Hollow refractory precast piece anti-settling pouring mold

Abstract

The utility model belongs to refractory production technical field, especially relates to a hollow refractory precast piece anti -settling casting mould, including bottom plate, side wall one, side wall two, pressing plate, mould core, center positioning rod, vibrating motor, the middle part of bottom plate is equipped with mould core, the outer periphery of mould core is equipped with the side wall one and side wall two that are connected with each other, the inner surface of side wall one and side wall two is equipped with taper, the bottom of side wall one and side wall two is engaged with the positioning convex edge on bottom plate, the top of mould core crimps pressing plate, center positioning rod passes through from pressing plate and mould core center, and is detachably connected with bottom plate, the both ends of pressing plate are respectively crimped with the top of side wall one and side wall two, bottom plate, mould core and side wall one and side wall two surround and form pouring cavity, a plurality of vibrating motors are arranged symmetrically outside side wall one and side wall two or are all uniformly arranged. The utility model changes the moving track of big particle by the introduction of multidirectional vibration, and relieves the particle settlement phenomenon caused by traditional unidirectional vibration.

Description

Technical Field

[0001] This utility model belongs to the field of refractory material production technology, and specifically relates to a hollow refractory preform anti-settlement casting mold. Background Technology

[0002] Casting is a very common production method in refractory material production and construction. Due to its flexible construction and simple production process, it has been widely adopted in major steel mills and refractory plants. Subsequent refractory material development has also mainly focused on casting systems, and most refractory components have gradually replaced the traditional machine-pressed production process.

[0003] Casting is generally divided into two types: direct casting on-site and casting using precast molds. Direct casting on-site involves mixing the castable refractory material at the steel plant construction site using a mixer, pouring it into the required location, and then completing the casting operation through gravity flow or manual assisted spreading. After natural curing, drying, and baking, it is ready for use. This method is generally used in larger construction projects such as the permanent and working linings of steel ladles. Casting using precast molds is generally completed at the refractory material production plant. The castable refractory material is mixed in a mixer, poured into a pre-prepared mold to create the desired specific shape, and then the production is completed through processes such as vibration degassing, natural curing, demolding, and baking.

[0004] Vibration is a crucial production process. Its purpose is to use vibration at a specific frequency to cause relative displacement of the particles, fine powder, and slurry within the castable, allowing for thorough mixing and promoting the upward movement of air bubbles to expel excess gas and increase the density of the castable. This process is typically performed simultaneously with the pouring stage. Current vibration processes involve placing the mold on a vibrating table and simultaneously pouring clay into the mold while the table vibrates back and forth. Since the vibrating table is at the bottom of the mold, bottom vibration primarily transmits energy through vertical vibration, causing the particles in the material to rearrange and expel gas. However, due to the large mass of large particles, they are accelerated downwards by inertia, easily leading to bottom accumulation. Fine powder and slurry rise upwards, ultimately causing overall particle segregation in the preform. After demolding, large areas of holes are frequently found on the sidewalls of the preform, severely affecting the product's appearance. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a casting mold for preventing settlement of hollow refractory preforms, thereby reducing surface defects of preforms and improving product quality.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A hollow refractory precast anti-settlement casting mold includes a base plate, a first side wall, a second side wall, a pressure plate, a mold core, a central positioning rod, and a vibration motor. The mold core is located in the middle of the base plate. The outer periphery of the mold core has two interconnected side walls. The inner surfaces of the first and second side walls are tapered. The bottoms of the first and second side walls engage with the positioning protrusions on the base plate. The top of the mold core is pressed against the pressure plate. The central positioning rod passes through the center of the pressure plate and the mold core and is detachably connected to the base plate. The two ends of the pressure plate are pressed against the tops of the first and second side walls, respectively. The base plate, the mold core, and the first and second side walls form a casting cavity. Multiple vibration motors are symmetrically or evenly arranged outside the first and second side walls.

[0008] The base plate has a protrusion that engages with a groove at the bottom of the mold core.

[0009] The positioning protrusion is arranged in a ring shape.

[0010] The outer surface of the positioning protrusion is a slope.

[0011] The first sidewall and the second sidewall are bolted together.

[0012] The taper of the inner surfaces of sidewall one and sidewall two is 1-3°.

[0013] The central positioning rod is connected to the base plate via a threaded connection.

[0014] The vibration motor is connected to side wall one or side wall two via a motor connecting plate.

[0015] Compared with existing technologies, the beneficial effects of this utility model are:

[0016] This invention features a vibration motor on the mold sidewall that generates its own vibration. In use, it works in conjunction with a vibration table to provide multi-directional vibration. This not only improves the efficiency of mud homogenization and air removal, but also alters the movement trajectory of large particles, mitigating particle settling caused by traditional unidirectional vibration and significantly improving the internal quality of the product. Simultaneously, the tapered inner sidewall of the mold facilitates the removal of air bubbles, reducing porosity defects on the surface of the preform and improving the product's external appearance. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of this utility model.

[0019] Figure 3 This is a cross-sectional view of the present invention.

[0020] Figure 4 This is a sectional view of the side wall.

