Sand box turnover mechanism for casting
By designing a casting sand box flip mechanism, using hydraulic drive and motor impact combined with high-pressure airflow, the problem of large-sized sand box is difficult to completely dump, and efficient removal and recycling of molded sand is achieved.
Patent Information
- Application Number
- CN202421950099.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-13
AI Technical Summary
In the production process of large-size cast iron pipe workpieces, it is difficult for the prior art to effectively pour out the molded sand in the large-size sand box, resulting in difficulty in removing residual molded sand, affecting the reuse of molded sand.
A casting sand box flip mechanism is designed, and the bottom bearing bracket and side limit frame flip the sand box through a hydraulically driven rotating rod is driven, combined with the motor-driven rotating wheel and the protrusion impacting the top plate, and blowing the residual molded sand with high pressure airflow to achieve efficient discharge of molded sand.
It realizes efficient pouring and removal of large-sized sand boxes to ensure complete recycling of molded sand, strong overall stability and prevent molded sand from spilling and residue.
Smart Images
Figure CN223145988U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sand box turning, in particular to a sand box turning mechanism for casting. Background Art
[0002] During the production process of large-sized cast iron pipe workpieces, the final forming is carried out by using lost foam and sand boxes for casting. At the casting site, since the workpieces to be cast are relatively large in size, the casting sand boxes used are also relatively large, and the amount of molding sand filled in them is large. After each casting is completed, the molding sand in the sand box needs to be discharged and re-screened for reuse. However, due to the large size of the sand boxes used for casting large-sized pipe fittings and the large amount of molding sand inside, the operation of discharging the molding sand inside is rather troublesome, and it is impossible to effectively pour out all the internal molding sand completely, and there is likely to be residue. Content of the Utility Model
[0003] Aiming at the deficiencies of the prior art, the utility model provides a sand box turning mechanism for casting, which solves the problems mentioned above.
[0004] To achieve the above purposes, the utility model is realized through the following technical solutions: A sand box turning mechanism for casting includes a fixed bracket and a sand receiving box fixed on the left side of the fixed bracket. A sand box conveyor belt for conveying the sand box is arranged on the right side of the fixed bracket. A rotating rod driven by hydraulic pressure is rotatably connected to the surface of the fixed bracket. One side of the rotating rod is fixedly connected to a bottom supporting bracket. One side of the bottom supporting bracket is fixedly connected to a side limiting frame. The side limiting frame respectively wraps around the left, upper, front and rear directions of the sand box. An upper guard plate is fixedly connected to the top of the sand receiving box. One side of the upper guard plate is rotatably connected to a top plate. One side of the top plate is fixedly connected to a pressure-resistant plate that abuts against the side of the sand box. A discharge groove facing the sand receiving box is opened at the bottom of the top plate. A rotating wheel driven by a motor is rotatably connected to the surface of the upper guard plate. A protrusion that abuts against the left side of the top plate is opened on the side of the rotating wheel. When in use, the sand box is conveyed by the sand box conveyor belt to the upper part of the bottom supporting bracket. The bottom supporting bracket is driven by the rotating rod to rotate, driving the sand box to rotate. When the bottom supporting bracket and the side limiting frame drive the sand box to turn to the leftmost side, the side limiting frame abuts against the receiving bracket. At this time, the molding sand in the sand box falls into the sand receiving box, pouring the molding sand. At this time, the motor drives the rotating wheel to rotate, and the protrusion continuously impacts the top plate. The top plate pushes the sand receiving box to vibrate through the pressure-resistant plate, shaking off the residual molding sand inside it, effectively discharging it, and the overall stability is strong.
[0005] As a further solution of the present utility model: The bottom receiving bracket is arranged on both sides of the sand box conveyor belt, and the top is flush with the sand box. The sand box is conveyed by the sand box conveyor belt to above the bottom receiving bracket, and the bottom receiving bracket is driven to rotate by the rotating rod to drive the sand box to rotate.
[0006] As a further solution of the present utility model: A shielding plate is fixedly connected to the top of the top plate, and elastic plates located on both sides of the sand box are fixedly connected to both sides of the top plate. The two sides of the sand box are limited by the elastic plates, and the molding sand in the sand box is limited by the shielding plate to prevent it from spilling, so that it can accurately enter the sand receiving box.
