Automatic pouring device for high-strength valve casting process

Abstract

The utility model relates to an automatic pouring device for high-strength valve casting process, which comprises a loading plate, a moving plate and a containing tank, the moving plate is mounted at the top of the loading plate, the top of the moving plate is fixedly connected with a vertical frame, the side edge of the containing tank is fixedly connected with a movable shaft, the outer side of the vertical frame is fixedly connected with a fixed frame, and a servo motor is mounted at the top of the fixed frame. A reduction gearbox is installed at the top of the fixing frame, a first rotating shaft is arranged at the output end of the servo motor, a second rotating shaft is arranged at the output end of the reduction gearbox, a fixing base is fixedly connected to the top of the loading plate, a PLC is installed at the top of the fixing base, and a first transmission line is fixedly connected to the side edge of the PLC and connected with the servo motor. The side edge of the servo motor is provided with an encoder, the side edge of the encoder is fixedly connected with a second transmission line, the second transmission line is connected with a driver in the PLC, manual operation is replaced, the operation safety is guaranteed, the pouring process is stable, the operation quality is improved, and the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve casting, in particular to an automatic pouring device for a high-strength valve casting process. Background Art

[0002] Casting is a process of melting metal into liquid and pouring it into a mold, and then obtaining a casting with a predetermined shape, size and performance after cooling, solidification and cleaning. The casting of the valve body is an important part of the valve manufacturing process. The quality of the valve casting determines the quality of the valve. The commonly used processes in the valve industry are sand casting and investment casting. The utility model patent with application number: CN202122475536.7 discloses an automatic pouring device for high-strength and high-precision valve casting process, including a base plate, a walking wheel, a push handle, an electric control cabinet, a PLC controller, a pouring assembly, a mounting groove and a support assembly. There are multiple walking wheels, and the walking wheels are installed at the four corners below the base plate. The push handle is installed in the middle position of one side of the base plate. The electric control cabinet and the PLC controller are installed on the front side above the base plate. The pouring assembly is installed in the middle position above the base plate, and the mounting groove is opened in the middle position above the base plate. The mounting groove is located below the casting assembly, and the support assembly is installed inside the mounting groove. The casting assembly includes a vertical plate, a casting tank, a liquid outlet pipe, a filter sleeve, a fixed plate, a rotating motor and a filter screen. Two vertical plates are used, and the vertical plates are installed on the front and rear sides above the bottom plate. The two sides of the casting tank are installed above the vertical plates through shaft sleeves, and the main shaft on the front side of the casting tank passes through the front side of the vertical plate. The fixed plate is installed above the front side of the vertical plate. The rotating motor is installed on the fixed plate, and the output shaft of the rotating motor is connected to the main shaft on the front side of the casting tank through a coupling. The liquid outlet pipe is installed on the casting The injection tank is above the side away from the push handle, the upper end of the filter sleeve is installed at the lower end of the outer side of the liquid outlet pipe, and the filter is installed at the lower end inside the filter sleeve; the support assembly includes a mounting plate, a telescopic rod and a support plate, the mounting plate is installed at the lower part inside the mounting groove, two telescopic rods are used, and the telescopic rods are installed on both sides above the mounting plate, and the support plate is installed above the telescopic rod; the walking wheel is provided with a locking plate, the push handle is tilted, and the upper end of the push handle is tilted to the side away from the bottom plate, the electric control cabinet is connected to the mains through a wire, and the PLC controller is connected to the electric control cabinet through a wire; The plates are arranged in parallel, the upper end of the pouring tank is open, the liquid outlet pipe is connected to the interior of the pouring tank, and the liquid outlet pipe is inclined, with the end of the liquid outlet pipe facing away from the pouring tank tilted downward, the filter sleeve and the liquid outlet pipe are detachably connected, the rotating motor is connected to the electric control cabinet and the PLC controller respectively through wires, and the size of the filter screen matches the size of the filter sleeve; the size of the mounting plate matches the size of the mounting slot, the telescopic rod is connected to the electric control cabinet and the PLC controller respectively through wires, the support plate adopts a rectangular structure, and the support plate is arranged parallel to the lower end of the pouring tank. The PLC controller controls the rotating motor to turn on and run, and the rotating motor drives the pouring tank to rotate, pouring the molten metal in the pouring tank into the mold through the liquid outlet pipe. However, it is difficult for the rotating motor to directly act on the pouring tank. The rotating motor rotates too fast and has a small torque, making the pouring process extremely unstable. Utility Model Content

[0003] The utility model aims to solve the problems existing in the above-mentioned prior art and provides an automatic pouring device for high-strength valve casting process, which can replace manual operation to ensure operation safety, stabilize the pouring process to improve operation quality, save time and manpower and improve operation efficiency.

