Pouring system and pouring method for high-speed magnetic levitation positioning mark plate

Abstract

The invention discloses a pouring system and a pouring method for a high-speed magnetic levitation positioning mark plate, and relates to the technical field of pouring processes. In the pouring system, a vacuum mixing tank is located on the outer side of a vacuum tank, and a pouring mold is located in an inner cavity of the vacuum tank; the vacuumizing device is connected to the vacuum tank and can directly vacuumize an inner cavity of the vacuum tank and vacuumize the pouring mold through the discharging pipe. A feeding port of the pouring mold is connected with the vacuum mixing tank through a feeding pipe, a discharging port of the pouring mold is connected with an inner cavity of the vacuum tank through a discharging pipe, and the discharging port is higher than the feeding port so that materials can be fed into a cavity of the pouring mold from bottom to top. The vacuumizing device can pump out air in the cavity of the pouring mold, so that the air in the cavity is exhausted more thoroughly; the material is fed from bottom to top in the cavity, so that the material entering the cavity can press the material currently entering the cavity by virtue of the weight of the material, air in the material is removed, and the efficiency and the quality of a pouring process can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of casting technology, and in particular to a casting system and a casting method for a high-speed magnetic floating positioning mark plate. Background Art

[0002] High-speed maglev trains can reach speeds of 600 kilometers per hour, filling the gap in travel speed between aviation and high-speed rail passenger transport, and have great technical and economic significance for improving my country's three-dimensional high-speed passenger transportation network. High-speed maglev vehicle sensors are the core components of the high-speed maglev transportation system. Research on the core components of high-speed maglev vehicles is crucial to improving the performance of maglev vehicles.

[0003] High-speed maglev positioning marker is an important component used to detect the performance of high-speed maglev vehicle sensors. Figure 1 As shown in the figure, the high-speed magnetic levitation positioning mark plate includes a positioning mark plate substrate as an intermediate plate, on which a coding narrow slit representing position information is left according to certain rules, and the substrate is copper-clad, and the outer layer is an insulating material layer formed by pouring epoxy resin on the outside of the base layer. Figure 2 As shown, in the traditional pouring method, the pouring mold is placed in a vacuum tank, the vacuum tank is evacuated, and the material (epoxy resin) is poured into the mold cavity from the top of the pouring mold. However, during the pouring process, the epoxy resin is easily introduced with air, resulting in insufficient pouring, and thus a low yield problem.

[0004] Therefore, how to improve the quality of the casting process of high-speed magnetic levitation positioning mark plates is a technical problem that technical personnel in this field currently need to solve. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a casting system and a casting method for a high-speed magnetic levitation positioning mark plate, which can improve the quality of the casting process of the high-speed magnetic levitation positioning mark plate.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A casting system for a high-speed magnetic levitation positioning mark plate comprises a vacuum mixing tank, a vacuum pumping device, a vacuum tank and a casting mold; the vacuum mixing tank is located outside the vacuum tank, and the casting mold is located in the inner cavity of the vacuum tank; the vacuum pumping device is connected to the vacuum tank, and can directly evacuate the inner cavity of the vacuum tank, and can evacuate the casting mold through the discharge pipe; the feed port of the casting mold is connected to the vacuum mixing tank through the feed pipe, and the discharge port is connected to the inner cavity of the vacuum tank through the discharge pipe, and the discharge port is higher than the feed port, so that the cavity of the casting mold can be fed from bottom to top, wherein the cavity of the casting mold can accommodate the substrate of the high-speed magnetic levitation positioning mark plate, and the material provided by the vacuum mixing tank is used for casting on the outside of the substrate.

[0008] Preferably, the casting mold and the cavity therein are arranged obliquely in the vacuum tank; wherein, the first angular structure on a diagonal of the casting mold is located at the bottom of the casting mold, the second angular structure is located at the top of the casting mold, the feed port is arranged on the first angular structure, and the discharge port is arranged on the second angular structure.

[0009] Preferably, the projection figure of the casting mold in the first direction has four vertex angles, and two opposite vertex angles on a diagonal line are projection figures corresponding to the first angular structure and the second angular structure, respectively.

