A high-precision die casting device for non-ferrous metal casting

Abstract

The application discloses a high-precision die-casting device for non-ferrous metal casting and relates to the technical field of non-ferrous metal casting. The device comprises a rack and a spraying assembly. The middle part of the rack is slidably connected with a driving seat. The spraying assembly is arranged on one side of the driving seat and comprises a guide frame. The side of the driving seat is provided with the guide frame. The inside of the guide frame is fixedly provided with an electric push rod. The end of the electric push rod is provided with a driving plate. The side of the driving plate is fixedly provided with a piston plate. The device is provided with a first spring seat grading driving ejection mechanism connected with the electric push rod. The ejector rod automatically ejects the workpiece during unloading. The secondary propulsion triggers the hydraulic system to supply the release agent to two spray heads. The double-mold cavity synchronous spraying and recoating are realized. When the ejector rod is reset, the extension spring can retract the second spray head to avoid collision and automatically supplement the release agent in the fixed box. The design integrates the release, spraying and liquid supplement processes in a single power source, which significantly improves the continuous casting efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of non-ferrous metal casting, in particular to a high-precision die casting device for non-ferrous metal casting. BACKGROUND

[0002] Non-ferrous metal, also known as non-ferrous metal in a narrow sense, refers to all metals except iron and iron-based alloys, which can be divided into heavy metals, light metals, precious metals and rare metals. In the process of non-ferrous metal casting, a die casting device is needed for die casting.

[0003] At present, in the process of non-ferrous metal die casting, in order to prevent the product from being firmly adhered to the mold during demolding and causing tearing and affecting the precision of the product, a release agent is usually sprayed on the inner wall of the mold to ensure smooth demolding of the new casting and protect the surface of the mold. However, manual re-coating of the inner wall of the mold is required after each unloading, which is time-consuming and labor-intensive. SUMMARY

[0004] The purpose of the present application is to provide a high-precision die casting device for non-ferrous metal casting to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a high-precision die casting device for non-ferrous metal casting, comprising a rack and a spraying assembly, the middle part of the rack is slidably connected with a driving seat, the spraying assembly is arranged on one side of the driving seat, and the spraying assembly comprises a guide frame, one side of the driving seat is provided with the guide frame, and the inside of the guide frame is fixedly provided with an electric push rod, one end of the electric push rod is provided with a driving plate, one side of the driving plate is fixedly provided with a piston plate, the outside of the piston plate is slidably connected with a fixed box, the top of the fixed box is provided with a first one-way valve, and the top of the first one-way valve is connected with a liquid storage tank through a pipeline, one side of the fixed box is provided with a second one-way valve, the end of the second one-way valve is connected with a flow divider, the upper and lower ends of one side of the flow divider are provided with first spring seats, the other side of the flow divider is rotatably connected with a jack, one end of the jack is internally provided with a partition plate, the two sides of the partition plate are fixedly provided with extension springs, and the ends of the extension springs are fixedly provided with first nozzles, and the end of the jack is provided with a second nozzle.

[0006] Further, the flow divider is slidably connected with the guide frame, and the jacks are arrayed on one side of the flow divider.

[0007] Further, the first nozzles are slidably connected with the jacks, and the jacks are slidably connected with the moving dies.

[0008] Further, the die is arranged in the inner side of one end of the frame, and a double-shaft motor is fixed to the outer side of the other end of the frame, the output shaft of the double-shaft motor is connected with a gear reverser, the output shaft of the gear reverser is arranged with a screw rod, the screw rod is threadedly connected with a driving seat, and the other side of the driving seat is fixed with a movable die.

[0009] Further, the other end of the ejector rod is provided with a protection assembly, and the protection assembly comprises a fixing ring, the outer circumferential surface of the ejector rod is fixed with the fixing ring, one side of the fixing ring is arranged with a second spring seat, the end of the second spring seat is fixed with a sliding sleeve, and one side of the sliding sleeve is rotatably connected with a supporting plate.

[0010] Further, the other side of the sliding sleeve is fixed with a limiting plate, the inner part of the limiting plate is provided with a guide groove, the inner part of the guide groove is slidably connected with a sliding column, the end of the sliding column is fixed with a rotating shaft, and one end of the rotating shaft is arranged with an end cover.

