Riser bush capable of being flexibly spliced and combined

Abstract

The invention provides the riser bush capable of being flexibly spliced and combined, and the riser bush is suitable for the requirements of risers with different sizes and shapes in a casting process. The riser bush is composed of an arc plate and a straight plate which are provided with concave-convex matching structures, and combination and splicing of various shapes are achieved in a concave-convex lap joint mode. The arc plates are used for splicing circular or arc-shaped parts, the straight plates are used for splicing linear parts, and the arc plates and the straight plates can be combined to form a circular or kidney-shaped riser structure. By means of the design, the production and inventory problems caused by the fixed size of a traditional riser sleeve are avoided, operation is convenient, and splicing can be completed by one person. Meanwhile, due to the design of the concave-convex structure, the stability after splicing is guaranteed, the heating and heat preservation effects of the riser bush are effectively improved, the problems of water leakage, sand burning and the like in the pouring process are solved, and the advantages of reducing cost and improving production efficiency are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of casting, in particular to a riser sleeve which can be flexibly spliced ​​and combined. Background Art

[0002] In the casting process, the riser sleeve is a commonly used auxiliary tool to maintain the temperature of the casting and ensure the shrinkage of the metal. There are two main types of riser sleeves currently used in the market, which are suitable for making larger risers. However, these two conventional riser sleeves have significant shortcomings in use, which affects the efficiency and flexibility of their wide application.

[0003] The first type: integrally formed riser sleeve, fixed size, direct use

[0004] The integrally formed riser sleeve has pre-fixed dimensions and is usually formed in one go. However, this structural design has the following disadvantages:

[0005] Many molds and high costs: Each size specification requires a separate mold, the number of molds is large, and the mold opening cost is high, resulting in serious capital occupation.

[0006] Inconvenient production organization: During the production process, molds need to be frequently switched to meet production requirements of different sizes and specifications, resulting in low production efficiency and increased difficulty in organization.

[0007] Large volume, high storage and transportation costs: The riser sleeve occupies a large volume, resulting in high storage and transportation costs, which is not conducive to inventory management.

[0008] The size is not adjustable: The size is fixed, and it is difficult to adjust or change the size according to the casting process requirements, which limits its application in diversified casting processes.

[0009] Inventory occupies funds: Due to the need to stock multiple specifications and models of riser sleeves, the inventory cost is high, and a large amount of funds and storage space are occupied.

[0010] Unable to cut: When the size of the riser sleeve cannot fully meet the casting requirements, the riser sleeve that is too small cannot be used; the riser sleeve that is too large is also difficult to cut, resulting in material waste.

[0011] The second type: plate-shaped riser sleeve with V groove, mesh frame connected in series, enclosed for use

[0012] Another riser sleeve design uses a plate structure with a V-groove, and is formed by connecting a mesh frame in series during use to flexibly adapt to different sizes. However, although this structural design solves some of the problems of the first type of riser sleeve, it still has the following shortcomings:

[0013] The production process is complex: During the manufacturing process, the mesh frame needs to be manually embedded, and the process of combining it with the heating and insulation materials is relatively complicated, which increases the production cost.

[0014] Material separation problem: The mesh frame and the heating and insulation material are not an integrated structure and are prone to separation or peeling during use, especially when bent, which affects their use.

[0015] Inconvenient operation: The design is long and soft, which is inconvenient to operate. It usually requires the collaboration of multiple people to complete the assembly, which increases the difficulty of use.

[0016] Difficult cutting and serious waste: After enclosure, the remaining parts are difficult to cut and the excess parts cannot be reused, resulting in material waste.

[0017] Poor heat-generating and heat-insulating performance: After enclosed molding, a whole circle of deep V-grooves is formed on the outer ring of the riser sleeve, which significantly reduces its heat-generating and heat-insulating effect. In addition, it is easy to leak molten iron (steel) during the pouring process, forming sticky sand, which is not conducive to subsequent cutting and remelting.

[0018] In order to solve the many deficiencies of the above two types of riser sleeves in production, storage and use, the present invention proposes a new riser sleeve design that can be flexibly spliced ​​and combined. The design achieves flexible splicing through the concave and convex structure of the arc plate and the straight plate, which not only meets the requirements of various specifications, but also avoids the defects of the prior art, thereby improving production efficiency, reducing material waste, and improving the convenience of use and thermal insulation effect of the product. Summary of the invention

[0019] The present invention proposes a riser sleeve that can be flexibly spliced ​​and combined, which is specially designed for casting process and aims to solve multiple problems existing in the production, use and storage of existing riser sleeves. The invention utilizes the design concept of "Lego-style" splicing, and through the flexible combination of a small number of arc plates and straight plates with concave and convex matching structures, the size and shape of the riser sleeve can be adjusted according to actual needs, thereby improving the adaptability of the riser sleeve, reducing production costs and material waste, and greatly simplifying the difficulty of operation in the casting process.

