Shell casting mold and casting method thereof

Abstract

The invention relates to the technical field of casting molds, in particular to a shell casting mold and a casting method.The shell casting mold comprises a base and a frame body, a mounting plate is vertically arranged on the base in a sliding mode, a lifting part for driving the mounting plate to vertically slide is arranged on the base, and a lower casting mold is rotationally arranged on the mounting plate; a casting upper mold opposite to the casting lower mold is rotationally arranged on the frame body, a centrifugal part for driving the casting upper mold to rotate is arranged on the frame body, a locking part is arranged between the casting upper mold and the casting lower mold, the casting upper mold comprises a cover plate rotationally arranged on the frame body, and a casting pipe head is coaxially and rotationally arranged on the frame body relative to the rotating center of the cover plate; the casting pipe head penetrates through the cover plate, a plurality of unit modules are arranged on the cover plate in a sliding mode, a casting cavity communicated with the casting pipe head is jointly defined by the unit modules and the casting lower die, a separating and combining assembly is arranged on the frame body, and a casting assembly is arranged on the frame body. The method has the effect of improving the production efficiency and the casting quality of the metal casting.

Description

Technical Field

[0001] The present application relates to the technical field of casting molds, and in particular to a shell casting mold and a casting method thereof. Background Art

[0002] Casting is a commonly used processing method, which is widely used in the production and manufacturing process of industrial machinery and equipment housings. Casting is a metal hot processing process, which pours liquid metal into a casting cavity that adapts to the shape of the part, and after it cools and solidifies, a metal part blank with a certain shape, size and performance is obtained.

[0003] Traditional casting processes mostly rely on sand casting. Sand casting has the characteristics of cheap and easy-to-obtain molding materials and simple casting manufacturing, which can meet the basic needs of the shell to a certain extent. However, sand casting has problems such as low precision, rough surface quality and low production efficiency. Especially in the face of mass production of shells with complex geometric shapes, the efficiency of workers in making casting sand molds often seems to be beyond their ability, which greatly affects the efficiency of workpiece casting production and has shortcomings. Summary of the invention

[0004] In order to improve the problem of low efficiency in traditional sand casting of complex-shaped shells, the present application provides a shell casting mold and a casting method thereof.

[0005] In the first aspect, the present application provides a shell casting mold adopting the following technical solution: A shell casting mold, comprising a base and a frame, a mounting plate is vertically slidably arranged on the base, a lifting member is arranged on the base to drive the mounting plate to slide vertically, a casting lower mold is rotatably arranged on the mounting plate, a casting upper mold opposite to the casting lower mold is rotatably arranged on the frame, a centrifugal member driving the casting upper mold to rotate is arranged on the frame, a locking member is arranged between the casting upper mold and the casting lower mold, the casting upper mold comprises a cover plate rotatably arranged on the frame, and a coaxial rotating member on the frame about the rotation center of the cover plate is arranged A casting pipe head is arranged, and the casting pipe head passes through the cover plate. A plurality of unit modules are slidably arranged on the cover plate. The unit modules slide in the radial direction of the axis of the casting pipe head. The plurality of unit modules and the casting lower mold together form a casting chamber connected to the casting pipe head. A separation and combination component is arranged on the frame, and the separation and combination component is used to drive the unit modules to move. The separation and combination component corresponds to the unit modules one by one. A casting component is arranged on the frame, and the casting component is used to inject molten metal liquid of a certain pressure into the casting pipe head.

[0006] By adopting the above technical scheme, workers use the separation and combination components to make the multiple unit modules on the cover plate approach each other until they are assembled into a casting upper mold, and then the lifting component drives the casting lower mold to approach the casting upper mold until the casting lower mold and the casting upper mold form a casting chamber. After that, the casting component injects molten metal liquid of a certain pressure into the casting chamber through the casting pipe head, and at the same time, the centrifugal component drives the casting upper mold to rotate. Under the locking action of the locking component, the casting upper mold drives the casting lower mold to rotate synchronously, so that the molten metal liquid fills the casting chamber. When the molten metal liquid solidifies, the lifting component drives the casting lower mold away from the casting upper mold, and the separation and combination components separate the multiple unit modules from each other. Finally, the worker removes the workpiece, thereby improving the casting efficiency of the workpiece.

