Punch lubricating structure for aluminum alloy die-casting machine

Abstract

The punch lubricating structure for the aluminum alloy die-casting machine comprises a material pipe, the material pipe is installed on a movable die plate, the movable die plate is connected with a fixed die plate in a sliding mode through a guide column, and a jet-propelled stabilizing structure is arranged in the material pipe; the jet-propelled stabilizing structure comprises a surrounding jet structure used for releasing a gas column, a stabilizing structure matched with the surrounding jet structure and a sealing structure used for preventing materials in the material pipe from flowing back; the surrounding type air injection structure is arranged on the inner wall of the material pipe, the stabilizing structure is arranged on the connecting rod, and the sealing structure is arranged on a punch at the bottom of the connecting rod. By means of the mode, the punch lubricating structure for the aluminum alloy die-casting machine is of a jet-propelled stable structure, abrasion of a punch and other parts due to the fact that lubricating oil is not replaced in time can be avoided, and therefore the overall working efficiency and the service life of the aluminum alloy die-casting machine are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of die casting, in particular to a punch lubrication structure for an aluminum alloy die casting machine. Background Art

[0002] Aluminum alloy die-casting is a process of injecting molten aluminum alloy into a mold to manufacture complex-shaped parts by rapid prototyping. There are many types of equipment for aluminum alloy die-casting, involving different equipment from smelting, forming to post-processing. Combined with modern automation control technology, aluminum alloy die-casting can achieve high-efficiency and high-precision production, and is widely used in many fields such as automobiles, electronics, aerospace, etc.

[0003] In aluminum alloy die-casting machines, the punch is one of the important components. The molten aluminum alloy is quickly injected into the mold through the punch. During the die-casting process, friction will occur between the punch and the casting and the mold. Long-term use can easily cause wear of the punch and other components, thus affecting the overall working efficiency and service life of the equipment.

[0004] The existing aluminum alloy die-casting machines are designed with lubrication grooves around the punches. Lubricating oil or grease is stored in the grooves. When the punch moves, the lubricant in the lubrication grooves will be brought to the contact point between the punch and the die, effectively reducing friction. However, after long-term use, the lubricating oil will deteriorate and emulsify. If the deteriorated lubricating oil is not replaced in time, the wear of the punch and other components will be accelerated. Summary of the invention

[0005] The main technical problem solved by the present invention is to provide a punch lubrication structure for an aluminum alloy die-casting machine, which can avoid the wear of the punch and other parts caused by untimely replacement of lubricating oil.

[0006] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a punch lubrication structure for an aluminum alloy die-casting machine, comprising a material pipe, the material pipe is installed on a movable die plate, the movable die plate is slidably connected to a fixed die plate through a guide column, and a jet stabilizing structure is arranged in the material pipe;

[0007] The jet-type stabilizing structure includes a surrounding jet-type structure for releasing an air column, a stabilizing structure cooperating with the surrounding jet-type structure, and a sealing structure for preventing the material in the material pipe from flowing back;

[0008] The surrounding jet structure is arranged on the inner wall of the material pipe, the stabilizing structure is arranged on the connecting rod, and the sealing structure is arranged on the punch at the bottom of the connecting rod.

[0009] In a preferred embodiment of the present invention, the surround-type jet structure includes a plurality of planar jet groups with the same structure, and the plurality of planar jet groups are arranged in parallel between the injection hopper and the top of the material pipe.

[0010] In a preferred embodiment of the present invention, the plane jet group includes a plurality of nozzles and annular air pipes, wherein the plurality of nozzles are arranged in an array on the inner wall of the material pipe with the axis of the material pipe as the center, the nozzles are arranged to be inclined downward and are connected to the annular air pipe embedded in the side wall of the material pipe, and two adjacent annular air pipes are connected by a connecting pipe.

[0011] In a preferred embodiment of the present invention, the material pipe is located at the top of the injection hopper and an air injection machine is installed. The air injection machine penetrates the side wall of the material pipe through a pipeline and is connected to the annular air pipe at the top.

[0012] In a preferred embodiment of the present invention, the stabilizing structure includes a plurality of guide grooves, which are arranged in an array on the outer wall of the connecting rod with the axis of the connecting rod as the center, and the number of the guide grooves matches the number and position of the nozzles in each layer of the planar jet group.

