Casting forming die for engine flywheel casing

Abstract

The invention discloses an engine flywheel casing casting forming mold, and relates to the technical field of casting molds. The engine flywheel casing casting forming mold comprises a rack, a movable mold mechanism and a fixed mold mechanism, the movable mold mechanism comprises an upper mold plate and a forming mold core, a positioning pin is installed in the middle of the bottom of the forming mold core, a pouring opening is formed in the side of the top of the upper mold plate, and a guide strip is fixedly installed on the edge of the outer side of the upper mold plate; the fixed mold mechanism comprises a square hole and a lower mold block, a mold cavity is formed in the middle of the top of the lower mold block, a water inlet channel is formed in the position, close to the top, of the interior of the lower mold block, a water outlet channel is formed in the side, away from the water inlet channel, of the interior of the lower mold block, and a U-shaped water channel is formed in the interior of the lower mold block; ejecting assemblies are installed at the corresponding positions of the bottom of the lower die block, the purpose of stable operation is achieved, guiding can be conducted, die opening and closing are stable, cooling is promoted, and casting is convenient, safe and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of casting molds, and particularly to a casting mold for an engine flywheel housing. Background Art

[0002] With the continuous development of science and technology and the rapid progress of society, the application of engines is increasing. An engine is a machine that can convert other forms of energy into mechanical energy. Engines are divided into piston engines, ramjet engines, rocket engines, and turbine engines, and their working processes are intake, compression, fuel injection, combustion, expansion work, and exhaust. An engine is applicable to a power generating device or can refer to the entire machine including the power device. Engine flywheel housings are commonly made of materials such as gray cast iron and aluminum alloy. Gray cast iron has good wear resistance, shock absorption, and casting performance. When producing and processing an engine flywheel housing, a casting mold is required.

[0003] Currently, when traditional casting equipment is operating, vibrations are inevitable, resulting in unstable mold clamping of the casting mold, easy to shake, thus affecting the overall casting quality of the engine flywheel housing. In severe cases, defective products will appear, increasing the scrap rate. Summary of the Invention

[0004] (I) Technical Problems to be Solved Aiming at the deficiencies of the prior art, the present invention provides a casting mold for an engine flywheel housing, which solves the problems that when casting equipment is operating, vibrations are inevitable, resulting in unstable mold clamping of the casting mold, easy to shake, thus affecting the overall casting quality of the engine flywheel housing. In severe cases, defective products will appear, increasing the scrap rate.

[0005] (II) Technical Solutions To achieve the above objectives, the present invention is realized through the following technical solutions: A casting mold for an engine flywheel housing, comprising: A frame, on the top of which a bracket is fixedly installed, and in the middle of the top of the bracket, a hydraulic cylinder is fixedly installed; A moving mold mechanism, which is used for capping and pouring liquid materials, and the moving mold mechanism is installed at the telescopic end of the hydraulic cylinder; Among them, the moving die mechanism includes an upper template and a forming die core. The top of the upper template is fixedly installed with the telescopic end of a hydraulic cylinder. The forming die core is installed in the middle of the bottom of the upper template. A positioning pin is installed in the middle of the bottom of the forming die core. A pouring port is installed at the side of the top of the upper template. Guide bars are fixedly installed at the edge of the outside of the upper template. A cone is fixedly installed at the bottom end of the guide bar. By the contraction and extension of the telescopic end of the hydraulic cylinder, the upper template can be driven to move up and down, so that the upper template drives the forming die core to move up and down, which helps to open and close the die. Under the pressure of the telescopic end of the hydraulic cylinder, the molds after closing are closely attached together, which helps to cast and form the engine flywheel housing. A fixed die mechanism is used to cast and form the engine flywheel housing. The fixed die mechanism is installed in the middle of the top of the frame. Among them, the fixed die mechanism includes a square hole and a lower module. The square hole is opened at the top of the frame and close to the guide bar. The lower module is installed at the top of the frame and close to the square hole. A cavity is opened in the middle of the top of the lower module. A circular groove is opened in the middle of the bottom of the inner cavity of the cavity. A water inlet channel is opened at a position close to the top inside the lower module. A water outlet channel is opened at a side far from the water inlet channel inside the lower module. A U-shaped water channel is opened inside the lower module. The U-shaped water channel connects the water inlet channel and the water outlet channel. Ejector assemblies are installed at corresponding positions at the bottom of the lower module. When the upper template moves up and down, the guide bar can be driven to move together, and the guide bar passes through the center of the square hole, so that the upper template is supported and guided, so that the upper template drives the whole forming die core to run smoothly and reduces the influence of vibration.

