Ultra-large injection molding machine with double-motor oil cooling structure

Abstract

The invention discloses an ultra-large injection molding machine with a dual-motor oil cooling structure. The ultra-large injection molding machine comprises an injection molding machine main body and a liquid cooling assembly, the injection molding machine main body comprises a motor body and a hydraulic system; a heat dissipation shell is arranged on the outer side of the motor body; the liquid cooling assembly comprises a shell, an input pipe, a flow guide pipe, a first rotary spacer ring and a second rotary spacer ring, an annular cavity is formed between the shell and the heat dissipation shell; the annular cavity is sequentially divided into an inflow cavity, a cooling cavity and an outflow cavity by the first rotary spacer ring and the second rotary spacer ring; an oil outlet pipeline of the hydraulic system, the inflow cavity, the input pipe and the flow guide pipe are sequentially communicated; the cooling cavity, the outflow cavity and an oil return pipeline of the hydraulic system are sequentially communicated; and a slender flow guide groove is formed in the flow guide pipe. The hydraulic system of the injection molding machine drives the hydraulic oil liquid to flow through the annular cavity at a proper flow speed, and the hydraulic oil liquid flowing in the annular cavity continuously cools the heat dissipation shell, so that the motor body is continuously cooled.

Description

Technical Field

[0001] This invention relates to ultra-large injection molding machines, and more particularly to an ultra-large injection molding machine with a dual-motor oil-cooled structure. Background Technology

[0002] In ultra-large injection molding machines, ultra-large motors are typically used as the driving components for the injection screw. These ultra-large motors need to meet the requirements of high torque, high speed, and high power. Such motors are mostly air-cooled or water-cooled. The disadvantages of air cooling are high noise and large size; while the disadvantages of water cooling are that the motor is prone to scale buildup due to water quality, which leads to reduced cooling capacity and even blockage. In order to meet the torque requirements, dual motors can be driven in parallel, but this makes the installation space for the motor cooling device even more cramped. Some existing ultra-large injection molding machines also have additional liquid cooling structures on the motor to dissipate heat, but this requires the design of a separate coolant, has a complex structure, and is not energy-efficient or environmentally friendly.

[0003] There are also a few solutions in ultra-large injection molding machines that use hydraulic oil from the hydraulic system to cool the ultra-large motor. However, the hydraulic oil is very easy to adhere to the heat dissipation structure. As a result, under continuous operation, the hydraulic oil cannot efficiently dissipate heat from the motor. Moreover, the hydraulic oil that adheres is prone to overheating, which can lead to the deterioration of the hydraulic oil and even affect the hydraulic system of the injection molding machine. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, the present invention aims to propose an ultra-large injection molding machine with a dual-motor hydraulic cooling structure, which solves the problems of high noise, easy scale buildup, large installation space occupation, and inability to effectively utilize hydraulic oil to continuously and effectively dissipate heat from the motor in existing ultra-large injection molding machine cooling structures.

[0005] A super-large injection molding machine with a dual-motor hydraulic cooling structure includes: an injection molding machine body and a liquid cooling assembly; the injection molding machine body includes a motor body and a hydraulic system; a heat dissipation shell is provided on the outside of the motor body; the liquid cooling assembly includes: an outer shell, an input pipe, a guide pipe, a first rotating partition ring, and a second rotating partition ring; the outer shell surrounds the outside of the heat dissipation shell, and an annular cavity is formed between the outer shell and the heat dissipation shell; both the first rotating partition ring and the second rotating partition ring are rotatably disposed within the annular cavity around the motor body; the first rotating partition ring and the second rotating partition ring together sequentially divide the annular cavity into... The system comprises an inflow chamber, a cooling chamber, and an outflow chamber; the hydraulic system's oil outlet line, inflow chamber, input pipe, and guide pipe are sequentially connected; a slender guide groove is formed on the guide pipe, which connects to the cooling chamber; a heat sink is located on one side of the slender guide groove, and a gap is provided between the heat sink and the slender guide groove to allow hydraulic oil to flow out, so that the hydraulic oil contacts the heat sink after being discharged through the slender guide groove; the cooling chamber, outflow chamber, and hydraulic system's return line are sequentially connected; the heat sink is located inside the cooling chamber; and the guide pipe is rotatably mounted on the outside of the heat sink.

