Casting sand molding device for vehicle axle housing casting
By introducing a filter box and guide plate structure into the casting sand molding device, the problem of uneven distribution of casting sand is solved, ensuring uniform filling of casting sand in the sand box and improving casting quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGYANG COUNTY EVERBRIGHT FOUNDRY CO LTD
- Filing Date
- 2025-05-16
- Publication Date
- 2026-06-05
AI Technical Summary
In the traditional sand filling process, the casting sand is unevenly distributed in the sand box, resulting in some areas of the mold not being filled, which affects the integrity of the molding material.
A casting sand molding device was designed, comprising a sand storage box, a filter box, and guide plates. The filter box screens and filters the casting sand, and guide plates one and two guide plates divert and guide the casting sand to distribute it evenly within the sand box.
This achieves uniform distribution of casting sand within the sand box, improving the integrity and quality of the molding material.
Smart Images
Figure CN224322312U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bridge housing casting technology, and particularly relates to a casting sand molding device for automotive bridge housing casting. Background Technology
[0002] The axle housing is an important load-bearing and force-transmitting component in automobiles. Its main function is to support and protect components such as the main reducer, differential, and half shaft. In the casting process, the mold is first placed in a sand box, and then sand is filled into the sand box to obtain the molding material for the casting.
[0003] In traditional sand filling processes, sand is usually poured directly into the sand box from the outlet of the conveyor. Since the sand drop position is constant, the casting sand tends to concentrate in a certain position within the sand box, resulting in uneven distribution of the casting sand. Consequently, some areas within the mold remain unfilled, affecting the integrity of the molding material. Utility Model Content
[0004] This utility model addresses the problems in the prior art by proposing the following technical solution:
[0005] This utility model provides a casting sand molding device for casting automotive axle housings, including:
[0006] The upper and lower sand storage boxes and sand tanks are respectively arranged at the top and bottom, and the bottom of the sand storage box is provided with a sand drop pipe;
[0007] It also includes auxiliary components, including a filter box disposed between the sand storage box and the sand box and located at the opening of the sand box. At the opening of the filter box and corresponding to the position of the sand drop pipe, there is a set of guide plates one and a set of guide plates two arranged symmetrically. A portion of the foundry sand falling in the sand drop pipe is guided by guide plates one and guide plates two to other positions in the sand box that do not correspond to the sand drop pipe.
[0008] As a preferred embodiment of the above technical solution, it also includes a frame, with the sand box located at the bottom inner side of the frame and the sand storage box located at the top of the frame.
[0009] As a preferred embodiment of the above technical solution, a fixing block is provided on the frame at the positions corresponding to both ends of the filter box, and a slot is provided on the fixing block at the end near the filter box. A plug rod is provided on the filter box, and the plug rod is inserted into the slot.
[0010] As a preferred embodiment of the above technical solution, a spring is also provided in the slot, one end of which is fixedly connected to the insertion rod. A receiving cavity is also provided on the fixed block near the filter box. A cam is rotatably provided in the receiving cavity. When the cam is rotating, its long axis end and short axis end alternately abut against and push the filter box, causing the filter box to swing.
[0011] As a preferred embodiment of the above technical solution, a motor is also provided outside the fixing block, and the output shaft of the motor extends into the receiving cavity and is connected to the rotating shaft of the cam.
[0012] The beneficial effects of this utility model are as follows:
[0013] This invention, through the auxiliary components, allows the filter box to screen and filter the sand entering the sand box. Furthermore, the guide plate one and guide plate two can divert and guide the casting sand falling from the sand drop pipe, so that the casting sand can be more evenly distributed in different positions within the filter box, thereby filling the sand box more evenly. Attached Figure Description
[0014] Figure 1 The diagram shown is a front view of the shaping device in the embodiment;
[0015] Figure 2 The diagram shown is a partial cross-sectional view of the shaping device in the embodiment;
[0016] Figure 3 What is shown is Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;
[0017] Reference numerals: 10, frame; 20, sand box; 30, sand storage box; 31, sand drop pipe; 40, auxiliary component; 41, filter box; 42, guide plate one; 43, guide plate two; 50, fixing block; 51, slot; 52, insertion rod; 61, spring; 62, receiving cavity; 63, cam; 64, motor. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.
[0019] Example
[0020] like Figure 1 , Figure 2 As shown, Figure 1 The diagram shown is a front view of the shaping device in the embodiment; Figure 2 The diagram shown is a partial cross-sectional view of the shaping device in the embodiment;
[0021] This device includes:
[0022] Rack 10;
[0023] Sand box 20, which is located at the bottom inside the frame 10;
[0024] Sand storage box 30 is disposed on the top of frame 10;
[0025] A sand drop pipe 31 is provided at the bottom of the sand storage box 30, and the sand drop pipe 31 is located above the corresponding sand box 20.
[0026] The sand in the sand storage box 30 falls into the sand box 20 through the sand drop pipe 31.
[0027] like Figure 1 , Figure 2 As shown, Figure 1 The diagram shown is a front view of the shaping device in the embodiment; Figure 2 The diagram shown is a partial cross-sectional view of the shaping device in the embodiment;
[0028] It also includes an auxiliary component 40, which includes a filter box 41 located at the opening of the sand box 20. At the opening of the filter box 41 and corresponding to the position of the sand drop pipe 31, there is a set of guide plates 42 and 43 arranged symmetrically. A portion of the foundry sand falling from the sand drop pipe 31 is guided by the guide plates 42 and 43 to other positions in the sand box 20 that do not correspond to the sand drop pipe 31.