[0011] Further, the rotating shaft is rotatably connected with the ejector rod, and the ejector rod is slidably connected with the sliding sleeve.

[0012] Further, the bottom of the driving plate is connected with an equal distribution assembly, and the equal distribution assembly comprises a connecting rod, the bottom of the driving plate is rotatably connected with the connecting rod, the lower end of the connecting rod is rotatably connected with a sliding plate, and one side of the sliding plate is slidably connected with a limiting strip.

[0013] Further, the limiting strip is in isosceles trapezoidal cross section, and the limiting strip is fixedly connected with the flow distribution plate.

[0014] Further, the two sides of the sliding plate are symmetrically arranged with toothed plates, one side of the toothed plates is engaged with a toothed ring, and the toothed ring is fixedly connected with the ejector rod.

[0015] The application provides a high-precision die casting device for non-ferrous metal casting, which has the following advantages:

[0016] 1. The ejector rod automatically ejects the workpiece during unloading, the second nozzle is retracted by the extension spring to avoid collision, and the fixed box is automatically replenished with the release agent, which integrates the release, spraying and liquid replenishment processes in a single power source, significantly improves the continuous casting efficiency, avoids process interruption caused by manual coating, and ensures the forming quality and size accuracy of non-ferrous metal parts.

[0017] 2、The end cover opening and closing state is cooperatively controlled by the ejector rod, in the die casting process, the end cover can shield the second nozzle to prevent metal liquid from invading, after demolding, the displacement of the ejector rod triggers the end cover to rotate to avoid the spraying path, and when the ejector rod is retracted, the reset spring drives the end cover to automatically return to protect, the structure realizes self-adaptive switching of the nozzle working state, eliminates the risk of manual operation, prolongs the service life of the precision nozzle, and is especially suitable for automatic protection demand in high-temperature die casting environment.

[0018] 3、The connecting rod drives the ejector rod to rotate through the gear plate and the rack, so that the coverage range of the demolding agent is expanded in the subsequent spraying process, and the rotation centrifugal force cooperates with the hydraulic pressure to ensure that the first nozzle is smoothly unfolded, the design realizes uniform coating of the moving die inner wall, improves the film consistency of the demolding agent, and avoids the risk of sticking caused by local missing coating. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole three-dimensional right view structure schematic diagram of the die casting device for high-precision non-ferrous metal casting;

[0020] Figure 2 It is a whole three-dimensional left view structure schematic diagram of the die casting device for high-precision non-ferrous metal casting;

[0021] Figure 3 It is a guide frame internal structure schematic diagram of the die casting device for high-precision non-ferrous metal casting;

[0022] Figure 4 It is a fixed box internal structure schematic diagram of the die casting device for high-precision non-ferrous metal casting;

[0023] Figure 5 It is a partial structure schematic diagram of the ejector rod of the die casting device for high-precision non-ferrous metal casting;

[0024] Figure 6 It is a three-dimensional structure schematic diagram of the protection assembly of the die casting device for high-precision non-ferrous metal casting;

[0025] Figure 7 It is a three-dimensional structure schematic diagram of the slide column of the die casting device for high-precision non-ferrous metal casting;

[0026] Figure 8 It is a three-dimensional structure schematic diagram of the uniform distribution assembly of the die casting device for high-precision non-ferrous metal casting.

[0027] In the figure: 1, rack; 2, fixed mold; 3, double-shaft motor; 4, gear reverser; 5, screw rod; 6, driving seat; 7, movable mold; 8, spraying assembly; 801, guide frame; 802, electric push rod; 803, driving plate; 804, piston plate; 805, fixed box; 806, first check valve; 807, liquid storage tank; 808, second check valve; 809, flow distribution plate; 810, first spring seat; 811, ejector rod; 812, partition plate; 813, tension spring; 814, first nozzle; 815, second nozzle; 9, protection assembly; 901, fixed ring; 902, second spring seat; 903, sliding sleeve; 904, support plate; 905, limiting plate; 906, guide groove; 907, sliding column; 908, rotating shaft; 909, end cover; 10, uniform distribution assembly; 1001, connecting rod; 1002, sliding plate; 1003, limiting strip; 1004, toothed plate; 1005, toothed ring. DETAILED DESCRIPTION

