Multifunctional stripping device for investment casting

Abstract

The utility model relates to foundry technology field discloses multifunctional stripping device for investment casting, including frame, the frame top fixedly connected with bottom plate, both ends of bottom plate top are all fixedly connected with fixed plate, both ends of two fixed plate top are all fixedly connected with T block, four T blocks outside are all connected with slide plate slidingly, between every same side two slide plates are all fixedly connected with connecting plate, one side of two connecting plates is all fixedly connected with clamping solid plate, two connecting plate bottom are all fixedly connected with support block, one side of two support blocks is all rotatably connected with push rod no.

Description

Technical Field

[0001] This utility model relates to the field of casting technology, and in particular to a multifunctional demolding device for investment casting. Background Technology

[0002] Investment casting, with its advantages of high precision and adaptability to complex structures, is widely used in the manufacturing of precision castings in aerospace, medical devices, jewelry, and other fields. In traditional demolding processes, mold clamping relies on manual labor or simple fixtures, which are prone to displacement during ejection. The ejection method is often crude, frequently resulting in casting damage, incomplete demolding of complex mold cavities, and the need for manual cleaning of residues. This is inefficient, pollutes subsequent processes, and involves separate operations at each stage with insufficient automation. Against this backdrop, multi-functional demolding devices integrating clamping, ejection, and slag removal functions have become a key direction for overcoming process bottlenecks and promoting the upgrading of investment casting. In the existing technology, manual clamping has shortcomings. It relies on manual clamping, and manual operation is inefficient, labor-intensive, and the clamping effect varies greatly among different operators. In addition, it cannot be well adapted to molds of different sizes.

[0003] In terms of debris handling, manual cleaning is not only time-consuming and labor-intensive, but also incomplete. Residual debris can easily contaminate subsequent processes or scratch castings. Furthermore, the spread of dust and debris during the cleaning process affects the working environment and may also endanger the health of operators, making it difficult to meet the requirements of clean production. Therefore, a multi-functional demolding device for investment casting is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a multifunctional demolding device for investment casting, which aims to improve the problems of needing to manually clamp molds of different sizes and manually cleaning up residual debris after demolding.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multifunctional demolding device for investment casting, comprising a frame, a base plate fixedly connected to the top of the frame, fixed plates fixedly connected to both ends of the top of the base plate, T-shaped blocks fixedly connected to both ends of the top of the two fixed plates, sliding plates slidably connected to the exterior of the four T-shaped blocks, a connecting plate fixedly connected between the two sliding plates on each side, a clamping plate fixedly connected to one side of the two connecting plates, a support block fixedly connected to the bottom of the two connecting plates, a push rod rotatably connected to one side of the two support blocks, a rotating plate rotatably connected to the top of the base plate, two push rods rotatably connected to both ends of the rotating plate, a cylinder 2 fixedly installed at the top of the base plate, a push rod 2 rotatably connected to the output end of the cylinder 2, one end of the push rod 2 rotatably connected to one end of the rotating plate, a support plate 3 fixedly connected between the two fixed plates, a lower mold provided on the top of the support plate 3, and a demolding assembly provided inside the frame.

[0006] As a further description of the above technical solution: Support plates are fixedly connected to both ends of the top of the frame. A slag suction assembly is provided on the top of the two support plates. The slag suction assembly includes a horizontal plate, which is fixedly connected to the top of the two support plates. A sliding groove is fixedly connected to the top of the horizontal plate, and a support frame is fixedly connected to the top of the horizontal plate. A motor is fixedly installed on the top of the support frame. A connecting rod is fixedly connected to the output end of the motor. A connecting rod is rotatably connected to one end of the connecting rod. A slider is rotatably connected to one end of each of the two connecting rods. The slider is slidably connected inside the sliding groove. A suction head is fixedly connected to the bottom of the slider. A waste frame is fixedly connected to the top of the horizontal plate. A suction fan is fixedly installed on the outside of the waste frame. A filter screen is engaged at the input end of the suction fan. A ventilation pipe is fixedly connected to the middle of the waste frame, and the ventilation pipe passes through the inside of the horizontal plate.

[0007] As a further description of the above technical solution: the demolding assembly includes a cylinder one, which is fixedly installed inside the frame. The output end of the cylinder one is fixedly connected to a support plate two. The top two ends of the support plate two are fixedly connected to push rods. The two push rods pass through the top of the frame and pass through the interior of the lower mold.

