A precision casting device for double-layer elbow castings

Abstract

The present invention discloses a precision casting device for double-layer curved pipe castings, which relates to the technical field of welding equipment and includes a machine body, an upper mold assembly, and a lower mold assembly. The upper mold assembly includes a hydraulic cylinder, a movable mold is fixedly installed at the output end of the hydraulic cylinder, a gate assembly is installed on the top of the movable mold, and a rectangular locking block is fixedly installed in the middle of the outer side of the movable mold. The lower mold assembly includes a fixed mold and a circular through hole, the circular through hole is opened in the middle of the interior of the fixed mold, and a rectangular limiting frame is fixedly installed in the middle of the outer side of the fixed mold. The position of the circular through hole corresponds to the position of the rectangular limiting frame. A U-shaped card slot is opened on the top of the rectangular limiting frame, the opening of the U-shaped card slot is upward, the U-shaped card slot is opened directly below the rectangular locking block, and a flexible pad is fixedly installed at the bottom of the inner cavity of the U-shaped card slot. The precision casting device for double-layer curved pipe castings achieves an anti-swaying effect, the mechanism operates smoothly, reduces the influence of external forces and vibrations, is safe and reliable, and ensures high casting quality.

Description

Technical Field

[0001] The invention relates to the technical field of casting equipment, in particular to a precision casting device for a double-layer bent pipe casting. Background Art

[0002] Casting is a processing method in which metal is melted and poured into a pre-made mold, and the desired workpiece or blank is obtained through condensation and cleaning. Casting is an important and basic process method commonly used in machine manufacturing. The raw materials used for casting are widely available, the production cost is low, the process flexibility is large, and it is not limited by the size of the parts or the complexity of the shape and structure. There are many known casting methods, such as gravity casting, low-pressure casting, die casting, extrusion casting, and thixotropic casting. In any casting method, the molten metal is poured into the mold cavity of the casting model and solidified into a predetermined shape. The casting method can be selected according to the material of the molten metal and the product to be cast. When processing elbows, the blank of the elbow needs to be cast in the early stage, and then a casting device is needed for the casting process.

[0003] At present, when the existing casting device is performing the casting process, the equipment will inevitably generate vibration, which makes the casting mechanism susceptible to the influence of external force and vibration, and further causes the casting device to shake, affecting the casting quality of the bent pipe. Summary of the Invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A double-layer elbow casting precision casting device, comprising:

[0005] The machine body and the gate assembly are provided with a supporting frame, a cover plate is fixedly installed on the side of the machine body, and a supporting frame is fixedly installed on the side of the top of the machine body;

[0006] An upper mold assembly, which is used to move up and down to open and close the mold, and is installed on the top of the support frame;

[0007] Wherein, the upper mold assembly includes a hydraulic cylinder, which is fixedly installed in the middle of the top of the support frame, and the hydraulic cylinder is installed just above the machine body. The output end of the hydraulic cylinder is fixedly installed with a movable mold, and the gate assembly is installed on the top of the movable mold. A rectangular locking block is fixedly installed in the middle of the outer side of the movable mold, and the bottom end of the rectangular locking block is a semicircular curved surface. The movable mold can be driven to move by the extension and contraction of the output end of the hydraulic cylinder, and then the movable mold can be driven to move downward and upward, thereby adjusting the height of the movable mold. The movable mold is moved downward to facilitate mold closing, and the movable mold is moved upward to facilitate mold opening.

[0008] The double-layer elbow casting precision casting device also includes:

[0009] A lower mold assembly is used to match the upper mold and the lower mold and stabilize the mechanism. The lower mold assembly is installed in the middle of the top of the machine body;

[0010] In which, the lower mold assembly includes a fixed mold and a circular through hole, the bottom of the fixed mold is fixedly installed in the middle of the top of the machine body, the movable mold is installed directly below the fixed mold, the circular through hole is opened in the middle of the inside of the fixed mold, and the circular through hole passes through the fixed mold, and a rectangular limit frame is fixedly installed in the middle of the outer side of the fixed mold, the position of the circular through hole corresponds to the position of the rectangular limit frame, and a U-shaped slot is opened on the top of the rectangular limit frame, the opening of the U-shaped slot is upward, and the U-shaped slot is opened directly below the rectangular locking block, and a flexible pad is fixedly installed on the bottom of the inner cavity of the U-shaped slot, and the rectangular locking block is embedded in the inside of the U-shaped slot. At this time, the flexible pad is compressed, so that the flexible pad fills the gap between the rectangular locking block and the U-shaped slot. At this time, the movable mold is adapted to the fixed mold, so that the movable mold and the fixed mold are locked, and it is not easy to shake, which is conducive to the coordinated casting between the movable mold and the fixed mold.

