Sand core dip-coating device

Abstract

The utility model discloses a sand core dip-coating device, belongs to the technical field of casting, and solves the problems that impurities easily exist in an inner cavity and a hole during dip-coating of an existing sand core, and the subsequent casting quality is influenced. The dip-coating device comprises a dip-coating box, an equipment box is arranged below the dip-coating box, a rotating motor is arranged in the equipment box, the output end of the rotating motor penetrates through the dip-coating box and then is provided with a placing plate, a clamping device used for clamping a sand core is arranged on the placing plate, a filtering box is arranged below the equipment box, and the filtering box is arranged below the equipment box. An inclined filter plate is arranged in the filter box, a first filter screen is arranged on the filter plate, and a shaking device for pushing the filter plate to shake is arranged on the outer side of the filter box. The sand core dip-coating device disclosed by the utility model can be used for filtering dip-coating liquid, optimizing the dip-coating environment and effectively improving the quality of subsequent casting products, and has the characteristics of convenience in use and strong practicability.

Description

Technical Field

[0001] This utility model relates to the field of casting technology, and in particular to a sand core impregnation and coating device. Background Technology

[0002] Cast iron parts refer to complex-shaped parts obtained by pouring molten iron heated to a liquid state into a corresponding mold and allowing it to cool. However, for some parts with internal cavities or holes, sand cores are required to form them directly. Considering the harsh working conditions of sand cores, their outer surfaces are usually coated during production to ensure that the sand cores have the required strength, rigidity, and resilience.

[0003] Currently, in small-scale foundries and machine tool casting production, the dip coating process still involves manually placing sand cores into a coating tank for dip coating. After long-term dip coating treatment of sand cores, large sand particles will appear in the coating solution. As the number of sand particles increases, they may remain in the inner cavity or pores during the dip coating process, forming impurities and affecting the subsequent casting quality. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a sand core impregnation and coating device that addresses the above-mentioned shortcomings of the prior art. This device can filter the impregnation and coating liquid, optimize the impregnation and coating environment, effectively improve the quality of subsequent casting products, and is characterized by its ease of use and strong practicality.

[0005] The technical solution adopted by this utility model is as follows: a sand core immersion coating device, including an immersion coating tank, an equipment box below the immersion coating tank, a rotary motor inside the equipment box, a placement plate after the output end of the rotary motor passes through the immersion coating tank, a clamping device for clamping the sand core on the placement plate, a filter box below the equipment box, an inclined filter plate inside the filter box, a first filter screen on the filter plate, a shaking device for pushing the filter plate to shake on the outside of the filter box, the bottom of the immersion coating tank and the upper part of the inner cavity of the filter box are connected through a spray assembly, and a liquid extraction device for drawing the immersion coating liquid into the immersion coating tank is connected to the lower part of the inner cavity of the filter box.

[0006] As a further improvement, the shaking device includes a support plate, a drive motor, a rotating shaft, a T-shaped push rod, and multiple arc-shaped blocks. The drive motor is mounted on the outside of the filter box via the support plate, and the output end of the drive motor is connected to the rotating shaft. The multiple arc-shaped blocks are arranged on the rotating shaft. The T-shaped push rod is movably inserted into one side of the filter box. One end of the T-shaped push rod contacts the arc-shaped block, and the other end is connected to the highest point of the filter plate. A return spring is connected between the filter plate and the inner wall of the filter box. The return spring is sleeved on the T-shaped push rod. The lowest point of the filter plate is movably inserted into the other side of the filter box.

[0007] Furthermore, a waste trough is provided on one side of the filter box, the filter plate is movably inserted into the waste trough, and a baffle is hinged above the waste trough.

[0008] Furthermore, an installation groove is provided below the waste trough, a push plate is provided below the lowest end of the filter plate, and a compression spring is provided between the push plate and the installation groove.

[0009] Furthermore, the clamping device includes a vertical plate, a screw, and a push block. The placement plate has vertical plates on both sides, the screw is threadedly connected to one of the vertical plates, and the push block is rotatably connected to one end of the screw.

