Composite precision casting sand box and vibration compaction system

Abstract

The utility model relates to the technical field of casting equipment, and discloses a composite precision casting sand box and a vibration compaction system, which mainly comprise an upper half box body and a lower half box body tightly connected with the upper half box body, replaceable ceramic fiber boards are arranged on the inner walls of the upper half box body and the lower half box body, and the ceramic fiber boards are arranged on the lower half box body. The ceramic fiber boards have good high temperature resistance and heat insulation effect, the inner wall of the sand box can be effectively protected from being damaged by high-temperature molten metal, in addition, spiral reinforcing ribs are specially designed on the outer wall of the lower half box body, the structural strength of the sand box can be enhanced through the reinforcing ribs, and the service life of the sand box is prolonged. The replaceable ceramic fiber plates are arranged on the inner walls of the upper half box body and the lower half box body, so that the heat resistance of the sand box can be effectively improved, and the service life of the sand box is prolonged. The spiral reinforcing ribs on the outer wall of the lower half box body can improve the structural strength and stability of the sand box and resist pressure and vibration generated in the casting process.

Description

Technical Field

[0001] This utility model relates to the field of casting equipment technology, specifically to a composite precision casting sand box and vibration compaction system. Background Technology

[0002] In the field of precision casting, the sand box is a crucial component in the casting process. It is used to support and fix the sand mold to form the external shape of the casting.

[0003] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0004] Traditional sand molds are typically made of metal materials, such as cast iron or steel. While these materials possess good mechanical strength and durability, during high-temperature casting processes, metal sand molds are susceptible to thermal stress, leading to deformation, cracking, or even damage. Furthermore, the high thermal conductivity of metal sand molds can result in uneven temperature distribution within the sand mold, negatively impacting the quality of the castings. Utility Model Content

[0005] The purpose of this invention is to provide a composite precision casting sand box and vibration compaction system to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a composite precision casting sand box, which mainly consists of an upper half box and a lower half box closely connected to it. Replaceable ceramic fiber boards are installed on the inner walls of both the upper and lower half box. These ceramic fiber boards have good high-temperature resistance and heat insulation effect, which can effectively protect the inner wall of the sand box from damage by high-temperature molten metal. In addition, the outer wall of the lower half box is specially designed with spiral reinforcing ribs. These reinforcing ribs can enhance the structural strength of the sand box and ensure that the sand box can withstand the weight of sand and molten metal and the impact force during the vibration compaction process during casting.

[0007] At the bottom of the lower half of the casting box, honeycomb-shaped vents are designed to effectively expel gases from inside the sand box, preventing air bubbles from forming during the casting process and affecting the quality of the castings. Simultaneously, inclined venting grooves are provided on the side walls of both the upper and lower halves of the casting box. These grooves, together with the honeycomb-shaped vents at the bottom, form a three-dimensional venting channel, further optimizing the gas discharge path. To better control the air pressure inside the sand box, an adjustable vent plug is also provided at the top of the upper half of the casting box. By adjusting the opening and closing degree of the vent plug, the air pressure inside the sand box can be flexibly controlled, ensuring the smooth progress of the casting process.

[0008] At the joint between the upper and lower halves of the sand box, a stepped sealing groove and a high-temperature resistant rubber strip are specially designed. The high-temperature resistant rubber strip is precisely embedded in the stepped sealing groove. This structural design not only ensures good sealing performance of the sand box in high-temperature environments, but also withstands the test of high temperature and pressure during the casting process, ensuring the sealing effect of the sand box and preventing molten metal leakage.

[0009] To further enhance the connection stability between the upper and lower sandboxes, a fixing hoop is installed at the connection point. The fixing hoop consists of two semi-circular hoops, which are tightly connected by fixing bolts to form a robust ring structure, ensuring that the sandbox will not shift or deform during vibration compaction.

[0010] Inside the fixing clamps, specially designed rubber protective pads fit snugly against the upper and lower halves of the sand box. These rubber protective pads not only act as a buffer, reducing the impact of vibration on the sand box, but also prevent molten metal from splashing out during vibration, protecting the safety of operators.