[0006] Preferably, the liquid cooling assembly further includes a discharge valve; the second rotating ring is provided with a discharge valve, which is a one-way valve, the inlet end of the discharge valve is connected to the cooling chamber, the outlet end of the discharge valve is connected to the outflow chamber, and the cooling chamber, the discharge valve, the outflow chamber and the return oil pipeline of the hydraulic system are connected in sequence.

[0007] Preferably, one end of the input tube is fixedly connected to the first rotating ring, and the other end of the input tube is fixedly connected to the second rotating ring, with the end of the input tube fixedly connected to the second rotating ring being a closed end.

[0008] Preferably, the above-mentioned ultra-large injection molding machine with dual-motor oil-cooled structure further includes a rotating assembly; the rotating assembly includes: a driven gear, a connecting rod, a transmission gear, and a servo motor; the driven gear and the transmission gear mesh and are connected in transmission; the output shaft of the servo motor is fixedly connected to the transmission gear; at least one end of a connecting rod is fixedly connected to the driven gear, and the other end of at least one connecting rod is fixedly connected to a second rotating ring.

[0009] Preferably, the above-mentioned ultra-large injection molding machine with dual-motor oil-cooled structure includes two motor bodies and two liquid cooling components; the motor bodies and liquid cooling components correspond one-to-one; the rotating component also includes a closed shell; one side of the two shells is fixedly connected to a closed shell; each of the two second rotating rings is fixedly connected to a driven gear through a connecting rod, and the two driven gears simultaneously mesh with the transmission gear and are connected in transmission; both the driven gear and the transmission gear are located inside the closed shell.

[0010] Preferably, the liquid cooling assembly further includes an auxiliary inlet valve; the auxiliary inlet valve is provided on the first rotary ring, and the auxiliary inlet valve is a differential pressure valve; the oil inlet of the auxiliary inlet valve is connected to the inflow chamber, and the oil outlet of the auxiliary inlet valve is connected to the cooling chamber.

[0011] Preferably, a plurality of guide tubes are provided; during the rotation of the plurality of guide tubes, the rotational travel trajectory of the slender guide groove can cover the outer side of the heat sink shell.

[0012] Preferably, a plurality of discharge valves are provided; the number of discharge valves is the same as the number of guide pipes; the discharge valves and guide pipes are evenly spaced around the heat dissipation shell in the circumferential direction.

[0013] Preferably, the rotating assembly further includes a partition ring, and the partition ring is rotatably provided on the side of the two outer shells near the closed shell. The partition ring is used to separate the internal cavity of the closed shell from the outflow cavity inside the outer shell.

[0014] Beneficial effects: (1) The hydraulic system of this injection molding machine drives the hydraulic oil to flow through the annular cavity at an appropriate flow rate. The hydraulic oil flowing in the annular cavity continuously cools the heat sink, thereby continuously cooling the motor body. Cooling the motor body with hydraulic oil is more efficient and stable because no scale will be generated in the oil. Furthermore, no additional coolant needs to be designed, making it more energy-saving and environmentally friendly. Combined with the original cooling system of the hydraulic system, it has high energy efficiency and stable temperature control. The motor does not need to be cooled by air, resulting in less noise. The structure is more compact, which can effectively solve the size and space problem of the heat dissipation mechanism of the motor body.

