A double-station large-diameter metal casting mold stripping device

Abstract

The present application relates to the technical field of aluminum alloy metal mold casting cleaning, and provides a double-station large-diameter metal mold stripping device, which comprises a base, a bracket vehicle, clamping mechanisms, an ejection mechanism and a control mechanism, the bracket vehicle and the ejection mechanism are respectively arranged at two ends of the base, the ejection mechanism comprises a second hydraulic cylinder, a mold pressing head connected with an output end of the second hydraulic cylinder and a guide assembly and a core bone push rod respectively connected with two ends of the mold pressing head, the guide assembly comprises a guide shaft, a support ring fixedly connected with one end of the guide shaft and guide pulleys arranged on the guide shaft at intervals, two groups of clamping mechanisms are symmetrically arranged on the base, each clamping mechanism comprises a base, a connecting rod hingedly connected to the base, a first hydraulic cylinder, a clamping plate hingedly connected with an output end of the first hydraulic cylinder, and the control mechanism clamps and loosens the metal mold by means of the clamping plate and drives the mold pressing head to eject and strip the metal mold. The present application can stably hold, accurately guide, eject and strip metal molds with different diameters.

Description

Technical Field

[0001] This invention relates to the field of aluminum alloy metal mold casting cleaning technology, and in particular to a dual-station large-diameter metal mold demolding device. Background Technology

[0002] With the rapid development of aluminum alloy casting technology, differential pressure casting has been widely used in the aerospace, automotive, and heavy equipment manufacturing industries due to its ability to produce high-quality, high-density castings. In the post-processing stage of this process, safely and efficiently demolding the solidified aluminum alloy casting from its metal mold is a crucial step that directly affects production cycle time, manufacturing costs, and the labor intensity of workers.

[0003] Currently, most metal mold demolding equipment widely used in the industry is designed for a single station and a single specification, typically only suitable for metal molds with a fixed outer diameter (e.g., Ø960mm). When the product specification changes to Ø1050mm, existing equipment becomes unusable due to insufficient demolding force, clamping mechanisms that cannot adapt to larger diameters, and poor guiding accuracy. Furthermore, some equipment uses a single-sided ejection structure, which makes it difficult to achieve complete demolding in one go for molds with large lengths or asymmetrical ends, often requiring manual assistance or multiple clamping operations, resulting in low demolding efficiency and high operational risks. Simultaneously, existing equipment generally lacks clamping mechanisms that can simultaneously adapt to multiple diameter specifications and automatically center, and also lacks pulley assemblies that can accurately guide and ensure the straightness of ejection, thus failing to meet the safe demolding requirements of high-rigidity, large-size metal molds.

[0004] Chinese Patent CN121776458A discloses a variable-diameter metal mold and casting separation device. This device, by setting up an arc-shaped clamping plate, a clamping cylinder, and an ejection assembly, can clamp and eject metal molds of different diameters, solving the problem that traditional demolding equipment can only adapt to a single specification and has poor versatility. However, it still has the following shortcomings: its clamping mechanism relies on a single arc surface for clamping, and when switching to different diameter specifications, the clamping components need to be replaced or adjusted, which is cumbersome and inefficient; at the same time, its ejection guide adopts a multi-rod sliding fit, which is prone to uneven load and wear after long-term use, resulting in a decrease in ejection straightness, making it difficult to meet the high-precision and high-stability demolding requirements of large-diameter metal molds.

[0005] Therefore, how to provide a dual-station large-diameter metal mold demolding device that can adapt to two different diameter specifications, provide a stable and reliable clamping, precise guidance, and sufficient ejection force has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0006] In view of this, in order to overcome the shortcomings of the prior art, the present invention aims to provide a dual-station large-diameter metal casting mold demolding device.

[0007] This invention provides a dual-station large-diameter metal mold demolding device. The device includes a base, a support carriage, a clamping mechanism, an ejection mechanism, and a control mechanism. The support carriage is located at one end of the base, and the ejection mechanism is located at the other end of the base. The ejection mechanism includes a second hydraulic cylinder, a die head connected to the output end of the second hydraulic cylinder, and guide components and core push rods respectively connected to both ends of the die head. The guide components include a guide shaft, a support ring fixedly connected to one end of the guide shaft, and guide pulleys spaced apart on the guide shaft. The guide pulleys are in contact with the outer periphery of the cylinder body of the second hydraulic cylinder. Two sets of clamping mechanisms are symmetrically arranged on the base and located on both sides of the ejection mechanism. The clamping mechanism includes a base, a connecting rod hinged to the base, a first hydraulic cylinder, and a clamping plate hinged to the output end of the first hydraulic cylinder. Under the action of the control mechanism, the first hydraulic cylinder can drive the clamping plate to clamp or release metal molds of different diameters, and the second hydraulic cylinder can drive the die head to eject and demold the metal mold.

