Automatic lubricating system for mixing head of foaming machine

Abstract

The utility model discloses an automatic lubricating system for a mixing head of a foaming machine, which belongs to the technical field of polyurethane foaming machines and comprises a storage barrel, an electric control box, an external power supply and a mixing head body of the foaming machine. According to the utility model, gas is introduced into the lubricating grease circulating pump through the gas path system pipeline to drive the lubricating grease circulating pump, the lubricating grease circulating pump is utilized to introduce lubricating grease in the storage barrel into the mixing head body of the foaming machine through the circulating grease inlet pipeline, and the lubricating grease is utilized to lubricate moving parts in the mixing head body of the foaming machine. Smooth movement of the mixing head body of the foaming machine is guaranteed, lubricated lubricating grease flows back into the storage barrel from the circulating grease return pipeline, impurities doped in the lubricating grease are filtered through the filter screen in the filter box, the impurities brought out when the mixing head body of the foaming machine is lubricated are prevented from entering the storage barrel, and the service life of the mixing head body is prolonged. And the lubricating effect of subsequent lubricating grease is ensured.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane foaming machine technology, and more specifically, to an automatic lubrication system for the mixing head of a foaming machine. Background Technology

[0002] In recent years, the application fields of polyurethane foam products produced by polyurethane foaming machines have become very wide. In the construction industry, polyurethane foaming machines can be used to produce thermal insulation materials, sound insulation materials, etc. In the automotive industry, they can be used to produce interior parts such as car seats and dashboards, improving comfort and safety. In the aerospace industry, they can be used to produce lightweight, high-strength sound insulation materials, thermal insulation materials, etc. The working principle of polyurethane foaming is to precisely measure and proportion two component liquids, A and B, and then use two high-precision metering pumps to separately deliver the A and B component liquids to the mixing head of the foaming machine. In the mixing head, the liquids are mixed under high pressure, resulting in a uniform mixture that is then sprayed out to form the desired polyurethane foam product. The mixing head, as the core part of the foaming machine, determines whether the machine can produce qualified products, and its smooth and efficient operation is also crucial for the normal production of products. Therefore, ensuring that the mixing head can work smoothly for a long time is particularly important throughout the entire polyurethane foam production process. To this end, we have proposed an automatic lubrication system for the mixing head of the foaming machine. Utility Model Content

[0003] In view of the problems mentioned in the background art above, the purpose of this utility model is to provide an automatic lubrication system for the mixing head of a foaming machine.

[0004] To solve the above problems, the present invention adopts the following technical solution:

[0005] An automatic lubrication system for a foaming machine mixing head includes a storage tank, an electrical control box, an external power supply, and a foaming machine mixing head body. The storage tank has a temperature control mechanism at its bottom. The foaming machine mixing head body has a grease inlet and a grease outlet. A grease circulation pump is fixedly installed inside the storage tank. A circulation grease inlet pipe is fixedly connected to the grease circulation pump, with its end extending to the outside of the storage tank and connected to the grease inlet. A circulation return grease pipe is fixedly connected to the grease outlet, with its end fixedly sleeved into the inner cavity of the storage tank. A filter mechanism is installed in the middle of the circulation return grease pipe. An air system pipe is fixedly connected to the grease circulation pump, and a control solenoid valve is installed in the middle of the air system pipe. A temperature sensor is fixedly installed inside the storage tank.

[0006] As a preferred embodiment of this utility model, the filtration mechanism includes a filter box fixedly sleeved in the middle section of the circulating grease return pipeline, a sealing door hinged to the outside of the filter box, and a filter screen fixedly sleeved in the inner cavity of the filter box.

[0007] As a preferred embodiment of this utility model, the temperature regulating mechanism includes a water storage tank fixedly connected to the bottom surface of the storage tank, a water pump fixedly installed on the top surface of the water storage tank, the input end of the water pump extending into the inner cavity of the water storage tank and fixedly connected to a suction pipe, the output end of the water pump fixedly connected to a distribution pipe, a plurality of heat exchange copper pipes fixedly connected to the side of the distribution pipe, the ends of the plurality of heat exchange copper pipes respectively penetrating the inner cavity of the storage tank and fixedly sleeved to the inner cavity of the water storage tank, a temperature-conducting fin fixedly sleeved on the side of the water storage tank, one end of the temperature-conducting fin extending into the inner cavity of the water storage tank, and a semiconductor cooling chip fixedly installed on the other end of the water storage tank, with heat dissipation fins fixedly connected to the heating surface of the semiconductor cooling chip.