[0011] Preferably, the hydraulic cylinder is installed directly above the movable mold, so that the movable mold can be moved by using the output end of the hydraulic cylinder. Two hydraulic cylinders are installed, and the two hydraulic cylinders are symmetrically installed along the gate assembly. The rectangular locking blocks are evenly distributed in the middle of the outer side of the movable mold. Two symmetrical hydraulic cylinders can be used to apply driving force to the movable mold together, so that the force on the movable mold is balanced.

[0012] Preferably, the bottom of the inner cavity of the U-shaped slot is a semicircular concave surface, and the material of the flexible pad is rubber, which is convenient for deformation after being subjected to extrusion force.

[0013] When the movable mold moves downward, it will enter the interior of the rectangular limit frame. At this time, the rectangular limit frame limits and guides the movable mold, making it less likely for the rectangular limit frame to deviate, thereby ensuring high casting quality between the movable mold and the fixed mold.

[0014] Preferably, the circular through holes are opened at a position close to the top of the fixed mold, and the circular through holes are evenly distributed inside the fixed mold, so as to facilitate heat transfer and accelerated cooling.

[0015] Preferably, the gate assembly includes a rectangular base, which is fixed to the side of the top of the movable mold by screws, a zigzag casting square tube is fixedly installed in the middle of the top of the rectangular base, a conical hopper is installed on the top of the zigzag casting square tube, and a defoaming module is installed in the middle of the inside of the zigzag casting square tube. With the support of the rectangular base and the zigzag casting square tube and under the connection of the conical hopper, the fluid material is poured from the top of the conical hopper, and the opening of the conical hopper gradually increases from bottom to top, thereby facilitating the pouring of the fluid material.

[0016] Preferably, the rectangular base is installed directly below the zigzag casting square tube, and the opening of the conical hopper gradually increases from bottom to top, which is convenient for pouring fluid materials and not easy to scatter.

[0017] The zigzag casting square tube is installed inside the zigzag casting square tube to reduce the flow of fluid material inside the zigzag casting square tube, thereby avoiding the influx of a large amount of fluid material, thereby reducing the air wrapped in the fluid material from entering the cavity between the movable mold and the fixed mold, thereby reducing the impact of bubbles.

[0018] Preferably, the defoaming module includes a flat zigzag plate, the top of which is fixedly mounted on the middle of the inner wall of the zigzag cast square tube, a triangular puncture piece is fixedly mounted on the bend of the outer side of the flat zigzag plate, and a first scraper and a second scraper are fixedly mounted on the bottom of the flat zigzag plate, respectively. With the tip of the triangular puncture piece facing outward, bubbles wrapped in the fluid material come into contact with the tip of the triangular puncture piece, thereby puncturing and bursting the bubbles and discharging the air in time.

[0019] At the same time, the first scraper teeth and the second scraper teeth can slow down the flow, thereby controlling the flow rate of the fluid material.

[0020] Preferably, the first scraper teeth and the second scraper teeth are both arc-shaped, which can reduce the resistance to the flow of fluid materials, and the first scraper teeth and the second scraper teeth are evenly distributed on the bottom of the flat zigzag plate, which is convenient for slowing the flow of fluid materials.

