A kind of oil sump injection mold ejection structure and injection mold
By designing the ejection structure of the oil pan injection mold, the problems of low demolding efficiency and difficult disassembly in semi-automatic injection molding equipment were solved, realizing mechanized demolding and rapid disassembly, and improving the safety and practicality of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO ANSHENG XINDA AUTOMOBILE TECH CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-03
AI Technical Summary
In existing semi-automatic injection molding equipment, the oil pan has low demolding efficiency and poses a risk of burns, and the injection nozzle is difficult to disassemble, increasing the workload and time required for workers.
An ejection structure for an oil pan injection mold was designed, comprising an ejection assembly, a dust suction assembly, and a snap-fit assembly, enabling mechanized demolding, quick disassembly of the injection nozzle, and dust cleaning.
It improves demolding efficiency, avoids burns, reduces operator time, and enhances equipment practicality and safety.
Smart Images
Figure CN224446732U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of semi-automatic injection molding machine technology, and more specifically to an ejection structure of an oil pan injection mold and an injection mold. Background Technology
[0002] The oil pan is the lower part of the crankcase, also known as the lower crankcase. It is located at the bottom of the engine and is a removable part. It is used to seal the crankcase and serves as the outer shell of the oil reservoir. Oil pans are mainly used in automobiles and some heavy machinery. In some factories, semi-automatic injection molding equipment is often used to produce oil pans.
[0003] The shortcomings of existing technologies are as follows: In existing semi-automatic injection molding equipment, high-temperature melting composite materials need to be injected into the mold for solidification. However, after the composite material solidifies from liquid, the oil pan in the mold needs to be manually demolded. Because the surface of the oil pan still retains some residual heat after solidification, it may burn the operator, requiring the operator to be very careful during demolding, which greatly reduces the demolding efficiency. At the same time, after the semi-automatic injection molding equipment completes its operation, the operator also needs to clean the residual material inside or outside the injection nozzle. However, the injection nozzle is generally installed with fasteners such as screws and nuts, which can easily cause stripping during disassembly, making disassembly difficult. This increases the operator's workload and working time, reduces the practicality of the equipment, and is not conducive to practical application and operation. Therefore, we propose an ejection structure for the oil pan injection mold and an injection mold. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an ejection structure and injection mold for an oil pan injection mold, so as to solve the problems existing in the background art.
[0005] This utility model provides the following technical solution: an ejection structure for an oil pan injection mold, including a worktable, a first cavity is provided inside the worktable, an ejection assembly is provided inside the first cavity, a dust suction assembly is provided inside the worktable and on one side of the ejection assembly, and a dust collection assembly is provided inside the worktable and below the dust suction assembly.
[0006] The ejection assembly includes a bidirectional lead screw, a convex block, a connecting rod, a push rod, a slide bar, a first slide groove, a limiting groove, and a limiting rod. The bidirectional lead screw is rotatably connected inside the first cavity. The convex block is threaded to the outer sides of both ends of the bidirectional lead screw. The bottom of the convex block is slidably connected to the bottom of the inner wall of the first cavity. The first slide groove is formed on both sides of the inner wall of the first cavity. The two limiting grooves are formed on both sides of the inner wall of the first slide groove. The slide bar is slidably connected inside the first slide groove. The two limiting rods are fixedly installed on both sides of the slide bar. The end of the limiting rod away from the slide bar is slidably connected to the inside of the limiting groove. The push rod is fixedly installed on the end of the slide bar away from the first slide groove. The two connecting rods are rotatably connected to both sides of the bottom end of the push rod. The end of the connecting rod away from the push rod is rotatably connected to both sides of the top of the convex block.
[0007] Preferably, the dust collection assembly includes a second cavity, a dust collector, and a dust hopper. The second cavity is located on the outside of the workbench. The dust collector is fixedly installed at the bottom of the inner wall of the second cavity. The dust hopper is fixedly installed at the top of the workbench. The input end of the dust collector penetrates the inner wall of the workbench and is fixedly connected to one side of the dust hopper. The output end of the dust collector penetrates the inner wall of the workbench and extends into the interior of the third cavity.
[0008] Preferably, the dust collection assembly includes a third cavity and dust suction plates. The third cavity is located outside the workbench and below the second cavity. The dust suction plates are slidably connected inside the third cavity and located below the dust collector output end.
