A lubricating device in a crucible

Abstract

The utility model discloses a kind of lubricating devices in melting cup, including rack, oil-gas mixer, oil supply assembly, gas supply assembly and oil mist spraying part.Oil-gas mixer is set to rack, and oil-gas mixer is provided with oil inlet, air inlet and oil mist outlet;Oil supply assembly is set to rack, and oil supply assembly includes oil tank, oil quantitative pump and oil supply pipeline, and oil tank is communicated with oil inlet by oil supply pipeline, and oil quantitative pump is connected in oil supply pipeline and can drive oil from oil tank to be transported to oil-gas mixer;Gas supply assembly is set to rack, and gas supply assembly includes compressed air pump, air flow valve and gas supply pipeline, and compressed air pump is communicated with air inlet by gas supply pipeline, and air flow valve is connected in gas supply pipeline;Oil mist spraying part is provided with oil mist delivery channel and oil injection port, and oil injection port is communicated with the oil mist outlet of oil-gas mixer by oil mist delivery channel.

Description

Technical Field

[0001] This utility model relates to an oil spraying device, and more particularly to a lubrication device inside a melting cup. Background Technology

[0002] Die-casting machines contain a melting cup, whose inner cavity needs to be sprayed with lubricating oil before use. Some existing internal lubrication devices for melting cups can spray lubricating oil onto the cup. These devices include a frame, an oil-air mixer, an oil supply assembly, an air supply assembly, and an oil mist sprayer. The oil supply assembly uses an oil pump to drive liquid oil through the oil supply pipeline to the oil-air mixer, while the air supply assembly uses a compressed air pump to drive compressed air through the air supply pipeline to the oil-air mixer. The compressed air and lubricating oil then mix in the oil-air mixer to form a high-pressure oil mist, which is subsequently sprayed onto the inner cavity of the melting cup through the oil mist sprayer. Currently, with this type of internal lubrication device, the flow rate and oil content of the sprayed oil mist are difficult to control, making its use inflexible. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an internal lubrication device for a melting cup, which can conveniently control the flow rate and oil content of the sprayed oil mist.

[0004] The lubrication device inside the melting cup according to an embodiment of the present invention includes a frame, an oil-air mixer, an oil supply assembly, an air supply assembly, and an oil mist sprayer. The oil-air mixer is disposed on the frame and has an oil inlet, an air inlet, and an oil mist outlet. The oil supply assembly is disposed on the frame and includes an oil reservoir, an oil metering pump, and an oil supply pipeline. The oil reservoir is connected to the oil inlet via the oil supply pipeline, and the oil metering pump is connected to the oil supply pipeline and can drive oil from the oil reservoir to the oil-air mixer. The air supply assembly is disposed on the frame and includes a compressed air pump, an air flow valve, and an air supply pipeline. The compressed air pump is connected to the air inlet via the air supply pipeline, and the air flow valve is connected to the air supply pipeline. The oil mist sprayer has an oil mist delivery channel and an oil spray nozzle, and the oil spray nozzle is connected to the oil mist outlet of the oil-air mixer via the oil mist delivery channel.

[0005] The lubrication device inside the melting cup according to the embodiment of this utility model has at least the following beneficial effects: the oil supply component uses an oil metering pump to regulate the oil flow rate delivered to the oil-gas mixer, and the air supply component uses an added air flow valve to regulate the compressed air flow rate delivered to the oil-gas mixer, so that the component ratio in the oil mist generated at the oil-gas mixer can be flexibly adjusted; by adjusting the oil flow rate and the compressed air flow rate separately, the overall oil mist flow rate sprayed from the oil spraying component can be adjusted, making it more flexible and versatile.

[0006] According to some embodiments of the present invention, a control module is also included, which is disposed on the frame. The air supply assembly further includes an air flow meter, which is connected to the air supply pipeline and electrically connected to the control module.

[0007] According to some embodiments of the present invention, the air supply assembly further includes an air filter and an air on / off valve, the air filter and the air on / off valve being respectively connected to the air supply pipeline, and the air filter, the air on / off valve, the air flow valve and the air flow meter being arranged in sequence along the conveying direction of the air supply pipeline; the oil supply assembly further includes an oil on / off valve, the oil on / off valve being connected to the oil supply pipeline, and the oil on / off valve and the oil metering pump being arranged in sequence along the conveying direction of the oil supply pipeline.

[0008] According to some embodiments of the present invention, the oil-gas mixer is provided with a mixing hole inside, one end of the mixing hole forms the oil mist outlet, the oil inlet extends through the hole wall of the mixing hole, and the air inlet extends through the hole wall of the mixing hole.