[0006] Preferably, the guide bars are installed vertically. There are two guide bars, and the two guide bars are symmetrically installed along the forming die core. The tip of the cone faces upward.

[0007] Preferably, the guide bar passes through the middle of the square hole, and the position of the cavity corresponds to the position of the forming die core.

[0008] Preferably, the circular groove is opened directly below the positioning pin. The water inlet channel and the water outlet channel are at the same height. The U-shaped water channel is evenly opened inside the lower module. By moving the upper template and the forming die core downward, the positioning pin will move downward together with the forming die core. The upper template covers the top of the lower module, and the forming die core is embedded into the cavity, and the positioning pin is inserted into the circular groove, so that the forming die core can be supported and the whole forming die core is positioned. By using the closed annular cavity formed between the cavity and the forming die core, liquid material can be poured at the pouring port, and casting and forming can be carried out.

[0009] Preferably, the ejector assembly includes an ejector rod and a pusher block. The ejector rod is slidably mounted on the top of the frame near the lower module through a sliding sleeve. The top end of the ejector rod extends into the cavity. The bottom end of the pusher block is fixedly installed with the top end of the ejector rod. A connecting plate is fixedly installed at the bottom end of the ejector rod. A spring is fixedly installed between the top of the connecting plate and the top of the inner cavity of the frame near the ejector rod. A through hole is formed at one end of the connecting plate away from the ejector rod, and the position of the through hole corresponds to the position of the cone. In the initial state, by using the elastic force of the spring and under the sliding connection of the ejector rod, the connecting plate applies a downward force to the ejector rod, so that the pusher block is in close contact with the bottom of the inner cavity of the cavity, thus forming a seal and not easily leaking.

[0010] Preferably, the outer cylindrical surface of the ejector rod is slidably installed between the bottom of the lower module. The ejector rod passes through the center of the spring. After the casting is completed, by using the contraction of the telescopic end of the hydraulic cylinder, the upper template and the forming die core can be pulled upward to perform mold opening. And the guide strip will move upward with the upper template, which can drive the cone upward. Through the contact between the cone and the through hole, as the guide strip drives the cone to continuously move upward, the connecting plate receives an upward pushing force, and the ejector rod pushes the pusher block upward, so as to apply an upward pushing force to the engine flywheel housing in the cavity, facilitating the ejection of the engine flywheel housing and realizing material ejection.

[0011] Preferably, a liquid supply mechanism is installed inside the frame near the lower module. The liquid supply mechanism includes a liquid storage tank, which is installed at the side of the bottom of the inner cavity of the frame. A hopper is installed at the side of the top of the liquid storage tank. A liquid discharge port is installed at the side of the outer side of the hopper near the bottom. A pump body is installed at one end of the top of the frame away from the hopper. A liquid inlet pipe is connected between the liquid outlet end of the pump body and the liquid inlet end of the water inlet channel. A liquid return pipe is connected between the liquid outlet end of the water outlet channel and the liquid storage tank. An auxiliary component is installed at the liquid inlet of the pump body, and the auxiliary component is installed inside the liquid storage tank.

[0012] After the cavity casting is completed, the pump body can be started to work. The coolant in the liquid storage tank is sucked by the liquid inlet end of the pump body and conveyed through the liquid inlet pipe, so that the coolant enters the water inlet channel and evenly flows into the U-shaped water channel. Through the heat transfer principle, the U-shaped water channel absorbs the heat inside the lower module, and as the coolant enters the water outlet channel and is recycled by the liquid return pipe, the coolant returns to the liquid storage tank again. Such a cycle is formed to timely take out the heat, and thus the cast engine flywheel housing can be cooled.