[0028] Please refer to Figures 1 to 5 The application provides the technical scheme: a high-precision die casting device for non-ferrous metal casting, which comprises a rack 1 and a spraying assembly 8. The inner side of one end of the rack 1 is provided with a fixed mold 2, and the outer side of the other end of the rack 1 is fixedly provided with a double-shaft motor 3. The output shaft of the double-shaft motor 3 is connected with a gear reverser 4, and the output shaft of the gear reverser 4 is provided with a screw rod 5. The middle part of the rack 1 is slidingly connected with a driving seat 6, the screw rod 5 is threadedly connected with the driving seat 6, and the other side of the driving seat 6 is fixedly provided with a movable mold 7. The spraying assembly 8 is arranged on one side of the driving seat 6 and comprises a guide frame 801. The one side of the driving seat 6 is provided with the guide frame 801, and the inner side of the guide frame 801 is fixedly provided with an electric push rod 802. The end of the electric push rod 802 is provided with a driving plate 803, and one side of the driving plate 803 is fixedly provided with a piston plate 804. The outer side of the piston plate 804 is slidingly connected with a fixed box 805, and the top of the fixed box 805 is provided with a first check valve 806. The top of the first check valve 806 is connected with a liquid storage tank 807 through a pipeline. The middle part of one side of the fixed box 805 is provided with a second check valve 808, and the end of the second check valve 808 is connected with a flow distribution plate 809. The upper and lower ends of one side of the flow distribution plate 809 are provided with first spring seats 810, and the other side of the flow distribution plate 809 is rotationally connected with an ejector rod 811. The inner end of one end of the ejector rod 811 is provided with a partition plate 812, and the two sides of the partition plate 812 are fixedly provided with tension springs 813. The end of the tension spring 813 is fixedly provided with a first nozzle 814. The end of the ejector rod 811 is provided with a second nozzle 815. The flow distribution plate 809 is slidingly connected with the guide frame 801, and the ejector rod 811 is arrayed on one side of the flow distribution plate 809. The first nozzle 814 is slidingly connected with the ejector rod 811, and the ejector rod 811 is slidingly connected with the movable mold 7.

[0029] Specific operation as follows, in the colored metal pressure casting forming, the double-shaft motor 3 will drive the screw rod 5 to rotate through the gear commutator 4, so that the driving seat 6 drives the movable mold 7 and the fixed mold 2 to separate, then in the demolding, the electric push rod 802 pushes the driving plate 803 under the limiting of the guide frame 801, at this time, because the first spring seat 810 has larger elastic force, it will preferentially drive the shunt plate 809 to move to the driving seat 6, so that the ejector rod 811 pushes the workpiece in the movable mold 7 cavity out, which is convenient for unloading, and after unloading, with the electric push rod 802 continues to advance, the end of the ejector rod 811 can be located between the fixed mold 2 and the movable mold 7, at this time, the groove in the guide frame 801 can limit the movement of the protrusion on the side of the shunt plate 809, the first spring seat 810 will shrink due to pressure, the piston plate 804 will extrude the demolding agent in the fixed box 805 to the inside of the shunt plate 809 through the second one-way valve 808, and enter the ejector rod 811, so that the internal pressure continues to increase, so that the first spray head 814 can be extruded by hydraulic pressure, and the first spray head 814 extends from the inside of the ejector rod 811, and the outlet of the first spray head 814 is inclined, so that the inner wall of the movable mold 7 can be sprayed and coated, and the surface of the fixed mold 2 can also be sprayed and coated by the second spray head 815, so that the demolding agent in the mold can be automatically coated after demolding without adding other additional equipment, ensuring the quality and precision of the continuous casting of non-ferrous metal parts, and when the driving plate 803 is moved back by the electric push rod 802, the extension spring 813 can pull the first spray head 814 under the limiting of the partition plate 812, so that it is automatically retracted into the ejector rod 811, avoiding damage caused by collision with the movable mold 7, and at the same time, as the space between the fixed box 805 and the piston plate 804 gradually increases, the demolding agent in the liquid storage tank 807 can be automatically added to the fixed box 805 through the first one-way valve 806, without frequent manual replenishment, saving time and effort during operation.

