Insulator iron cap gradient alloy composite casting mold and casting method

Abstract

The invention relates to the technical field of casting equipment, in particular to an insulator iron cap gradient alloy composite casting mold which comprises a bottom plate, two positioning rods are fixedly connected to the top of the bottom plate, and an upper mold frame box and a lower mold frame box are arranged on the two positioning rods in a sliding and sleeving mode. The two positioning rods are fixedly sleeved with a positioning plate, and an air cooler is fixedly installed at the top of the bottom plate. According to the gradient alloy composite casting mold for the insulator iron cap, separation and sealing of the multiple sealing rods and injection holes of the upper mold frame box are automatically achieved in the whole process through a mechanical transmission system, the rejection rate increase caused by untight plugging is avoided, and meanwhile when liquid metal of the insulator iron cap is injected, the sealing effect is good. The sealing plate and the multiple sealing rods do not hinder the metal injection process, and in the insulator iron cap forming process, the multiple sealing rods ensure that the injection hole of the upper mold frame box is sealed, air is prevented from being involved in, the porosity is reduced, and the casting quality of the insulator iron cap is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of casting equipment, and in particular relates to a gradient alloy composite casting mold for an insulator iron cap and a casting method. Background Art

[0002] The insulator cap is a crucial metal accessory for power line insulators, typically made from high-strength cast iron or aluminum alloy, with a surface treated with hot-dip galvanizing or spray coating for corrosion protection. Its structure is umbrella- or bell-shaped, with the upper portion tightly glued to the insulator's porcelain or glass components and the lower portion connected to the tower's crossarm via threads or a ball joint. Designed with water guide grooves and aerodynamic edges, the cap combines mechanical load-bearing and rainproofing functions, requiring it to withstand tens of kilonewtons of tensile loads and severe weather conditions. As the stress-transfer core of the insulator string, its internal glue structure utilizes a special cement with a matching expansion coefficient to ensure a permanent, high-strength bond with the insulator, making it a critical component for the safe operation of overhead transmission lines.

[0003] As a key component of insulators, the casting quality of insulator caps directly impacts their mechanical strength, corrosion resistance, and long-term reliability. Currently, in traditional sand casting, manual sealing of the injection holes can lead to molten metal leakage and oxidation, resulting in defects such as porosity and slag inclusions, leading to high scrap rates. Demolding relies on manual labor, which is inefficient and prone to damage to the casting. Uneven natural cooling also leads to residual stress and deformation. Summary of the Invention

[0004] The purpose of the present invention is to fully automate the separation and sealing of multiple sealing rods and the injection holes of the upper mold frame box through a mechanical transmission system, reduce human operation errors, avoid the increase in scrap rate due to loose sealing, and at the same time achieve efficient and automatic demolding of the insulator iron caps, thereby improving production efficiency. After demolding, the multiple push rods drive the multiple insulator iron caps to rotate at a uniform speed, and cooperate with air supply to achieve dead-angle cooling of the casting surface, thereby improving the cooling efficiency of the insulator iron caps and avoiding local overheating or uneven cooling.

[0005] The technical solution adopted by the present invention is as follows: a gradient alloy composite casting mold for an insulator cap, comprising:

[0006] The bottom plate has two positioning rods fixedly connected to the top of the bottom plate, the upper mold frame box and the lower mold frame box are slidingly sleeved on the two positioning rods, the positioning plates are fixedly sleeved on the two positioning rods, and the top of the bottom plate is fixedly installed with a cooling fan;

[0007] A controllable injection hole sealing mechanism, wherein the controllable injection hole sealing mechanism is fixedly mounted on the upper mold frame box;

[0008] an ejection control assembly, the ejection control assembly being disposed on top of the base plate; and

[0009] A uniform cooling mechanism is provided on the ejection control assembly.

[0010] wherein the controllable injection hole sealing mechanism includes a U-shaped plate, a lifting control box, a shifting control box, a sealing plate, a lifting threaded rod, a lifting transmission block, multiple sealing rods, a driven gear, a shifting threaded rod, two connecting rods and a compound tooth plate, the U-shaped plate is fixedly connected to the outer surface of one side of the upper mold frame box, the lifting control box is fixedly connected to the outer surface of one side of the U-shaped plate, the lifting threaded rod is rotatably connected between the upper and lower inner walls of the lifting control box, the lifting transmission block is threadedly connected to the lifting threaded rod, two connecting rods are fixedly connected to the outer surface of one side of the lifting transmission block, the shifting control box is fixedly connected to one end of the two connecting rods, the driven gear is rotatably connected between the upper and lower inner walls of the shifting control box, the sealing plate is rotatably connected to the bottom of the shifting control box, and the sealing plate is fixedly connected to the driven gear through a transmission shaft, multiple sealing rods are fixedly connected to the bottom of the sealing plate, the shifting threaded rod is rotatably connected to the inner walls of both sides of the shifting control box, the compound tooth plate is threadedly connected to the shifting threaded rod, and the compound tooth plate is meshed with the driven gear.