[0009] According to some embodiments of the present invention, the oil storage tank has an oil storage cavity inside, an oil delivery hole is provided at the bottom of the oil storage tank, the oil supply pipeline is connected to the oil delivery hole, and a filter screen is provided at one end of the oil supply pipeline near the oil delivery hole.

[0010] According to some embodiments of the present invention, the upper end of the oil storage tank is detachably provided with an oil tank cover, and the side wall of the oil storage tank is provided with a level gauge.

[0011] According to some embodiments of the present invention, the oil mist spraying component is a pressure injection rod, and the oil mist conveying channel includes a linear conveying section and an annular conveying section. The linear conveying section extends along the length direction of the pressure injection rod, and the annular conveying section is arranged around the central axis of the pressure injection rod. One end of the linear conveying section is connected to the annular conveying section, and a plurality of oil injection nozzles are arranged around the central axis of the pressure injection rod. The oil injection nozzles are connected to the annular conveying section.

[0012] According to some embodiments of the present invention, the injection rod includes a rod body and an oil injection ring. The linear conveying section is disposed on the rod body, and the oil injection ring is sleeved on the outer periphery of the rod body. The oil injection ring and the rod body enclose each other to form the annular conveying section, and the oil injection ring has the oil injection port.

[0013] According to some embodiments of the present invention, the frame is provided with a pipeline arrangement block, and the oil supply pipeline and the air supply pipeline are both connected to the pipeline arrangement block.

[0014] According to some embodiments of the present invention, the frame includes a base, a mounting box, and a door. The mounting box is mounted on the upper side of the base, and an installation chamber is formed inside the mounting box. The side wall of the installation chamber has an opening. The door is pivotally connected to the mounting box and can be rotated to open or close the opening of the installation chamber. At least a portion of the oil supply assembly and at least a portion of the air supply assembly are located inside the installation chamber.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a front view schematic diagram of the lubrication device inside the melting cup according to an embodiment of the present utility model;

[0018] Figure 2 A perspective view of the lubrication device inside the melting cup according to an embodiment of this utility model after the oil tank cover is opened;

[0019] Figure 3 This is a cross-sectional schematic diagram of an oil-gas mixer according to an embodiment of the present invention;

[0020] Figure 4 This is a three-dimensional schematic diagram of the fuel spray component according to an embodiment of the present utility model;

[0021] Figure 5 This is a cross-sectional schematic diagram of the oil spray mist component according to an embodiment of the present utility model.

[0022] Figure label:

[0023] Frame 100, pipe arrangement block 110, base 120, mounting box 130, mounting chamber 131, box door 140;

[0024] Oil-gas mixer 200, oil inlet 210, air inlet 220, oil mist outlet 230, mixing port 240;

[0025] Oil supply assembly 300, oil storage tank 310, oil tank cover 311, level gauge 312, oil metering pump 320, oil on / off valve 330, filter screen 340;

[0026] Air supply assembly 400, compressed air pump 410, air flow valve 420, air flow meter 430, air filter 440, air on / off valve 450;

[0027] 500 oil mist spraying component, 510 oil mist conveying channel, 511 linear conveying section, 512 annular conveying section, 520 rod body, 530 oil spraying ring, 531 oil spraying nozzle;

[0028] Control module 600. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.

[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0033] Reference Figures 1 to 5This invention relates to a lubrication device for an internal molten cup, comprising a frame 100, an oil-air mixer 200, an oil supply assembly 300, an air supply assembly 400, and an oil mist sprayer 500. The oil-air mixer 200 is mounted on the frame 100 and includes an oil inlet 210, an air inlet 220, and an oil mist outlet 230. The oil supply assembly 300 is also mounted on the frame 100 and includes an oil reservoir 310, an oil metering pump 320, and an oil supply pipeline. The oil reservoir 310 is connected to the oil inlet 210 via the oil supply pipeline, and the oil metering pump 320 is connected to the oil supply pipeline and drives oil to be transported from the oil reservoir 310 to the oil-air mixer. 200; The air supply assembly 400 is mounted on the frame 100. The air supply assembly 400 includes a compressed air pump 410, an air flow valve 420, and an air supply pipeline. The compressed air pump 410 is connected to the air inlet 220 through the air supply pipeline, and the air flow valve 420 is connected to the air supply pipeline. The oil mist spraying component 500 is provided with an oil mist conveying channel 510 and an oil spray nozzle 531. The oil spray nozzle 531 is connected to the oil mist outlet 230 of the oil-air mixer 200 through the oil mist conveying channel 510.

