A wooden mold for steel ingot mold casting and its manufacturing method

Abstract

The present invention discloses a wooden mold for steel ingot mold castings and a method for making the same. The wooden mold comprises a wooden frame, a decking assembly, a skirt assembly, and a hanger core box. The outer decking assembly reserves a core box mounting position during manufacture. The hanger core box is arranged at the core box mounting position and connected to the wooden frame. The wooden mold for steel ingot mold castings can form a wooden mold structure that is structurally stable, has good strength, is large in size, and is relatively lightweight, by providing the wooden frame, the decking assembly, and the skirt assembly. Furthermore, the wooden mold is relatively simple to manufacture and has good plasticity. Each component can be manufactured in a block or unit manner and then assembled, reducing the difficulty of wooden mold manufacturing.

Description

Technical Field

[0001] The invention relates to the technical field of steel ingot mold casting production, in particular to a wooden mold for steel ingot mold casting and a manufacturing method thereof. Background Art

[0002] Ingot molds are important molds for producing large steel ingots, and the ingot molds themselves need to be made by casting. The quality of the ingot mold castings will directly affect the quality and service life of the steel ingots produced by the ingot molds.

[0003] Existing ingot castings are mostly produced through sand casting. During the sand casting process, a wooden mold of the ingot mold assembly is created to shape the cavity of the ingot casting. Molten iron is then poured into the mold to produce the ingot casting. Due to the large size and annular structure of the ingot mold assembly, the wooden mold is difficult to produce. To improve the strength and stability of the wooden mold, additional sheet material is typically used, and the mold is often manufactured using an integrated molding process. This practice increases wood consumption and production costs. Summary of the Invention

[0004] The purpose of the present invention is to provide a wooden mold for steel ingot mold casting and a manufacturing method thereof in view of the problems existing in the prior art.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A wooden mold for shaping ingot mold castings, comprising a wooden frame, the wooden frame having an axial through hole, the diameter of one end of the axial through hole being larger than the diameter of the other end; a plurality of decking assemblies are respectively laid on the inner and outer peripheries of the wooden frame to obtain a wooden mold body that is compatible with the inner and outer contours of the ingot mold casting; skirt assemblies are respectively provided at the two ends and the middle of the wooden mold body, and the skirt assemblies are connected to the decking assemblies and / or the wooden frame; hanger core boxes are also respectively provided on both sides of the wooden mold body, and a core box installation position is reserved on the outer decking assembly during production, and the hanger core box is arranged at the core box installation position and connected to the wooden frame.

[0007] The shaping wooden mold of the steel ingot mold casting can form a shaping wooden mold structure with stable structure, good strength, large size and relatively light weight through the arrangement of the wooden frame, the decking assembly and the skirt assembly. Moreover, the shaping wooden mold is relatively simple to manufacture and has good plasticity. A wooden mold with basically the same outline size can be manufactured according to the shape of the required casting, so that the required large steel ingot mold casting can be produced by shaping through the wooden mold.

[0008] The wooden skeleton is the basic frame structure of the wooden mold. By laying the plank components on the inner and outer peripheries thereof respectively, and arranging the skirt components and the hanger core box, the various components can be manufactured in a block and unit manner and then assembled, thereby reducing the difficulty of making the wooden mold.

[0009] The skirt assembly and the hanger core box can also form a unique shape structure to meet special requirements. For example, the skirt assembly can form a circular surrounding structure on the wooden mold body, and the hanger core box can produce a hanging ear structure with a smooth surface, no burrs and flash, and no defects that affect the strength appear around the hanging ear (within 2.5 times the diameter of the hanging ear).

[0010] Furthermore, the wooden frame includes a multi-layer mesh ring structure arranged in parallel up and down, and the inner and outer peripheries of the mesh ring structure are respectively provided with a plurality of bayonets, and the bayonets are respectively connected to wooden squares, and the wooden squares on the inner and outer peripheries are staggered.

[0011] The bayonet connection significantly reduces the use of metal fasteners such as screws. This mortise and tenon-like connection structure ensures joint strength while preventing screw holes from damaging the original wood structure, which could reduce its overall structural strength and stability. The staggered arrangement of the inner and outer surfaces reduces the total number of wood planks while ensuring overall joint support strength.

