A replaceable housing casting mold

Abstract

The utility model provides a kind of replaceable shell casting casting mould, it is related to casting technical field, specifically including two pedestals, and one side of one pedestal is fixedly installed with fixed seat, the top of fixed seat is fixedly installed with hydraulic cylinder, and hydraulic cylinder penetrates fixed seat and is fixedly connected with it, the output end of hydraulic cylinder is fixedly connected with another pedestal, the side of two pedestals mutually close is all provided with casting mould shell, and two pedestals are all rotatably connected with two-way screw rod.The linkage structure of "two-way screw rod-sliding block-inserting rod-inserting slot" is used in the application, the quick fixing and disassembly of casting mould shell are realized, the whole replacement process does not need additional tool, and one person can operate, greatly reduces the labor intensity of operator, and by setting heat insulating sleeve outside inserting rod, the gap between inserting rod and inserting slot is filled, the fixing tightness is enhanced, and the mould shell is prevented from vibration displacement during casting process.

Description

Technical Field

[0001] This utility model relates to the field of casting technology, specifically a casting mold for replaceable shell casting. Background Technology

[0002] Casting molds, as core process equipment in modern industrial production, play an irreplaceable role in the manufacturing of shell-type parts. From lightweight thin-walled shells for aerospace vehicles to automobile engine blocks and precision housings for electronic products, these parts with complex geometries and high precision requirements all rely on casting molds for mass production. By injecting molten metal into the mold cavity and allowing it to cool and solidify to form the desired shape, not only is production efficiency significantly improved, but material waste is also effectively reduced.

[0003] Chinese Patent Publication No. CN213052617U provides a casting mold, comprising: a first mold body and a second mold body, having a first state in which they are fitted together and a second state in which they are separated. When the first mold body and the second mold body are in the first state, a cavity for casting is formed between the first mold body and the second mold body; an adjustment mechanism, comprising a pair of horizontal adjustment modules and multiple vertical adjustment modules, wherein the pair of horizontal adjustment modules is slidably connected to the first mold body or the second mold body, or two pairs of horizontal adjustment modules are respectively slidably connected to the first mold body and the second mold body and are correspondingly arranged; and vertical adjustment modules are arranged between the pair of horizontal adjustment modules and slidably connected to the pair of horizontal adjustment modules to adjust the size of the cavity. This invention provides a casting mold that utilizes a pair of horizontal adjustment modules and multiple vertical adjustment modules of different widths to form cavities of different sizes, greatly reducing production costs.

[0004] In the existing technology, the use of a casting mold only mentions that "the first mold body and the second mold body have a first state of mutual contact". In the actual casting process, when the molten metal fills the cavity, pressure and vibration will be generated. The first / second mold body, which has no fixed structure, is prone to relative displacement, which may not only cause cavity deformation and decrease the dimensional accuracy of the casting, but also cause molten metal leakage, posing production safety hazards and casting scrap risks. Therefore, we have made improvements to this and proposed a casting mold for replaceable shell casting. Utility Model Content

[0005] The purpose of this utility model is to address the problem that current casting molds lack a fixed structure after mold closing, resulting in poor cavity stability.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0007] A replaceable shell casting mold achieves "quick fixation" of the mold shell through a linkage structure of "bidirectional lead screw-slider-insertion rod-slot". Furthermore, by filling the gaps with a heat insulation sleeve and enhancing tightness, it can prevent mold displacement caused by casting vibration, thereby improving the aforementioned problems.

[0008] The application is as follows:

[0009] A replaceable shell casting mold includes two bases. A fixed seat is fixedly installed on one side of one of the bases. A hydraulic cylinder is fixedly installed on the top of the fixed seat and passes through the fixed seat and is fixedly connected to it. The output end of the hydraulic cylinder is fixedly connected to the other base. A casting mold shell is provided on the side of each of the two bases that is close to each other. A bidirectional lead screw is rotatably connected to each of the two bases. Two sliders are threaded to the outer side of each of the two bidirectional lead screws and are slidably connected to the base. Two insert rods are fixedly installed on the side of each of the sliders that is close to the casting mold shell and pass through one side of the base and are slidably connected to it. A heat insulation sleeve is fixedly installed on the outer side of each of the insert rods. Several slots that mate with the heat insulation sleeves are opened on the corresponding sides of the two casting mold shells.

