Ultrathin metal cover plate die-casting die device

Abstract

The invention relates to an ultrathin metal cover plate die-casting die device, which relates to a die-casting forming technology, and comprises a workbench, a fixed die holder mounted on the workbench and a movable die holder matched with the fixed die holder, and the movable die holder is provided with an injection molding opening for injecting molten metal. The oil conveying jacking mechanism is used for jacking the formed product, the oil return adsorption mechanism is used for recycling oil and synchronously recycling oil adhered to the formed product, and the air blowing mechanism assists in working of the oil return adsorption mechanism. The oil conveying jacking mechanism comprises an oil storage tank installed on the workbench, an oil conveying tank installed on the workbench, an oil conveying pipe communicating the oil storage tank with the oil conveying tank, an oil conveying pipe communicating the oil conveying tank with the fixed mold base, a piston plate installed on the oil conveying tank in a sliding mode and a driving assembly driving the piston plate to slide. By means of the structure, scratches on the surface of a formed product can be effectively avoided when the formed product is ejected out, and therefore the product quality is improved.

Description

Technical Field

[0001] This invention relates to the field of die casting technology, and in particular to a die casting mold device for ultra-thin metal cover plates. Background Technology

[0002] As industries such as electronics and automobiles move towards lightweighting and miniaturization, the application of ultra-thin metal covers is becoming increasingly widespread. However, ordinary die-casting molds are difficult to adapt to ultra-thin structures, thus creating an urgent need for specialized die-casting molds to meet production demands. At the same time, the demand for large-scale production of ultra-thin metal covers in the automotive and municipal sectors has also driven the research and development of die-casting molds suitable for such products.

[0003] Existing ultra-thin metal cover die-casting molds include a worktable, an ejector rod, a fixed mold base, and a moving mold base. The moving mold base has an injection port on its top for easy injection molding. During operation, the fixed mold base is first placed on top of the worktable. Then, driven by an external hydraulic cylinder, the moving mold base is raised and lowered until it fits against the fixed mold base. At this point, molten metal is injected through the injection port. After the product is formed, the ejector rod ejects the product, achieving automatic demolding.

[0004] In the above structure, when the molded product is ejected by the ejector rod, the ejector rod needs to have a large ejecting force to eject the molded product, which can easily leave scratches on the surface of the molded product and reduce product quality. Summary of the Invention

[0005] To avoid leaving scratches on the surface of the molded product during ejection, the present invention provides an ultra-thin metal cover plate die casting mold device.

[0006] This invention provides an ultra-thin metal cover plate die-casting mold device, which adopts the following technical solution: An ultra-thin metal cover die-casting mold device includes a worktable, a fixed mold base mounted on the worktable, and a movable mold base cooperating with the fixed mold base. The movable mold base has an injection port for injecting molten metal. It also includes an oil conveying and lifting mechanism for pushing the molded product, an oil return and adsorption mechanism for recovering oil and simultaneously recovering oil adhering to the molded product, and a blower mechanism for assisting in separating the molded product from the movable mold base and ensuring that the molded product remains in the fixed mold base. The blower mechanism assists the oil return and adsorption mechanism during operation. The oil conveying and lifting mechanism includes an oil storage tank installed on the worktable, an oil delivery tank installed on the worktable, an oil delivery pipe connecting the oil storage tank and the oil delivery tank, an oil delivery pipe connecting the oil delivery tank and the fixed mold base, a piston plate slidably installed on the oil delivery tank, and a drive assembly for driving the piston plate to slide.

[0007] By adopting the above technical solution, when the molded product needs to be ejected, the blower mechanism first assists in separating the molded product from the moving mold base, ensuring that the molded product remains in the fixed mold base. Then, the drive assembly is activated to move the piston plate, transporting the oil stored in the oil tank to the fixed mold base, thereby ejecting the molded product from the fixed mold base, achieving non-destructive demolding and avoiding scratches on the surface of the molded product. After the molded product is ejected, the oil adhering to the surface of the molded product and the oil in the fixed mold base are recovered through the cooperation of the oil return and adsorption mechanism, realizing the recycling of oil.

[0008] Optionally, the oil delivery pipe is provided with a one-way valve structure for supplying oil from the oil storage tank to the oil delivery tank in one direction; The one-way valve structure includes a first sealing valve core slidably installed in the oil delivery pipe, a fixed disc fixedly installed in the oil delivery pipe, and a first compression spring connected between the first sealing valve core and the fixed disc; the first compression spring drives the first sealing valve core to always have the tendency to insert into the oil delivery pipe to close the oil delivery pipe.

[0009] By adopting the above technical solution, when the drive assembly drives the piston plate to slide downwards within the oil tank, the volume of the oil tank increases and the pressure decreases. This causes the one-way valve structure to open, and oil from the reservoir is drawn into the oil tank through the supply gap between the first sealing valve core and the oil delivery pipe. When the drive assembly drives the piston plate to slide upwards within the oil tank, it compresses the oil inside the tank, increasing the pressure. At this time, the high pressure inside the oil tank causes the one-way valve structure to seal, preventing oil from flowing back into the reservoir.

[0010] Optionally, the oil delivery pipe passes through the fixed mold base and the oil delivery port of the oil delivery pipe is located inside the fixed mold base. An oil delivery opening and closing structure is provided inside the oil delivery pipe to control the opening and closing of the oil delivery pipe. The oil delivery opening and closing structure includes a second sealing valve core slidably installed inside the oil delivery pipe, a protective shell installed inside the oil delivery tank, and a second compression spring connected between the second sealing valve core and the protective shell; the second compression spring drives the second sealing valve core to always have the tendency to insert into the oil delivery pipe to close the oil delivery pipe.

