Movable feeding device of die-casting machine

Abstract

The utility model provides a movable feeding device of a die-casting machine, which relates to the technical field of feeding devices of die-casting machines, and comprises a charging barrel, a plurality of feeding ports are arranged on the charging barrel, a movable mounting table is arranged on one side of the charging barrel, a plurality of guide rails are mounted on the mounting table, and the guide rails are arranged on the charging barrel. The length direction of the guide rails is parallel to the length direction of the mounting table, the multiple guide rails are slidably connected with sliding bases, and the top sides of the multiple sliding bases are fixedly connected with moving frames. The plurality of sliding seats are connected through the connecting structure, and the plurality of sliding seats and the moving frame are driven to move through the displacement assembly, so that a specific number of heating cylinder assemblies can be moved to the position corresponding to the feeding port, and the amount of materials contained in the hopper is specific; and therefore, the quantity of the materials which are heated and melted by the heating cylinder assembly and enter the feeding opening is specific, the situation that the materials are too many or too few is greatly avoided, and the effect of follow-up workpiece die casting is good.

Description

Technical Field

[0001] This utility model relates to the technical field of feeding devices for die casting machines, specifically a mobile feeding device for a die casting machine. Background Technology

[0002] Liquid forging equipment generally refers to die casting machines, which are machines used for pressure casting. They include both hot and cold pressure chambers. Under pressure, the die casting machine injects molten metal into a mold to cool and solidify. After the mold is opened, a solid metal casting is obtained. It was originally used for die casting lead type. Die casting machines are generally divided into cold die casting machines and hot die casting machines. They are generally used for casting parts made of low-melting-point materials such as zinc alloys and magnesium alloys. The basic working principle of a die casting machine is to inject molten metal into a mold through an injection rod under pressure to cool and solidify. This process is usually called injection molding.

[0003] To heat and melt materials, they need to be fed into the cylinder. Traditional feeding methods typically involve connecting a large hopper to the cylinder, and then using gravity or mechanical devices such as vibrating feeders to transport the material into the cylinder. This method usually involves continuously feeding material into the cylinder, making it difficult to precisely control the amount of material entering the die-casting machine's molding components. Too much material leads to waste, while too little material affects the die-casting effect. Therefore, a mobile feeding device for die-casting machines is needed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a mobile feeding device for a die-casting machine, which aims to solve the problems in the prior art.

[0005] To achieve the above objectives, one embodiment of the present invention provides a mobile feeding device for a die-casting machine, comprising:

[0006] The material cylinder has multiple feeding ports.

[0007] An installation platform is set on one side of the material cylinder. The length direction of the installation platform is perpendicular to the length direction of the material cylinder. Multiple guide rails are evenly installed on the installation platform. The length direction of the guide rails is parallel to the length direction of the installation platform. Slide seats are slidably connected to the multiple guide rails. Movable frames are fixedly connected to the top side of the multiple slide seats. A detection component is provided between each movable frame and the guide rail. The detection component is used to detect the position of the movable frame.

[0008] Multiple heating cylinder assemblies are connected to a movable frame, and each heating cylinder assembly corresponds to a movable frame.

[0009] A plurality of hoppers are connected with the heating cylinder assembly, and each of the hoppers is connected with the heating cylinder assembly, and each of the plurality of hoppers is provided with a solenoid valve;

[0010] A plurality of connecting structures are connected with the sliding seats, and each of the connecting structures is connected with the sliding seat, and the connecting structure is used for connecting two adjacent sliding seats;

[0011] A displacement assembly is arranged on the mounting table, the displacement assembly is connected with one of the sliding seats at the edge, and the displacement assembly is used for driving the sliding seat to move;

[0012] A controller is arranged on the mounting table, and the solenoid valve, the detection assembly, the heating cylinder assembly and the displacement assembly are electrically connected with the controller, the controller is used for receiving the signal of the detection assembly and controlling the solenoid valve, the heating cylinder assembly and the displacement assembly.