[0011] The controllable injection hole sealing mechanism further comprises a lifting motor, which is fixedly mounted on the bottom of the lifting control box, and the output end of the lifting motor is fixedly connected to the lifting threaded rod.

[0012] The controllable injection hole sealing mechanism further comprises two lifting limit rods, which are fixedly connected between the upper and lower inner walls of the lifting control box, and the lifting transmission block is slidably sleeved on the two lifting limit rods.

[0013] Wherein, the controllable injection hole sealing mechanism further includes a shifting motor, and the output end of the shifting motor is fixedly connected to the shifting threaded rod.

[0014] Wherein, the controllable injection hole sealing mechanism further includes two shifting limit rods, and the composite tooth plate is slidably sleeved on the two shifting limit rods.

[0015] Among them, the top of the base plate is fixedly connected to a mounting plate, and two hydraulic rods are fixedly installed on the outer surface of one side of the mounting plate. The output ends of the two hydraulic rods are fixedly connected to L-shaped fixing rods, and the upper ends of the two L-shaped fixing rods are fixedly connected to docking support blocks, and the docking support blocks are slidably embedded in the interior of the docking support frame.

[0016] Wherein, the ejection control assembly includes an ejection control box, an ejection threaded rod, an ejection transmission plate, two ejection transmission rods, an ejection motor and two ejection limit rods, the ejection control box is fixedly connected to the top of the base plate, the ejection threaded rod is rotatably connected between the ejection control box and the base plate, the two ejection limit rods are fixedly connected between the ejection control box and the base plate, the ejection transmission plate is slidably sleeved on the two ejection limit rods, and the ejection transmission plate is threadedly connected to the ejection threaded rods, the two ejection transmission rods are fixedly connected to the top of the ejection transmission plate, and the upper ends of the two ejection transmission rods extend to the upper side of the ejection control box, the ejection motor is fixedly installed at the bottom of the base plate, and the output end of the ejection motor is fixedly connected to the ejection threaded rod.

[0017] Among them, the uniform cooling mechanism includes a synchronous control box, four groups of ejector rods, four groups of first transmission gears, a bottom connection box, four drive motors and a drive motor. The synchronous control box is fixedly connected to the upper ends of the two ejection transmission rods, each group of the ejector rods is provided with five, and the four groups of the ejector rods are rotatably connected to the top of the synchronous control box, each group of the first transmission gears is provided with five, and each group of five first transmission gears is rotatably connected between the upper and lower inner walls of the synchronous control box, each first transmission gear is fixedly connected to the corresponding ejector rod, the bottom connection box is fixedly connected to the bottom of the synchronous control box, the four second transmission gears are rotatably connected between the bottom connection box and the synchronous control box, each second transmission gear is fixedly connected to the corresponding first transmission gear, the drive motor is fixedly installed at the bottom of the bottom connection box, and the output end of the drive motor is fixedly connected to one of the second transmission gears.

[0018] A method for using a gradient alloy composite casting mold for an insulator cap comprises the following steps:

[0019] Step 1: Upper and lower mold closing: After the upper and lower sand molds of the insulator iron cap are respectively embedded in the interior of the upper mold frame box and the lower mold frame box, the lower mold frame box is put on the two positioning rods to make the lower mold frame box fit with the positioning plate. Then, by starting the two hydraulic rods to drive the L-shaped fixing rods to move, the docking support block is embedded in the interior of the docking support frame, thereby stably fixing the lower mold frame box. Then, the upper mold frame box is put on the two positioning rods to make the upper mold frame box fit with the lower mold frame box.

[0020] Step 2: molten iron casting: after the upper mold frame box and the lower mold frame box are molded together, the lifting motor is controlled to start, driving the lifting threaded rod to rotate, and the lifting transmission block drives the shifting control box to rise through two connecting rods, so that the sealing plate drives multiple sealing rods to disengage from the injection holes on the upper mold frame box, and then the shifting motor is controlled to start, driving the shifting threaded rod to rotate, so that the composite tooth plate drives the driven gear to rotate, driving the sealing plate to move away from the upper side of the upper mold frame box, thereby injecting multiple liquid metals into the sand mold cavity between the upper mold frame box and the lower mold frame box in sequence through the injection holes on the top of the upper mold frame box to achieve gradient alloy composite. After the injection is completed, the shifting motor is controlled to reverse, and the sealing plate is finally returned to the upper side of the upper mold frame box. The lifting motor is controlled to reverse, and the sealing plate finally drives multiple sealing rods to insert into the multiple injection holes on the upper mold frame box;

