Discharging ejection device matched with automobile part die-casting die for use

Abstract

The invention relates to the technical field of automobile part die-casting, and discloses an unloading ejection device matched with an automobile part die-casting mould for use, which comprises a die-casting device, a spiral ejection device, two cooling devices and other structures, and is characterized in that the die-casting device is connected with a workbench, and the spiral ejection device is connected with the die-casting device; according to the casting mold, by arranging a first spiral column, an ejector rod, an ejector plate, a sealing cylinder, four connecting rods and other structures, under the cooperation of the ejector rod, the four connecting rods, a first sliding block, a second spring and other structures, when the ejector plate drives the sealing cylinder to eject a casting, the casting can be evenly subjected to ejection force, and the casting can be evenly cooled; the problems of deformation and the like caused by overlarge local stress of the casting and influence on the dimensional accuracy of the casting are prevented, and in the die casting process, due to a certain space between the ejector plate and the top of the sealing cylinder, the influence of deformation damage and the like caused by the fact that elements in the ejector plate are subjected to heat transmitted by the sealing cylinder for a long time can be prevented.

Description

Technical Field

[0001] The invention relates to the technical field of automobile component die-casting, in particular to a discharge ejection device used in conjunction with an automobile component die-casting mold. Background Art

[0002] A die-casting mold is a tool for casting metal parts. It is a tool that completes the die-casting process on a special die-casting forging machine. Currently, in the production and manufacturing process of automotive parts, die-casting molds are usually used for the production and processing of automotive parts.

[0003] In the process of ejecting the casting from the mold, the existing unloading and ejecting device of automobile parts usually drives the ejector plate to rise through the driving component, so that the ejector plate pushes the casting out of the mold. However, in the actual working process, the ejection force of the ejector plate may be unevenly distributed, affecting the ejection effect and stability of the ejector plate, and even causing some parts of the casting to be subjected to excessive force during the ejection process, while other parts are subjected to less force, which may cause the casting to deform or warp during the ejection process, affecting the dimensional accuracy of the casting. Therefore, a unloading and ejecting device for a die-casting mold of automobile parts is proposed. Summary of the invention

[0004] The present invention aims to solve the technical problem of how to make the ejection force of the ejector plate evenly distributed during the ejection of the casting, ensure the ejection effect and stability, and prevent the casting from being deformed during the ejection process, thereby affecting the dimensional accuracy of the casting. A discharge ejection device for a die-casting mold for automotive parts is provided.

[0005] The technical solution adopted by the present invention to solve its technical problem is: A discharge ejection device for a die-casting mold of automobile parts comprises a base, four support columns, a fixing seat, a workbench, a die-casting device, a spiral ejection device, two cooling devices and a controller.

[0006] The base is arranged horizontally and connected to the ground through four columns.

[0007] Four support columns are vertically arranged above the base and arranged in a square shape, and the bottoms of the four support columns are respectively fixedly connected to the top of the base.

[0008] The fixing seat is transversely arranged above the four supporting columns, and the top of the fixing seat is fixedly connected to the tops of the four supporting columns respectively.

[0009] The workbench is arranged above the base and between four supporting columns. The bottom of the workbench is fixedly connected to the top of the base. A through groove is arranged in the middle of the workbench, and a cavity is arranged inside the workbench.

[0010] The die-casting device is arranged on the upper part of the workbench, and is connected with the fixing seat and the workbench.

[0011] The spiral ejection device is arranged at the lower part of the fixed seat, and is connected with the fixed seat, the workbench and the die-casting device.

[0012] Two cooling and temperature-reducing devices are symmetrically arranged on the upper part of the workbench, and the two cooling and temperature-reducing devices are respectively connected to the workbench and respectively connected to the spiral ejection device.

[0013] The controller is arranged at the front part of the fixing seat, the controller is fixedly connected with the fixing seat, and the controller is electrically connected with the die-casting device.

[0014] When using this equipment, the staff controls the die-casting device to close the mold through the controller, and then injects material into the die-casting device in the closed mold. After the casting is cooled and formed, the staff controls the die-casting device to demold through the controller, the cooling device to cool the casting, and the spiral ejection device to eject the casting, and then the casting is taken out.

[0015] Furthermore, the die-casting device includes a lower die, two cylinders, an upper die, and a sealing cylinder.

[0016] The lower die is transversely arranged on the upper part of the workbench, the bottom of the lower die is fixedly connected to the top of the workbench, and the middle part of the lower die is communicated with the through groove in the middle part of the workbench.

[0017] The two cylinders are symmetrically arranged above the workbench, the two cylinders vertically penetrate the fixed seats respectively, the two cylinders are fixedly connected to the fixed seats respectively, and the telescopic ends of the two cylinders have a vertical telescopic direction.

[0018] The upper die is transversely arranged below the two cylinders, and the top of the upper die is fixedly connected to the telescopic ends of the two cylinders respectively.

[0019] The sealing cylinder is vertically arranged on the upper part of the workbench and is located in the through groove of the workbench. The sealing cylinder is vertically slidably connected with the through groove of the workbench, and the inner wall of the sealing cylinder is provided with four vertical sliding grooves.

[0020] When performing mold closing work, the staff controls the telescopic end of the cylinder to move downward through the controller, the telescopic end of the cylinder drives the upper mold to move downward, and the upper mold drives the connecting strip to move downward. When the upper mold moves down to close the mold with the lower mold, the staff closes the cylinder through the controller.

[0021] When demoulding is required, the staff controls the telescopic end of the cylinder to rise through the controller, the telescopic end of the cylinder drives the upper mold to rise, the upper mold drives the connecting strip to rise, and the upper mold is separated from the casting.

[0022] Furthermore, the through groove in the middle of the workbench is inverted convex, the bottom of the sealing cylinder also has a convex portion, and when the sealing cylinder is completely in the inverted convex through groove, the top of the sealing cylinder and the bottom of the lower mold are in the same horizontal plane.

[0023] The top of the sealing cylinder is at the same level as the bottom inner wall of the lower mold to prevent affecting the shape of the casting.

[0024] Furthermore, an injection hole is provided in the upper mold.

[0025] After closing the mold, the staff injects material into the injection hole.

[0026] Furthermore, the spiral ejection device includes a first rotating shaft, two first gears, two connecting bars, two first racks, a first bevel gear, a first threaded rod, a second bevel gear, a first spiral column, a first telescopic rod, a first spring, a ejector rod, an ejection plate, four round rods, four first sliders, four second springs, four connecting rods, and four second sliders.

[0027] The first rotating shaft is transversely arranged at the lower part of the workbench, the first rotating shaft transversely penetrates the workbench and passes through the cavity at the lower part of the workbench, the axis of the first rotating shaft is transverse, and the first rotating shaft is rotatably connected with the workbench.