[0008] In a preferred embodiment of this utility model, the electrical control box is electrically connected to the control solenoid valve, the semiconductor cooling chip, the temperature sensor, and the water pump.

[0009] In a preferred embodiment of this utility model, the external power supply is electrically connected to the control solenoid valve, the electrical control box, the semiconductor refrigeration chip, the temperature sensor, and the water pump.

[0010] As a preferred embodiment of this utility model, the inner cavity of the storage tank is provided with a lubricating medium.

[0011] As a preferred embodiment of this utility model, the inner cavity of the water storage tank is provided with cooling water.

[0012] The advantages of this utility model are:

[0013] (1) In this utility model, gas is introduced into the grease circulation pump through the air system pipeline to drive the grease circulation pump. The grease circulation pump introduces the grease in the storage tank into the foaming machine mixing head body through the circulation grease inlet pipe. The grease lubricates the moving parts in the foaming machine mixing head body, ensuring the smooth movement of the foaming machine mixing head body, avoiding jamming during operation, and extending the service life of the foaming machine mixing head body. The lubricated grease flows back to the storage tank through the circulation return grease pipe. At the same time, the impurities mixed in the grease are filtered through the filter screen in the filter box to prevent impurities brought out during the lubrication of the foaming machine mixing head body from entering the storage tank, ensuring the lubrication effect of subsequent grease. The entire lubrication process is fully automatic, with high lubrication efficiency, saving time and effort.

[0014] (2) In this utility model, the temperature of the grease in the storage tank is detected in real time by a temperature sensor. When the temperature of the grease in the storage tank increases due to hot weather, the lubrication effect of the grease deteriorates. At this time, the water in the storage tank is cooled by the cooperation of the semiconductor cooling chip and the heat-conducting fins. The cooling water is pumped into the water distribution pipe by the water pump, and the cooling water in the water distribution pipe is diverted into the heat exchange copper pipe. The cooling water in the heat exchange copper pipe exchanges heat with the grease in the inner cavity of the storage tank, thereby cooling the grease in the storage tank and ensuring that the grease is at a suitable working temperature, thus improving the working quality of the automatic lubrication system of the foaming machine mixing head. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the present invention;

[0017] Figure 3 This is a top view of the temperature control mechanism of this utility model;

[0018] Figure 4 This is a cross-sectional schematic diagram of the filter box of this utility model;

[0019] Figure 5 This utility model Figure 2 Enlarged diagram of point A in the diagram.

[0020] Explanation of the labels in the diagram:

[0021] 1. Storage tank; 2. Grease circulation pump; 3. Air system piping; 4. Control solenoid valve; 5. Electrical control box; 6. Grease inlet pipe; 7. Grease return pipe; 8. Filter mechanism; 9. Foaming machine mixing head body; 10. Grease inlet; 11. Grease outlet; 12. Temperature control mechanism; 13. External power supply; 14. Filter box; 15. Filter screen; 16. Sealing door; 17. Water storage tank; 18. Water pump; 19. Suction pipe; 20. Water distribution pipe; 21. Heat exchange copper pipe; 22. Temperature conductive fins; 23. Semiconductor cooling chip; 24. Heat dissipation fins; 25. Temperature sensor. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Example:

[0026] Please see Figure 1-5 An automatic lubrication system for a foaming machine mixing head includes a storage tank 1, an electrical control box 5, an external power supply 13, and a foaming machine mixing head body 9. A temperature regulating mechanism 12 is provided at the bottom of the storage tank 1. A grease inlet 10 and a grease outlet 11 are provided on the foaming machine mixing head body 9. A grease circulation pump 2 is fixedly installed in the inner cavity of the storage tank 1. A circulation grease inlet pipe 6 is fixedly connected to the grease circulation pump 2. The end of the circulation grease inlet pipe 6 extends to the outside of the storage tank 1 and is connected to the grease inlet 10. A circulation return grease pipe 7 is fixedly connected to the grease outlet 11. The end of the circulation return grease pipe 7 is fixedly sleeved into the inner cavity of the storage tank 1. A filter mechanism 8 is provided in the middle of the circulation return grease pipe 7. An air system pipe 3 is fixedly connected to the grease circulation pump 2. A control solenoid valve 4 is provided in the middle of the air system pipe 3. A temperature sensor 25 is fixedly installed in the inner cavity of the storage tank 1.