[0004] The utility model solves its technical problem by adopting the following technical solution: this automatic pouring device for high-strength valve casting process comprises a loading plate, a movable plate and a containing tank, wherein the movable plate is installed on the top of the loading plate, the containing tank is installed above the movable plate, the metal melt for valve casting is inside the containing tank, the top of the movable plate is fixedly connected with a stand, a movable hole is opened inside the stand, the side of the stand is fixedly connected with a bearing, the side of the containing tank is fixedly connected with a movable shaft, the movable shaft passes through the movable hole and is connected to the inner ring of the bearing, the outer side of the stand is fixedly connected with a fixed frame, a servo motor is installed on the top of the fixed frame, a reduction box is installed on the top of the fixed frame, a first rotating shaft is provided at the output end of the servo motor, the first rotating shaft is connected to the inside of the reduction box, a second rotating shaft is provided at the output end of the reduction box, a coupling is provided on the side of the second rotating shaft, the coupling is connected to the movable shaft, the top of the loading plate is fixedly connected with a fixed seat, the top of the fixed seat is installed with a PLC controller, the side of the PLC controller is fixedly connected with a first transmission line, the first transmission line is connected to the servo motor, and an encoder is provided on the side of the servo motor. A second transmission line is fixedly connected to the side of the encoder, and the second transmission line is connected to the driver inside the PLC controller. An inner groove is opened on the top of the fixed seat, and an armrest is fixedly connected inside the inner groove. A first moving wheel is set at the bottom of the loading plate. There are multiple first moving wheels. After the molten metal is loaded into the holding tank, the operator holds the armrest and pushes the loading plate to move a short distance as a whole. The loading plate and the holding tank reach the specified position. The PLC controller and the internal driver transmit instructions to the encoder through the second transmission line. The PLC controller starts the servo motor through the first transmission line. The first shaft rotates and acts on the inside of the reduction gearbox. At the same time, the second shaft rotates and drives the coupling, movable shaft and holding tank to rotate synchronously. The molten metal inside the holding tank is poured into the mold in front. After the pouring is completed, the servo motor runs in reverse to make the first shaft, second shaft, coupling, movable shaft and holding tank rotate in the opposite direction. The holding tank returns to its position and the pouring operation is completed. The whole process replaces manual operation to ensure operation safety. The pouring process is stable and improves operation quality, saving time and manpower and improving operation efficiency.

[0005] For further improvement, the container is placed between the two stands, and the distance between the container and the two stands is equal, which effectively guarantees the movable space of the container and avoids direct contact between the two stands.

[0006] For further improvement, there are two movable holes, two bearings and two movable shafts respectively, and the two movable shafts are on the same horizontal center line. The two movable shafts rotate coaxially to ensure that the rotation process of the container is smooth and avoid tilting of the container during rotation.

[0007] To be further improved, there are two handrails, and the two handrails have the same size and specifications, providing different operators with multiple options during the operation process, saving manpower and improving efficiency.

[0008] For further improvement, the top of the loading plate is fixedly connected to a first support seat, the first support seat is connected to the fixed seat, an electric cylinder is installed inside the first support seat, the piston rod of the electric cylinder is connected to the movable plate, and the bottom of the movable plate is fixedly connected to a second movable wheel, there are multiple second movable wheels, the electric cylinder extends or contracts to run, the multiple second movable wheels rotate, the piston rod of the electric cylinder pushes the movable plate to move forward or backward, the position of the container is adjusted, and the flexibility is increased while the container is away from the operation control area, further ensuring the safety of the operators.

[0009] For further improvement, a second support seat is fixedly connected to the top of the loading plate, and the second support seat and the first support seat are distributed on the left and right sides of the movable plate. An optical axis is fixedly connected to the inner side of the second support seat, and the optical axis passes through the interior of the two uprights. The optical axis is connected to the first support seat. An inner hole is opened inside the upright frame, and a linear bearing is arranged on the side of the upright frame. The optical axis is inside the inner hole and the linear bearing, and the optical axis interacts with the linear bearing. There are two optical axes, and the movable plate, the upright frame and the container move along the two optical axes. The interaction between the optical axis and the linear bearing provides effective limiting, improves stability and accuracy, and avoids position deviation of the movable plate, the upright frame and the container during movement.

[0010] To be further improved, a threaded hole is provided inside the fixing frame, which extends from the outside of the fixing frame to the inside of the vertical frame. A threaded column is threadedly connected to the inside of the threaded hole. A boss is fixedly connected to the side of the container. A groove is provided on the side of the boss. One end of the threaded column reaches the inside of the groove. The threaded column reaches the inside of the groove through the threaded hole. The container is temporarily fixed and locked to prevent the container from shaking back and forth, thereby further ensuring the safety of the working environment.

