A sand compactor for a sand mold for casting an automobile casting

Abstract

The utility model discloses a kind of sand mould compaction devices for automobile casting, including portal, base and cylinder, the both ends of the bottom of portal are respectively provided with base, and between the both sides of portal and base are provided with inclined rod, L-shaped support is rotatably connected in the top of portal, support block is provided in the right end of L-shaped support, cylinder is provided in the bottom of support block, the end of cylinder push rod is provided with pressing plate, sand box bearing platform is provided below pressing plate, sand box is provided on sand box bearing platform.The utility model is driven pressing plate to sand mould by cylinder, and remove excess mould sand in combination with movable sand box bearing platform and scraper, all-around compaction and surface flattening of sand mould are realized, sand mould compaction quality and casting forming precision are effectively improved, labor intensity is reduced, and production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to a sand mold compaction device, and more particularly to a sand mold compaction device for automobile casting, belonging to the field of sand casting technology. Background Technology

[0002] In the casting process of automotive parts, the compaction of molding sand within the sand mold is one of the key steps to ensure casting quality. Especially in sand casting, the compaction effect directly affects the forming accuracy and surface quality of the casting. Traditionally, sand mold compaction in sand casting relies primarily on manual operation, specifically workers standing on the sand box and compacting the molding sand by foot or hand. However, this manual compaction method has the following drawbacks: First, manual compaction is inefficient, requiring workers to spend a significant amount of time and energy, which impacts the production efficiency of automotive castings. Second, the compaction force is difficult to control evenly; differences in the force applied by different workers exist, and even the same worker cannot maintain a stable compaction force after prolonged work. This often results in uneven sand mold compaction, failing to meet the stringent requirements for sand mold quality in automotive casting, thus affecting the forming quality and accuracy of the casting and increasing the risk of defects. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a sand mold compaction device for automobile casting, which improves the efficiency and quality of sand mold compaction, reduces labor intensity, increases production efficiency, and ensures the forming quality and precision of castings.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows: A sand mold compaction device for automotive casting includes a gantry, a base, and a cylinder. The gantry has bases at both ends of its bottom, and diagonal braces are provided between the gantry and the bases on both sides. An L-shaped bracket is rotatably connected to the top of the gantry. A support block is provided at the right end of the L-shaped bracket, and a cylinder is provided at the bottom of the support block. A pressure plate is provided at the end of the cylinder push rod. A sand box bearing platform is provided below the pressure plate, and a sand box is mounted on the sand box bearing platform.

[0005] The end of the cylinder push rod is bolted to an outer sleeve, and the bottom of the outer sleeve is provided with an integral pressure plate.

[0006] The sand box carrying platform consists of a workbench, rollers, and scrapers. Rollers are installed at the four corners of the bottom of the workbench. Displacement grooves are opened on the outer walls of both sides of the workbench, and displacement blocks are slidably connected in each displacement groove. A positioning sleeve is installed on the top of the displacement block, and a rod is inserted into the positioning sleeve and fixed by bolts on the outer wall of the positioning sleeve. A scraper is installed on the top of the rod.

[0007] A sand box is provided on the workbench, and molding sand is provided inside the sand box. The scraper is located at the top of the sand box.

[0008] The cross-section of the scraper is larger than the cross-section of the sand box.

[0009] The positive and beneficial effects of this utility model are: 1. This utility model uses a cylinder to drive a pressure plate to compact the sand mold, which can provide uniform and stable compaction force, ensuring that the compaction effect of the sand mold is uniform and consistent, meeting the strict requirements of automotive casting for sand mold quality, thereby improving the forming quality and precision of the casting and reducing the risk of casting defects.

[0010] 2. This utility model, by setting rollers at the bottom of the workbench, allows workers to freely change the position of the sand box, achieving all-round compaction of the sand mold, improving the comprehensiveness and uniformity of compaction, further enhancing the quality of castings. It has a simple structure, is easy to operate, reduces the labor intensity of workers, and improves production efficiency.

[0011] 3. This utility model has positioning sleeves slidably connected to both sides of the workbench, and inserts a rod with a scraper into the positioning sleeve. This allows the operator to adjust the position of the scraper according to the height of the sand box and clean the excess molding sand on the top of the sand mold, ensuring the flatness of the sand mold surface and avoiding surface defects of the casting caused by uneven molding sand surface, thereby further improving the surface quality of the casting. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the sand box bearing platform of this utility model; Figure 3 This is an installation diagram of the pressure plate of this utility model; Among them: 1-Gantry, 2-Base, 3-Diagonal bar, 4-L-shaped bracket, 5-Support block, 6-Cylinder, 7-Outer sleeve, 8-Pressure plate, 9-Workbench, 10-Roller, 11-Displacement block, 12-Positioning sleeve, 13-Insertion rod, 14-Scraper, A-Sand box. Detailed Implementation

[0013] The present invention will be further explained and described below with reference to the accompanying drawings: See the example. Figures 1-3 A sand mold compaction device for automotive casting includes a gantry 1, a base 2, and a cylinder 6. The base 2 is respectively provided at both ends of the bottom of the gantry 1, and the diagonal rods 3 are provided between the gantry 1 and the base 2 on both sides. An L-shaped bracket 4 is rotatably connected to the top of the gantry 1. A support block 5 is provided at the right end of the L-shaped bracket 4. A cylinder 6 is provided at the bottom of the support block 5. A pressure plate 8 is provided at the lower end of the push rod of the cylinder 6. A sand box bearing platform is provided below the pressure plate 8. A sand box A is provided on the sand box bearing platform.