[0010] Preferably, a support frame is further provided in the inner cavity of the vacuum tank to support the casting mold obliquely disposed in the inner cavity of the vacuum tank; a side surface of the casting mold parallel to the first direction is obliquely pressed on the support frame.

[0011] Preferably, a plurality of the casting molds are arranged in the vacuum tank, and the cavities of the casting molds are connected in series or in parallel.

[0012] Preferably, it also includes a fixture for clamping and solidifying the high-speed magnetic levitation positioning mark plate after casting.

[0013] Preferably, at least one of the vacuum mixing tank, the feeding pipe and the vacuum tank is provided with a heating system having a heating function.

[0014] A method for casting a high-speed magnetic levitation positioning sign plate, applied to the above casting system; the casting method comprises a casting step;

[0015] The pouring step comprises:

[0016] The vacuum device is controlled to perform vacuum operation on the vacuum tank, and the vacuum mixing tank is controlled to supply material to the cavity of the casting mold, wherein the material in the vacuum mixing tank enters the cavity from bottom to top to obtain a cast high-speed magnetic levitation positioning mark plate.

[0017] Preferably, the pouring step further comprises:

[0018] In the process of the material in the vacuum mixing tank entering the cavity from bottom to top, when the material overflows from the casting mold to the discharge pipe:

[0019] Maintain the feeding operation of the vacuum mixing tank, and at the same time, disconnect the vacuum pumping device from the vacuum tank for a set time and / or a set number of times, then stop the feeding operation of the vacuum mixing tank and the vacuum pumping device from the vacuum tank to obtain a cast high-speed magnetic levitation positioning mark plate.

[0020] Preferably, after the pouring step, a curing step is also included;

[0021] The curing step comprises:

[0022] Performing primary curing on the high-speed magnetic levitation positioning sign plate cast in the casting mold;

[0023] Opening the casting mold and cleaning the demoulding high-speed magnetic levitation positioning sign plate;

[0024] The high-speed magnetic levitation positioning mark plate is clamped and fixed by a clamp, and the high-speed magnetic levitation positioning mark plate is reinforced for the second time.

[0025] The pouring system of the high-speed magnetic levitation positioning mark plate provided by the present invention comprises a vacuum mixing tank, a vacuum pumping device, a vacuum tank and a pouring mold; the vacuum mixing tank is located outside the vacuum tank, and the pouring mold is located in the inner cavity of the vacuum tank; the vacuum pumping device is connected to the vacuum tank, and can directly evacuate the inner cavity of the vacuum tank, and can evacuate the pouring mold through a discharge pipe; the feed port of the pouring mold is connected to the vacuum mixing tank through the feed pipe, and the discharge port is connected to the inner cavity of the vacuum tank through the discharge pipe, and the discharge port is higher than the feed port, so that the cavity of the pouring mold can be fed from bottom to top, wherein the cavity of the pouring mold can accommodate the substrate of the high-speed magnetic levitation positioning mark plate, and the material provided by the vacuum mixing tank is used for pouring on the outside of the substrate.

[0026] The vacuum device can evacuate the vacuum tank. Since the vacuum tank is connected to the discharge pipe, the air in the cavity of the casting mold can be directly extracted through the vacuum tank and the discharge pipe in sequence, which can make the air in the cavity be discharged more thoroughly. In addition, if the cavity is fed from bottom to top, the material entering the cavity can also use its own weight to compact the material currently entering the cavity, which can effectively remove the air in the material. The vacuum operation in the cavity can also provide assistance for the material to enter the cavity, which can improve the efficiency and quality of the casting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of a substrate in a high-speed magnetic levitation positioning sign board;

[0029] Figure 2 It is a schematic diagram of a pouring system for a sign board in the prior art;

[0030] Figure 3 It is a structural schematic diagram of a specific embodiment 1 of the pouring system provided by the present invention;

[0031] Figure 4 for Figure 3 Left side view;

[0032] Figure 5 for Figure 4 A partial schematic diagram of the casting mold, wherein the dotted line is an internal schematic diagram of the casting mold;

[0033] Figure 6 A schematic diagram of the positional relationship between a clamp and a clamping plate of a specific embodiment 1 of the pouring system provided by the present invention;

[0034] Figure 7 A schematic diagram of the connection between the fixture and the marking plate of the pouring system of the present invention.

