Casting device for lost foam casting

Abstract

The utility model discloses a casting device for lost foam casting, which comprises an n-shaped frame, the inner side of the n-shaped frame is rotatably connected with a casting ladle, the outer wall of the n-shaped frame is fixedly provided with a reduction gear box for driving the casting ladle, the bottom of the casting ladle is provided with a discharge port in a penetrating manner, a plug rod is arranged in the casting ladle, and the plug rod is connected with the reduction gear box. The bottom end of the plug rod is matched with the discharge hole; when the pouring device is used, the reduction gear box is rotated through the hand wheel, the pouring ladle can be driven to rotate in the n-shaped frame, so that the pouring ladle is turned over, liquid metal in the pouring ladle is poured out from the flow guide opening, pouring type pouring is achieved, the n-shaped clamping block is driven by the linear driving mechanism to move downwards and be clamped at the opening in the top end of the pouring ladle, and pouring is achieved. The connecting seat is driven by the lifting mechanism to drive the plug rod to move upwards, the discharge port in the bottom of the casting ladle can be opened, so that liquid metal linearly flows out downwards from the discharge port, the metal liquid is effectively prevented from being scattered outside the casting port of a model, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of casting, in particular to a casting device for lost foam casting. Background Art

[0002] Lost foam casting is a full-mold casting method that uses binder-free dry sand and vacuum technology to form foam plastic molds. Foam models with similar size and shape to the casting are bonded together into a model cluster, coated with refractory coating and dried, and then buried in dry quartz sand for vibration molding. The mold is poured under negative pressure to vaporize the model, and liquid metal occupies the model position. After solidification and cooling, the casting is formed.

[0003] In the lost foam casting process, a ladle is usually required to pour liquid metals such as molten steel and molten aluminum. After searching, the patent with the announcement number CN219025918U discloses a ladle pot that is convenient for pouring. The ladle pot body can be lifted and poured through the pouring assembly. During the pouring process of the ladle pot body, the staff does not need to be close to the ladle pot body, so as to avoid the ladle pot body being too hot and the staff being too close, causing discomfort to the staff, thereby affecting the pouring.

[0004] In actual use, the above scheme has a single pouring method, and the ladle needs to be turned over to pour the molten metal out of the diversion port at the top opening of the ladle. The movement trajectory of the diversion port is arc-shaped, and the flow rate of the molten metal when poured out of the diversion port is different, which will cause the curvature of the parabola formed by the molten metal to be different. Therefore, during operation, the molten metal is likely to spill outside the pouring port of the model, which needs to be improved. Utility Model Content

[0005] The purpose of the utility model is to provide a casting device for lost foam casting to solve the problems raised in the above background technology.

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

[0007] A casting device for lost foam casting comprises a mold frame, the inner side of the mold frame is rotatably connected to a ladle, the outer wall of the mold frame is fixedly installed with a reduction gear box for driving the ladle, the bottom of the ladle is penetrated by a discharge port, a plug rod is provided in the ladle, the bottom end of the plug rod is adapted to the discharge port, the outer wall of the ladle is connected to a connecting seat through a lifting mechanism, the top end of the plug rod is detachably connected to the connecting seat, the outer wall of the mold frame located above the reduction gear box is slidably provided with a slider through an open groove, the end of the slider located above the ladle is fixedly connected to a mold block, the outer wall of the mold frame is installed with a linear drive mechanism for driving the slider, and the wall thickness of the top opening of the ladle is adapted to the opening size of the mold block.

[0008] As a further solution of the present invention: the lifting mechanism includes a first mounting seat and an L-shaped seat fixedly mounted on the outer wall of the L-shaped frame, the first mounting seat and the L-shaped seat are rotatably connected to a second screw together, the outer wall of the second screw is cooperatively sleeved with a slide, a threaded hole adapted for the second screw is opened on the slide, a plurality of guide rods are slidably passed through the top of the first mounting seat, the top ends of the plurality of guide rods are fixedly connected to the connecting seat, the bottom ends of the plurality of guide rods are fixedly connected to the slide, a second transmission shaft is rotatably passed through the outer wall of the L-shaped seat, one end of the second transmission shaft is fixedly connected to a second hand wheel, and the other end of the second transmission shaft is transmission-connected to the bottom end of the second screw.

[0009] As a further solution of the present invention: the top end of the plug rod is fixedly connected to a square rod, the bottom of the connecting seat is provided with a square hole adapted to the square rod, bolts are passed through the top of the connecting seat corresponding to the square hole, the square rod is located in the square hole, and the top of the square rod is connected to the bolt through a threaded hole.

[0010] As a further solution of the present invention: the linear drive mechanism includes a bracket fixedly connected to the profile frame, the inner side of the bracket is rotatably connected to a first screw, the outer wall of the first screw is fitted with a nut, the slider is fixedly connected to the nut, the bottom of the bracket is rotatably connected to a first transmission shaft through a bearing seat, one end of the first transmission shaft is transmission-connected to the bottom end of the first screw, and the other end of the first transmission shaft is fixedly connected to a first handwheel.

