Inclined-position casting and horizontal-position feeding system for large plate castings and using method of inclined-position casting and horizontal-position feeding system

Abstract

The invention discloses a system for inclined position casting and horizontal position feeding of large plate castings and a using method of the system. The system comprises a casting platform control system, a casting platform system and a casting platform overturning system. One side of the casting platform system is provided with two supporting points of a supporting seat structure with supporting shafts, the bottom of the casting platform system is provided with a supporting seat with pulleys for turning over the casting platform, and the other side of the casting platform system is further provided with a supporting point which is a buffering supporting pad. And the casting platform system completes inclined position casting and horizontal position feeding together with the indication of the casting platform control system and the linkage function of the casting platform overturning system. According to the system, the problems that the casting temperature is difficult to accurately select, the feeding efficiency of a casting riser is low, and the surface quality of a casting does not reach the standard are effectively solved, and through implementation of the system, the expenditure of equipment maintenance and labor cost is greatly reduced, and the profit space of a product is remarkably widened.

Description

Technical Field

[0001] The present invention relates to the technical field of casting equipment, and in particular to a system for inclined casting and horizontal shrinkage compensation of large plate castings (such as various crusher side plates, chute liners, ball mill strip liners, etc.) and a method for using the system. Background Art

[0002] Traditional plate castings, such as side plates of various crushers, various types of chute liners, and strip liners of ball mills, are an integral part of industrial machinery and equipment. These castings play a vital role in processes such as ore crushing, material conveying, and grinding with their unique structural and functional characteristics. Their characteristics are that although the structural design is relatively simple and clear, without too many complex geometric shapes, their plane area is very wide or presents a long strip profile. This design is designed to maximize bearing capacity and reduce wear, making it a key component in crushers and other heavy equipment to withstand high-intensity impact and continuous wear.

[0003] In terms of production technology, the most widely used casting technology is sand casting. This ancient and practical method can meet the production needs of castings of different specifications and shapes. During the casting process, the sand mold is placed horizontally or at a specific tilt angle to more effectively control the flow and solidification of molten steel. In order to ensure the compactness of the internal structure of the casting and reduce defects such as shrinkage cavities and shrinkage porosity, shrinkage feed risers are carefully set at key locations of the casting to supplement the cavities caused by volume shrinkage during solidification.

[0004] However, the pouring process of large plate (or strip) castings is full of challenges, which are reflected in the following aspects:

[0005] 1. The horizontal steel paving area is large: This means that when pouring, it is necessary to ensure that a large area of ​​molten steel can be spread evenly and quickly to avoid uneven solidification caused by local excessive cooling.

[0006] 2. The temperature difference of molten steel is relatively small: In order to maintain the consistency of temperature in all parts of the entire casting, the initial temperature and pouring speed of the molten steel need to be strictly controlled to avoid internal stress concentration and crack formation caused by excessive temperature difference.

[0007] 3. Shrinkage compensation is difficult and the shrinkage compensation effect is poor: Due to the large size of the casting and its structural characteristics, the shrinkage compensation process becomes particularly complicated, and it is often difficult to achieve the ideal shrinkage compensation effect, which increases the risk of defects such as shrinkage cavities and shrinkage porosity.

[0008] 4. The exhaust area of ​​the casting is large, the air pressure is high, and the exhaust is not smooth: The exhaust design of large-area sand molds has become a key issue. Poor exhaust will not only affect the filling quality of molten steel, but may also cause porosity defects due to gas retention.

[0009] 5. The high-temperature baking time of the upper cavity of the casting is long: Long-term high-temperature baking can easily cause physical changes in the mold material, such as box collapse, sand falling, sand inclusion and other problems. In severe cases, it will also affect the surface quality and internal structural integrity of the casting.

[0010] 6. Unstable flow during molten steel pouring: The pouring of large castings is often accompanied by the complexity of molten steel flow, especially the rapid drop in temperature at the front end, which easily forms a cold shut. This is a phenomenon in which the front end of the molten steel cools too quickly and cannot be effectively integrated with the subsequent molten steel.

[0011] 7. Dilemma in choosing pouring temperature: When low-temperature pouring is used to improve shrinkage compensation effect, although it can reduce defects such as shrinkage cavities, it also increases the risk of cold shut, surface wrinkling and insufficient pouring. On the contrary, increasing the pouring temperature to improve the surface quality may lead to insufficient shrinkage compensation, resulting in linear (surface) shrinkage or shrinkage cavities. At the same time, the grain size of the casting will also increase due to high temperature, thereby affecting its mechanical properties and overall quality.