[0015] (2) The hydraulic oil in the guide pipe flows out at a faster speed through the slender guide groove. The cross-sectional area of ​​the slender guide groove in the direction of hydraulic oil flow is smaller than that of the oil outlet pipe of the hydraulic system. The hydraulic oil flowing out washes the hydraulic oil adhering to the surface of the heat sink at a faster speed. By rotating the guide pipe, the position of the hydraulic oil washing the surface of the heat sink is changed, so as to wash the surface of the heat sink more completely, thereby promoting the removal of the hydraulic oil adhering to the surface of the heat sink. This avoids a small amount of hydraulic oil adhering to the surface of the heat sink for a long time, and avoids the hydraulic oil being heated by the heat sink for a long time. This prevents the hydraulic oil from deteriorating due to excessively high temperature, so that the subsequent hydraulic oil can effectively play its original role in the hydraulic system.

[0016] (3) During the rotation of the guide pipe, the guide pipe drives the input pipe and the first rotating ring to rotate, which can keep the hydraulic oil flowing continuously. Compared with connecting the oil outlet and input pipe of the hydraulic system through a hose, it can avoid the hose interfering with the rotation of the input pipe, thus making the rotation adjustment of the guide pipe more flexible and convenient.

[0017] (4) The hydraulic oil in the cooling chamber is discharged to the outflow chamber through the discharge valve. The position of the hydraulic oil discharge can be changed by rotating the discharge valve, so that the hydraulic oil in the cooling chamber is discharged more evenly. This reduces the local hydraulic oil from accumulating in the cooling chamber for a long time, and makes the hydraulic oil in the cooling chamber flow evenly and efficiently, thereby improving the heat dissipation efficiency and uniformity of the motor body.

[0018] (5) When the hydraulic oil flowing into the cavity cannot be discharged in time through the input pipe and the guide pipe, when the pressure in the cavity increases to a certain value, the auxiliary inlet valve opens under the pressure difference between the cavity and the cooling cavity. Part of the hydraulic oil flowing into the cavity enters the cooling cavity through the auxiliary inlet valve. In this way, while using the hydraulic oil to flush the surface of the heat sink, the hydraulic oil can flow into the cooling cavity efficiently, thereby maintaining efficient heat dissipation. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the injection molding machine body and liquid cooling assembly of the present invention.

[0020] Figure 2 This is a first three-dimensional structural diagram of the motor body, liquid cooling assembly, and rotating assembly of the present invention.

[0021] Figure 3 This is a schematic diagram of a second three-dimensional structure of the motor body, liquid cooling assembly, and rotating assembly of the present invention.

[0022] Figure 4 This is a partial cross-sectional perspective view of the motor body, liquid cooling assembly, and rotating assembly of the present invention.

[0023] Figure 5 This is a partial cross-sectional view of the motor body, liquid cooling assembly, and rotating assembly of the present invention.

[0024] Figure 6 This is a partial cross-sectional perspective view of the motor body, liquid cooling assembly, and servo motor of the present invention.

[0025] Figure 7 This is a partial cross-sectional perspective view of the liquid cooling assembly and rotating assembly of the present invention.

[0026] Figure 8 This is a partial three-dimensional structural diagram of the liquid cooling component and the rotating component of the present invention.

[0027] Figure 9 This is a three-dimensional structural diagram of the input tube and the guide tube of the present invention.

[0028] Specific reference numerals in the attached drawings: 10. Injection molding machine body; 11. Motor body; 111. Heat sink; 12. Hydraulic system; 20. Liquid cooling assembly; 21. Outer shell; 211. Injection port; 212. Outlet port; 22. Annular cavity; 221. Inflow chamber; 222. Cooling chamber; 223. Outflow chamber; 23. Input pipe; 24. Guide pipe; 241. Slender guide groove; 25. First rotating ring; 26. Second rotating ring; 27. Discharge valve; 28. Auxiliary inlet valve; 30. Rotating assembly; 31. Driven gear; 32. Connecting rod; 33. Transmission gear; 34. Servo motor; 35. Enclosed shell; 36. Separator ring. Detailed Implementation