[0013] Preferably, the position of the liquid inlet pipe corresponds to the position of the liquid return pipe, and the liquid inlet of the pump body is in a horn shape.

[0014] Preferably, the auxiliary component includes a V-shaped frame with an upward opening. The top end of the V-shaped frame is fixedly installed at the edge of the liquid inlet of the pump body. A connecting rotating shaft is rotatably installed at the center of the V-shaped frame. The bottom end of the connecting rotating shaft is rotatably installed at the bottom of the inner cavity of the liquid storage tank. An impeller blade is fixedly installed on the outer circular surface of the connecting rotating shaft near the liquid inlet of the pump body. A stirring plate is fixedly installed on the outer circular surface of the connecting rotating shaft near the bottom of the inner cavity of the liquid storage tank. When the liquid inlet end of the pump body sucks the coolant in the liquid storage tank, as the coolant is sucked in from the flared part of the liquid inlet of the pump body, the impeller blade is impacted by the fluid. Under the rotational support of the connecting rotating shaft, the impeller blade drives the connecting rotating shaft to rotate, so that the stirring plate is driven by the connecting rotating shaft to rotate. Then, the rotating stirring plate can stir the coolant in the liquid storage tank, mix the coolant flowing back into the liquid storage tank, and timely reduce the temperature of the coolant in the liquid storage tank, which helps with circulating cooling.

[0015] Preferably, the impeller blade is installed inside the liquid inlet of the pump body and is installed obliquely. The stirring plates are evenly installed on the outer circular surface of the connecting rotating shaft near the bottom of the inner cavity of the liquid storage tank.

[0016] (III) Beneficial Effects The present invention provides a casting mold for an engine flywheel housing, which has the following beneficial effects: (I). For this casting mold for the engine flywheel housing, by the contraction and elongation of the telescopic end of the hydraulic cylinder, the upper template can be driven to move up and down, and then the upper template drives the forming die core to move up and down, which helps with mold opening and closing. Under the pressure of the telescopic end of the hydraulic cylinder, the molds after clamping fit tightly together, which helps with the casting and forming of the engine flywheel housing.

[0017] (II). For this casting mold for the engine flywheel housing, when the upper template moves up and down, it can drive the guide bar to move together. The guide bar passes through the center of the square hole, so that the upper template is supported and guided, and then the upper template drives the forming die core to run smoothly as a whole, reducing the influence of vibration.

[0018] (III). For this casting mold for the engine flywheel housing, by covering the upper template on the top of the lower module, embedding the forming die core into the inner cavity of the cavity, and inserting the positioning pin into the circular groove, the forming die core can be supported and positioned as a whole. By using the closed annular cavity formed between the cavity and the forming die core, liquid material can be poured from the pouring port, and then casting and forming can be carried out.

[0019] (4) For the casting mold of the engine flywheel housing, in the initial state, by utilizing the elastic force of the spring and under the sliding connection of the ejector rod, the connecting plate applies a downward force to the ejector rod, so that the pushing block is in close contact with the bottom of the inner cavity of the mold cavity, thus forming a seal and not easily causing leakage.

[0020] (5) For the casting mold of the engine flywheel housing, the telescopic end of the hydraulic cylinder drives the upper template to move upward, so that the guiding strip will move upward together with the upper template, which can drive the cone to move upward. Through the contact between the cone and the through hole, as the guiding strip drives the cone to continuously move upward, the connecting plate receives an upward pushing force, and the ejector rod pushes the pushing block upward, thereby applying an upward pushing force to the engine flywheel housing in the mold cavity, facilitating the ejection of the engine flywheel housing and realizing the ejection of the material.

[0021] (6) For the casting mold of the engine flywheel housing, the liquid inlet end of the pump body sucks the coolant in the liquid storage tank, and through the transportation of the liquid inlet pipe, the coolant enters the water inlet channel and evenly flows into the U-shaped water channel. Through the principle of heat transfer, the U-shaped water channel absorbs the heat inside the lower module, and as the coolant enters the water outlet channel and is recycled by the liquid return pipe, the coolant returns to the liquid storage tank again, thus forming a cycle and taking out the heat in time, so as to cool the cast engine flywheel housing.