[0007] Optionally, the separation and combination assembly includes a guide ring half strip coaxially arranged on the unit module, a plurality of separation and combination cylinders electrically connected to the control system are arranged on the frame, the separation and combination cylinders correspond to the guide ring half strips one by one, a clamping block is arranged on the piston rod of the separation and combination cylinder, the clamping block is slidably matched with the guide ring half strip, the cross-sections of the clamping block and the guide ring half strip are both T-shaped, a sliding block is arranged on the unit module, and a sliding groove for the sliding of the sliding block is opened on the cover plate.

[0008] By adopting the above technical solution, the control system starts the separation and combination cylinder, and the piston rod of the separation and combination cylinder pushes the guide ring half through the block. Due to the sliding cooperation between the slider and the slide groove, the multiple unit modules on the cover plate are approached to each other and gradually assembled into a casting upper mold, so as to facilitate the smooth demolding of the workpiece after casting.

[0009] Optionally, the lifting member includes a lifting cylinder arranged on the base and electrically connected to the control system, and a guide rod parallel to the axis of the piston rod of the lifting cylinder is slidably arranged on the base, and the piston rod of the lifting cylinder and the guide rod are both arranged on the mounting plate.

[0010] By adopting the above technical solution, when multiple unit modules are assembled into a casting upper mold, the control system starts the lifting cylinder. Under the guidance of the guide rod, the piston rod of the lifting cylinder drives the casting lower mold on the mounting plate to gradually abut against the casting upper mold, thereby forming a casting chamber.

[0011] Optionally, the locking member includes a positioning block disposed on the unit module, and the casting lower mold is provided with a positioning notch for the positioning block to be inserted into.

[0012] By adopting the above technical solution, the lower casting mold and the upper casting mold can rotate synchronously through the plug-in cooperation of the positioning block and the positioning notch.

[0013] Optionally, the casting assembly includes a pressure tube arranged on the frame and rotatably connected to the casting pipe head, a heat-resistant plate is coaxially slidably arranged in the pressure tube, a pushing cylinder electrically connected to a control system is arranged on the frame, the heat-resistant plate is arranged on the piston rod of the pushing cylinder, a casting funnel is arranged on the frame, and a gate valve electrically connected to the control system is arranged between the casting funnel and the pressure tube.

[0014] By adopting the above technical scheme, when the casting lower mold and the casting upper mold form a casting chamber, the control system starts the gate valve, and a part of the molten metal liquid in the casting funnel flows into the pressure tube, and then the control system closes the gate valve and starts the push cylinder at the same time. The piston rod of the push cylinder extends and squeezes the molten metal liquid in the pressure tube through the heat-resistant plate. The molten metal liquid in the pressure tube flows into the casting chamber from the casting pipe head, and then the piston rod of the push cylinder reciprocates and extends and contracts multiple times, thereby reducing the bubbles remaining in the molten metal liquid in the casting chamber, thereby improving the dimensional accuracy of the cast metal.

[0015] Optionally, the centrifugal component includes a gear ring disposed on the cover plate and coaxial with the casting pipe head, a centrifugal motor electrically connected to a control system is disposed on the frame, and a gear meshing with the gear ring is disposed on the output shaft of the centrifugal motor.

[0016] By adopting the above technical solution, before the molten metal flows into the casting chamber, the control system starts the centrifugal motor, and the output shaft of the centrifugal motor drives the gear ring on the cover plate to rotate through the gear, so as to realize the rotation of the casting upper mold, and the plug-in cooperation between the positioning block and the positioning groove makes the casting lower mold and the casting upper mold rotate synchronously, so that the molten metal in the casting chamber is in a centrifugal state, thereby improving the density and mechanical properties of the casting.

[0017] Optionally, a cooling groove is provided on the mounting plate on a side facing the casting lower mold, a plurality of cooling slot holes connected to the cooling groove are provided on the casting lower mold, the cooling slot holes correspond to the unit modules one-to-one, a quick cooling slot hole for connecting to the cooling slot hole is provided on the unit module, one end of the quick cooling slot hole facing away from the cooling slot hole is connected to the outer wall of the unit module, a cooling pool is provided on the base, a hose is connected between the cooling pool and the cooling groove, and a water pump electrically connected to the control system is provided on the hose.