[0020] Traditional riser sleeve products are mainly divided into two categories: integrally formed riser sleeves and plate-shaped riser sleeves with V-grooves. These two types of riser sleeves meet casting needs to a certain extent, but both have significant defects. Since the integrally formed riser sleeves have fixed sizes, independent molds need to be opened for each specification, which increases capital occupation. In addition, they are large in size and difficult to adjust, resulting in high storage and transportation costs, and poor flexibility in the size requirements of castings. Although the plate-shaped riser sleeves with V-grooves have solved the problem of fixed size to a certain extent, their production process is complex and their structure is loose. They are easily damaged during operation and difficult to cut. After splicing, they may also affect the heating and thermal insulation performance.

[0021] Based on the above problems, the purpose of the present invention is to provide a new riser sleeve design, which can adapt to various shapes and size requirements through the combination of the concave and convex structures of the arc plate and the straight plate. This invention design not only improves the flexibility of the riser sleeve, but also has many advantages in production and application, including reduced production costs, simple operation, stable heating and heat preservation effects, and reduced material waste.

[0022] To achieve the above-mentioned purpose, the flexibly spliced ​​riser sleeve provided by the present invention comprises two main components, an arc plate and a straight plate, both of which have a specific concave-convex matching structure to achieve free splicing and combination of the riser sleeve.

[0023] Arc plate structure

[0024] The design feature of the arc plate is that it has an inner concave portion - at one end and an outer convex portion - at the other end. This design allows multiple arc plates to overlap each other through their concave and convex structures to form an arc or circular structure. The structure of the inner concave and outer convex parts of the arc plate allows each arc plate to be smoothly docked when spliced ​​to form a stable splicing structure. This design not only ensures the firmness of the overall structure in circular splicing, but also makes the splicing process simple and quick. Through the cylindrical arrangement of multiple arc plates, circular riser sleeves of different diameters can be spliced ​​to meet the circular riser requirements of castings.

[0025] Straight board structure

[0026] Straight plates are used to splice the straight part of the waist-shaped riser sleeve. The straight plate also adopts a structural design with an inner concave part at one end and an outer convex part at the other end. By repeatedly overlapping multiple straight plates, the splicing of the straight structure can be achieved. Straight plates and arc plates can be used in combination. The arc plate is used for the arc part of the waist-shaped riser sleeve, while the straight plate is used to splice the horizontal straight part of the waist-shaped riser sleeve to form a waist-shaped riser sleeve that meets specific needs.

[0027] Design advantages of concave-convex structure

[0028] The arc plate and the straight plate of the present invention both adopt the concave-convex structure to achieve splicing, without the need for any auxiliary tools. When in use, it is only necessary to overlap the inner concave part of the arc plate or the straight plate with the outer convex part of the adjacent plate to form a firm connection. This structural design brings many advantages: first, since no additional fixing parts are required, the splicing process is simplified, greatly reducing the difficulty of operation; second, the precise matching of the concave-convex structure improves the stability of the splicing and the integrity of the overall structure, ensuring the stability and durability of the riser sleeve during use.

[0029] Through the flexible combination of arc plates and straight plates, the riser sleeve of the present invention can be spliced ​​into various shapes and sizes, suitable for the needs of different castings. For castings that require annular risers, circular riser sleeves of different diameters can be spliced ​​through the cylindrical arrangement of arc plates; for castings that require waist-shaped risers, waist-shaped structures can be formed by combining arc plates and straight plates. In this way, the riser sleeve of the present invention can be flexibly adjusted according to the size of the casting, meeting the needs of various casting processes, and avoiding the inconvenience caused by the fixed size of traditional riser sleeves.

[0030] The present invention solves the problem of reduced heat preservation performance of riser sleeves with V grooves after splicing. The concave-convex overlap structure of the arc plate and the straight plate realizes seamless splicing, avoiding the formation of deep V grooves, thereby effectively maintaining the heat preservation effect of the riser sleeves. Riser sleeves without deep V grooves can prevent leakage of molten iron or steel during the pouring process, reduce the problem of sand sticking to the casting, and ensure that the cutting and remelting process of the riser sleeves is smoother.