[0008] Optionally, in the dual-station large-diameter metal casting mold demolding device of the present invention, multiple guide shafts are arranged in a coaxial circumferential array on the outer periphery of the second hydraulic cylinder body. One end of the guide shaft is fixedly connected to the support ring, and the other end is fixedly connected to the pressing head. The guide pulley is arranged at the end where the guide shaft and the support ring are connected.

[0009] Optionally, the dual-station large-diameter metal casting mold demolding device of the present invention includes a base comprising a platform, guide rails, mounting base, mounting bracket, and support frame. Two sets of guide rails are symmetrically arranged at one end of the platform, and a limit block is provided at one end of the guide rails near the end of the platform. The support frame is arranged at the other end of the platform, the mounting base is arranged on the platform and located at the front end of the guide rails, and the mounting bracket is arranged on the platform and located between the mounting base and the support frame.

[0010] Optionally, the dual-station large-diameter metal casting mold demolding device of the present invention includes a mounting ring and a hinge seat. The mounting ring is disposed on the mounting seat and a plurality of guide sleeves are arranged in a circumferential array on the mounting ring. The hinge seat is symmetrically disposed on both sides of the upper end of the mounting seat. The hinge seat includes two sets of brackets arranged parallel to one side of the mounting seat, two sets of first rotating shafts respectively disposed on the brackets, and second rotating shafts with both ends passing through the two sets of brackets respectively.

[0011] Optionally, in the dual-station large-diameter metal casting mold demolding device of the present invention, the guide shaft passes through the guide sleeve on the mounting base, the second hydraulic cylinder passes through the mounting ring on the mounting base and one end of the second hydraulic cylinder body is fixed to one side of the mounting base by fasteners, and the other end of the second hydraulic cylinder body is set on the support frame on the base.

[0012] Optionally, in the dual-station large-diameter metal casting mold demolding device of the present invention, a second hinge bracket is provided at one end of the base, the bottom end of the first hydraulic cylinder is hinged to the second hinge bracket, and two sets of third hinge brackets are symmetrically arranged on both sides of the base, with the two sets of connecting rods respectively hinged to the third hinge brackets.

[0013] Optionally, in the dual-station large-diameter metal casting mold demolding device of the present invention, a first arc-shaped grab hook and a second arc-shaped grab hook are provided on the clamping plate, and a first hinge bracket is also provided on one side of the clamping plate, with the output end of the first hydraulic cylinder hinged to the first hinge bracket on the clamping plate.

[0014] Optionally, in the dual-station large-diameter metal casting mold demolding device of the present invention, the connecting rod is disposed in the bracket on the base and is hinged to the first rotating shaft, one end of the clamping plate is hinged to the second rotating shaft disposed in the bracket, and the base is fixedly disposed at both ends of the mounting bracket on the base.

[0015] Optionally, in the dual-station large-diameter metal casting mold demolding device of the present invention, the carriage includes a bracket, pressure plates and wheels. V-shaped grooves are symmetrically arranged at both ends of the bracket. Multiple pressure plates are respectively attached to the inclined groove walls of the V-shaped grooves, and multiple wheels are symmetrically arranged at the upper and lower ends of the bracket.

[0016] Optionally, in the dual-station large-diameter metal mold demolding device of the present invention, the wheels on the carriage are matched with the guide rails on the base.

[0017] The dual-station large-diameter metal casting mold demolding device of the present invention has the following beneficial technical effects:

[0018] 1. Strong specification compatibility

[0019] It can be adapted to metal molds with diameters of Ø960mm and Ø1050mm, allowing for production switching without changing equipment, which significantly improves the versatility of the device.

[0020] 2. Secure and reliable grip

[0021] The dual-station arc clamping mechanism clamps the metal mold end flange tightly, with uniform and stable clamping force, effectively preventing the mold from loosening or shifting during demolding.

[0022] 3. Precise and stable guidance

[0023] Three sets of guide pulleys arranged at a 120° angle guide the main cylinder along its outer circle, ensuring the straightness of the ejection mechanism's movement and precise demolding action without any wobble.