[0018] By adopting the above technical solution, when the pushing cylinder stops working, the control system starts the water pump, and the water pump draws the coolant in the cooling pool to the cooling groove of the casting lower mold through the hose. The coolant in the cooling groove cools the casting lower mold through the cooling groove hole, so as to cool the bottom of the cast metal. At the same time, the coolant flows from the cooling groove hole into the quick cooling groove hole on the unit module, so as to cool the top of the cast metal, thereby accelerating the hardening efficiency of the cast metal, thereby improving the production efficiency of the workpiece, and cooling the casting lower mold and the casting upper mold at the same time to reduce damage to the casting lower mold and the casting upper mold.

[0019] Optionally, a top plate is vertically slidably provided on the casting lower mold, and the top plate is used to support the workpiece after casting. The casting lower mold is provided with a top groove for the top plate to slide, and a top column is coaxially provided on the top plate, and the top column is used to abut against the base.

[0020] By adopting the above technical solution, when the casting lower mold drives the detached workpiece to fall, the top column on the casting lower mold will gradually abut the base, so that the top column drives the top plate to lift and drop the workpiece on the casting lower mold, thereby making it convenient for workers to take the cast workpiece.

[0021] In a second aspect, the present application provides a casting method of a shell casting mold, which adopts the following technical solution: A casting method for a shell casting mold comprises the following steps: S1, the splitting and combining assembly drives the plurality of unit modules on the cover plate to move closer to each other until they are assembled into the casting upper mold; S2, the lifting member drives the mounting plate to drive the lower casting mold to rise until it forms the casting chamber with the upper casting mold; S3, the casting assembly injects molten metal liquid with a certain pressure into the casting chamber through the casting pipe head; S4, the centrifugal member drives the casting upper mold to rotate, and the casting upper mold drives the casting lower mold to rotate synchronously through the locking member, so that the molten metal liquid fills the casting chamber; S5. After the molten metal in the casting chamber solidifies, the lifting member drives the casting lower mold to separate from the casting upper mold, and the separation and combination assembly drives the multiple unit modules to separate from each other, and the cast workpiece falls off the cover plate.

[0022] By adopting the above technical solution, shells with complex shapes and sizes can be quickly cast, thereby improving the production efficiency of large-scale castings and helping to reduce the difficulty of casting castings.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. The worker uses the separation and combination components to make the multiple unit modules on the cover plate approach each other until they are assembled into a casting upper mold, and then the lifting component drives the casting lower mold to approach the casting upper mold until the casting lower mold and the casting upper mold surround a casting chamber. After that, the casting component injects molten metal liquid of a certain pressure into the casting chamber through the casting pipe head, and at the same time, the centrifugal component drives the casting upper mold to rotate. Under the locking action of the locking component, the casting upper mold drives the casting lower mold to rotate synchronously, so that the molten metal liquid fills the casting chamber. When the molten metal liquid solidifies, the lifting component drives the casting lower mold away from the casting upper mold, and the separation and combination components separate the multiple unit modules from each other. Finally, the worker can take down the workpiece, thereby improving the casting efficiency of the workpiece; 2. After the casting lower mold and the casting upper mold form a casting chamber, the control system starts the gate valve, and a part of the molten metal in the casting funnel flows into the pressure tube. Then the control system closes the gate valve and starts the push cylinder at the same time. The piston rod of the push cylinder extends and squeezes the molten metal in the pressure tube through the heat-resistant plate. The molten metal in the pressure tube flows into the casting chamber from the casting pipe head. Then the piston rod of the push cylinder reciprocates and retracts for many times, thereby reducing the bubbles remaining in the molten metal in the casting chamber, thereby improving the dimensional accuracy of the cast metal; 3. Before the molten metal flows into the casting chamber, the control system starts the centrifugal motor, and the output shaft of the centrifugal motor drives the gear ring on the cover plate to rotate through the gear, so as to realize the rotation of the casting upper mold, and the plug-in cooperation between the positioning block and the positioning notch makes the casting lower mold and the casting upper mold rotate synchronously, so that the molten metal in the casting chamber is in a centrifugal state, so as to improve the density and mechanical properties of the casting; 4. When the push cylinder stops working, the control system starts the water pump, and the water pump draws the coolant in the cooling pool to the cooling groove of the casting lower mold through the hose. The coolant in the cooling groove cools the casting lower mold through the cooling groove hole, thereby cooling the bottom of the cast metal. At the same time, the coolant flows from the cooling groove hole into the quick cooling groove hole on the unit module to cool the top of the cast metal, thereby accelerating the hardening efficiency of the cast metal and improving the production efficiency of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0025] Figure 2 It is a cross-sectional view used to reflect the positional relationship between the unit module, the casting lower mold and the separation and combination cylinder in the embodiment of the present application.