[0022] (7) For the casting mold of the engine flywheel housing, as the coolant is sucked in from the flared part of the liquid inlet of the pump body, the impeller blades are impacted by the fluid, and under the rotational support of the connecting rotating shaft, the impeller blades drive the connecting rotating shaft to rotate, so that the stirring plate is driven by the connecting rotating shaft to rotate, and the rotating stirring plate can be used to stir the coolant in the liquid storage tank, so as to mix the coolant flowing back into the liquid storage tank and timely reduce the temperature of the coolant in the liquid storage tank, which is helpful for circulating cooling. Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the overall structure of the casting mold of the engine flywheel housing of the present invention; Figure 2 It is a schematic diagram of the bottom view structure of the casting mold of the engine flywheel housing of the present invention; Figure 3 It is a schematic diagram of the connection structure between the moving mold mechanism and the hydraulic cylinder of the present invention; Figure 4 It is a schematic diagram of the connection structure between the fixed mold mechanism and the frame of the present invention; Figure 5 It is a schematic diagram of the internal sectional structure of the lower module of the present invention; Figure 6 It is a schematic diagram of the connection structure between the ejector assembly and the frame of the present invention; Figure 7 Schematic diagram of the overall structure of the ejector assembly of the present invention; Figure 8 Schematic diagram of the connection structure between the liquid supply mechanism and the frame of the present invention; Figure 9 Schematic diagram of the overall structure of the auxiliary assembly of the present invention.

[0024] In the figure: 1, frame; 2, bracket; 3, hydraulic cylinder; 4, moving die mechanism; 5, fixed die mechanism; 6, liquid supply mechanism; 41, upper template; 42, forming die core; 43, positioning pin; 44, pouring port; 45, guiding strip; 46, cone; 51, square hole; 52, lower module; 53, cavity; 54, circular groove; 55, water inlet channel; 56, water outlet channel; 57, U-shaped water channel; 58, ejector assembly; 581, ejector rod; 582, pushing block; 583, connecting plate; 584, spring; 585, through hole; 61, liquid storage tank; 62, hopper; 63, liquid discharge port; 64, pump body; 65, liquid inlet pipe; 66, liquid return pipe; 67, auxiliary assembly; 671, V-shaped frame; 672, connecting rotating shaft; 673, impeller blade; 674, stirring plate. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] The first embodiment is as Figures 1 - 3 shown. The present invention provides a technical solution: a casting and molding die for an engine flywheel housing, comprising: A frame 1, on the top of which a bracket 2 is fixedly installed, and in the middle of the top of the bracket 2, a hydraulic cylinder 3 is fixedly installed; A moving die mechanism 4, which is used for capping and pouring liquid materials, and the moving die mechanism 4 is installed at the telescopic end of the hydraulic cylinder 3; Among them, the moving die mechanism 4 includes an upper template 41 and a forming die core 42. The top of the upper template 41 is fixedly installed with the telescopic end of the hydraulic cylinder 3. The forming die core 42 is installed in the middle of the bottom of the upper template 41. A positioning pin 43 is installed in the middle of the bottom of the forming die core 42. A pouring port 44 is installed on the side of the top of the upper template 41. Guide bars 45 are fixedly installed on the outer edge of the upper template 41. A cone 46 is fixedly installed at the bottom end of the guide bar 45. The staff starts the hydraulic cylinder 3 to work. By using the contraction and elongation of the telescopic end of the hydraulic cylinder 3, the upper template 41 can be driven to move up and down, so as to drive the forming die core 42 to move up and down by the upper template 41, which helps to open and close the die. Under the pressure of the telescopic end of the hydraulic cylinder 3, the molds after clamping are closely attached together; The guide bars 45 are installed vertically. There are two guide bars 45, and the two guide bars 45 are symmetrically installed along the forming die core 42. The tip of the cone 46 faces upward.

[0027] The guide bar 45 passes through the middle of the square hole 51. The position of the cavity 53 corresponds to the position of the forming die core 42.

