A high-temperature resistant cut-off valve housing casting device

Abstract

The present invention belongs to the technical field related to the processing of casting devices, and specifically discloses a high-temperature resistant cutting valve housing casting device, including a casting box and a sand box. A frame is arranged at the rear end of the casting box, and a supporting sliding mechanism is arranged inside the frame. A sleeve is arranged inside the casting box, and a resisting platform is arranged in the middle at the rear end of the sleeve. Vibration mechanisms are arranged at both ends inside the sleeve and are in contact with the bottom of the sand box. Slide rail rods are arranged on both sides of the outer wall of the sand box, and guide rods are arranged on both sides of the upper surface of the casting box. Slide seats are slidably installed on the outer sides of the two guide rods, and an upper pressing seat is jointly arranged between the two groups of slide seats. The upper surface of the upper pressing seat is connected to a lower pressing mechanism through a connecting component arranged thereon, and guiding driving mechanisms are arranged on both sides of the outer wall of the upper pressing seat. The present invention can shake the sand grains inside the sand box, thereby avoiding the generation of gaps during casting and improving the casting quality.

Description

Technical Field

[0001] The present invention belongs to the technical field related to the processing of casting devices, and specifically discloses a high-temperature resistant cutting valve housing casting device. Background Art

[0002] A cut-off valve is a kind of actuator in an automated system, which consists of a multi-spring pneumatic diaphragm actuator or a floating piston actuator and a regulating valve. The cut-off valve has a wide range of uses and can be used to cut off gas, combustion-supporting air, cold air, flue gas, etc.

[0003] When producing this valve, sand casting is generally used. Sand casting requires the use of a sand box device. The existing sand boxes have a simple structure when in use and rely on manual operation multiple times. There will be gaps when filling sand grains inside the sand box, and thus, when casting the valve housing, it is not dense enough, which affects the forming of the housing. Therefore, we need to improve this. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the background art, and a high-temperature resistant cutting valve housing casting device is proposed, which includes a casting box and a sand box. A frame is arranged at the rear end of the casting box, a supporting and sliding mechanism is arranged inside the frame, a sleeve is arranged inside the casting box, an abutting platform is arranged in the middle at the rear end of the sleeve, both ends of the inner side of the sleeve are in contact with the bottom of the sand box through vibration mechanisms arranged, slide rail rods are arranged on both sides of the outer wall of the sand box, guide rods are arranged on both sides of the upper surface of the casting box, sliding seats are slidably installed on the outer sides of the two guide rods, an upper pressing seat is jointly arranged between the two groups of sliding seats, a lower pressing mechanism is connected to the upper surface of the upper pressing seat through a connecting component arranged, and guiding and driving mechanisms are arranged on both sides of the outer wall of the upper pressing seat;

[0005] Both ends of the two slide rail rods extend downward and the upper surfaces are set as curved surfaces, and the lower ends of the guiding and driving mechanisms are in sliding contact with the upper surfaces of the slide rail rods, so that the sand box can oscillate left and right.

[0006] Preferably, the supporting and sliding mechanism includes a bottom rod fixedly arranged in the middle inside the frame, a supporting seat is slidably installed above the outer side of the bottom rod, a bearing rod is fixedly arranged at the upper end of the supporting seat, a lead screw is threadedly connected above the inside of the supporting seat, one end of the lead screw is rotationally matched with the outer side of the abutting platform, the end of the lead screw far from the abutting platform is connected with a motor, the motor is installed on the outer side of the frame, limiting platforms are fixedly arranged on both sides of the upper surface of the abutting platform, and the bearing rod is in sliding fit with the limiting platforms.

[0007] Preferably, the vibration mechanism includes a support plate fixedly arranged at one end of the inner side of the sleeve, the other side of the support plate is connected to the inner bottom wall of the sleeve, multiple groups of vibration spring seats are arranged on the upper surface of the support plate, and the vibration spring seats are in contact with the bottom of the sand box.