[0027] In this embodiment, the storage tank 1 can be a raw material tank with a specification of 20L and made of plastic resin. The grease circulation pump 2 is driven by pneumatic power. One end of the air system pipeline 3 is connected to a dry air supply device of 5 bar to 6 bar. The dry air is the power part of the grease circulation pump 2. The grease circulation pump 2 is driven by air pressure to achieve the circulation lubrication of grease.

[0028] For details, please refer to Figure 1 , Figure 2 and Figure 4The filtration mechanism 8 includes a filter box 14 fixedly sleeved in the middle section of the circulating grease return pipe 7. A sealing door 16 is hinged to the outside of the filter box 14, and a filter screen 15 is fixedly sleeved in the inner cavity of the filter box 14.

[0029] In this embodiment, the filter screen 15 is used to filter impurities mixed in with the lubricating medium, and the filtered impurities can be cleaned by opening the sealing door 16.

[0030] For details, please refer to Figure 2 , Figure 3 and Figure 5 The temperature control mechanism 12 includes a water tank 17 fixedly connected to the bottom of the storage tank 1. A water pump 18 is fixedly installed on the top surface of the water tank 17. The input end of the water pump 18 extends into the inner cavity of the water tank 17 and is fixedly connected to a suction pipe 19. The output end of the water pump 18 is fixedly connected to a distribution pipe 20. Multiple heat exchange copper pipes 21 are fixedly connected to the side of the distribution pipe 20. The ends of the multiple heat exchange copper pipes 21 pass through the inner cavity of the storage tank 1 and are fixedly sleeved to the inner cavity of the water tank 17. A heat-conducting fin 22 is fixedly sleeved on the side of the water tank 17. One end of the heat-conducting fin 22 extends into the inner cavity of the water tank 17. A semiconductor cooling chip 23 is fixedly installed on the other end of the water tank 17. A heat dissipation fin 24 is fixedly connected to the heating surface of the semiconductor cooling chip 23.

[0031] In this embodiment, the low temperature generated by the cooling surface of the semiconductor cooling chip 23 is conducted to the water in the inner cavity of the water storage tank 17 by the heat-conducting fins 22, thereby cooling the water in the water storage tank 17.

[0032] For details, please refer to Figure 2 , Figure 3 and Figure 5 The electrical control box 5 is electrically connected to the control solenoid valve 4, the semiconductor cooling chip 23, the temperature sensor 25, and the water pump 18.

[0033] In this embodiment, the electrical control box 5 is used to control the solenoid valve 4, the semiconductor cooling chip 23 and the water pump 18, and at the same time, the data detected by the temperature sensor 25 is processed.

[0034] For details, please refer to Figure 2 , Figure 3 and Figure 5 The external power supply 13 is electrically connected to the control solenoid valve 4, the electrical control box 5, the semiconductor cooling chip 23, the temperature sensor 25, and the water pump 18.

[0035] In this embodiment, the control solenoid valve 4, electrical control box 5, semiconductor cooling chip 23, temperature sensor 25 and water pump 18 are electrically powered by an external power supply 13.

[0036] For details, please refer to Figure 2 The inner cavity of storage tank 1 is equipped with a lubricating medium.

[0037] In this embodiment, the lubricating medium can be lubricating grease.

[0038] For details, please refer to Figure 2 The inner cavity of the water storage tank 17 is equipped with cooling water.

[0039] In this embodiment, the cooling water in the water storage tank 17 flows through the heat exchange copper pipe 21 to adjust the temperature of the lubricating medium in the storage tank 1, so that the lubricating medium is at a suitable working temperature.