[0009] Preferably, the ejector assembly further includes a top plate, a gear, an L-shaped rod, and a rack. The gear is fixedly installed at one end of the bidirectional lead screw and extends to the outside of the worktable. The L-shaped rod is disposed on one side of the shaping assembly. The rack is fixedly installed at the end of the L-shaped rod away from the shaping assembly. The gear and the rack are meshed together. The top plate is slidably connected inside the first cavity. The top ends of the ejector rods are all fixedly connected to the bottom of the top plate.
[0010] This utility model also provides an oil pan injection mold, including a worktable, a connecting plate, injection nozzles and an oil pan. An L-shaped plate is fixedly installed on the top of the worktable. A molding component is provided on the top of the inner wall of the L-shaped plate and the top of the worktable, located on the upper and lower sides of the connecting plate. A cold-setting component is provided inside the molding component. An injection component is provided on the top of the outer side of the L-shaped plate, located on both sides of the molding component. A snap-fit component is provided between the connecting plate and the two injection nozzles. The L-shaped rod is fixedly installed on one side of the top of the connecting plate.
[0011] The snap-fit assembly includes a through groove, a snap plate, a second sliding groove, an L-shaped protrusion, a U-shaped groove, and insert rods. The through grooves are all opened on both sides inside the connecting plate. The two insert rods are all fixedly installed on the top of the connecting plate and located on both sides of the through groove. The snap plate is fixedly installed on the outer side of the top of the injection nozzle. The bottom end of the injection nozzle is slidably connected to the inside of the through groove. The slots opened inside both ends of the snap plate are all fitted onto the outer side of the insert rods. The two second sliding grooves are all opened on the top of the connecting plate and located at both ends of the snap plate. The L-shaped protrusions are all slidably connected to the inside of the second sliding groove. The U-shaped grooves are all opened at the end of the L-shaped protrusion away from the second sliding groove. The inner side of the U-shaped groove abuts against the outer side of the top of the insert rod.
[0012] Preferably, the shaping component includes a mold groove, a cylinder, and an upper mold. The cylinder is fixedly installed on the top of the inner side of the L-shaped plate, the connecting plate is fixedly installed on the piston rod of the cylinder, the upper mold is fixedly installed on the bottom of the connecting plate and located between two through slots, the mold groove is opened on the top of the workbench and located on one side of the dust suction hopper, and the mold groove communicates with the first cavity.
[0013] Preferably, the snap-fit assembly further includes T-shaped rods and grooves. The four grooves are all formed on the top of the connecting plate and located on both sides of the second slide groove. The two T-shaped rods pass through the slots and grooves formed on both sides of the L-shaped protrusion in sequence.
[0014] Preferably, the injection molding assembly includes a material box, an L-shaped tube, and a hose. The material box is fixedly installed on the top of the outer side of the L-shaped plate. The L-shaped tubes are all fixedly installed on both sides of the material box. The bottom ends of the L-shaped tubes penetrate the inner wall of the L-shaped plate and extend to the inner side of the L-shaped plate. The hoses are all fixedly connected to the bottom ends of the L-shaped tubes and located on both sides of the cylinder. The ends of the hoses away from the L-shaped tubes are all fixedly connected to the top of the injection nozzle.
[0015] Preferably, the cooling assembly includes a square channel and a condenser, wherein the square channel is fixedly installed at equal intervals inside the upper mold, and the condenser is fixedly installed inside the square channel.
[0016] The aforementioned oil pan injection mold is fixedly installed on the top of the worktable in the ejection structure of the aforementioned oil pan injection mold.
[0017] The beneficial effects of this utility model are:
[0018] 1. This utility model, by setting an ejection component, facilitates the mechanical demolding of the condensed and formed oil pan, avoiding the problem of burns caused by manual demolding by workers, improving demolding efficiency, enhancing equipment safety, and increasing the practicality of the equipment.
[0019] 2. By setting up a snap-fit component, this utility model facilitates the quick assembly and disassembly of the injection nozzle on the connecting plate, preventing stripping of screws and nuts during installation or disassembly, reducing the workload of workers, further shortening their working time, and increasing the practicality of the equipment.
[0020] 3. This utility model, by setting up a dust-absorbing component, facilitates the adsorption of dust on the workbench, improves the cleanliness of the workbench surface, and reduces the need for workers to wipe the workbench. By setting up a dust-collecting component, it is convenient to collect dust and prevent pollution of the surrounding environment. By setting up a shaping component, it is convenient to inject composite materials into the mold and extrude them to form an oil pan. By setting up an injection molding component, it is convenient to supply materials to the injection nozzle in the through groove, ensuring the normal operation of the equipment. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0022] Figure 2 These are front sectional views of different layers of this utility model.