[0028] The two first gears are vertically symmetrically arranged above the base and are respectively sleeved on the outside of the first rotating shaft. The axes of the two first gears coincide with the axes of the first rotating shaft respectively, and the two first gears are respectively fixedly connected to the first rotating shaft.

[0029] The two connecting bars are vertically symmetrically arranged below the upper mold, and the two connecting bars vertically penetrate the base respectively. The tops of the two connecting bars are fixedly connected to the upper mold respectively, and the two connecting bars are vertically slidably connected to the base respectively.

[0030] The two first racks are vertically symmetrically arranged in front of the two connecting bars and are respectively located behind the two first gears. The two first racks are respectively fixedly connected to the two connecting bars and are respectively meshed with the two first gears.

[0031] The first bevel gear is vertically arranged in the lower cavity of the workbench and sleeved on the outer side of the first rotating shaft. The axis of the first bevel gear coincides with the axis of the first rotating shaft, and the first bevel gear is fixedly connected to the first rotating shaft.

[0032] The first threaded rod is vertically arranged inside the workbench, above the first bevel gear, and vertically penetrates the inner wall of the workbench. The axis of the first threaded rod is vertical, and the first threaded rod is rotatably connected to the workbench. The portion of the first threaded rod in the through groove has threads, and the portion in the cavity has no threads.

[0033] The second bevel gear is transversely arranged in the lower cavity of the workbench and sleeved on the outer side of the first threaded rod. The axis of the second bevel gear coincides with the axis of the first threaded rod. The second bevel gear is fixedly connected to the first threaded rod and meshes with the first bevel gear.

[0034] The first spiral column is vertically arranged in the through groove of the workbench, is located at the lower part of the sealing cylinder, and is sleeved on the outer side of the first threaded rod. The first spiral column is threadedly connected to the first threaded rod, and the upper part of the first spiral column has a groove.

[0035] The first telescopic rod is vertically arranged in the upper groove of the first spiral column, and the bottom of the first telescopic rod is fixedly connected to the first spiral column.

[0036] The first spring is vertically arranged in the upper groove of the first spiral column and sleeved on the outer side of the first telescopic rod. The bottom end of the first spring is fixedly connected to the first spiral column.

[0037] The top rod is vertically arranged on the upper part of the first spiral column, the lower part of the top rod is in the groove of the first spiral column, the bottom of the top rod is fixedly connected to the first telescopic rod and the top of the first spring, and the top rod is vertically slidably connected to the groove of the first spiral column.

[0038] The ejector plate is transversely arranged inside the sealing cylinder, the bottom of the ejector plate is fixedly connected to the top of the ejector rod, and four sliding grooves are arranged around the bottom of the ejector plate.

[0039] The four round rods are transversely arranged inside the sealing cylinder and are respectively arranged in the four sliding grooves of the ejection plate. The four round rods are respectively fixedly connected to the ejection plate.

[0040] The four first sliding blocks are arranged inside the sealing cylinder, respectively arranged in the four sliding grooves of the ejection plate, and respectively sleeved on the outsides of the four round rods. The four first sliding blocks are respectively connected to the four round rods in a transverse sliding manner.

[0041] The four second springs are arranged inside the sealing cylinder, respectively arranged in the four slide grooves of the ejection plate, and respectively arranged on the sides away from the four first sliders, and respectively sleeved on the outside of the four round rods. One ends of the four second springs are respectively fixedly connected to the four first sliders, and the other ends are respectively fixedly connected to the inner wall of the ejection plate.

[0042] Four connecting rods are arranged at the lower part of the sealing cylinder and are respectively arranged on the outer side of the first spiral column. One end of the four connecting rods is respectively hinged to the first spiral column, and the other end is respectively hinged to the four first sliding blocks, and the hinge direction is horizontal.

[0043] The four second sliding blocks are respectively arranged in four vertical sliding grooves of the sealing cylinder, the four second sliding blocks are respectively fixedly connected to the ejection plate, and the four second sliding blocks are respectively vertically slidably connected to the inner wall of the sealing cylinder.

[0044] When the upper mold drives the connecting strip to move downward, the connecting strip drives the second rack to move downward, drives the first rack to move downward, the first rack drives the first gear to rotate forward, the first gear drives the first rotating shaft to rotate forward, the first rotating shaft drives the first bevel gear to rotate forward, the first bevel gear drives the second bevel gear to rotate forward, the second bevel gear drives the first threaded rod to rotate forward, the first threaded rod rotates forward to cause the first spiral column to move downward, the first spiral column drives the connecting rod and the ejector rod to move downward, the connecting rod and the ejector rod drive the ejector plate to move downward, the ejector plate drives the sealing cylinder to move downward, after the sealing cylinder moves down and completely falls into the through groove of the workbench, the ejector plate continues to move downward in the sealing cylinder, and when the upper mold and the lower mold are completed, the bottom of the ejector plate is just attached to the bottom protrusion of the sealing cylinder.

[0045] When the casting needs to be ejected, the connecting bar drives the first rack to rise, the first rack drives the first gear to rotate in the opposite direction, the first gear drives the first rotating shaft to rotate in the opposite direction, the first rotating shaft drives the first bevel gear to rotate in the opposite direction, the first bevel gear drives the second bevel gear to rotate in the opposite direction, the second bevel gear drives the first threaded rod to rotate in the opposite direction, the reverse rotation of the first threaded rod causes the first spiral column to rise, the first spiral column drives the ejector rod and the connecting rod to rise, and the ejector rod and the connecting rod drive the ejector plate to rise in the sealing cylinder.

[0046] When the top of the ejector plate fits against the inner wall of the top of the sealing cylinder, the first spiral column squeezes the first spring, the first spring contracts, and then the first spiral column moves upward, driving the four connecting rods to move upward and spread, and the four connecting rods drive the four sliders to squeeze the second spring, and then adjust the position of the four connecting rods for transmitting the ejection force, so that the ejection force generated by the upward movement of the first spiral column is evenly transmitted to the ejector plate through the ejector rod and the four connecting rods, and the ejector plate evenly transmits the ejection force to the sealing cylinder, and then the casting is evenly subjected to the ejection force and ejected, preventing the casting from being subjected to excessive force locally, causing deformation and other problems, and affecting the dimensional accuracy of the casting. Finally, the staff can take out the casting with tools.

[0047] Furthermore, the ejector plate is made of a high temperature resistant material.

[0048] Further protect the components inside the ejector plate from being affected by high temperatures.

[0049] Furthermore, the four second sliding blocks are fixedly connected to the ejection plate by welding.

[0050] This allows the ejector plate to slide up and down stably in the sealing cylinder.