[0029] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0030] In the description of this invention, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 invention.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] like Figures 1-9As shown, an ultra-large injection molding machine with a dual-motor hydraulic cooling structure includes: an injection molding machine body 10 and a hydraulic cooling assembly 20; the injection molding machine body 10 includes a motor body 11 and a hydraulic system 12; a heat dissipation shell 111 is provided on the outside of the motor body 11, and the windings and iron core of the motor body 11 are provided on the inside of the heat dissipation shell 111. It should be noted that the windings and iron core of the motor body 11 are the main heat-generating components during use; the hydraulic cooling assembly 20 includes: a shell 21, an input pipe 23, a guide pipe 24, a first rotating partition ring 25, and a second rotating partition ring 26; the shell 21 surrounds the outside of the heat dissipation shell 111, and an annular cavity 22 is formed between the shell 21 and the heat dissipation shell 111; the first rotating partition ring 25 and the second rotating partition ring 26 together divide the annular cavity 22 into an inflow cavity 221, a cooling cavity 222, and an outflow cavity 223 in sequence; the shell 21 is provided with an injection port 211 and an outlet port 212; the hydraulic cooling assembly 20 includes: a heat dissipation shell 21, an input pipe 23, a guide pipe 24, a first rotating partition ring 25, and a second rotating partition ring 26 ... surrounds the heat dissipation shell 111, and an input pipe 23, a guide pipe 24, a first rotating partition ring 25, and a second rotating partition ring 26; the The oil outlet pipe, injection port 211, inflow chamber 221, input pipe 23, and guide pipe 24 of the hydraulic system 12 are connected in sequence. A slender guide groove 241 is opened on the guide pipe 24, and the guide pipe 24 is connected to the cooling chamber 222 through the slender guide groove 241. At least one guide pipe 24 is connected to the input pipe 23, and the guide pipe 24 is connected to the annular cavity 22 through the slender guide groove 241. The heat sink 111 is located on one side of the slender guide groove 241. There is a gap between the heat sink 111 and the slender guide groove 241 to allow hydraulic oil to flow out, so that the hydraulic oil comes into contact with the heat sink 111 after being discharged through the slender guide groove 241. The cooling chamber 222, the outflow chamber 223, and the return oil pipe of the hydraulic system 12 are connected in sequence. The heat sink 111 is located inside the cooling chamber 222. The guide pipe 24 is rotatably arranged on the outside of the heat sink 111. Multiple input pipes 23 can be arranged on the outside of the heat sink 111.

[0034] Specifically, a portion of the hydraulic oil in the hydraulic system 12 of this injection molding machine is introduced into the injection port 211 through the oil outlet pipe of the hydraulic system 12. The injection port 211 is located at the lower left of the annular cavity 22. The discharge port 212 is connected to the return oil pipe of the hydraulic system 12. Specifically, the hydraulic oil discharged from the discharge port 212 flows back to the hydraulic system 12 of this injection molding machine through the return oil pipe. The discharge port 212 is located at the upper right of the annular cavity 22.

[0035] It should be noted that the main function of the first transom ring 25 is to separate the inflow chamber 221 and the cooling chamber 222, so that most of the hydraulic oil in the inflow chamber 221 needs to flow into the cooling chamber 222 through the input pipe 23 and the guide pipe 24. The inner side of the first transom ring 25 does not need to be connected to the heat sink 111 by a seal, and the outer side of the first transom ring 25 does not need to be connected to the outer shell 21 by a seal. A small amount of hydraulic oil can be allowed to pass through the inner or outer side of the first transom ring 25. The main function of the second transom ring 26 is to separate the cooling chamber 222 and the outflow chamber 223. Similar to the first transom ring 25, a small amount of hydraulic oil can be allowed to pass through the inner or outer side of the second transom ring 26. The purpose is to reduce the use of seals and have a relatively small impact on the cooling function.

