A tank structure for an injection molding machine and the injection molding machine

Abstract

This utility model discloses an oil tank structure and an injection molding machine for use in an injection molding machine. The structure includes a main oil tank, a distribution oil tank, a return pipe partition, and a cooling assembly. The main oil tank has multiple return pipes on its side for supplying oil. The distribution oil tank and the return pipe partition are located inside the main oil tank. The return pipe partition is positioned above the distribution oil tank, and a drain port is provided at the location corresponding to the distribution oil tank. The return pipe partition is adapted to discharge the oil flowing back from the multiple return pipes into the distribution oil tank through the drain port. The inlet of the cooling assembly is connected to the distribution oil tank, and the outlet of the cooling assembly is connected to the main oil tank. This oil tank structure and injection molding machine for use in an injection molding machine can completely guide the oil in the hydraulic system of the injection molding machine into the distribution oil tank for cooling, and facilitates the subsequent addition of return pipes.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, specifically to an oil tank structure for an injection molding machine and an injection molding machine. Background Technology

[0002] Currently, injection molding machines, also known as injection molding machines or injection molding machines, are the main molding equipment used to produce various shapes of plastic products from thermoplastic or thermosetting plastics using plastic molds. They are classified as vertical, horizontal, and all-electric. Injection molding machines heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.

[0003] In injection molding machines, hydraulic oil serves as the working medium for the hydraulic system, driving the entire machine's operation. After circulating through the machine and returning to the oil tank via the return pipe, the hydraulic oil needs to be cooled by a cooler. To facilitate centralized cooling, a distribution tank connected to the cooler is usually installed inside the main oil tank. The oil is cooled by the cooler before being pumped back into the main oil tank. However, injection molding machines have numerous hydraulic lines, and to reduce air bubbles in the oil, the return pipe needs to be quite long. This results in some... When hydraulic fluid in a distant hydraulic line flows back to the main oil tank via the return pipe, it flows directly back into the main oil tank instead of flowing into the distribution tank. This causes the overall oil temperature in the main oil tank to rise. In addition, it increases the amount of impurities such as iron filings in the main oil tank, thereby increasing the frequency of replacing the filter element of the oil pump motor. Furthermore, the long return pipe increases the equipment cost, and this type of oil pipe cannot be directly welded on the outside. It must first be welded and positioned inside the oil tank, or welded directly inside the oil tank. After the oil tank is processed, it is very difficult to add return oil pipes later. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, one of the objectives of this utility model is to invent an oil tank structure for injection molding machines that can completely guide the oil in the hydraulic system of an injection molding machine into the oil distribution tank for cooling, and facilitates the subsequent addition of a return pipe.

[0005] One of the objectives of this utility model is achieved through the following technical solution:

[0006] An oil tank structure for an injection molding machine includes a main oil tank, a distribution oil tank, a return pipe partition groove, and a cooling assembly. The main oil tank has multiple return pipes on its side for supplying oil. The distribution oil tank and the return pipe partition groove are located inside the main oil tank. The return pipe partition groove is positioned above the distribution oil tank, and a drain port is provided in the return pipe partition groove corresponding to the position of the distribution oil tank. The return pipe partition groove is adapted to discharge the oil flowing back from the multiple return pipes into the distribution oil tank through the drain port. The inlet of the cooling assembly is connected to the distribution oil tank, and the outlet of the cooling assembly is connected to the main oil tank.

[0007] Furthermore, an oil drain pipe extends from the edge of the oil drain port toward the oil distribution tank, and the end of the oil drain pipe extends into the oil distribution tank.

[0008] Furthermore, it also includes an iron removal assembly, which includes a grid and a magnet. The grid has a cavity, the magnet is disposed in the cavity, and a portion of the grid is placed inside the oil drain pipe.

[0009] Furthermore, the side of the oil drain pipe has an opening for the grid to extend into, the main oil tank has an inspection port corresponding to the position of the iron removal component, the part of the grid placed outside the oil drain pipe extends out of the inspection port and is fitted with a fixing plate, and a handle is installed on the side of the fixing plate facing away from the grid.

[0010] Furthermore, a sealing ring is installed on the side of the fixing plate facing the grid, and the sealing ring is adapted to seal the gap between the fixing plate and the inspection port.

[0011] Furthermore, it also includes an oil suction filter, the oil inlet of which is connected to the oil distribution tank, and the oil outlet of which is connected to the main oil tank or the oil distribution tank.