[0013] Preferably, the connecting structure comprises a first motor, a rotating clamping plate and a clamping connecting plate, the first motor is installed on one side of the sliding seat, the rotating clamping plate is connected with the output end of the first motor, the clamping connecting plate is installed on the side of the sliding seat away from the first motor, and the clamping connecting plate corresponds to the position of the rotating clamping plate.

[0014] Preferably, the detection assembly comprises a detection rod structure, a component mounting plate and a limit switch, the detection rod structure is installed on the moving frame, the component mounting plate is connected with the end of the guide rail, the limit switch is installed on the component mounting plate, and the limit switch corresponds to the position of the detection rod structure.

[0015] Preferably, the detection rod structure comprises a movable rod, a threaded rod, a contact extrusion block and a buffer spring, the movable rod penetrates through one side of the moving frame and is in sliding connection with the moving frame, the threaded rod is connected with the end of the movable rod, the contact extrusion block is in threaded connection with the threaded rod, the buffer spring is sleeved on the outer surface of the movable rod, one end of the buffer spring is in abutment with the contact extrusion block, and the other end of the buffer spring is in abutment with the moving frame.

[0016] Preferably, a height adjusting assembly is arranged below the mounting table, the height adjusting assembly is used for adjusting the height of the mounting table, and the height adjusting assembly comprises four receiving tubes, four extension rods and a height adjusting structure, the four receiving tubes are respectively installed at the four corners of the mounting table, the four extension rods are located in the interiors of the receiving tubes and are in sliding connection with the receiving tubes, the interiors of the four receiving tubes are in sliding connection with the extension rods, the bottom ends of the four extension rods are fixedly connected with four moving discs, the bottom sides of the four moving discs are fixedly installed with four moving wheels, and the height adjusting structure is arranged on the bottom side of the mounting table.

[0017] Preferably, the height adjusting structure comprises a hydraulic cylinder, a moving sleeve and support rods, the hydraulic cylinder is installed at the middle position of the bottom side of the mounting table, the moving sleeve is connected with the output end of the hydraulic cylinder, the support rods are four in number, the top ends of the four support rods are hingedly connected with the moving sleeve, the bottom ends of the support rods are hingedly connected with the moving disc, and the support rods are in one-to-one correspondence with the moving disc.

[0018] Preferably, the displacement assembly comprises a second motor, a screw rod and a connecting frame, the second motor is installed on the mounting table, the screw rod is connected with the output end of the second motor, and the connecting frame is threadedly connected with the screw rod and connected with one of the sliding seats at the edge.

[0019] Preferably, the heating cylinder assembly comprises a conveying cylinder, heating sleeves, a screw conveying assembly and a discharge port, the conveying cylinder is connected with the moving frame, the heating sleeves are multiple in number, the multiple heating sleeves are uniformly and circumferentially arranged on the outer circumferential surface of the conveying cylinder, the interiors of the multiple heating sleeves are all provided with heating coils, the multiple heating sleeves are all provided with temperature measuring rods, the interiors of the multiple temperature measuring rods are all provided with temperature sensors, the screw conveying assembly is arranged on the conveying cylinder and used for conveying the materials in the conveying cylinder to the outside, the screw conveying assembly is electrically connected with the controller, and the discharge port is arranged at the end position of the conveying cylinder and inclined downward in the discharging direction.

[0020] Preferably, the end positions of the guide rails are connected with magnets, and the sliding seats and the magnets are connected together by magnetic adsorption.

[0021] Compared with the prior art, the utility model has the advantages that:

[0022] 1、 through connecting structure to connect multiple sliding seats, and through displacement assembly to drive multiple sliding seats and moving frame to move, so that specific number of heating cylinder assemblies can be moved to positions corresponding to the feeding port, the amount of materials contained in the hopper is specific, so that the amount of materials heated and melted by the heating cylinder assemblies and entering the feeding port is specific, and the situation of too much or too little materials is greatly avoided, and the effect of subsequent die casting workpieces is relatively good.