[0051] Furthermore, two cooling devices are provided, each of which includes a cylinder body, a piston, a second spiral column, a second threaded rod, a second gear, a second rack, an L-shaped nozzle, a first pipeline, and a second pipeline.

[0052] The cylinder body is transversely arranged in the upper cavity of the workbench, and the cylinder body is fixedly connected to the inner wall of the workbench.

[0053] The piston is vertically arranged inside the cylinder body, and the piston is horizontally slidably connected to the inner wall of the cylinder body.

[0054] The second spiral column is transversely arranged on the side of the cylinder body away from the sealing cylinder, and one end of the second spiral column is fixedly connected to the piston.

[0055] The second threaded rod is transversely arranged on the side of the cylinder body away from the sealing tube, the second threaded rod transversely penetrates the inner wall of the workbench, the axis of the second threaded rod is parallel to the axis of the first rotating shaft, the second threaded rod is rotatably connected to the workbench, the part of the second threaded rod in the cavity is threaded, and the part outside the workbench is not threaded.

[0056] The second gear is vertically arranged on the outside of the workbench, in front of the connecting strip, and sleeved on the outside of the second threaded rod. The axis of the second gear coincides with the axis of the second threaded rod, and the second gear is fixedly connected to the second threaded rod.

[0057] The second rack is vertically arranged on the front side of the connecting bar and on the rear side of the second gear. The second rack is fixedly connected to the connecting bar.

[0058] The L-shaped nozzle is transversely arranged above the workbench and is located on the side of the lower mold. The L-shaped nozzle is fixedly connected to the workbench.

[0059] The first pipeline is arranged inside the workbench and is located at the upper part of the cylinder body. One end of the first pipeline is communicated with the side of the cylinder body close to the sealing cylinder, and the other end is communicated with the L-shaped nozzle.

[0060] The second pipe is arranged inside the workbench and is located at the lower part of the cylinder body. One end of the second pipe is communicated with the side of the cylinder body close to the sealing cylinder, and the other end is connected to the refrigeration box.

[0061] It should be noted that the first rack on the connecting bar is always in meshing state with the first gear, and the second rack needs to be moved down a certain distance before it meshes with the second gear, that is, when the sealing cylinder moves down and completely falls into the through groove of the workbench, the second rack meshes with the second gear.

[0062] Therefore, when the connecting bar drives the second rack to move downward to engage with the second gear, the second rack drives the second gear to rotate forward, the second gear drives the second threaded rod to rotate forward, the second threaded rod drives the forward rotation to make the second spiral column move away from the sealing cylinder, the second spiral column drives the piston away from the sealing cylinder, and the piston drives the cold air in the external refrigeration box into the cylinder body through the second pipe.

[0063] When the upper mold drives the connecting bar to rise, the connecting bar drives the second rack to rise, the second rack drives the second gear to rotate in the opposite direction, the second gear drives the second threaded rod to rotate in the opposite direction, the second threaded rod rotates in the opposite direction so that the second spiral column approaches the sealing cylinder, the second spiral column drives the piston to approach the sealing cylinder, the piston pushes the cold air in the cylinder body through the first pipe into the L-shaped nozzle, and then sprays to the lower mold from several nozzles of the L-shaped nozzle, further cooling the lower mold and the casting, reducing the adhesion between the casting and the lower mold, and reducing the resistance to ejecting the casting.

[0064] Furthermore, a plurality of nozzles are evenly distributed on the side of the L-shaped nozzle close to the lower mold.

[0065] This allows the cold air to be sprayed evenly onto the lower mold and casting.

[0066] Furthermore, one-way valves are provided inside the first pipeline and the second pipeline.

[0067] Prevent cold air from flowing back.

[0068] Beneficial effects of the present invention: 1. The present invention arranges a first spiral column, a push rod, an ejector plate, a sealing cylinder, four connecting rods and other structures. With the cooperation of the push rod, four connecting rods, a first slider, a second spring and other structures, when the ejector plate drives the top of the sealing cylinder to eject the casting, the ejection force transmitted by the ejector plate to the top of the sealing cylinder is evenly distributed, thereby ensuring the ejection effect and stability, thereby preventing the casting from being deformed during the ejection process and affecting the dimensional accuracy of the casting. In addition, during the die-casting process, since there is a certain space between the ejector plate and the top of the sealing cylinder, it can prevent the components inside the ejector plate from being damaged by the heat transmitted from the sealing cylinder for a long time.

[0069] 2. The present invention provides a cylinder body, a piston, a second spiral column, a second gear and other structures. In the process from the ejection plate starting to rise to the inner wall at the top of the sealing cylinder, the cold air stored in the cylinder body is sprayed toward the lower mold, thereby further cooling the lower mold and the casting, reducing the adhesion force between the casting and the lower mold, and thus reducing the resistance when the casting is ejected. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] Figure 1 This is a schematic diagram of the cross-sectional structure of the unloading ejection device used in the die-casting mold for automobile parts before the mold is closed; Figure 2 This is a schematic diagram of the cross-sectional structure of the unloading and ejecting device used in the die-casting mold for automobile parts after the mold is closed; Figure 3 The utility model is an enlarged cross-sectional structural schematic diagram of a spiral ejection device of a discharge ejection device used in a die-casting mold for automobile parts.

[0071] Explanation of the reference numerals: 1. base; 2. support column; 3. fixed seat; 4. workbench; 5. lower mold; 6. cylinder; 7. upper mold; 8. sealing cylinder; 9. first rotating shaft; 10. first gear; 11. connecting strip; 12. first rack; 13. first bevel gear; 14. first threaded rod; 15. second bevel gear; 16. first spiral column; 17. first telescopic rod; 18. first spring; 19. ejector rod; 20. ejector plate; 21. round rod; 22. first slider; 23. second spring; 24. connecting rod; 25. second slider; 26. cylinder body; 27. piston; 28. second spiral column; 29. ​​second threaded rod; 30. second gear; 31. second rack; 32. L-shaped nozzle; 33. first pipeline; 34. second pipeline; 35. controller. DETAILED DESCRIPTION

[0072] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0073] like Figure 1-3 As shown, the technical solution adopted by the present invention to solve its technical problem is: A discharge ejection device for a die-casting mold of automobile parts comprises a base 1, four support columns 2, a fixing seat 3, a workbench 4, a die-casting device, a spiral ejection device, two cooling devices, and a controller 35.

[0074] The base 1 is arranged horizontally and connected to the ground through four columns.

[0075] Four support columns 2 are vertically disposed above the base 1 and arranged in a square shape, and the bottoms of the four support columns 2 are fixedly connected to the top of the base 1 respectively.

[0076] The fixing seat 3 is transversely arranged above the four supporting columns 2 , and the top of the fixing seat 3 is fixedly connected to the top of the four supporting columns 2 respectively.