[0011] For further improvement, a handwheel is fixedly connected to the side of the threaded column, and a through hole is opened inside the handwheel. There are multiple through holes, and the handwheel provides effective force, which is convenient for the operator to hold and operate. The setting of multiple through holes saves handwheel materials and greatly reduces the weight of the handwheel.

[0012] The beneficial effects of the utility model are:

[0013] 1. After the molten metal is loaded into the holding tank, the operator holds the handrail and pushes the loading plate to move a short distance as a whole. The loading plate and the holding tank reach the designated position. The PLC controller and the internal driver transmit the instruction to the encoder through the second transmission line. The PLC controller turns on the servo motor through the first transmission line. The first shaft rotates and acts on the inside of the reduction gearbox. At the same time, the second shaft rotates and drives the coupling, movable shaft and holding tank to rotate synchronously. The molten metal inside the holding tank is poured into the mold in front. After the pouring is completed, the servo motor runs in the reverse direction to make the first shaft, second shaft, coupling, movable shaft and holding tank rotate in the opposite direction. The holding tank returns to its position and the pouring operation is completed. The whole process replaces manual operation to ensure operation safety. The pouring process is stable and improves operation quality, saving time and manpower and improving operation efficiency.

[0014] 2. The electric cylinder extends or contracts, and multiple second moving wheels rotate. The piston rod of the electric cylinder pushes the movable plate forward or backward, and the position of the container is adjusted. While increasing flexibility, the container is away from the operation control area, further ensuring the safety of the operators. The movable plate, stand and container move along two optical axes. The interaction between the optical axis and the linear bearing provides effective limit, improves stability and accuracy, and avoids position deviation of the movable plate, stand and container during movement.

[0015] 3. The threaded column passes through the threaded hole to reach the inside of the groove, and the container is temporarily fixed and locked to prevent the container from shaking back and forth, further ensuring the safety of the working environment. The handwheel provides effective force, making it convenient for operators to hold and operate. The setting of multiple through holes saves handwheel materials and greatly reduces the weight of the handwheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 For the utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 For the utility model Figure 1 Enlarged view of point B in the middle;

[0019] Figure 4 For the utility model Figure 1 Enlarged view of point C in the middle;

[0020] Figure 5 This is a front view of the structure of the utility model;

[0021] Figure 6 For the utility model Figure 5 Enlarged view of point D in the middle;

[0022] Figure 7 This is a diagram showing the activity of the threaded column of the present utility model;

[0023] Figure 8 This is a right side view of the structure of the utility model;

[0024] Figure 9 For the utility model Figure 8 Enlarged view of point E in the middle.

[0025] Explanation of the accompanying drawings: 1. Loading plate; 2. Moving plate; 3. Container; 4. Stand; 5. Movable hole; 6. Bearing; 7. Movable shaft; 8. Fixed frame; 9. Servo motor; 10. Reducer; 11. First rotating shaft; 12. Second rotating shaft; 13. Coupling; 14. Fixed seat; 15. PLC controller; 16. First transmission line; 17. Encoder; 18. Second transmission line; 19. Inner groove; 20. Armrest; 21. First moving wheel; 22. First supporting seat; 23. Electric cylinder; 24. Second moving wheel; 25. Second supporting seat; 26. Optical axis; 27. Inner hole; 28. Linear bearing; 29. Threaded hole; 30. Threaded column; 31. Boss; 32. Groove; 33. Handwheel; 34. Through hole. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-9 This embodiment is further described:

[0027] like Figure 1-9As shown: In this embodiment, an automatic pouring device for a high-strength valve casting process includes a loading plate 1, a movable plate 2 and a holding tank 3. The movable plate 2 is installed on the top of the loading plate 1, and the holding tank 3 is installed above the movable plate 2. The molten metal for valve casting is inside the holding tank 3. The top of the movable plate 2 is fixedly connected to a stand 4, and a movable hole 5 is opened inside the stand 4. The side of the stand 4 is fixedly connected to a bearing 6, and the side of the holding tank 3 is fixedly connected to a movable shaft 7. The movable shaft 7 passes through the movable hole 5 and is connected to the inner ring of the bearing 6. The outside of the stand 4 is fixedly connected to a fixed frame 8, and a servo motor 9 is installed on the top of the fixed frame 8. A reduction box 10 is installed on the top of the fixed frame 8. The output end of the servo motor 9 is provided with a first rotating shaft 11, and the first rotating shaft 11 is connected to the inside of the reduction box 10. The output end of the reduction box 10 is provided with a second rotating shaft 12, and a coupling 13 is provided on the side of the second rotating shaft 12. The movable shaft 7 is connected, the top of the loading plate 1 is fixedly connected to a fixed seat 14, the top of the fixed seat 14 is installed with a PLC controller 15, the side of the PLC controller 15 is fixedly connected to a first transmission line 16, the first transmission line 16 is connected to the servo motor 9, the side of the servo motor 9 is provided with an encoder 17, the side of the encoder 17 is fixedly connected to a second transmission line 18, the second transmission line 18 is connected to the driver inside the PLC controller 15, an inner groove 19 is provided on the top of the fixed seat 14, the inner groove 19 is fixedly connected with an armrest 20, a first moving wheel 21 is provided at the bottom of the loading plate 1, there are multiple first moving wheels 21, the filling tank 3 is between the two stands 4, and the distance from the filling tank 3 to the two stands 4 is equal, there are two movable holes 5, bearings 6 and movable shafts 7 respectively, the two movable shafts 7 are on the same horizontal center line, there are two armrests 20, and the two armrests 20 have the same size specifications.

[0028] like Figure 1 、 Figure 3 、 Figure 4 and Figure 5 As shown: a first support seat 22 is fixedly connected to the top of the loading plate 1, and the first support seat 22 is connected to the fixed seat 14. An electric cylinder 23 is installed inside the first support seat 22, and the piston rod of the electric cylinder 23 is connected to the movable plate 2. A second movable wheel 24 is fixedly connected to the bottom of the movable plate 2. There are multiple second movable wheels 24. A second support seat 25 is fixedly connected to the top of the loading plate 1. The second support seat 25 and the first support seat 22 are distributed on the left and right sides of the movable plate 2. An optical axis 26 is fixedly connected to the inside of the second support seat 25. The optical axis 26 passes through the interior of the two vertical frames 4. The optical axis 26 is connected to the first support seat 22. An inner hole 27 is opened inside the vertical frame 4. A linear bearing 28 is provided on the side of the vertical frame 4. The optical axis 26 is inside the inner hole 27 and the linear bearing 28. The optical axis 26 interacts with the linear bearing 28. There are two optical axes 26.

[0029] like Figure 5 、 Figure 6 、 Figure 7 and Figure 9 As shown: a threaded hole 29 is opened inside the fixing frame 8, and the threaded hole 29 extends from the outside of the fixing frame 8 to the inside of the stand 4. A threaded column 30 is threadedly connected inside the threaded hole 29. A boss 31 is fixedly connected to the side of the container 3. A groove 32 is opened on the side of the boss 31. One end of the threaded column 30 reaches the inside of the groove 32. A handwheel 33 is fixedly connected to the side of the threaded column 30. A through hole 34 is opened inside the handwheel 33. There are multiple through holes 34.

[0030] When the utility model is in use: after the molten metal is loaded into the holding tank 3, the operator holds the handrail 20 and pushes the loading plate 1 to move a short distance as a whole, and the loading plate 1 and the holding tank 3 reach the designated position. The operator controls the electric cylinder 23 through the PLC controller 15, and the electric cylinder 23 extends and runs, and the multiple second moving wheels 24 rotate. The piston rod of the electric cylinder 23 pushes the moving plate 2 to move forward, and the holding tank 3 is adjusted in position. The moving plate 2, the stand 4 and the holding tank 3 move along the two optical axes 26. The optical axis 26 and the linear bearing 28 interact to provide effective limiting, improve stability and accuracy, and avoid position deviation of the moving plate 2, the stand 4 and the holding tank 3 during the movement. The holding tank 3 is away from the operation control area, and the PLC controller 15 and the internal driver transmit instructions to the encoder 17 through the second transmission line 18. The PLC controller 15 transmits instructions to the encoder 17 through the second transmission line 18. The servo motor 9 is turned on through the first transmission line 16, the first rotating shaft 11 rotates and acts on the inside of the reduction gearbox 10, and at the same time the second rotating shaft 12 rotates and drives the coupling 13, the movable shaft 7 and the holding tank 3 to rotate synchronously, and the molten metal inside the holding tank 3 is poured into the mold in the front. After the pouring is completed, the servo motor 9 runs in the opposite direction to make the first rotating shaft 11, the second rotating shaft 12, the coupling 13, the movable shaft 7 and the holding tank 3 rotate in the opposite direction, and the holding tank 3 returns to its position and completes the pouring operation. The whole process replaces manual operation to ensure the safety of the operation, the stability of the pouring process improves the operation quality, saves time and manpower and improves the operation efficiency. The operator holds the handwheel 33 and rotates it clockwise, and the threaded column 30 passes through the threaded hole 29 to the inside of the groove 32, and the holding tank 3 is temporarily fixed and locked to prevent the holding tank 3 from shaking back and forth, further ensuring the safety of the working environment.