[0012] Furthermore, each of the mesh ring structures comprises multiple layers of superimposed mesh rings, and the number of layers of the mesh rings is 2 to 5; the mesh ring is a polygonal structure, and the bayonet is respectively provided on the inner and outer edges of the polygonal structure, and the width of the mesh ring plus the thickness of the decking assembly is the cross-sectional width dimension of the ingot mold casting.

[0013] Furthermore, the interval between adjacent mesh ring structures does not exceed 700 mm, the top mesh ring structure is provided with three layers of mesh rings, the bottom mesh ring structure is provided with four layers of mesh rings, and the multiple mesh ring structures in the middle are respectively provided with two layers of mesh rings.

[0014] Furthermore, the mesh ring structure also includes a steel ring, which is arranged below the mesh ring or between adjacent mesh rings, and can further enhance the strength of the mesh ring assembly and improve the stress of the mesh ring assembly. The mesh ring is provided with an annular groove connecting the steel ring.

[0015] Furthermore, the wooden square is provided with a plurality of notches at intervals along its length direction, and notches are also provided at both ends of the wooden square, and the notches cooperate with the bayonet to connect the wooden square; and vertical linings are also provided between adjacent mesh ring structures.

[0016] Furthermore, a plurality of demoulding hangers are provided in the wooden frame. The demoulding hangers are arranged parallel to the axial direction of the wooden frame. The ends of the demoulding hangers are provided with hanging rings. The ends of the demoulding hangers and the hanging rings do not exceed the end surface of the wooden frame.

[0017] Furthermore, the floor plank assembly includes an inner tire and an inner floor plank, as well as an outer tire and an outer floor plank; the inner tire is axially connected to the inner periphery of the wooden frame, the inner floor plank is connected to the outer surface of the inner tire, and a plurality of the inner tires are circumferentially arranged in sequence on the inner periphery of the wooden frame; the outer tire is axially connected to the outer periphery of the wooden frame, the outer floor plank is connected to the outer surface of the outer tire, and a plurality of the outer tires are circumferentially arranged in sequence on the outer periphery of the wooden frame and reserve the core box installation position.

[0018] Furthermore, the skirt assembly includes a movable skirt and a fixed skirt, and the fixed skirt and the movable skirt are respectively circumferentially connected to the outer periphery of the wooden mold body; the fixed skirt and the movable skirt both include a wooden skirt and a foam skirt.

[0019] A method for manufacturing a wooden mold for a steel ingot mold casting, the method comprising the following steps:

[0020] A three-dimensional diagram of the wooden mold is established according to the process drawing of the steel ingot mold casting, and the wooden mold is divided into blocks according to the three-dimensional diagram to respectively design the wooden frame, the decking assembly and the skirt assembly;

[0021] The wooden frame is assembled from a mesh ring, a steel ring, a demoulding hanging rod, wooden squares and vertical linings. First, snap-on notches are processed on the inner and outer edges of the mesh ring, and notches are processed on the wooden squares. Corresponding hanger positioning holes are respectively opened on the mesh ring and the steel ring. Secondly, multiple mesh rings are stacked together to form multiple mesh ring structures, some of which are connected to the steel rings. Multiple mesh ring structures are arranged at intervals, and the wooden squares are installed on the inner and outer peripheries of the mesh ring structures, with the notches engaging the snap-on notches. Finally, the demoulding hanging rod is connected to the hanger positioning hole, and several vertical linings are fixedly connected between adjacent mesh ring structures.

[0022] To make the planking assembly, a number of inner molds and inner planks, as well as outer molds and outer planks, are processed according to the inner and outer contours of the ingot mold, and the inner planks are attached to the inner mold, and the outer planks are attached to the outer mold; the inner molds are sequentially and tightly laid on the inner periphery of the wooden frame and fastened, and the outer molds are laid on the outer periphery of the wooden frame and fastened, and the core box mounting positions are reserved on both sides of the wooden frame; after laying the planking assembly, the wooden mold body is obtained; the handle core box is set at the core box mounting position and connected to the wooden frame;

[0023] To make the skirt assembly, several wooden fixed skirts, wooden movable skirts and foam movable skirts are made according to the skirt forming shape. A wooden fixed skirt is set at the upper end of the wooden mold body, and a foam movable skirt is used in the middle and fixed to the wooden mold body with double-sided tape. A wooden movable skirt is set at the lower end and embedded in the wooden mold body.