[0010] As a preferred technical solution of this application, a worm gear is fixedly installed on one side of each of the two bidirectional lead screws, and a worm is meshed on the outer side of each of the two worm gears. Both the worm gear and the worm are rotatably connected to the base. A handle is fixedly installed on the side of each of the two worms that are close to each other. The handle passes through one side of the base and is rotatably connected to it. A groove is fixedly installed on the side of each of the two bases that are close to each other. The handle is inserted into the inside of the groove and is rotatably connected to it.

[0011] As a preferred technical solution of this application, a negative pressure pump is embedded in one side of one of the bases, and a U-shaped tube is fixedly installed inside one of the bases. The U-shaped tube has an air inlet hole that cooperates with the negative pressure pump. Several connecting pipes are fixedly installed at the bottom of the U-shaped tube. Several air inlets that cooperate with the connecting pipes are opened at the bottom of the U-shaped tube. Several connecting pipes pass through the bottom of one of the bases and are fixedly connected to it. Several connecting pipes extend into the interior of the rubber pad and are fixedly connected to it. A dustproof net is fixedly installed inside the interior of several connecting pipes.

[0012] As a preferred technical solution of this application, a rubber pad is fixedly installed at the bottom of one of the bases, and the fixed seat is fixedly connected to the rubber pad. Guide rods are fixedly installed at the four corners of the top of one of the bases. Several guide rods pass through another base and are slidably connected to it. Several connecting pipes extend into the interior of the rubber pad and are fixedly connected to it.

[0013] As a preferred technical solution of this application, several snap-fit ​​structures are provided on the outer sides of both casting mold housings. Each snap-fit ​​structure includes a U-shaped plate, which is inserted into and slidably connected to the inside of the casting mold housing. Movable blocks are provided inside the casting mold housing on both sides of the U-shaped plate. Both movable blocks are slidably connected to the casting mold housing and fixedly connected to the U-shaped plate. Two return springs are fixedly installed on the side of the two movable blocks near the U-shaped plate and on the corresponding sides of the U-shaped plate. The ends of several return springs near the U-shaped plate are fixedly connected to the casting mold housing. A rubber pad is embedded on the side of the U-shaped plate near the casting mold housing. An infusion tube is provided on the outer side of the casting mold housing, and the infusion tube is snap-fitted to several U-shaped plates.

[0014] As a preferred technical solution of this application, a controller is embedded on one side of one of the bases, the controller is electrically connected to a hydraulic cylinder and a negative pressure pump, and a collection frame is fixedly installed on the top outer side of one of the casting mold housings.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In the scheme of this application:

[0017] (1) Through the linkage structure of "two-way lead screw - slider - insert rod - slot", the casting mold shell can be quickly fixed and disassembled. The entire replacement process does not require additional tools and can be operated by a single person, which greatly reduces the labor intensity of operators. Furthermore, by setting a heat insulation sleeve on the outside of the insert rod to fill the gap between the insert rod and the slot, the fixing tightness is enhanced, and the mold shell is prevented from displacing due to vibration during the casting process.

[0018] (2) By drawing air from the return tube and connecting tube by a negative pressure pump, the rubber pad is tightly adsorbed on the surface of the worktable under negative pressure. This can improve the bonding strength between the mold and the worktable, effectively offset the displacement force generated by casting vibration, reduce the vibration amplitude of the mold during operation, ensure the stability of the casting cavity, and improve the surface smoothness and dimensional accuracy of the casting. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a side sectional view of the present invention.

[0021] Figure 3 This is a partial structural diagram of the present invention;

[0022] Figure 4 This is a front sectional view of the present invention.

[0023] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0024] Explanation of reference numerals in the accompanying drawings: 1. Base; 2. Fixed base; 3. Hydraulic cylinder; 4. Casting mold housing; 5. Two-way lead screw; 6. Slider; 7. Insert rod; 8. Worm gear; 9. Worm; 10. Heat insulation sleeve; 11. Guide rod; 12. Infusion tube; 13. U-shaped plate; 14. Moving block; 15. Return spring; 16. Collection frame; 17. Negative pressure pump; 18. Return tube; 19. Connecting tube; 20. Controller. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0031] Example 1: Please refer to the appendix of the instruction manual. Figure 1 -3, a replaceable shell casting mold, comprising two bases 1, one of which has a fixed base 2 fixedly mounted on one side, a hydraulic cylinder 3 fixedly mounted on the top of the fixed base 2, the hydraulic cylinder 3 passing through the fixed base 2 and fixedly connected thereto, the output end of the hydraulic cylinder 3 being fixedly connected to the other base 1, casting mold shells 4 being provided on the sides of the two bases 1 that are close to each other, a bidirectional lead screw 5 being rotatably connected to both bases 1, two sliders 6 being threadedly connected to the outer sides of the two bidirectional lead screws 5, and the sliders 6 being slidably connected to the bases 1, two insert rods 7 being fixedly mounted on the side of several sliders 6 that are close to the casting mold shell 4, and the insert rods 7 passing through one side of the base 1 and being slidably connected thereto, heat insulation sleeves 10 being fixedly mounted on the outer sides of several insert rods 7, and several slots that mate with the heat insulation sleeves 10 being provided on the corresponding sides of the two casting mold shells 4.

