Oil cooling and filtering device for injection molding machine

Abstract

The utility model relates to the technical field of injection molding machines, in particular to an oil cooling and filtering device for an injection molding machine, which is arranged on the injection molding machine and comprises a motor pump, a first filter, a heat exchanger and a second filter, the first filter is used for filtering impurities separated out of the oil liquid after the temperature is increased, the second filter is used for filtering impurities separated out of the oil liquid after the temperature is reduced, and through the design of the motor pump, the first filter, the heat exchanger and the second filter, heat separation impurities and cold separation impurities can be filtered out; therefore, the cleanliness of hydraulic oil is improved, the working environment of injection molding machine elements is improved, and the working efficiency and working quality are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to an oil cooling and filtering device for an injection molding machine. Background Art

[0002] The oil in the injection molding machine, mainly hydraulic oil, is used to drive each component of the injection molding machine, especially the operation of the hydraulic cylinder. The temperature of the oil is a key parameter, which will affect the working efficiency and quality of the injection molding machine. Therefore, a cooling device is required in the injection molding machine to cool the oil in the injection molding machine so that the oil can be maintained within a normal temperature range (30°C - 50°C). However, when the hydraulic oil flows through each component, it will carry various impurities. Some of these impurities have the property of thermal precipitation, and some of the other impurities are cold-precipitating. However, the filters in the prior art adopt a single setting, which cannot remove impurities of different properties, and the disassembly and replacement efficiency of the existing filters is low. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is: in order to overcome the problem that when the hydraulic oil flows through each component in the prior art, it will carry various impurities, some of which have the property of thermal precipitation and some of the other impurities are cold-precipitating, and the filters in the prior art adopt a single setting, which cannot remove impurities of different properties, and the disassembly and replacement efficiency of the existing filters is low, an oil cooling and filtering device for an injection molding machine is provided.

[0004] The technical solution adopted by the utility model to solve its technical problem is: an oil cooling and filtering device for an injection molding machine. The oil cooling and filtering device is arranged on the injection molding machine. The oil cooling and filtering device includes a motor pump, a first filter, a heat exchanger and a second filter. The input end of the motor pump is connected to the oil output end of the injection molding machine, the output end of the motor pump is connected to the input end of the first filter, the output end of the first filter is connected to the heat medium inlet of the heat exchanger. The first filter is used to filter the impurities precipitated in the oil after the temperature rises. The heat medium outlet of the heat exchanger is connected to the input end of the second filter, and the output end of the second filter is connected to the oil input end of the injection molding machine. The second filter is used to filter the impurities precipitated in the oil after the temperature drops. Through the design of the motor pump, the first filter, the heat exchanger and the second filter, the thermal precipitation impurities and the cold-precipitation impurities can be filtered respectively, so as to improve the cleanliness of the hydraulic oil, improve the working environment of the injection molding machine components, and ensure its working efficiency and quality.

[0005] Furthermore, the heat exchanger adopts a plate heat exchanger.

[0006] To solve the problem of low efficiency in disassembling and replacing the filter, the oil cooling and filtering device further includes a first mounting assembly, and the first mounting assembly includes a first positioning pipe and a first telescopic connecting pipe.

[0007] The first positioning pipe is a rigid pipe. The input end of the first positioning pipe is connected to the output end of the motor pump, the output end of the first positioning pipe is connected to the input end of the first filter, and the first positioning pipe is fixedly connected to the injection molding machine.

[0008] The input end of the first telescopic connecting pipe is connected to the output end of the first filter, the output end of the first telescopic connecting pipe is connected to the heat medium inlet of the heat exchanger, and the first telescopic connecting pipe can change its own length.

[0009] It further includes that the installation positions of the first positioning pipe and the first telescopic connecting pipe can be interchanged.

[0010] To solve the problem of low efficiency in disassembling and replacing the filter, the oil cooling and filtering device further includes a second mounting assembly, and the second mounting assembly includes a second positioning pipe and a second telescopic connecting pipe.

[0011] The second positioning pipe is a rigid pipe. The input end of the second positioning pipe is connected to the heat medium outlet of the heat exchanger, the output end of the second positioning pipe is connected to the input end of the second filter, and the second positioning pipe is fixedly connected to the injection molding machine.

[0012] The input end of the second telescopic connecting pipe is connected to the output end of the second filter, the output end of the second telescopic connecting pipe is connected to the oil inlet of the injection molding machine, and the second telescopic connecting pipe can change its own length.

[0013] It further includes that the installation positions of the second positioning pipe and the second telescopic connecting pipe can be interchanged.

[0014] To solve the problem of low efficiency in disassembling and replacing the filters arranged on the opposite sides, it further includes that both the first filter and the second filter are located on the left side of the motor pump, and the heat exchanger is located on the right side of the motor pump.