[0035] Reference numerals:

[0036] Vacuum mixing tank 01, vacuum pipe 021, vacuum tank 03, casting mold 04, feeding pipe 07;

[0037] Vacuum mixing tank 1;

[0038] Vacuuming device 2, vacuuming tube 21;

[0039] Vacuum tank 3, support frame 31, first sealing port 32, second sealing port 33, air extraction port 34;

[0040] Casting mold 4, feed port 41, discharge port 42, mold cavity 43, first angular structure 44, second angular structure 45;

[0041] Clamp 5, clamp plate 51;

[0042] Feed pipe 6;

[0043] Discharge pipe 7;

[0044] Base plate 8, encoding slit 81;

[0045] High-speed magnetic levitation positioning sign board 9;

[0046] The first direction X. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] The core of the present invention is to provide a casting system and a casting method for a high-speed magnetic levitation positioning mark plate, which can improve the quality of the casting process of the high-speed magnetic levitation positioning mark plate.

[0049] A specific embodiment 1 of the pouring system for the high-speed maglev positioning mark plate provided by the present invention is applied to a high-speed maglev train manufacturing platform to realize the pouring of epoxy resin products in the high-speed maglev positioning mark plate.

[0050] Please refer to Figures 3 to 7 The pouring system includes a vacuum mixing tank 1, a vacuum pumping device 2, a vacuum tank 3 and a pouring mold 4.

[0051] The material supplied in the vacuum mixing tank 1 is used to form the outer insulating material layer of the substrate 8 of the high-speed magnetic floating positioning sign plate 9 (hereinafter referred to as the sign plate), which can be epoxy resin. The top of the vacuum mixing tank 1 can be evacuated before the pouring operation or at an appropriate time (usually not from the side of the vacuum tank 3), and the middle shaft of the vacuum mixing tank 1 is a stirring shaft, which can stir the material.

[0052] The vacuum tank 3 can provide a vacuum environment for the casting mold 4. The vacuum mixing tank 1 is located outside the vacuum tank 3, and the casting mold 4 is located in the inner cavity of the vacuum tank 3.

[0053] The vacuum device 2 is connected to the vacuum tank 3, and can directly vacuum the inner cavity of the vacuum tank 3, and can vacuum the casting mold 4 through the discharge pipe 7. Specifically, the vacuum device 2 is connected to the vacuum tank 3 through the vacuum pipe 21, and the vacuum pipe 21 vacuumizes through the vacuum pipe 21.

[0054] The feed port 41 of the casting mold 4 is connected to the vacuum mixing tank 1 through the feed pipe 6, and the discharge port 42 is connected to the inner cavity of the vacuum tank 3 through the discharge pipe 7. The discharge port 42 is higher than the feed port 41, so that the material is fed from bottom to top in the cavity 43 of the casting mold 4. The cavity 43 of the casting mold 4 can accommodate the substrate 8 of the high-speed magnetic floating positioning mark plate 9, and the material provided by the vacuum mixing tank 1 is used to be poured on the outside of the substrate 8.

[0055] In this embodiment, the vacuum device 2 can evacuate the vacuum tank 3. Since the vacuum tank 3 is connected to the discharge pipe 7, the air in the cavity 43 of the casting mold 4 can be directly extracted through the vacuum tank 3 and the discharge pipe 7 in sequence, so that the air in the cavity 43 can be discharged more thoroughly. In addition, the cavity 43 is fed from bottom to top, and the material entering the cavity 43 can also use its own weight to press the material currently entering the cavity 43, which can effectively remove the air in the material, and the vacuum operation in the cavity can also provide assistance for the material to enter the cavity 43, which can improve the efficiency and quality of the casting process.