[0011] This utility model also relates to a vibration compaction system, which includes several vibration motors, pressure sensors, and elastic support mechanisms. These components work closely with a composite precision casting sand box to jointly complete the vibration compaction work during the casting process.

[0012] A vibration motor, pressure sensor, and elastic support mechanism form a complete vibration compaction system. The vibration motor, located on the outer walls of both the upper and lower sand boxes, provides vibration power to compact the sand within the box. The pressure sensor, situated inside the lower sand box, monitors pressure changes in real time, providing precise data support for the casting process. The elastic support mechanism, located at the bottom of the lower sand box, absorbs the impact force generated during vibration, protecting the sand box from damage.

[0013] To achieve precise control of the vibration direction, several vibration motors are arranged orthogonally along the XYZ axes, and the vibration direction is synthesized through eccentric blocks. This arrangement ensures that the sand in the sand box is uniformly vibrated and compacted in all three directions, improving the quality of the casting.

[0014] A support frame is installed between the elastic support mechanism and the lower half of the box. The support frame provides stable support, ensuring the elastic support mechanism can function properly. The elastic support mechanism can be a hydraulic damper or an air spring. These mechanisms can effectively absorb the impact force during vibration, protect the sand box from damage, and extend the service life of the sand box.

[0015] Compared with the prior art, the beneficial effects of this utility model are: improving the heat resistance of the casting sand box. By setting replaceable ceramic fiber plates on the inner walls of the upper and lower halves of the box, the heat resistance of the sand box can be effectively improved and the service life of the sand box can be extended.

[0016] To enhance structural stability, the spiral reinforcing ribs on the outer wall of the lower half of the box can improve the structural strength and stability of the sand box, resisting the pressure and vibration generated during the casting process.

[0017] To improve exhaust performance, the honeycomb-shaped exhaust holes at the bottom of the lower half of the box, the inclined exhaust grooves on the side walls of the upper and lower half of the box, and the adjustable vent plug at the top of the upper half of the box together form a three-dimensional exhaust channel, which helps to discharge the gas generated during the casting process, reduce porosity defects, and improve the quality of the castings.

[0018] To improve sealing performance, the stepped sealing grooves and high-temperature resistant rubber strips on the mating surfaces provide a better sealing effect, preventing molten metal leakage and ensuring the safety of the casting process.

[0019] The sandbox is easy to assemble and disassemble. The design of the fixing hoop and rubber protective pad makes it easy to assemble and disassemble the sandbox while protecting it from damage.

[0020] Improving vibration compaction efficiency: The combination of a vibration motor, pressure sensor, and elastic support mechanism in a vibration compaction system can achieve efficient vibration compaction of sand molds, thereby improving the density and precision of castings.

[0021] The vibration direction is optimized by arranging the vibration motors orthogonally along the XYZ axes and synthesizing the vibration direction through eccentric blocks. This allows for more uniform vibration and compaction of the sand mold, reducing its inhomogeneity.

[0022] Providing excellent support and cushioning, the elastic support mechanism is connected to the lower half of the box body by a support frame, which can provide excellent support and cushioning, reduce the impact of vibration during the casting process on the equipment, and extend the service life of the equipment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the internal structure of the present invention from the front view.

[0024] Figure 2 This is a side view of the external structure of the present invention;

[0025] Figure 3 This is a top view of the fixing hoop of this utility model.

[0026] In the diagram: 1. Upper half of the box; 2. Lower half of the box; 3. Replaceable ceramic fiber board; 4. Spiral reinforcing ribs; 5. Honeycomb-shaped vent holes; 6. Inclined vent grooves; 7. Adjustable vent plugs; 8. Stepped sealing grooves; 9. High-temperature resistant rubber strips; 10. Fixing clamps; 11. Fixing bolts; 12. Rubber protective pads; 13. Vibration motor; 14. Pressure sensor; 15. Elastic support mechanism; 16. Eccentric block; 17. Support frame. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1-3 This utility model provides a technical solution: a composite precision casting sand box, which is mainly composed of an upper half box 1 and a lower half box 2 closely connected to it. Replaceable ceramic fiber boards 3 are installed on the inner walls of both the upper half box 1 and the lower half box 2. These ceramic fiber boards 3 have good high temperature resistance and heat insulation effect, which can effectively protect the inner wall of the sand box from damage by high temperature molten metal. In addition, the outer wall of the lower half box 2 is specially designed with spiral reinforcing ribs 4. These reinforcing ribs 4 can enhance the structural strength of the sand box and ensure that the sand box can withstand the weight of sand and molten metal and the impact force during the vibration compaction process during the casting process.