[0021] Preferably, a cooling mechanism is installed inside the machine body, and the cooling mechanism is installed just below the fixed mold. The cooling mechanism includes a liquid storage tank and a water channel. The liquid storage tank is fixedly installed at the bottom of the inner cavity of the machine body. The water channel is opened inside the fixed mold and close to the bottom. The water channel is curved. A pump body is fixedly installed on the side of the liquid storage tank. The liquid outlet end of the pump body is connected to a first hose. The side of the top of the liquid storage tank is connected to a second hose. The two ends of the water channel are respectively connected to a water inlet pipe and a water outlet pipe. The bottom end of the water pipe is connected to the top end of the first hose, and the bottom end of the water outlet pipe is connected to the top end of the second hose. A material port is installed on the top of the liquid storage tank. The liquid inlet end of the pump body is used to suck out part of the coolant stored in the liquid storage tank, and the coolant is transported to the inside of the water channel through the first hose and the water inlet pipe. The water channel is curved, so that the coolant inside the water channel increases the contact area with the fixed mold. In combination with the heat transfer principle, the coolant inside the water channel absorbs the heat generated by the fixed mold casting, thereby accelerating the cooling.

[0022] The water channel and the liquid storage tank are connected by a second hose and a water outlet pipe. At this time, the coolant in the water channel can flow back into the liquid storage tank again. In this way, the fixed mold can be quickly cooled by the coolant circulation, which helps to cool the casting material and quickly dissipate the heat absorbed by the coolant.

[0023] Preferably, the liquid inlet end of the pump body passes through the outside of the liquid storage tank and extends into the interior thereof, so that the coolant in the liquid storage tank can be sucked out by using the liquid inlet end of the pump body. The feed port is installed at a position close to the pump body, so that the coolant can be injected into the feed port from the cover plate.

[0024] The fixed mold is cooled by the coolant inside the water channel and the heat is transferred by the rectangular limit frame. At this time, the heat inside the movable mold is conducted, and the circular through hole penetrates the fixed mold. At this time, the cold air inside the circular through hole floats out from the end and makes contact with the movable mold, thereby accelerating the dissipation of heat, so that the same overall structure can achieve different functions, and the interaction between the structures is utilized to fully connect the structures together.

[0025] The present invention provides a precision casting device for double-layer elbow castings. It has the following beneficial effects:

[0026] 1. In the precision casting device for double-layer elbow castings, the staff starts the hydraulic cylinder to work. The movable mold can be driven to move by the extension and contraction of the output end of the hydraulic cylinder, and then the movable mold can be driven to move downward and upward, and then the height of the movable mold can be adjusted. The movable mold is moved downward to facilitate mold closing, and the movable mold is moved upward to facilitate mold opening.

[0027] 2. The precision casting device for double-layer bent pipe castings uses a rectangular locking block embedded in the interior of the U-shaped slot. At this time, the flexible pad is compressed, so that the flexible pad fills the gap between the rectangular locking block and the U-shaped slot. At this time, the movable mold and the fixed mold are adapted, so that the movable mold and the fixed mold are locked, and it is not easy to shake, which helps the movable mold and the fixed mold to cooperate in casting.

[0028] 3. In the precision casting device for double-layer bent pipe castings, when the movable mold moves downward, the movable mold will enter the interior of the rectangular limit frame. At this time, the rectangular limit frame limits and guides the movable mold, making it less likely for the rectangular limit frame to deviate, thereby ensuring high casting quality between the movable mold and the fixed mold.

[0029] Fourth, the precision casting device for double-layer curved pipe castings utilizes the support of a rectangular base and a zigzag casting square pipe, and under the connection of a conical hopper, pours the fluid material from the top of the conical hopper, and combines the conical hopper with a gradually increasing opening from bottom to top, thereby facilitating the pouring of the fluid material.

[0030] 5. The double-layer curved pipe casting precision casting device, when installed inside the zigzag casting square tube using the zigzag casting square tube, reduces the flow of fluid material inside the zigzag casting square tube, thereby avoiding a large amount of fluid material from pouring in, thereby reducing the fluid material wrapped in air entering the cavity between the movable mold and the fixed mold, thereby reducing the impact of bubbles.

[0031] 6. The precision casting device for double-layer elbow castings uses the tip of the triangular puncture piece to face outward. At this time, the bubbles wrapped in the fluid material come into contact with the tip of the triangular puncture piece, causing the bubbles to be punctured and burst, and the air to be discharged in time. At the same time, the first scraper and the second scraper can play a role in slowing down the flow, thereby controlling the flow rate of the fluid material.