[0023] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle.
[0024] Figure 4 For the present utility model Figure 2 Enlarged view of point B in the middle.
[0025] Figure 5 For the present utility model Figure 2 Enlarged view of point C in the middle.
[0026] Explanation of reference numerals in the attached figures:
[0027] 1. Workbench; 2. L-shaped plate; 3. Mold groove; 4. First cavity; 5. Cylinder; 6. Connecting plate; 7. Upper mold; 8. Top plate; 9. Two-way lead screw; 10. Convex block; 11. Connecting rod; 12. Ejector rod; 13. Sliding bar; 14. First slide groove; 15. Limiting groove; 16. Limiting rod; 17. Gear; 18. L-shaped rod; 19. Rack; 20. Material box; 21. L-shaped tube; 22. Hose; 23. Through groove; 24. Injection nozzle; 25. Clamping plate; 26. Second slide groove; 27. L-shaped protrusion; 28. U-shaped groove; 29. Insert rod; 30. T-shaped rod; 31. Groove; 32. Square groove; 33. Condenser; 34. Second cavity; 35. Third cavity; 36. Dust collector; 37. Dust hopper; 38. Dust collection plate; 39. Oil pan. Detailed Implementation
[0028] The following will be combined with the appendix Figure 1 To be continued Figure 5The technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0029] This utility model provides an ejection structure for an oil pan injection mold, including a worktable 1. The worktable 1 has a first cavity 4 inside, and an ejection assembly is installed inside the first cavity 4. A dust-absorbing assembly is installed inside the worktable 1 and on one side of the ejection assembly. A dust-collecting assembly is installed inside the worktable 1 and below the dust-absorbing assembly. The dust-absorbing assembly facilitates the absorption of dust on the worktable 1, improving the cleanliness of the worktable surface and reducing the need for workers to wipe the worktable 1. The dust-collecting assembly facilitates the collection of dust, preventing pollution of the surrounding environment. The ejection assembly facilitates the mechanical demolding of the solidified oil pan 39, avoiding burns caused by manual demolding, improving demolding efficiency, enhancing equipment safety, increasing equipment practicality, and benefiting practical application and operation.
[0030] Furthermore, the ejection assembly includes a top plate 8, a bidirectional lead screw 9, a convex block 10, a connecting rod 11, a push rod 12, a slide bar 13, a first sliding groove 14, a limiting groove 15, a limiting rod 16, a gear 17, an L-shaped rod 18, and a rack 19. The bidirectional lead screw 9 is rotatably connected inside the first cavity 4. The convex block 10 is threadedly connected to the outer sides of both ends of the bidirectional lead screw 9. The bottom of each convex block 10 is slidably connected to the bottom of the inner wall of the first cavity 4. The first sliding groove 14 is formed on both sides of the inner wall of the first cavity 4. The slots 15 are all formed on both sides of the inner wall of the first slide groove 14. The slide bars 13 are all slidably connected to the inside of the first slide groove 14. The two limiting rods 16 are all fixedly installed on both sides of the slide bars 13. The ends of the limiting rods 16 away from the slide bars 13 are slidably connected to the inside of the limiting slots 15. The push rods 12 are all fixedly installed on the ends of the slide bars 13 away from the first slide groove 14. The two connecting rods 11 are rotatably connected to both sides of the bottom end of the push rods 12. The ends of the connecting rods 11 away from the push rods 12 are rotatably connected to both sides of the top of the convex block 10. Next, gear 17 is fixedly installed at one end of the bidirectional lead screw 9 and extends to the outside of the worktable 1. L-shaped rod 18 is set on one side of the molding component. Rack 19 is fixedly installed at the end of L-shaped rod 18 away from the molding component. Gear 17 and rack 19 are meshed and connected. Top plate 8 is slidably connected inside the first cavity 4. The top ends of push rods 12 are fixedly connected to the bottom of top plate 8. When the connecting plate 6 on the piston rod of drive cylinder 5 moves down, it drives the rack 19 at the bottom of one side of L-shaped rod 18 to move down, driving gear 17 on one end of bidirectional lead screw 9 to rotate, thereby driving the two convex blocks 10 on bidirectional lead screw 9 to slide in opposite directions, thereby driving the two connecting rods 11 to swing. At the same time, it drives the two limiting rods 16 on one end of slide bar 13 to slide downward in the two limiting grooves 15 inside the first slide groove 14, thereby driving the two push rods 12 to move downward, thereby driving top plate 8 to slide downward in the first cavity 4, forming a reset pre-injection operation. The reverse operation is the ejection operation.