[0007] As a further solution of the present utility model: A receiving frame is fixedly connected to the left side of the fixed bracket. When the bottom receiving bracket and the side limiting bracket drive the sand box to flip to the leftmost side, the side limiting bracket abuts against the receiving frame, and the sand box is supported by the receiving frame to prevent it from flipping excessively.
[0008] As a further solution of the present utility model: A blowing hopper communicated with the blower is fixedly connected to the side of the upper guard plate, and the blowing direction of the blowing hopper faces the inner cavity of the sand box. When there is residual molding sand in the inner cavity of the sand box during use, at this time, high-pressure air flow is blown into the inner part through the blowing hopper, and the residual molding sand inside is blown down so that it falls into the sand receiving box, and the molding sand in the sand box can be effectively discharged.
[0009] The present utility model has the following beneficial effects compared with the prior art:
[0010] 1. In the present utility model, when the bottom receiving bracket and the side limiting bracket drive the sand box to flip to the leftmost side, the side limiting bracket abuts against the receiving frame. At this time, the molding sand in the sand box falls into the sand receiving box to dump the molding sand. At this time, the motor drives the rotating wheel to rotate, and the top plate is continuously impacted by the protrusions. The top plate pushes the sand receiving box to vibrate through the compression plate, and the residual molding sand inside is shaken off, effectively discharged, and the overall stability is strong.
[0011] 2. In the present utility model, when there is residual molding sand in the inner cavity of the sand box during use, at this time, high-pressure air flow is blown into the inner part through the blowing hopper, and the residual molding sand inside is blown down so that it falls into the sand receiving box, and the molding sand in the sand box can be effectively discharged. Description of the Drawings
[0012] Figure 1 is a schematic structural diagram of the flipping state of the present utility model;
[0013] Figure 2 is a schematic structural diagram of the present utility model;
[0014] Figure 3 is a schematic structural diagram of the top plate of the present utility model;
[0015] Figure 4 For the present utility model Figure 1 is a partial enlarged view of part A in it.
[0016] In the figure: 1, sand receiving box; 2, fixed bracket; 3, rotating rod; 4, sand box conveyor belt; 5, bottom receiving bracket; 6, side limiting frame; 7, upper guard plate; 8, rotating wheel; 9, protrusion; 10, top plate; 11, elastic plate; 12, discharge groove; 13, shielding plate; 14, pressure-resistant plate; 15, receiving frame; 16, sand box; 17, blowing hopper. Specific embodiments
[0017] To further elaborate on the technical means and effects adopted by the present utility model to achieve the intended utility model purpose, the following combines the drawings and preferred embodiments to detail the specific implementation manners, structures, features and their effects of the present utility model as follows.
[0018] Please refer to Figures 1-4 , the present utility model provides a technical solution: a sand box turning mechanism for casting, including a fixed bracket 2 and a sand receiving box 1 fixed on the left side of the fixed bracket 2. A sand box conveyor belt 4 for conveying the sand box 16 is arranged on the right side of the fixed bracket 2. A rotating rod 3 driven by hydraulic pressure is rotatably connected to the surface of the fixed bracket 2. A bottom receiving bracket 5 is fixedly connected to one side of the rotating rod 3. A side limiting frame 6 is fixedly connected to one side of the bottom receiving bracket 5. The side limiting frame 6 respectively wraps around the left, upper, front and rear directions of the sand box 16. An upper guard plate 7 is fixedly connected to the top of the sand receiving box 1. A top plate 10 is rotatably connected to one side of the upper guard plate 7. A pressure-resistant plate 14 that abuts against the side of the sand box 16 is fixedly connected to one side of the top plate 10. A discharge groove 12 facing the sand receiving box 1 is opened at the bottom of the top plate 10. A rotating wheel 8 driven by a motor is rotatably connected to the surface of the upper guard plate 7. A protrusion 9 that abuts against the left side of the top plate 10 is opened on the side of the rotating wheel 8. When in use, the sand box 16 is conveyed by the sand box conveyor belt 4 to above the bottom receiving bracket 5. The rotating rod 3 is driven to drive the bottom receiving bracket 5 to rotate, driving the sand box 16 to rotate. When the bottom receiving bracket 5 and the side limiting frame 6 drive the sand box 16 to turn to the leftmost side, the side limiting frame 6 abuts against the receiving frame 15. At this time, the molding sand in the sand box 16 falls into the sand receiving box 1 to pour the molding sand. At this time, the motor drives the rotating wheel 8 to rotate, and the protrusion 9 continuously impacts the top plate 10. The top plate 10 pushes the sand receiving box 1 to vibrate through the pressure-resistant plate 14, shaking off the residual molding sand inside it, effectively discharging it, and the overall stability is strong.