[0077] The workbench 4 is arranged above the base 1 and between the four support columns 2. The bottom of the workbench 4 is fixedly connected to the top of the base 1. There is a through groove in the middle of the workbench 4, and there is a cavity inside the workbench 4.

[0078] The die-casting device is arranged on the upper part of the workbench 4 , and the die-casting device is connected to the fixing seat 3 and the workbench 4 .

[0079] The spiral ejector device is arranged at the lower part of the fixed seat 3, and is connected to the fixed seat 3, connected to the workbench 4, and connected to the die-casting device.

[0080] Two cooling devices are symmetrically arranged on the upper part of the workbench 4 , and the two cooling devices are respectively connected to the workbench 4 and respectively connected to the spiral ejection device.

[0081] The controller 35 is disposed at the front of the fixing seat 3 , the controller 35 is fixedly connected to the fixing seat 3 , and the controller 35 is electrically connected to the die-casting device.

[0082] When using this equipment, the staff controls the die-casting device to close the mold through the controller 35, and then injects material into the die-casting device in the closed mold. After the casting is cooled and formed, the staff controls the die-casting device to demold through the controller 35, the cooling device to cool the casting, and the spiral ejection device to eject the casting, and then the casting is taken out.

[0083] The die-casting device includes a lower die 5 , two cylinders 6 , an upper die 7 , and a sealing cylinder 8 .

[0084] The lower die 5 is transversely arranged on the upper part of the workbench 4 , the bottom of the lower die 5 is fixedly connected to the top of the workbench 4 , and the middle of the lower die 5 is communicated with the through groove in the middle of the workbench 4 .

[0085] The two cylinders 6 are symmetrically arranged above the workbench 4 , and the two cylinders 6 vertically penetrate the fixing base 3 respectively. The two cylinders 6 are fixedly connected to the fixing base 3 respectively, and the telescopic ends of the two cylinders 6 have a vertical telescopic direction.

[0086] The upper die 7 is transversely arranged below the two cylinders 6 , and the top of the upper die 7 is fixedly connected to the telescopic ends of the two cylinders 6 .

[0087] The sealing cylinder 8 is vertically arranged on the upper part of the workbench 4 and is located in the through groove of the workbench 4. The sealing cylinder 8 is vertically slidably connected with the through groove of the workbench 4, and the inner wall of the sealing cylinder 8 has four vertical sliding grooves.

[0088] When performing the mold closing operation, the staff controls the telescopic end of the cylinder 6 to move downward through the controller 35, and the telescopic end of the cylinder 6 drives the upper mold 7 to move downward, and the upper mold 7 drives the connecting strip 11 to move downward. When the upper mold 7 moves down to close the mold with the lower mold 5, the staff closes the cylinder 6 through the controller 35.

[0089] When demoulding is required, the staff controls the telescopic end of the cylinder 6 to rise through the controller 35, and the telescopic end of the cylinder 6 drives the upper mold 7 to rise, and the upper mold 7 drives the connecting strip 11 to rise, and the upper mold 7 is separated from the casting.

[0090] The through groove in the middle of the workbench 4 is inverted convex shape, and the bottom of the sealing cylinder 8 also has a convex portion. When the sealing cylinder 8 is completely in the inverted convex through groove, the top of the sealing cylinder 8 and the bottom of the lower mold 5 are in the same horizontal plane.

[0091] The top of the sealing cylinder 8 is at the same level as the bottom inner wall of the lower mold 5 to prevent affecting the shape of the casting.

[0092] The upper mold 7 has a material injection hole.

[0093] After closing the mold, the staff injects material into the injection hole.

[0094] The spiral ejection device includes a first rotating shaft 9, two first gears 10, two connecting bars 11, two first racks 12, a first bevel gear 13, a first threaded rod 14, a second bevel gear 15, a first spiral column 16, a first telescopic rod 17, a first spring 18, a ejector rod 19, an ejection plate 20, four round rods 21, four first sliders 22, four second springs 23, four connecting rods 24, and four second sliders 25.

[0095] The first rotating shaft 9 is transversely arranged at the lower part of the workbench 4 , and the first rotating shaft 9 transversely penetrates the workbench 4 and passes through the cavity at the lower part of the workbench 4 . The axis of the first rotating shaft 9 is transverse, and the first rotating shaft 9 is rotatably connected to the workbench 4 .

[0096] The two first gears 10 are vertically symmetrically arranged above the base 1 and are respectively sleeved on the outside of the first rotating shaft 9 . The axes of the two first gears 10 coincide with the axes of the first rotating shaft 9 , and the two first gears 10 are fixedly connected to the first rotating shaft 9 .

[0097] The two connecting strips 11 are vertically symmetrically arranged below the upper mold 7 . The two connecting strips 11 vertically penetrate the base 1 respectively. The tops of the two connecting strips 11 are fixedly connected to the upper mold 7 respectively, and the two connecting strips 11 are vertically slidably connected to the base 1 respectively.

[0098] The two first racks 12 are vertically symmetrically arranged in front of the two connecting bars 11 and are respectively located behind the two first gears 10 . The two first racks 12 are respectively fixedly connected to the two connecting bars 11 and are respectively meshed with the two first gears 10 .

[0099] The first bevel gear 13 is vertically arranged in the lower cavity of the workbench 4 and sleeved on the outer side of the first rotating shaft 9 . The axis of the first bevel gear 13 coincides with the axis of the first rotating shaft 9 . The first bevel gear 13 is fixedly connected to the first rotating shaft 9 .

[0100] The first threaded rod 14 is vertically arranged inside the workbench 4 and is above the first bevel gear 13. The first threaded rod 14 vertically penetrates the inner wall of the workbench 4. The axis of the first threaded rod 14 is vertical. The first threaded rod 14 is rotatably connected to the workbench 4. The portion of the first threaded rod 14 in the through groove has threads, and the portion in the cavity has no threads.

[0101] The second bevel gear 15 is transversely arranged in the lower cavity of the workbench 4 and sleeved on the outer side of the first threaded rod 14 . The axis of the second bevel gear 15 coincides with the axis of the first threaded rod 14 . The second bevel gear 15 is fixedly connected to the first threaded rod 14 and meshes with the first bevel gear 13 .

[0102] The first spiral column 16 is vertically arranged in the through groove of the workbench 4, is located at the lower part of the sealing cylinder 8, and is sleeved on the outer side of the first threaded rod 14. The first spiral column 16 is threadedly connected to the first threaded rod 14, and the upper part of the first spiral column 16 has a groove.

[0103] The first telescopic rod 17 is vertically arranged in the upper groove of the first spiral column 16 , and the bottom of the first telescopic rod 17 is fixedly connected to the first spiral column 16 .

