Directional ejection device for large castings

Abstract

The utility model relates to foundry goods demoulding technical field, and specifically is large -scale foundry goods directional demoulding device, including operation platform, upper die, middle die and lower mould, the operation platform inside bottom end bolted connection has the cylinder, when want to demould to the foundry goods of forming, upper die and middle die remove from lower mould in proper order, the cylinder drives transmission frame to move longitudinally downward, then transmission frame drives support rod to move, make support rod drive sealing block to pass through the fixed hole A that operation platform surface opened and remove into operation platform inboard, the servo motor outside transmission frame drives two -way screw rod to rotate through the speed reducer, the thread sleeve A and thread sleeve B outside two -way screw rod axial opposite movement, the driving plate A and driving plate B on the jackscrew correspond fixed hole A that operation platform on symmetrically opened, then the cylinder in operation platform drives transmission frame to move longitudinally upward, the jackscrew promotes the foundry goods of forming in lower mould to move, thereby convenient to demoulding treatment to the foundry goods, improve the processing efficiency of foundry goods.

Description

Technical Field

[0001] This utility model relates to the field of casting demolding technology, specifically to a large casting directional demolding device. Background Technology

[0002] Castings are metal shaped objects obtained by various casting methods. They are objects with a certain shape, size and properties obtained by pouring, injecting, sucking or other casting methods into a pre-prepared mold after smelting liquid metal, cooling and then grinding.

[0003] Patent No. 202323517056.8 discloses a demolding device for large cast iron castings. The device forms a seal by opening a through hole at the bottom of the lower mold and installing a plunger. The plunger is a detachable structure. After the plunger is removed, the lifting block passes through the through hole to push out the molded product in the cavity. The demolding process is simple.

[0004] However, when using existing demolding devices for large cast iron castings, the upper, middle and lower molds are hoisted in sequence using a hoisting mechanism. Then, the screws inside the lower mold are removed, and the lower mold is placed on the operating table. The casting formed inside the lower mold is then ejected using a cylinder to complete the demolding. However, the demolding process for the casting formed inside the lower mold is cumbersome and labor-intensive, which has a certain impact on the processing efficiency of the casting. Therefore, a directional demolding device for large castings is needed. Utility Model Content

[0005] In view of the problems in the background art, this utility model provides a large casting directional demolding device.

[0006] The technical solution adopted by this utility model to solve its technical problem is a large casting directional demolding device, including an operating table, an upper mold, a middle mold, and a lower mold. A cylinder is bolted to the bottom of the operating table, and a transmission frame is bolted to the power output end of the cylinder. A servo motor is bolted to the outside of the transmission frame, and a reducer is flanged to the power output end of the servo motor. A double-acting lead screw is keyed to one side of the reducer. Threaded sleeves A and B are threaded to the outside of the double-acting lead screw. A drive plate A is welded to the outside of threaded sleeve A, and a drive plate B is welded to the outside of threaded sleeve B. A push rod and a support rod are welded to the outside of both drive plates A and B. A fixing hole B is opened at the bottom of the lower mold, and a sealing block is inserted into the inside of the fixing hole B. The bottom of the sealing block is welded to the end of the push rod. A fixing hole A aligned with the fixing hole B is opened on the surface of the operating table.

[0007] By adopting the above technical solution, when demolding the formed casting, the upper mold and the middle mold move out from the lower mold in sequence. Then, the cylinder inside the operating table drives the transmission frame to move longitudinally downward. The transmission frame then drives the support rod to move, causing the support rod to move the sealing block out of the fixing hole B opened at the bottom of the lower mold. Subsequently, the sealing block moves into the inner side of the operating table through the fixing hole A opened on the surface of the operating table. Then, the servo motor outside the transmission frame drives the bidirectional lead screw to rotate through the reducer. Then, the threaded sleeves A and B outside the bidirectional lead screw move in opposite directions on the outer axis of the bidirectional lead screw. Finally, the threaded sleeve A drives the drive plate. As A moves, the threaded sleeve B drives the drive plate B to move, causing the sealing block on the support rod to move outside the operating table. At this time, the push rods on the drive plate A and drive plate B correspond to the symmetrically opened fixing holes A on the operating table. Then, the cylinder inside the operating table drives the transmission frame to move longitudinally upward. Then, the transmission frame drives the two sets of push rods to pass through the symmetrically opened fixing holes A on the operating table. Then, the push rods enter the fixing holes A opened at the bottom of the lower mold, causing the push rods to push the casting formed in the lower mold to move, thereby facilitating the demolding process of the casting and improving the processing efficiency of the casting.