[0029] The auxiliary component 40 serves to evenly fill and filter sand.
[0030] A gap is left between the symmetrical guide plate 42 and the guide plate 43 for sand to enter directly, so that sand that does not fall on the guide plate 42 or the guide plate 43 can fall directly into the filter box 41 at the position below the corresponding sand drop pipe 31, while the sand that falls on the guide plate 42 and the guide plate 43 flows to other areas of the filter box 41 under the guidance of the guide plate 42 and the guide plate 43.
[0031] Specifically, the filter box 41 is a rectangular box with an open top, and its size covers the area of the sand box 20 that needs to be filled with casting sand. The main body of the filter box 41 is a filter material with through holes, which allows most of the casting sand to pass through and prevents larger impurities from passing through. The guide plate 1 42 and guide plate 2 43 can divert and guide the casting sand falling from the sand drop pipe 31, so that it not only fills the area directly below, but also covers other parts.
[0032] like Figure 2 , Figure 3 As shown, Figure 2 The diagram shown is a partial cross-sectional view of the shaping device in the embodiment; Figure 3 What is shown is Figure 2 Enlarged schematic diagram of the structure at point A in the diagram;
[0033] Fixing blocks 50 are provided on the frame 10 at the positions corresponding to both ends of the filter box 41. A slot 51 is provided on the fixing block 50 near the end of the filter box 41. A plug rod 52 is provided on the filter box 41, and the plug rod 52 is inserted into the slot 51.
[0034] The filter box 41 is supported and installed by the slots 51 and the rods 52, which ensures the accuracy and stability of the installation of the filter box 41. Specifically, two sets of slots 51 are provided on each side of the fixing block 50.
[0035] A spring 61 is also provided inside the slot 51, and one end of the spring 61 is fixedly connected to the insertion rod 52;
[0036] The fixed block 50 is also provided with a receiving cavity 62 at one end near the filter box 41. A cam 63 is rotatably provided in the receiving cavity 62. When the cam 63 is rotating, its long shaft end and short shaft end alternately abut against and push the filter box 41, causing the filter box 41 to swing.
[0037] The spring 61 provides elastic support to the filter box 41, allowing it to swing left and right as the cam 63 alternately pushes it. This left-right swinging helps improve the distribution of casting sand within the filter box 41. On one hand, it further enhances the uniformity of the casting sand within the filter box 41, making the casting sand fall more evenly into the sand box 20. On the other hand, it enhances the filtration effect and prevents sand particles from clogging the filter box 41.
[0038] A motor 64 is also provided outside the fixed block 50. The output shaft of the motor 64 extends into the receiving cavity 62 and is connected to the rotating shaft of the cam 63.
[0039] The cam 63 is powered to rotate by a motor 64, which is part of the existing technology.
[0040] Working principle: When in use, the casting sand in the sand storage box 30 falls into the filter box 41 through the sand drop pipe 31. The sand flow is symmetrically guided by the guide plate 42 and the guide plate 43, and flows to different areas of the filter box 41. The sand particles pass through the filter box 41 and fall evenly into the sand box 20, where impurities are intercepted. At the same time, the motor 64 can be turned on, which drives the cam 63 to rotate. During the rotation, the long shaft end and the short shaft end of the cam 63 alternately contact the two sides of the filter box 41, applying a periodic thrust. Under the elastic reset action of the spring 61, the filter box 41 oscillates periodically when pushed, further ensuring that the sand particles in the filter box 41 are evenly distributed before falling into the sand box 20.
[0041] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.
Claims
1. A casting sand molding device for casting automotive axle housings, characterized in that, include: The upper and lower sand storage boxes (30) and sand boxes (20) are respectively arranged, and the bottom of the sand storage box (30) is provided with a sand drop pipe (31); It also includes an auxiliary component (40), which includes a filter box (41) located between the sand storage box (30) and the sand box (20) and at the opening of the sand box (20). At the opening of the filter box (41) and corresponding to the position of the sand drop pipe (31), there is a set of guide plates one (42) and a set of guide plates two (43) arranged symmetrically. A portion of the foundry sand falling in the sand drop pipe (31) is guided by the guide plates one (42) and the guide plates two (43) to other positions in the sand box (20) that do not correspond to the sand drop pipe (31).
2. The casting sand molding device for casting automotive axle housings according to claim 1, characterized in that, It also includes a frame (10), the sand box (20) is located at the bottom inside the frame (10), and the sand storage box (30) is located at the top of the frame (10).
3. The casting sand molding device for casting automotive axle housings according to claim 2, characterized in that, Fixing blocks (50) are provided on the frame (10) at the positions corresponding to both ends of the filter box (41). A slot (51) is provided on one end of the fixing block (50) near the filter box (41). A plug (52) is provided on the filter box (41). The plug (52) is inserted into the slot (51).
4. The casting sand molding device for casting automotive axle housings according to claim 3, characterized in that, A spring (61) is also provided in the slot (51). One end of the spring (61) is fixedly connected to the insertion rod (52). A receiving cavity (62) is also provided on the fixed block (50) near the filter box (41). A cam (63) is rotatably provided in the receiving cavity (62). When the cam (63) is rotating, its long axis end and short axis end alternately abut against and push the filter box (41), causing the filter box (41) to swing.
5. The casting sand molding device for casting automotive axle housings according to claim 4, characterized in that, A motor (64) is also provided outside the fixing block (50), and the output shaft of the motor (64) extends into the receiving cavity (62) and is connected to the rotating shaft of the cam (63).