[0024] Compared with the prior art, the beneficial effects of the present invention are: 1. The shaping wooden mold of the steel ingot mold casting can form a shaping wooden mold structure with stable structure, good strength, large size and relatively light weight through the arrangement of the wooden frame, the floor board assembly and the skirt assembly, and the shaping wooden mold is also relatively simple to make and has good plasticity. It can make wooden molds with basically the same outline size according to the shape of the required casting, so that the required large-scale steel ingot mold castings can be produced by shaping through the wooden mold; 2. The wooden frame is the basic frame structure of the shaping wooden mold. By laying the floor board assembly on its inner and outer peripheries respectively, and arranging the skirt assembly and the handle core box, each component can be made in a block and unit manner, and then assembled, which reduces the difficulty of making the wooden mold; 3. The floor board assembly can be independently installed on the inner and outer peripheries of the wooden frame, which is convenient for its orderly installation and later repair. Each unit can be repaired separately according to the damaged position. The maintenance cost of the wooden formwork is reduced by the need to repair or replace the wooden formwork, and the planking components can also protect the internal wooden frame to avoid damage to the internal wooden frame, which can essentially increase the service life of the entire wooden formwork; 4. The independent setting of the skirt component and the hanger core box also has the above-mentioned convenient maintenance effect. Not only that, the skirt component and the hanger core box can also form a unique shape structure to meet special requirements; 5. The use of a bayonet connection method can significantly reduce the use of metal connectors such as screws, and avoid damage to the original structure of the wood by screw holes; 6. The mesh ring can form a basic inner and outer contour shape. Through the setting of multiple groups of upper, middle and lower groups, equipped with the wooden squares, they can be connected together to form a three-dimensional structure. While ensuring the stability and support strength of the basic frame, it can also reduce wood consumption and its own weight; 7. The setting of the steel ring and the vertical lining can further enhance the strength of the mesh ring structure and improve the force of the mesh ring structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an overall schematic diagram of a wooden mold for forming a steel ingot mold casting according to the present invention;

[0026] Figure 2 This is a schematic structural diagram of the wooden frame of the molding wooden mold of the present invention;

[0027] Figure 3 This is a schematic structural diagram of the wooden mold body of the molding wooden mold of the present invention;

[0028] Figure 4 A schematic diagram of the mesh ring structure of the present invention;

[0029] Figure 5 This is a schematic structural diagram of a single-layer mesh ring of the present invention;

[0030] Figure 6 This is a schematic structural diagram of multiple wooden blocks of the present invention;

[0031] Figure 7 This is a schematic diagram of the structure of the steel ring provided on the mesh ring of the present invention;

[0032] Figure 8 It is a structural schematic diagram of the decking assembly of the present invention;

[0033] Figure 9 This is a structural diagram of the core box of the hanger of the present invention;

[0034] In the figure: 1. Wooden frame; 2. Decking assembly; 201. Inner mold; 202. Inner decking; 203. Outer mold; 204. Outer decking; 3. Skirt assembly; 4. Hanger core box; 401. Mounting part; 402. Core-pulling mold; 5. Mesh ring structure; 501. Mesh ring; 6. Wooden square; 7. Bayonet; 8. Notch; 9. Steel ring; 10. Annular groove; 11. Hanger positioning hole. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0037] like Figures 1 to 3As shown, a wooden mold for shaping a steel ingot mold casting comprises a wooden frame 1, wherein the wooden frame 1 has an axial through hole, and the diameter of one end of the axial through hole is larger than the diameter of the other end; a plurality of decking assemblies 2 are respectively laid on the inner and outer peripheries of the wooden frame 1 to obtain a wooden mold body that is adapted to the inner and outer contours of the steel ingot mold casting; skirt assemblies 3 are respectively provided at the two ends and the middle of the wooden mold body, and the skirt assemblies 3 are connected to the decking assemblies 2 and / or the wooden frame 1; hanger core boxes 4 are also respectively provided on both sides of the wooden mold body, and a core box installation position is reserved for the outer decking assembly 2 during production, and the hanger core box 4 is arranged at the core box installation position and connected to the wooden frame 1.