[0023] 2、 through setting controller and detection assembly, materials in the heating cylinder assemblies can be automatically heated and melted when a proper number of heating cylinder assemblies are moved to specific positions, and the materials after heating and melting can be automatically conveyed to the interiors of the feeding port, so that the whole material conveying operation is relatively simple. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a structural schematic view of the utility model;

[0025] Figure 2 It is the overhead structure schematic view of the utility model;

[0026] Figure 3 It is the first visual angle structure schematic view of the installation platform of the utility model;

[0027] Figure 4 It is the second visual angle structure schematic view of the installation platform of the utility model;

[0028] Figure 5 It is the first visual angle structure schematic view of the heating cylinder assembly of the utility model;

[0029] Figure 6 It is the second visual angle structure schematic view of the heating cylinder assembly of the utility model;

[0030] Figure 7 It is the explosion structure schematic view of the detection rod structure of the utility model;

[0031] Figure 8 It is the control principle schematic view of the utility model.

[0032] In the drawing: 10, material cylinder; 11, feeding opening; 20, installation platform; 21, guide rail; 22, sliding seat; 23, moving frame; 231, movable rod; 232, threaded rod; 233, contact extrusion block; 234, buffer spring; 24, component mounting plate; 25, limit switch; 26, motor two; 27, screw rod; 28, connecting frame; 29, magnet; 30, heating cylinder assembly; 31, conveying cylinder; 32, heating sleeve; 33, temperature measuring stick; 34, screw conveying assembly; 35, discharge port; 40, hopper; 41, electromagnetic valve; 50, connecting structure; 51, motor one; 52, rotating clamping plate; 53, clamping connecting plate; 60, controller; 70, height adjusting assembly; 71, storage tube; 72, extension rod; 73, moving disc; 74, moving wheel; 75, hydraulic cylinder; 76, moving sleeve; 77, support pull rod. DETAILED DESCRIPTION

[0033] The utility model will be further described below in combination with the drawings.

[0034] As Figures 1 to 8As shown, a mobile feeding device for a die-casting machine includes a material cylinder 10 with multiple feeding ports 11. A movable mounting platform 20 is provided on one side of the material cylinder 10, and multiple guide rails 21 are mounted on the mounting platform 20. The length direction of the guide rails 21 is parallel to the length direction of the mounting platform 20. Each guide rail 21 is slidably connected to a slide block 22, and each slide block 22 is fixedly connected to a movable frame 23. Each movable frame 23 is connected to a heating cylinder assembly 30, and the number of heating cylinder assemblies 30 corresponds to the number of feeding ports 11. The heating cylinder assemblies 30 and the feeding ports 11 are in one-to-one correspondence. Each of the three components is connected to a hopper 40, and each of the hoppers 40 is equipped with a solenoid valve 41. Each of the multiple slides 22 is equipped with a connecting structure 50, which is used to connect two adjacent slides 22. The mounting platform 20 is equipped with a displacement component, which is connected to one of the slides 22 at the outermost edge. The displacement component is used to move the slide 22. Each moving frame 23 is equipped with a detection component between it and the guide rail 21. The detection component is used to detect the position of the moving frame 23. The mounting platform 20 is equipped with a controller 60, which is used to receive signals from the detection component and control the solenoid valve 41 and the heating cylinder assembly 30.

[0035] It should be noted that the material cylinder 10 is connected to the die-casting molding module of the die-casting machine. The die-casting molding module of the die-casting machine includes components such as a moving mold and a fixed mold. The material cylinder 10 is used to transport the raw material into the die-casting molding unit of the die-casting machine and process it into workpieces. The heating cylinder assembly 30 corresponds one-to-one with the feeding port 11. Its structural schematic diagram is shown below. Figure 1 and Figure 2 As shown.

[0036] like Figures 3-6 As shown, the connection structure 50 includes a motor 51 installed on one side of the slide 22. The output end of the motor 51 is connected to a rotating clamping plate 52. A U-shaped clamping connecting plate 53 is fixedly connected to the side of the slide 22 away from the motor 51. The rotating clamping plate 52 and the clamping connecting plate 53 are positioned correspondingly. The size of the rotating clamping plate 52 is adapted to the internal size of the clamping connecting plate 53.