[0014] The end of the cylinder 6 push rod is bolted to an outer sleeve 7, and an integrated pressure plate 8 is installed at the bottom of the outer sleeve 7. This structure makes the connection between the pressure plate and the cylinder push rod more stable, better able to withstand the pressure during the compaction process, and at the same time facilitates the disassembly and replacement of the pressure plate, improving the maintenance convenience of the device.

[0015] The sand box support platform consists of a workbench 9, rollers 10, and scrapers 14. Rollers 10 are positioned at the four corners of the workbench 9's bottom. Displacement grooves are formed on the outer walls of both sides of the workbench 9, and displacement blocks 11 are slidably connected within each groove. A positioning sleeve 12 is positioned on top of each displacement block 11, and a rod 13 is inserted into the positioning sleeve 12 and fixed by bolts on the outer wall of the positioning sleeve 12. A scraper 14 is positioned on top of the rod 13. The rollers allow the workbench to move easily, thus changing the position of the sand box and achieving comprehensive compaction of the sand mold. The scrapers remove excess molding sand after compaction, ensuring the smoothness of the sand mold surface and further improving the quality of the casting.

[0016] A sand box A is installed on the workbench 9, and a scraper 14 is located at the top of the sand box A. This layout allows the scraper to accurately level the molding sand in the sand box, ensuring the smoothness of the molding sand surface.

[0017] The cross-section of scraper 14 is larger than that of sand box A. This allows the scraper to cover the molding sand on the top of the entire sand box, completing the leveling operation in one go, improving work efficiency, avoiding multiple leveling operations due to insufficient scraper size, and further improving the compaction quality and production efficiency of the sand mold.

[0018] In the above description, the cross-section of the workbench is larger than the cross-section of the sand box.

[0019] In the above description, the distance between the two bases is greater than the cross-section of the worktable.

[0020] As described above, workers can change the appropriate pressure plate and outer sleeve according to the size of the sand mold.

[0021] Working principle: Before construction, place the sand box on the workbench and fill it with sand. When the molding sand in the sand box is overflowing, move the workbench under the pressure plate and use the cylinder to compact the molding sand in the sand box. During the compaction process, the position of the workbench can be changed to achieve all-round compaction of the molding sand. After compaction, use a scraper to scrape the top of the sand box.

[0022] In the above description, before scraping, the scraper is located on the left side of the sand box, and the height of the scraper is adjusted according to the height of the sand box.

[0023] This invention uses a cylinder to drive a pressure plate to uniformly compact the sand mold, and combines a movable sand box support platform and a scraper to remove excess molding sand, achieving all-round compaction and surface smoothing of the sand mold. This effectively improves the compaction quality of the sand mold and the forming accuracy of the casting, reduces labor intensity, and increases production efficiency, demonstrating significant practicality and economy.

Claims

1. A sand mold compaction device for automobile casting, comprising a gantry (1), a base (2), and a cylinder (6), characterized in that: The bottom of the gantry (1) is provided with bases (2) at both ends, and diagonal rods (3) are provided between the gantry (1) and the bases (2) on both sides. The top of the gantry (1) is rotatably connected to an L-shaped bracket (4). A support block (5) is provided at the right end of the L-shaped bracket (4). A cylinder (6) is provided at the bottom of the support block (5). A pressure plate (8) is provided at the end of the push rod of the cylinder (6). A sand box bearing platform is provided below the pressure plate (8). A sand box (A) is provided on the sand box bearing platform.

2. The sand mold compaction device for automobile casting according to claim 1, characterized in that: The end of the cylinder (6) push rod is connected to an outer sleeve (7) by bolts, and the bottom of the outer sleeve (7) is provided with an integral pressure plate (8).

3. The sand mold compaction device for automobile casting according to claim 1, characterized in that: The sand box carrying platform consists of a workbench (9), rollers (10) and scrapers (14). Rollers (10) are respectively provided at the four corners of the bottom of the workbench (9). Displacement grooves are respectively opened on the outer walls of both sides of the workbench (9), and displacement blocks (11) are slidably connected in each displacement groove. A positioning sleeve (12) is provided on the top of the displacement block (11). A rod (13) is inserted into the positioning sleeve (12) and fixed by bolts on the outer wall of the positioning sleeve (12). A scraper (14) is provided on the top of the rod (13).

4. The sand mold compaction device for automobile casting according to claim 3, characterized in that: A sand box (A) is provided on the workbench (9), and the scraper (14) is located at the top of the sand box (A).

5. The sand mold compaction device for automobile casting according to claim 3, characterized in that: The cross-section of the scraper (14) is larger than the cross-section of the sand box (A).

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