[0008] Specifically, the operating table surface is symmetrically welded with a limiting plate A and a limiting plate B, and the inner sides of the limiting plate A and the limiting plate B are provided with protrusions to increase the friction of the lower mold surface.

[0009] By adopting the above technical solution, when the lower mold is placed on the operating table, the limiting plate A and the limiting plate B symmetrically installed on the operating table limit the lower mold. The limiting plate A and the limiting plate B are provided with protrusions to increase the friction on the surface of the lower mold, thereby improving the stability of the lower mold on the operating table.

[0010] Specifically, the upper mold, middle mold, and lower mold are all symmetrically welded with lifting lugs on their exteriors.

[0011] By adopting the above technical solution, when it is necessary to move the upper mold, middle mold and lower mold, the hoisting mechanism is in contact with the symmetrically welded lifting lugs on the outside of the upper mold, middle mold and lower mold, which facilitates the hoisting and handling of the upper mold, middle mold and lower mold.

[0012] Specifically, the operating table has symmetrically provided limit grooves on its inner side, and a slider is slidably connected to the inner side of the limit groove. The end of the slider is welded to the outside of the transmission frame.

[0013] By adopting the above technical solution, when the transmission frame moves inside the operating table, the sliders symmetrically welded to the outside of the transmission frame slide within the symmetrically opened limiting grooves inside the operating table, thereby improving the stability of the longitudinal movement of the transmission frame.

[0014] Specifically, the input terminals of the servo motor and the cylinder are both electrically connected to the power supply terminal of an external power source.

[0015] By adopting the above technical solution, the electrical equipment can operate normally by connecting to an external power source, and all electrical equipment is controlled by the PLC controller.

[0016] The beneficial effects of this utility model are:

[0017] (1) In the large casting directional demolding device of this utility model, when the formed casting needs to be demolded, the upper mold and the middle mold move out from the lower mold in sequence. Then, the cylinder in the operating table drives the transmission frame to move longitudinally downward. Then, the transmission frame drives the support rod to move, so that the support rod drives the sealing block to move out from the fixing hole B opened at the bottom of the lower mold. Then, the sealing block moves into the inner side of the operating table through the fixing hole A opened on the surface of the operating table. Then, the servo motor outside the transmission frame drives the bidirectional lead screw to rotate through the reducer. Then, the threaded sleeve A and the threaded sleeve B outside the bidirectional lead screw move in opposite directions on the outer axis of the bidirectional lead screw. Drive plate A moves, and threaded sleeve B moves drive plate B, causing drive plates A and B to move the sealing block on the support rod outside the operating table. At this time, the push rods on drive plates A and B correspond to the symmetrically opened fixing holes A on the operating table. Then, the cylinder inside the operating table drives the transmission frame to move longitudinally upward. Then, the transmission frame drives the two sets of push rods to pass through the symmetrically opened fixing holes A on the operating table. Then, the push rods enter the fixing holes A opened at the bottom of the lower mold, causing the push rods to push the casting formed in the lower mold to move, thereby facilitating the demolding of the casting and improving the processing efficiency of the casting.

[0018] (2) In the large casting directional demolding device of this utility model, when the lower mold is placed on the operating table, the limiting plate A and the limiting plate B installed symmetrically on the operating table limit the lower mold. The limiting plate A and the limiting plate B are provided with protrusions to increase the friction on the surface of the lower mold, thereby improving the stability of the lower mold on the operating table. Attached Figure Description

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

[0020] Figure 1 This is a schematic diagram of the overall structure of the large casting directional demolding device of this utility model;

[0021] Figure 2 This is an exploded view of the internal structure of the operating table of the large casting directional demolding device of this utility model;

[0022] Figure 3 This is a schematic diagram of the bottom structure of the lower mold of the large casting directional demolding device of this utility model.

[0023] In the diagram: 1. Upper mold; 2. Lifting lug; 3. Middle mold; 4. Limiting plate A; 5. Operating table; 6. Limiting groove; 7. Slider; 8. Transmission frame; 9. Servo motor; 10. Lower mold; 11. Cylinder; 12. Fixing hole A; 13. Reducer; 14. Two-way lead screw; 15. Drive plate A; 16. Threaded sleeve A; 17. Support rod; 18. Drive plate B; 19. Push rod; 20. Threaded sleeve B; 21. Sealing block; 22. Fixing hole B; 23. Limiting plate B; 24. Protrusion. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] To improve the processing efficiency of castings, as one embodiment of this utility model, such as Figures 1 to 3 As shown, the large casting directional demolding device of this utility model includes an operating platform 5, an upper mold 1, a middle mold 3, and a lower mold 10. A cylinder 11 is bolted to the bottom of the operating platform 5. A transmission frame 8 is bolted to the power output end of the cylinder 11. A servo motor 9 is bolted to the outside of the transmission frame 8, and a reducer 13 is flanged to the power output end of the servo motor 9. A bidirectional lead screw 14 is keyed to one side of the reducer 13, and a threaded connection is made to the outside of the bidirectional lead screw 14. The mold consists of a sleeve A16 and a threaded sleeve B20. A drive plate A15 is welded to the outside of the threaded sleeve A16, and a drive plate B18 is welded to the outside of the threaded sleeve B20. A push rod 17 and a support rod 19 are welded to the outside of both the drive plate A15 and the drive plate B18. A fixing hole B22 is opened at the bottom of the lower mold 10, and a sealing block 21 is inserted into the inside of the fixing hole B22. The bottom of the sealing block 21 is welded to the end of the push rod 17. A fixing hole A12 aligned with the fixing hole B22 is opened on the surface of the operating table 5.