[0031] Since the design of the arc plate and the straight plate can combine a variety of sizes of riser sleeves with a small number of specifications, the present invention greatly reduces the mold demand and reduces the mold cost. In addition, the arc plate and the straight plate have a simple structure and a small volume, which is convenient for storage and transportation, reducing storage and logistics costs. Only a small amount of arc plates and straight plates need to be stocked to meet different casting needs, avoiding the inventory pressure caused by the various specifications of traditional riser sleeves, and significantly reducing the capital occupation of the enterprise.

[0032] The riser sleeve of the present invention can be customized on demand through flexible splicing, avoiding material waste caused by the riser sleeve being too large or too small. In particular, in the splicing of waist-shaped structures, the combination of arc plates and straight plates can effectively avoid redundant material. The entire riser sleeve is an integrated structure during use, and material separation or damage will not occur due to splicing, thereby effectively extending the service life of the product and maximizing the use of resources.

[0033] The splicing design of the present invention enables one person to complete the splicing and disassembly of the riser sleeve, greatly simplifying the workflow of the foundry and reducing the manpower requirements. Since the arc plate and the straight plate can be freely combined into a riser sleeve that meets the size requirements, there is no need to frequently change the mold and switch the process, the operation process is more efficient and the safety is improved.

[0034] Beneficial Effects

[0035] The flexibly spliced ​​riser sleeve provided by the present invention realizes the requirements of risers of various sizes and shapes by combining a small number of arc plates and straight plates, greatly improving the flexibility of production organization, reducing mold and storage costs, and avoiding material waste. The concave and convex overlap structure ensures the stability and heat insulation effect after splicing, which can effectively prevent iron and steel leakage and simplify the operation process. This invention has broad application prospects and important practical value in the foundry industry, and provides an efficient, convenient and economical riser solution for modern casting technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 This is a schematic diagram of the arc plate structure of an embodiment of the present invention;

[0038] Figure 2 A schematic diagram of a straight plate structure according to an embodiment of the present invention;

[0039] Figure 3 Schematic diagram of a three-dimensional structure of arc plates with multiple diameters spliced ​​together according to an embodiment of the present invention;

[0040] Figure 4 It is a schematic diagram of a top view structure of arc plates with multiple diameters spliced ​​together according to an embodiment of the present invention;

[0041] Figure 5 It is a schematic diagram of a waist-shaped riser structure of an arc plate and a straight plate spliced ​​together in an embodiment of the present invention.

[0042] The markings in the figure are:

[0043] 1. Arc plate; 2. Straight plate; 1-1, concave part of the arc plate; 1-2, convex part of the arc plate; 2-1, concave part of the straight plate; 2-2, convex part of the straight plate. DETAILED DESCRIPTION

[0044] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternatives to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0045] It should be noted that the references to "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0046] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0047] The present invention relates to a riser sleeve that can be flexibly spliced ​​and combined, which is used to meet the flexible requirements of the casting process for the size and shape of the riser. The riser sleeve is mainly composed of two basic structures, an arc plate and a straight plate, and can be freely spliced ​​through a concave-convex matching structure, which can effectively adapt to the requirements of risers of different shapes and sizes. The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings.

[0048] Structural design of curved and straight plates

[0049] Arc plate structure ( Figure 1 )

[0050] like Figure 1 As shown, the arc plate 1 is designed to be spliced ​​to form a circular or partially circular riser structure. An inner concave portion 1-1 is provided at one end of the arc plate, and an outer convex portion 1-2 is provided at the other end. The designs of the inner concave portion and the outer convex portion match each other, so that multiple arc plates can be overlapped through the inner concave portion 1-1 and the outer convex portion 1-2 of the adjacent arc plate.

[0051] This concave-convex structure design enables the arc plates to achieve a stable locking effect when spliced. Multiple arc plates are spliced ​​in a cylindrical arrangement to form an arc or circular riser structure, which is suitable for the riser forming of circular castings. The concave-convex structure design of the arc plate is easy to operate and does not require additional tools. After splicing, a stable arc frame can be formed.

[0052] Straight plate structure( Figure 2 )

[0053] like Figure 2As shown, the straight plate 2 is designed to form a straight structure so as to be spliced ​​into a waist-shaped or other riser structure with a horizontal straight portion. An inner concave portion 2-1 is provided at one end of the straight plate 2, and an outer convex portion 2-2 is provided at the other end. This design allows multiple straight plates to be overlapped through the inner concave portion 2-1 and the outer convex portion 2-2 of the adjacent straight plate to form a straight structure.

[0054] The structure of the straight plate is similar to that of the curved plate, but it is used to splice the straight structural part, and is suitable for combining with the curved plate to form a waist-shaped riser. The concave-convex matching structure of the straight plate ensures the convenience of splicing and the stability of the structure, and effectively avoids separation or looseness after splicing.