[0056] To ensure the efficiency and sufficiency of pouring, at least one of the vacuum mixing tank 1, the feed pipe 6, and the vacuum tank 3 is provided with a heating system with a heating function. Specifically, a heating system can be provided on all three, which can ensure that the epoxy resin is poured at a specified temperature to avoid insufficient pouring due to the influence of the surrounding environment, such as too low temperature of the epoxy resin and slow pouring.

[0057] For the structure and assembly of the casting mold 4, Figure 5 and Figure 6 As shown, the casting mold 4 and its inner mold cavity 43 are tiltedly arranged in the vacuum tank 3. Among them, the first angular structure 44 on a diagonal line of the casting mold 4 is located at the bottom of the casting mold 4, the second angular structure 45 is located at the top of the casting mold 4, the feed port 41 is arranged on the first angular structure 44, and the discharge port 42 is arranged on the second angular structure 45.

[0058] Since the material is fed from bottom to top in the cavity 43, when designing the feed port 41 and the discharge port 42 on the casting mold 4, in this embodiment, the feed port 41 and the discharge port 42 are selected on a diagonal line of the casting mold 4. Since the diagonal direction has a larger distance than the two opposite surfaces of the casting mold 4, sufficient space can be provided for the setting of the flow channel in the casting mold 4. In addition, since the discharge port 42 is arranged on the diagonal line, the cavity 43 can also have sufficient space or distance at the discharge port 42, so that the top of the cavity 43 is poured full before entering the discharge port 42.

[0059] Specifically, Figure 3 , Figure 4 and Figure 5 As shown, the projection figure of the casting mold 4 in the first direction X has four vertex angles, and can be specifically a rectangle. The two opposite vertex angles on one of the diagonals of the projection figure are the projection figures corresponding to the first angular structure 44 and the second angular structure 45, respectively, so as to reduce the processing difficulty of the casting mold 4.

[0060] Specifically, Figure 4 As shown, a support frame 31 is further provided in the inner cavity of the vacuum tank 3 to support the casting mold 4 tiltedly disposed in the inner cavity of the vacuum tank 3, so as to ensure the stability of the casting mold 4 supported by the angle structure. A side surface of the casting mold 4 parallel to the first direction X is tilted and pressed on the support frame 31.

[0061] As for the number of casting molds 4, one is provided in this embodiment. In other embodiments, in order to improve the casting efficiency, multiple casting molds 4 are provided in the vacuum tank 3, for example, 8, or any number between 2 and 7, so as to realize the casting of different numbers of 1 to 8 sign boards. Different casting molds 4 can be detachably fixedly connected together, for example, by screw connection. In addition, the cavities 43 of each casting mold 4 are connected in series or in parallel.

[0062] Series connection means that the feed pipe 6 is connected to the feed port 41 of one of the casting molds 4, and the discharge pipe 7 is connected to the discharge port 42 of another casting mold. For the remaining feed ports 41 and discharge ports 42 of these casting molds 4, the feed ports 41 and discharge ports 42 of different casting molds 4 are connected, so that the cavities 43 of these casting molds 4 are connected in series. When connecting, different casting molds 4 can be connected through pipelines; they can also be connected through flow channels opened on the casting molds. At this time, the cavities 43 of each casting mold 4 can be poured with materials one by one from the cavity 43 of the casting mold 4 close to the feed pipe 6 to the cavity 43 of the casting mold 4 far away from the feed pipe 6. As the materials continue to enter different cavities 43, the later-entered materials can always provide pressure to the earlier-entered materials, which can better ensure the compactness of the casting part.

[0063] Parallel connection means that the feed ports 41 of different casting molds 4 are connected together, and the discharge ports 42 are connected together. At this time, the mold cavities 43 of each casting mold 4 can be filled with materials synchronously, which is conducive to improving the casting efficiency.

[0064] In addition, regarding the arrangement of multiple casting molds 4, specifically, all casting molds 4 can be arranged in sequence along the first direction X, and at this time, each casting mold 4 is respectively in contact with and supported by the support frame 31; or, they are arranged in sequence along a direction away from the support frame 31.