[0032] 7. The precision casting device for double-layer elbow castings utilizes the curved shape of the water channel so that the coolant inside the water channel increases the contact area with the fixed mold. Combined with the principle of heat transfer, the coolant inside the water channel absorbs the heat generated by the fixed mold casting, thereby accelerating the cooling. The coolant in the water channel can flow back into the liquid storage tank through the second hose and the outlet pipe. In this way, the fixed mold can be quickly cooled through the circulation of the coolant, which helps to cool the casting material and quickly dissipate the heat absorbed by the coolant.

[0033] 8. The precision casting device for double-layer elbow castings uses the coolant inside the water channel to cool the fixed mold and uses the heat transfer of the rectangular limit frame. At this time, the heat inside the movable mold is conducted, and the circular through hole penetrates the fixed mold. At this time, the cold air inside the circular through hole floats out from the end and makes the cold air contact with the movable mold, thereby accelerating the dissipation of heat, and then using the same overall structure to achieve different functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the overall structure of the precision casting device for double-layer elbow castings of the present invention;

[0035] Figure 2 This is a bottom view of the structure of the precision casting device for double-layer elbow castings of the present invention;

[0036] Figure 3 This is a schematic diagram of the mold closing structure of the upper mold assembly and the lower mold assembly of the present invention;

[0037] Figure 4 This is a schematic diagram of the internal structure of the rectangular limit frame cross section of the present invention;

[0038] Figure 5 Schematic diagram of the connection structure between the gate assembly and the movable mold of the present invention;

[0039] Figure 6 Schematic diagram of the internal structure of the rectangular base and the zigzag cast square tube section of the present invention;

[0040] Figure 7 This is a schematic diagram of the overall structure of the defoaming module of the present invention;

[0041] Figure 8 Schematic diagram of the connection structure between the cooling mechanism and the machine body of the present invention;

[0042] Figure 9 This is a schematic diagram of the overall structure of the cooling mechanism of the present invention;

[0043] Figure 10 Schematic diagram of the cross-sectional structure of the waterway of the present invention;

[0044] In the figure: 1. Machine body; 2. Gate assembly; 3. Cover plate; 4. Support frame; 5. Upper mold assembly; 6. Lower mold assembly; 7. Cooling mechanism; 21. Rectangular base; 22. Zigzag casting square tube; 23. Conical hopper; 24. Defoaming module; 241. Flat zigzag plate; 242. Triangular puncture piece; 243. First scraper; 244. Second scraper; 51. Hydraulic cylinder; 52. Moving mold; 53. Rectangular locking block; 61. Fixed mold; 62. Circular through hole; 63. Rectangular limit frame; 64. U-shaped slot; 65. Flexible pad; 71. Liquid storage tank; 72. Water channel; 73. Pump body; 74. First hose; 75. Second hose; 76. Water inlet pipe; 77. Water outlet pipe; 78. Material port. DETAILED DESCRIPTION

[0045] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described to better illustrate the principles of the invention and its practical application, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for specific applications.

[0046] The first embodiment, as Figure 1-Figure 4 As shown, the present invention provides a technical solution: a double-layer elbow casting precision casting device, comprising:

[0047] The machine body 1 and the gate assembly 2, the machine body 1 has a supporting frame, a cover plate 3 is fixedly installed on the side of the machine body 1, and a support frame 4 is fixedly installed on the side of the top of the machine body 1;

[0048] An upper mold assembly 5, which is used to move up and down to open and close the mold, and is installed on the top of the support frame 4;

[0049] Among them, the upper mold assembly 5 includes a hydraulic cylinder 51, which is fixedly installed in the middle of the top of the support frame 4. The hydraulic cylinder 51 is installed just above the machine body 1. The output end of the hydraulic cylinder 51 is fixedly installed with a movable mold 52. The gate assembly 2 is installed on the top of the movable mold 52. A rectangular locking block 53 is fixedly installed in the middle of the outer side of the movable mold 52. The bottom end of the rectangular locking block 53 is a semicircular curved surface. The staff turns on the hydraulic cylinder 51 to work. The movable mold 52 can be driven to move by the extension and contraction of the output end of the hydraulic cylinder 51, and then the movable mold 52 can be driven to move downward and upward, thereby adjusting the height of the movable mold 52. The movable mold 52 is moved downward to facilitate mold closing, and the movable mold 52 is moved upward to facilitate mold opening.