[0012] Specifically, in the traditional casting process, the spreading area of ​​molten steel (iron) is too large, making the energy distribution relatively dispersed, which undoubtedly increases the difficulty of controlling the casting process. In addition, the temperature difference control of molten steel (iron) during casting is extremely fine, while the temperature difference range is small under the traditional process, making it difficult to achieve ideal thermodynamic conditions, thus affecting the organizational structure and performance of the casting.

[0013] Shrinkage feeding is a key step in casting, but it faces great challenges in traditional processes. Due to the uneven pressure distribution inside the casting and the limited fluidity of the molten metal, the shrinkage feeding effect is often unsatisfactory. At the same time, defects in the mold design also exacerbate this problem, especially the drastic fluctuations in air pressure caused by the large exhaust area, which makes exhaust difficult and easily causes defects such as pores.

[0014] The long-term exposure of the upper cavity of the casting mold under high-temperature baking not only aggravates the thermal stress of the casting mold, but also easily causes a series of casting defects such as box collapse, sand falling, sand inclusion and wrinkling. These defects have a serious impact on the appearance and internal quality of the casting.

[0015] The flow stability of molten steel (iron) during the casting process is also a major problem in traditional processes. Unstable flow causes the temperature of the front end of the molten steel (iron) to drop rapidly, which easily forms a cold shut. This defect poses a potential threat to the strength and toughness of the casting.

[0016] What is even more difficult is that the choice of casting temperature has become a difficult problem that is difficult to balance. Lowering the casting temperature to improve the shrinkage compensation effect may cause problems such as cold shut, surface wrinkling and insufficient casting; while increasing the casting temperature to pursue better surface quality may cause negative effects such as insufficient shrinkage compensation, linear (surface) shrinkage or shrinkage holes, and large grain size of the casting, thereby reducing the overall quality of the casting.

[0017] In summary, the traditional casting process of large plate castings faces many technical problems that need to be solved urgently. These problems not only restrict the improvement of production efficiency and the optimization of product quality, but also pose a severe challenge to the further development of the entire foundry industry.

[0018] The disclosure of the above background technology content is only used to assist in understanding the concept and technical solution of the present invention. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application. Summary of the invention

[0019] The purpose of the present invention is to propose a system for inclined casting and horizontal shrinkage compensation of large plate castings and a method of using the system, so as to solve the technical problems of difficult casting temperature selection, low casting production efficiency and uneven product quality existing in the traditional casting of plate castings in the above-mentioned prior art.

[0020] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0021] A system for inclined casting and horizontal shrinkage compensation of large plate castings, comprising a casting platform control system, a casting platform system and a casting platform flipping system; one side of the casting platform system is provided with two fulcrums of a support seat structure with a support shaft, the bottom of the casting platform system is provided with a support seat with a pulley for flipping the casting platform, and the other side is also provided with a fulcrum, which is a buffer support pad; the casting platform system, together with the casting platform control system indication and the casting platform flipping system linkage function, completes inclined casting and horizontal shrinkage compensation.

[0022] Preferably, the casting platform control system is a casting platform control panel including control keys for various components.

[0023] Preferably, the panel is made of 20-30 mm thick steel plates welded according to design requirements.

[0024] Preferably, the casting platform system comprises a casting platform, a sand box to be cast into a casting, a pouring cup, a sprue, an ingode, a large plate casting cavity and a feeding riser.

[0025] Preferably, two hinged fulcrums for supporting, fixing and movably connecting are arranged on the left side of the casting platform, and the fulcrums are fixed in the cement foundation by anchor screws.

[0026] Preferably, the casting platform is formed by welding an I-beam frame.

[0027] Preferably, the sand box is separated by a parting surface and is divided into an upper box and a lower box.

[0028] Preferably, the casting platform flipping system includes a chain gear transmission system, a limiter, and a limit block. The chain gear transmission system includes a pulley, an eccentric cam, a reduction box and a motor. The eccentric cam and the casting platform are connected through a support seat with a pulley, thereby driving the tilting movement of the casting platform.

[0029] Preferably, when the eccentric cam is at the highest point, the maximum inclination angle of the casting platform is +15° in the counterclockwise direction, and the angle is adjustable.