[0104] The first spring 18 is vertically arranged in the upper groove of the first spiral column 16 , and is sleeved on the outer side of the first telescopic rod 17 . The bottom end of the first spring 18 is fixedly connected to the first spiral column 16 .

[0105] The top rod 19 is vertically arranged on the upper part of the first spiral column 16, and the lower part of the top rod 19 is in the groove of the first spiral column 16. The bottom of the top rod 19 is fixedly connected to the top of the first telescopic rod 17 and the first spring 18, and the top rod 19 is vertically slidably connected to the groove of the first spiral column 16.

[0106] The ejector plate 20 is transversely arranged inside the sealing tube 8 , the bottom of the ejector plate 20 is fixedly connected to the top of the ejector rod 19 , and four sliding grooves are arranged around the bottom of the ejector plate 20 .

[0107] The four round rods 21 are transversely arranged inside the sealing tube 8 and are respectively arranged in the four slide grooves of the ejection plate 20 . The four round rods 21 are respectively fixedly connected to the ejection plate 20 .

[0108] The four first slide blocks 22 are disposed inside the sealing cylinder 8 , respectively disposed in the four slide grooves of the ejection plate 20 , and respectively sleeved on the outside of the four round rods 21 . The four first slide blocks 22 are respectively connected to the four round rods 21 in a transverse sliding manner.

[0109] The four second springs 23 are arranged inside the sealing tube 8, respectively arranged in the four slide grooves of the ejection plate 20, and respectively arranged on the sides away from the four first sliders 22, and respectively sleeved on the outside of the four round rods 21. One ends of the four second springs 23 are respectively fixedly connected to the four first sliders 22, and the other ends are respectively fixedly connected to the inner wall of the ejection plate 20.

[0110] Four connecting rods 24 are arranged at the lower part of the sealing cylinder 8 and respectively arranged on the outer side of the first spiral column 16. One end of the four connecting rods 24 is respectively hinged to the first spiral column 16, and the other end is respectively hinged to the four first sliders 22, and the hinge direction is horizontal.

[0111] The four second slide blocks 25 are respectively disposed in four vertical slide grooves of the sealing cylinder 8 , the four second slide blocks 25 are respectively fixedly connected to the ejection plate 20 , and the four second slide blocks 25 are respectively vertically slidably connected to the inner wall of the sealing cylinder 8 .

[0112] When the upper mold 7 drives the connecting bar 11 to move downward, the connecting bar 11 drives the second rack 31 to move downward, drives the first rack 12 to move downward, the first rack 12 drives the first gear 10 to rotate forward, the first gear 10 drives the first rotating shaft 9 to rotate forward, the first rotating shaft 9 drives the first bevel gear 13 to rotate forward, the first bevel gear 13 drives the second bevel gear 15 to rotate forward, the second bevel gear 15 drives the first threaded rod 14 to rotate forward, the first threaded rod 14 rotates forward to make the first spiral column 16 move downward, the first spiral column 16 drives the connecting rod 24 and the ejector rod 19 to move downward, the connecting rod 24 and the ejector rod 19 drive the ejector plate 20 to move downward, the ejector plate 20 drives the sealing cylinder 8 to move downward, after the sealing cylinder 8 moves down to completely fall into the through groove of the workbench 4, the ejector plate 20 continues to move downward in the sealing cylinder 8, and when the upper mold 7 and the lower mold 5 are completed, the bottom of the ejector plate 20 is just attached to the bottom protrusion of the sealing cylinder 8.

[0113] When the casting needs to be ejected, the connecting bar 11 drives the first rack 12 to rise, the first rack 12 drives the first gear 10 to rotate in the opposite direction, the first gear 10 drives the first rotating shaft 9 to rotate in the opposite direction, the first rotating shaft 9 drives the first bevel gear 13 to rotate in the opposite direction, the first bevel gear 13 drives the second bevel gear 15 to rotate in the opposite direction, the second bevel gear 15 drives the first threaded rod 14 to rotate in the opposite direction, the first threaded rod 14 rotates in the opposite direction to make the first spiral column 16 rise, the first spiral column 16 drives the ejector rod 19 and the connecting rod 24 to rise, the ejector rod 19 and the connecting rod 24 drive the ejection plate 20 to rise in the sealing tube 8.

[0114] When the top of the ejector plate 20 fits against the inner wall of the top of the sealing tube 8, the first spiral column 16 squeezes the first spring 18, the first spring 18 contracts, and then the first spiral column 16 moves upward, driving the four connecting rods 24 to move upward and spread, and the four connecting rods 24 drive the four sliders to squeeze the second spring 23, and then adjust the position of the four connecting rods 24 for transmitting the ejection force, so that the ejection force generated by the upward movement of the first spiral column 16 is evenly transmitted to the ejector plate 20 through the ejector rod 19 and the four connecting rods 24, and the ejector plate 20 evenly transmits the ejection force to the sealing tube 8, and then the casting is evenly subjected to the ejection force and ejected, preventing the casting from being subjected to excessive force locally, causing deformation and other problems, and affecting the dimensional accuracy of the casting. Finally, the staff can remove the casting with tools.

[0115] The ejector plate 20 is made of a high temperature resistant material.

[0116] The components inside the ejector plate 20 are further protected from being affected by high temperatures.

[0117] The four second sliding blocks 25 are fixedly connected to the ejection plate 20 by welding.

[0118] This enables the ejector plate 20 to stably slide up and down in the sealing tube 8 .

[0119] Two cooling devices, each of which includes a cylinder 26, a piston 27, a second spiral column 28, a second threaded rod 29, a second gear 30, a second rack 31, an L-shaped nozzle 32, a first pipeline 33, and a second pipeline 34.

[0120] The cylinder body 26 is transversely disposed in the upper cavity of the workbench 4 , and the cylinder body 26 is fixedly connected to the inner wall of the workbench 4 .

[0121] The piston 27 is vertically disposed inside the cylinder body 26 , and the piston 27 is laterally slidably connected to the inner wall of the cylinder body 26 .

[0122] The second spiral column 28 is transversely arranged on the side of the cylinder body 26 away from the sealing cylinder 8 , and one end of the second spiral column 28 is fixedly connected to the piston 27 .

[0123] The second threaded rod 29 is transversely arranged on the side of the cylinder body 26 away from the sealing tube 8. The second threaded rod 29 transversely penetrates the inner wall of the workbench 4. The axis of the second threaded rod 29 is parallel to the axis of the first rotating shaft 9. The second threaded rod 29 is rotatably connected to the workbench 4. The part of the second threaded rod 29 in the cavity is threaded, and the part outside the workbench 4 is not threaded.