[0021] Step 3: Open the mold and air cool: After the insulator iron cap is formed, the upper mold frame box is removed from the two positioning rods, and the ejection motor is controlled to start, driving the ejection threaded rod to rotate, so that the ejection transmission plate drives the two ejection transmission rods to rise, so that the synchronous control box drives multiple ejector rods to eject the insulator iron cap from the sand mold of the lower mold frame box, and each insulator iron cap is inserted and supported by each ejector rod. Then start the air cooler to send cold air toward the upper side of the lower mold frame box, and at the same time start the drive motor to drive the four second transmission gears to rotate synchronously, and each second transmission gear drives the corresponding first transmission gear to rotate, so that the four groups of first transmission gears keep rotating synchronously, so that multiple ejector rods drive multiple insulator iron caps to keep rotating stably under the wind of the air cooler.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] (1) In the present invention, after the upper mold frame box and the lower mold frame box are molded together, the lifting motor is controlled to start, driving the lifting threaded rod to rotate, and the lifting transmission block drives the shifting control box to rise through two connecting rods, so that the sealing plate drives multiple sealing rods to disengage from the injection hole on the upper mold frame box, and then the shifting motor is controlled to start, driving the shifting threaded rod to rotate, so that the composite tooth plate drives the driven gear to rotate, and drives the sealing plate to move away from the upper side of the upper mold frame box, thereby injecting multiple liquid metals into the sand mold cavity between the upper mold frame box and the lower mold frame box in sequence through the injection hole on the top of the upper mold frame box. After the injection is completed, the shifting motor is controlled to reverse, and finally the sealing plate is moved away from the upper mold frame box. The sealing plate returns to the upper side of the upper mold frame box, and by controlling the reverse rotation of the lifting motor, the sealing plate finally drives multiple sealing rods to insert into multiple injection holes on the upper mold frame box. Through the mechanical transmission system, the separation and sealing of multiple sealing rods and the injection holes of the upper mold frame box are fully automated, reducing human operation errors and avoiding the increase in scrap rate due to lax sealing. At the same time, when the liquid metal of the insulator iron cap is injected, the sealing plate and multiple sealing rods will not hinder the metal injection process. During the molding process of the insulator iron cap, multiple sealing rods ensure that the injection holes of the upper mold frame box are sealed, preventing air from being drawn in, reducing porosity, and improving the casting quality of the insulator iron cap.

[0024] (2) In the present invention, after the insulator iron cap is formed, the upper mold frame box is removed from the two positioning rods, and the ejection motor is controlled to start, driving the ejection threaded rod to rotate, so that the ejection transmission plate drives the two ejection transmission rods to rise, so that the synchronous control box drives multiple ejector rods to eject the insulator iron cap from the sand mold of the lower mold frame box, and each insulator iron cap is inserted and supported by each ejector rod, and then the cold air blower is started to send cold air to the upper side of the lower mold frame box, and at the same time, the drive motor is started to drive the four second transmission gears to rotate synchronously, and each second transmission gear drives the corresponding first transmission gear to rotate, so that the four groups of first transmission gears all keep rotating synchronously, so that the multiple ejector rods drive the multiple insulator iron caps to keep rotating stably under the wind of the cold air blower, realizing efficient and automatic demoulding of the insulator iron caps and improving production efficiency. After demoulding, the multiple ejector rods drive the multiple insulator iron caps to rotate at a uniform speed, and cooperate with the air supply to realize cooling of the casting surface without dead angles, while improving the cooling efficiency of the insulator iron caps and avoiding local overheating or uneven cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A perspective view of the present invention;

[0026] Figure 2 It is a partial structural perspective diagram of the upper mold frame box of the present invention;

[0027] Figure 3 It is a cross-sectional view of the lifting control box of the present invention;

[0028] Figure 4 This is an exploded view of the upper mold frame box portion of the present invention;

[0029] Figure 5 It is a cross-sectional view of the shifting control box of the present invention;

[0030] Figure 6 This is an exploded view of the upper structure of the bottom plate of the present invention;

[0031] Figure 7 It is a bottom view of the lower mold frame box of the present invention;

[0032] Figure 8 It is a cross-sectional view of the ejection control box of the present invention;

[0033] Figure 9 It is a cross-sectional view of the synchronous control box of the present invention;

[0034] Figure 10 This is an exploded view of the uniform cooling mechanism of the present invention.