[0011] As a further solution of the present invention: a guide port is integrally formed at the top opening of the ladle.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] When the utility model is in use, the reduction gear box is rotated by the hand wheel to drive the ladle to rotate in the mold frame, so that the ladle is turned over, and the liquid metal in the ladle is poured out from the guide port, thereby realizing pouring-type pouring, and the linear drive mechanism drives the mold clamping block to move downward and be clamped in the top opening of the ladle. Only when the lifting mechanism drives the connecting seat to drive the plug rod to move upward can the discharge port at the bottom of the ladle be opened, so that the liquid metal flows downward in a straight line at the discharge port, so as to effectively prevent the metal liquid from spilling outside the pouring port of the model, and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure is a schematic structural diagram of a casting device for lost foam casting.

[0015] Figure 2 The present invention is a structural schematic diagram of a plug rod in a casting device for lost foam casting.

[0016] Figure 3 The figure is a schematic diagram of the structure of a guide rod in a casting device for lost foam casting.

[0017] Among them, the profile frame 1, the ladle 2, the support leg 3, the discharge port 4, the guide port 5, the reduction gear box 6, the opening groove 7, the slider 8, the profile block 9, the bracket 10, the first screw 11, the nut 12, the first transmission shaft 13, the first handwheel 14, the plug rod 15, the square rod 16, the first mounting seat 17, the L-shaped seat 18, the second screw 19, the slide 20, the guide rod 21, the connecting seat 22, the square hole 23, the bolt 24, the second transmission shaft 25, and the second handwheel 26. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figures 1 to 3 In the embodiment of the present invention, a casting device for lost foam casting includes a mold frame 1, the inner side of the mold frame 1 is rotatably connected to a ladle 2. Specifically, both sides of the mold frame 1 are rotatably provided with a rotating shaft, and the rotating shaft is fixedly connected to the ladle 2. A guide port 5 is integrally formed at the top opening of the ladle 2. A reduction gear box 6 for driving the ladle 2 is fixedly installed on the outer wall of the mold frame 1. The output end of the reduction gear box 6 is fixedly connected to a rotating shaft, and the input shaft of the reduction gear box 6 is fixedly connected to a gear. The bottom of the ladle 2 is penetrated by a discharge port 4. A stopper rod 15 is provided in the ladle 2, and the bottom end of the stopper rod 15 is adapted to the discharge port 4. The outer wall of the ladle 2 is connected to a connecting seat 22 through a lifting mechanism, and the top end of the stopper rod 15 is detachably connected to the connecting seat 22. The outer wall of the rib frame 1 located above the reduction gear box 6 is slidably penetrated by a slider 8 through an open groove 7. The end of the slider 8 located above the ladle 2 is fixedly connected to a rib block 9. The outer wall of the rib frame 1 is installed with a linear drive mechanism for driving the slider 8. The wall thickness of the top opening of the ladle 2 is adapted to the opening size of the rib block 9.

[0020] The utility model adopts the above-mentioned scheme. When in use, the reduction gear box 6 is rotated by the hand wheel to drive the ladle 2 to rotate in the mold frame 1, so that the ladle 2 is turned over, so that the liquid metal in the ladle 2 is poured out from the guide port 5, thereby realizing pouring-type pouring. The linear drive mechanism drives the mold clamping block 9 to move downward and get stuck in the top opening of the ladle 2. Only by driving the connecting seat 22 by the lifting mechanism to drive the plug rod 15 to move upward can the discharge port 4 at the bottom of the ladle 2 be opened, so that the liquid metal flows out linearly downward from the discharge port 4, so as to effectively prevent the metal liquid from spilling outside the pouring port of the model, and the use effect is good.

[0021] Specific combination Figure 2 and Figure 3 In one embodiment of the present utility model, the lifting mechanism includes a first mounting seat 17 and an L-shaped seat 18 fixedly mounted on the outer wall of the cam frame 1, the first mounting seat 17 and the L-shaped seat 18 are rotatably connected to a second screw 19, the outer wall of the second screw 19 is cooperatively sleeved with a slide 20, the slide 20 is provided with a threaded hole adapted to the second screw 19, the top of the first mounting seat 17 is slidably penetrated by a plurality of guide rods 21, the top ends of the plurality of guide rods 21 are fixedly connected to the connecting seat 22, the bottom ends of the plurality of guide rods 21 are fixedly connected to the slide 20, the outer wall of the L-shaped seat 18 is rotatably penetrated by a second transmission shaft 25, one end of the second transmission shaft 25 is fixedly connected to a second hand wheel 26, and the other end of the second transmission shaft 25 is transmission-connected to the bottom end of the second screw 19. Specifically, the ends of the second transmission shaft 25 and the second screw 19 are fixedly connected to bevel gears, and the two bevel gears mesh with each other.

[0022] The second transmission shaft 25 is rotated by the second hand wheel 26 to drive the second screw 19 to rotate, and the threaded cooperation between the second screw 19 and the slide 20 can be used to drive the slide 20 to move up and down, thereby driving the connecting seat 22 up and down through the two guide rods 21 to realize the lifting and lowering of the plug rod 15.

