A multi-station flange casting mechanical device

Abstract

The present invention relates to the technical field of casting machines, and specifically relates to a multi-station flange casting mechanical device, comprising a driving base, a combination roller, a combination mold and a feeding barrel, wherein a plurality of flange cavities are spaced apart in the combination mold, and a hollow diverter cylinder is also included, wherein the diverter cylinder is horizontally connected and installed on the feeding barrel, and a plurality of discharge holes connected to the interior are spaced apart on the diverter cylinder, and the discharge holes correspond one to one with the flange cavities; a sealing unit is movably arranged on the diverter cylinder and seals each discharge hole at the same time. The multi-station flange casting mechanical device realizes uniform distribution and precise control of liquid metal in a plurality of flange cavities through an optimized liquid metal distribution and flow control system, especially through the design of a hollow diverter cylinder and a separation ring therein. In addition, the device is also equipped with an efficient sealing and driving system, which ensures the accuracy and synchronization of liquid metal filling and avoids casting quality problems caused by uneven pouring.

Description

Technical Field

[0001] The invention relates to the technical field of casting machines, in particular to a multi-station flange casting mechanical device. Background Art

[0002] In recent years, with the rapid development of the manufacturing industry, multi-station casting machinery has gradually attracted widespread attention in the industry because of its ability to significantly improve production efficiency. Among them, the multi-piece centrifugal casting flange mold disclosed in patent application No. CN201710555006.9 has become one of the representatives in the field of multi-station casting machinery because of its advantage of being able to cast multiple flanges at the same time.

[0003] However, although this type of multi-station centrifugal casting device has achieved remarkable results in improving production efficiency, there are still some problems that cannot be ignored in the distribution and flow control of liquid metal. In particular, during the centrifugal casting process, when liquid metal flows from one end of the mold to the other, the casting near the filling port will frequently come into contact with the continuously added liquid metal under the action of centrifugal force. This frequent alternating hot and cold process can easily lead to stress concentration inside the casting, thereby affecting the quality of the casting.

[0004] In addition, as the liquid metal flows from one end to the other in the mold, especially in the process of flowing to the rear station, the temperature of the liquid metal will inevitably drop. This uncontrollable cooling process will not only affect the microstructure of the casting, but may also cause uneven cooling of the casting before molding, thereby affecting the dimensional accuracy and mechanical properties of the casting. For this reason, we propose a multi-station flange casting mechanical device. Summary of the invention

[0005] A technical problem to be solved by this application is to design a new casting liquid filling method to avoid problems affecting the quality of multi-station castings.

[0006] In order to solve the above technical problems, the embodiment of the present application provides a multi-station flange casting mechanical device, including a driving base, a combined roller, a combined mold and a feeding bucket, wherein a plurality of flange cavities are spaced apart in the combined mold, and further includes:

[0007] A hollow flow divider, which is horizontally mounted on the feed barrel and has a plurality of discharge holes that are spaced apart and communicate with the interior, and the discharge holes correspond one to one with the flange cavity;

[0008] A plugging unit is movably arranged on the diverter tube and blocks each discharge hole at the same time;

[0009] The mechanical driving unit is arranged on the feeding barrel, and drives the blocking unit to move when the amount of liquid metal at each position in the diverter tube is the same, so as to cancel the blocking of the discharge hole.

[0010] In some embodiments, a plurality of dividing rings are provided in the diverter tube to divide the diverter tube into a plurality of material chambers, and the discharge holes correspond to the material chambers one by one.

[0011] In some embodiments, an air leakage hole communicating with the material chamber is also provided on the diverter cylinder.

[0012] In some embodiments, the air leakage hole includes an air leakage inlet and an air leakage outlet;

[0013] A guide cavity is also provided in the diverter tube, the air leakage inlet is located at one end of the diverter tube close to the feeding barrel and connects the guide cavity and the material cavity, and the air leakage outlet is located at one end of the outside of the diverter tube away from the feeding barrel and connects the guide cavity.

[0014] In some embodiments, the side walls of the cavity are all recessed toward the discharge hole.

[0015] In some embodiments, the sealing unit includes a plurality of sealing rings slidably mounted on the diverter cylinder, the sealing rings correspond one-to-one to the discharge holes, and adjacent sealing rings are integrally connected by connecting rods, and the mechanical drive unit is connected to the sealing ring closest to the feeding barrel.