[0034] The oil supply assembly 300 uses an oil metering pump 320 to regulate the oil flow rate delivered to the oil-air mixer 200, and the air supply assembly 400 uses an air flow valve 420 to regulate the compressed air flow rate delivered to the oil-air mixer 200. This allows for flexible adjustment of the component ratio in the oil mist generated at the oil-air mixer 200. By adjusting the oil flow rate and the compressed air flow rate separately, the overall flow rate of the oil mist sprayed from the oil spray nozzle 500 is adjusted, making it more flexible and versatile.

[0035] Specifically, the oil supply lines and gas supply lines are not shown in the diagram.

[0036] In the embodiments, reference is made to Figure 1 It also includes a control module 600, which is mounted on the frame 100. The air supply assembly 400 also includes an air flow meter 430, which is connected to the air supply pipeline and is electrically connected to the control module 600.

[0037] Compressed air provides the main propulsion for oil mist injection. When certain pipelines or injector ports 531 become blocked, the lubrication effect on the molten cup is significantly affected. Therefore, an air flow meter 430 is installed in the air supply pipeline. The air flow meter 430 can detect the compressed air flow passing through it and feed it back to the control module 600. When the control module 600 detects a significant decrease in air flow, it can determine that some pipelines or injector ports 531 are blocked, allowing users to easily observe and detect abnormalities in the lubrication equipment within the molten cup, thus improving operational stability.

[0038] Specifically, the control module 600 includes a PLC, which can be electrically connected to other structures of the oil supply assembly 300 and the air supply assembly 400 to control the operation of the lubrication device inside the melting cup as a whole.

[0039] Optionally, the control module 600 can also be equipped with a buzzer or warning light to facilitate timely observation of the operating status of the lubrication device inside the melting cup by staff.

[0040] It is conceivable that in other embodiments, the control module 600 may also be a structure with control circuitry, such as a microcomputer or a microcontroller, which is not limited here.

[0041] In the embodiments, reference is made to Figure 1 The air supply assembly 400 also includes an air filter 440 and an air on / off valve 450, which are respectively connected to the air supply pipeline. Along the conveying direction of the air supply pipeline, the air filter 440, the air on / off valve 450, the air flow valve 420, and the air flow meter 430 are arranged in sequence. The oil supply assembly 300 also includes an oil on / off valve 330, which is connected to the oil supply pipeline. Along the conveying direction of the oil supply pipeline, the oil on / off valve 330 and the oil metering pump 320 are arranged in sequence.

[0042] An air filter 440 is installed to filter compressed air, reducing impurities in the mixed oil mist. An air on / off valve 450 and an oil on / off valve 330 are installed; when the lubrication device inside the melting cup stops working, the operator can close these valves for improved safety. When the lubrication device needs to be started, the air on / off valve 450 and the oil on / off valve 330 are opened to allow the supply of compressed air and lubricating oil. The air filter 440, air on / off valve 450, air flow valve 420, and air flow meter 430 are arranged sequentially, as are the oil on / off valve 330 and oil metering pump 320, ensuring good stability in use and control.

[0043] In the embodiments, reference is made to Figure 3 The oil-gas mixer 200 has a mixing hole 240 inside, with an oil mist outlet 230 at one end. An oil inlet 210 extends through the wall of the mixing hole 240, and an air inlet 220 also extends through the wall of the mixing hole 240. The oil-gas mixer 200 described above has a simple structure and is easy to manufacture. When compressed air passes through the mixing hole 240, it disperses the oil, forming an oil mist.

[0044] Specifically, the oil inlet 210 is located between the air inlet 220 and the oil mist outlet 230, so that when compressed air flows near the oil inlet 210, it can create a negative pressure at the oil inlet 210, thereby improving the atomization and mixing effect of compressed air and oil.

[0045] In the embodiments, reference is made to Figure 2 The oil storage tank 310 has an oil storage cavity inside, and an oil delivery hole is provided at the bottom of the oil storage tank 310. The oil supply pipeline is connected to the oil delivery hole, and a filter screen 340 is provided at the end of the oil supply pipeline near the oil delivery hole.

[0046] By installing a filter screen 340 at one end of the oil supply line near the oil storage chamber, the lubricating oil in the oil storage chamber needs to pass through the filter screen 340 before entering the oil supply line, thereby reducing the risk of solid impurities in the lubricating oil entering the oil supply line.