[0008] Preferably, the connecting component includes two reinforcing rods horizontally arranged on the upper surface of the upper pressing seat. An L-shaped rod is fixedly arranged on the upper surface of the upper pressing seat and close to the connection of the two reinforcing rods. The L-shaped rod is connected to the lower pressing mechanism. A grouting pipe is commonly connected and installed inside the two reinforcing rods and the upper pressing seat. Two support plates are vertically arranged on the upper surface of the upper pressing seat. Sliding plates are slidably installed outside the mutually remote ends of the two support plates, and the sliding plates are arranged in an L shape.

[0009] Preferably, the lower pressing mechanism includes a hydraulic cylinder. The telescopic end of the hydraulic cylinder is connected to the lower end of the L-shaped rod, and the bottom of the hydraulic cylinder is fixedly arranged on the upper surface of the abutment table.

[0010] Preferably, the guiding and driving mechanism includes a sliding groove opened on one side inside the upper pressing seat. A slider is slidably installed inside the sliding groove. A sleeve is arranged on the lower surface of the slider. An extrusion spring is arranged inside the sleeve. A resisting rod is slidably installed inside the sleeve and at the lower end of the extrusion spring. The bottom end of the resisting rod is fixedly provided with a connecting rod. A ball is arranged below inside the connecting rod. The ball is in rolling contact with the surface of the sliding rail rod. A supporting plate is fixedly arranged at one end outside the upper pressing seat. A cylinder is installed outside the supporting plate. The telescopic end of the cylinder is connected to the outside of the slider.

[0011] Preferably, a rotating shaft is rotatably installed in the middle inside the housing. The end of the rotating shaft away from the sand box is rotationally matched with the inside of the abutment table. A U-shaped frame is arranged above the outside of the rotating shaft. The U-shaped frame abuts against the bottom of the sand box. U-shaped clamping rods are fixedly arranged above both ends of the U-shaped frame. The two clamping rods wrap around the front end and the rear end outside the sand box.

[0012] Preferably, limiting rods are symmetrically and slidably inserted on both sides inside the housing. One ends of the two limiting rods on the same side both extend into the clamping rod movably. A U-shaped rod is commonly arranged at the ends of the two limiting rods on the same side away from the clamping rod.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] Through the arranged supporting and sliding mechanism, after the later casting is completed, the sand box can be pushed to one end, which is convenient for workers to change the sand.

[0015] Through the arranged sliding rail rod and guiding and driving mechanism, the sand box can be made to oscillate left and right above the vibration spring seat, so that after the sand core is loaded, the sand grains filled in the sand box can be shaken to compact the sand grains, thereby improving the quality of the casting of the valve housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of the present invention;

[0017] Figure 2 This is a schematic structural diagram of another angle of the present invention;

[0018] Figure 3 This is a schematic structural diagram of the connection between the sand box and the casing of the present invention;

[0019] Figure 4 This is a schematic structural diagram of the connection between the sleeve and the bottom rod of the present invention;

[0020] Figure 5 This is a schematic structural diagram of the connection between the casing and the U-shaped frame of the present invention;

[0021] Figure 6 This is a schematic structural diagram of the connection between the clamping rod and the limiting rod of the present invention.

[0022] In the figure: 1, casting box; 2, frame; 3, bearing rod; 4, support seat; 5, motor; 6, bottom rod; 7, guide rod; 8, upper pressing seat; 9, sliding plate; 10, L-shaped rod; 11, sliding seat; 12, cylinder; 13, hydraulic cylinder; 14, limiting table; 15, sleeve; 16, sand box; 17, slide rail rod; 18, limiting rod; 19, U-shaped rod; 20, casing; 21, reinforcing rod; 22, frame plate; 23, grouting pipe; 24, support plate; 25, clamping rod; 26, U-shaped frame; 27, rotating shaft; 28, vibration spring seat; 29, slider; 30, abutting rod; 31, ball; 32, connecting rod; 33, compression spring; 34, lead screw; 35, chute; 36, abutting platform. Detailed implementation manners

[0023] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0024] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention may be implemented in other ways different from those described herein. Therefore, the present invention is not limited by the limitations of the specific embodiments disclosed below.