[0028] The second embodiment is as Figures 1 - 7 shown. On the basis of the first embodiment: The fixed die mechanism 5 is used for casting and forming the engine flywheel housing. The fixed die mechanism 5 is installed in the middle of the top of the frame 1; Among them, the fixed die mechanism 5 includes a square hole 51 and a lower module 52. The square hole 51 is opened at the top of the frame 1 and close to the guide bar 45. The lower module 52 is installed at the top of the frame 1 and close to the square hole 51. A cavity 53 is opened in the middle of the top of the lower module 52. A circular groove 54 is opened in the middle of the bottom of the inner cavity of the cavity 53. An inlet channel 55 is opened inside the lower module 52 and close to the top position. An outlet channel 56 is opened on one side of the lower module 52 far from the inlet channel 55. A U-shaped water channel 57 is opened inside the lower module 52. The U-shaped water channel 57 connects the inlet channel 55 and the outlet channel 56. Ejector assemblies 58 are installed at the corresponding positions at the bottom of the lower module 52. When the upper template 41 moves up and down, the guide bar 45 can be driven to move together, and the guide bar 45 is used to pass through the center of the square hole 51, so that the upper template 41 is supported and guided, so that the upper template 41 drives the forming die core 42 to run smoothly as a whole.

[0029] The circular groove 54 is opened directly below the positioning pin 43. The inlet channel 55 and the outlet channel 56 are at the same height. The U-shaped water channels 57 are evenly opened inside the lower module 52.

[0030] By moving the upper template 41 and the forming die core 42 downward, the positioning pin 43 will move downward together with the forming die core 42. The upper template 41 covers the top of the lower module 52, and the forming die core 42 is embedded into the interior of the cavity 53, and the positioning pin 43 is inserted into the circular groove 54, so as to support the forming die core 42 and position the whole forming die core 42. By using the closed annular cavity formed between the cavity 53 and the forming die core 42, liquid material can be poured at the movable pouring gate 44, and casting molding can be carried out.

[0031] The ejector assembly 58 includes an ejector rod 581 and a pusher block 582. The ejector rod 581 is slidably installed at the top of the frame 1 near the lower module 52 through a sliding sleeve. The top end of the ejector rod 581 extends into the interior of the cavity 53. The bottom end of the pusher block 582 is fixedly installed with the top end of the ejector rod 581. A connecting plate 583 is fixedly installed at the bottom end of the ejector rod 581. A spring 584 is fixedly installed between the top of the connecting plate 583 and the top of the inner cavity of the frame 1 near the ejector rod 581. A through hole 585 is formed at one end of the connecting plate 583 away from the ejector rod 581, and the position of the through hole 585 corresponds to the position of the cone 46. In the initial state, by using the elastic force of the spring 584 and under the sliding connection of the ejector rod 581, the connecting plate 583 applies a downward acting force to the ejector rod 581, so that the pusher block 582 is in close contact with the bottom of the inner cavity of the cavity 53, thus forming a seal and not easily leaking.

[0032] The outer cylindrical surface of the ejector rod 581 is slidably installed between the bottom of the lower module 52, and the ejector rod 581 passes through the center of the spring 584. After the casting molding is completed, by using the contraction of the telescopic end of the hydraulic cylinder 3, the upper template 41 and the forming die core 42 can be pulled upward to carry out mold opening, and the guiding strip 45 will move upward together with the upper template 41, so as to drive the cone 46 to move upward. By contacting the cone 46 with the through hole 585, as the guiding strip 45 drives the cone 46 to continuously move upward, the connecting plate 583 receives an upward pushing force, and the ejector rod 581 pushes the pusher block 582 to move upward, so as to apply an upward pushing force to the engine flywheel housing in the cavity 53, facilitating the ejection of the engine flywheel housing.