[0024] 4. Sufficient jacking force

[0025] Equipped with a custom 25MPa hydraulic cylinder, the output demolding force is greater than that of a conventional hydraulic cylinder, fully meeting the ejection requirements of large-diameter metal molds. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a structural example diagram of a dual-station large-diameter metal casting mold demolding device according to an embodiment of the present invention;

[0028] Figure 2 This is another structural example diagram of a dual-station large-diameter metal casting mold demolding device according to an embodiment of the present invention;

[0029] Figure 3 This is an example diagram of a base structure according to an embodiment of the present invention;

[0030] Figure 4 This is an example diagram of the mounting base structure according to an embodiment of the present invention;

[0031] Figure 5 This is another structural example diagram of the mounting base according to an embodiment of the present invention;

[0032] Figure 6 This is an example diagram of a bracket vehicle structure according to an embodiment of the present invention;

[0033] Figure 7 This is another structural example diagram of the bracket vehicle according to an embodiment of the present invention;

[0034] Figure 8 This is an example diagram of a clamping mechanism structure according to an embodiment of the present invention;

[0035] Figure 9 This is an example diagram of a clamping plate structure according to an embodiment of the present invention;

[0036] Figure 10 This is a partial structural example of a dual-station large-diameter metal casting mold demolding device according to an embodiment of the present invention;

[0037] Figure 11 This is an example diagram of the ejection mechanism structure according to an embodiment of the present invention;

[0038] Figure 12 This is a partial structural example of a dual-station large-diameter metal casting mold demolding device according to an embodiment of the present invention;

[0039] Figure 13 This is a partial structural example of a dual-station large-diameter metal casting mold demolding device according to an embodiment of the present invention;

[0040] In the diagram, 1-base, 2-carrier, 3-clamping mechanism, 4-ejection mechanism, 5-control mechanism, 6-metal mold, 11-platform, 12-guide rail, 13-mounting seat, 14-mounting bracket, 15-support frame, 21-carrier, 22-pressure plate, 23-wheel, 31-clamping plate, 32-first hydraulic cylinder, 33-connecting rod, 34-base, 41-second hydraulic cylinder, 42-pressure die head, 43-guide assembly, 44-core pusher Rod, 121-Limiting block, 131-Mounting ring, 132-Guide sleeve, 133-Hinge seat, 211-V-groove, 311-First hinge bracket, 312-First arc grab hook, 313-Second arc grab hook, 341-Second hinge bracket, 342-Third hinge bracket, 431-Guide shaft, 432-Support ring, 433-Guide pulley, 1331-Bracket, 1332-First rotating shaft, 1333-Second rotating shaft. Detailed Implementation

[0041] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0042] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0044] Figure 1 This is a structural example diagram of a dual-station large-diameter metal casting mold demolding device according to an embodiment of the present invention. Figure 2 This is another structural example diagram of a dual-station large-diameter metal casting mold demolding device according to an embodiment of the present invention, as shown below. Figure 1 , Figure 2As shown, in this embodiment, the dual-station large-diameter metal mold demolding device includes a base 1, a support carriage 2, a clamping mechanism 3, an ejection mechanism 4, and a control mechanism 5. The support carriage is located at one end of the base 1 to carry the metal mold 6, and the ejection mechanism 4 is located at the other end of the base 1, with the ejection mechanism 4 aligned with the axis of the metal mold 6. Two sets of clamping mechanisms 3 are symmetrically arranged on the base 1, located on both sides of the ejection mechanism 4, which can clamp the front circumference of the metal mold 6. The control mechanism 5 is connected to the clamping mechanism 3 and the ejection mechanism 4 through a pipe, and is used to control the clamping mechanism 3 to clamp and release the metal mold 6, and to control the ejection mechanism 4 to eject and demold the metal mold 6.

[0045] Figure 3 This is an example diagram of a base structure according to an embodiment of the present invention, such as... Figure 3 As shown, in this embodiment, the base 1 includes a platform 11, guide rails 12, mounting bases 13, mounting brackets 14, and support frames 15. Two sets of guide rails 12 are symmetrically arranged at one end of the platform 11, and a limiting block 121 is provided at one end of the guide rails 12 near the end of the platform 11. The support frame 15 is located at the other end of the platform 11. The mounting base 13 is located on the platform 11 at the front end of the guide rails 12. The mounting bracket 14 is located on the platform 11 between the mounting base 13 and the support frame 15.