[0065] In addition, if Figure 6 and Figure 7 As shown, the casting system of the high-speed magnetic levitation positioning mark plate also includes a clamp 5 for clamping and solidifying the high-speed magnetic levitation positioning mark plate 9 after casting. After casting, the mark plate in the casting mold can be solidified once, the mold can be opened, and the mark plate can be solidified for a second time with the help of the clamp 5.

[0066] Specifically, one clamp includes two clamping plates 51, and the sign board is clamped between the two clamping plates 51. The two clamping plates 51 can be detachably fixedly connected by bolts. In addition, one clamp 5 can fix one or more sign boards at the same time.

[0067] Fixing the sign board with the clamp can avoid bending caused by thermal expansion and contraction of the code narrow slit 81 of the sign board during secondary curing, thereby ensuring product quality.

[0068] In the pouring system of this embodiment, a specific operation step includes:

[0069] The vacuum mixing tank 1 is started, and the heating system on the vacuum mixing tank 1 heats the vacuum mixing tank 1 to a required temperature, and the vacuum device 2 is connected to perform vacuum mixing;

[0070] The vacuum tank 3 and the casting mold 4 are simultaneously evacuated to exhaust the air in the cavity 43 of the casting mold 4 more thoroughly, wherein the casting mold 4 is placed in the vacuum tank 3 at an angle;

[0071] Pouring epoxy resin from bottom to top in the casting mold 4;

[0072] After the epoxy resin is discharged, the vacuum pipe 21 between the vacuum tank 3 and the vacuum device 2 is tightened three times, and the vacuum mixing tank 1 is pressurized to continuously feed the epoxy resin, so that the epoxy resin is fed more fully;

[0073] After primary curing, the casting mold 4 is opened, and the product in the casting mold 4 is cleaned;

[0074] The fixture 5 fixes the product and performs secondary curing on the product.

[0075] In addition to the above-mentioned high-speed magnetic levitation positioning mark plate casting system, the present invention also provides a high-speed magnetic levitation positioning mark plate casting method, and the high-speed magnetic levitation positioning mark plate casting method can be applied to the high-speed magnetic levitation positioning mark plate casting system in any of the above-mentioned embodiments.

[0076] Wherein, the pouring method comprises:

[0077] S1: Perform a casting step. The casting step can eventually obtain a high-speed magnetic levitation positioning sign plate 9 formed by casting.

[0078] S2: After the pouring step, a curing step is performed.

[0079] Specifically, S1: pouring step, specifically including:

[0080] S11 : controlling the vacuum device 2 to perform vacuum operation on the vacuum tank 3 , and controlling the vacuum mixing tank 1 to supply material to the cavity 43 of the casting mold 4 .

[0081] The start time of the vacuuming operation of the vacuuming device 2 and the feeding operation of the vacuum mixing tank 1 can be controlled by a preset program. For example, the vacuuming device 2 can be set to start at a set time (e.g., 10 minutes) before the vacuum mixing tank 1 starts feeding, and then the vacuuming device 2 is kept started and the vacuum mixing tank 1 is also started.

[0082] Among them, in order to ensure sufficient pouring, during the process of the vacuum mixing tank 1 feeding the cavity 43 of the pouring mold 4, the heating system can be controlled to adjust the temperature of the vacuum mixing tank 1 and / or the feeding pipe 6 and / or the pouring model and / or the vacuum tank 3 according to parameters such as the flow rate of the material in the feeding pipe 6, or the temperature of the material in the feeding pipe 6 or the vacuum mixing tank 1, so that the above parameters are kept within the set standard area.

[0083] The material in the vacuum mixing tank 1 enters the mold cavity 43 from bottom to top to obtain a high-speed magnetic levitation positioning sign plate 9 formed by casting.