[0026] In use, when demolding the formed casting, the upper mold 1 and the middle mold 3 move out of the lower mold 10 in sequence. Then, the cylinder 11 inside the operating table 5 drives the transmission frame 8 to move longitudinally downward. The transmission frame 8 then drives the support rod 19 to move, causing the support rod 19 to move the sealing block 21 out of the fixing hole B22 at the bottom of the lower mold 10. Subsequently, the sealing block 21 moves into the inside of the operating table 5 through the fixing hole A12 on the surface of the operating table 5. Then, the servo motor 9 outside the transmission frame 8 drives the bidirectional lead screw 14 to rotate through the reducer 13. Then, the threaded sleeves A16 and B20 outside the bidirectional lead screw 14 move in opposite directions axially outside the bidirectional lead screw 14. Then, the threaded sleeve A16 drives the drive plate A15 to move. When the threaded sleeve B20 moves, it drives the drive plate B18 to move, causing the drive plate A15 and drive plate B18 to move the sealing block 21 on the support rod 19 to the outside of the operating table 5. At this time, the push rods 17 on the drive plate A15 and drive plate B18 correspond to the symmetrically opened fixing holes A12 on the operating table 5. Then, the cylinder 11 in the operating table 5 drives the transmission frame 8 to move longitudinally upward. Then, the transmission frame 8 drives the two sets of push rods 17 to pass through the symmetrically opened fixing holes A12 on the operating table 5. Then, the push rods 17 enter the fixing holes A12 opened at the bottom of the lower mold 10, so that the push rods 17 push the casting formed in the lower mold 10 to move, thereby facilitating the demolding of the casting and improving the processing efficiency of the casting.

[0027] To improve the stability of the lower mold 10 on the operating table 5, for example, such as Figure 1 As shown, this utility model also includes a limiting plate A4 and a limiting plate B23 symmetrically welded to the surface of the operating table 5. The inner sides of the limiting plate A4 and the limiting plate B23 are provided with protrusions 24 to increase the friction of the lower mold 10 surface.

[0028] When in use, when the lower mold 10 is placed on the operating table 5, the limiting plate A4 and the limiting plate B23 symmetrically installed on the operating table 5 limit the lower mold 10. The limiting plate A4 and the limiting plate B23 are provided with protrusions 24 to increase the friction on the surface of the lower mold 10, thereby improving the stability of the lower mold 10 on the operating table 5.

[0029] For the hoisting and handling of the upper mold 1, middle mold 3, and lower mold 10, exemplarily, as follows: Figure 1 As shown, the present invention also includes lifting lugs 2 symmetrically welded to the exterior of the upper mold 1, the middle mold 3 and the lower mold 10.

[0030] When in use, when it is necessary to move the upper mold 1, the middle mold 3 and the lower mold 10, the lifting mechanism is used to contact the lifting lugs 2 that are symmetrically welded to the outside of the upper mold 1, the middle mold 3 and the lower mold 10, so as to facilitate the lifting and handling of the upper mold 1, the middle mold 3 and the lower mold 10.

[0031] To improve the stability of the longitudinal movement of the transmission frame 8, for example, such as Figure 1As shown, the present invention also includes a limiting groove 6 symmetrically formed on the inner side of the operating table 5, and a slider 7 slidably connected to the inner side of the limiting groove 6, the end of the slider 7 being welded to the outside of the transmission frame 8.

[0032] When in use, as the transmission frame 8 moves within the operating table 5, the sliders 7 symmetrically welded to the outside of the transmission frame 8 slide within the symmetrically opened limiting grooves 6 inside the operating table 5, thereby improving the stability of the longitudinal movement of the transmission frame 8.