[0025] Such as Figures 1-6A high-temperature resistant cut-off valve housing casting device shown in the figure includes a casting box 1 and a sand box 16. A frame 2 is arranged at the rear end of the casting box 1. A supporting sliding mechanism is arranged inside the frame 2. A sleeve 20 is arranged inside the casting box 1. A resisting platform 36 is arranged in the middle at the rear end of the sleeve 20. Both ends of the inner side of the sleeve 20 are in contact with the bottom of the sand box 16 through vibration mechanisms arranged. Slide rail rods 17 are arranged on both sides of the outer wall of the sand box 16. Guide rods 7 are arranged on both sides of the upper surface of the casting box 1. Slide seats 11 are slidably installed on the outer sides of the two guide rods 7. An upper pressing seat 8 is jointly arranged between the two groups of slide seats 11. The upper surface of the upper pressing seat 8 is connected with a lower pressing mechanism through a connecting component arranged. Guide driving mechanisms are arranged on both sides of the outer wall of the upper pressing seat 8;

[0026] Both ends of the two slide rail rods 17 extend downward and the upper surfaces are set as curved surfaces. The lower ends of the guide driving mechanisms slide and press against the upper surfaces of the slide rail rods 17, enabling the sand box 16 to oscillate left and right.

[0027] The supporting sliding mechanism includes a bottom rod 6 fixedly arranged in the middle inside the frame 2. A supporting seat 4 is slidably installed above the outer side of the bottom rod 6. A bearing rod 3 is fixedly arranged at the upper end of the supporting seat 4. A lead screw 34 is threadedly connected above the inside of the supporting seat 4. One end of the lead screw 34 is rotationally matched with the outer side of the resisting platform 36. The end of the lead screw 34 far from the resisting platform 36 is connected with a motor 5. The motor 5 is installed on the outer side of the frame 2. Limit platforms 14 are fixedly arranged on both sides of the upper surface of the resisting platform 36. The bearing rod 3 is slidably matched with the limit platforms 14;

[0028] Refer to the attached instruction manual Figure 1 It can be seen that after the motor 5 is connected to the power supply, it drives the lead screw 34 to rotate, and then enables the supporting seat 4 to slide outside the bottom rod 6, prompting the bearing rod 3 at the upper end of the supporting seat 4 to move towards one side of the upper pressing seat 8, and subsequently pushing the sand box 16 away from the sleeve 20.

[0029] The vibration mechanism includes a support plate 24 fixedly arranged at one end of the inner side of the sleeve 20. The other side of the support plate 24 is connected with the inner bottom wall of the sleeve 20. Multiple vibration spring seats 28 are arranged on the upper surface of the support plate 24, and the vibration spring seats 28 are in contact with the bottom of the sand box 16;

[0030] Refer to the attached instruction manual Figure 3 It can be seen that the vibration spring seats 28 are in contact with the bottom of the sand box 16. During the extrusion process, the vibration spring seats 28 can greatly enhance the vibration effect, and then shake the sand grains inside the sand box 16 to compact the sand grains.

