the movement of the piston 2, ensuring that the sealing ring 6 can always tightly adhere to the piston 2, effectively preventing the leakage of liquid metal; at the same time, the damper is built into the return spring 5, which further weakens the impact and vibration when the piston 2 moves, significantly improving the stability and durability of the sealing structure; the sealing ring 6 is sleeved on the side of the return spring 5 away from the mounting disc 4; the reserved through groove 7 in the middle ensures that the piston 2 can pass through it freely;

[0052] In order to further improve the sealing performance, when the external sealing structure leaks, these potential leakage liquids will be captured by the concave groove ring first; the design of the groove ring with a horizontal height lower than the fixed ring 8 tightly restricts the leakage liquid inside the groove ring, not only avoiding potential damage to other parts of the die casting machine, but also greatly reducing the difficulty of cleaning and maintenance;

[0053] With the continuous accumulation of the leakage liquid, the liquid is smoothly guided out through a plurality of liquid collecting holes 9 on the groove ring; the design of these liquid collecting holes 9 ensures that the leakage liquid can flow out unobstructed, thereby effectively avoiding the risk of greater leakage caused by liquid accumulation; the installation guide pipe 10 arranged at the bottom of the injection cylinder is in communication with the groove ring, and also ensures that any leakage liquid or excess liquid that may be generated during the injection process can be quickly and effectively collected and guided out; effectively preventing the leakage liquid from remaining and accumulating in the injection cavity, thereby avoiding the potential impact of the accumulated liquid on the quality of the die casting and the normal operation of the injection cylinder, thereby significantly reducing the time lost due to shutdown for cleaning;

[0054] During the operation of the die casting machine, the liquid level sensor 13 monitors the liquid level change of the liquid collecting hole 9 in the groove ring in real time, and once it is detected that the liquid level exceeds the preset safety threshold, the opening mechanism of the one-way valve 11 will be triggered immediately to allow the liquid in the liquid collecting hole 9 to flow out smoothly through the installation guide pipe 10.

[0055] It should be noted that for the foregoing embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the order of the described actions, because according to the present application, certain steps can be performed in other order or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily necessary for the present application.

[0056] In several embodiments provided by the present application, it should be understood that the disclosed device can be implemented by other means. For example, the device embodiments described above are only illustrative, for example, the division of the above units, actual implementation can have another division way, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the coupling or communication connection between the displayed or discussed each other can be through some interface, indirect coupling or communication connection between devices or units, which can be electrical or other forms.

[0057] The units described as separate components above can or can not be physically separated, and the components shown as units can or can not be physical units, that is, they can be located in one place, or they can be distributed on multiple network units. According to actual needs, part or all of the units can be selected to achieve the purpose of the embodiment scheme.

[0058] The above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the protection scope of the present application. Obviously, the described examples are only some of the embodiments of the present application, not all the embodiments. Based on these examples, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application. Although the present application has been described in detail with reference to the above examples, those of ordinary skill in the art can still combine, add or delete the features in the embodiments of the present application according to the circumstances without creative labor, so as to obtain different other technical solutions which do not deviate from the concept of the present application in essence, and these technical solutions also fall within the scope of the present application.

Claims

1. A three-dimensional liquid leakage prevention structure of a die casting machine, characterized by, The utility model relates to a pressure injection cylinder body (1) is provided with pressure injection cavity in it, and the piston (2) is slidably matched in the pressure injection cavity, and the end side of pressure injection cylinder body (1) is provided with sealing structure, and the sealing structure includes installation recess (3) that is arranged in the end side of pressure injection cylinder body (1), and the inner thread groove is arranged in installation recess (3), and installation disc (4) is arranged in installation recess (3), and the outer surface of installation disc (4) is provided with outer thread groove, and installation disc (4) and installation recess (3) are screwed through the inner thread groove and outer thread groove, and the edge position annular distribution of installation disc (4) inner side is provided with a plurality of reset springs (5), and the damper is arranged in reset spring (5), and the side of a plurality of reset springs (5) away from installation disc (4) is provided with sealing ring (6), and the middle part position of sealing ring (6) is provided with the reserved through slot (7) for piston (2) to penetrate. The side edge position of pressure injection cylinder body adjacent installation disc (4) is provided with fixed ring (8), and the concave groove ring lower than the horizontal height of fixed ring (8) is arranged in fixed ring (8), and a plurality of liquid collecting holes (9) are arranged on the groove ring. The bottom position of pressure injection cylinder body (1) is provided with installation guide pipe (10), and installation guide pipe (10) extends to the inside position of pressure injection cavity and is communicated with a plurality of liquid collecting holes (9). The one-way valve (11) is arranged on installation guide pipe (10). The liquid level sensor (13) is arranged in the groove ring, and the liquid level sensor (13) and the one-way valve (11) are electrically connected. The outer diameter size of piston (2) is consistent with the inner diameter size of sealing ring (6). The contact surface of installation recess (3) and installation disc (4) is provided with sealing gasket (12). The winding ratio of the inner thread groove is consistent with the winding ratio of the outer thread groove. ​ 2. The leak-proof structure of the die casting machine in three dimensions according to claim 1, characterized in that, ​ 3. The three-dimensional liquid leakage preventing structure of the die casting machine according to claim 2, wherein ​ 4. The leak-proof structure of the die casting machine according to claim 3, wherein ​ 5. The three-dimensional liquid leakage preventing structure of the die casting machine according to claim 4, wherein ​ 6. The leak-proof structure of the die casting machine in three dimensions according to claim 1, wherein, ​ 7. The leak-proof structure of the die casting machine in three dimensions according to claim 2, wherein, ​ 8. The leak-proof structure of the die casting machine in three dimensions according to claim 1, wherein, ​

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