[0030] The present invention also provides a method for using a system for inclined casting and horizontal shrinkage feeding of large plate castings, comprising the following steps:

[0031] S1: Preparation before casting

[0032] (1) Production of casting platform

[0033] (a) The size of the casting platform is determined according to the maximum sand box size. The principle is: length L + 300mm * width W + 300mm * height H. The thickness is calculated based on the thickness of the steel structure steel plate used for the casting platform and the total amount of the sand box, casting mold, and casting after casting. The safety factor is 2, that is, if the total load is G, the design load strength of the platform is 2G;

[0034] (b) One side of the casting platform adopts a support seat structure, with two on each side, the designed single load-bearing weight is G, and the spacing between them is 0.8W;

[0035] (c) Two fulcrums are set on the other side of the casting platform, with a single bearing weight of G and a spacing of 0.8W;

[0036] (d) The control panel of the casting platform is made of 20-30mm thick steel plates welded according to the design requirements;

[0037] (e) The casting platform is welded with I-beam frame;

[0038] (2) Production of casting platform flip system

[0039] The casting platform turning system includes a chain gear transmission system, a stopper, and a stop block. The chain gear transmission system includes a pulley, an eccentric cam, a reduction box, and a motor. The eccentric cam and the casting platform are connected through a support seat with a pulley, thereby driving the tilting movement of the casting platform.

[0040] Design the motor power according to the total weight of the casting platform, and design the eccentric cam size according to the length and maximum tilt angle of the casting platform;

[0041] When the eccentric cam is at the highest point, the maximum tilt angle of the casting platform is +15° in the counterclockwise direction, and the angle is adjustable;

[0042] S2: placing the mold to be cast on the casting platform, at which time the casting platform is at a positive angle position;

[0043] S3: After completing the casting preparation work of step S1 and step S2, the casting of the casting begins, and the molten steel or molten iron is cast through the pouring cup, and the molten steel or molten iron flows into the sprue along the sprue, and finally fills the large plate casting cavity;

[0044] S4: After the casting is completed, according to the process requirements, the casting platform tilt angle button is started, and the tilt angle is slowly reduced;

[0045] S5: After the shrinkage feeding riser of the casting is completely solidified, the horizontal position control button of the casting platform is activated, and the entire casting is in a horizontal position after casting;

[0046] S6: Casting is completed.

[0047] Compared with the prior art, the present invention has the following technical advantages:

[0048] 1. Unique casting process design: The system of inclined casting and horizontal shrinkage compensation for large plate castings of the present invention creatively adopts the casting method of inclined casting and horizontal shrinkage compensation. The core of this method is that after the casting is completed in the inclined position (positive angle), the entire mold will be flipped to the horizontal position to ensure that the shrinkage compensation riser is in the highest position. By appropriately lowering the casting temperature, the present invention can achieve high temperature and high pressure shrinkage compensation effects at a lower casting temperature. This change effectively reduces the thermal shock and loss of the high-temperature casting liquid on the plate, significantly prolongs the service life of the equipment, and thus greatly reduces the frequency and cost of equipment maintenance. This technological innovation not only reflects a deep understanding of material properties, but also highlights the ingenious conception in process design.

[0049] 2. Feeding edge risers can be set and the number of feeding risers can be optimized: Traditional casting methods often require multiple feeding risers to ensure the integrity and quality of the internal structure of the casting, but this undoubtedly increases the production cost and process complexity. The system for inclined casting and horizontal feeding of large plate castings of the present invention successfully reduces the number of feeding risers through precise calculation and simulation, and only needs to set the feeding edge riser on one side of the sprue. This change not only increases the temperature of the molten steel at the feeding riser, making the temperature gradient more reasonable and easy to control, but also simplifies the production process and further improves production efficiency.

[0050] 3. Innovative application of casting platform flipping system: In order to achieve precise tilting and stable operation of the casting mold, the present invention introduces a casting platform flipping system, which includes a chain gear transmission system, a limiter, and a limit block. The chain gear transmission system includes a pulley, an eccentric cam, a reduction box and a motor. The eccentric cam and the casting platform are connected through a support seat with a pulley, thereby driving the tilting movement of the casting platform. This system greatly reduces the labor intensity of workers with its stable and reliable performance and simple operation process, while ensuring the accuracy and safety of the casting process. Compared with traditional manual or simple mechanical operations, this innovation not only saves labor costs, but also significantly improves the automation level of production operations, laying a solid foundation for the intelligent transformation of enterprises.