[0012] Furthermore, the cooling assembly includes a cooling motor and a cooler. The oil inlet of the cooling motor is connected to the oil distribution tank, and the oil outlet is connected to the oil inlet of the cooler. The oil outlet of the cooler is connected to the main oil tank.

[0013] The second objective of this utility model is achieved through the following technical solution:

[0014] An injection molding machine, characterized in that it includes an injection molding machine body and the aforementioned oil tank structure for the injection molding machine.

[0015] Beneficial effects:

[0016] This invention incorporates a return pipe partition groove within the main oil tank. This allows oil flowing from multiple return pipes to be directed into the distribution tank, cooled by the cooling assembly, and then returned to the main oil tank. This prevents uncooled oil from directly entering the main oil tank, which could lead to excessively high oil levels and affect performance. Furthermore, the partition groove replaces the original return pipes in the main oil tank, allowing users to easily connect additional return pipes by simply connecting the outlet to the partition groove, eliminating the need to weld corresponding return pipes into the main oil tank. Additionally, the partition groove provides support within the main oil tank, enhancing its overall strength. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the oil tank structure for an injection molding machine according to the present invention;

[0018] Figure 2 This is an internal structural diagram of an oil tank structure for an injection molding machine according to the present invention;

[0019] Figure 3 This utility model Figure 2 A structural diagram from another angle;

[0020] Figure 4 This utility model Figure 3 A sectional view;

[0021] Figure 5 This is a schematic diagram of the iron removal assembly for an oil tank in an injection molding machine according to the present invention; reference numerals:

[0022] 10. Main oil tank; 20. Oil distribution tank; 30. Return pipe partition groove; 301. Oil drain pipe; 40. Iron removal assembly; 401. Grid mesh; 402. Magnet; 403. Fixing plate; 404. Handle; 405. Sealing ring; 50. Oil suction filter. Detailed Implementation

[0023] The present invention will be further described below with reference to 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.

[0024] In the description of this utility model, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 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.

[0025] 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 utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 utility model according to the specific circumstances.

[0027] like Figure 1-5 As shown, an oil tank structure for an injection molding machine includes a main oil tank 10, a distribution oil tank 20, a return pipe partition 30, and a cooling assembly. The main oil tank 10 has multiple return pipes on its side for supplying oil. The distribution oil tank 20 and the return pipe partition 30 are disposed inside the main oil tank 10. The return pipe partition 30 is disposed above the distribution oil tank 20, and the return pipe partition 30 has an oil drain port corresponding to the position of the distribution oil tank 20. The return pipe partition 30 is adapted to discharge the oil returning from the multiple return pipes into the distribution oil tank 20 through the oil drain port. The inlet of the cooling assembly is connected to the distribution oil tank 20, and the outlet of the cooling assembly is connected to the main oil tank 10.

[0028] This invention, by setting a return pipe partition groove 30 inside the main oil tank 10, allows oil flowing back from multiple return pipes to be guided into the distribution tank 20, cooled by the cooling component, and then flowed back into the main oil tank 10. This prevents uncooled oil from directly entering the main oil tank 10, which could lead to excessively high oil levels and affect the oil's performance. Simultaneously, the return pipe partition groove 30 replaces the original return pipes in the main oil tank 10, allowing users to easily connect the outlet of any new return pipe to the partition groove 30 to guide oil into the distribution tank 20 without welding a corresponding return pipe into the main oil tank 10. This facilitates the addition of hydraulic oil return lines. Furthermore, the return pipe partition groove 30 provides support within the main oil tank 10, thereby increasing its strength.

[0029] To prevent air bubbles from forming when oil falls from the drain port into the oil separator 20, in this embodiment, an oil drain pipe 301 extends from the edge of the drain port toward the oil separator 20. The end of the oil drain pipe 301 extends into the oil separator 20 so that the oil can be guided into the oil separator 20, thereby preventing air from mixing with the oil when it falls into the oil separator 20 from a height, which would cause air bubbles to form.

[0030] In addition, to reduce impurities such as iron filings in the returned oil, an iron removal component 40 is also provided in this embodiment. The iron removal component 40 includes a grid 401 and a magnet 402. The grid 401 has a cavity, and the magnet 402 is disposed in the cavity. A portion of the grid 401 is placed inside the oil drain pipe 301 so that when the oil passes through the oil drain pipe 301, the magnetism of the magnet adsorbs ferromagnetic impurities such as iron filings in the oil, thereby preventing impurities from clogging the inlet of the cooling component.