[0037] When connecting two adjacent slides 22, the motor 51 installed on one slide 22 is started. At this time, the rotating plate 52 will rotate and lock into the interior of the clamping connecting plate 53 connected to the other slide 22, thus connecting the two slides 22. When one slide 22 moves, the other slide 22 moves simultaneously under the connection of the clamping connecting plate 53 and the rotating plate 52.

[0038] It should be noted that the motor 51 is a motor with self-locking function, which can prevent the rotating clamping plate 52 from rotating again after rotating to the appropriate angle, thereby ensuring the stability of the rotating clamping plate 52 after rotating to a specific angle. The plurality of motors 51 are sequentially marked as motor ①, motor ②, motor ③, etc. according to the distance from the displacement assembly. The motor 51 closest to the displacement assembly is motor ①. When starting the motor 51, it is started in sequence according to the serial number of the motor 51. The motor 51 can be electrically connected with the controller 60 to automatically control the starting order and quantity of the motor 51.

[0039] As shown in Figures 3-6 The detection assembly includes a detection rod structure connected with the moving frame 23 and a component mounting plate 24 connected with the guide rail 21. The component mounting plate 24 is provided with a limit switch 25, which is electrically connected with the controller 60 and corresponds to the position of the detection rod structure.

[0040] The detection rod structure includes a movable rod 231 slidably connected with the moving frame 23. The movable rod 231 has a T-shaped cross section. The end of the movable rod 231 is fixedly connected with a threaded rod 232. The outer surface of the threaded rod 232 is threadedly connected with a contact extrusion block 233, which corresponds to the position of the limit switch 25. The outer surface of the movable rod 231 is sleeved with a buffer spring 234. One end of the buffer spring 234 is in contact with the contact extrusion block 233, and the other end of the buffer spring 234 is in contact with the moving frame 23, so that the buffer spring 234 can elastically deform with the movement of the contact extrusion block 233.

[0041] During the movement of the moving frame 23 driving the heating cylinder assembly 30, the movable rod 231 and the contact extrusion block 233 move accordingly. When the contact extrusion block 233 contacts the limit switch 25, the limit switch 25 will generate a signal and transmit it to the controller 60. At this time, the controller 60 will control the electromagnetic valve 41 to open so that the material in the hopper 40 enters the inside of the heating cylinder assembly 30. At this time, the controller 60 will control the heating cylinder assembly 30 to work and heat and melt the material. The contact extrusion block 233 is threadedly connected with the threaded rod 232, so that the operation of installing and dismounting the contact extrusion block 233 is relatively simple. When the elasticity of the buffer spring 234 decreases or is damaged, it is convenient to replace the buffer spring 234. During this process, the controller 60 only controls the heating cylinder assembly 30 corresponding to the position of the limit switch 25 generating a signal to work, and the remaining non-moving heating cylinder assemblies 30 do not work. That is, when one limit switch 25 generates a signal, the controller 60 controls the corresponding electromagnetic valve 41 to open.

[0042] It should be noted that the component mounting plate 24 is installed at the end position of the guide rail 21, and the component mounting plate 24 is close to the barrel 10. When the limit switch 25 is in contact with the contact extrusion block 233, the elastic spring 234 will be elastically deformed, avoiding the case that the limit switch 25 is easily damaged due to the rigid contact between the contact extrusion block 233 and the limit switch 25, and ensuring the service life of the limit switch 25.

[0043] As shown in Figure 1 , Figure 3 and Figure 4 , the lower portion of the mounting table 20 is provided with a height adjusting assembly 70 for adjusting the height of the mounting table 20. The height adjusting assembly 70 includes four receiving tubes 71 installed at the four corners of the mounting table 20. The interiors of the four receiving tubes 71 are each slidingly connected with an extension rod 72. The bottom ends of the four extension rods 72 are each fixedly connected with a moving disc 73. The bottom sides of the four moving discs 73 are each fixedly installed with a moving wheel 74. The bottom side of the mounting table 20 is provided with a height adjusting structure for adjusting the positions of the moving discs 73 and the moving wheels 74.