[0035] Markings in the figure: 1, bottom plate; 2, positioning rod; 3, upper mold frame box; 4, lower mold frame box; 5, controllable injection hole sealing mechanism; 501, U-shaped plate; 502, lifting control box; 503, shifting control box; 504, sealing plate; 505, lifting threaded rod; 506, lifting transmission block; 507, lifting motor; 508, lifting limit rod; 509, sealing rod; 510, shifting motor; 511, driven gear; 512, shifting threaded rod; 513, connecting rod; 514, compound tooth plate; 515, shifting Position limiting rod; 6. Uniform cooling mechanism; 601. Synchronous control box; 602. Ejector rod; 603. First transmission gear; 604. Bottom connection box; 605. Second transmission gear; 606. Drive motor; 7. Ejector control box; 8. Mounting plate; 9. Hydraulic rod; 10. Positioning plate; 11. Docking support frame; 12. Air cooler; 13. L-shaped fixing rod; 14. Docking support block; 15. Ejector threaded rod; 16. Ejector transmission plate; 17. Ejector transmission rod; 18. Ejector motor; 19. Ejector limit rod. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0037] Example 1, refer to Figure 1-10 : An insulator iron cap gradient alloy composite casting mold, comprising:

[0038] The bottom plate 1 has two positioning rods 2 fixedly connected to the top of the bottom plate 1. The upper mold frame box 3 and the lower mold frame box 4 are slidingly sleeved on the two positioning rods 2. The positioning plates 10 are fixedly sleeved on the two positioning rods 2. A cooling fan 12 is fixedly installed on the top of the bottom plate 1.

[0039] A controllable injection hole sealing mechanism 5 is fixedly mounted on the upper mold frame box 3;

[0040] An ejection control assembly, which is disposed on the top of the base plate 1; and

[0041] The uniform cooling mechanism 6 is provided on the ejection control assembly.

[0042] In this embodiment, the two positioning rods 2 are used for positioning the upper mold frame box 3 and the lower mold frame box 4 when the mold is closed, and the positioning plate 10 is used for positioning the lower mold frame box 4 when the mold is closed. After the lower mold frame box 4 is fitted with the positioning plate 10, after the upper mold frame box 3 and the lower mold frame box 4 are closed, the opening and sealing of the injection hole of the upper mold frame box 3 are fully automated through the controllable injection hole sealing mechanism 5, reducing human operation errors and avoiding the increase in the scrap rate caused by lax sealing. At the same time, when the liquid metal of the insulator iron cap is injected, the controllable injection hole sealing mechanism 5 will not hinder the metal injection process. During the forming process of the insulator iron cap, the controllable injection hole sealing mechanism 5 ensures the sealing of the injection hole of the upper mold frame box 3, prevents air from being drawn in, reduces the porosity, and improves the casting quality of the insulator iron cap. The ejection control component and the uniform cooling mechanism 6 cooperate with each other. After the insulator iron cap is formed, the efficient and automatic demolding of the insulator iron cap is realized, thereby improving production efficiency. After demolding, the uniform cooling mechanism 6 drives multiple insulator iron caps to rotate at a uniform speed, and cooperates with air supply to achieve dead-angle cooling of the casting surface, thereby improving the cooling efficiency of the insulator iron cap and avoiding local overheating or uneven cooling.

[0043] Specifically, the controllable injection hole sealing mechanism 5 includes a U-shaped plate 501, a lifting control box 502, a shifting control box 503, a sealing plate 504, a lifting threaded rod 505, a lifting transmission block 506, a plurality of sealing rods 509, a driven gear 511, a shifting threaded rod 512, two connecting rods 513 and a composite tooth plate 514. The U-shaped plate 501 is fixedly connected to the outer surface of one side of the upper mold frame box 3, the lifting control box 502 is fixedly connected to the outer surface of one side of the U-shaped plate 501, the lifting threaded rod 505 is rotatably connected between the upper and lower inner walls of the lifting control box 502, the lifting transmission block 506 is threadedly connected to the lifting threaded rod 505, and the two connecting rods 513 are connected to the upper and lower inner walls of the lifting control box 502. It is fixedly connected to the outer surface of one side of the lifting transmission block 506, the shifting control box 503 is fixedly connected to one end of the two connecting rods 513, the driven gear 511 is rotatably connected between the upper and lower inner walls of the shifting control box 503, the sealing plate 504 is rotatably connected to the bottom of the shifting control box 503, and the sealing plate 504 is fixedly connected to the driven gear 511 through the transmission shaft, and multiple sealing rods 509 are all fixedly connected to the bottom of the sealing plate 504, the shifting threaded rod 512 is rotatably connected to the inner walls on both sides of the shifting control box 503, the compound tooth plate 514 is threadedly connected to the shifting threaded rod 512, and the compound tooth plate 514 is meshed with the driven gear 511.