[0036] During use, the hydraulic system 12 of this injection molding machine drives the hydraulic oil to flow through the annular cavity 22 at an appropriate flow rate, so that the flow rate of the hydraulic oil can effectively cool the motor body 11. The hydraulic oil flows sequentially through the oil outlet pipe, injection port 211, inflow cavity 221, input pipe 23 and guide pipe 24 of the hydraulic system 12. The hydraulic oil in the guide pipe 24 then flows into the cooling cavity 222 at a relatively fast speed through the slender guide groove 241. The hydraulic oil then flows from the cooling cavity 222 into the outflow cavity 223. The newly flowing hydraulic oil pushes the original hydraulic oil in the outflow cavity 223 upward and is discharged through the discharge port 212. The hydraulic oil discharged from the discharge port 212 flows back into the hydraulic system 12 through the return oil pipe of the hydraulic system 12. The flowing hydraulic oil in the annular cavity 22 continuously cools the heat sink 111, thereby continuously cooling the motor body 11. The motor body 11 is cooled by hydraulic oil. Since no scale is produced in the oil, the cooling effect is more efficient and stable. Furthermore, no additional coolant is required, making it more energy-saving and environmentally friendly. Combined with the original cooling system of the hydraulic system 12, it has high energy efficiency and stable temperature control. The motor does not need to be cooled by air, resulting in less noise. The structure is more compact, which can effectively solve the size and space problem of the heat dissipation mechanism of the motor body 11.

[0037] The hydraulic oil in the guide pipe 24 flows out at a relatively fast speed through the slender guide groove 241. The cross-sectional area of ​​the slender guide groove 241 in the direction of hydraulic oil flow is smaller than the cross-sectional area of ​​the oil outlet pipe of the hydraulic system 12. The outflowing hydraulic oil washes the hydraulic oil adhering to the surface of the heat sink 111 at a relatively fast speed. By rotating the guide pipe 24, the position of the hydraulic oil washing the surface of the heat sink 111 is changed, so as to wash the surface of the heat sink 111 more completely. This promotes the removal of the hydraulic oil adhering to the surface of the heat sink 111, so as to avoid a small amount of hydraulic oil adhering to the surface of the heat sink 111 for a long time, and to avoid the hydraulic oil being heated by the heat sink 111 for a long time. This prevents the hydraulic oil from deteriorating due to excessively high temperature, so that the subsequent hydraulic oil can effectively play its original role in the hydraulic system 12.

[0038] After the hydraulic oil flows through the outlet pipe and the inlet 211 of the hydraulic system 12, it enters the inflow chamber 221. The hydraulic oil in the inflow chamber 221 then flows through the input pipe 23 and the guide pipe 24 in sequence. During the rotation of the guide pipe 24, the guide pipe 24 drives the input pipe 23 and the first rotating ring 25 to rotate, which can keep the hydraulic oil flowing continuously. Compared with connecting the inlet 211 and the input pipe 23 through a hose, it can avoid the hose interfering with the rotation of the input pipe 23, thus making it more flexible and convenient to rotate and adjust the guide pipe 24.

[0039] More preferably, such as Figures 4-8 As shown, the liquid cooling assembly 20 also includes a discharge valve 27; the second rotating ring 26 is provided with a discharge valve 27, which is a one-way valve. The inlet end of the discharge valve 27 is connected to the cooling chamber 222, and the outlet end of the discharge valve 27 is connected to the outflow chamber 223. The cooling chamber 222, the discharge valve 27, the outflow chamber 223, the discharge port 212 and the return oil pipeline of the hydraulic system 12 are connected in sequence.