[0050] The hydraulic cylinder 51 is installed directly above the movable mold 52, so that the movable mold 52 can be moved by using the output end of the hydraulic cylinder 51. Two hydraulic cylinders 51 are installed, and the two hydraulic cylinders 51 are symmetrically installed along the gate assembly 2. The rectangular locking blocks 53 are evenly distributed in the middle of the outer side of the movable mold 52. The two symmetrical hydraulic cylinders 51 can be used to apply driving force to the movable mold 52 together, so that the movable mold 52 is subjected to balanced force.

[0051] The double-layer elbow casting precision casting device also includes:

[0052] The lower mold assembly 6 is used to adapt between the upper mold and the lower mold and make the mechanism stable. The lower mold assembly 6 is installed in the middle of the top of the body 1;

[0053] Among them, the lower mold assembly 6 includes a fixed mold 61 and a round through hole 62. The bottom of the fixed mold 61 is fixedly installed in the middle of the top of the body 1. The movable mold 52 is installed just below the fixed mold 61. The round through hole 62 is opened in the middle of the inside of the fixed mold 61, and the round through hole 62 passes through the fixed mold 61. A rectangular limit frame 63 is fixedly installed in the middle of the outer side of the fixed mold 61. The position of the round through hole 62 corresponds to the position of the rectangular limit frame 63. A U-shaped card slot 64 is opened on the top of the rectangular limit frame 63. The opening of the U-shaped card slot 64 is upward. The U-shaped card slot 64 is opened at Directly below the rectangular locking block 53, a flexible pad 65 is fixedly installed at the bottom of the inner cavity of the U-shaped slot 64. When the output end of the hydraulic cylinder 51 pushes the movable mold 52 downward, the rectangular locking block 53 is embedded into the interior of the U-shaped slot 64. At this time, the flexible pad 65 is compressed, and the flexible pad 65 fills the gap between the rectangular locking block 53 and the U-shaped slot 64. At this time, the movable mold 52 is adapted to the fixed mold 61, and the movable mold 52 and the fixed mold 61 are locked, which is less likely to shake, and helps the movable mold 52 and the fixed mold 61 to cooperate in casting.

[0054] The bottom of the inner cavity of the U-shaped slot 64 is a semicircular concave surface, and the material of the flexible pad 65 is rubber, which is easy to deform after being squeezed.

[0055] The round through holes 62 are opened near the top of the fixed mold 61 and are evenly distributed inside the fixed mold 61 to facilitate heat transfer and accelerated cooling.

[0056] When the movable mold 52 moves downward, the movable mold 52 will enter the interior of the rectangular limit frame 63. At this time, the rectangular limit frame 63 limits and guides the movable mold 52, making it less likely for the rectangular limit frame 63 to deviate, thereby ensuring high casting quality between the movable mold 52 and the fixed mold 61.

[0057] The second embodiment, as Figure 1-Figure 7 As shown, based on the first embodiment:

[0058] The gate assembly 2 includes a rectangular base 21, which is fixed to the side of the top of the movable mold 52 by screws. A zigzag casting square tube 22 is fixedly installed in the middle of the top of the rectangular base 21, and a conical hopper 23 is installed on the top of the zigzag casting square tube 22. A defoaming module 24 is installed in the middle of the inside of the zigzag casting square tube 22. With the support of the rectangular base 21 and the zigzag casting square tube 22 and under the connection of the conical hopper 23, the fluid material is poured from the top of the conical hopper 23, and the opening of the conical hopper 23 gradually increases from bottom to top, thereby facilitating the pouring of the fluid material.

[0059] The rectangular base 21 is installed just below the zigzag casting square pipe 22, and the opening of the conical hopper 23 gradually increases from bottom to top, making it easy to pour in the fluid material without spilling it.

[0060] When the fluid material enters the zigzag casting square tube 22, the zigzag casting square tube 22 is installed inside the zigzag casting square tube 22, thereby reducing the flow of the fluid material inside the zigzag casting square tube 22, thereby avoiding a large amount of fluid material from pouring in, thereby reducing the fluid material-wrapped air from entering the cavity between the movable mold 52 and the fixed mold 61, thereby reducing the impact of bubbles.