[0044] In this embodiment: after the upper mold frame box 3 and the lower mold frame box 4 are molded together, the lifting threaded rod 505 is controlled to rotate, and the lifting transmission block 506 drives the shifting control box 503 to rise through the two connecting rods 513, so that the sealing plate 504 drives multiple sealing rods 509 to disengage from the injection hole on the upper mold frame box 3, and then the shifting threaded rod 512 is controlled to rotate, so that the composite tooth plate 514 drives the driven gear 511 to rotate, driving the sealing plate 504 to move away from the upper side of the upper mold frame box 3, thereby injecting multiple liquid metals into the sand mold cavity between the upper mold frame box 3 and the lower mold frame box 4 in sequence through the injection hole at the top of the upper mold frame box 3. After the injection is completed, the shifting threaded rod 512 is controlled to reverse, and finally the sealing plate 504 returns to the upper side of the upper mold frame box 3, and by controlling the reversal of the lifting threaded rod 505, the sealing plate 504 finally drives the multiple sealing rods 509 to insert into the multiple injection holes on the upper mold frame box 3. Through the mechanical transmission system, the separation and sealing of the multiple sealing rods 509 and the injection holes of the upper mold frame box 3 are fully automated, reducing human operation errors and avoiding the increase in scrap rate due to lax sealing. At the same time, when the liquid metal of the insulator iron cap is injected, the sealing plate 504 and the multiple sealing rods 509 will not hinder the metal injection process. During the molding process of the insulator iron cap, the multiple sealing rods 509 ensure that the injection holes of the upper mold frame box 3 are sealed, prevent air from being drawn in, reduce porosity, and improve the casting quality of the insulator iron cap.

[0045] Specifically, the controllable injection hole sealing mechanism 5 further includes a lifting motor 507 . The lifting motor 507 is fixedly installed at the bottom of the lifting control box 502 . The output end of the lifting motor 507 is fixedly connected to the lifting threaded rod 505 .

[0046] In this embodiment, the lifting motor 507 is controlled to start, thereby driving the lifting threaded rod 505 to rotate.

[0047] Specifically, the controllable injection hole sealing mechanism 5 further includes two lifting limit rods 508 , which are fixedly connected between the upper and lower inner walls of the lifting control box 502 , and the lifting transmission block 506 is slidably sleeved on the two lifting limit rods 508 .

[0048] In this embodiment, the two lifting limit rods 508 enable the lifting transmission block 506 to remain stable during the lifting process.

[0049] Specifically, the controllable injection hole sealing mechanism 5 further includes a shifting motor 510 , and an output end of the shifting motor 510 is fixedly connected to a shifting threaded rod 512 .

[0050] In this embodiment, the threaded rod 512 is controlled to start, thereby driving the threaded rod 512 to rotate.

[0051] Specifically, the controllable injection hole sealing mechanism 5 further includes two shifting limit rods 515 , and the composite tooth plate 514 is slidably sleeved on the two shifting limit rods 515 .

[0052] In this embodiment, the two shifting limit rods 515 enable the composite tooth plate 514 to remain stable during the movement.

[0053] Specifically, the top of the base plate 1 is fixedly connected to a mounting plate 8, and two hydraulic rods 9 are fixedly installed on the outer surface of one side of the mounting plate 8. The output ends of the two hydraulic rods 9 are fixedly connected to L-shaped fixing rods 13, and the upper ends of the two L-shaped fixing rods 13 are fixedly connected to docking support blocks 14, which are slidably embedded in the interior of the docking support frame 11.

[0054] In this embodiment, when the lower mold frame box 4 is fitted with the positioning plate 10 , the two hydraulic rods 9 are controlled to start, so that the two L-shaped fixing rods 13 drive the docking support blocks 14 to insert into the docking support frame 11 to fix the lower mold frame box 4 .

[0055] Specifically, the ejection control assembly includes an ejection control box 7, an ejection threaded rod 15, an ejection transmission plate 16, two ejection transmission rods 17, an ejection motor 18 and two ejection limit rods 19. The ejection control box 7 is fixedly connected to the top of the base plate 1, the ejection threaded rod 15 is rotatably connected between the ejection control box 7 and the base plate 1, the two ejection limit rods 19 are fixedly connected between the ejection control box 7 and the base plate 1, the ejection transmission plate 16 is slidably sleeved on the two ejection limit rods 19, and the ejection transmission plate 16 is threadedly connected to the ejection threaded rod 15, the two ejection transmission rods 17 are both fixedly connected to the top of the ejection transmission plate 16, and the upper ends of the two ejection transmission rods 17 extend to the upper side of the ejection control box 7, the ejection motor 18 is fixedly installed at the bottom of the base plate 1, and the output end of the ejection motor 18 is fixedly connected to the ejection threaded rod 15.

[0056] In this embodiment, the ejection motor 18 is controlled to start, driving the ejection threaded rod 15 to rotate, driving the ejection transmission plate 16 to rise, and the synchronous control box 601 is driven to rise through the two ejection transmission rods 17. The two ejection limit rods 19 ensure that the ejection transmission plate 16 remains stable during the up and down movement.