[0011] By adopting the above technical solution, when the oil supply opening and closing structure is closed, the second sealing valve seals the oil supply pipe to prevent leakage of molten metal during injection. At the same time, when the drive assembly drives the piston plate to slide upward in the oil supply tank, the high pressure in the oil supply tank causes the second sealing valve core to overcome the resistance of the second pressure spring and move downward, thereby opening the oil supply opening and closing structure and driving the oil to be directly transported to the fixed mold base through the oil supply gap between the second sealing valve core and the oil supply pipe.

[0012] Optionally, a recovery platform is installed on one side of the workbench, and the oil return adsorption mechanism is installed inside the recovery platform; The oil return adsorption mechanism includes a recovery hopper installed on the recovery platform for recovering oil adhering to the surface of the molded product, an absorbent sponge detachably installed on the recovery hopper for adsorbing oil adhering to the surface of the molded product, a recovery box installed on the recovery platform, a recovery pipe connecting the recovery hopper and the recovery box, an absorbent pipe connecting the oil delivery tank and the recovery box, and a delivery pump installed on the recovery platform for delivering oil from the recovery box to the oil storage tank.

[0013] By adopting the above technical solution, the molded product with adhering oil is placed in the recycling hopper, and then the oil is absorbed into the recycling tank through the absorption sponge and recycling pipe. Then, the oil in the recycling tank and the oil in the oil transfer tank are transported to the oil storage tank through the transfer pump, so as to realize the recycling of oil and reduce costs.

[0014] Optionally, the absorption pipe passes through the workbench, and the absorption pipe is provided with an oil return opening and closing structure to control the oil to flow unidirectionally from the oil delivery tank into the recovery tank; The oil return opening and closing structure includes a third sealing valve core slidably installed in the absorption pipe, a sealing shell installed in the recovery tank, and a third compression spring connected between the third sealing valve core and the sealing shell; the third compression spring drives the third sealing valve core to always have the tendency to insert into the absorption pipe to close the absorption pipe.

[0015] By adopting the above technical solution, the pump is started to generate suction in the recovery tank, which drives the third sealing valve core to overcome the resistance of the third compression spring, so that an oil suction gap is formed between the third sealing valve core and the absorption pipe, so that the oil is sucked from the oil delivery tank through the absorption pipe and transported to the recovery tank. At the same time, the suction generated transports the oil in the recovery tank to the oil storage tank through the oil extraction pipe and the oil discharge pipe.

[0016] Optionally, a filter screen is detachably installed inside the recycling bin for filtering used oil, and the filter screen is locked to the recycling bin by a locking assembly; The locking assembly includes a pressure plate slidably mounted on the recycling bin and a locking rod mounted on the pressure plate for fixing the filter screen to the recycling bin; the recycling bin has a sliding groove for the pressure plate to slide, so as to restrict the pressure plate to move vertically only along the sliding groove; a fourth compression spring is connected between the sliding groove and the pressure plate, and the fourth compression spring drives the locking rod to always have the tendency to insert into the filter screen and the recycling bin.

[0017] By adopting the above technical solution, the filter screen can clean impurities in the oil to facilitate subsequent oil recycling. At the same time, it can clean the filter screen that has been used for a long time. By pressing the pressure plate, the pressure plate overcomes the resistance of the fourth pressure spring and moves, thereby driving the locking rod to exit the filter screen and the recycling box, so that the filter screen and the recycling box are no longer fixed, so that the filter screen can be taken out for cleaning.

[0018] Optionally, a support frame is mounted on the workbench, and the blower is mounted on the support frame; The blower mechanism includes an air pump mounted on the support frame and an air duct connected to the air pump for delivering air; the air duct has two air outlets, one of which is located directly above the injection port to blow the molded product and oil in the mold base; the other air outlet is located directly above the recovery hopper to blow the oil adhering to the surface of the molded product placed in the recovery hopper.

[0019] By adopting the above technical solution, the blower mechanism is activated, and the air pump starts working to deliver the generated air to the air supply pipe and discharge it from the air outlet. The air output from the air outlet located directly above the injection port blows into the mold base to blow the residual oil inside the mold base towards the oil supply pipe inlet. Meanwhile, the air output from the air outlet located directly above the recovery hopper blows through the air inlet of the pressure plate onto the surface of the pressed molded product to further sweep the oil on the product surface into the absorbent sponge for adsorption.

[0020] Optionally, the support frame is provided with a pressing component; the pressing component is used to drive the molded product to press and adhere to the absorbent sponge when the molded product is located in the recycling hopper; The clamping assembly includes a clamping hydraulic cylinder mounted on the support frame and a clamping plate connected to the output end of the clamping hydraulic cylinder; the clamping plate is provided with an air inlet hole so that the air delivered by the air outlet can pass through and enter the recovery hopper.

[0021] By adopting the above technical solution, the hydraulic cylinder is activated to drive the clamping plate to rise and fall until the clamping plate firmly presses the molded product onto the absorbent sponge in the recycling hopper. The squeezing pressure then facilitates the absorption of oil adhering to the product surface by the absorbent sponge.

[0022] Optionally, a placement frame is installed on the top of the workbench, the fixed mold base is installed on the placement frame, and clamping mechanisms are symmetrically arranged on the placement frame for fixing the placement frame and the fixed mold base. The clamping mechanism includes a clamping plate slidably mounted on the placement frame and clamping the fixed mold base from both sides of the placement frame, a bidirectional screw that drives the clamping plate to move, a drive plate slidably mounted on the placement frame, a fifth compression spring connected between the drive plate and the clamping plate, and a worm gear assembly that drives the two bidirectional screws to rotate synchronously; the fifth compression spring drives the clamping plate to always tend to move closer to the fixed mold base.