[0010] Furthermore, the spray assembly includes an L-shaped pipe, a flow valve, and multiple branch pipes. One end of the L-shaped pipe is connected to the immersion coating tank, and the other end extends horizontally above the first filter screen. The multiple branch pipes are evenly arranged on the L-shaped pipe.

[0011] Furthermore, the liquid extraction device includes a water pump, the input end of which is connected to the filter box, and the output end of which is connected to the dip coating box.

[0012] Beneficial effects

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] This utility model discloses a sand core impregnation and coating device. By setting up a filter plate and using a spray assembly to guide the impregnation liquid to a filter box for filtration, the device effectively filters out sand particles from the impregnation liquid. The filtered impregnation liquid is then injected into the impregnation tank by a water pump, effectively reducing the probability of sand particles falling into the inner cavity or holes of the sand core, thereby ensuring the quality of subsequent casting. By setting up a rotary motor and using a clamping device to clamp the sand core onto a placement plate, the rotation of the rotary motor effectively throws out the impregnation liquid remaining in the inner cavity or holes of the sand core, and then flows back into the impregnation tank, avoiding waste of the impregnation liquid and thus saving costs. During the impregnation process, the sand core is rotated under the action of the rotary motor, resulting in better impregnation effect. This device can effectively filter the impregnation liquid, thereby purifying the impregnation liquid and ensuring the subsequent impregnation effect. It has the characteristics of being easy to use and having a wide range of applications. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0017] Figure 3 for Figure 1 Enlarged schematic diagram of the structure at point B.

[0018] Among them: 1-Immersion coating box, 2-Clamping device, 3-Spraying assembly, 4-Shaking device, 5-Equipment box, 6-Filter box, 7-Rotating motor, 8-Waste trough, 9-Filter plate, 10-First filter screen, 11-Baffle, 12-Water pump, 13-Installation groove, 14-Compression spring, 15-Push plate, 16-Placement plate, 17-Sand core, 21-Screw, 22-Push block, 23-Upright plate, 31-L-shaped pipe, 32-Flow valve, 33-Branch pipe, 41-Rotating shaft, 42-Drive motor, 43-T-shaped push rod, 44-Rotating shaft, 45-Arc block, 46-Support plate. Detailed Implementation

[0019] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.

[0020] See Figure 1-3 As shown, this utility model discloses a sand core impregnation and coating device, including an impregnation tank 1, an equipment box 5 below the impregnation tank 1, a rotary motor 7 inside the equipment box 5, and a placement plate 16 after the output end of the rotary motor 7 passes through the impregnation tank 1. A clamping device 2 for clamping sand cores 17 is provided on the placement plate 16. A filter box 6 is located below the equipment box 5, and an inclined filter plate 9 is provided inside the filter box 6. A first filter screen 10 is provided on the filter plate 9. A shaking device 4 for shaking the filter plate 9 is provided on the outside of the filter box 6. The bottom of the impregnation tank 1 is connected to the upper part of the inner cavity of the filter box 6 through a spray assembly 3. A pumping device for drawing the impregnation liquid into the impregnation tank 1 is connected to the lower part of the inner cavity of the filter box 6. In use, the flow valve 32 is first opened to allow the impregnation liquid in the impregnation tank 1 to flow into the filter box 6 for storage, facilitating the operator to place the sand core on the placement plate 16 and rotate the filter box 6. The screw 21 drives the pusher block 22 to clamp the sand core. After installation, the flow valve 32 is closed, and the water pump 12 injects the immersion coating liquid into the immersion coating tank 1. During the immersion coating process, the immersion coating liquid can quickly flow into all parts of the sand core's inner hole under the action of the rotary motor 7. The immersion coating effect is better when the sand core is rotating. After the immersion coating is completed, the flow valve 32 is opened, and the spray assembly 3 leads the immersion coating liquid to the filter box 6 for filtration, effectively filtering the sand particles in the immersion coating liquid. The filtered immersion coating liquid is then injected into the immersion coating tank by the water pump 12, effectively reducing the probability of sand particles falling into the inner cavity or holes of the sand core, thereby ensuring the subsequent casting quality. After the immersion coating liquid flows into the filter box 6, the rotary motor rotates to effectively throw out the immersion coating liquid remaining in the inner cavity or holes of the sand core, and then flows back into the immersion coating tank, avoiding waste of the immersion coating liquid and thus saving costs.