[0057] Specifically, the uniform cooling mechanism 6 includes a synchronous control box 601, four groups of ejector rods 602, four groups of first transmission gears 603, a bottom connection box 604, four drive motors 606 and a drive motor 606. The synchronous control box 601 is fixedly connected to the upper ends of the two ejector transmission rods 17, and each group of ejector rods 602 is provided with five. The four groups of ejector rods 602 are all rotatably connected to the top of the synchronous control box 601. Each group of first transmission gears 603 is provided with five, and each group of five first transmission gears 603 are rotatably connected to the synchronous control box 6 01, each first transmission gear 603 is fixedly connected to the corresponding top rod 602, the bottom connection box 604 is fixedly connected to the bottom of the synchronous control box 601, and the four second transmission gears 605 are rotatably connected between the bottom connection box 604 and the synchronous control box 601, and each second transmission gear 605 is fixedly connected to the corresponding first transmission gear 603, and the drive motor 606 is fixedly installed at the bottom of the bottom connection box 604, and the output end of the drive motor 606 is fixedly connected to one of the second transmission gears 605.

[0058] In this embodiment: after the insulator caps are formed, the upper mold frame box 3 is removed from the two positioning rods 2, and the two ejection transmission rods 17 drive the synchronous control box 601 to rise, so that the synchronous control box 601 drives multiple ejector rods 602 to eject the insulator caps from the sand mold of the lower mold frame box 4, and each insulator cap is inserted and supported by each ejector rod 602, and then the cooling fan 12 is started to send cold air to the upper side of the lower mold frame box 4, and at the same time, the driving motor 606 is started to drive the four second transmission gears 605 to rotate synchronously. Each second transmission gear 605 drives the corresponding first transmission gear 603 to rotate, so that the four groups of first transmission gears 603 all maintain synchronous rotation, so that the multiple push rods 602 drive the multiple insulator iron caps to maintain stable rotation under the wind of the cooling fan 12, thereby realizing efficient and automatic demolding of the insulator iron caps and improving production efficiency. After demolding, the multiple push rods 602 drive the multiple insulator iron caps to rotate at a uniform speed, and cooperate with the air supply to achieve dead-angle cooling of the casting surface, thereby improving the cooling efficiency of the insulator iron caps and avoiding local overheating or uneven cooling.

[0059] A casting method for an insulator cap gradient alloy composite casting mold comprises the following steps:

[0060] S1. Upper and lower mold closing: After the upper and lower sand molds of the insulator iron cap are respectively embedded in the upper mold frame box 3 and the lower mold frame box 4, the lower mold frame box 4 is placed on the two positioning rods 2 so that the lower mold frame box 4 is in contact with the positioning plate 10. Then, the two hydraulic rods 9 are activated to drive the L-shaped fixing rods 13 to move so that the docking support blocks 14 are embedded in the docking support frame 11, thereby stably fixing the lower mold frame box 4. The upper mold frame box 3 is then placed on the two positioning rods 2 so that the upper mold frame box 3 is in contact with the lower mold frame box 4.

[0061] S2, molten iron casting: After the upper mold frame box 3 and the lower mold frame box 4 are molded together, the lifting motor 507 is controlled to start, driving the lifting threaded rod 505 to rotate, and the lifting transmission block 506 drives the shifting control box 503 to rise through the two connecting rods 513, so that the sealing plate 504 drives multiple sealing rods 509 to disengage from the injection hole on the upper mold frame box 3, and then the shifting motor 510 is controlled to start, driving the shifting threaded rod 512 to rotate, so that the composite tooth plate 514 drives the driven gear 511 to rotate, driving the sealing plate 504 to move away from the upper side of the upper mold frame box 3, thereby injecting multiple liquid metals into the sand mold cavity between the upper mold frame box 3 and the lower mold frame box 4 in sequence through the injection hole at the top of the upper mold frame box 3. After the injection is completed, the shifting motor 510 is controlled to reverse, and finally the sealing plate 504 returns to the upper side of the upper mold frame box 3, and the lifting motor 507 is controlled to reverse, and finally the sealing plate 504 drives multiple sealing rods 509 to insert into the multiple injection holes on the upper mold frame box 3;

