A demoulding auxiliary equipment for a cast prefabricated part mould for iron channels
The mold demolding auxiliary equipment, which combines the vibration of the motor eccentric block and the ejection of the electric push rod with the adjustment of the handwheel screw, solves the problem of strong adhesion during the demolding of cast precast parts for iron troughs, realizes efficient and non-destructive demolding operation, and improves production efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANSHAN SHENJIA REFRACTORY MATERIAL CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-07
AI Technical Summary
During the demolding process of cast precast components for iron troughs, the castable material has a strong adhesion to the inner wall of the mold. Traditional demolding methods are inefficient and easily damage the precast components and molds, making it difficult to meet the needs of efficient and high-quality production.
The motor and eccentric block work together to generate vibration to break the bonding force. Combined with the electric push rod to eject the preform, the mold flatness is adjusted by handwheel and screw to achieve stable installation and leveling of the mold.
It improves demolding efficiency, reduces damage to preforms and molds, ensures product quality and production efficiency, and meets the needs of large-scale industrial production.
Smart Images

Figure CN224464919U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold demolding technology, and in particular to an auxiliary device for demolding cast precast molds for iron trenches. Background Technology
[0002] In the metallurgical industry, the production of castable precast components for iron troughs is a crucial step in ensuring the smooth transport of molten iron during the ironmaking process. These precast components are typically cast using specialized molds; however, numerous challenges arise during demolding. On one hand, the castable material, after solidification, easily forms a strong bond with the mold's inner wall, making it difficult to remove the precast component smoothly. On the other hand, traditional demolding methods often rely on manual prying or simple lifting devices, which are not only inefficient but also prone to damaging the precast component and the mold, failing to meet the demands of high-efficiency, high-quality production. Therefore, designing a demolding auxiliary device that can effectively break the bond between the castable material and the mold, while also facilitating mold flatness adjustment to ensure smooth demolding, has become an urgent problem to be solved. Utility Model Content
[0003] The purpose of this utility model is to solve the problems mentioned in the background art and to propose an auxiliary device for demolding precast casting molds for iron trenches.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: an auxiliary device for demolding a casting precast part mold for iron trenches, comprising a mold body, a mold cavity provided on the mold body, a cavity provided at the bottom of the mold body, a motor provided on the side of the mold body, the motor being fixedly connected to the mold body via a mounting seat thereon, eccentric blocks being fixedly connected to the output shafts at both ends of the motor, two sets of electric push rods being fixedly connected to the top of the cavity, a top plate being fixedly connected to the output end of the electric push rods, and a groove being provided at the top of the protruding part inside the mold cavity, the top plate being retractable inside the groove.
[0005] Preferably, there are two motors, which are symmetrically distributed on both sides of the surface of the mold body.
[0006] Preferably, the mounting base has a mounting hole, and the mold body has a threaded groove at the position corresponding to the mounting hole. A bolt is inserted into the mounting hole, and the bottom end of the bolt is threadedly connected to the inside of the threaded groove.
[0007] Preferably, blocks are fixedly connected to the four corners of the bottom of the mold body, and threaded holes are opened on the blocks. A screw is threadedly connected to the inside of the threaded holes, a handwheel is fixedly connected to the top of the screw, and a foot is fixedly connected to the bottom of the screw.
[0008] Preferably, a handle sleeve is fixedly connected to the outer wall of the handwheel, and the handle sleeve is made of elastic rubber.
[0009] Preferably, the bottom of the foot is fixedly connected with anti-slip protrusions, which are evenly distributed on this surface.