[0023] By adopting the above technical solution, when the bidirectional screw rotates, it drives the clamping plate to move and fix both sides of the fixed mold base. At the same time, after the clamping plate contacts the fixed mold base, the clamping force continues to be applied, and the fifth compression spring will generate elastic deformation. Through deformation, it absorbs excessive clamping impact force, avoids damage to the surface of the fixed mold base by the clamping plate, and the fifth compression spring is always in a pre-compressed state, which has the tendency to drive the clamping plate closer to the fixed mold base, ensuring that the clamping plate and the fixed mold base are always in close contact and maintain a stable clamping state.

[0024] Optionally, the worm gear assembly is symmetrically arranged on the placement frame; the worm gear assembly includes a worm gear mounted on the bidirectional screw and a worm segment meshing with the worm gear; a rotating shaft is rotatably mounted on the placement frame, the worm segment is mounted on the rotating shaft, and a rotating wheel is installed at the end of the rotating shaft to facilitate manual rotation, so that when the rotating shaft rotates, it drives the worm gear assembly to drive the two bidirectional screws to rotate synchronously.

[0025] By adopting the above technical solution, when the rotating wheel drives the rotating shaft to rotate, the rotating shaft will drive the worm segment to rotate, the worm segment will drive the worm wheel meshing with it to rotate, and the worm wheel will drive the bidirectional screw fixed with it to rotate, so as to achieve the synchronous rotation of the two bidirectional screws.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. When the molded product needs to be ejected, the blower mechanism first assists in separating the molded product from the moving mold base, ensuring the molded product remains in the fixed mold base. Then, the drive assembly is activated to move the piston plate, transporting the oil stored in the oil tank to the fixed mold base, thereby ejecting the molded product from the fixed mold base, achieving non-destructive demolding and avoiding scratches on the surface of the molded product. After the molded product is ejected, the oil adhering to the surface of the molded product and the oil in the fixed mold base are recovered through the cooperation of the oil return and adsorption mechanism, realizing oil recycling. 2. The molded product with oil adhering to it is placed in the recycling hopper, and then the oil is absorbed into the recycling tank through the absorption sponge and recycling pipe. Then, the oil in the recycling tank and the oil in the oil delivery tank are transported to the oil storage tank through the delivery pump to realize the recycling of oil and reduce costs. 3. Activate the blower mechanism to start the air pump, which delivers the generated air to the air supply pipe and discharges it from the air outlet. The air outlet located directly above the injection port blows air into the mold base to blow any residual oil inside towards the oil supply pipe inlet. Meanwhile, the air outlet located directly above the recovery hopper blows air through the air inlet of the pressure plate onto the surface of the pressed molded product, further sweeping the oil from the product surface into the absorbent sponge for adsorption. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an ultra-thin metal cover plate die-casting mold device; Figure 2 This is an overall sectional view of an ultra-thin metal cover plate die-casting mold device; Figure 3 This is a schematic diagram of the clamping mechanism; Figure 4 This is an exploded view of the oil conveying lifting mechanism; Figure 5 yes Figure 2 A magnified view of part A in the middle; Figure 6 yes Figure 2 A magnified view of part B in the middle section; Figure 7 This is a schematic diagram of the oil return adsorption mechanism; Figure 8 This is a cross-sectional view of the recycling bin; Figure 9 yes Figure 8 A magnified view of part C in the middle; Figure 10 This is a structural diagram of the blower mechanism and the clamping assembly.

[0028] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Worktable; 11. Fixed mold base; 12. Moving mold base; 121. Injection port; 13. Placement rack; 14. Support frame; 141. Arc block; 142. Electric push rod; 143. Connecting rod; 15. Lifting hydraulic cylinder; 16. Mounting base; 17. First telescopic guide column; 18. Recovery table; 181. Inspection port; 2. Clamping mechanism; 21. Clamping plate; 22. Bidirectional screw; 23. Drive plate; 24. Fifth compression spring; 2 5. Worm gear assembly; 251. Worm section; 252. Worm gear; 26. Moving block; 27. Moving hole; 28. Rotating shaft; 29. ​​Rotating wheel; 3. Oil conveying lifting mechanism; 31. Oil storage tank; 311. Oil inlet pipe; 312. Oil outlet pipe; 32. Oil conveying tank; 33. Oil delivery pipe; 34. Oil delivery pipe; 35. Piston plate; 36. Drive assembly; 361. Drive motor; 362. Threaded rod; 363. Threaded cylinder; 364. Fixed plate; 365. Third telescopic guide column; 37. Single 371. First sealing valve core; 372. Fixed disc; 373. First compression spring; 374. Connecting block; 38. Oil delivery opening and closing structure; 381. Second sealing valve core; 382. Protective shell; 383. Second compression spring; 384. Fixed block; 4. Oil return adsorption mechanism; 41. Recovery hopper; 42. Absorbent sponge; 43. Recovery box; 44. Recovery pipe; 45. Absorption pipe; 451. Oil return opening and closing structure; 4511. Third sealing valve core; 4512. Sealing shell; 4513. 4514. Third compression spring; 4515. Arc plate; 4516. Connecting rod; 46. Delivery pump; 47. Fixed base; 48. Oil suction pipe; 49. Oil discharge pipe; 5. Blowering mechanism; 51. Air pump; 52. Air pipe; 53. Air outlet; 6. Pressing assembly; 61. Pressing hydraulic cylinder; 62. Pressing plate; 63. Air inlet; 64. Second telescopic guide column; 7. Filter screen; 71. Handle; 8. Locking assembly; 81. Pressure plate; 82. Locking rod; 83. Sliding groove; 84. Fourth compression spring. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0030] This invention discloses an ultra-thin metal cover plate die-casting mold device.

[0031] Reference Figure 1 as well as Figure 2 An ultra-thin metal cover plate die casting mold device includes a worktable 1, a fixed mold base 11, a moving mold base 12, a clamping mechanism 2, an oil conveying and lifting mechanism 3, an oil return and adsorption mechanism 4, and a blower mechanism 5.