[0040] The hydraulic oil in the cooling chamber 222 is discharged to the outflow chamber 223 through the discharge valve 27. Since the discharge valve 27 is located on the second rotating ring 26 and the second rotating ring 26 can rotate around the motor body 11, the position of the hydraulic oil discharge can be changed by rotating the discharge valve 27, so that the hydraulic oil in the cooling chamber 222 is discharged more evenly. This reduces the accumulation of local hydraulic oil in the cooling chamber 222 for a long time, and makes the hydraulic oil in the cooling chamber 222 flow evenly and efficiently, thereby improving the heat dissipation efficiency and uniformity of the motor body 11.

[0041] More preferably, such as Figures 4-8 As shown, one end of the input tube 23 is fixedly connected to the first rotating ring 25, and the other end of the input tube 23 is fixedly connected to the second rotating ring 26. The end of the input tube 23 that is fixedly connected to the second rotating ring 26 is a closed end.

[0042] The input pipe 23 serves as a hydraulic oil pipeline, a transmission component between the first rotating ring 25 and the second rotating ring 26, and a support component for the guide pipe 24, so that the guide pipe 24 and the discharge valve 27 can rotate synchronously, making it easier to drive the guide pipe 24 and the discharge valve 27 to rotate.

[0043] More preferably, such as Figures 3-8 As shown, the aforementioned ultra-large injection molding machine with a dual-motor oil-cooled structure also includes a rotating assembly 30; the rotating assembly 30 includes: a driven gear 31, a connecting rod 32, a transmission gear 33, and a servo motor 34; the driven gear 31 and the transmission gear 33 mesh and are connected in transmission; the output shaft of the servo motor 34 is fixedly connected to the transmission gear 33; the servo motor 34 is fixedly mounted on one side of the transmission gear 33, and the centerline of the transmission gear 33 coincides with the output shaft of the servo motor 34; at least one end of the connecting rod 32 is fixedly connected to the driven gear 31, and the other end of the at least one connecting rod 32 is fixedly connected to the second rotating ring 26.

[0044] The output shaft of the servo motor 34 rotates, which drives the transmission gear 33 to rotate. The transmission gear 33 drives the driven gear 31 to rotate. The driven gear 31 drives the second rotating ring 26 to rotate via the connecting rod 32. The second rotating ring 26 drives the input pipe 23 and the first rotating ring 25 to rotate. With a relatively simple structure, the guide pipe 24 and the discharge valve 27 can be driven to rotate more conveniently. The rotation speed of the guide pipe 24 and the discharge valve 27 can be changed by controlling the rotation speed of the output shaft of the servo motor 34.

[0045] More preferably, such as Figures 3-8 As shown, the aforementioned ultra-large injection molding machine with a dual-motor oil-cooled structure includes two motor bodies 11 and two liquid-cooling components 20; the motor bodies 11 and liquid-cooling components 20 correspond one-to-one; the rotating component 30 also includes a closed shell 35; the closed shell 35 is fixedly connected to one side of the two outer shells 21; each of the two second rotating rings 26 is fixedly connected to a driven gear 31 through a connecting rod 32, and the two driven gears 31 simultaneously mesh with the transmission gear 33 and are connected for transmission; the driven gear 31 and the transmission gear 33 are both located inside the closed shell 35, and the servo motor 34 is fixedly connected to one side of the closed shell 35, and the output shaft of the servo motor 34 passes through the closed shell 35 and is fixedly connected to the transmission gear 33.

[0046] Except for the servo motor 34, all other components are located inside the housing 21 or the enclosed housing 35. The housing 21 and the enclosed housing 35 are both fixedly connected to the motor body 11, so that the housing 21 and the enclosed housing 35 can protect the internal components. The housing 21 and the enclosed housing 35 are fixedly set, which facilitates the sealing of their connection edges and can effectively prevent the internal hydraulic oil from overflowing. Only the output shaft of the servo motor 34 needs to be connected to the enclosed housing 35 by a sealed bearing. The structure is more convenient and quick to assemble, and more economical and practical.