[0031] The connecting component includes two reinforcing rods 21 horizontally arranged on the upper surface of the upper pressing seat 8. An L-shaped rod 10 is fixedly arranged on the upper surface of the upper pressing seat 8 and near the connection of the two reinforcing rods 21. The L-shaped rod 10 is connected to the downward pressing mechanism. A grouting pipe 23 is installed and communicated inside the two reinforcing rods 21 and the upper pressing seat 8. Two support plates 22 are vertically arranged on the upper surface of the upper pressing seat 8. Slide plates 9 are slidably installed outside the two ends of the two support plates 22 away from each other. The slide plates 9 are arranged in an L shape;

[0032] Refer to the attached instructions Figure 1 and Figure 2 It can be seen that the two reinforcing rods 21 can enhance the stability of the upper pressing seat 8. The grouting pipe 23 can inject the poured slurry into the inside of the sand box 16, and then complete the casting mold;

[0033] When the sand box 16 is lifted, the slide plate 9 can slide to the outer edge of the sand box 16, and then the L-shaped slide plate 9 can abut against the lower edge of the sand box 16, and then the sand box 16 can be lifted from inside the casing 20.

[0034] The downward pressing mechanism includes a hydraulic cylinder 13. The telescopic end of the hydraulic cylinder 13 is connected to the lower end of the L-shaped rod 10. The bottom of the hydraulic cylinder 13 is fixedly arranged on the upper surface of the abutting platform 36;

[0035] Refer to the attached instructions Figure 1 and Figure 2 It can be seen that the hydraulic cylinder 13 can drive the L-shaped rod 10 to press down, so that the upper pressing seat 8 can press the sand grains above the inside of the sand box 16.

[0036] The guiding and driving mechanism includes a chute 35 opened on one side inside the upper pressing seat 8. A slider 29 is slidably installed inside the chute 35. A sleeve 15 is arranged on the lower surface of the slider 29. A compression spring 33 is arranged inside the sleeve 15. A resisting rod 30 is slidably installed inside the sleeve 15 and at the lower end of the compression spring 33. The bottom end of the resisting rod 30 is fixedly provided with a connecting rod 32. A ball 31 is arranged below the inside of the connecting rod 32. The ball 31 is in rolling contact with the surface of the slide rail rod 17. A support plate is fixedly arranged at one end outside the upper pressing seat 8. A cylinder 12 is installed outside the support plate. The telescopic end of the cylinder 12 is connected to the outside of the slider 29;

[0037] Refer to the attached instructions Figure 1 、 Figure 2 and Figure 4 It can be seen that under the telescopic drive of the cylinder 12, the slider 29 can slide inside the chute 35, so that the resisting rod 30 and the sleeve 15 can drive the ball 31 at the lower end to roll on the upper surface of the slide rail rod 17. Through the shape of the slide rail rod 17, the two ends of the sand box 16 are in an unbalanced state, and then the sand grains inside the sand box 16 can shake. And the intensity of the vibration of the sand box 16 can also be enhanced through the reciprocating lifting of the hydraulic cylinder 13.

[0038] A rotating shaft 27 is rotatably installed in the middle inside the casing 20. One end of the rotating shaft 27 away from the sand box 16 is rotatably fitted inside the abutting platform 36. Above the outer side of the rotating shaft 27, a U-shaped frame 26 is arranged. The U-shaped frame 26 abuts against the bottom of the sand box 16. Above both ends of the U-shaped frame 26, U-shaped clamping rods 25 are fixedly arranged. The two clamping rods 25 wrap around the front end and the rear end of the outer side of the sand box 16.

[0039] Refer to the attached instruction manual Figure 5 It can be seen that under the connection of the rotating shaft 27, the U-shaped frame 26 and the clamping rods 25 can wrap around the sand box 16. When the abutting rod 30 exerts pressure, the sand box 16 can be made to shake inside the casing 20.

[0040] On both sides inside the casing 20, limiting rods 18 are symmetrically slidably inserted. One end of the two limiting rods 18 on the same side extends into the clamping rod 25 movably. At the ends of the two limiting rods 18 on the same side away from the clamping rod 25, a U-shaped rod 19 is jointly arranged.

[0041] Refer to the attached instruction manual Figure 6 It can be seen that the limiting rods 18 can be inserted into the clamping rods 25 together through the externally connected U-shaped rods 19, thereby locking the clamping rods 25. When the upper pressing seat 8 presses the sand box 16, it can ensure that the sand box 16 does not tilt.