[0032] A placement frame 13 is fixedly installed on the top of the workbench 1. A fixed mold base 11 is installed on the placement frame 13. A support frame 14 is fixedly installed on the top of the workbench 1. A lifting hydraulic cylinder 15 is fixedly installed on the inner side of the top of the support frame 14. The output end of the lifting hydraulic cylinder 15 is fixedly connected to a mounting base 16. The mounting base 16 is fixed to the moving mold base 12 by fastening bolts, so that the moving mold base 12 is driven to fit against the fixed mold base 11 by activating the lifting hydraulic cylinder 15. At the same time, an injection port 121 is opened on the moving mold base 12 for injecting molten metal. A recycling table 18 is fixedly installed on one side of the workbench 1. A first telescopic guide post 17 is fixedly installed on the mounting base 16. The end of the first telescopic guide post 17 away from the moving mold base 12 is fixedly installed on the side of the support frame 14 near the moving mold base 12, so as to restrict the moving mold base 12 so that the moving mold base 12 can only move vertically.

[0033] Clamping mechanism 2 is installed between worktable 1 and placement frame 13 to fix the fixed mold base 11 to the placement frame 13. Oil delivery and lifting mechanism 3 is installed on worktable 1 to deliver oil to the fixed mold base 11 to push the molded product through the oil. Oil return and adsorption mechanism 4 is installed on recovery table 18 to recover the oil in the fixed mold base 11 and the oil adhering to the molded product. Blowing mechanism 5 is installed on support frame 14 to assist in separating the molded product from the moving mold base 12 and to ensure that the molded product remains in the fixed mold base 11, and to assist in the operation of oil return and adsorption mechanism 4.

[0034] During operation, the fixed mold base 11 is first installed on the placement frame 13 and firmly fixed to the placement frame 13 by the clamping mechanism 2. At this time, the moving mold base 12 is raised and lowered by activating the lifting hydraulic cylinder 15 to drive the moving mold base 12 to fit against the fixed mold base 11. Then, molten metal is injected through the injection port 121. After the product cools and forms, the moving mold base 12 is separated from the fixed mold base 11. At the same time, the blower mechanism 5 is activated to generate air, which enters the fixed mold base 11 through the injection port 121 to assist in the separation of the formed product from the moving mold base 12 and ensure that the formed product remains in the fixed mold base 11. Then, the oil supply lifting mechanism 3 is activated to deliver oil into the fixed mold base 11 to push the formed product. After the formed product is removed, the oil return adsorption mechanism 4 is activated to work, and with the assistance of the blower mechanism 5, the oil in the fixed mold base 11 and the oil adhering to the surface of the formed product are recovered. At the same time, when the oil pushes the formed product, an oil film will form on the surface of the formed product to prevent the formed product from rusting.

[0035] Reference Figure 2 as well as Figure 3The clamping mechanism 2 includes a clamping plate 21, a bidirectional screw 22, a drive plate 23, a fifth compression spring 24, and a worm gear assembly 25. Two of each of the bidirectional screw 22, clamping plate 21, drive plate 23, and worm gear assembly 25 are symmetrically arranged on the placement frame 13. The worm gear assembly 25 includes a worm section 251 and a worm wheel 252. A movable block 26 is threaded onto the outer side of the bidirectional screw 22. The drive plate 23 is fixedly mounted on the movable block 26. The placement frame 13 has a moving hole 27 for horizontal displacement of the movable block 26 to restrict the rotation of the drive plate 23 and guide its movement. The fifth compression spring 24 is connected between the drive plate 23 and the clamping plate 21, and the fifth compression spring 24 drives the clamping plate 21 to always tend to move closer to the fixed mold base 11.

[0036] An arc-shaped block 141 is fixedly mounted on the mounting frame 13. A rotating shaft 28 is rotatably mounted on the arc-shaped block 141. Two worm gear segments 251 are fixedly mounted on the rotating shaft 28, and two worm wheels 252 are fixedly mounted on the corresponding bidirectional screws 22. A rotating wheel 29 is fixedly mounted at the end of the rotating shaft 28 so that when the rotating wheel 29 rotates, it drives the rotating shaft 28 to rotate, causing the two bidirectional screws 22 to rotate synchronously.

[0037] During operation, after the fixed mold base 11 is installed on the placement frame 13, the rotating wheel 29 drives the rotating shaft 28 to rotate. When the rotating shaft 28 rotates, it drives the worm section 251 to rotate. When the worm section 251 rotates, it drives the worm wheel 252 that meshes with it to rotate. When the worm wheel 252 rotates, it drives the bidirectional screw 22 that is fixed with it to rotate. When the bidirectional screw 22 rotates, it drives the moving block 26 that is threaded to it to move along the moving hole 27. This further drives the drive plate 23 and the clamping plate 21 to move along the moving hole 27 to fix both sides of the fixed mold base 11. Meanwhile, when the clamping plate 21 contacts the fixed mold base 11, if the clamping force continues to be applied, the fifth compression spring 24 will undergo elastic deformation. The deformation absorbs the excessive clamping impact force, preventing the clamping plate 21 from damaging the surface of the fixed mold base 11. The fifth compression spring 24 is always in a pre-compressed state, which has the tendency to drive the clamping plate 21 closer to the fixed mold base 11, ensuring that the clamping plate 21 and the fixed mold base 11 are always in close contact and maintaining a stable clamping state.