[0029] At the bottom of the lower half of the sand box 2, honeycomb-shaped vent holes 5 are designed. These vent holes 5 can effectively expel the gas inside the sand box, preventing the formation of bubbles during the casting process and affecting the quality of the casting. Meanwhile, inclined venting grooves 6 are provided on the side walls of both the upper half of the sand box 1 and the lower half of the sand box 2. These venting grooves 6, together with the honeycomb-shaped vent holes 5 at the bottom, form a three-dimensional venting channel, further optimizing the gas discharge path. To better control the air pressure inside the sand box, an adjustable vent plug 7 is also provided at the top of the upper half of the sand box 1. By adjusting the opening and closing degree of the vent plug 7, the air pressure inside the sand box can be flexibly controlled, ensuring the smooth progress of the casting process.

[0030] At the joint surface between the upper half of the box 1 and the lower half of the box 2, a stepped sealing groove 8 and a high-temperature resistant rubber strip 9 are specially designed. The high-temperature resistant rubber strip 9 is precisely embedded in the stepped sealing groove 8. This structural design not only ensures good sealing performance of the sand box in high-temperature environments, but also withstands the test of high temperature and pressure during the casting process, ensuring the sealing effect of the sand box and preventing molten metal leakage.

[0031] To further enhance the connection stability between the upper half-box 1 and the lower half-box 2, a fixing hoop 10 is also provided at the connection. The fixing hoop 10 consists of two semi-circular hoops, which are tightly connected by fixing bolts 11 to form a sturdy ring structure, ensuring that the sand box will not shift or deform during vibration compaction.

[0032] Inside the fixing hoop 10, rubber protective pads 12 are specially designed, which fit tightly against the upper half of the box 1 and the lower half of the box 2. The rubber protective pads 12 not only act as a buffer to reduce the impact of vibration on the sand box, but also prevent molten metal from splashing out during vibration, thus protecting the safety of the operators.

[0033] This utility model also relates to a vibration compaction system, which includes several vibration motors 13, pressure sensors 14, and elastic support mechanisms 15. These components work closely with a composite precision casting sand box to jointly complete the vibration compaction work during the casting process.

[0034] The vibration motor 13, pressure sensor 14, and elastic support mechanism 15 form a complete vibration compaction system. The vibration motor 13 is located on the outer wall of the upper half of the sand box 1 and the lower half of the sand box 2, providing vibration power to compact the sand inside the sand box. The pressure sensor 14 is located inside the cavity of the lower half of the sand box 2, enabling real-time monitoring of pressure changes inside the sand box and providing accurate data support for the casting process. The elastic support mechanism 15 is located at the bottom of the lower half of the sand box 2, absorbing the impact force generated during vibration and protecting the sand box from damage.

[0035] To achieve precise control of the vibration direction, several vibration motors 13 are arranged orthogonally along the XYZ axes, and the vibration direction is synthesized by an eccentric block 16. This arrangement ensures that the sand in the sand box is uniformly vibrated and compacted in all three directions, thus improving the quality of the casting.

[0036] A support frame 17 is provided between the elastic support mechanism 15 and the lower half of the box 2. The support frame 17 can provide stable support and ensure that the elastic support mechanism 15 can work normally. The elastic support mechanism 15 can be a hydraulic damper or an air spring. These mechanisms can effectively absorb the impact force during vibration, protect the sand box from damage, and extend the service life of the sand box.

[0037] Working principle: The upper half of the box 1 and the lower half of the box 2 are protected by replaceable ceramic fiber panels 3, which improves heat resistance and corrosion resistance, and facilitates replacement and maintenance.