[0061] The defoaming module 24 includes a flat zigzag plate 241, the top of which is fixedly installed in the middle of the inner wall of the zigzag cast square tube 22, and a triangular puncture piece 242 is fixedly installed at the bend of the outer side of the flat zigzag plate 241, and a first scraper 243 and a second scraper 244 are fixedly installed at the bottom of the flat zigzag plate 241 respectively. When the fluid material inside the zigzag cast square tube 22 flows downward, the tip of the triangular puncture piece 242 is facing outward. At this time, the bubbles wrapped in the fluid material come into contact with the tip of the triangular puncture piece 242, so that the bubbles are punctured and burst, and the air is discharged in time. At the same time, the first scraper 243 and the second scraper 244 can play a role in slowing down the flow, thereby controlling the flow rate of the fluid material.

[0062] The first scraping teeth 243 and the second scraping teeth 244 are both arc-shaped, which can reduce the resistance to the flow of fluid materials. The first scraping teeth 243 and the second scraping teeth 244 are evenly distributed on the bottom of the flat zigzag plate 241, which is convenient for slowing the flow of fluid materials.

[0063] The third embodiment, as Figures 1-10 As shown, based on the first and second embodiments:

[0064] A cooling mechanism 7 is installed inside the body 1, and the cooling mechanism 7 is installed just below the fixed mold 61. The cooling mechanism 7 includes a liquid storage tank 71 and a water channel 72. The liquid storage tank 71 is fixedly installed at the bottom of the inner cavity of the body 1. The water channel 72 is opened inside the fixed mold 61 and close to the bottom. The water channel 72 is curved. A pump body 73 is fixedly installed on the side of the liquid storage tank 71. The liquid outlet end of the pump body 73 is connected to a first hose 74. The side of the top of the liquid storage tank 71 is connected to a second hose 75. The two ends of the water channel 72 are respectively connected to a water inlet pipe 76 and a water outlet pipe 77. The bottom end of the water inlet pipe 76 is connected to the top of the first hose 74. The ends are connected, the bottom end of the water outlet pipe 77 is connected to the top end of the second hose 75, and a material port 78 is installed on the top of the liquid storage tank 71. The staff starts the pump body 73 to work, and uses the liquid inlet end of the pump body 73 to suck out part of the coolant stored in the liquid storage tank 71, and transports the coolant to the inside of the water channel 72 through the first hose 74 and the water inlet pipe 76. The water channel 72 is curved, so that the coolant inside the water channel 72 increases the contact area with the fixed mold 61. Combined with the principle of heat transfer, the coolant inside the water channel 72 absorbs the heat generated by the casting of the fixed mold 61, thereby accelerating the cooling;

[0065] The water channel 72 is connected to the liquid storage tank 71 by using the second hose 75 and the outlet pipe 77. At this time, the coolant in the water channel 72 can flow back into the liquid storage tank 71 again. In this way, the fixed mold 61 can be quickly cooled by the coolant circulation, which helps to cool the casting material and quickly dissipate the heat absorbed by the coolant.

[0066] The liquid inlet end of the pump body 73 passes through the outside of the liquid storage tank 71 and extends into the interior thereof, so that the coolant in the liquid storage tank 71 can be sucked out by using the liquid inlet end of the pump body 73. The feed port 78 is installed near the pump body 73 to facilitate the injection of coolant into the feed port 78 from the cover plate 3.

[0067] The fixed mold 61 is cooled by the coolant inside the water channel 72, and the heat is transferred by the rectangular limit frame 63. At this time, the heat inside the movable mold 52 is conducted, and the circular through hole 62 passes through the fixed mold 61. At this time, the cold air inside the circular through hole 62 floats out from the end and makes the cold air contact with the movable mold 52, thereby accelerating the dissipation of heat.

[0068] When in use, the staff first opens the cover plate 3 and injects an appropriate amount of coolant into the liquid storage tank 71 from the material port 78, and then installs the cover plate 3. At this time, the staff starts the hydraulic cylinder 51 to work. By extending the output end of the hydraulic cylinder 51, the movable mold 52 is driven to move, and the movable mold 52 is driven to move downward, thereby adjusting the height of the movable mold 52. The movable mold 52 moves downward to facilitate mold closing.

[0069] The rectangular locking block 53 is inserted into the U-shaped slot 64, and the flexible pad 65 is compressed, so that the flexible pad 65 fills the gap between the rectangular locking block 53 and the U-shaped slot 64. At this time, the movable mold 52 and the fixed mold 61 are adapted to each other, and the movable mold 52 and the fixed mold 61 are locked, which is not easy to shake.