[0031] Furthermore, the dust collection assembly includes a second cavity 34, a dust collector 36, and a dust collection hopper 37. The second cavity 34 is located on the outside of the workbench 1. The dust collector 36 is fixedly installed at the bottom of the inner wall of the second cavity 34, and the dust collection hopper 37 is fixedly installed at the top of the workbench 1. The input end of the dust collector 36 penetrates the inner wall of the workbench 1 and is fixedly connected to one side of the dust collection hopper 37. The output end of the dust collector 36 penetrates the inner wall of the workbench 1 and extends into the interior of the third cavity 35. By driving the second slide 26 and using the dust collection hopper 37, the dust adsorbed on the workbench 1 is cleaned into the third cavity 35, thus realizing the dust collection operation.
[0032] Furthermore, the dust collection assembly includes a third cavity 35 and dust suction plates 38. The third cavity 35 is located outside the workbench 1 and below the second cavity 34. The dust suction plates 38 are slidably connected inside the third cavity 35 and located below the output end of the dust collector 36. Driven by the dust collector 36, dust is adsorbed onto the dust suction plates 38 inside the third cavity 35, thus realizing the dust collection operation.
[0033] This utility model also provides an oil pan injection mold, including a worktable 1, a connecting plate 6, injection nozzles 24, and an oil pan 39. An L-shaped plate 2 is fixedly installed on the top of the worktable 1. A molding assembly is provided on the top of the inner wall of the L-shaped plate 2 and on the top of the worktable 1, located on the upper and lower sides of the connecting plate 6. A cold-setting assembly is provided inside the molding assembly. An injection assembly is provided on the top of the outer side of the L-shaped plate 2, located on both sides of the molding assembly. A snap-fit assembly is provided between the connecting plate 6 and the two injection nozzles 24. An L-shaped rod 18 is fixedly installed on one side of the top of the connecting plate 6. By setting up the molding component, it is convenient to inject composite materials into the mold and extrude them to form the oil pan 39. By setting up the injection molding component, it is convenient to supply material to the injection nozzle 24 in the through groove 23, ensuring the normal operation of the equipment. By setting up the snap-fit component, it is convenient to quickly assemble and disassemble the injection nozzle 24 on the connecting plate 6, preventing the stripping of screws and nuts during installation or disassembly, reducing the workload of workers, further shortening their working time, increasing the practicality of the equipment, and facilitating practical application and operation.
[0034] Furthermore, the shaping component includes a mold groove 3, a cylinder 5, and an upper mold 7. The cylinder 5 is fixedly installed on the top of the inner side of the L-shaped plate 2, and the connecting plate 6 is fixedly installed on the piston rod of the cylinder 5. The upper mold 7 is fixedly installed on the bottom of the connecting plate 6 and located between the two through slots 23. The mold groove 3 is opened on the top of the workbench 1 and located on one side of the dust suction hopper 37. The mold groove 3 communicates with the first cavity 4. By driving the cylinder 5, the upper mold 7 at the bottom of the connecting plate 6 is moved downward, so that the upper mold 7 and the top plate 8 in the first cavity 4 form an oil pan 39, thereby realizing the shaping operation.
[0035] Furthermore, the injection molding assembly includes a material box 20, an L-shaped tube 21, and a hose 22. The material box 20 is fixedly installed on the top of the outer side of the L-shaped plate 2. The L-shaped tubes 21 are all fixedly installed on both sides of the material box 20. The bottom ends of the L-shaped tubes 21 penetrate the inner wall of the L-shaped plate 2 and extend to the inner side of the L-shaped plate 2. The hoses 22 are all fixedly connected to the bottom ends of the L-shaped tubes 21 and located on both sides of the cylinder 5. The ends of the hoses 22 away from the L-shaped tubes 21 are all fixedly connected to the top of the injection nozzle 24. By driving the material box 20, the composite material in the material box 20 is sequentially transferred to the injection nozzle 24 through the L-shaped tubes 21 and the hoses 22 to achieve the effect of injection molding material supply.