[0042] Working principle: During use, first fill a part of the sand grains below the inside of the sand box 16, then place the valve sand core of the shaping cavity on the surface of the sand grains, and then fill the sand grains to submerge the valve sand core. To ensure that the sand grains inside the sand box 16 can be more compacted, drive the hydraulic cylinder 13 to move downward, so that the sleeve 15 and the abutting rod 30 approach the corresponding slide rail rod 17. Then, make the ball 31 at the lower end inside the abutting rod 30 contact the upper surface of the slide rail rod 17. Since the upper surfaces of the slide rail rods 17 are not on the same horizontal plane and both ends bend and extend downward, the extrusion spring 33 inside the sleeve 15 will automatically adjust the contact height according to the slope during the contact process of the abutting rod 30. The sliders 29 on both sides of the upper pressing seat 8 can be driven alternately by the air cylinder 12. Thus, when the abutting rod 30 presses against the slide rail rod 17, the sand box 16 shows a left-right shaking effect. With the setting of the vibration spring seat 28, the sand grains inside the sand box 16 oscillate left and right to ensure that there are no voids inside the sand grains. Then, through the drive of the air cylinder 12, the sliders 29 are misaligned with the slide rail rod 17, and the hydraulic cylinder 13 can make the upper pressing seat 8 fit inside the sand box 16 to squeeze the sand grains above the inside of the sand box 16 from the upper end. When the upper pressing seat 8 squeezes the sand grains inside the sand box 16, to ensure that the sand box 16 can be pressurized, the worker can insert the U-shaped rod 19 and the limiting rod 18 into the clamping rod 25 to ensure the bearing capacity at the lower end of the sand box 16. Then, pour the casting slurry into the upper pressing seat 8 through the grouting pipe 23. The slurry flows to the periphery of the valve sand core to complete the casting work. After completion, push the slide plate 9 at the support plate 22 to the front and rear edges of the sand box 16, and then lift the sand box 16. After lifting it above the bearing rod 3, the motor 5 drives the lead screw 34 to rotate, causing the support seat 4 to move outside the bottom rod 6, pushing the support seat 4 and the bearing rod 3 to the bottom of the sand box 16. Then, place the sand box 16 at one end of the bearing rod 3. Subsequently, move the sand box 16 from above the inside of the casting box 1 to the front end, and the worker processes the cavity inside the sand box 16.

[0043] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A high-temperature resistant cut-off valve housing casting device, comprising a casting box (1) and a sand box (16), characterized in that: A frame (2) is arranged at the rear end of the casting box (1), a supporting sliding mechanism is arranged inside the frame (2), a sleeve (20) is arranged inside the casting box (1), a resisting platform (36) is arranged in the middle of the rear end of the sleeve (20), both ends of the inner side of the sleeve (20) are in contact with the bottom of the sand box (16) through vibration mechanisms, slide rail rods (17) are arranged on both sides of the outer wall of the sand box (16), guide rods (7) are arranged on both sides of the upper surface of the casting box (1), sliding seats (11) are slidably installed on the outer sides of the two guide rods (7), an upper pressing seat (8) is jointly arranged between the two groups of sliding seats (11), a lower pressing mechanism is connected to the upper surface of the upper pressing seat (8) through a connecting component arranged thereon, and guiding driving mechanisms are arranged on both sides of the outer wall of the upper pressing seat (8); Both ends of the two slide rail rods (17) extend downward and the upper surfaces are formed into curved surfaces, and the lower ends of the guiding driving mechanisms are in sliding contact with the upper surfaces of the slide rail rods (17), so that the sand box (16) can oscillate left and right; The guiding driving mechanism includes a chute (35) opened on one side inside the upper pressing seat (8), a slider (29) is slidably installed inside the chute (35), a sleeve (15) is arranged on the lower surface of the slider (29), a compression spring (33) is arranged inside the sleeve (15), a resisting rod (30) is slidably installed inside the sleeve (15) and at the lower end of the compression spring (33), a connecting rod (32) is fixedly arranged at the bottom end of the resisting rod (30), a ball (31) is arranged below the inside of the connecting rod (32), the ball (31) is in rolling contact with the surface of the slide rail rod (17), a supporting plate is fixedly arranged at one end of the outer side of the upper pressing seat (8), a cylinder (12) is installed on the outer side of the supporting plate, and the telescopic end of the cylinder (12) is connected to the outer side of the slider (29); The supporting sliding mechanism includes a bottom rod (6) fixedly arranged in the middle inside the frame (2), a supporting seat (4) is slidably installed above the outer side of the bottom rod (6), a bearing rod (3) is fixedly arranged at the upper end of the supporting seat (4), a lead screw (34) is threadedly connected above the inside of the supporting seat (4), one end of the lead screw (34) is rotationally matched with the outer side of the resisting platform (36), the end of the lead screw (34) far away from the resisting platform (36) is connected with a motor (5), the motor (5) is installed on the outer side of the frame (2), limiting platforms (14) are fixedly arranged on both sides of the upper surface of the resisting platform (36), and the bearing rod (3) is in sliding fit with the limiting platforms (14).