[0046] Figure 4 This is an example diagram of the mounting base structure according to an embodiment of the present invention. Figure 5 This is another structural example diagram of the mounting base according to an embodiment of the present invention, such as... Figure 4 , Figure 5 As shown, in this embodiment, the mounting base 13 is provided with a mounting ring 131, and the mounting ring 131 is provided with a plurality of guide sleeves 132 arranged in a circumferential array. The upper end of the mounting base 13 is symmetrically provided with hinge seats 133 on both sides. The hinge seat 133 includes two sets of brackets 1331 arranged parallel to one side of the mounting base 13, two sets of first rotating shafts 1332 respectively arranged on the brackets 1331, and second rotating shafts 1333 respectively passing through the two sets of brackets 1331 at both ends.

[0047] Figure 6 This is an example diagram of a bracket vehicle structure according to an embodiment of the present invention. Figure 7 This is another structural example diagram of the bracket vehicle according to an embodiment of the present invention, such as... Figure 6 , Figure 7 As shown, in this embodiment, the bracket 2 includes a bracket 21, pressure plates 22, and wheels 23. The bracket 21 has symmetrically arranged V-shaped grooves 211 at both ends, and multiple pressure plates 22 are respectively attached to the inclined groove walls of the V-shaped grooves 211. Multiple wheels 23 are symmetrically arranged at the upper and lower ends of the bracket 21, and the wheels 23 cooperate with the guide rails 12 on the base 1. It should be noted that in practical applications, the two ends of the bracket 2 have a symmetrical structure and can be flipped for use.

[0048] Figure 8 This is an example diagram of a clamping mechanism structure according to an embodiment of the present invention. Figure 9 This is an example diagram of a clamping plate structure according to an embodiment of the present invention, such as... Figure 8 , Figure 9 As shown, in this embodiment, the clamping mechanism 3 includes a clamping plate 31, a first hydraulic cylinder 32, a connecting rod 33, and a base 34. A first hinge bracket 311 is provided on one side of the clamping plate 31, and a first arc-shaped grab hook 312 and a second arc-shaped grab hook 313 are provided on the clamping plate 31. A second hinge bracket 341 is provided at one end of the base 34. The bottom end of the first hydraulic cylinder 32 is hinged to the second hinge bracket 341, and the output end of the first hydraulic cylinder 32 is hinged to the first hinge bracket 311 on the clamping plate 31. Two sets of third hinge brackets 342 are symmetrically provided on both sides of the base 34, and two sets of connecting rods 33 are respectively hinged to the third hinge brackets 342.

[0049] It should be noted that in practical applications, the first arc hook 312 and the second arc hook 313 correspond to metal castings 6 of different specifications and sizes, respectively, and are adapted to the flange end faces of metal castings 6 with outer diameters of Ø960mm and Ø1050mm.

[0050] Figure 10 This is a partial structural example of a dual-station large-diameter metal casting mold demolding device according to an embodiment of the present invention, as shown in the figure. Figure 2 , Figure 10 As shown, in this embodiment, the symmetrical connecting rods 33 on both sides of the clamping mechanism 3 are respectively disposed within the bracket 1331 and hinged to the first rotating shaft 1332. One end of the clamping plate 31 is hinged to the second rotating shaft 1333 disposed within the two sets of brackets 1331. The base 34 is fixedly disposed at both ends of the mounting bracket 14. By extending and retracting the first hydraulic cylinder 32, the clamping plate 31 is driven to rotate around the second rotating shaft 1333, thereby realizing the clamping and releasing of the first arc hook 312 or the second arc hook 313 on the end flange of the metal casting 6.

[0051] Figure 11 This is an example diagram of the ejection mechanism structure according to an embodiment of the present invention. Figure 12 This is a partial structural example of a dual-station large-diameter metal casting mold demolding device according to an embodiment of the present invention, as shown in the figure. Figure 11 , Figure 12As shown, in this embodiment, the ejection mechanism 4 includes a second hydraulic cylinder 41, a die head 42, a guide assembly 43, and a core push rod 44. The second hydraulic cylinder 41 is located inside the guide assembly 43, and its output end is fixedly connected to the die head 42. One end of the cylinder body of the second hydraulic cylinder 41 is mounted on a support frame 15 on the base 1. One end of the core push rod 44 is fixedly connected to the die head 42. The guide assembly 43 includes a guide shaft 431, a support ring 432, and guide pulleys 433. The guide shaft 431 is arranged in a coaxial circumferential array around the cylinder body of the second hydraulic cylinder 41. One end of the guide shaft 431 is fixedly connected to the support ring 432, and the other end is fixedly connected to the die head 42. Multiple guide pulleys 433 are spaced apart at the connection end between the guide shaft 431 and the support ring 432. The guide pulleys 433 contact the outer periphery of the cylinder body of the second hydraulic cylinder 41 and can move along the axial direction of the cylinder body of the second hydraulic cylinder 41. It should be noted that in practical applications, the number of guide pulleys 433 can be adjusted according to the guide shafts 431. For example, six guide shafts 431 can be selected, and three sets of guide pulleys 433 can be set at a 120° angle at the connection ends of the six guide shafts 431 and the support ring 432. At the same time, the guide pulleys 433 guide along the outer circle of the second hydraulic cylinder 41, which can ensure the straightness of the die head 42 during the ejection process and ensure the smoothness and centering of the demolding action.