[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0011] 1. In this utility model, through the cooperation of the motor and the eccentric block, after the motor starts, it drives the eccentric block on both output shafts to rotate at high speed. Since the center of gravity of the eccentric block is not in the center of rotation, it will generate periodic centrifugal force during rotation, thereby causing the entire mold body to vibrate. This vibration can be transmitted to the mold cavity, destroying the adhesion between the casting material and the inner wall of the mold, making it easier for the preform to detach from the inner wall of the mold, thus achieving smooth demolding. At the same time, with the cooperation of the electric push rod and the top plate, when it is necessary to remove the molded preform, the output end of the electric push rod extends, pushing the top plate to move upward and lift the molded sample, making it easier to eject the sample from the mold. This greatly improves the convenience of removing the sample from the mold cavity, effectively improves the demolding efficiency, reduces the damage to the preform and mold caused by demolding difficulties, and ensures product quality.
[0012] 2. In this utility model, through the cooperation of the handwheel, screw, and feet, the operator can turn the handwheel before pouring. The handwheel drives the screw to rotate, and the rotation of the screw will push the feet to move up and down. By observing the level of the mold body with measuring tools such as a level, the height of the feet can be changed by adjusting the screws at the four corners, thereby achieving the purpose of leveling the mold body. This avoids the situation where the pouring material is thicker on one side and thinner on the other due to the mold tilting, which helps to improve the molding quality of the precast parts and also provides a good foundation for the subsequent demolding operation. Attached Figure Description
[0013] Figure 1 This utility model provides a schematic diagram of an auxiliary device for demolding precast casting molds for iron trenches;
[0014] Figure 2 A bottom view of a demolding auxiliary device for casting precast parts molds for iron trenches is provided for this utility model;
[0015] Figure 3 This utility model provides an exploded view of an auxiliary device for demolding precast casting molds for iron trenches;
[0016] Figure 4 This utility model proposes an auxiliary device for demolding precast casting molds for iron trenches. Figure 3 Enlarged view of point A in the middle;
[0017] Figure 5A cross-sectional view of a demolding auxiliary device for casting precast parts for iron trenches is provided for this utility model;
[0018] Figure 6 This utility model proposes an auxiliary device for demolding precast casting molds for iron trenches. Figure 3 Enlarged view of section B in the middle.
[0019] Legend:
[0020] 1. Mold body; 2. Mold cavity; 3. Hollow cavity; 4. Motor; 5. Eccentric block; 6. Electric push rod; 7. Groove; 8. Block; 9. Threaded hole; 10. Screw; 11. Foot; 12. Handwheel; 13. Handle sleeve; 14. Top plate; 15. Mounting base; 16. Mounting hole; 17. Threaded groove; 18. Bolt; 19. Anti-slip protrusion. Detailed Implementation
[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0023] Example 1: As Figure 1 - Figure 5 As shown, this utility model provides a technical solution: an auxiliary device for demolding a casting precast part mold for iron trenches, including a mold body 1, a mold cavity 2 provided on the mold body 1, a cavity 3 provided at the bottom of the mold body 1, a motor 4 provided on the side of the mold body 1, the motor 4 being fixedly connected to the mold body 1 via a mounting seat 15, an eccentric block 5 being fixedly connected to the output shaft at both ends of the motor 4, two sets of electric push rods 6 being fixedly connected to the top of the cavity 3, a top plate 14 being fixedly connected to the output end of the electric push rod 6, a groove 7 being provided at the top of the protruding part inside the mold cavity 2, the top plate 14 being retractable inside the groove 7, two motors 4 being symmetrically distributed on both sides of the surface of the mold body 1, a mounting hole 16 being provided on the mounting seat 15, a threaded groove 17 being provided on the mold body 1 at the position corresponding to the mounting hole 16, a bolt 18 being inserted into the mounting hole 16, and the bottom end of the bolt 18 being threadedly connected inside the threaded groove 17.