[0062] S3. Mold opening and air cooling: After the insulator iron cap is formed, the upper mold frame box 3 is removed from the two positioning rods 2, and the ejection motor 18 is controlled to start, driving the ejection threaded rod 15 to rotate, so that the ejection transmission plate 16 drives the two ejection transmission rods 17 to rise, so that the synchronous control box 601 drives multiple ejector rods 602 to eject the insulator iron cap from the sand mold of the lower mold frame box 4, and each insulator iron cap is inserted and supported by each ejector rod 602, and then the air cooler 12 is started to send cold air toward the upper side of the lower mold frame box 4, and at the same time, the drive motor 606 is started to drive the four second transmission gears 605 to rotate synchronously, and each second transmission gear 605 drives the corresponding first transmission gear 603 to rotate, so that the four groups of first transmission gears 603 all keep rotating synchronously, so that the multiple ejector rods 602 drive the multiple insulator iron caps to keep rotating stably under the wind of the air cooler 12.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gradient alloy composite casting mold for an insulator cap, characterized in that: include: A bottom plate (1), the top of the bottom plate (1) is fixedly connected to two positioning rods (2), the upper mold frame box (3) and the lower mold frame box (4) are slidingly sleeved on the two positioning rods (2), the upper fixed sleeves of the two positioning rods (2) are provided with positioning plates (10), and the top of the bottom plate (1) is fixedly installed with a cooling fan (12); A controllable injection hole sealing mechanism (5), wherein the controllable injection hole sealing mechanism (5) is fixedly mounted on the upper mold frame box (3); An ejection control assembly, the ejection control assembly being arranged on the top of the base plate (1); as well as A uniform cooling mechanism (6) is provided on the ejection control component.

2. The gradient alloy composite casting mold for an insulator cap according to claim 1, characterized in that: The controllable injection hole sealing mechanism (5) comprises a U-shaped plate (501), a lifting control box (502), a shifting control box (503), a sealing plate (504), a lifting threaded rod (505), a lifting transmission block (506), a plurality of sealing rods (509), a driven gear (511), a shifting threaded rod (512), two connecting rods (513) and a composite tooth plate (514), wherein the U-shaped plate (501) is fixedly connected to the outer surface of one side of the upper mold frame box (3), the lifting control box (502) is fixedly connected to the outer surface of one side of the U-shaped plate (501), the lifting threaded rod (505) is rotatably connected between the upper and lower inner walls of the lifting control box (502), the lifting transmission block (506) is threadedly connected to the lifting threaded rod (505), and the two connecting rods (513) are connected to the upper and lower inner walls of the lifting control box (502). 3) fixedly connected to the outer surface of one side of the lifting transmission block (506), the shifting control box (503) is fixedly connected to one end of two connecting rods (513), the driven gear (511) is rotatably connected between the upper and lower inner walls of the shifting control box (503), the sealing plate (504) is rotatably connected to the bottom of the shifting control box (503), and the sealing plate (504) is fixedly connected to the driven gear (511) through a transmission shaft, and multiple sealing rods (509) are fixedly connected to the bottom of the sealing plate (504), the shifting threaded rod (512) is rotatably connected to the inner walls on both sides of the shifting control box (503), the composite tooth plate (514) is threadedly connected to the shifting threaded rod (512), and the composite tooth plate (514) is meshed with the driven gear (511).

3. The gradient alloy composite casting mold for an insulator cap according to claim 2, characterized in that: The controllable injection hole sealing mechanism (5) further comprises a lifting motor (507), wherein the lifting motor (507) is fixedly mounted on the bottom of the lifting control box (502), and the output end of the lifting motor (507) is fixedly connected to the lifting threaded rod (505).

4. The gradient alloy composite casting mold for an insulator cap according to claim 2, characterized in that: The controllable injection hole sealing mechanism (5) further comprises two lifting limit rods (508), wherein the two lifting limit rods (508) are fixedly connected between the upper and lower inner walls of the lifting control box (502), and the lifting transmission block (506) is slidably sleeved on the two lifting limit rods (508).

5. The gradient alloy composite casting mold for an insulator cap according to claim 2, characterized in that: The controllable injection hole sealing mechanism (5) further comprises a shifting motor (510), and the output end of the shifting motor (510) is fixedly connected to the shifting threaded rod (512).

6. The gradient alloy composite casting mold for an insulator cap according to claim 2, characterized in that: The controllable injection hole sealing mechanism (5) further comprises two shifting limit rods (515), and the composite tooth plate (514) is slidably sleeved on the two shifting limit rods (515).

7. The gradient alloy composite casting mold for an insulator cap according to claim 1, characterized in that: The top of the base plate (1) is fixedly connected to a mounting plate (8), and two hydraulic rods (9) are fixedly mounted on the outer surface of one side of the mounting plate (8). The output ends of the two hydraulic rods (9) are fixedly connected to L-shaped fixing rods (13), and the upper ends of the two L-shaped fixing rods (13) are fixedly connected to docking support blocks (14), and the docking support blocks (14) are slidably embedded in the interior of the docking support frame (11).