[0008] As a further description of the above technical solution: one end of the ventilation pipe is fixedly connected to the middle of the suction head, and the suction head is located above the lower mold.

[0009] As a further description of the above technical solution: the horizontal plate is fixedly connected to the top two ends of the two support plates, and the bottom plate is located at the bottom two ends of the two support plates.

[0010] As a further description of the above technical solution: the lower mold is disposed between two clamping plates, and the second cylinder is located on one of the connecting plates.

[0011] As a further description of the above technical solution: the filter screen is fixedly installed on the inner wall of the waste frame, and the support frame is located on the rear side of the chute.

[0012] As a further description of the above technical solution: the two top rods are located at both ends of the rotating plate, and the rotating plate is located at the top center of the bottom plate.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the clamping mechanism achieves automatic clamping through a cylinder-driven connecting rod and sliding mechanism. The clamping force is controllable and stable, avoiding the force deviation caused by manual operation. This prevents damage to the mold due to excessive tightness or displacement due to excessive looseness, and is also suitable for molds of different sizes.

[0014] 2. In this utility model, the debris handling relies on an automated slag suction component. The suction head moves back and forth with a wide coverage area. Combined with negative pressure adsorption, it can simultaneously clean up the debris generated during demolding. No manual subsequent cleaning is required, which not only improves efficiency but also avoids residual debris from contaminating the process or scratching the castings, improves the working environment, and meets the needs of clean production. Attached Figure Description

[0015] Figure 1 This is a first-view perspective three-dimensional schematic diagram of the multifunctional demolding device for investment casting proposed in this utility model. Figure 2 This is a schematic diagram of the connecting plate of the multifunctional demolding device for investment casting proposed in this utility model; Figure 3 This is a schematic diagram of the rotating plate of the multifunctional demolding device for investment casting proposed in this utility model; Figure 4 This is a schematic diagram of the cylinder structure of the multifunctional demolding device for investment casting proposed in this utility model; Figure 5 This is a schematic diagram of the structure of the horizontal plate of the multifunctional demolding device for investment casting proposed in this utility model.

[0016] Legend: 1. Motor; 2. Connecting rod one; 3. Support frame; 4. Slider; 5. Slide groove; 6. Suction fan; 7. Waste box; 8. Ventilation pipe; 9. Horizontal plate; 10. Connecting rod two; 11. Support plate one; 12. Suction head; 13. Connecting plate; 14. Support block; 15. Frame; 16. Cylinder one; 17. Base plate; 18. Clamping plate; 19. Fixing plate; 20. T-block; 21. Slide plate; 22. Rotating plate; 23. Cylinder two; 24. Push rod one; 25. Push rod two; 26. Support plate two; 27. Top rod; 28. Lower mold; 29. ​​Support plate three; 30. Filter screen. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Reference Figures 1-3This utility model provides an embodiment of a multifunctional demolding device for investment casting, comprising a frame 15, with a base plate 17 fixedly connected to the top of the frame 15. The frame 15 provides a stable support foundation for the entire device, ensuring reliable installation and positioning of each component and improving the overall structural rigidity of the device. Fixed plates 19 are fixedly connected to both ends of the top of the base plate 17, providing a rigid guide foundation for the sliding plate 21 and ensuring the stability of the clamping mechanism. T-blocks 20 are fixedly connected to both ends of the top of the two fixed plates 19, forming a sliding fit with the sliding plate 21, providing precise guidance for the movement of the sliding plate 21 and preventing displacement during clamping. Each of the four T-blocks 20 has a sliding plate 21 slidably connected to its top exterior. The sliding plate 21 slides smoothly along the T-blocks 20, enabling the connecting plate 13 to move stably and ensuring the opening and closing of the clamping plate 18 is smooth and without jamming. A connecting plate 13 is fixedly connected between each pair of sliding plates 21 on the same side, ensuring that the movement of the two sliding plates 21 is consistent, making the clamping plate 18 move symmetrically, clamping more evenly, preventing loosening under clamping force, and improving the durability of the mechanism. Two connecting plates 13 are fixedly connected to the top of two sliding plates 21, and clamping plates 18 are fixedly connected to one side of each connecting plate 13. The clamping plates 18 directly contact the mold, increasing the contact area. Support blocks 14 are fixedly connected to the bottom of each connecting plate 13. Support block 14 stably transmits the force of push rod 1 24 to connecting plate 13, ensuring effective transmission of clamping power and reliable clamping force. Push rod 1 24 is rotatably connected to one side of each of the two support blocks 14. Push rod 1 24 converts the swing of rotating plate 22 into linear motion of support block 14, driving clamping plate 18 to open and close, realizing automated clamping. The top of bottom plate 17 is rotatably connected to rotating plate 22, ensuring symmetrical opening and closing of clamping plate 18 and balanced clamping force. Both push rods 1 24 are rotatably connected to both ends of rotating plate 22. Rotary connection avoids motion interference and ensures smooth power transmission. Cylinder 2 23 is fixedly installed at the top of bottom plate 17. Cylinder 2 23 provides automated power, replacing manual clamping. The cylinder 23 is rotatably connected to a push rod 25 at its output end. The push rod 25 converts the linear motion of the cylinder 23 into the rotation of the rotating plate 22, thereby changing the direction of power and driving the clamping mechanism to clamp. One end of the push rod 25 is rotatably connected to one end of the rotating plate 22. The rotatable connection adapts to the difference in the motion trajectory between the push rod 25 and the rotating plate 22. A support plate 3 29 is fixedly connected between the two fixed plates 19. The support plate 3 29 provides a stable support platform for the mold to be demolded, ensuring that the mold is fixed in position during clamping and demolding. A lower mold 28 is set on the top of the support plate 3 29, providing a stable support platform for the lower mold 28. A demolding component is set inside the frame 15.