[0038] Reference Figure 2 as well as Figure 4The oil conveying lifting mechanism 3 includes an oil storage tank 31, an oil delivery tank 32, an oil delivery pipe 33, an oil delivery pipe 34, a piston plate 35, and a drive assembly 36. The drive assembly 36 includes a drive motor 361, a threaded rod 362, and a threaded cylinder 363. The oil storage tank 31 is fixedly mounted on the worktable 1, the oil delivery tank 32 is fixedly mounted on the worktable 1, and the drive motor 361 is fixedly mounted on the worktable 1. The threaded rod 362 is fixedly connected to the output end of the drive motor 361 via a coupling. The threaded cylinder 363 is threadedly connected to the outside of the threaded rod 362 and passes through the oil delivery tank 32. The piston plate 35 is fixedly mounted on the side away from the worktable 1 at the end of the threaded cylinder 363 closest to the worktable 1, and the piston plate 35 is slidably mounted inside the oil delivery tank 32 so that when the drive motor 361 drives the threaded rod 362 to rotate, the piston plate 35 moves within the oil delivery tank 32 to change the pressure within the oil delivery tank 32. A fixed plate 364 is fixedly installed on the outer side of the threaded cylinder 363. A third telescopic guide post 365 is fixedly installed on one side of the fixed plate 364. One end of the third telescopic guide post 365 is fixedly installed on the inner bottom wall of the workbench 1 to restrict the threaded cylinder 363 so that the threaded cylinder 363 can only move vertically.

[0039] The inlet of the oil supply pipe 33 is connected to the oil storage tank 31, and the outlet of the oil supply pipe 33 is connected to the oil delivery tank 32. The inlet of the oil delivery pipe 34 is connected to the oil delivery tank 32, and the outlet of the oil delivery pipe 34 is connected to the fixed mold base 11, and the oil delivery pipe 34 passes through the worktable 1. A one-way valve structure 37 is provided in the oil supply pipe 33 for supplying oil from the oil storage tank 31 to the oil delivery tank 32 in one direction. The oil delivery pipe 34 passes through the fixed mold base 11, and the oil outlet of the oil delivery pipe 34 is located in the fixed mold base 11. An oil delivery opening and closing structure 38 is installed in the oil delivery pipe 34 to control the opening and closing of the oil delivery pipe 34.

[0040] Reference Figure 2 as well as Figure 5 The one-way valve structure 37 includes a first sealing valve core 371, a fixed disc 372, and a first compression spring 373. The first sealing valve core 371 is slidably installed inside the oil delivery pipe 33. A connecting block 374 is fixedly installed on the outside of the fixed disc 372 and is fixedly installed inside the oil delivery pipe 33. The first compression spring 373 is connected between the first sealing valve core 371 and the fixed disc 372 to drive the first sealing valve core 371 to always have the tendency to insert into the oil delivery pipe 33 and close the oil delivery pipe 33.

[0041] The one-way valve structure 37 has a sealed state and an open state. In the open state, the first sealing valve core 371 compresses the first compression spring 373, forming an oil supply gap between the first sealing valve core 371 and the oil delivery pipe 33 to deliver oil from the oil storage tank 31 to the oil supply tank 32. In the sealed state, the first compression spring 373 presses the first sealing valve core 371 tightly against the oil delivery pipe 33 to seal the oil delivery pipe 33 and prevent oil leakage.

[0042] Reference Figure 2 as well as Figure 6 The oil supply opening and closing structure 38 includes a second sealing valve core 381, a protective shell 382, ​​and a second compression spring 383. The second sealing valve core 381 is slidably installed inside the protective shell 382, ​​and a fixing block 384 is fixedly installed on the outside of the protective shell 382, ​​which is fixedly installed inside the oil supply pipe 34. The second compression spring 383 connects the second sealing valve core 381 and the protective shell 382 to drive the second sealing valve core 381 to always have a tendency to insert into the oil supply pipe 34 and close the oil supply pipe 34. The second sealing valve core 381 is frustum-shaped.

[0043] A support frame 14 is installed on the workbench 1. An electric push rod 142 is fixedly installed inside the support frame 14. The output end of the electric push rod 142 is fixedly connected to a plug rod 143 through a coupling. The plug rod 143 is movably inserted into the second sealing valve core 381 and the oil supply pipe 34 to lock the second sealing valve core 381 when the molten metal is injected, so as to prevent the second sealing valve core 381 from retracting into the oil supply pipe 34 and causing the molten metal to leak.

[0044] The oil supply opening and closing structure 38 has a sealed state and an open state. When in the open state, the second sealing valve core 381 compresses the second compression spring 383, forming an oil supply gap between the second sealing valve core 381 and the oil supply pipe 34 to deliver oil from the oil tank 32 to the fixed mold base 11. When in the sealed state, the second compression spring 383 presses the second sealing valve core 381 tightly against the oil supply pipe 34 to seal the oil supply pipe 34.

[0045] During operation, the drive motor 361 rotates forward, driving the threaded rod 362 to rotate. The rotation of the threaded rod 362 drives the threaded cylinder 363 to move downward. The threaded cylinder 363 drives the piston plate 35 to slide downward within the oil tank 32, increasing the volume and decreasing the pressure inside the oil tank 32. This causes the one-way valve structure 37 to open, and oil in the oil storage tank 31 is drawn into the oil tank 32 through the oil supply gap between the first sealing valve core 371 and the oil delivery pipe 33.

[0046] When oil enters the oil tank 32, the electric push rod 142 is activated to drive the plug rod 143 to disengage from the second sealing valve core 381, thereby releasing the lock on the second sealing valve core 381. Then, by controlling the drive motor 361 to reverse, the threaded rod 362 rotates in the opposite direction, driving the threaded cylinder 363 to move upward, causing the piston plate 35 to slide upward within the oil tank 32, compressing the oil in the oil tank 32 and increasing the pressure inside the tank. At this time, the high pressure inside the oil tank 32 causes the one-way valve structure 37 to seal, preventing oil from flowing back to the oil storage tank 31 and avoiding oil leakage. At the same time, the high pressure inside the oil tank 32 causes the second sealing valve core 381 to overcome the resistance of the second compression spring 383 and move downward, opening the oil supply opening and closing structure 38, driving the oil directly through the oil supply gap between the second sealing valve core 381 and the oil supply pipe 34 to be delivered into the fixed mold base 11, pushing the molded product within the fixed mold base 11.