[0024] In this embodiment, the vibration generated by motor 4 and eccentric block 5 significantly weakens the adhesion between the castable and the mold during the demolding stage. Compared with traditional demolding methods, there is no need for manual prying of the preform using tools, avoiding localized damage to the preform caused by uneven external force, thus ensuring the integrity and appearance quality of the preform. Moreover, the two motors 4 are symmetrically distributed on both sides of the surface of the mold body 1, making the vibration more uniform and stable, and acting on the castable in the mold cavity 2 from all directions, further improving the success rate and efficiency of demolding, reducing demolding time, and improving the overall production efficiency of castable preforms for iron trenches, meeting the needs of large-scale industrial production. At the same time, the electric push rod 6 and top plate 14 facilitate the ejection of the sample from the mold, greatly improving the efficiency of sample removal from the mold cavity 2. Convenience effectively improves demolding efficiency, reduces damage to preforms and molds caused by demolding difficulties, and ensures product quality. The motor 4 is fixed by a combination of mounting holes 16 on the mounting base 15, corresponding threaded grooves 17 on the mold body 1, and bolts 18 inserted into the mounting holes 16 and threadedly connected to the threaded grooves 17. This connection method makes the installation of the motor 4 on the mold body 1 very stable. Even when the motor 4 vibrates at high speed, it can be reliably fixed in the set position and will not loosen due to vibration. On the other hand, the bolt 18 connection facilitates the installation and removal of the motor 4. When the motor 4 malfunctions and needs to be repaired or replaced, the operator only needs to use the appropriate tools to unscrew the bolts 18 to easily remove the motor 4 from the mold body 1. The operation is simple and convenient.
[0025] Example 2: Figure 2 - Figure 3 As shown, blocks 8 are fixedly connected to the four corners of the bottom of the mold body 1. Threaded holes 9 are provided on the blocks 8. A screw 10 is threaded into the inside of the threaded holes 9. A handwheel 12 is fixedly connected to the top of the screw 10. A foot 11 is fixedly connected to the bottom of the screw 10. A handle sleeve 13 is fixedly connected to the outer wall of the handwheel 12. The handle sleeve 13 is made of elastic rubber. Anti-slip protrusions 19 are fixedly connected to the bottom of the foot 11. The anti-slip protrusions 19 are evenly distributed on this surface.
[0026] In this embodiment, through the cooperation of handwheel 12, screw 10, and foot 11, before pouring, the operator can rotate handwheel 12, which drives screw 10 to rotate. When screw 10 rotates, it pushes foot 11 to move up and down. By observing the level of mold body 1 with measuring tools such as a level, the height of foot 11 is changed by adjusting the screws 10 at the four corners, thereby achieving the purpose of leveling mold body 1. This avoids the situation where the pouring material is thicker on one side and thinner on the other due to mold tilt, which helps to improve the molding quality of preforms. It also provides a good foundation for subsequent demolding operations. When rotating handwheel 12, the handle sleeve 13 made of elastic rubber on handwheel 12 can improve the comfort of holding handwheel 12 and avoid discomfort to the hand. The anti-slip protrusion 19 at the bottom of foot 11 can effectively reduce the possibility of accidental displacement of mold body 1 during the entire operation of the equipment, whether it is bearing the weight of pouring material, shaking caused by motor 4 vibration during demolding, or other external interference, thus ensuring the overall stability of the equipment.