[0038] The outer wall of the lower half of the box 2 is provided with spiral reinforcing ribs 4 to increase structural strength and stability.

[0039] The honeycomb-shaped vent 5 at the bottom of the lower half of the box 2 and the inclined vent groove 6 on the side wall of the upper half of the box 1 and the lower half of the box 2 work together to form an effective venting channel to discharge the gas generated during the casting process and prevent the generation of bubbles and defects.

[0040] The adjustable vent plug 7 at the top of the upper half of the box 1 can adjust the exhaust volume and further optimize the exhaust effect.

[0041] The stepped sealing groove 8 and high-temperature resistant rubber strip 9 on the mating surface ensure the airtightness of the sand box and prevent molten metal leakage.

[0042] The fixing hoop 10 and the rubber protective pad 12 are used to strengthen the connection of the sand box and protect the sand box from vibration damage.

[0043] The elastic support mechanism 15 and the support frame 17 provide stable support and reduce the impact of vibration on the sand box.

[0044] The vibration motor 13 is installed on the outer wall of the sand box. It compacts the sand mold through vibration, improves the density and uniformity of the sand mold, and reduces casting defects.

[0045] Pressure sensor 14 monitors pressure changes within the lower half of the chamber 2 to ensure that pressure is controlled within a safe range during the vibration compaction process.

[0046] The elastic support mechanism 15, such as a hydraulic damper or an air spring, absorbs vibration energy, reduces the transmission of vibration to the ground or the surrounding environment, and keeps the sandbox stable.

[0047] Several vibration motors 13 are arranged orthogonally along the XYZ axes. The vibration direction is synthesized through the eccentric block 16, providing multi-directional vibration to achieve a more uniform compaction effect.

[0048] In summary, the composite precision casting sand box and vibration compaction system work together through vibration compaction, venting, sealing and elastic support in the casting process to improve the quality and precision of castings.

[0049] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction 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.

[0050] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0051] 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A composite precision casting sand box, characterized in that: It includes an upper half box (1) and a lower half box (2) connected thereto. The inner walls of the upper half box (1) and the lower half box (2) are provided with replaceable ceramic fiber boards (3), and the outer wall of the lower half box (2) is provided with spiral reinforcing ribs (4). The bottom of the lower half box (2) is provided with a honeycomb-shaped exhaust hole (5), and the side walls of the upper half box (1) and the lower half box (2) are provided with inclined exhaust grooves (6). The top of the upper half box (1) is provided with an adjustable vent plug (7), forming a three-dimensional exhaust channel.

2. The composite precision casting sand box according to claim 1, characterized in that: The upper half box (1) and the lower half box (2) are provided with a stepped sealing groove (8) and a high-temperature resistant rubber strip (9) on their joint surfaces. The high-temperature resistant rubber strip (9) is located in the stepped sealing groove (8).

3. The composite precision casting sand box according to claim 1, characterized in that: A fixing hoop (10) is provided at the connection between the upper half box (1) and the lower half box (2). The fixing hoop (10) consists of two semi-circular hoops, which are connected by fixing bolts (11).

4. The composite precision casting sand box according to claim 3, characterized in that: The inner side of the fixing hoop (10) is provided with a rubber protective pad (12), which is in contact with the upper half box (1) and the lower half box (2).

5. A vibration compaction system, characterized in that: It includes several vibration motors (13), pressure sensors (14) and elastic support mechanisms (15); The composite precision casting sand box as described in any one of claims 1 to 4 is connected to the vibration motor (13), pressure sensor (14) and elastic support mechanism (15); The vibration motor (13) is located on the outer wall of the upper half box (1) and the lower half box (2), the pressure sensor (14) is located in the cavity of the lower half box (2), and the elastic support mechanism (15) is located at the bottom of the lower half box (2).

6. A vibration compaction system according to claim 5, characterized in that: Several of the aforementioned vibration motors (13) are arranged orthogonally along the XYZ triaxial axes, and the vibration direction is synthesized through an eccentric block (16); A support frame (17) is provided between the elastic support mechanism (15) and the lower half box (2), and the elastic support mechanism (15) is a hydraulic damper or an air spring.

Images