[0033] The third embodiment is as Figures 1 - 9 shown, on the basis of the first embodiment and the second embodiment: Inside the frame 1 and near the lower module 52, a liquid supply mechanism 6 is installed. The liquid supply mechanism 6 includes a liquid storage tank 61, which is installed at the side of the bottom of the inner cavity of the frame 1. At the side of the top of the liquid storage tank 61, a hopper 62 is installed. At the side of the outer side of the hopper 62 and near the bottom position, a liquid discharge port 63 is installed. At one end of the top of the frame 1 away from the hopper 62, a pump body 64 is installed. A liquid inlet pipe 65 is connected between the liquid outlet end of the pump body 64 and the liquid inlet end of the water inlet channel 55. A liquid return pipe 66 is connected between the liquid outlet end of the water outlet channel 56 and the liquid storage tank 61. An auxiliary component 67 is installed at the liquid inlet of the pump body 64, and the auxiliary component 67 is installed inside the liquid storage tank 61. After the cavity 53 is cast, the pump body 64 can be started to work. The coolant in the liquid storage tank 61 is sucked by the liquid inlet end of the pump body 64, and through the transportation of the liquid inlet pipe 65, the coolant enters the water inlet channel 55 and evenly flows into the U-shaped water channel 57. Through the principle of heat transfer, the U-shaped water channel 57 absorbs the heat inside the lower module 52, and as the coolant enters the water outlet channel 56, and under the recovery of the liquid return pipe 66, the coolant returns to the liquid storage tank 61 again, thus forming a cycle, taking out the heat in time, and cooling the cast engine flywheel housing.

[0034] The position of the liquid inlet pipe 65 corresponds to the position of the liquid return pipe 66, and the liquid inlet of the pump body 64 is in a flared shape.

[0035] The auxiliary component 67 includes a V-shaped frame 671. The opening of the V-shaped frame 671 faces upward, and the top of the V-shaped frame 671 is fixedly installed at the edge of the liquid inlet of the pump body 64. A connecting rotating shaft 672 is rotatably installed at the center of the V-shaped frame 671. The bottom end of the connecting rotating shaft 672 is rotatably installed at the bottom of the inner cavity of the liquid storage tank 61. An impeller blade 673 is fixedly installed on the outer cylindrical surface of the connecting rotating shaft 672 and near the liquid inlet of the pump body 64. A stirring plate 674 is fixedly installed on the outer cylindrical surface of the connecting rotating shaft 672 and near the bottom of the inner cavity of the liquid storage tank 61. When the liquid inlet end of the pump body 64 sucks the coolant in the liquid storage tank 61, as the coolant is sucked from the flared shape of the liquid inlet of the pump body 64, the impeller blade 673 is impacted by the fluid, and under the rotational support of the connecting rotating shaft 672, the impeller blade 673 drives the connecting rotating shaft 672 to rotate, so that the stirring plate 674 is driven by the connecting rotating shaft 672 to rotate, and the stirring plate 674 in rotation can stir the coolant in the liquid storage tank 61, mix the coolant flowing back into the liquid storage tank 61, timely reduce the temperature of the coolant in the liquid storage tank 61, and contribute to the circulating cooling.

[0036] The impeller blade 673 is installed inside the liquid inlet of the pump body 64, the impeller blade 673 is installed obliquely, and the stirring plates 674 are evenly installed on the outer cylindrical surface of the connecting rotating shaft 672 and near the bottom of the inner cavity of the liquid storage tank 61.