[0084] In the process of the material in the vacuum mixing tank 1 entering the cavity 43 from bottom to top, when the material overflows from the casting mold 4 to the discharge pipe 7, the following steps are specifically performed:

[0085] S111: Maintain the feeding operation of the vacuum mixing tank 1, and at the same time, disconnect the vacuuming device 2 from the vacuuming operation of the vacuum tank 3 for a set time and / or a set number of times.

[0086] S112: Stop the feeding operation of the vacuum mixing tank 1 and the vacuuming operation of the vacuum tank 3 by the vacuuming device 2 to obtain the cast high-speed magnetic floating positioning mark plate 9.

[0087] When material enters the discharge pipe 7 from the casting mold 4, the cavity 43 of the casting mold 4 is filled with material. At this time, the vacuuming device 2 is disconnected from the vacuum tank 3 for a set time and / or a set number of times. During the disconnection period, the vacuum mixing tank 1 still continues to feed material. The vacuum mixing tank 1 continues to supply material to the casting mold 4 to continuously pressurize the cavity 43, so that the epoxy resin is fed more fully and the molding effect is better.

[0088] In order to disconnect the vacuuming operation of the vacuum device 2 on the vacuum tank 3, specifically, the vacuum device 2 is connected to the vacuum tank 3 via a vacuum tube 21, and the vacuum tube 21 is a hose. The disconnection operation can be achieved by clamping the vacuum tube 21.

[0089] The set number of times can be three, or other numbers can be set as needed, and the set duration can also be set as needed, for example, 2 minutes, 10 seconds, etc. In addition, the set duration can be disconnected each time. When the set number of times is multiple, between two adjacent disconnections of the vacuuming operation of the vacuuming device 2 on the vacuum tank 3, the vacuuming operation of the vacuuming device 2 on the vacuum tank 3 is maintained in progress.

[0090] Among them, the arrangement of the feed pipe 6 and the discharge pipe 7 is as follows: Figure 3 As shown, the vacuum tank 3 is provided with a first sealing port 32, a second sealing port 33, and an air extraction port 34. One end of the feed pipe 6 is connected to the feed port 41, extends out of the vacuum tank 3 through the first sealing port 32, and is connected to the vacuum mixing tank 1. The first sealing port 32 and the feed pipe 6 are sealed. One end of the discharge pipe 7 is connected to the discharge port 42, extends out of the vacuum tank 3 through the second sealing port 33, and is connected to the air extraction port 34. The discharge pipe 7 is sealed with the air extraction port 34 and the second sealing port 33.

[0091] At this time, the portion of the discharge pipe 7 between the air extraction port 34 and the second sealing port 33 is externally placed in the vacuum tank 3. To facilitate observation of the discharge situation in the discharge pipe 7, when material appears in this externally placed pipe section in the discharge pipe 7, it can be determined that the material overflows into the discharge pipe 7; or, when material appears in the pipe section between the discharge port 42 and the second sealing port 33 in the discharge pipe 7, it can be determined that the material overflows into the discharge pipe 7. In addition, the second sealing port 33 is lower than the air extraction port 34 to prevent the material in the discharge pipe 7 from directly overflowing into the vacuum tank 3 under the action of gravity.

[0092] Of course, in other embodiments, the discharge pipe 7 can also be built into the vacuum tank 3, with one end connected to the discharge port and the other end connected to any point on the inner wall of the vacuum tank 3 and communicated with the inner cavity of the vacuum tank 3.

[0093] In order to further accurately determine whether the material overflows to the discharge pipe 7, a detection device such as a pressure sensor can be provided in the discharge pipe 7, and a first control valve can be provided on the vacuum pipe 21. Accordingly:

[0094] When the detection device detects the material, the material overflows from the casting mold 4 to the discharge pipe 7, and then the vacuum pumping operation of the vacuum tank 3 by the vacuum pumping device 2 is disconnected, specifically: the first control valve is closed to disconnect the vacuum pumping pipe 21. At this time, the vacuum pumping operation of the vacuum tank 3 by the vacuum pumping device 2 for a set time period is disconnected, which can be achieved by closing the first control valve for a set time period.