[0055] Diversified realization of splicing structure

[0056] Multi-diameter arc plate splicing three-dimensional structure ( Figure 3 )

[0057] like Figure 3 As shown, multiple arc plates can overlap each other through their concave and convex structures to form circular riser sleeves of different diameters in a cylindrical arrangement. When splicing, the inner concave part 1-1 of the arc plate 1 is connected with the outer convex part 1-2 of the previous arc plate 1, and arranged along the circumferential direction, so as to realize circular structures of different diameters.

[0058] The diameter of the arc plate can be increased or decreased according to the demand, so as to achieve a variety of changes from small diameter to large diameter, meeting the riser size requirements of different castings. The advantage of this splicing structure is that arc plates of a single specification can be flexibly combined to form circular risers of various diameters, reducing mold and production costs.

[0059] Multi-diameter arc plate splicing top view structure ( Figure 4 )

[0060] like Figure 4 As shown, multiple arc plates are shown in a top view to show the circular riser splicing effect after cylindrical arrangement. This figure shows the circumferential arrangement of the arc plates 1, which form a complete ring structure through continuous concave and convex overlap.

[0061] This arrangement presents a complete and uniform circular frame from a top view, and the number of splicing can be flexibly adjusted according to the needs of the casting, providing a variety of options from small diameter to large diameter. This splicing method not only ensures the stability of the structure, but also effectively maintains the heat insulation performance of the riser sleeve, avoiding the gap or leakage problems that occur in traditional splicing methods.

[0062] Waist-shaped riser structure composed of arc plate and straight plate ( Figure 5 )

[0063] like Figure 5As shown, the present invention realizes the splicing structure of the waist-shaped riser by combining arc plates and straight plates. The arc parts at both ends of the waist-shaped riser are formed by splicing arc plates 1, and the inner concave part 1-1 and the outer convex part 1-2 of the arc plate overlap each other to form a complete arc-shaped frame. The horizontal straight line parts on both sides of the waist-shaped riser are formed by splicing straight plates 2, and the inner concave part 2-1 and the outer convex part 2-2 of the straight plate overlap each other to form a straight structure.

[0064] The combined splicing of the arc plate and the straight plate provides convenience and flexibility for the molding of the waist-shaped riser. The concave and convex structures at the adjacent joints of the arc plate and the straight plate ensure a firm connection, and can be easily disassembled and reassembled when the riser size needs to be adjusted. This design effectively avoids the size mismatch and water leakage problems that may occur when traditional riser sleeves are spliced, and improves the heat preservation and stability of the riser sleeve during the casting process.

[0065] Example

[0066] The following is an embodiment based on the specific structure of the present invention, which describes in detail the riser sleeve splicing methods under different situations to demonstrate the advantages of the present invention in practical applications.

[0067] Example 1: Splicing of circular riser sleeves with different diameters

[0068] When casting a small diameter circular casting, four arc plates can be selected to be spliced ​​into a small diameter circular riser sleeve. First, the inner concave portion 1-1 of one arc plate is connected to the outer convex portion 1-2 of the adjacent arc plate, and the four arc plates are sequentially spliced ​​into a complete circular structure. Since the concave and convex structure of the arc plate ensures the stability of the splicing, a stable circular frame is formed after the splicing is completed. When a circular riser sleeve with a larger diameter is required, the diameter can be increased by increasing the number of arc plates. For example, six or eight arc plates are overlapped in sequence to form a medium or large diameter circular riser.

[0069] Example 2: Splicing of waist-shaped riser sleeves

[0070] In the casting of waist-shaped castings, a waist-shaped riser structure can be formed by combining arc plates and straight plates. First, four arc plates are selected and spliced ​​in turn through the inner concave part 1-1 and the outer convex part 1-2 to form the arc parts at both ends of the waist-shaped riser. Then, two straight plates are overlapped through the inner concave part 2-1 and the outer convex part 2-2 to form the straight parts on both sides of the waist-shaped riser. The connection between the arc plate and the straight plate is also overlapped with a concave-convex structure to ensure the stability of the splicing. Through this combination method, the number of arc plates and straight plates can be adjusted according to actual needs, and the size of the waist-shaped riser can be flexibly adjusted to adapt to castings of different specifications.

[0071] Example 3: Multi-layer riser structure splicing of complex castings

[0072] In some special casting processes, a multi-layer riser structure is required to meet different casting requirements. The arc plate and straight plate structure of the present invention can also be used for multi-layer splicing. When constructing a multi-layer structure, a layer of circular riser sleeve can be spliced ​​as the bottom layer, and a small-diameter circular riser can be formed using the splicing method of Example 1. Then, another layer of splicing structure, such as a medium-diameter circular riser layer, is stacked on top of the bottom layer riser. In this way, through the combination of multiple layers of arc plates, a multi-layer riser sleeve structure can be realized, thereby meeting the casting requirements of complex castings.