[0016] In some embodiments, an extension rod is slidably passed through the end of the diverter tube, the extension rod passes through a plurality of separation rings at the same time, and a plurality of stoppers corresponding to the separation rings are installed on the extension rod;

[0017] And one end of the extension rod located outside the diversion tube is integrally connected with the blocking ring by a connecting rod.

[0018] In some embodiments, the end of the diverter tube is open and provided with an external thread, and a plugging cap is threadedly mounted thereon, and the extension rod slides through the plugging cap;

[0019] The extension rod is a cylindrical rod body, and one end outside the diverter tube is provided with an external thread and a docking seat is threadedly installed. The blocking ring is integrally connected with the docking seat by a connecting rod so that the extension rod and the block are detachable in the diverter tube.

[0020] In some embodiments, a rotating shaft is installed at the bottom of the feeding barrel by means of a bearing seat, and a supporting leg with a base is rotatably installed by means of the rotating shaft;

[0021] A balancing foot is also provided at the bottom of the feeding bucket, the balancing foot includes a fixed leg and a telescopic rod rotating on the top of the fixed leg, and the end of the telescopic rod is rotatably connected to the feeding bucket to cooperate with the leg to balance and support the feeding bucket;

[0022] A cam is also fixed at the end of the rotating shaft, and a compression spring is fixed on the support leg below the cam. A top ring with a sliding sleeve on the support leg is fixed on the top of the compression spring, and a protrusion that contacts the cam is provided on the top of the top ring. When liquid metal is equally distributed at various positions in the diversion cylinder, the cam overcomes the elastic force of the compression spring and deflects to cause the feeding barrel to tilt.

[0023] In some embodiments, the mechanical drive unit includes a push rod having two ends rotatably connected to the support leg base and the sealing ring respectively, and the push rod pushes the sealing ring to move when the feeding barrel is deflected.

[0024] The present invention has at least the following beneficial effects:

[0025] 1. Through the optimized liquid metal distribution and flow control system, especially through the hollow diverter tube and its internal separation ring design, the uniform distribution and precise control of liquid metal in multiple flange cavities are achieved. In addition, the device is also equipped with an efficient blocking and driving system to ensure the accuracy and synchronization of liquid metal filling, avoiding casting quality problems caused by uneven pouring;

[0026] 2. The device also includes a detachable diverter tube design, which facilitates the cleaning and replacement of key components and improves the maintenance efficiency of the equipment. At the same time, the balance foot and cam mechanism design at the bottom of the feed barrel ensures the stability of the feed barrel when the liquid metal is equally distributed, further improving the reliability of the casting process;

[0027] In addition, the device is designed with a unique vent hole system, which preheats the diverter tube with high-temperature gas, effectively reducing the heat exchange between the liquid metal and the diverter tube, maintaining the stability of the casting temperature, and thus improving the quality of the casting.

[0028] In summary, this multi-station flange casting mechanical device achieves efficient distribution, precise control and stable casting of liquid metal through a series of innovative designs, significantly improves the production efficiency and quality of flange castings, and provides an efficient and reliable solution for the casting industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 For the present invention Figure 1 Schematic diagram of the partial cross-section structure of the middle combined roller and combined mold;

[0031] Figure 3 This is a schematic diagram of the cross-sectional structure of the flow divider of the present invention;

[0032] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure of the middle A area;

[0033] Figure 5 For the present invention Figure 3 Schematic diagram of the main plane structure;

[0034] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure of the middle B area;

[0035] Figure 7 For the present invention Figure 5 Schematic diagram of the enlarged structure of area C in the middle.

[0036] In the figure: 1. driving base; 2. combined roller; 3. combined mold; 4. feeding barrel; 41. rotating shaft; 42. supporting leg; 43. fixed leg; 44. telescopic rod; 45. cam; 46. compression spring; 47. top ring; 5. diverter tube; 51. separating ring; 52. air vent; 521. air vent inlet; 522. air vent outlet; 53. guide cavity; 6. discharge hole; 7. blocking unit; 71. blocking ring; 72. extension rod; 73. block; 74. blocking cap; 75. docking seat; 8. mechanical driving unit; 81. ejector rod; 9. flange cavity; 10. lateral moving guide rail. DETAILED DESCRIPTION

[0037] 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.