[0047] At this point, the worker can remove the molded product using the grippers. When the molded product is pushed, a small amount of oil will adhere to its surface and form an oil film, which can effectively prevent the product from rusting. At the same time, to avoid oil waste, after the molded product is removed, the oil adhering to the product surface and the oil in the fixed mold base 11 are recycled and absorbed by the oil return and adsorption mechanism 4.

[0048] Reference Figure 2 as well as Figure 7 The oil return adsorption mechanism 4 is installed inside the recovery platform 18. The oil return adsorption mechanism 4 includes a recovery hopper 41, an absorbent sponge 42, a recovery box 43, a recovery pipe 44, an absorption pipe 45, and a delivery pump 46. The recovery hopper 41 is fixedly installed on the recovery platform 18. The absorbent sponge 42 is directly laid inside the recovery hopper 41. When it needs to be replaced after long-term use, simply remove the absorbent sponge 42 and lay a new absorbent sponge 42 inside the recovery hopper 41. The recovery box 43 is fixedly installed inside the recovery platform 18. The oil inlet of the recovery pipe 44 is connected to the oil outlet of the recovery hopper 41, and the oil outlet of the recovery pipe 44 is connected to the recovery box 43. The absorption pipe 45 passes through the workbench 1. The oil inlet of the absorption pipe 45 is connected to the oil delivery tank 32, and the oil outlet of the absorption pipe 45 is connected to the recovery box 43. A fixed base 47 is fixedly installed on the recovery platform 18, and the delivery pump 46 is fixedly installed on the fixed base 47. The delivery pump 46 is connected to an oil extraction pipe 48 and an oil discharge pipe 49. The oil discharge pipe 49 passes through the workbench 1 and its outlet is connected to the oil storage tank 31. The oil inlet of the oil extraction pipe 48 is connected to the recovery tank 43 so as to transport the oil in the recovery tank 43 to the oil storage tank 31 for recycling.

[0049] The absorption pipe 45 is equipped with a return oil opening and closing structure 451 to control the oil to flow unidirectionally from the oil tank 32 into the recovery tank 43.

[0050] Reference Figure 8 as well as Figure 9The return oil opening and closing structure 451 includes a third sealing valve core 4511, a sealing shell 4512, and a third compression spring 4513. An arc-shaped plate 4514 is fixedly installed on the outer side of the sealing shell 4512, and a connecting rod 4515 is fixedly installed on the arc-shaped plate 4514. The end of the connecting rod 4515 is fixedly installed on the inner wall of the recovery tank 43. The third sealing valve core 4511 is slidably installed inside the absorption pipe 45, and the third compression spring 4513 connects the third sealing valve core 4511 and the sealing shell 4512. The third compression spring 4513 drives the third sealing valve core 4511 to always tend to insert into the absorption pipe 45 to close the absorption pipe 45.

[0051] The oil return opening and closing structure 451 has a sealed state and an open state. When in the open state, the third sealing valve core 4511 compresses the third pressure spring 4513, forming an oil suction gap between the third sealing valve core 4511 and the absorption pipe 45, so that oil flows unidirectionally from the oil supply tank 32 into the recovery tank 43. When in the sealed state, the third pressure spring 4513 presses the third sealing valve core 4511 tightly against the absorption pipe 45 to seal the absorption pipe 45.

[0052] The oil reservoir 31 is connected to an oil inlet pipe 311 to facilitate the delivery of external oil into the oil reservoir 31. The oil reservoir 31 is also connected to an oil outlet pipe 312 to facilitate the drainage and replacement of oil in the oil reservoir 31. Control valves are installed on both the oil inlet pipe 311 and the oil outlet pipe 312 to control their opening and closing.

[0053] Reference Figure 2 as well as Figure 10 The blower mechanism 5 is fixedly mounted on the support frame 14. The blower mechanism 5 includes an air pump 51 and an air duct 52. The air pump 51 is fixedly mounted on the support frame 14, and the air outlet of the air pump 51 is connected to the air duct 52. The air duct 52 has two air outlets 53. One air outlet 53 is located directly above the injection port 121 to assist in the separation of the product from the moving mold base 12 and ensure that the molded product remains in the fixed mold base 11. At the same time, it blows away the oil in the fixed mold base 11 after the product is ejected. The other air outlet 53 is located directly above the recovery hopper 41 to blow away the oil adhering to the surface of the molded product placed in the recovery hopper 41.

[0054] A clamping assembly 6 is mounted on the support frame 14 to press the molded product against the absorbent sponge 42 when the molded product is located in the recycling hopper 41. The clamping assembly 6 includes a clamping hydraulic cylinder 61 and a clamping plate 62. The clamping hydraulic cylinder 61 is fixedly mounted on the support frame 14, and the clamping plate 62 is fixedly connected to the output end of the clamping hydraulic cylinder 61 via a coupling. An air inlet 63 is provided on the clamping plate 62 to allow air supplied by the air outlet 53 to pass through and enter the recycling hopper 41. A second telescopic guide post 64 is fixedly mounted on the side of the clamping plate 62 away from the recycling table 18. The end of the second telescopic guide post 64 away from the recycling table 18 is fixedly mounted on the side of the support frame 14 near the recycling table 18 to restrict the clamping plate 62 so that the clamping plate 62 can only move vertically.

[0055] During operation, after the worker removes the molded product, it is placed in the recycling hopper 41. Then, by activating the hydraulic cylinder 61, the clamping plate 62 is raised and lowered until it presses the molded product tightly against the absorbent sponge 42 inside the recycling hopper 41. The squeezing pressure causes the absorbent sponge 42 to absorb the oil adhering to the product surface.