[0026] Description of the accompanying drawings: 1, base; 2, frame; 3, mounting plate; 4, lifting member; 41, lifting cylinder; 42, guide rod; 5, casting lower mold; 6, casting upper mold; 61, cover plate; 62, casting pipe head; 63, unit module; 64, casting chamber; 7, centrifugal member; 71, gear ring; 72, centrifugal motor; 73, gear; 8, locking member; 81, positioning block; 82, positioning notch; 9, separation and combination assembly; 9 1. Half guide ring; 92. Splitting and closing cylinder; 93. Block; 94. Sliding block; 95. Slide; 10. Casting assembly; 101. Pressure pipe; 102. Heat-resistant plate; 103. Pushing cylinder; 104. Casting funnel; 105. Gate valve; 11. Cooling trough; 12. Cooling trough hole; 13. Quick cooling trough hole; 14. Cooling pool; 15. Hose; 16. Water pump; 17. Top plate; 18. Top trough; 19. Top column. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-Figure 2 This application is described in further detail.

[0028] Example 1 The embodiment of the present application discloses a shell casting mold.

[0029] Reference Figure 1 and Figure 2 A shell casting mold includes a base 1 and a frame 2, a mounting plate 3 is vertically slidably arranged on the base 1, a lifting member 4 for driving the mounting plate 3 to slide vertically is arranged on the base 1, the lifting member 4 includes a lifting cylinder 41 bolted to the base 1 and electrically connected to the control system, a guide rod 42 parallel to the piston rod axis of the lifting cylinder 41 is slidably connected to the base 1, and the piston rod of the lifting cylinder 41 and the guide rod 42 are both bolted to the mounting plate 3.

[0030] Reference Figure 1 and Figure 2 A casting lower mold 5 is rotatably arranged on the mounting plate 3, a casting upper mold 6 opposite to the casting lower mold 5 is rotatably arranged on the frame 2, a top plate 17 is vertically slidably arranged on the casting lower mold 5, and the top plate 17 is used to support the workpiece after casting. A top groove 18 for the top plate 17 to slide is opened on the casting lower mold 5, and a top column 19 is coaxially welded on the top plate 17, and the top column 19 is used to abut against the base 1.

[0031] Reference Figure 1 and Figure 2 The casting upper mold 6 includes a cover plate 61 rotatably connected to the frame body 2, and a casting pipe head 62 is coaxially rotatably connected to the frame body 2 about the rotation center of the cover plate 61. The casting pipe head 62 passes through the cover plate 61, and a plurality of unit modules 63 are slidably arranged on the cover plate 61. The unit modules 63 slide in the radial direction of the axis of the casting pipe head 62. The plurality of unit modules 63 and the casting lower mold 5 together form a casting chamber 64 connected to the casting pipe head 62.

[0032] Reference Figure 1 and Figure 2 A separation and combination component 9 for driving the unit module 63 to move is arranged on the frame 2. The separation and combination component 9 corresponds to the unit module 63 one by one. The separation and combination component 9 includes a guide ring half strip 91 coaxially welded on the unit module 63, and a plurality of separation and combination cylinders 92 electrically connected to the control system are bolted on the frame 2.

[0033] Reference Figure 1 and Figure 2 The separation and combination oil cylinder 92 corresponds to the guide ring half strip 91 one by one, and a clamping block 93 is bolted on the piston rod of the separation and combination oil cylinder 92. The clamping block 93 slides with the guide ring half strip 91. The cross-sections of the clamping block 93 and the guide ring half strip 91 are both T-shaped. A slider 94 is welded on the unit module 63, and a slide groove 95 for the slider 94 to slide is opened on the cover plate 61. The cross-sections of the slider 94 and the slide groove 95 are both T-shaped.