[0038] Example 1: Please refer to Figure 1-7 The present invention provides a technical solution: a multi-station flange casting mechanical device, which aims to improve the casting quality and production efficiency by optimizing the distribution and flow control of liquid metal. The device includes a driving base 1, a combined roller 2, a combined mold 3 and a feeding bucket 4. A plurality of flange cavities 9 are designed in the combined mold 3 to meet the needs of multi-station casting. The combined mold 3 is placed in the combined roller 2. The driving base 1 is used to drive the combined roller 2 to rotate continuously at a high speed to perform centrifugal casting. In addition, the device also includes:

[0039] 1. Diversion and unloading system

[0040] The core of the device lies in its efficient diversion and unloading system. The hollow diversion tube 5 is horizontally connected and installed on the feed barrel 4. A plurality of discharge holes 6 connected to the inside are arranged at intervals on the diversion tube 5. These discharge holes 6 correspond to the flange cavity 9 one by one. In order to ensure the uniform distribution of liquid metal in the diversion tube 5, a plurality of separation rings 51 are particularly provided in the diversion tube 5 to divide the diversion tube 5 into a plurality of material cavities. It should be noted that in actual use, the bottom height of the diversion port of the separation ring 51 can be reasonably set according to the cavity size, that is, the amount of liquid metal in each material cavity can be changed by changing the size of the ring opening of the separation ring 51, and when the liquid metal level in each material cavity is just flush with the ring opening of the separation ring 51, it is the amount of a flange casting. Such a design helps to accurately control the amount of casting material added to each workstation, which is convenient for casting and helps to ensure the quality of castings.

[0041] In addition, in order to discharge the gas in the material cavity to ensure the smooth flow of liquid metal, a gas leakage hole 52 connected to the material cavity is further opened on the diverter tube 5 to balance the internal pressure of the diverter tube 5 and ensure the smooth flow of liquid metal.

[0042] 2. Blocking and driving system

[0043] In order to accurately control the outflow of liquid metal, a sealing unit 7 is also designed, which includes a plurality of sealing rings 71 slidably mounted on the diverter tube 5. These sealing rings 71 correspond to the discharge holes 6 one by one, and adjacent sealing rings 71 are integrally connected by connecting rods to achieve synchronous movement. A mechanical drive unit 8 is arranged on the feeding barrel 4. When no liquid metal is initially added, the discharge holes 6 are all blocked. At this time, liquid metal is started to be added to the diverter barrel 4. When the amount of liquid metal at each position in the diverter tube 5 is the same, that is, each material cavity is evenly filled with an equal amount of liquid, the mechanical drive unit 8 will drive the sealing unit 7 to move, cancel the blockage of the discharge hole 6, and allow the liquid metal to flow into each flange cavity 9 simultaneously and evenly, effectively avoiding the casting close to the filling port from frequently contacting with the continuously added liquid metal under the action of centrifugal force, thereby avoiding the problem that this frequent alternation of hot and cold processes can easily lead to stress concentration inside the casting and affect the quality of the casting.

[0044] In addition, an extension rod 72 is slidably passed through the end of the diverter tube 5, and the extension rod 72 passes through a plurality of separation rings 51 at the same time, and a plurality of stoppers 73 corresponding to the separation rings 51 are installed on the extension rod 72;

[0045] The end of the extension rod 72 located outside the diverter tube 5 is integrally connected to the sealing ring 71 by a connecting rod. This design allows the dividing ring 51 to be sealed before the synchronous hole is opened to fill the cavity, so that each cavity is relatively independent, to avoid the diverter tube 5 tilting and causing the liquid in the cavity to flow to the adjacent cavity, further ensuring accurate injection.

[0046] 3. Detachable design

[0047] To facilitate maintenance and replacement, the concept of detachability is incorporated into the design of the diverter tube 5. The end of the diverter tube 5 is open and has an external thread, on which a sealing cap 74 is threadedly installed. The extension rod 72 slides through the sealing cap 74, and the end of the extension rod 72 located outside the diverter tube 5 is provided with an external thread and has a docking seat 75 threadedly installed. The sealing ring 71 is integrally connected to the docking seat 75 through a connecting rod. In this way, when it is necessary to clean or replace the sealing ring 71 or the block 73, it is only necessary to unscrew the sealing cap 74 and the docking seat 75 to easily remove the extension rod 72, the block 73 and the sealing ring 71.