[0013] In a preferred embodiment of the present invention, a plurality of force-bearing grooves are vertically arranged in the guide groove, and the force-bearing grooves are arranged to be inclined downward, and the inclination angle of the force-bearing grooves is the same as that of the nozzle.

[0014] In a preferred embodiment of the present invention, the sealing structure comprises a sealing ring, and the sealing ring is provided with a downwardly inclined chamfer.

[0015] In a preferred embodiment of the present invention, the chamfered outer edge is provided with a circle of circular arc outer edge opening upward.

[0016] The beneficial effects of the present invention are as follows: the present invention provides a punch lubrication structure for an aluminum alloy die-casting machine, which adopts a jet-type stable structure, and can avoid wear of the punch and other components due to untimely replacement of lubricating oil, thereby ensuring the overall working efficiency and service life of the aluminum alloy die-casting machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a sectional view of the main view of a punch lubrication structure for an aluminum alloy die-casting machine.

[0018] Figure 2 for Figure 1 A partial enlarged view.

[0019] The markings of the components in the accompanying drawings are as follows: 1. material pipe; 2. movable template; 3. fixed template; 4. guide column; 5. nozzle; 6. annular air pipe; 7. injection hopper; 8. gas injection machine; 9. guide groove; 10. force groove; 11. connecting rod; 12. punch; 13. sealing ring; 14. chamfer; 15. outer edge of the arc. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0021] See also Figure 1 and Figure 2 A punch lubrication structure for an aluminum alloy die-casting machine includes a material pipe 1, which is installed on a movable platen 2. The movable platen 2 is slidably connected to a fixed platen 3 through a guide column 4. A jet stabilizing structure is provided in the material pipe 1, which can avoid wear of the punch 12 and other components due to untimely replacement of lubricating oil, thereby ensuring the overall working efficiency and service life of the aluminum alloy die-casting machine.

[0022] The jet-type stabilizing structure includes a surrounding jet-type structure for releasing an air column, a stabilizing structure cooperating with the surrounding jet-type structure, and a sealing structure for preventing the material in the material pipe 1 from flowing back;

[0023] The surrounding jet structure is arranged on the inner wall of the material pipe 1 , the stabilizing structure is arranged on the connecting rod 11 , and the sealing structure is arranged on the punch 12 at the bottom of the connecting rod 11 .

[0024] The surround-type jet structure includes a plurality of plane jet groups with the same structure, and the plurality of plane jet groups are arranged in parallel between the injection hopper 7 and the top of the material pipe 1 .

[0025] The plane jet group includes a plurality of nozzles 5 and an annular air pipe 6. The plurality of nozzles 5 are arranged in an array on the inner wall of the material pipe 1 with the axis of the material pipe 1 as the center. The nozzles 5 are arranged to be tilted downward so that when the punch 12 is pressed down, a downward force is applied to it to increase its pressure.

[0026] It is communicated with the annular air pipe 6 embedded in the side wall of the material pipe 1, and two adjacent annular air pipes 6 are connected by a connecting pipe. The gas is evenly transported to each nozzle 5 through the annular air pipe 6, and is formed into an air column through the nozzle 5, which hits the force groove 10 on the connecting rod 11, so that the connecting rod 11 is controlled at the center of the material pipe 1 and does not contact the inner wall of the material pipe 1, thereby reducing the wear of the punch 12 and other components, thereby ensuring the overall working efficiency and service life of the aluminum alloy die-casting machine.

[0027] When injecting gas, the nozzle 5 is closed first, and after the annular air pipe 6 is filled with gas and the pressure at each nozzle 5 is the same, the nozzle 5 is opened for continuous gas injection. The gas injection machine 8 and the nozzle 5 are both controlled by an external control device.

[0028] The material pipe 1 is located at the top of the injection hopper 7 and an air injection machine 8 is installed. The air injection machine 8 penetrates the side wall of the material pipe 1 through a pipeline and is connected to the annular air pipe 6 at the top. The air injection machine 8 is used to inject gas into the annular air pipe 6 in the material pipe 1. After the gas enters the material pipe 1, it flows out through the opening at the top of the material pipe 1.