[0021] Specifically, the shaking device 4 includes a support plate 46, a drive motor 42, a rotating shaft 44, a T-shaped push rod 43, and multiple arc-shaped blocks 45. The drive motor 42 is mounted on the outside of the filter box 6 via the support plate 46. The output end of the drive motor 42 is connected to the rotating shaft 44. Multiple arc-shaped blocks 45 are arranged on the rotating shaft 44. The T-shaped push rod 43 is movably inserted into one side of the filter box 6. One end of the T-shaped push rod 43 contacts the arc-shaped block 45, and the other end is connected to the highest point of the filter plate 9. A return spring 41 is connected between the filter plate 9 and the inner wall of the filter box 6. The return spring 41 is sleeved on the T-shaped push rod 43. The lowest end of the filter plate 9 is movably inserted into the other side of the filter box 6. The drive motor 42 rotates and drives the rotating shaft 44. The rotating shaft 44 drives the multiple arc-shaped blocks 45. The multiple arc-shaped blocks 45 intermittently act on the T-shaped push rod 43, forming an impact effect. This causes the sand particles filtered onto the filter plate 9 to flow into the waste tank under the action of vibration, thus achieving the filtration function and effectively ensuring the cleanliness of the coating solution.

[0022] Preferably, a waste trough 8 is provided on one side of the filter box 6, and the filter plate 9 is movably inserted into the waste trough 8. A baffle 11 is hinged above the waste trough 8. The waste trough 8 is used for the discharge of sand particles. The baffle 11 serves as a barrier and also makes it easy for operators to open and clean the sand particles remaining on the filter plate 9.

[0023] Furthermore, an installation groove 13 is provided below the waste trough 8, and a push plate 15 is provided below the lowest end of the filter plate 9. A compression spring 14 is provided between the push plate 15 and the installation groove 13. During the process of pushing the filter plate 9, the push plate 15 squeezes the compression spring 14. When it is released, a reaction force is generated, which makes the filter plate 9 reciprocate, which is conducive to the sand particles rolling off.

[0024] Furthermore, the clamping device 2 includes a vertical plate 23, a screw 21, and a push block 22. The placement plate 16 is provided with vertical plates 23 on both sides. The screw 21 is threadedly connected to one of the vertical plates 23. The push block 22 is rotatably connected to one end of the screw 21. By rotating the screw 21, the push block 22 is driven to clamp the sand core.

[0025] Furthermore, the spray assembly 3 includes an L-shaped pipe 31, a flow valve 32, and multiple branch pipes 33. One end of the L-shaped pipe 31 is connected to the immersion coating tank 1, and the other end extends horizontally above the first filter screen 10. The multiple branch pipes 33 are evenly arranged on the L-shaped pipe 31. The immersion coating liquid is distributed to the multiple branch pipes 33 through the L-shaped pipe 31, so that the liquid can be dispersed on the first filter screen 10 for filtration, effectively improving the filtration effect.

[0026] Furthermore, the liquid extraction device includes a water pump 12, the input end of which is connected to the filter box 6, and the output end of which is connected to the dip coating box 1.