[0048] 4.Balance and drive mechanism

[0049] In order to ensure the stability of the feeding barrel 4 when the liquid metal is equally distributed, a unique balancing and driving mechanism is designed. A rotating shaft 41 is installed at the bottom of the feeding barrel 4 using a bearing seat, and a support leg 42 with a base is rotatably installed. At the same time, a balancing foot is also arranged at the bottom of the feeding barrel 4, including a fixed leg 43 and a telescopic rod 44 rotating on the top of the fixed leg 43. The end of the telescopic rod 44 is rotatably connected to the feeding barrel 4 to cooperate with the support leg 42 to balance and support the feeding barrel 4. A cam 45 is fixed at the end of the rotating shaft 41, and a compression spring 46 is fixedly sleeved on the support leg 42 at a position below the cam 45. A top ring 47 slidably sleeved on the support leg 42 is fixed to the top of the compression spring 46, and a protrusion contacting the cam 45 is arranged on the top of the top ring 47. In this way, the feeding barrel 4 remains balanced when it is not filled initially. After the liquid metal is filled into the feeding barrel 4, it can remain horizontal by reasonably setting the position of the support legs 42. However, when the liquid metal is equally distributed at various positions in the diverter tube 5, since the diverter tube 5 is placed horizontally on the side of the feeding barrel 4 and cooperates with the supporting device of the feeding barrel 4 to form a lever-like design, only when a sufficient amount of liquid metal is injected into the diverter tube 5 and the end must be sufficient can sufficient pressure be provided, so that the diverter tube 5 can pry the feeding barrel 4 to overcome the elastic force of the compression spring 46 and press down the protrusion on the top ring 47. At this time, the feeding barrel 4 deflects, and at the same time, the push rod 81 will push the sealing ring 71 to move, cancel the blockage of the discharge hole 6, and then complete the synchronous filling of each material cavity.

[0050] Embodiment 2: This embodiment further improves the design of the above-mentioned embodiment 1: the air leakage hole 52 includes an air leakage inlet 521 and an air leakage outlet 522. The air leakage inlet 521 is located at one end of the diverter tube 5 close to the feed barrel 4 and is connected to the material chamber through the guide chamber 53, while the air leakage outlet 522 is located at one end of the outer side of the diverter tube 5 away from the feed barrel 4 to ensure smooth discharge of gas. With such a design, when liquid metal is added and the air pressure is balanced by the air leakage hole 52, the gas in the diverter tube 5 enters the guide chamber 5 from the air leakage inlet 521. 3 will be heated by the high-temperature liquid metal before, and at this time, after the high-temperature gas enters the guide cavity 53, it will flow through the position around the material cavity in the diverter tube 5, so that the position in the diverter tube 5 that has not yet contacted the liquid metal can be effectively heated up, avoiding excessive heat exchange caused by the liquid metal contacting the diverter tube 5 when it is filled, thereby affecting the casting temperature and the quality of the casting. The design of the guide cavity 53 can provide an effective and environmentally friendly insulation method for the diverter tube 5, which helps to keep the casting warm during the filling process and ensure the quality of the casting.

[0051] Embodiment 3: This embodiment further improves the technical solution based on Embodiment 1 and Embodiment 2: Since a series of units such as the diverter tube 5 are added to the feeding barrel 4, it is no longer convenient to move it, so a transverse moving guide rail 10 is added to facilitate its movement.

[0052] In addition, it should be noted that all characteristic components of the present application have been subjected to heat preservation treatment to adapt to high-temperature casting liquid and ensure stable use.

[0053] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-station flange casting mechanical device, comprising a driving base (1), a combined roller (2), a combined mold (3) and a feeding bucket (4), wherein a plurality of flange cavities (9) are arranged in intervals in the combined mold (3), characterized in that: Also included are: A hollow flow divider (5), the flow divider (5) being horizontally mounted on the feed barrel (4), and having a plurality of discharge holes (6) which are in communication with the interior thereof, arranged at intervals on the flow divider (5), the discharge holes (6) corresponding one to one with the flange cavity (9); A blocking unit (7) is movably arranged on the diversion cylinder (5) and blocks each discharge hole (6) at the same time; The mechanical drive unit (8) is arranged on the feed barrel (4) and drives the blocking unit (7) to move when the amount of liquid metal at each position in the diverter tube (5) is the same, so as to cancel the blocking of the discharge hole (6).