[0032] In this embodiment of the utility model, when it is necessary to install the casting mold housing 4, the casting mold housing 4 is placed on one side of the two bases 1 that are close to each other. Then, the bidirectional lead screw 5 is rotated. Since the bidirectional lead screw 5 is threadedly connected to the slider 6 and the slider 6 is slidably connected to the base 1, the rotation of the bidirectional lead screw 5 will drive the two sliders 6 to move along the base 1 towards the casting mold housing 4. When the slider 6 moves, it will drive the insertion rod 7 fixed on one side to move synchronously. After the insertion rod 7 passes through the base 1, the heat insulation sleeve 10 on its outer side will be inserted into the corresponding slots on both sides of the casting mold housing 4, thus completing the fixation of the casting mold housing 4.

[0033] When casting is required, the hydraulic cylinder 3 is activated by the controller 20. The output end of the hydraulic cylinder 3 pushes the base 1, which is fixedly connected to it, to move closer to the other base 1. At the same time, the guide rod 11 slides along the other base 1 to ensure that the base 1 moves smoothly until the two casting mold shells 4 fit tightly together to form a complete casting cavity. After casting is completed, the output end of the hydraulic cylinder 3 is controlled to retract, which drives the base 1 to reset, realizes mold separation, and facilitates the removal of the casting.

[0034] In this embodiment of the utility model, through the cooperation of the bidirectional lead screw 5, the slider 6, the insertion rod 7 and the slot, the insertion and removal of the insertion rod 7 and the slot can be completed simply by rotating the bidirectional lead screw 5, thereby realizing the installation and removal of the casting mold housing 4. Compared with the traditional bolt fixing method, the replacement efficiency is improved. At the same time, the heat insulation sleeve 10 on the outside of the insertion rod 7 can reduce the heat transfer from the mold housing to the base 1 during the casting process, prevent the base 1 from deforming due to high temperature, extend the service life of the equipment, and the cooperation between the heat insulation sleeve 10 and the slot can enhance the sealing performance and prevent the casting liquid from leaking.

[0035] The hydraulic cylinder 3 provides a stable driving force, which ensures that the two casting mold housings 4 fit tightly together, avoiding defects such as flash and material shortage in the castings due to poor fit; the guide rod 11 can effectively prevent the base 1 from moving or shifting, and improve the dimensional accuracy of the castings.

[0036] Example 2: Please refer to the appendix of the instruction manual. Figure 1 -5. In a preferred embodiment of this utility model, worm gears 8 are fixedly installed on one side of each of the two bidirectional lead screws 5, and worms 9 are meshed on the outer sides of each of the two worm gears 8. Both the worm gears 8 and the worms 9 are rotatably connected to the base 1. A handle is fixedly installed on the side of each of the two worms 9 that is close to each other. The handle passes through one side of the base 1 and is rotatably connected to it. A groove is fixedly installed on the side of each of the two bases 1 that is close to each other. The handle is inserted into the inside of the groove and is rotatably connected to it.

[0037] A negative pressure pump 17 is embedded on one side of one of the bases 1. A U-shaped tube 18 is fixedly installed inside one of the bases 1. An air inlet is provided on the U-shaped tube 18 to cooperate with the negative pressure pump 17. Several connecting tubes 19 are fixedly installed at the bottom of the U-shaped tube 18. Several air inlets are provided at the bottom of the U-shaped tube 18 to cooperate with the connecting tubes 19. Several connecting tubes 19 pass through the bottom of one of the bases 1 and are fixedly connected to it. Several connecting tubes 19 extend into the interior of the rubber pad and are fixedly connected to it. A dustproof net is fixedly installed inside the several connecting tubes 19.