[0037] During use, first open the cover plate at the top of the hopper 62, inject an appropriate amount of coolant into the interior of the liquid storage tank 61 from the hopper 62, and then cover the cover plate; In the initial state, by using the elastic force of the spring 584 and under the sliding connection of the ejector rod 581, the connecting plate 583 applies a downward force to the ejector rod 581, so that the pushing block 582 is in close contact with the bottom of the inner cavity of the cavity 53, thus forming a seal; At this time, the staff starts the hydraulic cylinder 3 to work. By using the elongation of the telescopic end of the hydraulic cylinder 3, the upper template 41 can be driven to move downward, and then the upper template 41 drives the forming die core 42 to move downward; Moreover, when the upper template 41 moves up and down, it can drive the guide bar 45 to move together, and the guide bar 45 passes through the center of the square hole 51, so that the upper template 41 is supported and guided, and the upper template 41 drives the forming die core 42 to operate stably as a whole; And as the upper template 41 and the forming die core 42 move downward, the positioning pin 43 will move downward together with the forming die core 42. The upper template 41 covers the top of the lower module 52, and the forming die core 42 is embedded into the interior of the cavity 53, and the positioning pin 43 is inserted into the circular groove 54, so as to support the forming die core 42 and position the forming die core 42 as a whole. By forming a sealed annular cavity between the cavity 53 and the forming die core 42, and under the pressure of the telescopic end of the hydraulic cylinder 3, the upper template 41 and the lower module 52 after clamping are closely attached together. Then, liquid material can be poured at the pouring port 44, and casting molding can be carried out and pressure holding can be performed; When the casting of the cavity 53 is completed, the pump body 64 can be started to work. The coolant in the liquid storage tank 61 is sucked by the liquid inlet end of the pump body 64, and through the transportation of the liquid inlet pipe 65, the coolant enters the water inlet channel 55 and evenly flows into the U-shaped water channel 57. By the principle of heat transfer, the U-shaped water channel 57 absorbs the heat inside the lower module 52. Then, as the coolant enters the water outlet channel 56 and is recycled by the liquid return pipe 66, the coolant returns to the liquid storage tank 61 again. In this way, a cycle is formed, and the heat is taken out in time, so as to cool the cast engine flywheel housing; And when the liquid inlet end of the pump body 64 sucks the coolant in the liquid storage tank 61, as the coolant is sucked in from the flared portion of the liquid inlet of the pump body 64, the impeller blades 673 are impacted by the fluid. Under the rotational support of the connecting rotating shaft 672, the impeller blades 673 drive the connecting rotating shaft 672 to rotate. As a result, the stirring plate 674 is driven by the connecting rotating shaft 672 to rotate. Then, the rotating stirring plate 674 can be used to stir the coolant in the liquid storage tank 61, so as to mix the coolant flowing back into the liquid storage tank 61, timely reduce the temperature of the coolant in the liquid storage tank 61, and contribute to circulating cooling; After the casting is cooled, by contracting the telescopic end of the hydraulic cylinder 3, the upper template 41 and the forming die core 42 can be pulled upward to perform mold opening. And the guiding strip 45 will move upward together with the upper template 41, which can drive the cone 46 to move upward. Through the contact between the cone 46 and the through hole 585, as the guiding strip 45 drives the cone 46 to continuously move upward, the connecting plate 583 receives an upward pushing force, and the ejector rod 581 pushes the ejector block 582 to move upward, thereby applying an upward pushing force to the engine flywheel housing in the cavity 53, facilitating the ejection of the engine flywheel housing, and then the engine flywheel housing can be removed.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A casting mold for an engine flywheel housing, characterized in that: include: A frame (1), a bracket (2) being fixedly mounted on the top of the frame (1), and a hydraulic cylinder (3) being fixedly mounted in the middle of the top of the bracket (2); A movable mold mechanism (4), the movable mold mechanism (4) is used for sealing and pouring liquid materials, and the movable mold mechanism (4) is installed at the telescopic end of the hydraulic cylinder (3); The movable mold mechanism (4) comprises an upper mold plate (41) and a molding mold core (42), the top of the upper mold plate (41) is fixedly mounted to the telescopic end of the hydraulic cylinder (3), the molding mold core (42) is mounted in the middle of the bottom of the upper mold plate (41), a positioning pin (43) is mounted in the middle of the bottom of the molding mold core (42), a pouring port (44) is mounted on the side of the top of the upper mold plate (41), a guide strip (45) is fixedly mounted on the outer edge of the upper mold plate (41), and a cone (46) is fixedly mounted on the bottom end of the guide strip (45); A fixed mold mechanism (5), the fixed mold mechanism (5) is used for casting the engine flywheel housing, and the fixed mold mechanism (5) is installed in the middle of the top of the frame (1); The fixed mold mechanism (5) comprises a square hole (51) and a lower mold block (52), wherein the square hole (51) is provided at the top of the frame (1) and close to the guide strip (45), and the lower mold block (52) is installed at the top of the frame (1) and close to the square hole (51). A cavity (53) is provided in the middle of the top of the lower mold block (52), and a circular groove (54) is provided in the middle of the bottom of the inner cavity of the cavity (53). A water inlet channel (55) is provided inside the lower mold block (52) and close to the top. A water outlet channel (56) is provided inside the lower mold block (52) and on a side away from the water inlet channel (55). A U-shaped water channel (57) is provided inside the lower mold block (52), and the U-shaped water channel (57) connects the water inlet channel (55) with the water outlet channel (56). A material ejection assembly (58) is installed at corresponding positions on the bottom of the lower mold block (52).