2. The multi-station flange casting mechanical device according to claim 1 is characterized in that: A plurality of dividing rings (51) are arranged in the diverter tube (5) to divide the diverter tube (5) into a plurality of material chambers, and the discharge holes (6) correspond to the material chambers one by one.

3. The multi-station flange casting mechanical device according to claim 2 is characterized in that: The diverter tube (5) is also provided with an air leakage hole (52) which is in communication with the material chamber.

4. The multi-station flange casting mechanical device according to claim 3 is characterized in that: The air leakage hole (52) comprises an air leakage inlet (521) and an air leakage outlet (522); A guide cavity (53) is also provided in the diverter tube (5); the air leakage inlet (521) is located at one end of the diverter tube (5) close to the feed barrel (4) and communicates with the guide cavity (53) and the feed chamber; the air leakage outlet (522) is located at one end of the outside of the diverter tube (5) away from the feed barrel (4) and communicates with the guide cavity (53).

5. The multi-station flange casting mechanical device according to claim 4 is characterized in that: The side walls of the cavity are all recessed toward the discharge hole (6).

6. The multi-station flange casting mechanical device according to claim 5, characterized in that: The blocking unit (7) comprises a plurality of blocking rings (71) slidably sleeved on the diverter tube (5), the blocking rings (71) corresponding one to one with the discharge holes (6), and adjacent blocking rings (71) being integrally connected by connecting rods, and the mechanical drive unit (8) is connected to the blocking ring (71) closest to the feed barrel (4).

7. The multi-station flange casting mechanical device according to claim 6, characterized in that: An extension rod (72) is slidably inserted through the end of the diverter tube (5), the extension rod (72) simultaneously passes through a plurality of separation rings (51), and a plurality of stoppers (73) corresponding one to one with the separation rings (51) are mounted on the extension rod (72); Furthermore, one end of the extension rod (72) located outside the diversion cylinder (5) is integrally connected to the blocking ring (71) by means of a connecting rod.

8. The multi-station flange casting mechanical device according to claim 7, characterized in that: The end of the diversion cylinder (5) is open and provided with an external thread, and a sealing cap (74) is threadedly mounted thereon, and the extension rod (72) slides through the sealing cap (74); The extension rod (72) is a cylindrical rod body, and one end located outside the diverter tube (5) is provided with an external thread, and a docking seat (75) is threadedly mounted thereon; the blocking ring (71) is integrally connected to the docking seat (75) by means of a connecting rod, so that the extension rod (72) and the stopper (73) are detachable in the diverter tube (5).

9. The multi-station flange casting mechanical device according to claim 8, characterized in that: A rotating shaft (41) is installed at the bottom of the feeding barrel (4) by means of a bearing seat, and a supporting leg (42) with a base is rotatably installed by means of the rotating shaft (41); A balancing foot is also provided at the bottom of the feeding barrel (4), the balancing foot comprising a fixed leg (43) and a telescopic rod (44) rotatably connected to the top of the fixed leg (43), and the end of the telescopic rod (44) is rotatably connected to the feeding barrel (4) to cooperate with the leg (42) to balance and support the feeding barrel (4); A cam (45) is fixed to the end of the rotating shaft (41), a compression spring (46) is fixedly sleeved on a position below the cam (45) on the support leg (42), a top ring (47) which is slidably sleeved on the support leg (42) is fixed to the top of the compression spring (46), and a protrusion which contacts the cam (45) is provided on the top of the top ring (47). When liquid metal is equally distributed at various positions in the diverting cylinder (5), the cam (45) overcomes the elastic force of the compression spring (46) and deflects, so that the feeding barrel (4) is deflected.

10. The multi-station flange casting mechanical device according to claim 9, characterized in that: The mechanical drive unit (8) comprises a push rod (81) having two ends rotatably connected to the base of the support leg (42) and the sealing ring (71) respectively, and the push rod (81) pushes the sealing ring (71) to move when the feed barrel (4) is tilted.

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