[0051] 4. Comprehensive solution to traditional casting problems: Starting from the overall design, the present invention proposes a systematic solution to many problems existing in the traditional casting of plate castings, such as the difficulty in selecting the casting temperature, the unsatisfactory shrinkage compensation effect of the casting riser, and the substandard surface quality of the casting. These problems often lead to low casting production efficiency, and it is difficult for product quality to meet the design requirements, which brings a heavy economic burden to the enterprise. The inclined casting and horizontal shrinkage compensation system of the present invention effectively solves these problems through scientific casting technology and innovative mechanism design, which not only saves equipment maintenance and labor costs, but also significantly improves the profit margin of the product, bringing more considerable economic benefits to the enterprise.

[0052] To sum up, the system of inclined casting and horizontal shrinkage compensation for large plate castings of the present invention has achieved significant progress in terms of technology, which not only improves production efficiency and quality level, but also reduces costs and enhances the market competitiveness of enterprises. It is an important innovation in the field of modern casting technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is a schematic diagram of the inclined casting position of the system for inclined casting and horizontal shrinkage feeding of large plate castings of the present invention;

[0054] Figure 2It is a schematic diagram of the horizontal shrinkage feeding position of the system for inclined casting and horizontal shrinkage feeding of large plate castings of the present invention;

[0055] Figure 3 is a top view of the casting platform system of the present invention;

[0056] Figure 4 is a side view of the casting platform system of the present invention;

[0057] Figure 5 is a stereoscopic diagram of the casting platform system (excluding the casting platform) of the present invention;

[0058] Figure 6 It is a front view of the casting platform system (excluding the casting platform) of the present invention;

[0059] Figure 7 It is an annotated diagram of a casting platform control panel of a system for inclined casting and horizontal shrinkage compensation of large plate castings of the present invention.

[0060] Notes to the accompanying figures:

[0061] Figure 1 :1-casting platform control system; 2-casting platform; 3-casting platform flip system; 4-gating cup; 5-sprue; 6-inner runner; 7-buffer support pad; 8-pulley; 9-limiter; 10-limit block; 11-eccentric cam; 12-reduction box; 13-motor; 14-support seat; 15-support shaft; 16-lower box; 17-parting surface; 18-upper box; 19-large plate casting cavity; 20-shrinkage feeder; 21-support seat with pulley.

[0062] Figure 2 :1-casting platform control system; 2-casting platform; 3-casting platform flip system; 4-gating cup; 5-sprue; 6-inner runner; 7-buffer support pad; 8-pulley; 9-limiter; 10-limit block; 11-eccentric cam; 12-reduction box; 13-motor; 14-support seat; 15-support shaft; 16-lower box; 17-parting surface; 18-upper box; 19-large plate casting cavity; 20-shrinkage feeder; 21-support seat with pulley.

[0063] Figure 3 :2-casting platform; 4-pouring cup; 5-sprue; 6-introduction; 14-support seat; 19-large plate casting cavity; 20-shrinkage feeder.

[0064] Figure 4 :4- pouring cup; 16- lower box; 17- parting surface; 18- upper box; 19- large plate casting cavity; 20- shrinkage feed riser. DETAILED DESCRIPTION

[0065] The present invention will be further described in detail below in conjunction with specific implementations and with reference to the accompanying drawings. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope of the present invention and its application.

[0066] Non-limiting and non-exclusive embodiments will be described with reference to the accompanying drawings, wherein like reference numerals refer to like parts unless otherwise specifically stated.

[0067] like Figure 1-6 As shown, a system for inclined casting and horizontal shrinkage compensation for large plate castings is mainly for large plate castings made of high manganese steel materials. The system includes a casting platform control system 1, a casting platform system and a casting platform flipping system 3; one side of the casting platform system is provided with two fulcrums of a support seat 14 structure with a support shaft 15, the bottom of the casting platform system is provided with a support seat 21 with a pulley for flipping the casting platform, and the other side is also provided with a fulcrum, which is a buffer support pad 7; the casting platform system together with the casting platform control system 1 indication and the casting platform flipping system 3 linkage function completes the inclined casting and horizontal shrinkage compensation.

[0068] The casting platform control system 1 is a casting platform control panel including control keys of various components. The panel is made of 20-30 mm thick steel plates welded according to design requirements.

[0069] The casting platform 2 is formed by welding an I-beam frame.