[0044] The height adjusting structure includes a hydraulic cylinder 75 installed at the middle portion of the bottom side of the mounting table 20. The output end of the hydraulic cylinder 75 is fixedly connected with a moving sleeve 76. The moving sleeve 76 is hingedly connected with four support pull rods 77. The bottom ends of the support pull rods 77 are hingedly connected with the moving discs 73. The support pull rods 77 correspond one-to-one to the moving discs 73.

[0045] When it is necessary to adjust the height of the mounting table 20, the hydraulic cylinder 75 is started to drive the moving sleeve 76 to move. At this time, the four moving discs 73 are simultaneously driven by the four moving wheels 74 under the action of the support pull rods 77, and the extension rods 72 will move in the process. The extension rods 72 are adjusted to extend from the interiors of the receiving tubes 71 by a suitable length, so as to adjust the distance between the moving wheels 74 and the bottom side of the mounting table 20, thereby adjusting the height of the mounting table 20.

[0046] It should be noted that the moving wheels 74 are self-locking moving wheels, which can be locked after the mounting table 20 is moved to a suitable position by the moving wheels 74, thereby avoiding rotation or movement of the moving wheels 74, and further ensuring the stability of the mounting table 20. Part of the hydraulic cylinder 75 is located in the interior of the moving sleeve 76, and the inner diameter of the moving sleeve 76 is greater than the maximum diameter of the hydraulic cylinder 75, which can ensure smooth movement of the moving sleeve 76 and avoid interference between the moving sleeve 76 and the hydraulic cylinder 75 during movement. The moving sleeve 76 can also play a certain protective role for the hydraulic cylinder 75.

[0047] The displacement assembly comprises a second motor 26 mounted on the mounting table 20, the second motor 26 is electrically connected with the controller 60, and the output end of the second motor 26 is fixedly connected with a lead screw 27, the outer surface of the lead screw 27 is threadedly connected with a connecting frame 28, and the connecting frame 28 is connected with one of the sliding seats 22 located at the edge.

[0048] When it is necessary to adjust the position of the heating cylinder assembly 30, the second motor 26 is started to rotate the lead screw 27, at this time, the connecting frame 28 drives one of the sliding seats 22 to move, and under the action of the connecting structure 50, the plurality of sliding seats 22 move together, so that the plurality of moving frames 23 drive the plurality of heating cylinder assemblies 30 to move simultaneously.

[0049] As shown in the drawings, Figures 2-6 The heating cylinder assembly 30 comprises a conveying cylinder 31 connected with the moving frame 23, the length direction of the conveying cylinder 31 is perpendicular to the length direction of the barrel 10, a plurality of heating sleeve pipes 32 are uniformly and circumferentially arranged on the outer circumferential surface of the conveying cylinder 31, a heating coil is arranged in each of the plurality of heating sleeve pipes 32, the heating coil is electrically connected with the controller 60, a temperature measuring rod 33 is arranged on each of the plurality of heating sleeve pipes 32, a temperature sensor is arranged in the temperature measuring rod 33, the temperature sensor is used to measure the temperature of the heating sleeve pipe 32, so that the inside of the conveying cylinder 31 is kept at a suitable temperature, thereby better heating and melting operation of the material in the conveying cylinder 31 can be achieved, a screw conveying assembly 34 is arranged on the conveying cylinder 31, the screw conveying assembly 34 is used to convey the material in the conveying cylinder 31 to the outside, the screw conveying assembly 34 is electrically connected with the controller 60, so that the controller 60 can control the screw conveying assembly 34 to start and work, thereby conveying the material in the conveying cylinder 31, and an outlet 35 is arranged at the end of the conveying cylinder 31, the discharging direction of the outlet 35 is inclined downward.

[0050] When the material enters the inside of the conveying cylinder 31, the controller 60 controls the heating coil to start, thereby heating and melting the material in the conveying cylinder 31, and in this process, the controller 60 controls the screw conveying assembly 34 to start and convey the material, and the material after heating and melting enters the inside of the feeding port 11 through the outlet 35.