[0034] Reference Figure 1 and Figure 2 A locking member 8 is arranged between the casting upper mold 6 and the casting lower mold 5. The locking member 8 includes a positioning block 81 welded on the unit module 63. A positioning notch 82 for the positioning block 81 to be inserted is opened on the casting lower mold 5.

[0035] The worker starts the separation and combination cylinder 92 through the control system. The piston rod of the separation and combination cylinder 92 pushes the guide ring half bar 91 through the block 93. Under the limiting action of the slider 94 and the slide groove 95, multiple guide ring half bars 91 drive the corresponding unit modules 63 to approach each other until they form a casting upper mold 6 with the cover plate 61.

[0036] Then the control system starts the lifting cylinder 41. Under the guidance of the guide rod 42, the piston rod of the lifting cylinder 41 drives the casting lower mold 5 to approach the casting upper mold 6 through the mounting plate 3 until the casting lower mold 5 and the casting upper mold 6 form a casting chamber 64. At this time, the positioning block 81 on the unit module 63 will be inserted into the positioning slot 82 on the casting lower mold 5.

[0037] Reference Figure 1 and Figure 2 A casting assembly 10 is arranged on the frame 2. The casting assembly 10 is used to inject molten metal liquid with a certain pressure into the casting pipe head 62. The casting assembly 10 includes a pressure pipe 101 bolted to the frame 2 and rotatably connected to the casting pipe head 62.

[0038] Reference Figure 1 and Figure 2A heat-resistant plate 102 is coaxially slidably arranged in the pressure tube 101, a pushing cylinder 103 electrically connected to the control system is bolted on the frame 2, the heat-resistant plate 102 is welded to the piston rod of the pushing cylinder 103, a casting funnel 104 is arranged on the frame 2, and a gate valve 105 electrically connected to the control system is arranged between the casting funnel 104 and the pressure tube 101.

[0039] Reference Figure 1 and Figure 2 A centrifugal part 7 for driving the casting upper mold 6 to rotate is arranged on the frame 2. The centrifugal part 7 includes a gear ring 71 welded to the cover plate 61 and coaxial with the casting pipe head 62. A centrifugal motor 72 electrically connected to the control system is bolted to the frame 2, and a gear 73 meshing with the gear ring 71 is welded on the output shaft of the centrifugal motor 72.

[0040] When the casting lower mold 5 and the casting upper mold 6 form a casting chamber 64, the control system starts the gate valve 105 to open, and the molten metal in the casting funnel 104 will flow into the pressure tube 101. After a period of time, the control system closes the gate valve 105, and a certain amount of molten metal will remain in the pressure tube 101. Then the control system starts the pushing cylinder 103, and the piston rod of the pushing cylinder 103 drives the heat-resistant plate 102 to push the molten metal in the pressure tube 101, and injects it into the casting chamber 64 through the casting pipe head 62.

[0041] The control system controls the piston rod of the pushing cylinder 103 to extend and retract reciprocally multiple times. At the same time, the control system starts the centrifugal motor 72. The output shaft of the centrifugal motor 72 drives the gear ring 71 on the cover plate 61 to rotate through the gear 73, so that the casting lower mold 5 and the casting upper mold 6 can rotate quickly and synchronously. At this time, the guide ring half strip 91 on the unit module 63 slides with the block 93 on the piston rod of the separation and combination cylinder 92, so that the molten metal liquid in the casting chamber 64 is in a centrifugal state, thereby reducing the pores inside the casting.

[0042] Reference Figure 1 and Figure 2 A cooling groove 11 is provided on the side of the mounting plate 3 facing the casting lower mold 5, and a plurality of cooling slot holes 12 connected to the cooling groove 11 are provided on the casting lower mold 5. The cooling slot holes 12 correspond to the unit modules 63 one by one, and the unit modules 63 are provided with quick cooling slot holes 13 for connecting to the cooling slot holes 12.

[0043] Reference Figure 1 and Figure 2 One end of the quick cooling slot 13 facing away from the cooling slot 12 is connected to the outer wall of the unit module 63, a cooling pool 14 is arranged on the base 1, a hose 15 is connected between the cooling pool 14 and the cooling slot 11, and a water pump 16 electrically connected to the control system is arranged on the hose 15.