[0052] Figure 13 This is a partial structural example of a dual-station large-diameter metal casting mold demolding device according to an embodiment of the present invention, as shown in the figure. Figures 1 to 13 As shown, in this embodiment, the second hydraulic cylinder 41 passes through the mounting ring 131 on the mounting base 13, and the cylinder body of the second hydraulic cylinder 41 is fixed to one side of the mounting base 13 by fasteners. The guide shaft 431 passes through the guide sleeve 132, and the guide sleeve 132 provides stable axial guidance during the ejection process of the ejection mechanism 4.

[0053] It should be noted that in practical applications, the large-diameter metal mold 6 requires greater demolding force, and conventional standard hydraulic cylinders cannot meet the size requirements. Therefore, the first hydraulic cylinder 32 and the second hydraulic cylinder 41 are 25MPa cylinders. The base 1 adopts an all-steel plate and profile welded structure, ensuring sufficient strength and rigidity while saving production costs.

[0054] The operating principle of this device is as follows:

[0055] First, the hydraulic pump station is started via control mechanism 5, and the reversing valve handle of clamping mechanism 3 is operated to open the two sets of clamping plates 31. The metal casting 6 (Ø960mm or Ø1050mm) is lifted into the V-shaped groove 211 of the bracket trolley 2 using a crane and a special pneumatic hoist for large metal castings, and the bracket trolley 2 is pushed along guide rail 12 to the corresponding clamping position of clamping mechanism 3. The reversing valve handle of clamping mechanism 3 is operated to drive the clamping plate 31 to rotate via the first hydraulic cylinder 32, clamping the inner side of the end flange of metal casting 6 via the first arc hook 312 or the second arc hook 313. Then, the reversing valve handle of ejection mechanism 4 is operated to push the piston rod of the second hydraulic cylinder 41 outwards, driving the die head 42 to push the core push rod 44, pushing out the core and straw rope in metal casting 6 in multiple stages. The positioning core head of metal casting 6 is then removed, and the core push rod 44 is pushed out with a steel chisel. The ejector mechanism 4 is operated again, causing the pressure mold head 42 to push the casting and inner sand core to move linearly at a uniform speed. Utilizing the gap created between the casting's solidification shrinkage and the inner cavity of the metal mold 6, the vertical sand core is broken, achieving separation of the casting from the metal mold 6. After demolding one end, the ejector mechanism 4 is operated to quickly retract the piston rod, and the clamping mechanism 3 is operated to release the arc-shaped grab hook. The metal mold 6 is then turned around and re-clamped using a crane and a special pneumatic hoist. The ejection operation is repeated to complete demolding of the other end of the metal mold 6. Finally, the metal mold 6 and the casting are hoisted to designated positions to begin the next demolding cycle.

[0056] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A dual-station large-diameter metal casting mold demolding device, characterized in that, The system includes a base (1), a bracket (2), a clamping mechanism (3), an ejection mechanism (4), and a control mechanism (5). The bracket (2) and the ejection mechanism (4) are respectively located at both ends of the base (1). The ejection mechanism (4) includes a second hydraulic cylinder (41), a die head (42) connected to the output end of the second hydraulic cylinder (41), and guide components (43) and core push rods (44) respectively connected to both ends of the die head (42). The guide components (43) include a guide shaft (431), a support ring (432) fixedly connected to one end of the guide shaft (431), and guide pulleys (433) spaced apart on the guide shaft (431). The guide pulley (433) contacts the outer periphery of the cylinder body of the second hydraulic cylinder (41). Two sets of clamping mechanisms (3) are symmetrically arranged on the base (1) and located on both sides of the ejection mechanism (4). The clamping mechanism (3) includes a base (34), a connecting rod (33) hinged to the base (34), a first hydraulic cylinder (32), and a clamping plate (31) hinged to the output end of the first hydraulic cylinder (32). Under the action of the control mechanism (5), the first hydraulic cylinder (32) can drive the clamping plate (31) to clamp or release metal molds (6) of different diameters, and the second hydraulic cylinder (41) can drive the die head (42) to eject and demold the metal mold (6).