[0124] The second gear 30 is vertically arranged on the outside of the workbench 4, in front of the connecting strip 11, and sleeved on the outside of the second threaded rod 29. The axis of the second gear 30 coincides with the axis of the second threaded rod 29, and the second gear 30 is fixedly connected to the second threaded rod 29.

[0125] The second rack 31 is vertically disposed on the front side of the connecting bar 11 and is located on the rear side of the second gear 30 . The second rack 31 is fixedly connected to the connecting bar 11 .

[0126] The L-shaped nozzle 32 is transversely disposed above the workbench 4 and is located on the side of the lower mold 5 . The L-shaped nozzle 32 is fixedly connected to the workbench 4 .

[0127] The first pipe 33 is disposed inside the workbench 4 and is located at the upper part of the cylinder body 26 . One end of the first pipe 33 is connected to the side of the cylinder body 26 close to the sealing tube 8 , and the other end is connected to the L-shaped nozzle 32 .

[0128] The second pipe 34 is disposed inside the workbench 4 and is located at the lower part of the cylinder body 26. One end of the second pipe 34 is connected to the side of the cylinder body 26 close to the sealing tube 8, and the other end is externally connected to the refrigeration box.

[0129] It should be noted that the first rack 12 on the connecting bar 11 is always in meshing state with the first gear 10, and the second rack 31 is meshing with the second gear 30 only after the connecting bar 11 moves down a certain distance, that is, when the sealing tube 8 moves down to completely fall into the through groove of the workbench 4, the second rack 31 is meshing with the second gear 30.

[0130] Therefore, when the connecting bar 11 drives the second rack 31 to move downward to engage with the second gear 30, the second rack 31 drives the second gear 30 to rotate forward, the second gear 30 drives the second threaded rod 29 to rotate forward, the second threaded rod 29 drives the forward rotation to make the second spiral column 28 move away from the sealing cylinder 8, the second spiral column 28 drives the piston 27 away from the sealing cylinder 8, and the piston 27 drives the cold air in the external refrigeration box to enter the cylinder body 26 through the second pipe 34.

[0131] When the upper mold 7 drives the connecting bar 11 to rise, the connecting bar 11 drives the second rack 31 to rise, the second rack 31 drives the second gear 30 to rotate in the opposite direction, the second gear 30 drives the second threaded rod 29 to rotate in the opposite direction, the second threaded rod 29 rotates in the opposite direction so that the second spiral column 28 is close to the sealing cylinder 8, the second spiral column 28 drives the piston 27 to be close to the sealing cylinder 8, the piston 27 pushes the cold air in the cylinder body 26 through the first pipe 33 into the L-shaped nozzle 32, and then sprays to the lower mold 5 from several nozzles of the L-shaped nozzle 32, so as to further cool the lower mold 5 and the casting, reduce the adhesion between the casting and the lower mold 5, and reduce the resistance to ejecting the casting.

[0132] The L-shaped nozzle 32 has a plurality of nozzles evenly distributed on the side close to the lower mold 5 .

[0133] This allows the cold air to be sprayed evenly onto the lower mold 5 and the casting.

[0134] Both the first pipeline 33 and the second pipeline 34 have one-way valves inside.

[0135] Prevent cold air from flowing back.

[0136] Working principle: When using this equipment, it is necessary to perform mold closing work first. The staff controls the telescopic end of the cylinder 6 to move downward through the controller 35. The telescopic end of the cylinder 6 drives the upper mold 7 to move downward, and the upper mold 7 drives the connecting strip 11 to move downward. When the upper mold 7 moves down to close the mold with the lower mold 5, the staff closes the cylinder 6 through the controller 35.

[0137] When the upper mold 7 drives the connecting bar 11 to move downward, the connecting bar 11 drives the second rack 31 to move downward, drives the first rack 12 to move downward, the first rack 12 drives the first gear 10 to rotate forward, the first gear 10 drives the first rotating shaft 9 to rotate forward, the first rotating shaft 9 drives the first bevel gear 13 to rotate forward, the first bevel gear 13 drives the second bevel gear 15 to rotate forward, the second bevel gear 15 drives the first threaded rod 14 to rotate forward, the first threaded rod 14 rotates forward to make the first spiral column 16 move downward, the first spiral column 16 drives the connecting rod 24 and the ejector rod 19 to move downward, the connecting rod 24 and the ejector rod 19 drive the ejector plate 20 to move downward, the ejector plate 20 drives the sealing cylinder 8 to move downward, after the sealing cylinder 8 moves down to completely fall into the through groove of the workbench 4, the ejector plate 20 continues to move downward in the sealing cylinder 8, and when the upper mold 7 and the lower mold 5 are completed, the bottom of the ejector plate 20 is just attached to the bottom protrusion of the sealing cylinder 8.

[0138] It should be noted that the first rack 12 on the connecting bar 11 is always in meshing state with the first gear 10, and the second rack 31 is meshing with the second gear 30 only after the connecting bar 11 moves down a certain distance, that is, when the sealing tube 8 moves down to completely fall into the through groove of the workbench 4, the second rack 31 is meshing with the second gear 30.

[0139] Therefore, when the connecting bar 11 drives the second rack 31 to move downward to engage with the second gear 30, the second rack 31 drives the second gear 30 to rotate forward, the second gear 30 drives the second threaded rod 29 to rotate forward, the second threaded rod 29 drives the forward rotation to make the second spiral column 28 move away from the sealing cylinder 8, the second spiral column 28 drives the piston 27 away from the sealing cylinder 8, and the piston 27 drives the cold air in the external refrigeration box to pass through the second pipe 34 and the one-way valve in sequence into the cylinder body 26.

[0140] After the upper mold 7 and the lower mold 5 are closed, the staff uses the injection mechanism to inject material through the injection hole of the upper mold 7. After the casting cools down for a period of time, the unloading and ejection work can be carried out.

[0141] When the material is unloaded and ejected, the staff controls the telescopic end of the cylinder 6 to rise through the controller 35, and the telescopic end of the cylinder 6 drives the upper mold 7 to rise, and the upper mold 7 drives the connecting strip 11 to rise, and the upper mold 7 is separated from the casting.

[0142] When the upper mold 7 drives the connecting bar 11 to rise, the connecting bar 11 drives the first rack 12 to rise, drives the second rack 31 to rise, the second rack 31 drives the second gear 30 to rotate in the opposite direction, the second gear 30 drives the second threaded rod 29 to rotate in the opposite direction, the second threaded rod 29 rotates in the opposite direction so that the second spiral column 28 is close to the sealing cylinder 8, the second spiral column 28 drives the piston 27 to be close to the sealing cylinder 8, the piston 27 pushes the cold air in the cylinder body 26 to pass through the one-way valve and the first pipe 33 into the L-shaped nozzle 32 in sequence, and then sprays to the lower mold 5 from several nozzles of the L-shaped nozzle 32, so as to further cool the lower mold 5 and the casting, reduce the adhesion force between the casting and the lower mold 5, and reduce the resistance to ejecting the casting.