[0036] Furthermore, the cold-forming component includes a square groove 32 and a condenser 33. The square groove 32 is fixedly installed at equal intervals inside the upper mold 7, and the condensers 33 are all fixedly installed inside the square groove 32. By driving the condensers 33 inside the square groove 32, the outer surface of the upper mold 7 is cooled, and the composite material is further condensed and formed, thus realizing the condensation operation.
[0037] Furthermore, the snap-fit assembly includes a through groove 23, a snap-fit plate 25, a second sliding groove 26, an L-shaped protrusion 27, a U-shaped groove 28, a plug rod 29, a T-shaped rod 30, and a recess 31. The through groove 23 is formed on both sides inside the connecting plate 6. The two plug rods 29 are fixedly installed on the top of the connecting plate 6 and located on both sides of the through groove 23. The snap-fit plate 25 is fixedly installed on the outer side of the top of the injection nozzle 24. The bottom end of the injection nozzle 24 is slidably connected to the inside of the through groove 23. The slots formed inside both ends of the snap-fit plate 25 fit over the outer side of the plug rod 29. The two second sliding grooves 26 are formed on the top of the connecting plate 6 and located at both ends of the snap-fit plate 25. The L-shaped protrusion 27 is slidably connected inside the second sliding groove 26. The U-shaped groove 28 is formed at the end of the L-shaped protrusion 27 away from the second sliding groove 26. The inner side of the U-shaped groove 28 abuts against the outer side of the top of the plug rod 29. All four recesses 31 are formed... At the top of the connecting plate 6 and on both sides of the second slide groove 26, two T-shaped rods 30 pass through the slots and grooves 31 on both sides of the L-shaped protrusion 27. When it is necessary to remove the injection nozzle 24 in the through groove 23, first pull out the T-shaped rods 30 on both sides of the L-shaped protrusion 27 from two of the grooves 31, and then manually pull the two L-shaped protrusions 27 to slide back and forth in the second slide groove 26, so that the slots on both sides of the L-shaped protrusion 27 correspond to the other two grooves 31. Then insert the T-shaped rods 30 into the grooves and grooves 31 in sequence, so that the U-shaped groove 28 on one end of the L-shaped protrusion 27 is separated from the insertion rod 29. Then separate the clamping plate 25 from the two insertion rods 29, and at the same time drive the injection nozzle 24 to detach from the through groove 23, thus completing the disassembly operation of the injection nozzle 24 from the connecting plate 6.
[0038] Furthermore, the aforementioned oil pan injection mold is fixedly installed on the top of the worktable 1 in the ejection structure of the aforementioned oil pan injection mold.
[0039] The working principle of this utility model is as follows: First, the external control panel is activated, driving cylinder 5 to move the upper mold 7 at the bottom of the connecting plate 6 downwards, so that the upper mold 7 matches the cavity formed by the top plate 8 blocking the interior of the mold groove 3 and the first cavity 4. At the same time, the connecting plate 6 on the piston rod of the driving cylinder 5 moves downwards, driving the rack 19 at the bottom of the L-shaped rod 18 on one side to move downwards, driving the gear 17 on one end of the bidirectional lead screw 9 to rotate, thereby driving the two convex blocks 10 on the bidirectional lead screw 9 to slide in opposite directions, thereby driving the two connecting rods 11 to swing, and at the same time driving the two limiting rods 16 on one end of the slide bar 13 to slide downwards within the two limiting grooves 15 inside the first slide groove 14, thereby driving the two push rods 12 to move downwards. The material moves downward, causing the top plate 8 to slide downward within the first cavity 4, forming a reset pre-injection operation. Then, the material box 20 is driven to transfer the composite liquid material in the material box 20 through the L-shaped tube 21 and the hose 22 to the injection nozzle 24, and then it is injected into the mold groove 3. The top plate 8 in the first cavity 4 forms a cavity that is blocked. Then, the condenser 33 in the square groove 32 in the upper mold 7 is driven to cool the outer surface of the upper mold 7, further solidifying and molding the composite material. When the composite material forms an oil pan 39, the cylinder 5 is driven again to disengage the upper mold 7 at the bottom of the connecting plate 6 from the mold groove 3. At the same time, the rack 19 at the bottom of the L-shaped rod 18 is moved upward, driving the bidirectional lead screw 9. The gear 17 on one end rotates in the opposite direction, thereby driving the two protruding blocks 10 on the bidirectional lead screw 9 to slide towards each other, which in turn drives the two connecting rods 11 to swing. At the same time, it drives