[0021] In the diagram: 1. Base plate; 2. Side wall 1; 3. Side wall 2; 4. Pressure plate; 5. Mold core; 6. Center positioning rod; 7. Vibration motor; 8. Positioning flange; 9. Protrusion; 10. Motor connecting plate. Detailed Implementation

[0022] In the description of this utility model, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figures 1-4 A hollow refractory precast anti-settlement casting mold includes a base plate 1, side wall 1 2, side wall 2 3, pressure plate 4, mold core 5, central positioning rod 6, and vibration motor 7. The mold core 5 is located in the middle of the base plate 1. The mold core 5 has side wall 1 2 and side wall 2 3 connected to each other on its outer periphery. The inner surfaces of side wall 1 2 and side wall 2 3 are tapered. The bottom of side wall 1 2 and side wall 2 3 engages with the positioning protrusion 8 on the base plate 1. The top of the mold core 5 is pressed against the pressure plate 4. The central positioning rod 6 passes through the center of the pressure plate 4 and the mold core 5 and is detachably connected to the base plate 1. The two ends of the pressure plate 1 are pressed against the top of side wall 1 2 and side wall 2 3 respectively. The base plate 1, mold core 5, and side wall 1 2 and side wall 2 3 form a casting cavity. Multiple vibration motors 7 are symmetrically or evenly arranged outside side wall 1 2 and side wall 2 3.

[0025] The base plate 1 has a protrusion 9 that is connected to the groove at the bottom of the mold core 5.

[0026] The positioning protrusion 8 is arranged in a ring shape.

[0027] The outer surface of the positioning protrusion 8 is a slope.

[0028] The first side wall 2 and the second side wall 3 are bolted together.

[0029] The taper of the inner surfaces of sidewall 2 and sidewall 3 is 1-3°.

[0030] The central positioning rod 6 is connected to the base plate 1 by a threaded connection.

[0031] The vibration motor 7 is connected to side wall 2 or side wall 3 via motor connecting plate 10.

[0032] When in use, the above mold is placed on a vibration table, and the vibration motor 7 works in conjunction with the vibration table to vibrate or vibrate alternately to quickly expel the gas in the casting and prevent large particles from settling.

[0033] To make the objectives, technical solutions, and technical effects of this utility model clearer, the technical solutions in the embodiments of this utility model are now described clearly and completely. However, the embodiments described below are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art in conjunction with the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0034] Example:

[0035] A hollow refractory precast component anti-settlement casting mold, wherein the hollow refractory precast component is a steel ladle vent seat brick.

[0036] The system includes a base plate 1, side wall 1 2, side wall 2 3, pressure plate 4, mold core 5, center positioning rod 6, and vibration motor 7. The mold core 5 is located in the middle of the base plate 1, and its shape conforms to the requirements of the drawing for the inner hole of the steel ladle vent seat brick. The base plate 1 has a protrusion 9 that connects with the groove at the bottom of the mold core 5. The mold core 5 is a separate unit for easy demolding.

[0037] The outer periphery of the mold core 5 is provided with two interconnected square sidewalls, sidewall 1 2 and sidewall 2 3, which are bolted together. The base plate 1, sidewall 1 2, and sidewall 2 3 are all made of Q235 steel.

[0038] The inner surfaces of sidewall 1 (2) and sidewall 2 (3) are tapered at 2° to form a gas discharge channel. The upper surface of the base plate 1 is provided with positioning protrusions 8 on all four sides. The outer surface of the positioning protrusions 8 is inclined. The bottom of sidewall 1 (2) and sidewall 2 (3) engages with the positioning protrusions 8 on the base plate 1.

[0039] The mold core 5 is pressed against the top of the pressure plate 4. The center positioning rod 6 passes through the center of the pressure plate 4 and the mold core 5 and is threadedly connected to the base plate 1. The two ends of the pressure plate 1 are pressed against the tops of side wall 1 2 and side wall 2 3 respectively. The base plate 1, the mold core 5, and side walls 1 2 and 2 3 form a casting cavity with an inner circle and an outer square. Vibration motors 7 are symmetrically arranged on the side walls of side walls 1 2 and 2 3. The vibration motors have a power of 60W and a vibration frequency of 50Hz.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and basic spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A casting mold for preventing settlement of hollow refractory precast components, characterized in that, The system includes a base plate, side wall 1, side wall 2, pressure plate, mold core, central positioning rod, and vibration motors. The mold core is located in the middle of the base plate. Side wall 1 and side wall 2 are connected to each other around the outer periphery of the mold core. The inner surfaces of side wall 1 and side wall 2 are tapered. The bottom of side wall 1 and side wall 2 engages with the positioning protrusion on the base plate. The top of the mold core is pressed against the pressure plate. The central positioning rod passes through the center of the pressure plate and the mold core and is detachably connected to the base plate. The two ends of the pressure plate are pressed against the top of side wall 1 and side wall 2 respectively. The base plate, mold core, and side wall 1 and side wall 2 form a casting cavity. Multiple vibration motors are symmetrically or evenly arranged outside side wall 1 and side wall 2.

2. The anti-settlement casting mold for hollow refractory precast parts according to claim 1, characterized in that, The base plate has a protrusion that engages with a groove at the bottom of the mold core.

3. The anti-settlement casting mold for hollow refractory precast parts according to claim 1, characterized in that, The positioning protrusion is arranged in a ring shape.

4. The anti-settlement casting mold for hollow refractory precast parts according to claim 1, characterized in that, The outer surface of the positioning protrusion is a slope.

5. The anti-settlement casting mold for hollow refractory precast parts according to claim 1, characterized in that, The first sidewall and the second sidewall are bolted together.

6. The anti-settlement casting mold for hollow refractory precast components according to claim 1, characterized in that, The taper of the inner surfaces of sidewall one and sidewall two is 1-3°.

7. The anti-settlement casting mold for hollow refractory precast parts according to claim 1, characterized in that, The central positioning rod is connected to the base plate via a threaded connection.

8. The anti-settlement casting mold for hollow refractory precast parts according to claim 1, characterized in that, The vibration motor is connected to side wall one or side wall two via a motor connecting plate.

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