[0070] The casting platform system comprises a casting platform 2 , a sand box for casting, a pouring cup 4 , a sprue 5 , an ingode 6 , a large plate casting cavity 19 and a feeding riser 20 .

[0071] The left side of the pouring platform 2 is provided with two hinged fulcrums for support, fixation and movability connection, and the fulcrums are fixed in the cement foundation through anchor screws.

[0072] The size of the casting platform 2 is determined according to the maximum sand box size, and the principle is: length L+300mm*width W+300mm*height H; the thickness is calculated based on the thickness of the steel structure steel plate used for the casting platform and the total amount of the sand box, mold, and casting after casting, and the safety factor is taken as 2, that is: if the total load is G, the design load-bearing strength of the platform is 2G.

[0073] The sand box is separated by a parting surface 17 into an upper box 18 and a lower box 16 .

[0074] The casting platform turning system 3 includes a chain gear transmission system, a limiter 9 and a limit block 10 . The chain gear transmission system includes a pulley 8 , an eccentric cam 11 , a reduction box 12 and a motor 13 .

[0075] The eccentric cam 11 and the casting platform 2 are connected via a support seat 21 with a pulley, thereby driving the tilting movement of the casting platform 2.

[0076] When the eccentric cam 11 is at the highest point, the maximum tilt angle of the casting platform 2 is +15° in the counterclockwise direction, and the angle is adjustable according to the size of the actual casting to be produced.

[0077] Application Examples

[0078] The operating steps of the system for inclined casting and horizontal shrinkage feeding of large plate castings of the present invention are as follows:

[0079] 1. Preparation before casting

[0080] (1) Production of casting platform 2

[0081] (a) The size of the casting platform 2 is determined according to the maximum sand box size (length L*width W*height H), and the principle is: length L+300mm*width W+300mm*height H. The thickness is calculated based on the thickness of the steel structure steel plate used for the casting platform and the total amount of the sand box, mold, and casting after casting. The safety factor is taken as 2, that is: if the total load is G, the design load strength of the platform is 2G.

[0082] (b) One side of the casting platform 2 adopts a support seat 14 (with a support shaft 15) structure, with two on each side, a single designed load-bearing weight of G, and a spacing of 0.8W.

[0083] (c) Two fulcrums are set on the other side of the casting platform 2, with a single bearing weight designed to be G and a spacing of 0.8W.

[0084] (d) When the eccentric cam 11 is at its highest point, the maximum tilt angle of the casting platform 2 is +15° in the counterclockwise direction, and the angle is adjustable according to the size of the actual casting to be produced.

[0085] (e) Casting platform control panel (see Figure 7 ) is made of 20-30mm thick steel plates welded according to design requirements.

[0086] (f) The casting platform 2 is welded using an I-beam frame.

[0087] (2) Production of casting platform flip system

[0088] The casting platform flipping system 3 includes a chain gear transmission system, a limiter 9, and a limit block 10. The chain gear transmission system includes a pulley 8, an eccentric cam 11, a reduction box 12 and a motor 13. The eccentric cam 11 and the casting platform 2 are connected through a support seat 21 with a pulley, thereby driving the tilting movement of the casting platform 2.

[0089] The motor power is designed according to the total weight carried by the casting platform 2, and the size of the eccentric cam 11 is designed according to the length dimension and the maximum tilt angle of the casting platform 2.

[0090] 2. Place the mold to be cast on the casting platform 2, which is now at a positive angle.

[0091] 3. After completing the casting preparation work of step 1 and step 2, start casting. The molten steel (iron) is poured through the pouring cup 4. The molten steel (iron) flows along the straight runner 5 into the inner runner 6 and finally fills the large plate casting cavity 19.

[0092] 4. After casting is completed, according to the process requirements, start the tilt angle button of casting platform 2, and the tilt angle will slowly decrease.

[0093] 5. After the casting shrinkage feeding riser 20 is completely solidified, the horizontal position control button of the casting platform 2 is started, and the entire casting is in a horizontal position.

[0094] 6. Casting is completed.

[0095] Comparative Example

[0096] The operation steps of the conventional casting system for plate castings in the prior art are taken as a comparative example, which are as follows:

[0097] 1. Manually close and lock the sand box (including the upper casting box, the casting parting surface, and the lower casting box), hang it in the designated casting area, and place the casting platform of the traditional casting system for plate castings horizontally.