[0095] The time intervals of the vacuuming operation (referred to as disconnecting the vacuuming operation) of each vacuuming device 2 on the vacuum tank 3 may be the same. For example, the vacuuming operation is disconnected once at every set interval until the set number of times is performed.

[0096] In addition, in order to prevent the material from overflowing into the vacuum tank 3 through the discharge pipe 7, an overflow detection device (such as a pressure sensor, a flow sensor, an optical sensor) may be provided at an opening on the discharge pipe 7 away from the discharge port 42, or at a position close to the opening. When the material reaches this position, there is a risk of overflowing into the vacuum tank 3. The overflow detection device may send a signal to an alarm device to alarm, or control the vacuum mixing tank 1 to stop the feeding operation through the signal, or control the second control valve added to the discharge pipe 7 to close, thereby blocking the material on the discharge pipe 7 and preventing it from continuing to flow into the vacuum tank 3.

[0097] Alternatively, in other embodiments, during the process of the material in the vacuum mixing tank 1 entering the cavity 43 from bottom to top, when the material overflows from the casting mold 4 to the discharge pipe 7, a pressure test (for example, at the feed pipe or the discharge pipe) or an ultrasonic test of the structure in the cavity of the casting mold can be performed to determine the adequacy of the casting, and the set time and number of times corresponding to the disconnection of the vacuum operation can be adaptively determined accordingly.

[0098] Specifically, S2: curing step, comprising:

[0099] S21: The high-speed magnetic levitation positioning mark plate 9 cast in the casting mold 4 is solidified once.

[0100] S22: Open the casting mold 4 and clean the demoulding high-speed magnetic levitation positioning mark plate 9.

[0101] S23: The high-speed magnetic levitation positioning mark plate 9 is clamped and fixed by the clamp 5, and the high-speed magnetic levitation positioning mark plate 9 is reinforced for the second time.

[0102] The curing is performed twice. After the pouring is completed, the pouring mold 4 is not opened first, and the sign plate is cured once. After that, the mold is opened, the high-speed magnetic levitation positioning sign plate 9 is cleaned (for example, the burrs on the surface of the high-speed magnetic levitation positioning sign plate 9 are removed), and the sign plate 9 is fixed with a clamp 5 for secondary curing.

[0103] The pouring system and pouring method provided by the present invention can solve the problems of insufficient pouring and curing bending of the sign plate, and the beneficial effects specifically include: 1. The vacuum tank 3 is connected to the pouring mold 4, and the vacuum tank 3 and the pouring mold are evacuated at the same time, so that the air in the cavity 43 of the pouring mold 4 can be discharged more thoroughly; 2. The pouring mold 4 is placed at an angle, and the epoxy resin is poured from bottom to top in the cavity 43; 3. After the epoxy resin is discharged to the discharge pipe 7, the vacuum pipe 21 between the vacuum pumping device 2 and the vacuum tank 3 is clamped three times, and the vacuum mixing tank 1 is pressurized to continuously feed the pouring mold 4, so that the epoxy resin in the cavity 43 is fed more fully; 4. After pouring and molding, the high-speed magnetic levitation positioning sign plate 9 is cured once and then the mold is opened to clean the product, so as to ensure the surface quality of the product; 5. The clamp 5 is used to fix the sign plate, and secondary curing is performed to ensure the curing effect.

[0104] It should be noted that when an element is referred to as "fixed" to another element, it may be directly on the other element or there may be an element in the middle. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an element in the middle. In addition, in the description of the present invention, unless otherwise specified, "multiple", "multiple roots", "multiple groups" mean two or more.