[0044] When the control system stops the centrifugal motor 72, the control system starts the water pump 16, and the water pump 16 pumps the coolant in the cooling pool 14 to the cooling groove 11 on the mounting plate 3 through the hose 15. The coolant in the cooling groove 11 cools the casting lower mold 5 through the cooling groove hole 12, thereby cooling the bottom of the cast metal. At the same time, the coolant flows from the cooling groove hole 12 into the quick cooling groove hole 13 on the unit module 63, thereby cooling the top of the cast metal, thereby accelerating the cooling speed and uniformity of the cast metal.

[0045] Afterwards, the control system starts the lifting cylinder 41, which drives the casting lower mold 5 to separate from the casting upper mold 6 through the mounting plate 3, and then the control system starts the separation and combination cylinder 92, which drives the multiple unit modules 63 to move away from each other, and the control system starts the pushing cylinder 103, which squeezes the air in the pressure tube 101 through the heat-resistant plate 102, and the metal casting will fall off onto the casting lower mold 5, and the casting lower mold 5 will descend synchronously until the top column 19 abuts against the base 1, and the top column 19 fixes the metal casting through the top plate 17.

[0046] The implementation principle of Example 1 is as follows: a worker starts the separation and combination cylinder 92 through the control system, and the piston rod of the separation and combination cylinder 92 pushes the guide ring half bar 91 through the block 93. Under the limiting action of the slider 94 and the slide groove 95, multiple guide ring half bars 91 drive the corresponding unit modules 63 to approach each other until they form a casting upper mold 6 with the cover plate 61.

[0047] Then the control system starts the lifting cylinder 41. Under the guidance of the guide rod 42, the piston rod of the lifting cylinder 41 drives the casting lower mold 5 to approach the casting upper mold 6 through the mounting plate 3 until the casting lower mold 5 and the casting upper mold 6 form a casting chamber 64. At this time, the positioning block 81 on the unit module 63 will be inserted into the positioning slot 82 on the casting lower mold 5.

[0048] When the casting lower mold 5 and the casting upper mold 6 form a casting chamber 64, the control system starts the gate valve 105 to open, and the molten metal in the casting funnel 104 will flow into the pressure tube 101. After a period of time, the control system closes the gate valve 105, and a certain amount of molten metal will remain in the pressure tube 101. Then the control system starts the pushing cylinder 103, and the piston rod of the pushing cylinder 103 drives the heat-resistant plate 102 to push the molten metal in the pressure tube 101, and injects it into the casting chamber 64 through the casting pipe head 62.

[0049] The control system controls the piston rod of the pushing cylinder 103 to extend and retract reciprocally multiple times. At the same time, the control system starts the centrifugal motor 72. The output shaft of the centrifugal motor 72 drives the gear ring 71 on the cover plate 61 to rotate through the gear 73, so that the casting lower mold 5 and the casting upper mold 6 can rotate quickly and synchronously. At this time, the guide ring half strip 91 on the unit module 63 slides with the block 93 on the piston rod of the separation and combination cylinder 92, so that the molten metal liquid in the casting chamber 64 is in a centrifugal state, thereby reducing the pores inside the casting.

[0050] When the control system stops the centrifugal motor 72, the control system starts the water pump 16, and the water pump 16 pumps the coolant in the cooling pool 14 to the cooling groove 11 on the mounting plate 3 through the hose 15. The coolant in the cooling groove 11 cools the casting lower mold 5 through the cooling groove hole 12, thereby cooling the bottom of the cast metal. At the same time, the coolant flows from the cooling groove hole 12 into the quick cooling groove hole 13 on the unit module 63, thereby cooling the top of the cast metal, thereby accelerating the cooling speed and uniformity of the cast metal.

[0051] Afterwards, the control system starts the lifting cylinder 41, which drives the casting lower mold 5 to separate from the casting upper mold 6 through the mounting plate 3, and then the control system starts the separation and combination cylinder 92, which drives the multiple unit modules 63 to move away from each other, and the control system starts the pushing cylinder 103, which squeezes the air in the pressure tube 101 through the heat-resistant plate 102, and the metal casting will fall off onto the casting lower mold 5, and the casting lower mold 5 will descend synchronously until the top column 19 abuts against the base 1, and the top column 19 fixes the metal casting through the top plate 17.