[0038] The shaping wooden mold of the steel ingot mold casting can form a shaping wooden mold structure with stable structure, good strength, large size and relatively light weight through the arrangement of the wooden frame 1, the decking assembly 2 and the skirt assembly 3. Moreover, the shaping wooden mold is relatively simple to make and has good plasticity. It can produce wooden molds with basically the same outline dimensions according to the shape of the required casting, so that the required large steel ingot mold casting can be produced by shaping through the wooden mold.

[0039] The wooden skeleton 1 is the basic frame structure of the wooden mold. By laying the plank components on the inner and outer peripheries thereof respectively, and equipping them with the skirt components and the handle core box, each component can be manufactured in a block and unit manner and then assembled, thereby reducing the difficulty of making the wooden mold.

[0040] The plank assembly 2 can be independently installed on the inner and outer peripheries of the wooden frame 1, which is convenient for its orderly installation and later repair. After the wooden mold is made, it is not used only once, but will be used repeatedly and will be used every time it is shaped. During the transportation and use of the wooden mold, its internal and external structures will be more or less worn or damaged. The cost of remaking the wooden mold due to damage is high, so when damage occurs, it is mostly maintained by repairing it. The plank assembly of the present application can be used to repair or replace each unit separately according to the damaged position, which reduces the maintenance cost of the wooden mold. Moreover, these plank assemblies can also protect the internal wooden frame to avoid damage to the internal wooden frame, which can essentially improve the service life of the entire wooden mold.

[0041] The independent setting of the skirt component 3 and the hanger core box 4 also has the above-mentioned effects. Not only that, the skirt component and the hanger core box can also form a unique shape structure to meet special requirements. For example, the skirt component can form a circular surrounding structure on the wooden mold body, and the hanger core box can produce a hanging ear structure with a smooth surface, no burrs and flash, and there are no defects that affect the strength around the hanging ear (within 2.5 times the diameter of the hanging ear).

[0042] In this embodiment, the axial dimension of the wooden mold body exceeds 3000mm, about 3200mm, and the inner and outer circumferential dimensions exceed 2000mm. The inner circumferential diameter of the wooden mold body is between 2250mm and 2500mm, and is a structure with a larger top and a smaller bottom. The outer circumferential diameter of the wooden mold body is between 3400 and 3550mm.

[0043] Further, such as Figure 4 and Figure 5 As shown, the wooden frame 1 includes a multi-layer mesh structure 5 arranged in parallel up and down, and the inner and outer peripheries of the mesh structure 5 are respectively provided with a plurality of bayonet holes 7, and the bayonet holes 7 are respectively connected to wooden squares 6, and the wooden squares 6 on the inner and outer peripheries are staggered.

[0044] The mesh ring structure 5 can form a basic inner and outer contour shape. Through the setting of multiple groups at the top, middle and bottom, and equipped with the wooden squares 6, they can be connected together to form a three-dimensional structure. In addition to connecting and supporting several of the mesh ring structures, the setting of the wooden squares can also provide a certain connection strength to ensure the stability of the basic frame.

[0045] The use of bayonet connection can significantly reduce the use of metal connectors such as screws. This connection structure, similar to mortise and tenon joints, can not only ensure the connection strength, but also avoid the damage of the screw holes to the original structure of the wood, so as not to reduce its overall structural strength and stability.

[0046] This staggered arrangement of the inner and outer peripheries can reduce the total number of wooden beams while ensuring the overall connection and support strength. The inner and outer peripheries are provided with 6 to 15 wooden beams respectively, for example, eight beams each.

[0047] Furthermore, each of the mesh ring structures 5 includes multiple layers of superimposed mesh rings 501, and the number of layers of the mesh rings 501 is 2 to 5; the mesh ring 501 is a polygonal structure, and the bayonet 7 is respectively provided on the inner and outer edges of the polygonal structure, and the width of the mesh ring 501 plus the thickness of the decking assembly 2 is the cross-sectional width dimension of the ingot mold casting.