2. The dual-station large-diameter metal casting mold demolding device according to claim 1, characterized in that, Multiple guide shafts (431) are arranged in a coaxial circumferential array on the outer periphery of the cylinder body of the second hydraulic cylinder (41). One end of the guide shaft (431) is fixedly connected to the support ring (432), and the other end is fixedly connected to the die head (42). The guide pulley is arranged at the connection end between the guide shaft (431) and the support ring (432).

3. The dual-station large-diameter metal casting mold demolding device according to claim 1, characterized in that, The base (1) includes a platform (11), a guide rail (12), a mounting base (13), a mounting bracket (14), and a support frame (15). Two sets of guide rails (12) are symmetrically arranged at one end of the platform (11). A limit block (121) is provided at one end of the guide rail (12) near the end of the platform (11). The support frame (15) is arranged at the other end of the platform (11). The mounting base (13) is arranged on the platform (11) and located at the front end of the guide rail (12). The mounting bracket (14) is arranged on the platform (11) and located between the mounting base (13) and the support frame (15).

4. The dual-station large-diameter metal casting mold demolding device according to claim 3, characterized in that, The mounting base (13) includes a mounting ring (131) and a hinge seat (133). The mounting ring (131) is disposed on the mounting base (13). The mounting ring (131) is arranged with a plurality of guide sleeves (132) in a circumferential array. The hinge seat (133) is symmetrically disposed on both sides of the upper end of the mounting base (13). The hinge seat (133) includes two sets of brackets (1331) arranged parallel to one side of the mounting base (13), two sets of first rotating shafts (1332) respectively disposed on the brackets (1331), and second rotating shafts (1333) respectively passing through the two sets of brackets (1331) at both ends.

5. The dual-station large-diameter metal casting mold demolding device according to claim 1, characterized in that, The guide shaft (431) passes through the guide sleeve (132) on the mounting base (13), the second hydraulic cylinder (41) passes through the mounting ring (131) on the mounting base (13), and one end of the cylinder body of the second hydraulic cylinder (41) is fixed to one side of the mounting base (13) by fasteners, and the other end of the cylinder body of the second hydraulic cylinder (41) is set on the support frame (15) on the base (1).

6. The dual-station large-diameter metal casting mold demolding device according to claim 1, characterized in that, The base (34) is provided with a second hinge bracket (341) at one end, and the bottom end of the first hydraulic cylinder (32) is hinged to the second hinge bracket (341). Two sets of third hinge brackets (342) are symmetrically arranged on both sides of the base (34), and two sets of connecting rods (33) are respectively hinged to the third hinge brackets (342).

7. The dual-station large-diameter metal casting mold demolding device according to claim 1, characterized in that, The clamping plate (31) is provided with a first arc hook (312) and a second arc hook (313). A first hinge bracket (311) is also provided on one side of the clamping plate (31). The output end of the first hydraulic cylinder (32) is hinged to the first hinge bracket (311) on the clamping plate (31).

8. The dual-station large-diameter metal casting mold demolding device according to claim 1, characterized in that, The connecting rod (33) is set in the bracket (1331) on the base (1) and is hinged to the first rotating shaft (1332). One end of the clamping plate (31) is hinged to the second rotating shaft (1333) set in the bracket (1331). The base (34) is fixedly set at both ends of the mounting bracket (14) on the base (1).

9. The dual-station large-diameter metal casting mold demolding device according to claim 1, characterized in that, The bracket vehicle (2) includes a bracket (21), pressure plates (22) and wheels (23). V-shaped grooves (211) are symmetrically arranged at both ends of the bracket (21). Multiple pressure plates (22) are respectively attached to the inclined groove wall of the V-shaped groove (211). Multiple wheels (23) are symmetrically arranged at the upper and lower ends of the bracket (21).

10. The dual-station large-diameter metal casting mold demolding device according to claim 9, characterized in that, The wheels (23) on the bracket (2) are matched with the guide rails (12) on the base (1).

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