the two limiting rods 16 on one end of the slide bar 13 to slide upward within the two limiting grooves 15 inside the first slide groove 14, thereby driving the two ejector rods 12 to move upward, which in turn drives the top plate 8 to slide upward within the first cavity 4, ejecting the oil pan 39 on the mold groove 3. When the equipment ends, it is necessary to clean the residual material adhering to the inside and outside of the injection nozzle 24. The injection nozzle 24 in the through groove 23 needs to be disassembled. First, pull out the T-shaped rods 30 on both sides of the L-shaped protrusion 27 from two of the grooves 31, and then manually... Two L-shaped protrusions 27 are slid back-to-back inside the second slide groove 26, so that the slots on both sides of the L-shaped protrusions 27 correspond to the other two grooves 31. Then, the T-shaped rods 30 are inserted into the grooves and grooves 31 in sequence, which at the same time separates the U-shaped groove 28 on one end of the L-shaped protrusions 27 from the insertion rods 29. Then, the retaining plate 25 is separated from the two insertion rods 29, which also drives the injection nozzle 24 to detach from the through groove 23, completing the disassembly operation of the injection nozzle 24 from the connecting plate 6, which facilitates the cleaning of the injection nozzle 24. Then, the dust suction hopper 37 is driven to clean the dust adsorbed on the workbench 1 into the third cavity 35, realizing the dust suction operation and reducing the surrounding environmental pollution. Then, driven by the dust suction device 36,Dust is adsorbed onto the dust-collecting plates 38 inside the third cavity 35, thus collecting the dust. Then, the two dust-collecting plates 38 are removed from the third cavity 35 for cleaning, completing the working principle.
[0040] Based on the explanations and teachings in the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and any modifications and alterations to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.
Claims
1. An ejection structure for an oil pan injection mold, comprising a worktable (1), characterized in that: The workbench (1) has a first cavity (4) inside, and an ejection assembly is provided inside the first cavity (4). A dust suction assembly is provided inside the workbench (1) and on one side of the ejection assembly. A dust collection assembly is provided inside the workbench (1) and below the dust suction assembly. The ejection assembly includes a bidirectional lead screw (9), a convex block (10), a connecting rod (11), an ejector rod (12), a slide bar (13), a first slide groove (14), a limiting groove (15), and a limiting rod (16). The bidirectional lead screw (9) is rotatably connected to the inside of the first cavity (4). The convex block (10) is threaded to the outer sides of both ends of the bidirectional lead screw (9). The bottom of the convex block (10) is slidably connected to the bottom of the inner wall of the first cavity (4). The first slide groove (14) is opened on both sides of the inner wall of the first cavity (4). The two limiting grooves (15) are opened in the first slide groove. (14) On both sides of the inner wall, the slide bar (13) is slidably connected to the inside of the first slide groove (14), and the two limiting rods (16) are fixedly installed on both sides of the slide bar (13). The end of the limiting rod (16) away from the slide bar (13) is slidably connected to the inside of the limiting groove (15). The top rod (12) is fixedly installed on the end of the slide bar (13) away from the first slide groove (14). The two connecting rods (11) are rotatably connected to both sides of the bottom end of the top rod (12). The end of the connecting rod (11) away from the top rod (12) is rotatably connected to both sides of the top of the convex block (10).
2. The ejection structure of an oil pan injection mold according to claim 1, wherein: The dust collection assembly includes a second cavity (34), a dust collector (36), and a dust collection hopper (37). The second cavity (34) is located on the outside of the workbench (1). The dust collector (36) is fixedly installed at the bottom of the inner wall of the second cavity (34). The dust collection hopper (37) is fixedly installed at the top of the workbench (1). The input end of the dust collector (36) penetrates the inner wall of the workbench (1) and is fixedly connected to one side of the dust collection hopper (37). The output end of the dust collector (36) penetrates the inner wall of the workbench (1) and extends into the interior of the third cavity (35).
3. The ejection structure of an oil pan injection mold according to claim 1, wherein: The dust collection assembly includes a third cavity (35) and dust suction plates (38). The third cavity (35) is located outside the workbench (1) and below the second cavity (34). The dust suction plates (38) are slidably connected inside the third cavity (35) and located below the output end of the dust collector (36).