[0070] At this time, the rectangular base 21 and the zigzag casting square tube 22 are used for support, and the conical hopper 23 is used for connection to pour the fluid material from the top of the conical hopper 23. The opening of the conical hopper 23 gradually increases from bottom to top, thereby facilitating the pouring of the fluid material. At the same time, when the fluid material enters the zigzag casting square tube 22, the zigzag casting square tube 22 is installed inside the zigzag casting square tube 22, thereby reducing the flow rate of the fluid material inside the zigzag casting square tube 22, thereby avoiding a large amount of fluid material from pouring in, thereby reducing the amount of air wrapped in the fluid material entering the cavity between the movable mold 52 and the fixed mold 61, thereby reducing the influence of bubbles.

[0071] When the fluid material inside the zigzag casting square tube 22 flows downward, the tip of the triangular puncture piece 242 is directed outward, and the bubbles contained in the fluid material come into contact with the tip of the triangular puncture piece 242, thereby puncturing and bursting the bubbles, and the air is discharged in time. At the same time, the first scraper 243 and the second scraper 244 can play a role in slowing down the flow, thereby controlling the flow speed of the fluid material, and the fluid material enters the cavity between the movable mold 52 and the fixed mold 61 under the guidance of the zigzag casting square tube 22 for casting;

[0072] After the casting is completed, the staff starts the pump body 73 to work, and uses the liquid inlet end of the pump body 73 to suck out part of the coolant stored in the liquid storage tank 71, and transports the coolant to the inside of the water channel 72 through the first hose 74 and the water inlet pipe 76. The water channel 72 is curved, so that the coolant in the water channel 72 increases the contact area with the fixed mold 61. In combination with the heat transfer principle, the coolant in the water channel 72 absorbs the heat generated by the casting of the fixed mold 61, thereby accelerating the cooling.

[0073] The water channel 72 is connected to the liquid storage tank 71 by a second hose 75 and a water outlet pipe 77. At this time, the coolant in the water channel 72 can flow back into the liquid storage tank 71. In this way, the fixed mold 61 can be quickly cooled by the coolant circulation, which helps to cool the casting material and quickly dissipate the heat absorbed by the coolant.

[0074] At the same time, the fixed mold 61 is cooled by the coolant in the water channel 72, and the heat transfer from the rectangular limit frame 63 is utilized. At this time, the heat inside the movable mold 52 is conducted, and the circular through hole 62 penetrates the fixed mold 61. At this time, the cold air inside the circular through hole 62 floats out from the end and contacts the movable mold 52, thereby accelerating the heat dissipation.

[0075] When cooling is completed, the output end of the hydraulic cylinder 51 can be retracted to lift the movable mold 52 to open the mold and remove the casting.

[0076] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without making creative efforts should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention shall be implemented in accordance with conventional means in the field unless otherwise specified or limited.

Claims

1. A double-layer elbow casting precision casting device, characterized in that: include: A machine body (1) and a gate assembly (2), wherein the machine body (1) has a frame for supporting the machine body, a cover plate (3) is fixedly mounted on the side of the machine body (1), and a support frame (4) is fixedly mounted on the side of the top of the machine body (1); An upper mold assembly (5), the upper mold assembly (5) is used to move up and down to open and close the mold, and the upper mold assembly (5) is installed on the top of the support frame (4); The upper mold assembly (5) includes a hydraulic cylinder (51), which is fixedly mounted in the middle of the top of the support frame (4). The hydraulic cylinder (51) is mounted directly above the machine body (1). A movable mold (52) is fixedly mounted on the output end of the hydraulic cylinder (51). The gate assembly (2) is mounted on the top of the movable mold (52). A rectangular locking block (53) is fixedly mounted in the middle of the outer side of the movable mold (52). The bottom end of the rectangular locking block (53) is a semicircular curved surface. The double-layer elbow casting precision casting device also includes: A lower mold assembly (6), which is used to match the upper mold and the lower mold and stabilize the mechanism, and the lower mold assembly (6) is installed in the middle of the top of the machine body (1); The lower mold assembly (6) includes a fixed mold (61) and a round through hole (62), the bottom of the fixed mold (61) is fixedly installed in the middle of the top of the machine body (1), the movable mold (52) is installed directly below the fixed mold (61), the round through hole (62) is opened in the middle of the inside of the fixed mold (61), and the round through hole (62) passes through the fixed mold (61), a rectangular limit frame (63) is fixedly installed in the middle of the outer side of the fixed mold (61), the position of the round through hole (62) corresponds to the position of the rectangular limit frame (63), a U-shaped card slot (64) is opened on the top of the rectangular limit frame (63), the opening of the U-shaped card slot (64) is upward, the U-shaped card slot (64) is opened directly below the rectangular locking block (53), and a flexible pad (65) is fixedly installed at the bottom of the inner cavity of the U-shaped card slot (64); The gate assembly (2) includes a rectangular base (21), the rectangular base (21) is fixedly mounted to the side of the top of the movable mold (52) by screws, a zigzag casting square tube (22) is fixedly mounted in the middle of the top of the rectangular base (21), a conical hopper (23) is mounted on the top of the zigzag casting square tube (22), and a defoaming module (24) is mounted in the middle of the inside of the zigzag casting square tube (22).