[0019] Reference Figure 1 and Figure 5Support plates 11 are fixedly connected to the top two ends of the frame 15, providing a stable support foundation for the slag suction assembly and ensuring the stability of the slag suction component's installation position. Slag suction assemblies are set at the top ends of the two support plates 11, integrating debris cleaning functions to achieve simultaneous demolding and slag suction without the need for separate manual cleaning. The slag suction assembly includes a horizontal plate 9, which is fixedly connected to the top of the two support plates 11. A slide groove 5 is fixedly connected to the top of the horizontal plate 9 to provide sliding guidance for the slider 4, ensuring that the slider 4 drives the suction head 12 to move smoothly back and forth, expanding the slag suction coverage area. A support frame 3 is fixedly connected to the top of the horizontal plate 9 to stably support the motor 1 and reduce the vibration impact of the motor 1 during operation. The motor 1 is fixedly installed on the top of the support frame 3 to provide power for the reciprocating movement of the suction head 12, realizing the automated movement of the suction head 12. A connecting rod 2 is fixedly connected to the output end of the motor 1, transmitting the rotational motion of the motor 1 to the connecting rod 2 10, realizing effective power transmission and driving the suction head 12 to move. One end of the connecting rod 2 is rotatably connected to the connecting rod 2 10, transmitting the rotational motion of the motor 1 to the connecting rod 2 10. The motion is converted into linear motion of slider 4, driving suction head 12 to reciprocate. Slider 4 is rotatably connected to one end of each of the two connecting rods 10. This rotatable connection adapts to changes in the motion trajectory, ensuring smooth power transmission to slider 4. Slider 4 is slidably connected inside the slide groove 5, sliding directionally along the groove to ensure precise movement of suction head 12. Suction head 12 is fixedly connected to the bottom of slider 4, directly adsorbing debris generated during demolding and expanding the cleaning range with its movement. A waste frame 7 is fixedly connected to the top of the horizontal plate 9, and the outer side of the waste frame 7 is fixed... A suction fan 6 is fixedly installed to generate negative pressure suction, which sucks in debris through the ventilation pipe 8 and the suction head 12, realizing automated slag removal and replacing manual cleaning. The input end of the suction fan 6 is fitted with a filter screen 30 to intercept debris and prevent it from entering the suction fan 6 and causing damage. The middle of the waste box 7 is fixedly connected to the ventilation pipe 8 to form a debris conveying channel, which guides the debris adsorbed by the suction head 12 to the waste box 7 to ensure that the slag removal path is unobstructed. The ventilation pipe 8 runs through the inside of the horizontal plate 9 to make the layout of the ventilation pipe 8 compact and avoid interference with other components.