[0033] For electrical equipment to function properly, for example, such as Figure 1 , Figure 2 As shown, the present invention also includes that the input terminals of the servo motor 9 and the cylinder 11 are both electrically connected to the power supply terminal of an external power source.

[0034] When in use, the electrical equipment works normally by connecting to an external power source, and all electrical equipment is controlled by the PLC controller.

[0035] In use, this utility model first utilizes a hoisting mechanism to contact the symmetrically welded lifting lugs 2 on the outer surfaces of the upper mold 1 and the middle mold 3, sequentially hoisting the upper mold 1 and the middle mold 3 so that they are moved out of the lower mold 10. Then, the cylinder 11 inside the operating platform 5 drives the transmission frame 8 to move longitudinally downwards. The transmission frame 8 then drives the support rod 19 to move, causing the support rod 19 to move the sealing block 21 out of the fixing hole B22 at the bottom of the lower mold 10. Subsequently, the sealing block 21 passes through the fixing hole A12 on the surface of the operating platform 5 and moves into the inner side of the operating platform 5. The upper diameter of the fixing hole B22 is smaller than the lower diameter, allowing the sealing block 21 to seal the fixing hole B22. The upper diameter is the same as the inner diameter of the fixing hole A12. Then, the servo motor 9 outside the transmission frame 8 drives the bidirectional lead screw 14 to rotate through the reducer 13. The bidirectional lead screw 14 is installed in the bearing seat of the transmission frame 8 through a deep groove ball bearing. The bearing seat is welded to the inner wall of the transmission frame 8. The threaded sleeve A16 and the threaded... The support blocks welded to the bottom of sleeve B20 slide in the grooves opened at corresponding positions inside the transmission frame 8. Then, the threaded sleeves A16 and B20 outside the double-acting screw 14 move in opposite directions axially outside the double-acting screw 14. Then, the threaded sleeve A16 drives the drive plate A15 to move, and the threaded sleeve B20 drives the drive plate B18 to move, so that the drive plate A15 and drive plate B18 drive the sealing block 21 on the support rod 19 to move outside the operating table 5. At this time, the push rods 17 on the drive plate A15 and drive plate B18 correspond to the fixing holes A12 symmetrically opened on the operating table 5. Then, the cylinder 11 inside the operating table 5 drives the transmission frame 8 to move longitudinally upward. Then, the transmission frame 8 drives the two sets of push rods 17 to pass through the fixing holes A12 symmetrically opened on the operating table 5 respectively. Then, the push rods 17 enter the fixing holes A12 opened at the bottom of the lower mold 10, so that the push rods 17 push the casting formed inside the lower mold 10 to move, thereby facilitating the demolding process of the casting and improving the processing efficiency of the casting.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A large casting directional demolding device, characterized in that, The system includes an operating platform (5), an upper mold (1), a middle mold (3), and a lower mold (10). The operating platform (5) has a cylinder (11) bolted to its bottom interior. The cylinder (11) has a transmission frame (8) bolted to its power output end. The transmission frame (8) has a servo motor (9) bolted to its exterior. The servo motor (9) has a reducer (13) flanged to its power output end. The reducer (13) has a double-ended lead screw (14) keyed to one side. The double-ended lead screw (14) has threaded sleeves A (16) and B (20) threaded to its exterior. The threaded sleeve A (16) is welded to the outside of a drive plate A (15), the threaded sleeve B (20) is welded to the outside of a drive plate B (18), and the drive plate A (15) and drive plate B (18) are both welded to the outside of a push rod (17) and a support rod (19). The bottom of the lower mold (10) is provided with a fixing hole B (22), and a sealing block (21) is inserted into the inside of the fixing hole B (22). The bottom of the sealing block (21) is welded to the end of the push rod (17). The surface of the operating table (5) is provided with a fixing hole A (12) aligned with the fixing hole B (22).

2. The large casting directional demolding device according to claim 1, characterized in that, The operating table (5) is symmetrically welded with a limiting plate A (4) and a limiting plate B (23). The inner sides of the limiting plate A (4) and the limiting plate B (23) are provided with protrusions (24) to increase the friction of the lower mold (10) surface.

3. The large casting directional demolding device according to claim 1, characterized in that, The upper mold (1), middle mold (3) and lower mold (10) are all symmetrically welded with lifting lugs (2).

4. The large casting directional demolding device according to claim 1, characterized in that, The operating table (5) has symmetrically provided limiting grooves (6) on its inner side, and a slider (7) is slidably connected to the inner side of the limiting groove (6). The end of the slider (7) is welded to the outside of the transmission frame (8).

5. The large casting directional demolding device according to claim 1, characterized in that, The input terminals of the servo motor (9) and cylinder (11) are both electrically connected to the power supply terminal of an external power source.

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