[0031] Meanwhile, to facilitate the removal of the iron removal component 40 for cleaning by the staff, in this embodiment, the side of the oil drain pipe 301 is provided with an opening for the grid 401 to extend into, and the main oil tank 10 is provided with an inspection port corresponding to the position of the iron removal component 40. The grid 401 is placed outside the oil drain pipe 301, extending out of the inspection port and is fitted with a fixing plate 403. A handle 404 is installed on the side of the fixing plate 403 facing away from the grid 401. In use, the grid 401 can be pulled out of the oil drain pipe 301 through the handle 404 to remove the iron filings adsorbed on the surface of the grid 401.

[0032] In order to prevent oil from flowing out from the gap between the fixing plate 403 and the inspection port, in this embodiment, a sealing ring 405 is installed on the side of the fixing plate 403 facing the grid 401. The sealing ring 405 is adapted to block the gap between the fixing plate 403 and the inspection port.

[0033] In order to further remove impurities in the oil, this embodiment also includes an oil suction filter 50. The oil inlet of the oil suction filter 50 is connected to the oil distribution tank 20, and the oil outlet is connected to the main oil tank 10 or the oil distribution tank 20. This allows the oil suction filter 50 to filter the oil in the oil distribution tank 20, thereby further removing impurities in the oil and reducing the probability of impurities blocking the inlet of the cooling component.

[0034] Specifically, the cooling assembly includes a cooling motor and a cooler. The oil inlet of the cooling motor is connected to the oil distribution tank 20, and the oil outlet is connected to the oil inlet of the cooler. The oil outlet of the cooler is connected to the main oil tank 10. During operation, the cooling motor pumps the oil from the oil distribution tank 20 into the cooler, and then the oil flows back to the main oil tank 10 through the cooler for convenient subsequent use.

[0035] This utility model also discloses an injection molding machine body and the above-mentioned oil tank structure for an injection molding machine.

[0036] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A tank structure for an injection molding machine, characterized in that: The system includes a main oil tank, a distribution oil tank, a return pipe partition, and a cooling assembly. The main oil tank has multiple return pipes on its side for supplying oil. The distribution oil tank and the return pipe partition are located inside the main oil tank. The return pipe partition is located above the distribution oil tank and has an oil drain port corresponding to the position of the distribution oil tank. The return pipe partition is adapted to discharge the oil flowing back from the multiple return pipes into the distribution oil tank through the oil drain port. The inlet of the cooling assembly is connected to the distribution oil tank, and the outlet of the cooling assembly is connected to the main oil tank.

2. The oil tank structure for an injection molding machine according to claim 1, characterized in that: An oil drain pipe extends from the edge of the oil drain port toward the oil distribution tank, and the end of the oil drain pipe extends into the oil distribution tank.

3. The oil tank structure for an injection molding machine according to claim 2, characterized in that: It also includes an iron removal component, which includes a grid and a magnet. The grid has a cavity, the magnet is disposed in the cavity, and a portion of the grid is placed inside the oil drain pipe.

4. The oil tank structure for an injection molding machine according to claim 3, characterized in that: The oil drain pipe has an opening on its side for the grid to extend into. The main oil tank has an inspection port corresponding to the position of the iron removal component. The part of the grid placed outside the oil drain pipe extends out of the inspection port and is fitted with a fixing plate. A handle is installed on the side of the fixing plate facing away from the grid.

5. The oil tank structure for an injection molding machine according to claim 4, characterized in that: A sealing ring is installed on the side of the fixing plate facing the grid, and the sealing ring is adapted to seal the gap between the fixing plate and the inspection port.

6. The oil tank structure for an injection molding machine according to claim 1, characterized in that: It also includes an oil suction filter, the oil inlet of which is connected to the oil distribution tank, and the oil outlet of which is connected to the main oil tank or the oil distribution tank.

7. The oil tank structure for an injection molding machine according to claim 1, characterized in that: The cooling assembly includes a cooling motor and a cooler. The oil inlet of the cooling motor is connected to the oil distribution tank, and the oil outlet is connected to the oil inlet of the cooler. The oil outlet of the cooler is connected to the main oil tank.

8. An injection molding machine, characterized in that: Includes the injection molding machine body and the oil tank structure for the injection molding machine as described in any one of claims 1-7.

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