[0020] Reference Figures 1-4 The demolding assembly includes cylinder 16, which is fixedly installed inside frame 15 to provide a stable power source for the ejection mechanism, replacing manual operation. Support plate 26 is fixedly connected to the output end of cylinder 16, which evenly transmits the driving force of the cylinder to the ejector rods 27 on both sides, avoiding uneven force on a single ejector rod 27 and ensuring balanced and stable ejection action. Ejector rods 27 are fixedly connected to both ends of the top of support plate 26. The double ejector rods 27 are designed to push the casting from both sides simultaneously, so that the casting is subjected to balanced force. The two ejector rods 27 pass through the top of frame 15 to ensure that the movement path of the ejector rods 27 is unobstructed. The two ejector rods 27 pass through the inside of the lower mold 28, and the ejector rods 27 directly act on the casting in the mold, accurately transmitting the ejection force and ensuring that the casting is smoothly released from the mold cavity.

[0021] Reference Figure 1 and Figure 5 One end of the ventilation pipe 8 is fixedly connected to the middle of the suction head 12 to ensure that the debris can be stably transported to the waste box 7 through the ventilation pipe 8. The suction head 12 is located above the lower mold 28 and can be directly aimed at the debris generated when the lower mold 28 is demolded, thus shortening the adsorption path.

[0022] Reference Figure 1 and Figure 5 The horizontal plate 9 is fixedly connected to the top two ends of the two support plates 11. The horizontal plate 9 is more stable and the force is balanced by fixing it at both ends, so that it can stably support the slag suction assembly. The bottom plate 17 is located at the bottom two ends of the two support plates 11, so that the bottom plate 17 and the support plates 11 form a structure that corresponds to each other vertically and is symmetrically distributed.

[0023] Reference Figures 1-3 The lower mold 28 is positioned between two clamping plates 18, allowing the two clamping plates 18 to clamp symmetrically from both sides of the lower mold 28, ensuring balanced force and preventing mold offset or tilting. This ensures the mold remains stable during ejection and demolding. The second cylinder 23 is located on one of the connecting plates 13, improving the response speed of the clamping action. At the same time, the compact layout saves space.

[0024] Reference Figure 1 and Figure 5 The filter screen 30 is fixedly installed on the inner wall of the waste frame 7 to ensure that the sucked-in debris is effectively intercepted and to prevent the debris from entering the suction fan 6 with the airflow and causing damage. The support frame 3 is located on the rear side of the slide 5 to ensure that the slider 4 drives the suction head 12 to move smoothly back and forth along the slide 5, while the component layout is reasonably planned.

[0025] Reference Figures 1-4 Two ejector rods 27 are located at both ends of the rotating plate 22. When ejecting, they can apply force synchronously from both ends of the bottom of the mold, so that the casting is subjected to balanced force. The rotating plate 22 is located at the top center of the bottom plate 17. The rotating plate 22 is centrally positioned so that the push rods 24 at both ends are subjected to symmetrical force, which can drive the clamping plates 18 on both sides to clamp the mold synchronously and evenly.

[0026] Working principle: The lower mold 28 to be demolded is placed on the support plate 29. The casting is embedded in the lower mold 28. After the cylinder 23 is started, the output end pushes the push rod 25, causing the rotating plate 22 to rotate around the rotation point of the base plate 17. The push rods 24 at both ends of the rotating plate 22 swing with the rotating plate 22, pulling the support block 14 and driving the connecting plate 13 to move. The connecting plate 13 slides on the T-block 20 through the slide plate 21, driving the clamping plates 18 on both sides. The clamping structure can move towards the middle, clamping the two sides of the lower mold 28 and fixing the mold position to prepare for subsequent ejection. The cylinder 16 is started, and the output end pushes the support plate 26 upward. The push rod 27 on the support plate 26 passes through the frame 15 and the lower mold 28, lifting the casting upward and separating it from the lower mold 28, completing the demolding action.