[0098] 2. Manually pour molten steel (iron) into the casting pouring cup, and complete the casting after the molten steel (iron) fills the cavity of the traditional large plate casting and the shrinkage feed riser is completely solidified.

[0099] When exploring the optimization strategy of casting process, the tilted casting and horizontal shrinkage compensation system for large plate castings introduced by the present invention undoubtedly marks a major leap in the field of technology. Compared with the traditional plate casting system, the system of the present invention has shown outstanding technical superiority in multiple core dimensions, which is specifically reflected in the following aspects:

[0100] 1. Innovative breakthrough in pouring and shrinkage compensation mechanism

[0101] When dealing with large plate castings, traditional casting systems often encounter challenges such as wide horizontal steel paving areas, complex temperature difference control, and unsatisfactory shrinkage compensation effects. The inclined casting and horizontal shrinkage compensation system of the present invention cleverly adopts the innovative solution of horizontal casting and inclined shrinkage compensation. This strategy not only optimizes the flow trajectory of molten steel and effectively alleviates the problem of uneven temperature distribution caused by large-area paving, but also fully utilizes the gravity-driven natural shrinkage compensation effect through horizontal shrinkage compensation, significantly enhancing the efficiency and quality of shrinkage compensation. In addition, the mold design after inclined pouring allows the riser to occupy the highest position, thereby achieving more efficient shrinkage compensation under high temperature and high pressure environments, making up for the limitations of traditional shrinkage compensation methods.

[0102] 2. Accurate control of pouring temperature

[0103] In view of the difficulty in accurately managing the pouring temperature in traditional casting systems, the present invention proposes a strategy of moderately reducing the pouring temperature through in-depth theoretical analysis and practical verification. This adjustment effectively reduces the heat loss of molten steel during the pouring process while maintaining the stability of the basic performance of the casting, delays the sharp drop in the temperature of the front end of the molten steel, and thus reduces the incidence of casting defects such as cold shuts. At the same time, in pursuit of higher surface quality, this system also provides a flexible adjustment plan. By moderately increasing the pouring temperature and combining it with an optimized shrinkage compensation mechanism, it effectively avoids problems such as insufficient shrinkage compensation, shrinkage porosity, and shrinkage cavities, thereby ensuring the overall quality and performance of the casting.

[0104] 3. Coordinated optimization of riser and casting mold

[0105] The inclined casting and horizontal shrinkage compensation system of the present invention realizes deep coordination between the riser and the casting mold in the design. By reducing the number of risers and arranging them on one side of the sprue, it not only simplifies the casting process, but also improves the temperature concentration of the riser molten steel, which is conducive to building a more ideal temperature gradient and promoting uniform cooling and solidification of the casting. In addition, the inclined design of the casting mold after the casting is poured further strengthens the shrinkage compensation function of the riser, providing a strong guarantee for the steady improvement of the internal quality of the casting.

[0106] 4. Robustness of mechanism design and ease of operation

[0107] At the equipment level, the present invention introduces a casting platform flipping system. This innovative design not only significantly improves the stability and reliability of the casting process, but also greatly simplifies the operation process. This improvement reduces the training cost of operators, improves production efficiency, and reduces casting defects caused by human operating errors, further enhancing the overall performance and market competitiveness of the system.

[0108] In summary, the tilted casting and feeding system used in the large plate castings of the present invention demonstrates outstanding technical superiority in multiple key areas such as casting and feeding processes, temperature control, riser layout and mold improvement, as well as the stability and ease of use of structural design. These innovative measures not only specifically solve many problems in the traditional plate casting system, but also inject new vitality into the comprehensive development and progress of casting technology.

[0109] It is not difficult for those skilled in the art to understand that the above description has wide flexibility and adaptability, and therefore, the implementation cases and drawings mentioned are merely examples for illustrating one or more specific application scenarios.

[0110] Although the present invention has described in detail the embodiments that are considered to be exemplary of the present invention, those skilled in the art will appreciate that various changes and substitutions can be made without departing from the core concept of the present invention. In addition, a large number of adjustments can be made to meet specific application requirements, and these adjustments will not deviate from the basic concept of the present invention. Therefore, the scope of the present invention is not limited to the specific embodiments disclosed at present, but covers all implementation methods and equivalent forms that conform to the spirit and principles of the present invention.