[0143] When the connecting bar 11 drives the first rack 12 to rise, the first rack 12 drives the first gear 10 to rotate in the opposite direction, the first gear 10 drives the first rotating shaft 9 to rotate in the opposite direction, the first rotating shaft 9 drives the first bevel gear 13 to rotate in the opposite direction, the first bevel gear 13 drives the second bevel gear 15 to rotate in the opposite direction, the second bevel gear 15 drives the first threaded rod 14 to rotate in the opposite direction, the first threaded rod 14 rotates in the opposite direction to make the first spiral column 16 rise, the first spiral column 16 drives the ejector rod 19 and the connecting rod 24 to rise, the ejector rod 19 and the connecting rod 24 drive the ejector plate 20 to rise in the sealing tube 8.

[0144] When the top of the ejector plate 20 fits against the inner wall of the top of the sealing tube 8, the first spiral column 16 squeezes the first spring 18, the first spring 18 contracts, and then the first spiral column 16 moves upward, driving the four connecting rods 24 to move upward and spread, and the four connecting rods 24 drive the four sliders to squeeze the second spring 23, and then adjust the position of the four connecting rods 24 for transmitting the ejection force, so that the ejection force generated by the upward movement of the first spiral column 16 is evenly transmitted to the ejector plate 20 through the ejector rod 19 and the four connecting rods 24, and the ejector plate 20 evenly transmits the ejection force to the top of the sealing tube 8, and then ejects the casting, ensuring the ejection effect and stability, and then preventing the casting from being subjected to excessive force locally, causing deformation and other problems, affecting the dimensional accuracy of the casting, and finally the staff can take out the casting through tools.

[0145] The above embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work shall all fall within the scope of protection of the present invention.

Claims

1. A discharge ejection device for a die-casting mold of automobile parts, characterized in that: It comprises a base (1), four support columns (2), a fixing seat (3), a workbench (4), a die-casting device, a spiral ejection device, two cooling devices, and a controller (35); The base (1) is arranged horizontally and connected to the ground via four columns; The four support columns (2) are vertically arranged above the base (1) and arranged in a square shape, and the bottoms of the four support columns (2) are respectively fixedly connected to the top of the base (1); The fixing seat (3) is transversely arranged above the four supporting columns (2), and the top of the fixing seat (3) is respectively fixedly connected to the tops of the four supporting columns (2); The workbench (4) is arranged above the base (1) and between the four support columns (2); the bottom of the workbench (4) is fixedly connected to the top of the base (1); a through groove is provided in the middle of the workbench (4), and a cavity is provided inside the workbench (4); The die-casting device is arranged on the upper part of the workbench (4), and the die-casting device is connected to the fixing seat (3) and the workbench (4); The spiral ejection device is arranged at the lower part of the fixed seat (3), and the spiral ejection device is connected to the fixed seat (3), connected to the workbench (4), and connected to the die-casting device; The two cooling devices are symmetrically arranged on the upper part of the workbench (4), and the two cooling devices are respectively connected to the workbench (4) and respectively connected to the screw ejection device; The controller (35) is arranged at the front part of the fixing seat (3), the controller (35) is fixedly connected to the fixing seat (3), and the controller (35) is electrically connected to the die-casting device.

2. The unloading and ejecting device for die-casting molds of automobile parts according to claim 1 is characterized in that The die-casting device comprises a lower die (5), two cylinders (6), an upper die (7), and a sealing cylinder (8); The lower mold (5) is transversely arranged on the upper part of the workbench (4), the bottom of the lower mold (5) is fixedly connected to the top of the workbench (4) and the middle of the lower mold (5) is connected to the through groove in the middle of the workbench (4); The two cylinders (6) are symmetrically arranged above the workbench (4), the two cylinders (6) vertically penetrate the fixing seat (3) respectively, the two cylinders (6) are fixedly connected to the fixing seat (3) respectively, and the telescopic ends of the two cylinders (6) are telescopic in a vertical direction; The upper mold (7) is laterally arranged below the two cylinders (6), and the top of the upper mold (7) is fixedly connected to the telescopic ends of the two cylinders (6) respectively; The sealing cylinder (8) is vertically arranged on the upper part of the workbench (4) and is located in the through groove of the workbench (4). The sealing cylinder (8) is vertically slidably connected to the through groove of the workbench (4), and the inner wall of the sealing cylinder (8) has four vertical sliding grooves.

3. The unloading and ejecting device for die-casting molds of automobile parts according to claim 2, characterized in that The through groove in the middle of the workbench (4) is in an inverted convex shape, and the bottom of the sealing cylinder (8) also has a convex portion. When the sealing cylinder (8) is completely in the inverted convex through groove, the top of the sealing cylinder (8) and the bottom of the lower mold (5) are in the same horizontal plane.

4. The unloading and ejecting device for a die-casting mold for automobile parts according to claim 2, characterized in that The upper mold (7) is provided with an injection hole.