[0047] More preferably, such as Figures 4-8 As shown, the liquid cooling assembly 20 also includes an auxiliary inlet valve 28; the first rotary ring 25 is provided with the auxiliary inlet valve 28, which is a differential pressure valve; the oil inlet of the auxiliary inlet valve 28 is connected to the inflow chamber 221, and the oil outlet of the auxiliary inlet valve 28 is connected to the cooling chamber 222.

[0048] When the flow rate of hydraulic oil injected by the hydraulic system 12 through the oil outlet line is too fast, the hydraulic oil in the inflow chamber 221 cannot be discharged in time through the input pipe 23 and the guide pipe 24. When the pressure in the inflow chamber 221 increases to a certain value, the auxiliary inlet valve 28 opens under the action of the pressure difference between the inflow chamber 221 and the cooling chamber 222. Part of the hydraulic oil in the inflow chamber 221 is introduced into the cooling chamber 222 through the auxiliary inlet valve 28. In this way, while using the hydraulic oil to flush the surface of the heat sink 111, it is ensured that the hydraulic oil can flow into the cooling chamber 222 efficiently, thereby maintaining efficient heat dissipation.

[0049] More preferably, such as Figures 4-8 As shown, there are several guide tubes 24. During the rotation of the several guide tubes 24, the rotation trajectory of the slender guide groove 241 can cover the outside of the heat sink 111.

[0050] During the rotation of the guide pipe 24, the hydraulic oil flowing out of the slender guide groove 241 can completely flush the outside of the heat sink 111, thereby further improving the heat dissipation effect on the motor body 11.

[0051] More preferably, in order to discharge the high-temperature hydraulic oil in a timely manner and thus dissipate heat more evenly and fully on the motor body 11, a number of discharge valves 27 are provided, and the number of discharge valves 27 is the same as the number of guide pipes 24; the discharge valves 27 and guide pipes 24 are evenly spaced around the heat dissipation shell 111 in the circumferential direction.

[0052] More preferably, such as Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, the rotating assembly 30 also includes a partition ring 36. The partition ring 36 is rotatably provided on the side of both outer shells 21 near the closed shell 35. The partition ring 36 is used to separate the internal cavity of the closed shell 35 and the outflow cavity 223 in the outer shell 21.

[0053] The separation ring 36 prevents the material inside the cavity of the sealed shell 35 from entering the outflow cavity 223. Its main purpose is to block the iron filings generated during the rotation of the driven gear 31 and the transmission gear 33, so as to prevent these small amounts of iron filings from entering the hydraulic system 12 and improve the stability of the injection molding machine body 10 during operation.

[0054] It should also be noted that the inner or outer sides of the three barrier components, namely the first partition ring 25, the second partition ring 26, and the separator ring 36, do not need to be sealed by seals. A small amount of hydraulic oil passing through the gaps between the inner or outer sides of the first partition ring 25, the second partition ring 26, and the separator ring 36 will not affect the cooling function.

[0055] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A super-large injection molding machine with a dual-motor oil-cooled structure, characterized in that, include: Injection molding machine body and liquid cooling components; The main body of the injection molding machine includes a motor body and a hydraulic system; The motor body is provided with a heat dissipation shell on its outer side; the liquid cooling assembly includes: a shell, an input pipe, a guide pipe, a first rotating partition ring, and a second rotating partition ring; the shell surrounds the outside of the heat dissipation shell, and an annular cavity is formed between the shell and the heat dissipation shell; the first rotating partition ring and the second rotating partition ring are both rotatably disposed in the annular cavity around the motor body; the first rotating partition ring and the second rotating partition ring together sequentially divide the annular cavity into an inflow cavity, a cooling cavity, and an outflow cavity; the hydraulic system's oil outlet pipe, the inflow cavity, and the input pipe The flow guide pipe is connected in sequence with the flow guide pipe; the flow guide pipe has a slender flow guide groove, and the flow guide pipe is connected to the cooling chamber through the slender flow guide groove. The heat dissipation shell is located on one side of the slender flow guide groove. There is a gap between the heat dissipation shell and the slender flow guide groove to allow hydraulic oil to flow out, so that the hydraulic oil comes into contact with the heat dissipation shell after being discharged through the slender flow guide groove. The cooling chamber, the outflow chamber, and the return oil pipeline of the hydraulic system are connected in sequence. The heat dissipation shell is located inside the cooling chamber. The flow guide pipe is rotatably disposed on the outside of the heat dissipation shell.