[0019] The bottom receiving bracket 5 is arranged on both sides of the sand box conveyor belt 4, and the top is flush with the sand box 16. The sand box 16 is conveyed by the sand box conveyor belt 4 to above the bottom receiving bracket 5. The rotating rod 3 is driven to drive the bottom receiving bracket 5 to rotate, driving the sand box 16 to rotate.
[0020] A baffle plate 13 is fixedly connected to the top of the top plate 10, and elastic plates 11 located on both sides of the sand box 16 are fixedly connected to both sides of the top plate 10. The two sides of the sand box 16 are limited by the elastic plates 11, and the molding sand in the sand box 16 is limited by the baffle plate 13 to prevent it from spilling, so that it can accurately enter the sand receiving box 1.
[0021] A receiving frame 15 is fixedly connected to the left side of the fixed bracket 2. When the bottom receiving bracket 5 and the side limiting frame 6 drive the sand box 16 to flip to the leftmost side, the side limiting frame 6 abuts against the receiving frame 15, and the sand box 16 is supported by the receiving frame 15 to prevent it from flipping excessively.
[0022] A blowing hopper 17 communicated with the blower is fixedly connected to the side of the upper guard plate 7. The blowing direction of the blowing hopper 17 faces the inner cavity of the sand box 16. When there is molding sand residue in the inner cavity of the sand box 16 during use, at this time, high-pressure air flow is blown into the inside through the blowing hopper 17, and the remaining molding sand inside is blown down so that it falls into the sand receiving box 1, and the molding sand in the sand box 16 can be effectively guided out.
[0023] The above is only a preferred embodiment of the present invention, and it is not intended to limit the present invention in any form. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments with equivalent changes within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solution of the present invention.
Claims
1. Sand box turning mechanism for casting, comprising a fixed bracket (2) and a sand receiving box (1) fixed to the left side of the fixed bracket (2). A sand box conveyor belt (4) for conveying the sand box (16) is arranged on the right side of the fixed bracket (2), characterized in that: A rotating rod (3) driven by hydraulic pressure is rotatably connected to the surface of the fixed support (2). A bottom receiving support (5) is fixedly connected to one side of the rotating rod (3). A side limiting frame (6) is fixedly connected to one side of the bottom receiving support (5). The side limiting frame (6) respectively wraps around the left, upper, front and rear directions of the sand box (16). An upper guard plate (7) is fixedly connected to the top of the sand receiving box (1). A top plate (10) is rotatably connected to one side of the upper guard plate (7). A compression plate (14) that abuts against the side of the sand box (16) is fixedly connected to one side of the top plate (10). A discharge groove (12) facing the sand receiving box (1) is formed at the bottom of the top plate (10). A rotating wheel (8) driven by a motor is rotatably connected to the surface of the upper guard plate (7). A protrusion (9) that abuts against the left side of the top plate (10) is formed on the side of the rotating wheel (8).
2. The sand mold flask turning mechanism according to claim 1, characterized in that: The bottom receiving support (5) is arranged on both sides of the sand box conveyor belt (4), and the top is flush with the sand box (16).
3. The sand mold flask turnover mechanism according to claim 1, characterized in that: A shielding plate (13) is fixedly connected to the top of the top plate (10). Elastic plates (11) located on both sides of the sand box (16) are fixedly connected to both sides of the top plate (10).
4. The sand mold flask turnover mechanism according to claim 1, wherein: A receiving frame (15) is fixedly connected to the left side of the fixed support (2).
5. The sand mold flask turnover mechanism according to claim 1, wherein: A blowing hopper (17) communicated with a blower is fixedly connected to the side of the upper guard plate (7). The blowing direction of the blowing hopper (17) faces the inner cavity of the sand box (16).