[0027] In this embodiment, the sand core impregnation and coating device is used by first opening the flow valve 32, allowing the impregnation solution in the impregnation tank 1 to flow into the filter tank 6 for storage. This facilitates the operator placing the sand core on the placement plate 16. The screw 21 is rotated to drive the push block 22, clamping the sand core. After installation, the flow valve 32 is closed, and the water pump 12 injects the impregnation solution into the impregnation tank 1. During the impregnation process, the rotating motor 7 allows the impregnation solution to quickly flow into all parts of the sand core's inner hole. The impregnation effect is better when the sand core is rotating. After coating is completed, the flow valve 32 is opened, and the spray assembly 3 guides the coating solution to the filter box 6 for filtration, effectively filtering out sand particles in the coating solution. The filtered coating solution is then injected into the coating tank by the water pump 12, effectively reducing the probability of sand particles falling into the sand core cavity or holes, thereby ensuring the subsequent casting quality. After the coating solution flows into the filter box 6, the rotary motor rotates to effectively throw out the coating solution remaining in the sand core cavity or holes, and then it flows back into the coating tank, avoiding waste of the coating solution and thus saving costs. This utility model provides a sand core coating device that can filter the coating solution, optimize the coating environment, and effectively improve the quality of subsequent casting products. It is convenient to use and highly practical.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.

Claims

1. A sand core impregnation and coating device, characterized in that, The equipment includes an immersion coating tank (1), an equipment box (5) below the immersion coating tank (1), a rotary motor (7) inside the equipment box (5), a placement plate (16) after the output end of the rotary motor (7) passes through the immersion coating tank (1), a clamping device (2) for clamping the sand core (17) on the placement plate (16), a filter box (6) below the equipment box (5), a filter plate (9) arranged at an incline inside the filter box (6), a first filter screen (10) on the filter plate (9), a shaking device (4) for pushing the filter plate (9) to shake on the outside of the filter box (6), the bottom of the immersion coating tank (1) and the upper part of the inner cavity of the filter box (6) are connected through a spray assembly (3), and the lower part of the inner cavity of the filter box (6) is connected to a liquid extraction device for drawing the immersion coating liquid into the immersion coating tank (1).

2. The sand core impregnation and coating device according to claim 1, characterized in that, The shaking device (4) includes a support plate (46), a drive motor (42), a rotating shaft (44), a T-shaped push rod (43), and multiple arc blocks (45). The drive motor (42) is installed on the outside of the filter box (6) through the support plate (46). The output end of the drive motor (42) is connected to the rotating shaft (44). Multiple arc blocks (45) are arranged on the rotating shaft (44). The T-shaped push rod (43) is movably inserted into one side of the filter box (6). One end of the T-shaped push rod (43) contacts the arc block (45), and the other end is connected to the highest point of the filter plate (9). A return spring (41) is connected between the filter plate (9) and the inner wall of the filter box (6). The return spring (41) is sleeved on the T-shaped push rod (43). The lowest end of the filter plate (9) is movably inserted into the other side of the filter box (6).

3. The sand core impregnation and coating device according to claim 2, characterized in that, The filter box (6) has a waste trough (8) on one side, the filter plate (9) is movably inserted into the waste trough (8), and a baffle (11) is hinged above the waste trough (8).

4. The sand core impregnation and coating device according to claim 3, characterized in that, The waste trough (8) is provided with an installation groove (13) below it, and the filter plate (9) is provided with a push plate (15) below its lowest end. A compression spring (14) is provided between the push plate (15) and the installation groove (13).

5. The sand core impregnation and coating device according to claim 1, characterized in that, The clamping device (2) includes a vertical plate (23), a screw (21) and a push block (22). The placement plate (16) has vertical plates (23) on both sides. The screw (21) is threadedly connected to one of the vertical plates (23). The push block (22) is rotatably connected to one end of the screw (21).

6. The sand core impregnation and coating device according to claim 1, characterized in that, The spray assembly (3) includes an L-shaped pipe (31), a flow valve (32) and multiple branch pipes (33). One end of the L-shaped pipe (31) is connected to the dip coating tank (1), and the other end extends horizontally above the first filter screen (10). The multiple branch pipes (33) are evenly arranged on the L-shaped pipe (31).

7. The sand core impregnation and coating device according to claim 1, characterized in that, The liquid extraction device includes a water pump (12), the input end of which is connected to the filter box (6), and the output end of which is connected to the dip coating box (1).

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