[0040] Working Principle: During operation, the solenoid valve 4 and electrical control box 5 control the intake of external gas into the grease circulation pump 2. This gas drives the pump, which in turn draws grease from the storage tank 1 through the grease inlet pipe 6 into the mixing head body 9 of the foaming machine. The grease then lubricates the moving parts within the mixing head body 9. After lubrication, the grease returns to the storage tank 1 through the grease return pipe 7. Furthermore, the filter screen 15 in the filter box 14 filters out impurities from the grease, preventing impurities carried out during lubrication of the mixing head body 9 from entering the storage tank 1 and ensuring effective lubrication. Finally, the temperature sensor 25 monitors the storage tank in real time. When the temperature of the grease in storage tank 1 rises due to hot weather, its lubricating effect deteriorates. At this time, the semiconductor cooling chip 23 is energized to generate a low temperature on its cooling surface. The low temperature is then conducted to the water in the inner cavity of the water tank 17 by the heat-conducting fins 22, thereby cooling the water in the inner cavity of the water tank 17. Finally, the water pump 18 is started to guide the cooling water from the suction pipe 19 to the distribution pipe 20, and the cooling water in the distribution pipe 20 is diverted to the heat exchange copper pipe 21. The cooling water in the heat exchange copper pipe 21 exchanges heat with the grease in the inner cavity of storage tank 1, thereby cooling the grease in storage tank 1 and ensuring that the grease is at a suitable working temperature. In addition, the cooling water in the heat exchange copper pipe 21 after heat exchange flows back to the inner cavity of the water tank 17.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. An automatic lubrication system for a foaming machine mixing head, comprising a storage tank (1), an electrical control box (5), an external power supply (13), and a foaming machine mixing head body (9), characterized in that: A temperature regulating mechanism (12) is provided at the bottom of the storage tank (1). A grease inlet (10) is provided on the mixing head body (9) of the foaming machine, and a grease outlet (11) is provided on the mixing head body (9). A grease circulation pump (2) is fixedly installed in the inner cavity of the storage tank (1). A circulation grease inlet pipe (6) is fixedly connected to the grease circulation pump (2). The end of the circulation grease inlet pipe (6) extends to the outside of the storage tank (1) and is connected to the grease inlet (11). 0) Connected to the grease outlet (11), a circulation grease return pipe (7) is fixedly connected to the grease outlet (11), the end of the circulation grease return pipe (7) is fixedly sleeved to the inner cavity of the storage tank (1), a filter mechanism (8) is provided in the middle of the circulation grease return pipe (7), an air system pipe (3) is fixedly connected to the grease circulation pump (2), a control solenoid valve (4) is provided in the middle of the air system pipe (3), and a temperature sensor (25) is fixedly installed in the inner cavity of the storage tank (1).

2. The automatic lubrication system for the mixing head of a foaming machine according to claim 1, characterized in that: The filtration mechanism (8) includes a filter box (14) fixedly sleeved in the middle section of the circulating grease return pipe (7), a sealing door (16) is hinged to the outside of the filter box (14), and a filter screen (15) is fixedly sleeved in the inner cavity of the filter box (14).

3. The automatic lubrication system for the mixing head of a foaming machine according to claim 2, characterized in that: The temperature control mechanism (12) includes a water tank (17) fixedly connected to the bottom of the storage tank (1). A water pump (18) is fixedly installed on the top surface of the water tank (17). The input end of the water pump (18) extends into the inner cavity of the water tank (17) and is fixedly connected to a suction pipe (19). The output end of the water pump (18) is fixedly connected to a distribution pipe (20). Multiple heat exchange copper pipes (21) are fixedly connected to the side of the distribution pipe (20). The ends of the heat exchange copper tubes (21) pass through the inner cavity of the storage tank (1) and are fixedly sleeved to the inner cavity of the water storage tank (17). A heat-conducting fin (22) is fixedly sleeved on the side of the water storage tank (17). One end of the heat-conducting fin (22) extends into the inner cavity of the water storage tank (17). A semiconductor cooling chip (23) is fixedly installed on the other end of the water storage tank (17). A heat dissipation fin (24) is fixedly connected to the heating surface of the semiconductor cooling chip (23).

4. The automatic lubrication system for the mixing head of a foaming machine according to claim 3, characterized in that: The electrical control box (5) is electrically connected to the control solenoid valve (4), the semiconductor cooling chip (23), the temperature sensor (25), and the water pump (18).

5. The automatic lubrication system for the mixing head of a foaming machine according to claim 3, characterized in that: The external power supply (13) is electrically connected to the control solenoid valve (4), the electrical control box (5), the semiconductor cooling chip (23), the temperature sensor (25), and the water pump (18).

6. The automatic lubrication system for the mixing head of a foaming machine according to claim 1, characterized in that: The inner cavity of the storage tank (1) is provided with a lubricating medium.

7. The automatic lubrication system for the mixing head of a foaming machine according to claim 3, characterized in that: The inner cavity of the water storage tank (17) is provided with cooling water.

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