[0048] The number of sides of the polygonal structure is 14 to 30, generally an even number, so that it can be close to a circular ring, but not a circular ring; the spacing between adjacent mesh ring structures 5 does not exceed 700 mm, preferably not more than 600 mm. Too large a spacing will affect the overall strength and stability, and too small a spacing will consume more wood and the structure will be more complicated.

[0049] The size of the mesh ring 501 is determined by the cross section of the steel ingot mold casting minus the thickness of the floor plate. The thickness of a single layer of the mesh ring is the thickness of a general plate, such as about 35 mm.

[0050] Furthermore, the mesh ring structure 5 at the top is provided with three layers of mesh rings, the mesh ring structure 5 at the bottom is provided with four layers of mesh rings, and the multiple mesh ring structures 5 in the middle are respectively provided with two layers of mesh rings, and the multiple mesh ring structures in the middle are evenly distributed.

[0051] Each mesh ring 501 is a polygonal mesh ring. Due to the limitations of processing equipment and plate size, it is difficult to form the mesh ring 501 in one piece. Each layer of the mesh ring can be milled into blocks and then connected with glue nails. In this way, it can be produced in blocks according to the size of the template and then spliced ​​into polygonal circles, which is more convenient.

[0052] Further, such as Figure 7 As shown, the mesh ring structure 5 further includes a steel ring 9, which is arranged below the mesh ring 501 or between adjacent mesh rings 501. The mesh ring 501 is provided with an annular groove 10 connected to the steel ring 9.

[0053] The setting of the steel ring 9 can further enhance the strength of the mesh ring structure 5 and improve the stress of the mesh ring assembly. For the wooden mold of the large ingot mold casting, the top and bottom are the main supporting and stress-bearing positions. The steel ring is embedded in the bottom surface of the top mesh ring assembly, and the steel ring is embedded in the middle of the bottom mesh ring assembly.

[0054] Furthermore, the steel ring 9 is in a circular shape, the width of the steel ring 9 is smaller than the width of the mesh ring, the width of the steel ring 9 is about 100 mm, and the thickness of the steel ring 9 is 10 to 15 mm; the annular groove 10 provided on the mesh ring 5 can accommodate the installation of the steel ring 9.

[0055] Further, such as Figure 6 As shown, the wooden square 6 is provided with a number of notches 8 spaced apart along its length direction, and notches 8 are also provided at both ends of the wooden square 6, and the notches 8 cooperate with the bayonet 7 to connect the wooden square 6; vertical linings are also provided between adjacent mesh ring structures 5, and these vertical linings are connected between the upper and lower mesh rings, which can further support and fix each layer of the mesh ring structure, which is beneficial to improving the overall support strength and stability.

[0056] Furthermore, a plurality of demoulding hangers are provided in the wooden frame 1 , and the demoulding hangers are arranged parallel to the axial direction of the wooden frame 1 . The ends of the demoulding hangers are provided with hanging rings, and the ends of the demoulding hangers and the hanging rings do not exceed the end surface of the wooden frame 1 .

[0057] The hanger positioning holes 11 are set on the mesh ring 5 and the steel ring 9 in a one-to-one correspondence. There are four hanger positioning holes 11 evenly spaced at 90 degrees. A demoulding hanger that runs through the entire frame structure can be set through the hanger positioning holes 11. The entire wooden mold can be conveniently lifted by the demoulding hanger and the lifting ring. Especially in the subsequent casting cavity molding process, these demoulding lifting rings and hangers can be used to remove the sand mold from the wooden mold.

[0058] The hanging ring is of hidden design and does not exceed the upper end surface of the uppermost mesh ring component. Such a setting does not affect the coordination of the wooden mold with other structural shapes, such as the coordination with the cover box. The coordination will not be affected by the protruding hanging ring, nor will people and objects be scratched by the protruding ring or rod.