[0027] The working principle of this embodiment is as follows: Before pouring, the mold body 1 needs to be leveled. The operator first observes the initial placement of the mold body 1 and uses tools such as a level to determine the height of the four corners of the mold. If a corner is found to be too high or too low, the handwheel 12 at the corresponding corner position can be rotated. When the handwheel 12 rotates, it drives the screw 10, which is fixedly connected to it, to rotate together. Since the screw 10 is threadedly connected to the threaded hole 9 on the block 8, and the bottom end of the screw 10 is fixedly connected to the foot 11, the screw 10 will move up and down along the axial direction under the action of the threaded hole 9 when it rotates, thereby driving the foot 11 to move up and down. For example, if a corner needs to be raised, turn the handwheel 12 clockwise to move the screw 10 upward, raising the foot 11 accordingly; conversely, if a corner needs to be lowered, turn the handwheel 12 counterclockwise. By operating the handwheels 12 at the four corners of the bottom of the mold body 1, the height of each foot 11 is adjusted until the mold body 1 is level. The leveled mold provides a good foundation for subsequent casting and demolding operations, ensuring the smooth progress of the entire production process and the stable and reliable quality of the product. After casting the precast part and waiting for it to solidify and reach the demolding conditions, start the motor 4 installed on the side of the mold body 1. After the motor 4 is powered on, its output shafts at both ends begin to drive the fixedly connected eccentric block 5 to rotate at high speed. During the rotation, the eccentric block 5 generates periodic centrifugal force due to its eccentric structure. This centrifugal force is transmitted to the mold body 1, causing the entire mold body 1 to vibrate. Vibration is transmitted through the mold body 1 to the mold cavity 2, acting on the contact surface between the casting material and the inner wall of the mold, breaking the adhesion between them, and causing the casting material to gradually loosen from the inner wall of the mold. When the adhesion is broken to a certain extent, in order to remove the preform from the mold cavity 2 more thoroughly, the electric push rod 6 installed at the top of the cavity 3 is activated. After receiving the start signal, the output end of the electric push rod 6 begins to extend, pushing the top plate 14 fixedly connected to it to move upward. The top plate 14 rises along the direction of the groove 7, acting on the bottom of the protruding part of the preform in the mold cavity 2, giving the preform an upward ejection force, so that the preform overcomes the remaining adhesion force and is smoothly removed from the mold cavity 2. The whole process achieves efficient and non-destructive demolding operation through the synergistic action of the vibration of the motor 4 and the ejection of the electric push rod 6, ensuring the quality of the preform and the integrity of the mold, and making it more convenient to remove the preform from the mold cavity 2, reducing the workload of the staff.
[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A demolding auxiliary device for casting precast parts molds for iron trenches, comprising a mold body (1), characterized in that: The mold body (1) is provided with a mold cavity (2), the bottom of the mold body (1) is provided with a cavity (3), the side of the mold body (1) is provided with a motor (4), the motor (4) is fixedly connected to the mold body (1) through the mounting seat (15) on it, the output shafts at both ends of the motor (4) are fixedly connected with eccentric blocks (5), the top of the cavity (3) is fixedly connected with two sets of electric push rods (6), the output end of the electric push rods (6) is fixedly connected with a top plate (14), the top of the protruding part inside the mold cavity (2) is provided with a groove (7), and the top plate (14) can be retracted inside the groove (7).
2. The demolding auxiliary equipment for casting precast parts molds for iron trenches according to claim 1, characterized in that: There are two motors (4), which are symmetrically distributed on both sides of the surface of the mold body (1).
3. The demolding auxiliary equipment for casting precast parts molds for iron trenches according to claim 1, characterized in that: The mounting base (15) has a mounting hole (16), and the mold body (1) has a threaded groove (17) at the position corresponding to the mounting hole (16). A bolt (18) is inserted into the mounting hole (16), and the bottom end of the bolt (18) is threaded into the inside of the threaded groove (17).
4. The demolding auxiliary equipment for casting precast parts molds for iron trenches according to claim 1, characterized in that: The mold body (1) has four square blocks (8) fixedly connected at the four corners of its bottom. The square blocks (8) have threaded holes (9) and screws (10) are threaded inside the threaded holes (9). A handwheel (12) is fixedly connected to the top of the screw (10) and a foot (11) is fixedly connected to the bottom of the screw (10).
5. The demolding auxiliary equipment for casting precast parts molds for iron trenches according to claim 4, characterized in that: The outer wall of the handwheel (12) is fixedly connected to a handle sleeve (13), which is made of elastic rubber.
6. The demolding auxiliary equipment for casting precast parts molds for iron trenches according to claim 4, characterized in that: The bottom of the foot (11) is fixedly connected to an anti-slip protrusion (19), which is evenly distributed on this surface.