2. The ultra-large injection molding machine with a dual-motor oil-cooled structure according to claim 1, characterized in that, The liquid cooling assembly also includes a discharge valve; the discharge valve is provided on the second rotating ring, the discharge valve is a one-way valve, the inlet end of the discharge valve is connected to the cooling chamber, the outlet end of the discharge valve is connected to the outflow chamber, and the cooling chamber, the discharge valve, the outflow chamber and the return oil pipeline of the hydraulic system are connected in sequence.

3. The ultra-large injection molding machine with a dual-motor oil-cooled structure according to claim 2, characterized in that, One end of the input tube is fixedly connected to the first rotating ring, and the other end of the input tube is fixedly connected to the second rotating ring. The end of the input tube that is fixedly connected to the second rotating ring is a closed end.

4. The ultra-large injection molding machine with a dual-motor oil-cooled structure according to claim 3, characterized in that, The ultra-large injection molding machine with a dual-motor oil-cooled structure also includes a rotating assembly; the rotating assembly includes: a driven gear, a connecting rod, a transmission gear, and a servo motor; the driven gear and the transmission gear mesh and are connected in transmission; the output shaft of the servo motor is fixedly connected to the transmission gear; at least one end of the connecting rod is fixedly connected to the driven gear, and the other end of at least one connecting rod is fixedly connected to the second rotating spacer ring.

5. The ultra-large injection molding machine with a dual-motor oil-cooled structure according to claim 4, characterized in that, The ultra-large injection molding machine with a dual-motor oil-cooled structure includes two motor bodies and two liquid-cooling components; the motor bodies and the liquid-cooling components correspond one-to-one; the rotating component also includes a closed shell; one side of the two shells is fixedly connected to the closed shell; each of the two second rotating rings is fixedly connected to a driven gear through the connecting rod, and the two driven gears simultaneously mesh with the transmission gear and are connected in transmission; both the driven gear and the transmission gear are located inside the closed shell.

6. The ultra-large injection molding machine with a dual-motor oil-cooled structure according to claim 1, characterized in that, The liquid cooling assembly also includes an auxiliary inlet valve; the auxiliary inlet valve is provided on the first rotary ring, and the auxiliary inlet valve is a differential pressure valve; the oil inlet of the auxiliary inlet valve is connected to the inflow chamber, and the oil outlet of the auxiliary inlet valve is connected to the cooling chamber.

7. The ultra-large injection molding machine with a dual-motor oil-cooled structure according to claim 2, characterized in that, The flow guide tubes are provided in a plurality of manners; during the rotation of the plurality of flow guide tubes, the rotational travel trajectory of the slender flow guide groove can cover the outer side of the heat dissipation shell.

8. The ultra-large injection molding machine with a dual-motor oil-cooled structure according to claim 7, characterized in that, The discharge valves are provided in a plurality of manner; the number of discharge valves is the same as the number of guide pipes; the discharge valves and the guide pipes are evenly spaced in the circumferential direction around the heat dissipation shell.

9. The ultra-large injection molding machine with a dual-motor oil-cooled structure according to claim 5, characterized in that, The rotating assembly also includes a partition ring, and the partition ring is rotatably provided on the side of each of the two outer shells near the closed shell. The partition ring is used to separate the internal cavity of the closed shell from the outflow cavity inside the outer shell.

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