[0073] The arc plate and the straight plate can be made of different heat-generating and heat-insulating materials or heat-insulating materials to meet the requirements of the casting process. Heat-insulating materials such as ceramics, silicates, plant fibers, etc. can effectively maintain the temperature of the molten metal in the riser sleeve; heat-generating and heat-insulating materials such as materials containing carbon, aluminum, magnesium, etc. can release heat and maintain the temperature of the molten metal in the riser sleeve. They can be selected according to the requirements of the casting process to meet the shrinkage requirements of large castings.

[0074] Technical effect: The riser sleeve of the present invention selects suitable heat-generating and heat-insulating materials, so that when the casting is cooled and solidified, the molten metal in the riser sleeve is heated and remains in liquid state for a long time, giving full play to the shrinkage compensation effect of the riser, improving the shrinkage compensation efficiency of the riser, and improving the casting process yield. This design significantly improves the stability of casting quality and reduces the occurrence of casting defects.

[0075] Effects and advantages of the present invention

[0076] In summary, the present invention realizes a combination of riser sleeves of various shapes and sizes by splicing the concave and convex structures of the arc plate and the straight plate, which can not only meet the requirements of various casting processes, but also effectively solve the shortcomings of existing riser sleeves in production, storage and use. The structural design simplifies the production process, reduces mold and inventory costs, and achieves the firmness of the splicing through the concave and convex overlap, avoiding the problems of water leakage, sand sticking, etc. caused by the traditional splicing method. In addition, the splicing method of the present invention is easy to operate, so that one person can complete the splicing and disassembly of the riser sleeve, which improves the efficiency and safety of the casting process.

[0077] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, etc. are not described in detail.

[0078] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A riser sleeve that can be flexibly spliced ​​and assembled, characterized in that: It comprises an arc plate (1) and a straight plate (2), wherein: One end of the arc plate (1) is provided with an arc plate inner concave portion (1-1), and the other end is provided with an arc plate outer convex portion (1-2), so that a plurality of arc plates (1) are overlapped with each other through the inner concave portion (1-1) and the outer convex portion (1-2) of adjacent arc plates (1) to form a circular or waist-shaped riser structure; One end of the straight plate (2) is provided with a straight plate inner concave portion (2-1), and the other end is provided with a straight plate outer convex portion (2-2), so that a plurality of straight plates (2) are overlapped with each other through the inner concave portion (2-1) and the outer convex portion (2-2) of adjacent straight plates (2) to form a linear splicing structure.

2. A riser sleeve that can be flexibly spliced ​​and assembled according to claim 1, characterized in that: The arc plates (1) are arranged in a cylindrical shape to achieve annular splicing, thereby forming a circular riser sleeve.

3. The riser sleeve that can be flexibly spliced ​​and assembled according to claim 1 is characterized in that: The arc plate (1) and the straight plate (2) can be combined into a waist-shaped riser sleeve, the arc plate (1) is used to splice the arc structure, and the straight plate (2) is used to splice the flat structures on both sides of the waist-shaped riser sleeve.

4. A riser sleeve that can be flexibly spliced ​​and assembled according to any one of claims 1 to 3, characterized in that: The arc plate (1) and the straight plate (2) are overlapped with each other using a concave-convex structure, which is convenient for splicing and disassembly, does not require any auxiliary fixing tools, and reduces the difficulty of operation.

5. A riser sleeve that can be flexibly spliced ​​and assembled according to any one of claims 1 to 4, characterized in that: The arc plate (1) and the straight plate (2) can be freely combined according to the size and shape requirements of the casting to form a riser sleeve size and shape that meets the requirements of various casting processes.

6. A riser sleeve that can be flexibly spliced ​​and assembled according to any one of claims 1 to 5, characterized in that: When the riser sleeve is used in enclosure, no deep V groove is generated, thereby maintaining the heat-generating and heat-insulating effect of the riser sleeve, avoiding iron or molten steel leakage during the pouring process, reducing sand sticking and facilitating subsequent cutting.

7. The riser sleeve that can be flexibly spliced ​​and assembled according to any one of claims 1 to 6, characterized in that: The arc plate (1) and the straight plate (2) are made of heat-generating and heat-insulating materials, which match the casting process of the casting, and can improve the heat-generating and heat-insulating performance of the riser sleeve and improve the stability of the casting quality.

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