[0059] Further, combined Figure 8 As shown, the decking assembly 2 includes an inner mold 201 and an inner decking 202, as well as an outer mold 203 and an outer decking 204; the inner mold 201 is axially connected to the inner periphery of the wooden frame 1, and the inner decking 202 is connected to the outer surface of the inner mold 201, and a plurality of the inner molds 201 are circumferentially arranged in sequence on the inner periphery of the wooden frame 1; the outer mold 203 is axially connected to the outer periphery of the wooden frame 1, and the outer decking 204 is connected to the outer surface of the outer mold 203, and a plurality of the outer molds 203 are circumferentially arranged in sequence on the outer periphery of the wooden frame 1 and reserve the core box installation position.

[0060] The inner mold 201 and the outer mold 203 are long strip plate structures, which are manufactured by independent processing. They can shape the mold body according to different shape requirements to form the unique inner and outer peripheral shape structure of the ingot mold casting; the setting of the inner floor plate 202 and the outer floor plate 204 can form continuous and smooth inner and outer surfaces, and can also protect the internal mold and skeleton structure.

[0061] The wooden frame 1 ensures the strength of the model and conserves materials. The decking assembly 2 is used to shape the inner and outer surfaces of the model. In this embodiment, the cross-section of the ingot mold assembly is shaped like a plum blossom petal, with 16 petals on each side. Limited by the size of the board (35 mm), the three-dimensional model is divided into blocks, and the decking is made of 1 / 2 of the same petal shape. The inner decking (inner mold) and the outer decking (outer mold) are both petal-shaped, but one is convex and the other is concave. This ensures that the maximum thickness of the board does not exceed 35 mm, meeting the board requirements, and the minimum thickness exceeds 20 mm, meeting the strength requirements. Because there is a movable skirt at the bottom of the outer perimeter, the length of the outer decking needs to be reduced by the length of the movable skirt.

[0062] Furthermore, the skirt assembly 3 includes a movable skirt and a fixed skirt, and the fixed skirt and the movable skirt are respectively circumferentially connected to the outer periphery of the wooden mold body; the fixed skirt and the movable skirt both include a wooden skirt and a foam skirt.

[0063] The fixed skirt and the movable skirt refer to the installation form of the skirt. The fixed skirt is generally fixed and will not be replaced frequently, which does not mean that it is non-detachable. The movable skirt is relatively flexible and easy to disassemble. It can be replaced with skirts of different sizes and shapes according to actual needs. This does not mean that the movable skirt is not fixed when connected.

[0064] The wooden and foam skirts primarily refer to the materials used for the skirts. The forces and shapes of the skirt models vary at different locations, so different skirt materials are selected accordingly to achieve the best assembly results. In this embodiment, the top of the steel ingot mold casting model requires direct demolding. A fixed wooden skirt is used to ensure strength and stability. A movable foam skirt is used in the middle to ensure smoothness. A movable wooden skirt is used below, embedded in the main body and rounded to provide both strength and flexibility.

[0065] Since the hanger of the ingot mold casting is a curved surface and has high requirements for smoothness and strength, the hanger core box is used to make a hanger model separately, combined with Figure 9 As shown, the handle core box 4 includes a mounting portion 401 and core-pulling molds 402 arranged at both ends of the mounting portion 401. The core-pulling molds 402 are used to make the handle, which can ensure that the cavity of the handle head is smoothly made, the mold is easy to remove, and it can be used multiple times, saving the cost of model making; the mounting portion 401 is snap-connected to the core box mounting position, and its shape is similar to the outer mold, and it also has a part of the skirt structure in the middle. This method can directly allow the handle core box to be installed on the wooden frame 1, and is compatible with the outer decking assembly and the skirt assembly.

[0066] A method for manufacturing a wooden mold for a steel ingot mold casting, the method comprising the following steps:

[0067] A three-dimensional diagram of the wooden mold is established according to the process drawing of the steel ingot mold casting, and the wooden mold is divided into blocks according to the three-dimensional diagram to respectively design the wooden frame 1, the decking assembly 2 and the skirt assembly 3;