[0051] It should be noted that the outer diameter of the outlet 35 is smaller than the inner diameter of the feeding port 11, and the outlet 35 corresponds to the position of the feeding port 11, so that the melted material flowing out of the outlet 35 can more accurately enter the inside of the feeding port 11, and the screw conveying assembly 34 belongs to the prior art, and its structure is not described in detail.

[0052] The end position of the guide rail 21 is connected with a magnet 29, the magnet 29 can be magnetically connected with the sliding seat 22, thereby ensuring the stability of the sliding seat 22 and avoiding the movement of the unused sliding seat 22.

[0053] The working principle is as follows:

[0054] When a specific amount of material is required for die casting operation, a proper number of connecting structures 50 are used to connect a proper number of sliding seats 22, and then the displacement assembly drives the proper number of sliding seats 22 to move, with the movement of the sliding seat 22, the moving frame 23 drives the movable rod 231 and the contact extrusion block 233 to move, when the contact extrusion block 233 contacts with the limit switch 25, the limit switch 25 will generate a signal and transmit it to the controller 60, at this time the controller 60 will control the motor 26 to stop working, so that the moving frame 23 and the heating cylinder assembly 30 stop moving, at this time the proper number of heating cylinder assemblies 30 move to the position corresponding to the feeding port 11, and the discharge port 35 corresponds to the position of the feeding port 11, then the controller 60 controls the electromagnetic valve 41 to open to make the material in the hopper 40 enter the inside of the heating cylinder assembly 30, and the controller 60 controls the heating coil to start, so as to heat and melt the material in the conveying cylinder 31, and in this process, the controller 60 controls the screw conveying assembly 34 to start and convey the material, and the material after heating and melting enters the inside of the feeding port 11 through the discharge port 35, so as to add a specific amount of material to the inside of the cylinder 10 and perform die casting operation, avoiding the situation that the material is too much or too little.

[0055] It is apparent for those skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended to encompass all changes falling within the meaning and range of equivalents of the elements of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

[0056] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A mobile charging device for a die casting machine, characterized in that, The utility model relates to a kind of material feeding device, including: Material cylinder (10), multiple feeding ports (11) are provided on material cylinder (10); Mounting table (20) is arranged at one side of material cylinder (10), the length direction of mounting table (20) is perpendicular to the length direction of material cylinder (10), multiple guide rails (21) are evenly mounted on mounting table (20), the length direction of guide rail (21) is parallel to the length direction of mounting table (20), multiple sliding bases (22) are slidably connected on multiple guide rails (21), multiple sliding bases (22) are fixedly connected with moving frame (23) on top side, detection assembly is arranged between each moving frame (23) and guide rail (21), and the detection assembly is used to detect the position of moving frame (23); Multiple heating cylinder assemblies (30) are connected with moving frame (23), and the heating cylinder assembly (30) is one-to-one corresponding with moving frame (23); Multiple hoppers (40) are connected with heating cylinder assembly (30), and the hopper (40) is one-to-one corresponding with heating cylinder assembly (30), and multiple hoppers (40) are all provided with electromagnetic valve (41); Multiple connection structures (50) are connected with sliding base (22), and the connection structure (50) is one-to-one corresponding with sliding base (22), and the connection structure (50) is used to connect two adjacent sliding bases (22); Displacement assembly is arranged on mounting table (20), and the displacement assembly is connected with one sliding base (22) at the edge, and the displacement assembly is used to drive sliding base (22) to move; Controller (60) is arranged on mounting table (20), and electromagnetic valve (41), detection assembly, heating cylinder assembly (30) and displacement assembly are electrically connected with controller (60), and the controller (60) is used to receive the signal of detection assembly and control electromagnetic valve (41), heating cylinder assembly (30) and displacement assembly.

2. A mobile charging device for a die casting machine according to claim 1, characterized in that: The connection structure (50) includes motor one (51), rotating clamping plate (52) and clamping connecting plate (53), the motor one (51) is installed at one side of sliding base (22), the rotating clamping plate (52) is connected with the output end of motor one (51), the clamping connecting plate (53) is installed at one side of sliding base (22) away from motor one (51), and the clamping connecting plate (53) corresponds with the position of rotating clamping plate (52).

