Sand box sealing device for precision casting production

Abstract

The utility model relates to a sand box sealing device for precision casting production, including work table, bottom box, top box and install sealing assembly on work table, bottom box fixed mounting is on the mesa of work table, top box installs top box's upper, sealing assembly two settings, two sealing assembly symmetrical settings top box's both sides, two sealing assembly all include fixed frame, gear and rack, two fixed frame fixed mounting is on the mesa of work table and symmetrical settings top box's both sides, top box's both sides all fixed mounting have fixed link, fixed link's one end rotates and installs in fixed frame inside, fixed link's outer wall fixed mounting has gear, the rack fixed mounting is at one side of fixed frame. The shape of gear is not complete gear, has simplified the dismounting step of sand box, replaced manual handling, has shortened the time of sand box material taking and cleaning, improved work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of casting technology, and in particular to a sand box sealing device for precision casting production. Background Technology

[0002] Sand boxes are commonly used molds in casting production. During casting, the sand box needs to be sealed. Multiple bolt holes are provided on the edge of the sand box, and bolts are used to fix it in place. Due to the large number of bolts, disassembly is time-consuming. Operators need to manually open the top box of the sand box, which is filled with molding sand. The top box is quite heavy, and manually turning it over is quite strenuous. After the sand box is completed and the overall temperature is very high, operators need to wait for the sand box to cool down before it can be opened, which reduces work efficiency. Utility Model Content

[0003] The purpose of this application is to provide a sand box sealing device for precision casting production to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] A sand box sealing device for precision casting production includes a worktable, a base box, a top box, and sealing components mounted on the worktable. The base box is fixedly mounted on the worktable surface, and the top box is mounted above the base box. Two sealing components are symmetrically arranged on both sides of the top box. Each sealing component includes a fixing frame, a gear, and a rack. The two fixing frames are fixedly mounted on the worktable surface and symmetrically arranged on both sides of the top box. Fixing rods are fixedly mounted on both sides of the top box. One end of each fixing rod is rotatably mounted inside a fixing frame, and a gear is fixedly mounted on the outer wall of the fixing rod. The rack is fixedly mounted on one side of the fixing frame. The gear is an incomplete gear, and the teeth of the gear and the teeth of the rack engage intermittently.

[0006] Preferably, a motor is installed inside the fixing frame, and the motor is fixedly mounted on the workbench. A screw is fixedly mounted on the output end of the motor, and a slider is sleeved on the outside of the screw. The end of the fixing rod is connected to the slider via a bearing. Guide rods are fixedly mounted on both sides of the top box, and clamping blocks are sleeved on the outer walls of the guide rods. Springs are fixedly mounted between the clamping blocks and the edges of the top box, and threaded tubes are fixedly mounted on the outer walls of the clamping blocks. Bases are fixedly mounted on both sides of the bottom box, and threaded holes are opened at the ends of the bases. The threaded tubes are bolted to the ends of the bases.

[0007] The beneficial effects of this utility model are: by setting a sealing component, the disassembly and assembly steps of the sand box are simplified, replacing manual handling, shortening the time for sand box material removal and cleaning, and improving work efficiency. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0009] Figure 2 This is a schematic diagram of the gear installation structure in this utility model;

[0010] Figure 3 In this utility model Figure 1 A magnified schematic diagram of the structure of region A;

[0011] Figure 4 In this utility model Figure 2 A magnified schematic diagram of the local structure of region B;

[0012] In the diagram: 1. Workbench; 2. Base box; 3. Top box; 4. Fixing frame; 5. Screw; 6. Slider; 7. Motor; 8. Rack; 9. Gear; 10. Fixing rod; 11. Clamping block; 12. Threaded pipe; 13. Base; 14. Guide rod; 15. Spring. Detailed Implementation

[0013] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.

[0014] like Figures 1-4 The sand box sealing device for precision casting production shown includes a worktable 1, a bottom box 2, a top box 3, and sealing components mounted on the worktable 1. The bottom box 2 is fixedly mounted on the worktable 1, and the top box 3 is mounted above the bottom box 2. Two sealing components are arranged symmetrically on both sides of the top box 3. Each sealing component includes a fixing frame 4, a gear 9, and a rack 8. The two fixing frames 4 are fixedly mounted on the worktable 1 and symmetrically arranged on both sides of the top box 3. Fixing rods 10 are fixedly mounted on both sides of the top box 3. One end of the fixing rod 10 is rotatably mounted inside the fixing frame 4. The gear 9 is fixedly mounted on the outer wall of the fixing rod 10, and the rack 8 is fixedly mounted on one side of the fixing frame 4. The gear 9 is an incomplete gear, and the teeth of the gear 9 intermittently engage with the teeth of the rack 8.