[0056] Simultaneously, the drive motor 361 rotates forward, driving the threaded rod 362 to rotate. The rotation of the threaded rod 362 drives the threaded cylinder 363 to move downward. The threaded cylinder 363 drives the piston plate 35 to slide downward in the oil tank 32, so that the piston plate 35 is located below the absorption pipe 45, and the pressure in the oil tank 32 is lower than the atmospheric pressure. Under the action of atmospheric pressure, the second sealing valve core 381 is driven to overcome the resistance of the second compression spring 383 to open the oil pipe 34, so that the oil in the fixed mold seat 11 enters the oil tank 32 through the oil pipe 34. And because the pressure in the oil tank 32 is low, the first sealing valve core 371 cannot overcome the resistance of the first compression spring 373, so that the oil delivery pipe 33 is sealed, so that the oil in the storage tank 31 cannot be delivered to the oil tank 32.

[0057] Simultaneously, by activating the blower mechanism 5, the air pump 51 begins operation, delivering the generated air to the air supply pipe 52 and discharging it from the air outlet 53. The air output from the air outlet 53, located directly above the injection port 121, blows towards the interior of the mold base 11, removing residual oil from the mold base 11 and directing it towards the inlet of the oil supply pipe 34. Meanwhile, the air output from the air outlet 53, located directly above the recovery hopper 41, is blown through the air inlet 63 of the pressure plate 62 onto the surface of the pressed molded product, further sweeping the oil from the product surface into the absorbent sponge 42 for adsorption. The oil adsorbed by the absorbent sponge 42, under its own gravity, is transported through the recovery pipe 44 to the recovery box 43.

[0058] Then, by starting the delivery pump 46, suction is generated in the recovery tank 43 to drive the third sealing valve core 4511 to overcome the resistance of the third compression spring 4513, so that an oil suction gap is formed between the third sealing valve core 4511 and the absorption pipe 45, so that oil is sucked from the oil delivery tank 32 through the absorption pipe 45 and transported to the recovery tank 43. At the same time, the suction generated transports the oil in the recovery tank 43 through the oil extraction pipe 48 and the oil discharge pipe 49 to the oil storage tank 31 to achieve recycling.

[0059] Reference Figure 8 The recycling bin 43 is equipped with a removable filter screen 7 for filtering used oil. The filter screen 7 is locked to the recycling bin 43 by a locking component 8.

[0060] The locking assembly 8 includes a pressure plate 81 and a locking rod 82. A sliding groove 83 is provided on the recycling bin 43 for the pressure plate 81 to slide, restricting the pressure plate 81 to move vertically only along the sliding groove 83. The locking rod 82 is fixedly mounted on the pressure plate 81 and used to secure the filter screen 7 to the recycling bin 43. A fourth compression spring 84 connects the sliding groove 83 and the pressure plate 81, causing the locking rod 82 to always tend to insert into the filter screen 7 and the recycling bin 43. A handle 71 is fixedly mounted on the filter screen 7, allowing the filter screen 7 to be pulled out of the recycling bin 43 when the locking rod 82 no longer secures it. Simultaneously, an inspection port 181 is provided on the recycling table 18 for easy replacement of the filter screen 7.

[0061] When the filter screen 7 needs to be cleaned, the pressure plate 81 is pressed through the access port 181, causing the pressure plate 81 to move against the resistance of the fourth pressure spring 84. This causes the locking rod 82 to disengage from the filter screen 7 and the recycling box 43, thus removing the filter screen 7 from the recycling box 43. Then, the filter screen 7 is pulled out of the recycling box 43 by pulling the handle 71 and moved out through the access port 181 for cleaning. After cleaning, the above operation is repeated in reverse to re-fix the filter screen 7 to the recycling box 43 for continued operation.

[0062] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A die-casting mold device for an ultra-thin metal cover plate, comprising a worktable (1), a fixed mold base (11) mounted on the worktable (1), and a movable mold base (12) cooperating with the fixed mold base (11), wherein the movable mold base (12) is provided with an injection port (121) for injecting molten metal, characterized in that, It also includes an oil lifting mechanism (3) for pushing the molded product, an oil return adsorption mechanism (4) for recovering oil and simultaneously recovering oil adhering to the molded product, and a blower mechanism (5) for assisting the molded product to separate from the moving mold base (12) and ensuring that the molded product remains in the fixed mold base (11); the blower mechanism (5) assists the oil return adsorption mechanism (4) when it is working. The oil delivery lifting mechanism (3) includes an oil storage tank (31) installed on the workbench (1), an oil delivery tank (32) installed on the workbench (1), an oil delivery pipe (33) connecting the oil storage tank (31) and the oil delivery tank (32), an oil delivery pipe (34) connecting the oil delivery tank (32) and the fixed mold base (11), a piston plate (35) slidably installed on the oil delivery tank (32), and a drive assembly (36) for driving the piston plate (35) to slide.

2. The die-casting mold device for an ultra-thin metal cover plate according to claim 1, characterized in that, The oil supply pipe (33) is provided with a one-way valve structure (37) for supplying oil from the oil storage tank (31) to the oil delivery tank (32) in one direction. The one-way valve structure (37) includes a first sealing valve core (371) slidably installed in the oil delivery pipe (33), a fixed disc (372) fixedly installed in the oil delivery pipe (33), and a first compression spring (373) connected between the first sealing valve core (371) and the fixed disc (372); the first compression spring (373) drives the first sealing valve core (371) to always have the tendency to insert into the oil delivery pipe (33) to close the oil delivery pipe (33).