2. A double-layer elbow casting precision casting device according to claim 1, characterized in that: The hydraulic cylinder (51) is installed directly above the movable mold (52). Two hydraulic cylinders (51) are installed, and the two hydraulic cylinders (51) are symmetrically installed along the gate assembly (2). The rectangular locking blocks (53) are evenly distributed in the middle of the outer side of the movable mold (52).

3. The double-layer elbow casting precision casting device according to claim 1, characterized in that: The bottom of the inner cavity of the U-shaped slot (64) is a semicircular concave surface, and the material of the flexible pad (65) is rubber.

4. A double-layer elbow casting precision casting device according to claim 3, characterized in that: The circular through holes (62) are opened at a position close to the top of the fixed mold (61), and the circular through holes (62) are evenly distributed inside the fixed mold (61).

5. The double-layer elbow casting precision casting device according to claim 1, characterized in that: The rectangular base (21) is installed directly below the zigzag casting square tube (22), and the opening of the conical hopper (23) gradually increases from bottom to top.

6. The double-layer elbow casting precision casting device according to claim 1, characterized in that: The defoaming module (24) comprises a flat zigzag plate (241), the top end of the flat zigzag plate (241) being fixedly mounted to the middle of the inner wall of the zigzag cast square tube (22), a triangular puncture piece (242) being fixedly mounted at the bend on the outer side of the flat zigzag plate (241), and a first scraper (243) and a second scraper (244) being fixedly mounted on the bottom of the flat zigzag plate (241).

7. A double-layer elbow casting precision casting device according to claim 6, characterized in that: The first scraping teeth (243) and the second scraping teeth (244) are both arc-shaped, and the first scraping teeth (243) and the second scraping teeth (244) are evenly distributed on the bottom of the plane zigzag plate (241).

8. The double-layer elbow casting precision casting device according to claim 1, characterized in that: A cooling mechanism (7) is installed inside the machine body (1), and the cooling mechanism (7) is installed directly below the fixed mold (61). The cooling mechanism (7) includes a liquid storage tank (71) and a water channel (72). The liquid storage tank (71) is fixedly installed at the bottom of the inner cavity of the machine body (1). The water channel (72) is opened inside the fixed mold (61) and close to the bottom. The water channel (72) is curved. A pump body (73) is fixedly installed on the side of the liquid storage tank (71). ), the liquid outlet end of the pump body (73) is connected to a first hose (74), the side of the top of the liquid storage tank (71) is connected to a second hose (75), the two ends of the water channel (72) are respectively connected to a water inlet pipe (76) and a water outlet pipe (77), the bottom end of the water inlet pipe (76) is connected to the top of the first hose (74), the bottom end of the water outlet pipe (77) is connected to the top of the second hose (75), and a material port (78) is installed on the top of the liquid storage tank (71).

9. The double-layer elbow casting precision casting device according to claim 8, characterized in that: The liquid inlet end of the pump body (73) passes through the outside of the liquid storage tank (71) and extends into the inside thereof, and the feed port (78) is installed at a position close to the pump body (73).

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