[0052] Embodiment 2 of the present application discloses a casting method of a shell casting mold, comprising the following steps: S1. The worker starts multiple separation and combination cylinders 92 at the same time through the control system. The piston rods of the separation and combination cylinders 92 push the guide ring half strip 91 through the clamping block 93, so that the multiple unit modules 63 are close to each other and form a casting upper mold 6 with the cover plate 61; S2, the control system starts the lifting cylinder 41, and the piston rod of the lifting cylinder 41 drives the casting lower mold 5 to approach the casting upper mold 6 through the mounting plate 3, until the casting lower mold 5 and the casting upper mold 6 form a casting chamber 64; S3, the control system starts the gate valve 105 to open, and after a period of time, the control system closes the gate valve 105, and the molten metal in the casting funnel 104 will flow into the pressure pipe 101 in a quantitative manner, and then the control system starts the push cylinder 103, and the molten metal in the pressure pipe 101 is injected into the casting chamber 64 through the casting pipe head 62; S4, the control system starts the centrifugal motor 72, and at the same time the control system controls the piston rod of the push cylinder 103 to reciprocate and retract multiple times, and the output shaft of the centrifugal motor 72 drives the gear ring 71 on the cover plate 61 to rotate through the gear 73, so that the casting lower mold 5 and the casting upper mold 6 rotate rapidly and synchronously; S5, after the worker controls the control system to stop the centrifugal motor 72 and the pushing cylinder 103, the control system starts the water pump 16, and the water pump 16 pumps the coolant in the cooling pool 14 to the cooling groove 11 on the mounting plate 3 through the hose 15, and the coolant in the cooling groove 11 cools the casting lower mold 5 through the cooling groove hole 12, thereby cooling the bottom of the cast metal, and at the same time, the coolant flows from the cooling groove hole 12 into the quick cooling groove hole 13 on the unit module 63, thereby cooling the top of the cast metal; S6, the control system then starts the lifting cylinder 41, which drives the lower casting mold 5 to separate from the upper casting mold 6 through the mounting plate 3, and then the control system starts the separation and combination cylinder 92, which drives the multiple unit modules 63 to move away from each other; S7, the control system starts the pushing cylinder 103, and the pushing cylinder 103 squeezes the air in the pressure tube 101 through the heat-resistant plate 102, and the metal casting falls off onto the casting lower mold 5 under the blowing of the gas in the pressure tube 101, and descends synchronously with the casting lower mold 5; S8. Workers take out the casting after cooling and solidification.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A shell casting mold, characterized in that: The invention comprises a base (1) and a frame (2), wherein a mounting plate (3) is vertically slidably arranged on the base (1), a lifting member (4) for driving the mounting plate (3) to slide vertically is arranged on the base (1), a casting lower mold (5) is rotatably arranged on the mounting plate (3), a casting upper mold (6) opposite to the casting lower mold (5) is rotatably arranged on the frame (2), a centrifugal member (7) for driving the casting upper mold (6) to rotate is arranged on the frame (2), a locking member (8) is arranged between the casting upper mold (6) and the casting lower mold (5), the casting upper mold (6) comprises a cover plate (61) rotatably arranged on the frame (2), and a casting pipe head (61) is coaxially rotatably arranged on the frame (2) about the rotation center of the cover plate (61). 2), the casting pipe head (62) passes through the cover plate (61), and a plurality of unit modules (63) are slidably arranged on the cover plate (61), and the unit modules (63) slide along the radial direction of the axis of the casting pipe head (62), and the plurality of unit modules (63) and the casting lower mold (5) together form a casting chamber (64) connected to the casting pipe head (62), and a separation and combination component (9) is arranged on the frame (2), and the separation and combination component (9) is used to drive the unit modules (63) to move, and the separation and combination component (9) corresponds to the unit modules (63) one by one, and a casting component (10) is arranged on the frame (2), and the casting component (10) is used to inject molten metal liquid of a certain pressure into the casting pipe head (62).