[0030] Please refer to Figures 5 to 7 , the other end of the ejector rod 811 is provided with a protection assembly 9, and the protection assembly 9 comprises a fixed ring 901, the outer circumference of the ejector rod 811 is fixed with the fixed ring 901, one side of the fixed ring 901 is provided with a second spring seat 902, the end of the second spring seat 902 is fixed with a sliding sleeve 903, one side of the sliding sleeve 903 is rotatably connected with a support plate 904, the other side of the sliding sleeve 903 is fixed with a limiting plate 905, the inside of the limiting plate 905 is provided with a guide groove 906, the inside of the guide groove 906 is slidably connected with a sliding column 907, the end of the sliding column 907 is fixed with a rotating shaft 908, one end of the rotating shaft 908 is provided with an end cover 909, the rotating shaft 908 is rotatably connected with the ejector rod 811, and the ejector rod 811 is slidably connected with the sliding sleeve 903;

[0031] Specific operation as follows, in die casting, the second spring seat 902 will push the sliding sleeve 903, so that the slide column 907 is located in the lower part of the limiting plate 905, at this time the end cover 909 will cover the end of the ejector rod 811, to avoid the die casting process, the metal melt into the second nozzle 815 to cause damage, and after demolding, when the end of the ejector rod 811 is moved to the fixed mold 2 and the movable mold 7, the support plate 904 will be attached to the driving seat 6, thereby limiting the support plate 904 continues to move, in the process, because the second spring seat 902 is smaller than the first spring seat 810, so the second spring seat 902 will be compressed first, so that the slide column 907 along the limiting plate 905 in the guide groove 906 sliding, so that it rotates a half turn, so before spraying, can be automatically removed by the shaft 908 to make the end cover 909 from the outside of the second nozzle 815, to avoid the second nozzle 815 of the spraying operation caused by shielding, and after spraying, when the distance between the fixed ring 901 and the driving seat 6 increases, with the reset of the limiting plate 905, the end cover 909 can be automatically returned to protect the second nozzle 815, without the need for additional manual operation, more convenient.

[0032] Please refer to Figure 4 and Figure 8 The bottom of the driving plate 803 is connected with the uniform distribution assembly 10, and the uniform distribution assembly 10 comprises a connecting rod 1001, the bottom of the driving plate 803 is rotatably connected with the connecting rod 1001, the lower end of the connecting rod 1001 is rotatably connected with a sliding plate 1002, one side of the sliding plate 1002 is slidably connected with a limiting strip 1003, the limiting strip 1003 is in the shape of isosceles trapezoid, and the limiting strip 1003 is fixedly connected with the shunt plate 809, both sides of the sliding plate 1002 are symmetrically provided with a toothed plate 1004, one side of the toothed plate 1004 is engaged with a toothed ring 1005, and the toothed ring 1005 is fixedly connected with the ejector rod 811.

[0033] Specific operation as follows, when the driving plate 803 drives the piston plate 804 to extrude the demolding agent in the fixed box 805, it will also push the sliding plate 1002 through the connecting rod 1001, and the limiting strip 1003 limits the moving direction of the sliding plate 1002, so that it can only move vertically, so when the connecting rod 1001 drives the sliding plate 1002 to move downward, it can make all the ejector rods 811 rotate through the toothed plate 1004 and the toothed ring 1005, so as to expand the spraying range of the first nozzle 814, so as to cover the inner wall of the movable mold 7, which is beneficial to improve the uniformity of spraying, and when the ejector rod 811 rotates, it can also use the centrifugal force to help the first nozzle 814 smoothly move out of the ejector rod 811, to ensure the normal work of the first nozzle 814.

[0034] In summary, the high-precision die-casting device for non-ferrous metals uses the electric push rod 802 to retract first, causing the driving plate 803 to pull the shunt plate 809 through the first spring seat 810, which drives the end of the ejector rod 811 to retract into the movable die 7. At this time, the distance between the fixed ring 901 and the driving seat 6 increases, the second spring seat 902 pushes the sliding sleeve 903, so that the slide column 907 is located below the limiting plate 905, and the end cover 909 shields and protects the end of the ejector rod 811, preventing the molten metal from entering the second nozzle 815 during die casting and causing damage to it.