[0038] A rubber pad is fixedly installed at the bottom of one of the bases 1, and a fixed seat 2 is fixedly connected to the rubber pad. Guide rods 11 are fixedly installed at the four corners of the top of one of the bases 1. Several guide rods 11 pass through another base 1 and are slidably connected to it. Several connecting tubes 19 extend into the interior of the rubber pad and are fixedly connected to it.

[0039] Several snap-fit ​​structures are provided on the outer side of both casting mold housings 4. The snap-fit ​​structures include U-shaped plates 13, which are inserted into the interior of the casting mold housing 4 and slidably connected thereto. Movable blocks 14 are provided inside the casting mold housing 4 on both sides of the U-shaped plates 13. Both movable blocks 14 are slidably connected to the casting mold housing 4 and fixedly connected to the U-shaped plates 13. Two return springs 15 are fixedly installed on the side of the two movable blocks 14 near the U-shaped plates 13 and on the corresponding sides of the U-shaped plates 13. The ends of the several return springs 15 near the U-shaped plates 13 are fixedly connected to the casting mold housing 4. A rubber pad is embedded on the side of the U-shaped plates 13 near the casting mold housing 4. An infusion tube 12 is provided on the outer side of the casting mold housing 4 and is snap-fitted with several U-shaped plates 13.

[0040] One of the bases 1 has a controller 20 embedded on one side, which is electrically connected to the hydraulic cylinder 3 and the negative pressure pump 17. A collection frame 16 is fixedly installed on the top of the outer side of one of the casting mold housings 4.

[0041] In this embodiment of the invention, when it is necessary to drive the bidirectional lead screw 5 to rotate, the operator rotates the handle in the groove of the base 1, which drives the worm 9 fixedly connected to it to rotate synchronously. Since the worm 9 meshes with the worm wheel 8 and the worm wheel 8 is fixedly connected to the bidirectional lead screw 5, the rotation of the worm 9 will drive the worm wheel 8 to rotate, thereby driving the bidirectional lead screw 5 to rotate and providing power for the movement of the slider 6. The worm wheel 8 and worm 9 transmission structure can realize the vertical transmission of power and has self-locking properties. After the handle is stopped, the worm wheel 8 will not rotate in the opposite direction, thereby ensuring that the position of the bidirectional lead screw 5 is fixed, and thus ensuring the stable fixing effect of the slider 6 and the insertion rod 7 on the casting mold shell 4.

[0042] During the casting process, to further enhance the stability of the fit between the base 1 located below (i.e., one of them) and the worktable, the negative pressure pump 17 is activated by the controller 20. When the negative pressure pump 17 is working, it draws air from inside the return tube 18 through the air inlet on the return tube 18, creating a negative pressure inside the return tube 18. The return tube 18 is connected to the connecting pipe 19 through the air inlet at the bottom, and the negative pressure is transmitted to the inside of the rubber pad through the connecting pipe 19. Under the action of the negative pressure, the rubber pad will be tightly adsorbed onto the surface of the worktable, thereby enhancing the stability of the entire mold. At the same time, the dustproof net inside the connecting pipe 19 can prevent dust and impurities on the surface of the worktable from entering the return tube 18 and the inside of the negative pressure pump 17, avoiding equipment blockage or damage, and ensuring the long-term stable operation of the negative pressure adsorption function.

[0043] The rubber pad at the bottom of the lower (i.e., one of the bases) is elastic. During negative pressure adsorption, the rubber pad can better conform to the workbench surface. Even if there are small protrusions or depressions on the workbench surface, the rubber pad can fill the gaps through its own deformation, further improving the sealing and stability of negative pressure adsorption. The sliding fit between the guide rod 11 and the base 1 can limit the movement direction of the upper (i.e., the other) base 1 when the hydraulic cylinder 3 drives it to move. This prevents the upper (i.e., the other) base 1 from horizontally shifting or tilting during movement, ensuring that the two casting mold shells 4 can be precisely aligned and guaranteeing the accuracy of the casting cavity. At the same time, the fixed seat 2 is fixedly connected to the rubber pad, which can enhance the stability of the fixed seat 2 and prevent the fixed seat 2 from shaking when the hydraulic cylinder 3 is working.