[0047] In the embodiments, reference is made to Figure 2 The upper end of the oil reservoir 310 is detachably equipped with an oil tank cover 311, and a level gauge 312 is installed on the side wall of the oil reservoir 310. The level gauge 312 can display the remaining oil level in the oil reservoir 310, which is convenient for operators to observe. When the remaining oil level is low, operators can open the oil tank cover 311 and pour lubricating oil into the oil reservoir 310, and then close the oil tank cover 311 again. Specifically, the oil tank cover 311 is snapped onto the upper end of the oil reservoir 310.

[0048] In the embodiments, reference is made to Figure 4 and Figure 5 The fuel spray component 500 is a pressure injection rod. The fuel spray delivery channel 510 includes a linear delivery section 511 and an annular delivery section 512. The linear delivery section 511 extends along the length of the pressure injection rod, and the annular delivery section 512 is arranged around the central axis of the pressure injection rod. One end of the linear delivery section 511 is connected to the annular delivery section 512. Multiple fuel spray nozzles 531 are arranged around the central axis of the pressure injection rod, and the fuel spray nozzles 531 are connected to the annular delivery section 512.

[0049] The oil-gas mixer 200 delivers oil mist to the injection rod through the connecting pipeline. Then, the oil mist is delivered to the annular delivery section 512 through the linear delivery section 511, and finally sprayed out from the oil spray nozzle 531. When the injection rod extends into the inner cavity of the molten cup, the multiple oil spray nozzles 531 around the outer circumference of the injection rod can provide relatively uniform oil mist lubrication to the inner cavity of the molten cup, resulting in a good lubrication effect.

[0050] Specifically, the injection rod can be equipped with three, four or more injection ports 531, which can be selected by those skilled in the art according to actual needs.

[0051] In the embodiments, reference is made to Figure 4 and Figure 5 The injection rod includes a rod body 520 and an oil injection ring 530. A linear conveying section 511 is disposed on the rod body 520. The oil injection ring 530 is sleeved on the outer periphery of the rod body 520. The oil injection ring 530 and the rod body 520 enclose each other to form an annular conveying section 512. The oil injection ring 530 has an oil injection port 531.

[0052] The aforementioned injection rod facilitates the fabrication of the linear conveying section 511 and the annular conveying section 512, making manufacturing relatively convenient and the structure relatively simple. Specifically, a sealing ring is provided between the oil injection ring 530 and the rod body 520 to prevent oil mist leakage from the annular conveying section 512.

[0053] In this embodiment, the frame 100 is provided with a pipeline arrangement block 110, and both the oil supply pipeline and the air supply pipeline are connected to the pipeline arrangement block 110, which facilitates the centralized arrangement and organization of the oil supply pipeline and the air supply pipeline, resulting in a more compact and neat layout.

[0054] Specifically, the oil supply pipeline is connected to the oil storage tank 310, the oil metering pump 320, and the oil on / off valve 330 via pipe joints, and the oil supply pipeline is connected to the pipeline arrangement block 110 via pipe joints; the air supply pipeline is connected to the compressed air pump 410, the air flow valve 420, and the air flow meter 430 via pipe joints, and the oil supply pipeline is connected to the pipeline arrangement block 110 via pipe joints.

[0055] In the embodiments, reference is made to Figure 1 The frame 100 includes a base 120, a mounting box 130, and a door 140. The mounting box 130 is mounted on the upper side of the base 120. The mounting box 130 has a mounting chamber 131 inside. The side wall of the mounting chamber 131 has an opening. The door 140 is pivotally connected to the mounting box 130 and can be rotated to open or close the opening of the mounting chamber 131. Part of the oil supply component 300 and part of the air supply component 400 are located in the mounting chamber 131, thus providing good protection for the oil supply component 300 and the air supply component 400. When internal components need to be inspected, the door 140 can be rotated and opened.

[0056] Specifically, when this device is working, in the oil supply assembly 300, the oil on / off valve 330 is opened, and the lubricating oil in the oil storage tank 310 is delivered to the oil-air mixer 200 through the oil supply pipeline in sequence through the oil on / off valve 330, the oil metering pump 320 and the pipeline arrangement block 110; in the air supply assembly 400, the air on / off valve 450 is opened, and the compressed air delivered by the compressed air pump 410 is delivered to the oil-air mixer 200 through the air supply pipeline in sequence through the air filter 440, the air on / off valve 450, the air flow valve 420, the air flow meter 430 and the pipeline arrangement block 110.

[0057] Lubricating oil and compressed air are mixed and atomized by the oil-air mixer 200, and then the oil mist is delivered to the injection rod and sprayed out.