[0035] Secondly, the double-shaft motor 3 rotates the screw rod 5 through the gear commutator 4, thereby controlling the movable die 7 and the fixed die 2 to close through the driving seat 6, and subsequent die casting operations can be performed. After the non-ferrous metal is die cast, the movable die 7 and the fixed die 2 are separated by the driving seat 6, and then the electric push rod 802 pushes the driving plate 803 under the limiting of the guide frame 801. At this time, due to the greater elastic force of the first spring seat 810, the shunt plate 809 is driven to move towards the driving seat 6, thereby causing the ejector rod 811 to push the workpiece inside the movable die 7 cavity out, facilitating unloading. After unloading, as the electric push rod 802 continues to advance, when the end of the ejector rod 811 moves between the fixed die 2 and the movable die 7, the support plate 904 will be attached to the driving seat 6, thereby limiting the support plate 904 from moving further. During this process, since the elastic force of the second spring seat 902 is smaller than that of the first spring seat 810, the second spring seat 902 will be compressed first, causing the slide column 907 to slide along the guide groove 906 in the limiting plate 905, rotating half a circle. Therefore, before spraying, the end cover 909 can be automatically moved away from the outside of the second nozzle 815 through the shaft 908, avoiding obstruction of the spraying operation of the second nozzle 815.

[0036] Then, when the end of the ejector rod 811 is located between the fixed mold 2 and the movable mold 7, the recess inside the guide frame 801 limits the movement of the protrusions on the sides of the shunt plate 809, the first spring seat 810 is compressed under pressure, the piston plate 804 extrudes the release agent in the fixed box 805 through the second one-way valve 808 into the shunt plate 809, and into the ejector rod 811, so that the internal pressure continues to increase, so that the first spray head 814 can be extruded from the inside of the ejector rod 811, and the outlet of the first spray head 814 is inclined, so that the inner wall of the movable mold 7 can be sprayed and coated, and the second spray head 815 can be used to spray and coat the surface of the fixed mold 2, so that the mold is automatically coated with release agent after demolding without adding other additional equipment, ensuring the quality and precision of the non-ferrous metal parts during continuous casting, and at the same time, the driving plate 803 pushes the sliding plate 1002 through the connecting rod 1001, and the limiting strip 1003 limits the movement direction of the sliding plate 1002, so that it can only move vertically, so that when the connecting rod 1001 drives the sliding plate 1002 to move downward, all the ejector rods 811 can be rotated through the toothed plate 1004 and the toothed ring 1005, so that the spraying range of the first spray head 814 can be expanded to cover the inner wall of the movable mold 7, which is beneficial to improve the uniformity of spraying, and when the ejector rod 811 rotates, the centrifugal force can also help the first spray head 814 to smoothly move out of the ejector rod 811, ensuring the normal work of the first spray head 814;

[0037] Finally, when the electric push rod 802 drives the driving plate 803 to move back after coating, the extension spring 813 can pull the first spray head 814 under the limitation of the partition plate 812, so that it automatically retracts into the ejector rod 811, avoiding damage caused by collision with the movable mold 7, and the end cover 909 also rotates to shield the end of the ejector rod 811, and as the space between the fixed box 805 and the piston plate 804 gradually increases, the release agent in the liquid storage tank 807 can be automatically added to the fixed box 805 through the first one-way valve 806, without the need for frequent manual replenishment, which is efficient and convenient.

[0038] It should be noted that in this text, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment.

[0039] The principles and implementation manners of the present application are described by using specific examples in the present application, and the above examples are only used to help understand the method of the present application and its core idea. The above description is only the preferred implementation manner of the present application, and it should be noted that, due to the limited expression of the text, there are objectively infinite specific structures, and for ordinary skilled persons in the technical field, some improvements, refinements or changes can be made without departing from the principles of the present application, and the above technical features can also be combined in an appropriate manner; the improvements, refinements, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, shall be regarded as the protection scope of the present application.