[0044] During the casting process, the infusion tube 12 is used to transport coolant or other auxiliary liquids. To ensure the fixed position of the infusion tube 12, it needs to be fixed by a snap-fit ​​structure. When installing the infusion tube 12, pull the U-shaped plate 13 away from the casting mold housing 4. The U-shaped plate 13 drives the movable block 14 fixedly connected to it to slide along the casting mold housing 4. When the movable block 14 moves, it will compress the return springs 15 on both sides, causing the return springs 15 to undergo elastic deformation. Then, place the infusion tube 12 in the slot of the U-shaped plate 13, release the U-shaped plate 13, and the return spring 15 pushes the movable block 14 to return to its original position under the action of elastic force. This will drive the U-shaped plate 13 to move closer to the infusion tube 12 until the rubber pad on the inner side of the U-shaped plate 13 is tightly attached to the surface of the infusion tube 12, thus completing the fixation of the infusion tube 12. When it is necessary to remove the infusion tube 12, simply repeat the operation of pulling the U-shaped plate 13. The operation is simple and quick.

[0045] The controller 20, as the core of the entire mold control, is electrically connected to the hydraulic cylinder 3 and the negative pressure pump 17. Operators can set the extension and retraction speed and stroke of the hydraulic cylinder 3, as well as the start and stop time and negative pressure intensity of the negative pressure pump 17 through the buttons or touch interface on the controller 20, so as to realize the automated control of the mold closing, mold opening and negative pressure adsorption process, reducing the difficulty of manual operation. At the same time, if the liquid in the casting mold shell 4 overflows or produces excess impurities during the casting process, it will fall into the collection box 16 on the top of the outer side of the casting mold shell 4. The collection box 16 can collect these substances in a concentrated manner to avoid contaminating the workbench or equipment, facilitate subsequent cleaning, and keep the production environment clean.

[0046] In this embodiment of the invention, the worm gear 8 and worm 9 transmission have a speed reduction and torque increase effect. The operator only needs to turn the handle with a small force to drive the bidirectional lead screw 5 to rotate, reducing labor intensity. At the same time, the handle is set in the groove of the base 1, which can prevent accidental contact that could cause the worm 9 to rotate, thus improving operational safety. The self-locking characteristic of the worm gear 8 and worm 9 transmission can prevent the bidirectional lead screw 5 from rotating in the opposite direction due to vibration or external force during operation, ensuring that the slider 6 and the insertion rod 7 are fixed in position, thereby ensuring that the casting mold housing 4 will not loosen during the casting process and reducing the scrap rate of castings.

[0047] The negative pressure adsorption structure allows the base 1 located below (i.e., one of them) to be tightly adsorbed onto the workbench surface through the rubber pad, effectively offsetting the displacement caused by mold vibration during the casting process, avoiding deformation of the casting cavity due to vibration, and improving the surface quality and precision of the castings; the dustproof net inside the connecting pipe 19 can filter impurities in the air, preventing them from entering the negative pressure pump 17 and the return pipe 18, reducing internal wear and blockage of the equipment, reducing the frequency of equipment maintenance, and extending the service life of the negative pressure pump 17.

[0048] The elastic properties of the rubber pad can fill the gap between the lower (i.e., one of the bases 1) and the worktable, enhance the sealing of the negative pressure adsorption, avoid air leakage leading to insufficient negative pressure, and ensure stable adsorption effect. Even on uneven worktable surfaces, the rubber pad can achieve a tight fit through deformation, expanding the applicable scenarios of the mold. The guiding effect of the guide rod 11 can limit the degree of freedom of movement of the upper (i.e., the other) base 1, prevent the upper (i.e., the other) base 1 from tilting or shifting under the drive of the hydraulic cylinder 3, ensure the alignment accuracy of the two casting mold shells 4, reduce casting defects caused by mold closing deviation, and improve the product qualification rate.

[0049] The snap-fit ​​structure uses the elastic force of the return spring 15 to clamp and fix the U-shaped plate 13 to the infusion tube 12. The installation and disassembly process does not require tools, shortens the operation time, and greatly improves the replacement efficiency of the infusion tube 12. At the same time, the rubber pad on the inner side of the U-shaped plate 13 can increase the friction with the infusion tube 12, prevent the infusion tube 12 from sliding, and avoid direct contact between the metal U-shaped plate 13 and the infusion tube 12, which would cause wear.