[0031] While the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. An automatic pouring device for high-strength valve casting process, comprising a loading plate (1), a moving plate (2) and a holding tank (3), characterized by: The movable plate (2) is mounted on the top of the loading plate (1), the holding tank (3) is mounted above the movable plate (2), the metal melt for valve casting is inside the holding tank (3), the top of the movable plate (2) is fixedly connected to a stand (4), a movable hole (5) is opened inside the stand (4), a bearing (6) is fixedly connected to the side of the stand (4), a movable shaft (7) is fixedly connected to the side of the holding tank (3), the movable shaft (7) passes through the movable hole (5) and is connected to the inner ring of the bearing (6), the outer side of the stand (4) is fixedly connected to a fixed frame (8), a servo motor (9) is mounted on the top of the fixed frame (8), a reduction box (10) is mounted on the top of the fixed frame (8), a first rotating shaft (11) is provided at the output end of the servo motor (9), the first rotating shaft (11) is connected to the inside of the reduction box (10), and a second rotating shaft (12) is provided at the output end of the reduction box (10). ), a coupling (13) is provided on the side of the second rotating shaft (12), the coupling (13) is connected to the movable shaft (7), a fixing seat (14) is fixedly connected to the top of the loading plate (1), a PLC controller (15) is installed on the top of the fixing seat (14), a first transmission line (16) is fixedly connected to the side of the PLC controller (15), the first transmission line (16) is connected to the servo motor (9), an encoder (17) is provided on the side of the servo motor (9), a second transmission line (18) is fixedly connected to the side of the encoder (17), the second transmission line (18) is connected to the driver inside the PLC controller (15), an inner groove (19) is provided on the top of the fixing seat (14), a handrail (20) is fixedly connected inside the inner groove (19), a first moving wheel (21) is provided at the bottom of the loading plate (1), and there are multiple first moving wheels (21).

2. The automatic pouring device for high-strength valve casting process according to claim 1, characterized in that: The container (3) is located between the two vertical racks (4), and the distances between the container (3) and the two vertical racks (4) are equal.

3. The automatic pouring device for high-strength valve casting process according to claim 1, characterized in that: There are two movable holes (5), two bearings (6) and two movable shafts (7), and the two movable shafts (7) are on the same horizontal center line.

4. The automatic pouring device for high-strength valve casting process according to claim 1, characterized in that: There are two handrails (20), and the two handrails (20) have the same size and specifications.

5. The automatic pouring device for high-strength valve casting process according to claim 1, characterized in that: The top of the loading plate (1) is fixedly connected to a first support seat (22), the first support seat (22) is connected to a fixed seat (14), an electric cylinder (23) is installed inside the first support seat (22), the piston rod of the electric cylinder (23) is connected to the movable plate (2), and the bottom of the movable plate (2) is fixedly connected to a second movable wheel (24), and there are multiple second movable wheels (24).

6. The automatic pouring device for high-strength valve casting process according to claim 5, characterized in that: The top of the loading plate (1) is fixedly connected to a second support seat (25), the second support seat (25) and the first support seat (22) are distributed on the left and right sides of the movable plate (2), the inner side of the second support seat (25) is fixedly connected to an optical axis (26), the optical axis (26) passes through the inside of the two vertical frames (4), the optical axis (26) is connected to the first support seat (22), an inner hole (27) is opened inside the vertical frame (4), a linear bearing (28) is provided on the side of the vertical frame (4), the optical axis (26) is inside the inner hole (27) and the linear bearing (28), the optical axis (26) and the linear bearing (28) interact with each other, and there are two optical axes (26).

7. The automatic pouring device for high-strength valve casting process according to claim 1, characterized in that: A threaded hole (29) is provided inside the fixing frame (8), and the threaded hole (29) extends from the outside of the fixing frame (8) to the inside of the stand (4). A threaded column (30) is threadedly connected inside the threaded hole (29). A boss (31) is fixedly connected to the side of the container (3). A groove (32) is provided on the side of the boss (31), and one end of the threaded column (30) reaches the inside of the groove (32).

8. The automatic pouring device for high-strength valve casting process according to claim 7, characterized in that: The side of the threaded column (30) is fixedly connected with a hand wheel (33), and a through hole (34) is opened inside the hand wheel (33), and there are multiple through holes (34).

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