[0027] For residue cleaning, motor 1 starts, and the output end drives connecting rod 1 to rotate. Connecting rod 1 to rotate connecting rod 2, thereby pushing slider 4 to make reciprocating linear motion in the slide groove 5. The suction head 12 at the bottom of slider 4 moves with slider 4, covering the area above the lower mold 28 to expand the residue suction range. Simultaneously, the suction fan 6 starts to generate negative pressure through ventilation pipe 8 and suction head 12, sucking in the residue and debris generated during demolding. It is then transported to waste frame 7 through ventilation pipe 8. The filter screen 30 in waste frame 7 intercepts impurities and prevents debris from entering suction fan 6. The cleaned air is discharged to keep the working environment clean.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multifunctional demolding device for investment casting, comprising a frame (15), characterized in that: The frame (15) is fixedly connected to a base plate (17) at the top. Fixed plates (19) are fixedly connected to both ends of the top of the base plate (17). T-shaped blocks (20) are fixedly connected to both ends of the top of the two fixed plates (19). Slide plates (21) are slidably connected to the outside of each of the four T-shaped blocks (20). A connecting plate (13) is fixedly connected between each pair of slide plates (21) on the same side. A clamping plate (18) is fixedly connected to one side of each of the two connecting plates (13). A support block (14) is fixedly connected to the bottom of each of the two connecting plates (13). A rotating plate (14) is fixedly connected to one side of each of the two support blocks (14). A push rod (24) is rotatably connected to the top of the base plate (17), and a rotating plate (22) is rotatably connected to the top of the base plate (17). Two push rods (24) are rotatably connected to both ends of the rotating plate (22). A cylinder (23) is fixedly installed at the top of the base plate (17). A push rod (25) is rotatably connected to the output end of the cylinder (23). One end of the push rod (25) is rotatably connected to one end of the rotating plate (22). A support plate (29) is fixedly connected between the two fixed plates (19). A lower mold (28) is provided on the top of the support plate (29). A demolding assembly is provided inside the frame (15).

2. The multifunctional demolding device for investment casting according to claim 1, characterized in that: The top two ends of the frame (15) are fixedly connected to support plates (11). A slag suction assembly is provided on the top of each of the two support plates (11). The slag suction assembly includes a horizontal plate (9), which is fixedly connected to the top of the two support plates (11). A sliding groove (5) is fixedly connected to the top of the horizontal plate (9). A support frame (3) is fixedly connected to the top of the horizontal plate (9). A motor (1) is fixedly installed on the top of the support frame (3). A connecting rod (2) is fixedly connected to the output end of the motor (1). The connecting rod (2)... The two connecting rods (10) are rotatably connected to each other. The two connecting rods (10) are rotatably connected to a slider (4) at one end. The slider (4) is slidably connected inside the slide groove (5). The bottom of the slider (4) is fixedly connected to a suction head (12). The top of the horizontal plate (9) is fixedly connected to a waste frame (7). A suction fan (6) is fixedly installed on the outside of the waste frame (7). A filter screen (30) is engaged at the input end of the suction fan (6). A ventilation pipe (8) is fixedly connected in the middle of the waste frame (7). The ventilation pipe (8) runs through the inside of the horizontal plate (9).

3. The multifunctional demolding device for investment casting according to claim 1, characterized in that: The demolding assembly includes a cylinder (16), which is fixedly installed inside the frame (15). The output end of the cylinder (16) is fixedly connected to a support plate (26). The top two ends of the support plate (26) are fixedly connected to push rods (27). The two push rods (27) pass through the top of the frame (15) and pass through the lower mold (28).

4. The multifunctional demolding device for investment casting according to claim 2, characterized in that: One end of the ventilation pipe (8) is fixedly connected to the middle of the suction head (12), and the suction head (12) is located above the lower mold (28).

5. The multifunctional demolding device for investment casting according to claim 2, characterized in that: The horizontal plate (9) is fixedly connected to the top two ends of the two support plates (11), and the bottom plate (17) is located at the bottom two ends of the two support plates (11).

6. The multifunctional demolding device for investment casting according to claim 3, characterized in that: The lower mold (28) is set between two clamping plates (18), and the second cylinder (23) is located on one of the connecting plates (13).

7. The multifunctional demolding device for investment casting according to claim 2, characterized in that: The filter screen (30) is fixedly installed on the inner wall of the waste frame (7), and the support frame (3) is located on the rear side of the slide (5).

8. The multifunctional demolding device for investment casting according to claim 3, characterized in that: The two top rods (27) are located at both ends of the rotating plate (22), which is located at the top center of the bottom plate (17).

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