2. The high-temperature resistant cut-off valve housing casting device according to claim 1, characterized in that: The vibration mechanism includes a support plate (24) fixedly arranged at one end of the inner side of the sleeve (20), the other side of the support plate (24) is connected to the inner bottom wall of the sleeve (20), a plurality of vibration spring seats (28) are arranged on the upper surface of the support plate (24), and the vibration spring seats (28) are in contact with the bottom of the sand box (16).

3. The casting device for a high-temperature resistant cut-off valve housing according to claim 1, wherein: The connecting component includes two reinforcing rods (21) horizontally arranged on the upper surface of the upper pressing seat (8). A L-shaped rod (10) is fixedly arranged on the upper surface of the upper pressing seat (8) near the connection of the two reinforcing rods (21). The L-shaped rod (10) is connected to the downward pressing mechanism. A grouting pipe (23) is commonly installed and communicated inside the two reinforcing rods (21) and the upper pressing seat (8). Two support plates (22) are vertically arranged on the upper surface of the upper pressing seat (8). Sliding plates (9) are slidably installed outside the outer ends of the two support plates (22) away from each other. The sliding plates (9) are arranged in an L shape.

4. The casting device for a high-temperature resistant cut-off valve housing according to claim 3, wherein: The downward pressing mechanism includes a hydraulic cylinder (13). The telescopic end of the hydraulic cylinder (13) is connected to the lower end of the L-shaped rod (10). The bottom of the hydraulic cylinder (13) is fixedly arranged on the upper surface of the abutting platform (36).

5. The casting device for a high-temperature resistant cut-off valve housing according to claim 1, wherein: A rotating shaft (27) is rotatably installed in the middle inside the sleeve (20). One end of the rotating shaft (27) away from the sand box (16) is rotationally matched with the inside of the abutting platform (36). Above the outer side of the rotating shaft (27), a U-shaped frame (26) is arranged. The U-shaped frame (26) abuts against the bottom of the sand box (16). Above both ends of the U-shaped frame (26), U-shaped clamping rods (25) are fixedly arranged. The two clamping rods (25) wrap around the front end and the rear end of the outside of the sand box (16).

6. The casting device for a high-temperature resistant cut-off valve housing according to claim 5, wherein: On both sides inside the sleeve (20), limiting rods (18) are symmetrically and slidably inserted. One end of the two limiting rods (18) on the same side extends into the clamping rod (25) movably. A U-shaped rod (19) is commonly arranged at the ends of the two limiting rods (18) on the same side away from the clamping rod (25).

Images