2. A shell casting mold according to claim 1, characterized in that: The separation and combination assembly (9) includes a guide ring half strip (91) coaxially arranged on the unit module (63); a plurality of separation and combination cylinders (92) electrically connected to the control system are arranged on the frame (2); the separation and combination cylinders (92) correspond to the guide ring half strip (91) one by one; a clamping block (93) is arranged on the piston rod of the separation and combination cylinder (92); the clamping block (93) is slidably matched with the guide ring half strip (91); the cross-sections of the clamping block (93) and the guide ring half strip (91) are both T-shaped; a sliding block (94) is arranged on the unit module (63); and a sliding groove (95) for the sliding movement of the sliding block (94) is provided on the cover plate (61).

3. A shell casting mold according to claim 2, characterized in that: The lifting member (4) comprises a lifting cylinder (41) which is arranged on the base (1) and is electrically connected to a control system. A guide rod (42) which is parallel to the axis of the piston rod of the lifting cylinder (41) is slidably arranged on the base (1). The piston rod of the lifting cylinder (41) and the guide rod (42) are both arranged on the mounting plate (3).

4. A shell casting mold according to claim 3, characterized in that: The locking member (8) comprises a positioning block (81) arranged on the unit module (63), and the lower casting mold (5) is provided with a positioning notch (82) for the positioning block (81) to be inserted.

5. A shell casting mold according to claim 4, characterized in that: The casting assembly (10) comprises a pressure pipe (101) arranged on the frame (2) and rotatably connected to the casting pipe head (62); a heat-resistant plate (102) is coaxially slidably arranged inside the pressure pipe (101); a pushing cylinder (103) electrically connected to a control system is arranged on the frame (2); the heat-resistant plate (102) is arranged on the piston rod of the pushing cylinder (103); a casting funnel (104) is arranged on the frame (2); and a gate valve (105) electrically connected to a control system is arranged between the casting funnel (104) and the pressure pipe (101).

6. A shell casting mold according to claim 5, characterized in that: The centrifugal component (7) comprises a gear ring (71) arranged on the cover plate (61) and coaxial with the casting pipe head (62); a centrifugal motor (72) electrically connected to a control system is arranged on the frame (2); and a gear (73) meshing with the gear ring (71) is arranged on the output shaft of the centrifugal motor (72).

7. The shell casting mold according to claim 3, characterized in that: A cooling groove (11) is provided on the mounting plate (3) on a side facing the casting lower mold (5); a plurality of cooling groove holes (12) connected to the cooling groove (11) are provided on the casting lower mold (5); the cooling groove holes (12) correspond to the unit modules (63) one by one; a quick cooling groove hole (13) for connecting to the cooling groove hole (12) is provided on the unit module (63); one end of the quick cooling groove hole (13) facing away from the cooling groove hole (12) is connected to the outer wall of the unit module (63); a cooling pool (14) is provided on the base (1); a hose (15) is connected between the cooling pool (14) and the cooling groove (11); and a water pump (16) electrically connected to the control system is provided on the hose (15).

8. The shell casting mold according to claim 3, characterized in that: A top plate (17) is vertically slidably arranged on the casting lower mold (5), and the top plate (17) is used to support the workpiece after casting. A top groove (18) is opened on the casting lower mold (5) for the top plate (17) to slide, and a top column (19) is coaxially arranged on the top plate (17), and the top column (19) is used to abut against the base (1).

9. A casting method of a shell casting mold according to any one of claims 1 to 8, characterized in that: The steps include: S1, the splitting and combining assembly (9) drives the plurality of unit modules (63) on the cover plate (61) to move closer to each other until they are assembled into the casting upper mold (6); S2, the lifting member (4) drives the mounting plate (3) to drive the lower casting mold (5) to rise until it forms the casting chamber (64) with the upper casting mold (6); S3, the casting assembly (10) injects molten metal at a certain pressure into the casting chamber (64) through the casting pipe head (62); S4, the centrifugal member (7) drives the casting upper mold (6) to rotate, and the casting upper mold (6) drives the casting lower mold (5) to rotate synchronously through the locking member (8), so that the molten metal liquid fills the casting chamber (64); S5. After the molten metal in the casting chamber (64) solidifies, the lifting member (4) drives the casting lower mold (5) to separate from the casting upper mold (6), and the separation and combination assembly (9) drives the multiple unit modules (63) to separate from each other, and the cast workpiece falls off the cover plate (61).

Images