3. A mobile charging device for a die casting machine according to claim 2, characterized in that: The detection assembly includes detection rod structure, component mounting plate (24) and limit switch (25), the detection rod structure is installed on moving frame (23), the component mounting plate (24) is connected with the end of guide rail (21), the limit switch (25) is installed on component mounting plate (24), and the limit switch (25) corresponds with the position of detection rod structure.

4. A mobile charging device for a die casting machine according to claim 3, characterized in that: The probe rod structure comprises a movable rod (231), a threaded rod (232), a contact extrusion block (233) and a buffer spring (234), the movable rod (231) penetrates through one side of the moving frame (23) and is in sliding connection with the moving frame (23), the threaded rod (232) is connected with the end of the movable rod (231), the contact extrusion block (233) is in threaded connection with the threaded rod (232), the buffer spring (234) is sleeved on the outer surface of the movable rod (231), one end of the buffer spring (234) is in abutment with the contact extrusion block (233), and the other end of the buffer spring (234) is in abutment with the moving frame (23).

5. A mobile charging device for a die casting machine according to claim 3, characterized in that: The mounting table (20) is provided below with a height adjusting assembly (70) for adjusting the height of the mounting table (20), the height adjusting assembly (70) comprises four receiving tubes (71), four extension rods (72) and a height adjusting structure, the four receiving tubes (71) are respectively arranged at the four corners of the mounting table (20), the four extension rods (72) are arranged in the receiving tubes (71) and are in sliding connection with the receiving tubes (71), the extension rods (72) are arranged in the receiving tubes (71) and are in sliding connection with the receiving tubes (71), the bottom ends of the four extension rods (72) are fixedly connected with four moving discs (73), the bottom sides of the four moving discs (73) are fixedly provided with four moving wheels (74), and the height adjusting structure is arranged at the bottom side of the mounting table (20) and is used for adjusting the height of the moving disc (73) and the moving wheel (74).

6. A mobile charging device for a die casting machine according to claim 5, characterized in that: The height adjusting structure comprises a hydraulic cylinder (75), a moving sleeve (76) and four support rods (77), the hydraulic cylinder (75) is arranged at the middle position of the bottom side of the mounting table (20), the moving sleeve (76) is connected with the output end of the hydraulic cylinder (75), the top ends of the four support rods (77) are hingedly connected with the moving sleeve (76), the bottom ends of the four support rods (77) are hingedly connected with the moving disc (73), and the support rods (77) correspond to the moving disc (73) in a one-to-one manner.

7. A mobile charging device for a die casting machine according to claim 5, characterized in that: The displacement assembly comprises a second motor (26), a lead screw (27) and a connecting frame (28), the second motor (26) is arranged on the mounting table (20), the lead screw (27) is connected with the output end of the second motor (26), the connecting frame (28) is in threaded connection with the lead screw (27), and the connecting frame (28) is connected with one of the sliding seats (22) at the edge.

8. A mobile charging device for a die casting machine according to claim 5, characterized in that: The heating cylinder assembly (30) comprises a conveying cylinder (31), heating sleeves (32), a screw conveying assembly (34) and a discharge port (35), the conveying cylinder (31) is connected with the moving frame (23), a plurality of the heating sleeves (32) are uniformly and circumferentially arranged on the outer circumferential surface of the conveying cylinder (31), the interiors of the plurality of the heating sleeves (32) are each provided with a heating coil, the plurality of the temperature measuring rods (33) are each provided with a temperature sensor, the screw conveying assembly (34) is arranged on the conveying cylinder (31) and is used for conveying the material in the conveying cylinder (31) to the outside, the screw conveying assembly (34) is electrically connected with the controller (60), and the discharge port (35) is arranged at the end position of the conveying cylinder (31) and is inclined downward in the discharging direction.

9. A mobile charging device for a die casting machine according to claim 8, characterized in that: The end position of the guide rail (21) is connected with a magnet (29), and the sliding seat (22) and the magnet (29) are connected together by magnetic adsorption.

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