[0023] Specific combination Figure 2 On the basis of the previous embodiment, further, the top of the plug rod 15 is fixedly connected to the square rod 16, and the bottom of the connecting seat 22 is provided with a square hole 23 adapted to the square rod 16. The top of the connecting seat 22 and the corresponding position of the square hole 23 are penetrated by a bolt 24. The square rod 16 is located in the square hole 23, and the top of the square rod 16 is connected to the bolt 24 through a threaded hole.

[0024] The cooperation between the square hole 23 and the blocking rod 16 can prevent relative rotation between the plug rod 15 and the connecting seat 22. The cooperation between the bolt 24 and the square rod 16 facilitates the disassembly and assembly of the plug rod 15 on the connecting seat 22.

[0025] Specific combination Figure 1 In one embodiment of the present utility model, the linear drive mechanism includes a bracket 10 fixedly connected to the mold frame 1, the inner side of the bracket 10 is rotatably connected to the first screw 11, the outer wall of the first screw 11 is fitted with a nut 12, the slider 8 is fixedly connected to the nut 12, the bottom of the bracket 10 is rotatably connected to the first transmission shaft 13 through a bearing seat, one end of the first transmission shaft 13 is transmission-connected to the bottom end of the first screw 11, specifically, the first transmission shaft 13 and one end of the first screw 11 are fixedly connected to a bevel gear, the two bevel gears are meshed with each other, and the other end of the first transmission shaft 13 is fixedly connected to a first handwheel 14.

[0026] By rotating the first transmission shaft 13 through the first hand wheel 14, the first screw 11 can be driven to rotate by the cooperation of the two bevel gears, and then the slider 8 is driven to slide along the open groove 7 by the cooperation of the first screw 11 and the nut 12, thereby driving the shaped block 9 to move up and down.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A casting device for lost foam casting, characterized in that: The invention comprises a mold frame (1), the inner side of the mold frame (1) is rotatably connected to a ladle (2), the outer wall of the mold frame (1) is fixedly installed with a reduction gear box (6) for driving the ladle (2), the bottom of the ladle (2) is provided with a discharge port (4), a plug rod (15) is provided in the ladle (2), the bottom end of the plug rod (15) is adapted to the discharge port (4), the outer wall of the ladle (2) is connected to a connecting seat (22) through a lifting mechanism, and the plug rod The top end of the (15) is detachably connected to the connecting seat (22); the outer wall of the shaped frame (1) located above the reduction gear box (6) is slidably penetrated by a slider (8) through an open groove (7); one end of the slider (8) located above the ladle (2) is fixedly connected to a shaped block (9); the outer wall of the shaped frame (1) is installed with a linear drive mechanism for driving the slider (8); the wall thickness of the top opening of the ladle (2) is adapted to the opening size of the shaped block (9).

2. A casting device for lost foam casting according to claim 1, characterized in that: The lifting mechanism comprises a first mounting seat (17) and an L-shaped seat (18) fixedly mounted on the outer wall of the shaped frame (1); the first mounting seat (17) and the L-shaped seat (18) are rotatably connected to a second screw rod (19); the outer wall of the second screw rod (19) is matched with a slide seat (20); a threaded hole adapted to match the second screw rod (19) is provided on the slide seat (20); a plurality of guide rods (21) are slidably passed through the top of the first mounting seat (17); the top ends of the plurality of guide rods (21) are fixedly connected to the connecting seat (22); the bottom ends of the plurality of guide rods (21) are fixedly connected to the slide seat (20); a second transmission shaft (25) is rotatably passed through the outer wall of the L-shaped seat (18); one end of the second transmission shaft (25) is fixedly connected to a second hand wheel (26); the other end of the second transmission shaft (25) is transmission-connected to the bottom end of the second screw rod (19).

3. The casting device for lost foam casting according to claim 1, characterized in that: The top end of the plug rod (15) is fixedly connected to a square rod (16); the bottom of the connecting seat (22) is provided with a square hole (23) adapted to the square rod (16); a bolt (24) is passed through the top of the connecting seat (22) corresponding to the square hole (23); the square rod (16) is located in the square hole (23), and the top of the square rod (16) is connected to the bolt (24) through a threaded hole.

4. The casting device for lost foam casting according to claim 1, characterized in that: The linear drive mechanism comprises a bracket (10) fixedly connected to the mold frame (1); the inner side of the bracket (10) is rotatably connected to a first screw (11); the outer wall of the first screw (11) is fitted with a nut (12); the slider (8) is fixedly connected to the nut (12); the bottom of the bracket (10) is rotatably connected to a first transmission shaft (13) through a bearing seat; one end of the first transmission shaft (13) is transmission-connected to the bottom end of the first screw (11); and the other end of the first transmission shaft (13) is fixedly connected to a first hand wheel (14).

5. The lost foam casting device according to claim 1, characterized in that: A flow guide port (5) is integrally formed at the top opening of the ladle (2).

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