4. The ejection structure of an oil pan injection mold according to claim 1, wherein: The ejection assembly also includes a top plate (8), a gear (17), an L-shaped rod (18), and a rack (19). The gear (17) is fixedly installed at one end of the bidirectional lead screw (9) and extends to the outside of the worktable (1). The L-shaped rod (18) is located on one side of the shaping assembly. The rack (19) is fixedly installed at the end of the L-shaped rod (18) away from the shaping assembly. The gear (17) and the rack (19) are meshed together. The top plate (8) is slidably connected inside the first cavity (4). The top ends of the ejector rods (12) are all fixedly connected to the bottom of the top plate (8).
5. An oil sump injection mold comprising a table (1), a connecting plate (6), an injection nozzle (24) and an oil sump (39), characterized in that: An L-shaped plate (2) is fixedly installed on the top of the workbench (1). A molding component is provided on the top of the inner wall of the L-shaped plate (2) and the top of the workbench (1) and on the upper and lower sides of the connecting plate (6). A cold-setting component is provided inside the molding component. An injection molding component is provided on the top of the outer side of the L-shaped plate (2) and on both sides of the molding component. A snap-fit component is provided between the connecting plate (6) and the two injection nozzles (24). The L-shaped rod (18) is fixedly installed on one side of the top of the connecting plate (6). The snap-fit assembly includes a through groove (23), a snap plate (25), a second sliding groove (26), an L-shaped protrusion (27), a U-shaped groove (28), and insert rods (29). The through grooves (23) are all opened on both sides inside the connecting plate (6). The two insert rods (29) are fixedly installed on the top of the connecting plate (6) and located on both sides of the through grooves (23). The snap plates (25) are all fixedly installed on the outer side of the top of the injection nozzle (24). The bottom end of the injection nozzle (24) is connected to the inner side of the through groove (23). The parts are slidably connected. The slots opened inside both ends of the card plate (25) are all fitted onto the outside of the insert rod (29). The two second sliding grooves (26) are opened on the top of the connecting plate (6) and located at both ends of the card plate (25). The L-shaped protrusions (27) are all slidably connected inside the second sliding grooves (26). The U-shaped grooves (28) are all opened at the end of the L-shaped protrusions (27) away from the second sliding grooves (26). The inner side of the U-shaped grooves (28) abuts against the outer side of the top of the insert rod (29).
6. An oil pan injection mold according to claim 5, wherein: The shaping component includes a mold groove (3), a cylinder (5) and an upper mold (7). The cylinder (5) is fixedly installed on the top of the inner side of the L-shaped plate (2). The connecting plate (6) is fixedly installed on the piston rod of the cylinder (5). The upper mold (7) is fixedly installed on the bottom of the connecting plate (6) and located between two through slots (23). The mold groove (3) is opened on the top of the workbench (1) and located on one side of the dust suction hopper (37). The mold groove (3) communicates with the first cavity (4).
7. An oil pan injection mold as set forth in claim 5 wherein: The snap-fit assembly also includes T-shaped rods (30) and grooves (31). The four grooves (31) are all opened on the top of the connecting plate (6) and located on both sides of the second slide groove (26). The two T-shaped rods (30) pass through the slots and the interior of the grooves (31) opened on both sides of the L-shaped protrusion (27) in sequence.
8. An oil pan injection mold according to claim 5, wherein: The injection molding assembly includes a hopper (20), an L-shaped tube (21), and a hose (22). The hopper (20) is fixedly installed on the top of the outer side of the L-shaped plate (2). The L-shaped tubes (21) are all fixedly installed on both sides of the hopper (20). The bottom ends of the L-shaped tubes (21) penetrate the inner wall of the L-shaped plate (2) and extend to the inner side of the L-shaped plate (2). The hoses (22) are all fixedly connected to the bottom ends of the L-shaped tubes (21) and located on both sides of the cylinder (5). The end of the hose (22) away from the L-shaped tubes (21) is fixedly connected to the top end of the injection nozzle (24).
9. An oil pan injection mold as set forth in claim 5 wherein: The cold-solidifying assembly comprises square grooves (32) fixedly installed equidistantly inside the upper mold (7) and condensers (33) fixedly installed inside the square grooves (32).
10. An oil pan injection mold according to any one of claims 5-9, characterized in that: The oil pan injection mold of any one of claims 5-9 is fixedly installed in the top of the workbench (1) of the ejection structure of the oil pan injection mold of any one of claims 1-4.