[0105] The terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0106] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0107] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0108] The pouring system and pouring method provided by the present invention are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A casting system for high-speed magnetic levitation positioning signboard, It is characterized in that It comprises a vacuum mixing tank (1), a vacuum extraction device (2), a vacuum tank (3) and a casting mold (4); The vacuum mixing tank (1) is located outside the vacuum tank (3), and the casting mold (4) is located in the inner cavity of the vacuum tank (3); The vacuum extraction device (2) is connected to the vacuum tank (3), and can directly evacuate the inner cavity of the vacuum tank (3), and can also evacuate the casting mold (4) via the discharge pipe (7); The feed port (41) of the casting mold (4) is connected to the vacuum mixing tank (1) via a feed pipe (6), and the discharge port (42) is connected to the inner cavity of the vacuum tank (3) via a discharge pipe (7). The discharge port (42) is higher than the feed port (41) so that the cavity (43) of the casting mold (4) can be fed from bottom to top. The cavity (43) of the casting mold (4) can accommodate a substrate (8) of a high-speed magnetic levitation positioning mark plate (9), and the material provided by the vacuum mixing tank (1) is used to be cast on the outside of the substrate (8).

2. The pouring system according to claim 1, It is characterized in that The casting mold (4) and the mold cavity (43) therein are arranged obliquely in the vacuum tank (3); wherein a first angular structure (44) on a diagonal line of the casting mold (4) is located at the bottom of the casting mold (4), and a second angular structure (45) is located at the top of the casting mold (4); the feed port (41) is arranged on the first angular structure (44), and the discharge port (42) is arranged on the second angular structure (45).

3. The pouring system according to claim 2, It is characterized in that The projection figure of the casting mold (4) in the first direction (X) has four vertex angles, and two opposite vertex angles on a diagonal line are projection figures corresponding to the first angular structure (44) and the second angular structure (45), respectively.

4. The pouring system according to claim 3, It is characterized in that A support frame (31) is also provided in the inner cavity of the vacuum tank (3) to support the casting mould (4) which is tiltedly arranged in the inner cavity of the vacuum tank (3); a side surface of the casting mould (4) which is parallel to the first direction (X) is tiltedly pressed on the support frame (31).

5. The pouring system according to any one of claims 1 to 4, It is characterized in that The plurality of casting moulds (4) are arranged in the vacuum tank (3), and the mould cavities (43) of the respective casting moulds (4) are connected in series or in parallel.

6. The pouring system according to any one of claims 1 to 4, It is characterized in that It also includes a clamp (5) for clamping and solidifying the high-speed magnetic levitation positioning marker plate (9) after casting.

7. The pouring system according to any one of claims 1 to 4, It is characterized in that At least one of the vacuum mixing tank (1), the feed pipe (6), and the vacuum tank (3) is provided with a heating system having a heating function.

8. A method for casting a high-speed magnetic levitation positioning sign plate. It is characterized in that Applicable to the pouring system according to any one of claims 1 to 7; the pouring method comprises a pouring step; The pouring step comprises: The vacuum extraction device (2) is controlled to perform a vacuum extraction operation on the vacuum tank (3), and the vacuum mixing tank (1) is controlled to supply material to the cavity (43) of the casting mold (4), wherein the material in the vacuum mixing tank (1) enters the cavity (43) from bottom to top, so as to obtain a high-speed magnetic floating positioning sign plate (9) formed by casting.

9. The pouring method according to claim 8, It is characterized in that The pouring step also includes: During the process of the material in the vacuum mixing tank (1) entering the mold cavity (43) from bottom to top, when the material overflows from the casting mold (4) to the discharge pipe (7): The feeding operation of the vacuum mixing tank (1) is maintained, and at the same time, the vacuuming operation of the vacuum tank (3) by the vacuuming device (2) is disconnected for a set time and / or a set number of times, and then the feeding operation of the vacuum mixing tank (1) and the vacuuming operation of the vacuum tank (3) by the vacuuming device (2) are stopped, so as to obtain a cast high-speed magnetic floating positioning mark plate (9).

10. The pouring method according to claim 8, It is characterized in that After the pouring step, a curing step is also included; The curing step comprises: Performing a primary curing on the high-speed magnetic levitation positioning sign plate (9) cast in the casting mold (4); Opening the casting mold (4) and cleaning the demoulded high-speed magnetic floating positioning mark plate (9); The high-speed magnetic levitation positioning mark plate (9) is clamped and fixed by the clamp (5), and secondary reinforcement of the high-speed magnetic levitation positioning mark plate (9) is performed.

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