[0029] The stabilizing structure includes a plurality of guide grooves 9, which are arranged in an array on the outer wall of the connecting rod 11 with the axis of the connecting rod 11 as the center. The number of the guide grooves 9 matches the number and position of the nozzles 5 in each layer of the plane jet group. The guide grooves 9 cooperate with the nozzles 5 to guide the connecting rod 11.

[0030] A plurality of stress grooves 10 are vertically arranged in the guide groove 9, and the stress grooves 10 are tilted downward. The stress grooves 10 have the same inclination angle as the nozzle 5. An air column is formed by the nozzle 5 and hits the stress grooves 10, so that the connecting rod 11 is controlled at the center of the material tube 1 and does not contact the inner wall of the material tube 1, thereby reducing the wear of the punch 12 and other components, thereby ensuring the overall working efficiency and service life of the aluminum alloy die-casting machine.

[0031] The sealing structure includes a sealing ring 13 , on which a downwardly inclined chamfer 14 is provided. The chamfer 14 increases the contact area between the sealing ring 13 and the material, thereby reducing the reaction force caused by the material and reducing the probability of deformation of the sealing ring 13 .

[0032] The outer edge of the chamfer 14 is provided with a circle of arc outer edge 15 opening upwards, and the arc outer edge 15 facilitates the downward movement of the punch 12.

[0033] Compared with the prior art, the present invention provides a punch lubrication structure for an aluminum alloy die-casting machine. The lubrication structure adopts a jet-type stable structure, which can avoid wear of the punch and other components due to untimely replacement of lubricating oil, thereby ensuring the overall working efficiency and service life of the aluminum alloy die-casting machine.

[0034] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0035] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A punch lubrication structure for an aluminum alloy die-casting machine, comprising a material pipe, the material pipe being mounted on a movable die plate, the movable die plate being slidably connected to a fixed die plate via a guide column, characterized in that: A jet-type stabilizing structure is provided in the material pipe; The jet-type stabilizing structure includes a surrounding jet-type structure for releasing an air column, a stabilizing structure cooperating with the surrounding jet-type structure, and a sealing structure for preventing the material in the material pipe from flowing back; The surrounding jet structure is arranged on the inner wall of the material pipe, the stabilizing structure is arranged on the connecting rod, and the sealing structure is arranged on the punch at the bottom of the connecting rod.

2. According to claim 1, a punch lubrication structure for an aluminum alloy die-casting machine is characterized in that: The surround-type jet structure comprises a plurality of plane jet groups with the same structure, and the plurality of plane jet groups are arranged in parallel between the injection hopper and the top of the material pipe.

3. According to claim 2, a punch lubrication structure for an aluminum alloy die-casting machine is characterized in that: The plane jet group includes a plurality of nozzles and annular air pipes. The plurality of nozzles are arranged in an array on the inner wall of the material pipe with the axis of the material pipe as the center. The nozzles are arranged to be tilted downward and are connected to the annular air pipe embedded in the side wall of the material pipe. Two adjacent annular air pipes are connected by a connecting pipe.

4. According to claim 3, a punch lubrication structure for an aluminum alloy die-casting machine is characterized in that: The material pipe is located at the top of the injection hopper and an air injection machine is installed. The air injection machine penetrates the side wall of the material pipe through a pipeline and is connected to the annular air pipe at the top.

5. The punch lubrication structure for an aluminum alloy die-casting machine according to claim 4, characterized in that: The stabilizing structure comprises a plurality of guide grooves, which are arranged in an array on the outer wall of the connecting rod with the axis of the connecting rod as the center. The number of the guide grooves matches the number and position of the nozzles in each layer of the plane jet group.

6. The punch lubrication structure for an aluminum alloy die-casting machine according to claim 5, characterized in that: A plurality of force-bearing grooves are vertically arranged in the guide groove, and the force-bearing grooves are arranged to be inclined downward, and the inclination angle of the force-bearing grooves is the same as that of the nozzle.

7. The punch lubrication structure for an aluminum alloy die-casting machine according to claim 1, characterized in that: The sealing structure comprises a sealing ring, on which a downwardly inclined chamfer is provided.

8. The punch lubrication structure for an aluminum alloy die-casting machine according to claim 7, characterized in that: The chamfered outer edge is provided with a circle of arc outer edge opening upwards.

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