5. The unloading and ejecting device for a die-casting mold for automobile parts according to claim 2, characterized in that The spiral ejection device comprises a first rotating shaft (9), two first gears (10), two connecting bars (11), two first racks (12), a first bevel gear (13), a first threaded rod (14), a second bevel gear (15), a first spiral column (16), a first telescopic rod (17), a first spring (18), a ejector rod (19), an ejection plate (20), four round rods (21), four first sliders (22), four second springs (23), four connecting rods (24), and four second sliders (25); The first rotating shaft (9) is transversely arranged at the lower part of the workbench (4), the first rotating shaft (9) transversely penetrates the workbench (4) and passes through the cavity at the lower part of the workbench (4), the axis of the first rotating shaft (9) is transverse, and the first rotating shaft (9) is rotatably connected to the workbench (4); The two first gears (10) are vertically symmetrically arranged above the base (1), and are respectively sleeved on the outer side of the first rotating shaft (9); the axes of the two first gears (10) respectively coincide with the axis of the first rotating shaft (9); and the two first gears (10) are respectively fixedly connected to the first rotating shaft (9); The two connecting strips (11) are vertically symmetrically arranged below the upper mold (7), the two connecting strips (11) vertically penetrate the base (1) respectively, the tops of the two connecting strips (11) are respectively fixedly connected to the upper mold (7), and the two connecting strips (11) are respectively vertically slidably connected to the base (1); The two first racks (12) are vertically symmetrically arranged in front of the two connecting bars (11) and are respectively located behind the two first gears (10); the two first racks (12) are respectively fixedly connected to the two connecting bars (11) and are respectively meshed with the two first gears (10); The first bevel gear (13) is vertically arranged in the lower cavity of the workbench (4), and is sleeved on the outer side of the first rotating shaft (9). The axis of the first bevel gear (13) coincides with the axis of the first rotating shaft (9). The first bevel gear (13) is fixedly connected to the first rotating shaft (9). The first threaded rod (14) is vertically arranged inside the workbench (4) and above the first bevel gear (13); the first threaded rod (14) vertically penetrates the inner wall of the workbench (4); the axis of the first threaded rod (14) is vertical; the first threaded rod (14) is rotatably connected to the workbench (4); the portion of the first threaded rod (14) in the through groove has threads, and the portion in the cavity has no threads; The second bevel gear (15) is transversely arranged in the lower cavity of the workbench (4), and is sleeved on the outer side of the first threaded rod (14). The axis of the second bevel gear (15) coincides with the axis of the first threaded rod (14). The second bevel gear (15) is fixedly connected to the first threaded rod (14) and meshes with the first bevel gear (13). The first spiral column (16) is vertically arranged in the through groove of the workbench (4), is located at the lower part of the sealing cylinder (8), and is sleeved on the outer side of the first threaded rod (14). The first spiral column (16) is threadedly connected to the first threaded rod (14), and the upper part of the first spiral column (16) has a groove; The first telescopic rod (17) is vertically arranged in the upper groove of the first spiral column (16), and the bottom of the first telescopic rod (17) is fixedly connected to the first spiral column (16); The first spring (18) is vertically arranged in the upper groove of the first spiral column (16), and is sleeved on the outer side of the first telescopic rod (17), and the bottom end of the first spring (18) is fixedly connected to the first spiral column (16); The push rod (19) is vertically arranged on the upper part of the first spiral column (16), the lower part of the push rod (19) is located in the groove of the first spiral column (16), the bottom of the push rod (19) is fixedly connected to the first telescopic rod (17) and the top of the first spring (18), and the push rod (19) is vertically slidably connected to the groove of the first spiral column (16); The ejector plate (20) is transversely arranged inside the sealing cylinder (8), the bottom of the ejector plate (20) is fixedly connected to the top of the ejector rod (19), and four sliding grooves are arranged around the bottom of the ejector plate (20); The four round rods (21) are transversely arranged inside the sealing cylinder (8) and are respectively arranged in four slide grooves of the ejection plate (20). The four round rods (21) are respectively fixedly connected to the ejection plate (20); The four first sliding blocks (22) are arranged inside the sealing cylinder (8), respectively arranged in the four sliding grooves of the ejection plate (20), and respectively sleeved on the outside of the four round rods (21), and the four first sliding blocks (22) are respectively connected to the four round rods (21) in a transverse sliding manner; Four second springs (23) are arranged inside the sealing cylinder (8), respectively arranged in four slide grooves of the ejection plate (20), and respectively arranged on the sides away from the four first sliders (22), and respectively sleeved on the outsides of the four round rods (21); one end of the four second springs (23) is respectively fixedly connected to the four first sliders (22), and the other end is respectively fixedly connected to the inner wall of the ejection plate (20); Four connecting rods (24) are arranged at the lower part of the sealing cylinder (8) and are respectively arranged on the outer side of the first spiral column (16); one end of the four connecting rods (24) is respectively hinged to the first spiral column (16), and the other end is respectively hinged to the four first sliding blocks (22), and the hinge direction is horizontal; The four second sliding blocks (25) are respectively arranged in four vertical sliding grooves of the sealing cylinder (8), the four second sliding blocks (25) are respectively fixedly connected to the ejection plate (20), and the four second sliding blocks (25) are respectively vertically slidably connected to the inner wall of the sealing cylinder (8).

6. The unloading and ejecting device for die-casting molds of automobile parts according to claim 5, characterized in that The ejector plate (20) is made of a high temperature resistant material.

7. The unloading and ejecting device for a die-casting mold for automobile parts according to claim 5, characterized in that The four second sliding blocks (25) are fixedly connected to the ejection plate (20) by welding.

8. The unloading and ejecting device for a die-casting mold for automobile parts according to claim 5, characterized in that : two cooling and temperature reduction devices, wherein each of the cooling and temperature reduction devices comprises a cylinder (26), a piston (27), a second spiral column (28), a second threaded rod (29), a second gear (30), a second rack (31), an L-shaped nozzle (32), a first pipeline (33), and a second pipeline (34); The cylinder body (26) is transversely arranged in the upper cavity of the workbench (4), and the cylinder body (26) is fixedly connected to the inner wall of the workbench (4); The piston (27) is vertically arranged inside the cylinder (26), and the piston (27) is laterally slidably connected to the inner wall of the cylinder (26); The second spiral column (28) is transversely arranged on the side of the cylinder body (26) away from the sealing cylinder (8), and one end of the second spiral column (28) is fixedly connected to the piston (27); The second threaded rod (29) is transversely arranged on the side of the cylinder body (26) away from the sealing cylinder (8), the second threaded rod (29) transversely penetrates the inner wall of the workbench (4), the axis of the second threaded rod (29) is parallel to the axis of the first rotating shaft (9), the second threaded rod (29) is rotatably connected to the workbench (4), the part of the second threaded rod (29) in the cavity is threaded, and the part outside the workbench (4) is not threaded; The second gear (30) is vertically arranged on the outside of the workbench (4), located in front of the connecting bar (11), and sleeved on the outside of the second threaded rod (29). The axis of the second gear (30) coincides with the axis of the second threaded rod (29). The second gear (30) is fixedly connected to the second threaded rod (29); The second rack (31) is vertically arranged on the front side of the connecting bar (11) and is located on the rear side of the second gear (30), and the second rack (31) is fixedly connected to the connecting bar (11); The L-shaped nozzle (32) is transversely arranged above the workbench (4) and is located on the side of the lower mold (5), and the L-shaped nozzle (32) is fixedly connected to the workbench (4); The first pipe (33) is arranged inside the workbench (4) and is located at the upper part of the cylinder body (26); one end of the first pipe (33) is connected to the side of the cylinder body (26) close to the sealing cylinder (8), and the other end is connected to the L-shaped nozzle (32); The second pipe (34) is arranged inside the workbench (4) and is located at the lower part of the cylinder body (26). One end of the second pipe (34) is connected to the side of the cylinder body (26) close to the sealing cylinder (8), and the other end is connected to the external refrigeration box.

9. The unloading and ejecting device for a die-casting mold for automobile parts according to claim 8, characterized in that The L-shaped nozzle (32) has a plurality of nozzles evenly distributed on the side close to the lower mold (5).

10. The unloading and ejecting device for a die-casting mold of automobile parts according to claim 8, characterized in that The first pipeline (33) and the second pipeline (34) are both provided with a one-way valve inside.

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