[0068] The wooden frame 1 is assembled by a mesh ring 501, a steel ring 9, a demoulding suspension rod, a wooden square 6 and a vertical lining. First, the inner and outer edges of the mesh ring 501 are respectively processed with a bayonet 7, and a notch 8 is processed on the wooden square 6. The mesh ring 501 and the steel ring 9 are respectively provided with corresponding suspension rod positioning holes 11; secondly, multiple mesh rings 501 are stacked together to form multiple mesh ring structures 5. The top mesh ring structure is 3 layers of board, the bottom mesh ring structure is 4 layers of board, and the middle mesh ring structure is 2 layers, which are evenly distributed. The top and bottom mesh ring structures are connected to the steel ring 9. If the bottom of the wooden mold of the steel ingot mold has a wooden movable skirt, the upper part of the wooden movable skirt needs to be supported. A layer of mesh ring can be made of a single layer of board material at the upper position of the wooden movable skirt; multiple mesh ring structures 5 are arranged at intervals of no more than 600 mm, and the wooden squares 6 are installed on the inner and outer peripheries of the mesh ring structure 5. The notches 8 engage with the bayonet 7 and are fixed to each other; finally, the demoulding boom is connected to the boom positioning hole 11, and a hanging ring is set at the upper end. Then, a plurality of the vertical linings are fixedly connected between adjacent mesh ring structures 5 to further support these mesh rings.

[0069] To make the planking assembly 2, a number of inner molds 201 and inner planking 202, as well as outer molds 203 and outer planking 204 are processed according to the inner and outer contours of the ingot mold, and the inner planking 202 is attached to the inner mold 201, and the outer planking 204 is attached to the outer mold 203; the inner mold 201 is sequentially and tightly laid on the inner periphery of the wooden frame 1 and fastened, and the outer mold 203 is laid on the outer periphery of the wooden frame 1 and fastened, and the core box mounting positions are reserved on both sides of the wooden frame 1; after laying the planking assembly, the wooden mold body is obtained; the handle core box 4 is arranged at the core box mounting position and connected to the wooden frame 1;

[0070] To make the skirt assembly 3, several wooden fixed skirts, wooden movable skirts and foam movable skirts are made according to the skirt forming shape. A wooden fixed skirt is set at the upper end of the wooden mold body, and a foam movable skirt is used in the middle, which is fixed to the wooden mold body by double-sided tape. A wooden movable skirt is set at the lower end and embedded in the wooden mold body.

[0071] After assembly is completed, the edges and corners and excess parts are polished, and the release agent is applied to the inner and outer circumferential surfaces and end faces respectively to obtain the final wooden mold. After passing the inspection, it is put into storage for use.

[0072] By using the above method to produce the shaped wooden mold, the difficulty of producing large, complex, and curved wooden molds can be reduced. Through reasonable block design, each unique component can be produced more conveniently, and a three-dimensional structure can be formed after combination to meet the unique structural requirements of the steel ingot mold. Moreover, the processing and production processes can be standardized to ensure that the quality of the wooden mold produced each time is guaranteed.

[0073] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A wooden mold for steel ingot casting, characterized in that: The invention comprises a wooden frame having an axial through hole, wherein one end of the axial through hole has a larger diameter than the other end; a plurality of decking assemblies are laid on the inner and outer peripheries of the wooden frame, respectively, to obtain a wooden mold body adapted to the inner and outer contours of the steel ingot mold casting; skirt assemblies are respectively provided at both ends and the middle of the wooden mold body, and the skirt assemblies are connected to the decking assemblies and / or the wooden frame; a hanger core box is also provided on both sides of the wooden mold body, and a core box mounting position is reserved on the outer decking assembly during manufacture, and the hanger core box is arranged at the core box mounting position and connected to the wooden frame; The wooden frame comprises a multi-layer mesh structure arranged in parallel up and down, wherein the inner and outer peripheries of the mesh structure are respectively provided with a plurality of bayonets, the bayonets are respectively connected to wooden squares, and the wooden squares on the inner and outer peripheries are staggered; Each of the mesh ring structures comprises multiple layers of superimposed mesh rings, and the number of layers of the mesh rings is 2 to 5; the mesh ring is a polygonal structure, and the bayonet is respectively provided on the inner and outer edges of the polygonal structure; the width of the mesh ring plus the thickness of the decking assembly is the cross-sectional width dimension of the ingot mold casting.