[0058] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0059] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A lubrication device for an internal molten cup, characterized in that, include: Rack (100); An oil-gas mixer (200) is disposed on the frame (100), and the oil-gas mixer (200) is provided with an oil inlet (210), an air inlet (220) and an oil mist outlet (230); An oil supply assembly (300) is disposed on the frame (100). The oil supply assembly (300) includes an oil storage tank (310), an oil metering pump (320), and an oil supply pipeline. The oil storage tank (310) is connected to the oil inlet (210) through the oil supply pipeline. The oil metering pump (320) is connected to the oil supply pipeline and can drive oil from the oil storage tank (310) to the oil-gas mixer (200). An air supply assembly (400) is disposed on the frame (100). The air supply assembly (400) includes a compressed air pump (410), an air flow valve (420), and an air supply pipeline. The compressed air pump (410) is connected to the air inlet (220) through the air supply pipeline, and the air flow valve (420) is connected to the air supply pipeline. The oil spraying component (500) is provided with an oil mist conveying channel (510) and an oil spray nozzle (531). The oil spray nozzle (531) is connected to the oil mist outlet (230) of the oil-gas mixer (200) through the oil mist conveying channel (510).

2. The lubrication device inside the melting cup according to claim 1, characterized in that: It also includes a control module (600) disposed on the frame (100), and the air supply assembly (400) further includes an air flow meter (430) connected to the air supply pipeline, and the air flow meter (430) is electrically connected to the control module (600).

3. The lubrication device inside the melting cup according to claim 2, characterized in that: The air supply assembly (400) further includes an air filter (440) and an air on / off valve (450), which are respectively connected to the air supply pipeline. Along the conveying direction of the air supply pipeline, the air filter (440), the air on / off valve (450), the air flow valve (420), and the air flow meter (430) are arranged in sequence. The oil supply assembly (300) further includes an oil on / off valve (330), which is connected to the oil supply pipeline. Along the conveying direction of the oil supply pipeline, the oil on / off valve (330) and the oil metering pump (320) are arranged in sequence.

4. The lubrication device inside the melting cup according to claim 1, characterized in that: The oil-gas mixer (200) is provided with a mixing hole (240) inside. One end of the mixing hole (240) forms the oil mist outlet (230). The oil inlet (210) extends through the hole wall of the mixing hole (240), and the air inlet (220) extends through the hole wall of the mixing hole (240).

5. The lubrication device inside the melting cup according to claim 1, characterized in that: The oil storage tank (310) has an oil storage cavity inside. An oil delivery hole is provided at the lower part of the oil storage tank (310). The oil supply pipeline is connected to the oil delivery hole. A filter screen (340) is provided at one end of the oil supply pipeline near the oil delivery hole.

6. The lubrication device inside the melting cup according to claim 5, characterized in that: The upper end of the oil storage tank (310) is detachably equipped with an oil tank cover (311), and the side wall of the oil storage tank (310) is equipped with a level gauge (312).

7. The lubrication device inside the melting cup according to claim 1, characterized in that: The oil mist spraying component (500) is a pressure injection rod. The oil mist conveying channel (510) includes a linear conveying section (511) and an annular conveying section (512). The linear conveying section (511) extends along the length of the pressure injection rod. The annular conveying section (512) is arranged around the central axis of the pressure injection rod. One end of the linear conveying section (511) is connected to the annular conveying section (512). A plurality of oil injection ports (531) are arranged around the central axis of the pressure injection rod. The oil injection ports (531) are connected to the annular conveying section (512).

8. The lubrication device inside the melting cup according to claim 7, characterized in that: The injection rod includes a rod body (520) and an oil injection ring (530). The linear conveying section (511) is disposed on the rod body (520). The oil injection ring (530) is sleeved on the outer periphery of the rod body (520). The oil injection ring (530) and the rod body (520) enclose each other to form the annular conveying section (512). The oil injection ring (530) has an oil injection port (531).

9. The lubrication device inside the melting cup according to claim 1, characterized in that: The frame (100) is provided with a pipeline arrangement block (110), and the oil supply pipeline and the air supply pipeline are both connected to the pipeline arrangement block (110).

10. The lubrication device inside the melting cup according to claim 2, characterized in that: The frame (100) includes a base (120), a mounting box (130), and a door (140). The mounting box (130) is mounted on the upper side of the base (120). An installation chamber (131) is formed inside the mounting box (130). The side wall of the installation chamber (131) has an opening. The door (140) is pivotally connected to the mounting box (130) and can be rotated to open or close the opening of the installation chamber (131). At least a portion of the oil supply assembly (300) and at least a portion of the air supply assembly (400) are located in the installation chamber (131).

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