8. The gradient alloy composite casting mold for an insulator cap according to claim 1, characterized in that: The ejection control assembly comprises an ejection control box (7), an ejection threaded rod (15), an ejection transmission plate (16), two ejection transmission rods (17), an ejection motor (18) and two ejection limiting rods (19), wherein the ejection control box (7) is fixedly connected to the top of the base plate (1), the ejection threaded rod (15) is rotatably connected between the ejection control box (7) and the base plate (1), the two ejection limiting rods (19) are fixedly connected between the ejection control box (7) and the base plate (1), and the ejection control box (7) is fixedly connected to the base plate (1). The ejection transmission plate (16) is slidably sleeved on the two ejection limit rods (19), and the ejection transmission plate (16) is threadedly connected to the ejection threaded rod (15). The two ejection transmission rods (17) are fixedly connected to the top of the ejection transmission plate (16), and the upper ends of the two ejection transmission rods (17) extend to the upper side of the ejection control box (7). The ejection motor (18) is fixedly installed on the bottom of the base plate (1), and the output end of the ejection motor (18) is fixedly connected to the ejection threaded rod (15).

9. The gradient alloy composite casting mold for an insulator cap according to claim 1, characterized in that: The uniform cooling mechanism (6) comprises a synchronous control box (601), four groups of ejector rods (602), four groups of first transmission gears (603), a bottom connection box (604), four drive motors (606) and a drive motor (606), wherein the synchronous control box (601) is fixedly connected to the upper ends of the two ejector transmission rods (17), each group of the ejector rods (602) is provided with five, and the four groups of the ejector rods (602) are all rotatably connected to the top of the synchronous control box (601), each group of the first transmission gears (603) is provided with five, and each group of the five first transmission gears (603) are all rotatably connected to the synchronous control box (6 01), each of the first transmission gears (603) is fixedly connected to the corresponding push rod (602), the bottom connection box (604) is fixedly connected to the bottom of the synchronous control box (601), the four second transmission gears (605) are rotatably connected between the bottom connection box (604) and the synchronous control box (601), each of the second transmission gears (605) is fixedly connected to the corresponding first transmission gear (603), the driving motor (606) is fixedly installed at the bottom of the bottom connection box (604), and the output end of the driving motor (606) is fixedly connected to one of the second transmission gears (605).

10. A casting method for an insulator cap gradient alloy composite casting mold, characterized in that: The gradient alloy composite casting mold for an insulator cap as claimed in any one of claim 9 comprises the following steps: S1. Upper and lower mold closing: After the upper and lower sand molds of the insulator iron cap are respectively embedded in the interior of the upper mold frame box (3) and the lower mold frame box (4), the lower mold frame box (4) is placed on the two positioning rods (2) so that the lower mold frame box (4) is fitted with the positioning plate (10), and then the two hydraulic rods (9) are driven to move the L-shaped fixing rod (13) so that the docking support block (14) is embedded in the interior of the docking support frame (11), thereby stably fixing the lower mold frame box (4), and then the upper mold frame box (3) is placed on the two positioning rods (2) so that the upper mold frame box (3) is fitted with the lower mold frame box (4); S2, molten iron casting: After the upper mold frame box (3) and the lower mold frame box (4) are molded, the lifting motor (507) is controlled to start, driving the lifting threaded rod (505) to rotate, and the lifting transmission block (506) drives the shifting control box (503) to rise through two connecting rods (513), so that the sealing plate (504) drives the multiple sealing rods (509) to separate from the injection hole on the upper mold frame box (3), and then the shifting motor (510) is controlled to start, driving the shifting threaded rod (512) to rotate, so that the composite tooth plate (514) drives the driven gear (511) to rotate. , driving the sealing plate (504) to move away from the upper side of the upper mold frame box (3), thereby sequentially injecting multiple liquid metals into the sand mold cavity between the upper mold frame box (3) and the lower mold frame box (4) through the injection holes on the top of the upper mold frame box (3), thereby realizing gradient alloy compounding. After the injection is completed, the shifting motor (510) is controlled to reverse, and finally the sealing plate (504) is returned to the upper side of the upper mold frame box (3). The lifting motor (507) is controlled to reverse, and finally the sealing plate (504) drives multiple sealing rods (509) to be inserted into the multiple injection holes on the upper mold frame box (3); S3, mold opening and air cooling: After the insulator iron cap is formed, the upper mold frame box (3) is removed from the two positioning rods (2), and the ejection motor (18) is controlled to start, driving the ejection threaded rod (15) to rotate, so that the ejection transmission plate (16) drives the two ejection transmission rods (17) to rise, so that the synchronous control box (601) drives multiple ejector rods (602) to eject the insulator iron cap from the sand mold of the lower mold frame box (4), and each insulator iron cap is ejected by each ejector rod (602). The insert is supported, and then the air cooler (12) is started to send cold air toward the upper side of the lower mold frame box (4), and at the same time, the drive motor (606) is started to drive the four second transmission gears (605) to rotate synchronously, and each second transmission gear (605) drives the corresponding first transmission gear (603) to rotate, so that the four groups of first transmission gears (603) all keep rotating synchronously, so that the multiple top rods (602) drive the multiple insulator iron caps to keep rotating stably under the wind of the air cooler (12).

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