2. The wooden mold for forming a steel ingot mold casting according to claim 1, characterized in that: The interval between adjacent mesh ring structures does not exceed 700 mm. The top mesh ring structure is provided with three layers of mesh rings, the bottom mesh ring structure is provided with four layers of mesh rings, and the multiple mesh ring structures in the middle are respectively provided with two layers of mesh rings.

3. The wooden mold for forming a steel ingot mold casting according to claim 1, characterized in that: The mesh ring structure further includes a steel ring, which is arranged below the mesh ring or between adjacent mesh rings. The mesh ring is provided with an annular groove connected to the steel ring.

4. The wooden mold for forming a steel ingot mold casting according to claim 1, characterized in that: The wooden square is provided with a plurality of notches at intervals along its length direction, and notches are also provided at both ends of the wooden square. The notches cooperate with the bayonet to connect the wooden square; and vertical linings are also provided between adjacent mesh ring structures.

5. The wooden mold for forming a steel ingot mold casting according to claim 1, characterized in that: A plurality of demoulding suspension rods are also provided in the wooden frame. The demoulding suspension rods are arranged parallel to the axial direction of the wooden frame. The ends of the demoulding suspension rods are provided with hanging rings. The ends of the demoulding suspension rods and the hanging rings do not exceed the end surface of the wooden frame.

6. The wooden mold for forming a steel ingot mold casting according to claim 1, characterized in that: The decking assembly includes an inner tire and an inner decking, as well as an outer tire and an outer decking; the inner tire is axially connected to the inner periphery of the wooden frame, the inner decking is connected to the outer surface of the inner tire, and a plurality of the inner tires are circumferentially arranged in sequence on the inner periphery of the wooden frame; the outer tire is axially connected to the outer periphery of the wooden frame, the outer decking is connected to the outer surface of the outer tire, and a plurality of the outer tires are circumferentially arranged in sequence on the outer periphery of the wooden frame and reserve the core box installation position.

7. The wooden mold for forming a steel ingot mold casting according to claim 1, characterized in that: The skirt assembly includes a movable skirt and a fixed skirt. The fixed skirt and the movable skirt are respectively connected to the outer periphery of the wooden mold body in a circumferential direction. The fixed skirt and the movable skirt both include a wooden skirt and a foam skirt.

8. A method for making a wooden mold for a steel ingot mold casting according to any one of claims 1 to 7, characterized in that: The production method comprises the following steps: A three-dimensional diagram of the wooden mold is established according to the process drawing of the steel ingot mold casting, and the wooden mold is divided into blocks according to the three-dimensional diagram to respectively design the wooden frame, the decking assembly and the skirt assembly; The wooden frame is assembled from a mesh ring, a steel ring, a demoulding hanging rod, wooden squares and vertical linings. First, snap-on notches are processed on the inner and outer edges of the mesh ring, and notches are processed on the wooden squares. Corresponding hanger positioning holes are respectively opened on the mesh ring and the steel ring. Secondly, multiple mesh rings are stacked together to form multiple mesh ring structures, some of which are connected to the steel rings. Multiple mesh ring structures are arranged at intervals, and the wooden squares are installed on the inner and outer peripheries of the mesh ring structures, with the notches engaging the snap-on notches. Finally, the demoulding hanging rod is connected to the hanger positioning hole, and several vertical linings are fixedly connected between adjacent mesh ring structures. To make the planking assembly, a number of inner molds and inner planks, as well as outer molds and outer planks, are processed according to the inner and outer contours of the ingot mold, and the inner planks are attached to the inner mold, and the outer planks are attached to the outer mold; the inner molds are sequentially and tightly laid on the inner periphery of the wooden frame and fastened, and the outer molds are laid on the outer periphery of the wooden frame and fastened, and the core box mounting positions are reserved on both sides of the wooden frame; after laying the planking assembly, the wooden mold body is obtained; the handle core box is set at the core box mounting position and connected to the wooden frame; To make the skirt assembly, several wooden fixed skirts, wooden movable skirts and foam movable skirts are made according to the skirt forming shape. A wooden fixed skirt is set at the upper end of the wooden mold body, and a foam movable skirt is used in the middle and fixed to the wooden mold body with double-sided tape. A wooden movable skirt is set at the lower end and embedded in the wooden mold body.

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