Claims

1. A high-precision die-casting apparatus for non-ferrous metal casting, characterized in that, Include frame (1) and spray assembly (8), the middle part of the frame (1) is slidably connected with the driving seat (6), the spray assembly (8) is arranged on one side of the driving seat (6), and the spray assembly (8) comprises a guide frame (801), one side of the driving seat (6) is provided with the guide frame (801), and the inside of the guide frame (801) is fixedly provided with an electric push rod (802), one end of the electric push rod (802) is provided with a driving plate (803), one side of the driving plate (803) is fixedly provided with a piston plate (804), one side of the piston plate (804) is slidably connected with a fixed box (805), the top of the fixed box (805) is provided with a first check valve (806), and the top of the first check valve (806) is connected with a liquid storage tank (807) through a pipeline, one side of the middle part of the fixed box (805) is provided with a second check valve (808), and one end of the second check valve (808) is connected with a flow dividing plate (809), the upper and lower ends of one side of the flow dividing plate (809) are provided with a first spring seat (810), and the other side of the flow dividing plate (809) is rotatably connected with a jacking rod (811), one end of the jacking rod (811) is internally provided with a partition plate (812), both sides of the partition plate (812) are fixedly provided with a tension spring (813), and the end of the tension spring (813) is fixedly provided with a first spray head (814), one end of the jacking rod (811) is provided with a second spray head (815), the other end of the jacking rod (811) is provided with a protection assembly (9) outside, and the protection assembly (9) comprises a fixed ring (901), the outer circumferential surface of the jacking rod (811) is fixedly provided with the fixed ring (901), one side of the fixed ring (901) is provided with a second spring seat (902), the end of the second spring seat (902) is fixedly provided with a sliding sleeve (903), one side of the sliding sleeve (903) is rotatably connected with a support plate (904), the other side of the sliding sleeve (903) is fixedly provided with a limiting plate (905), the inside of the limiting plate (905) is provided with a guide groove (906), the inside of the guide groove (906) is slidably connected with a sliding column (907), the end of the sliding column (907) is fixedly provided with a rotating shaft (908), and one end of the rotating shaft (908) is provided with an end cover (909).

2. The high-precision die casting apparatus for non-ferrous metals according to claim 1, characterized by The flow dividing plate (809) is slidably connected with the guide frame (801), and the jacking rod (811) is arranged in an array on one side of the flow dividing plate (809).

3. The high-precision die casting apparatus for non-ferrous metals according to claim 1, characterized in that, The first spray head (814) is slidably connected with the jacking rod (811), and the jacking rod (811) is slidably connected with the moving die (7).

4. The high-precision die casting apparatus for non-ferrous metals according to claim 1, characterized in that, One end of the inside of the frame (1) is provided with a fixed die (2), and the other end of the outside of the frame (1) is fixedly provided with a double-shaft motor (3), the output shaft of the double-shaft motor (3) is connected with a gear reversing device (4), one end of the output shaft of the gear reversing device (4) is provided with a screw rod (5), the screw rod (5) is threadedly connected with the driving seat (6), and the other side of the driving seat (6) is fixedly provided with a moving die (7).

5. The high-precision die casting apparatus for non-ferrous metals according to claim 4, characterized in that, The rotating shaft (908) is rotationally connected with the jacking rod (811), and the jacking rod (811) is slidingly connected with the sliding sleeve (903).

6. The high-precision die casting apparatus for non-ferrous metals according to claim 5, wherein The bottom of the driving plate (803) is connected with an equal distribution assembly (10), the equal distribution assembly (10) comprises a connecting rod (1001), the bottom of the driving plate (803) is rotationally connected with the connecting rod (1001), the lower end of the connecting rod (1001) is rotationally connected with a sliding plate (1002), and one side of the sliding plate (1002) is slidingly connected with a limiting strip (1003).

7. The high-precision die casting apparatus for non-ferrous metals according to claim 6, wherein The limiting strip (1003) is in isosceles trapezoidal section, and the limiting strip (1003) is fixedly connected with the flow divider (809).

8. The high-precision die casting apparatus for non-ferrous metals according to claim 7, characterized in that, The two sides of the sliding plate (1002) are symmetrically provided with toothed plates (1004), one side of the toothed plate (1004) is engaged with a toothed ring (1005), and the toothed ring (1005) is fixedly connected with the jacking rod (811).

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