2. The engine flywheel housing casting mold according to claim 1, characterized in that: The guide strip (45) is installed vertically, there are two guide strips (45), and the two guide strips (45) are installed symmetrically along the molding die core (42), and the tip of the cone (46) faces upward.

3. The engine flywheel housing casting mold according to claim 1, characterized in that: The guide strip (45) passes through the middle of the square hole (51), and the position of the cavity (53) corresponds to the position of the molding die core (42).

4. The engine flywheel housing casting mold according to claim 1, characterized in that: The circular groove (54) is opened directly below the positioning pin (43), the water inlet channel (55) and the water outlet channel (56) are at the same height, and the U-shaped water channel (57) is evenly opened inside the lower module (52).

5. The engine flywheel housing casting mold according to claim 1, characterized in that: The ejection assembly (58) comprises an ejection rod (581) and a push block (582); the ejection rod (581) is slidably mounted on the top of the frame (1) and close to the lower module (52) via a sliding sleeve; the top end of the ejection rod (581) extends into the interior of the cavity (53); the bottom end of the push block (582) is fixedly mounted on the top end of the ejection rod (581); a connecting plate (583) is fixedly mounted on the bottom end of the ejection rod (581); a spring (584) is fixedly mounted between the top of the connecting plate (583) and the top of the inner cavity of the frame (1) and close to the ejection rod (581); a through hole (585) is formed at one end of the connecting plate (583) away from the ejection rod (581); the position of the through hole (585) corresponds to the position of the cone (46).

6. The engine flywheel housing casting mold according to claim 5, characterized in that: The outer cylindrical surface of the ejecting rod (581) is slidably mounted between the bottom of the lower module (52), and the ejecting rod (581) passes through the center of the spring (584).

7. The engine flywheel housing casting mold according to claim 1, characterized in that: A liquid supply mechanism (6) is installed inside the frame (1) and near the lower module (52). The liquid supply mechanism (6) comprises a night storage box (61). The night storage box (61) is installed at the side of the bottom of the inner cavity of the frame (1). A hopper (62) is installed at the side of the top of the night storage box (61). A liquid discharge port (63) is installed at the side of the outer side of the hopper (62) and near the bottom. A pump body (64) is installed at the top of the frame (1) and at one end away from the hopper (62). A liquid inlet pipe (65) is connected between the liquid outlet end of the pump body (64) and the liquid inlet end of the water inlet channel (55). A liquid return pipe (66) is connected between the liquid outlet end of the water outlet channel (56) and the night storage box (61). An auxiliary component (67) is installed at the liquid inlet of the pump body (64). The auxiliary component (67) is installed inside the night storage box (61).

8. The engine flywheel housing casting mold according to claim 7, characterized in that: The position of the liquid inlet pipe (65) corresponds to the position of the liquid return pipe (66), and the liquid inlet of the pump body (64) is trumpet-shaped.

9. The engine flywheel housing casting mold according to claim 7, characterized in that: The auxiliary component (67) comprises a V-shaped frame (671), the opening of the V-shaped frame (671) is upward, and the top end of the V-shaped frame (671) is fixedly mounted on the edge of the liquid inlet of the pump body (64), a connecting shaft (672) is rotatably mounted at the center of the V-shaped frame (671), and the bottom end of the connecting shaft (672) is rotatably mounted on the bottom of the inner cavity of the night storage box (61), an impeller blade (673) is fixedly mounted on the outer circumferential surface of the connecting shaft (672) near the liquid inlet of the pump body (64), and a stirring plate (674) is fixedly mounted on the outer circumferential surface of the connecting shaft (672) near the bottom of the inner cavity of the night storage box (61).

10. The engine flywheel housing casting mold according to claim 9, characterized in that: The impeller blade (673) is installed inside the liquid inlet of the pump body (64). The impeller blade (673) is installed at an angle. The stirring plate (674) is evenly installed on the outer cylindrical surface connected to the rotating shaft (672) and close to the bottom of the inner cavity of the night storage box (61).

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