[0050] The controller 20 can automatically control the hydraulic cylinder 3 and the negative pressure pump 17, reducing manual intervention. Operators only need to set parameters to complete the mold closing, mold opening and negative pressure adsorption process, which can shorten each casting cycle and greatly improve production efficiency. At the same time, automated control can avoid human operation errors and ensure the consistency of the production process. The collection box 16 can collect the liquid and impurities that overflow during the casting process of the base 1 located below (i.e., one of them), preventing them from scattering onto the workbench or the ground, reducing the amount of cleaning work and lowering cleaning costs.

[0051] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A replaceable casing for casting a casting mold comprising two bases (1), characterized in that, A fixed seat (2) is fixedly installed on one side of one of the bases (1). A hydraulic cylinder (3) is fixedly installed on the top of the fixed seat (2). The hydraulic cylinder (3) passes through the fixed seat (2) and is fixedly connected to it. The output end of the hydraulic cylinder (3) is fixedly connected to the other base (1). A casting mold housing (4) is provided on the side of the two bases (1) that is close to each other. A two-way screw (5) is rotatably connected to the two bases (1). Two sliders (6) are threadedly connected to the outer side of the two two-way screws (5). The sliders (6) are slidably connected to the base (1). Two insert rods (7) are fixedly installed on the side of the sliders (6) that are close to the casting mold housing (4). The insert rods (7) pass through one side of the base (1) and are slidably connected to it. A heat insulation sleeve (10) is fixedly installed on the outer side of the insert rods (7). Several slots that cooperate with the heat insulation sleeves (10) are opened on the corresponding sides of the two casting mold housings (4).

2. The replaceable casing casting mold according to claim 1, wherein A worm gear (8) is fixedly installed on one side of each of the two bidirectional lead screws (5). A worm (9) is meshed on the outer side of each of the two worm gears (8). Both the worm gear (8) and the worm (9) are rotatably connected to the base (1). A handle is fixedly installed on the side of each of the two worms (9) that is close to each other. The handle passes through one side of the base (1) and is rotatably connected to it. A groove is fixedly installed on the side of each of the two bases (1) that is close to each other. The handle is inserted into the inside of the groove and is rotatably connected to it.

3. The replaceable casing casting mold according to claim 1, wherein A negative pressure pump (17) is embedded on one side of one of the bases (1), and a U-shaped tube (18) is fixedly installed inside one of the bases (1). An air inlet hole that cooperates with the negative pressure pump (17) is opened on the U-shaped tube (18). Several connecting tubes (19) are fixedly installed at the bottom of the U-shaped tube (18). Several air inlets that cooperate with the connecting tubes (19) are opened at the bottom of the U-shaped tube (18). Several connecting tubes (19) pass through the bottom of one of the bases (1) and are fixedly connected to it. Several connecting tubes (19) extend into the interior of the rubber pad and are fixedly connected to it. A dustproof net is fixedly installed inside the several connecting tubes (19).

4. The replaceable casing casting mold according to claim 3, wherein A rubber pad is fixedly installed at the bottom of one of the bases (1), and the fixed seat (2) is fixedly connected to the rubber pad. Guide rods (11) are fixedly installed at the four corners of the top of one of the bases (1). Several guide rods (11) pass through another base (1) and are slidably connected to it. Several connecting pipes (19) extend into the interior of the rubber pad and are fixedly connected to it.

5. The replaceable casing casting mold according to claim 1, wherein Both casting mold housings (4) have several snap-fit ​​structures on their outer sides. Each snap-fit ​​structure includes a U-shaped plate (13). The U-shaped plate (13) is inserted into and slidably connected to the casting mold housing (4). Movable blocks (14) are provided inside the casting mold housing (4) on both sides of the U-shaped plate (13). Both movable blocks (14) are slidably connected to the casting mold housing (4) and fixedly connected to the U-shaped plate (13). Two return springs (15) are fixedly installed on the side of the moving block (14) near the U-shaped plate (13) and on the corresponding sides of the U-shaped plate (13). The ends of the return springs (15) near the U-shaped plate (13) are fixedly connected to the casting mold housing (4). A rubber pad is embedded on the side of the U-shaped plate (13) near the casting mold housing (4). An infusion tube (12) is provided on the outside of the casting mold housing (4). The infusion tube (12) is snapped into the U-shaped plates (13).

6. The replaceable casing for a casting mold according to claim 1, wherein One of the bases (1) has a controller (20) embedded on one side, the controller (20) being electrically connected to a hydraulic cylinder (3) and a negative pressure pump (17), and a collection frame (16) is fixedly installed on the top of the outer side of one of the casting mold housings (4).

Images