[0015] A motor 7 is installed inside the fixed frame 4. The motor 7 is fixedly mounted on the table surface of the workbench 1. A screw 5 is fixedly mounted on the output end of the motor 7. A slider 6 is sleeved on the outside of the screw 5. The end of the fixed rod 10 is connected to the slider 6 through a bearing. Guide rods 14 are fixedly mounted on both sides of the top box 3. A clamping block 11 is sleeved on the outer wall of the guide rod 14. A spring 15 is fixedly mounted between the clamping block 11 and the edge of the top box 3. A threaded tube 12 is fixedly mounted on the outer wall of the clamping block 11. Bases 13 are fixedly mounted on both sides of the bottom box 2. The end of the base 13 has a threaded hole. The threaded tube 12 is connected to the end of the base 13 by bolts.

[0016] Example: When the top box 3 and the bottom box 2 are closed, the motor 7 is in a locked state, the bolts fix the threaded tube 12 to the base 13, the bottom of the pressing block 11 is in contact with the edge of the top box 3, and the spring 15 is retracted inside the pressing block 11, so that the edges of the top box 3 and the bottom box 2 are tightly in contact, which plays a sealing role. After the sand box is poured, when it needs to be opened, the operator can use an electric screwdriver to remove the bolts between the threaded tube 12 and the base 13. The spring 15 drives the clamping block 11 to rise on the outer wall of the guide rod 14. The motor 7 in the fixed frame 4 starts, driving the screw 5 to rotate. The slider 6 drives the fixed rod 10, and the fixed rod 10 drives the top box 3 to rise. When the gear 9 on the side of the top box 3 rises to the rack 8, the teeth of the gear 9 engage with the teeth of the rack 8. As the teeth engage, the gear 9 drives the fixed rod 10 to rotate on the slider 6. The fixed rod 10 drives the top box 3 to flip. After the top box 3 flips, the operator can get a larger operating space. The operator can clean the molding sand inside the top box 3 and the bottom box 2 on the workbench 1 and take out the casting. This can save manual handling and simplify the disassembly and assembly process of the sand box.

[0017] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.

Claims

1. A sand box sealing device for precision casting production, comprising a worktable (1), a bottom box (2), a top box (3), and a sealing assembly mounted on the worktable (1), characterized in that: The bottom box (2) is fixedly installed on the table surface of the workbench (1), and the top box (3) is installed above the bottom box (2). Two sealing components are provided, and the two sealing components are symmetrically arranged on both sides of the top box (3). Each sealing component includes a fixing frame (4), a gear (9) and a rack (8). The two fixing frames (4) are fixedly installed on the table surface of the workbench (1) and symmetrically arranged on both sides of the top box (3). Fixing rods (10) are fixedly installed on both sides of the top box (3). One end of the fixing rod (10) is rotatably installed inside the fixing frame (4). The gear (9) is fixedly installed on the outer wall of the fixing rod (10), and the rack (8) is fixedly installed on one side of the fixing frame (4).

2. The sand box sealing device for precision casting production according to claim 1, characterized in that: The fixed frame (4) is equipped with a motor (7), which is fixedly installed on the table surface of the workbench (1). A screw (5) is fixedly installed at the output end of the motor (7), and a slider (6) is sleeved on the outside of the screw (5). The end of the fixed rod (10) is connected to the slider (6) through a bearing.

3. The sand box sealing device for precision casting production according to claim 1, characterized in that: Guide rods (14) are fixedly installed on both sides of the top box (3). A clamping block (11) is sleeved on the outer wall of the guide rod (14). A spring (15) is fixedly installed between the clamping block (11) and the edge of the top box (3). A threaded tube (12) is fixedly installed on the outer wall of the clamping block (11).

4. The sand box sealing device for precision casting production according to claim 3, characterized in that: The base (2) is fixedly installed with a base (13) on both sides of the base (13). The end of the base (13) is provided with a threaded hole, and the threaded tube (12) is connected to the end of the base (13) by bolts.

5. The sand box sealing device for precision casting production according to claim 1, characterized in that: The gear (9) is an incomplete gear, and the teeth of the gear (9) intermittently engage with the teeth of the rack (8).

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