3. The die-casting mold device for an ultra-thin metal cover plate according to claim 1, characterized in that, The oil pipe (34) passes through the fixed mold base (11) and the oil outlet of the oil pipe (34) is located inside the fixed mold base (11). An oil supply opening and closing structure (38) is provided inside the oil pipe (34) to control the opening and closing of the oil pipe (34). The oil supply opening and closing structure (38) includes a second sealing valve core (381) slidably installed in the oil supply pipe (34), a protective shell (382) installed in the oil tank (32), and a second compression spring (383) connected between the second sealing valve core (381) and the protective shell (382); the second compression spring (383) drives the second sealing valve core (381) to always have the tendency to insert into the oil supply pipe (34) to close the oil supply pipe (34).

4. The die-casting mold device for ultra-thin metal cover plates according to claim 1, characterized in that, A recovery platform (18) is installed on one side of the workbench (1), and the oil return adsorption mechanism (4) is installed inside the recovery platform (18); The oil return adsorption mechanism (4) includes a recovery hopper (41) installed on the recovery platform (18) for recovering oil adhering to the surface of the molded product, an absorbent sponge (42) detachably installed on the recovery hopper (41) for adsorbing oil adhering to the surface of the molded product, a recovery box (43) installed on the recovery platform (18), a recovery pipe (44) connecting the recovery hopper (41) and the recovery box (43), an absorption pipe (45) connecting the oil tank (32) and the recovery box (43), and a delivery pump (46) installed on the recovery platform (18) for delivering oil in the recovery box (43) to the oil storage tank (31).

5. The die-casting mold device for an ultra-thin metal cover plate according to claim 4, characterized in that, The absorption pipe (45) passes through the workbench (1), and the absorption pipe (45) is provided with an oil return opening and closing structure (451) to control the oil to flow from the oil tank (32) into the recovery tank (43) in one direction. The return oil opening and closing structure (451) includes a third sealing valve core (4511) slidably installed in the absorption pipe (45), a sealing shell (4512) installed in the recovery tank (43), and a third compression spring (4513) connected between the third sealing valve core (4511) and the sealing shell (4512); the third compression spring (4513) drives the third sealing valve core (4511) to always have the tendency to insert into the absorption pipe (45) to close the absorption pipe (45).

6. The ultra-thin metal cover plate die-casting mold device according to claim 4, characterized in that, The recycling bin (43) is detachably equipped with a filter screen (7) for filtering used oil. The filter screen (7) is locked to the recycling bin (43) by a locking component (8). The locking assembly (8) includes a pressure plate (81) slidably mounted on the recycling bin (43) and a locking rod (82) mounted on the pressure plate (81) for fixing the filter screen (7) to the recycling bin (43); the recycling bin (43) is provided with a sliding groove (83) for the pressure plate (81) to slide, so as to restrict the pressure plate (81) to move vertically only along the sliding groove (83); a fourth compression spring (84) is connected between the sliding groove (83) and the pressure plate (81), and the fourth compression spring (84) drives the locking rod (82) to always have the tendency to insert into the filter screen (7) and the recycling bin (43).

7. The die-casting mold device for an ultra-thin metal cover plate according to claim 4, characterized in that, A support frame (14) is installed on the workbench (1), and the blower mechanism (5) is mounted on the support frame (14); The blower mechanism (5) includes an air pump (51) mounted on the support frame (14) and an air duct (52) connected to the air pump (51) and used for conveying air; the air duct (52) has two air outlets (53), one of which is located directly above the injection port (121) to blow the molded product in the fixed mold base (11) and the oil in the fixed mold base (11); the other air outlet (53) is located directly above the recovery hopper (41) to blow the oil adhering to the surface of the molded product placed in the recovery hopper (41).

8. The die-casting mold device for an ultra-thin metal cover plate according to claim 7, characterized in that, The support frame (14) is provided with a pressing component (6); the pressing component (6) is used to drive the molded product to press and adhere to the absorbent sponge (42) when the molded product is located in the recycling hopper (41); The clamping assembly (6) includes a clamping hydraulic cylinder (61) installed on the support frame (14) and a clamping plate (62) connected to the output end of the clamping hydraulic cylinder (61); the clamping plate (62) is provided with an air inlet (63) so that the air delivered by the air outlet (53) can pass through and enter the recovery hopper (41).

9. The die-casting mold device for an ultra-thin metal cover plate according to claim 1, characterized in that, The workbench (1) is equipped with a placement rack (13) on top, and the fixed mold base (11) is installed on the placement rack (13). The placement rack (13) is symmetrically provided with clamping mechanisms (2), which are used to fix the placement rack (13) and the fixed mold base (11). The clamping mechanism (2) includes a clamping plate (21) that is slidably mounted on the placement frame (13) and clamps the fixed mold base (11) from both sides of the placement frame (13), a bidirectional screw (22) that drives the clamping plate (21) to move, a drive plate (23) that is slidably mounted on the placement frame (13), a fifth compression spring (24) connected between the drive plate (23) and the clamping plate (21), and a worm gear assembly (25) that drives the two bidirectional screws (22) to rotate synchronously; the fifth compression spring (24) drives the clamping plate (21) to always have a tendency to move closer to the fixed mold base (11).

10. The die-casting mold device for an ultra-thin metal cover plate according to claim 9, characterized in that, The worm gear assembly (25) is symmetrically arranged on the placement frame (13); the worm gear assembly (25) includes a worm wheel (252) installed on the bidirectional screw (22) and a worm segment (251) meshing with the worm wheel (252); a rotating shaft (28) is rotatably installed on the placement frame (13), the worm segment (251) is installed on the rotating shaft (28), and a rotating wheel (29) is installed at the end of the rotating shaft (28) to facilitate manual rotation, so that when the rotating shaft (28) rotates, the worm gear assembly (25) drives the two bidirectional screws (22) to rotate synchronously.

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