Claims

1. A system for inclined casting and horizontal shrinkage feeding of large plate castings, characterized in that: It includes a casting platform control system, a casting platform system and a casting platform flipping system; one side of the casting platform system is provided with two fulcrums of a support seat structure with a support shaft, the bottom of the casting platform system is provided with a support seat with a pulley for flipping the casting platform, and the other side is also provided with a fulcrum, which is a buffer support pad; the casting platform system, together with the casting platform control system indication and the casting platform flipping system linkage function, completes inclined casting and horizontal shrinkage compensation.

2. The system for inclined casting and horizontal shrinkage feeding of large plate castings according to claim 1, characterized in that: The casting platform control system is a casting platform control panel including control keys for various components.

3. The system for inclined casting and horizontal shrinkage feeding of large plate castings according to claim 2, characterized in that: The panel is made of 20-30mm thick steel plates welded according to design requirements.

4. The system for inclined casting and horizontal shrinkage feeding of large plate castings according to claim 1, characterized in that: The casting platform system comprises a casting platform, a sand box to be cast into a casting, a pouring cup, a sprue, an ingode, a large plate casting cavity and a feeding riser.

5. The system for inclined casting and horizontal shrinkage feeding of large plate castings according to claim 4, characterized in that: Two hinged fulcrums connected with support, fixation and movability are arranged on the left side of the pouring platform, and the fulcrums are fixed in the cement foundation through anchor screws.

6. The system for inclined casting and horizontal shrinkage feeding of large plate castings according to claim 4 or 5, characterized in that: The casting platform is welded by using an I-beam frame.

7. The system for inclined casting and horizontal shrinkage feeding of large plate castings according to claim 4, characterized in that: The sand box is separated by a parting surface and is divided into an upper box and a lower box.

8. The system for inclined casting and horizontal shrinkage feeding of large plate castings according to claim 1, characterized in that: The casting platform flipping system includes a chain gear transmission system, a limiter, and a limit block. The chain gear transmission system includes a pulley, an eccentric cam, a reduction box and a motor. The eccentric cam and the casting platform are connected through a support seat with a pulley, thereby driving the tilting movement of the casting platform.

9. The system for inclined casting and horizontal shrinkage feeding of large plate castings according to claim 8, characterized in that: When the eccentric cam is at the highest point, the maximum tilt angle of the casting platform is +15° in the counterclockwise direction, and the angle is adjustable.

10. A method for using the system for inclined casting and horizontal shrinkage feeding of large plate castings according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Preparation before casting (1) Production of casting platform (a) The size of the casting platform is determined according to the maximum sand box size. The principle is: length L + 300mm * width W + 300mm * height H. The thickness is calculated based on the thickness of the steel structure steel plate used for the casting platform and the total amount of the sand box, casting mold, and casting after casting. The safety factor is 2, that is, if the total load is G, the design load strength of the platform is 2G; (b) One side of the casting platform adopts a support seat structure, with two on each side, the designed single load-bearing weight is G, and the spacing between them is 0.8W; (c) Two fulcrums are set on the other side of the casting platform, with a single bearing weight of G and a spacing of 0.8W; (d) The control panel of the casting platform is made of 20-30mm thick steel plates welded according to the design requirements; (e) The casting platform is welded with I-beam frame; (2) Production of casting platform flip system The casting platform turning system includes a chain gear transmission system, a stopper, and a stop block. The chain gear transmission system includes a pulley, an eccentric cam, a reduction box, and a motor. The eccentric cam and the casting platform are connected through a support seat with a pulley, thereby driving the tilting movement of the casting platform. Design the motor power according to the total weight of the casting platform, and design the eccentric cam size according to the length and maximum tilt angle of the casting platform; When the eccentric cam is at the highest point, the maximum tilt angle of the casting platform is +15° in the counterclockwise direction, and the angle is adjustable; S2: placing the mold to be cast on the casting platform, at which time the casting platform is at a positive angle position; S3: After completing the casting preparation work of step S1 and step S2, the casting of the casting begins, and the molten steel or molten iron is cast through the pouring cup, and the molten steel or molten iron flows into the sprue along the sprue, and finally fills the large plate casting cavity; S4: After the casting is completed, according to the process requirements, the casting platform tilt angle button is started, and the tilt angle is slowly reduced; S5: After the shrinkage feeding riser of the casting is completely solidified, the horizontal position control button of the casting platform is activated, and the entire casting is in a horizontal position after casting; S6: Casting is completed.

Images