[0015] The beneficial effects of the present utility model are as follows: An oil cooling and filtering device for an injection molding machine provided by the present utility model can filter thermal precipitation impurities and cold precipitation impurities respectively through the designs of the motor pump, the first filter, the heat exchanger, and the second filter, thereby improving the cleanliness of the hydraulic oil, improving the working environment of the injection molding machine components, and ensuring their working efficiency and working quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0017] Figure 1 It is a top view structural schematic diagram of the present utility model;

[0018] Figure 2 It is a three-dimensional structural schematic diagram of the first filter or the second filter of the present utility model.

[0019] In the figure: 1. Motor pump, 2. First filter, 3. Heat exchanger, 4. Second filter, 5. First installation component, 51. First positioning pipe, 52. First telescopic connecting pipe, 6. Second installation component, 61. Second positioning pipe, 62. Second telescopic connecting pipe. Detailed implementation manners

[0020] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0021] As Figure 1 is a structural schematic diagram of the present utility model, an oil cooling and filtering device for an injection molding machine. The oil cooling and filtering device is arranged on the injection molding machine. The oil cooling and filtering device includes a motor pump 1, a first filter 2, a heat exchanger 3, and a second filter 4. The input end of the motor pump 1 is connected to the oil output end of the injection machine, the output end of the motor pump 1 is connected to the input end of the first filter 2, the output end of the first filter 2 is connected to the heat medium inlet of the heat exchanger 3. The first filter 2 is used to filter the impurities precipitated in the oil after the temperature rises. The heat medium outlet of the heat exchanger 3 is connected to the input end of the second filter 4, and the output end of the second filter 4 is connected to the oil input end of the injection machine. The second filter 4 is used to filter the impurities precipitated in the oil after the temperature drops.

[0022] The heat exchanger 3 adopts a plate heat exchanger.

[0023] As Figure 1 shown, the oil cooling and filtering device further includes a first installation component 5. The first installation component 5 is used to install and fix the first filter 2, so that its installation and disassembly are fast, and the maintenance efficiency is improved. The first installation component 5 includes a first positioning pipe 51 and a first telescopic connecting pipe 52.

[0024] The first positioning pipe 51 is a rigid pipe. The input end of the first positioning pipe 51 is connected to the output end of the motor pump 1, the output end of the first positioning pipe 51 is connected to the input end of the first filter 2, and the first positioning pipe 51 is fixedly connected to the injection machine.

[0025] The input end of the first telescopic connecting pipe 52 is connected to the output end of the first filter 2, and the output end of the first telescopic connecting pipe 52 is connected to the heat medium inlet of the heat exchanger 3. The first telescopic connecting pipe 52 can change its own length; it is positioned and installed through a fixed-end structure at one end, and a telescopic structure at the other end leaves an installation space for the first filter 2 and facilitates the docking connection at the other end after the installation at the other end is completed, thereby improving the installation and disassembly efficiency.

[0026] The installation positions of the first positioning pipe 51 and the first telescopic connecting pipe 52 can be interchanged.

[0027] As Figure 1 shown, the oil cooling and filtering device further includes a second installation component 6. The second installation component 6 is used to install and fix the first filter 2, making its installation and disassembly quick and improving the maintenance efficiency. The second installation component 6 includes a second positioning pipe 61 and a second telescopic connecting pipe 62.

[0028] The second positioning pipe 61 is a rigid pipe. The input end of the second positioning pipe 61 is connected to the heat medium outlet of the heat exchanger 3, and the output end of the second positioning pipe 61 is connected to the input end of the second filter 4. The second positioning pipe 61 is fixedly connected to the injection machine.

[0029] The input end of the second telescopic connecting pipe 62 is connected to the output end of the second filter 4, and the output end of the second telescopic connecting pipe 62 is connected to the oil inlet of the injection machine. The second telescopic connecting pipe 62 can change its own length; it is positioned and installed through a fixed-end structure at one end, and a telescopic structure at the other end leaves an installation space for the second filter 4 and facilitates the docking connection at the other end after the installation at the other end is completed, thereby improving the installation and disassembly efficiency.

[0030] The installation positions of the second positioning pipe 61 and the second telescopic connecting pipe 62 can be interchanged.

[0031] As Figure 1 shown, both the first filter 2 and the second filter 4 are located on the left side of the motor pump 1, and the heat exchanger 3 is located on the right side of the motor pump 1. The first filter 2 and the second filter 4 are installed on the same side, which is convenient for synchronously replacing the first filter 2 and the second filter 4, reducing the movement of positions, and improving the maintenance and installation efficiency.

[0032] Taking the above ideal embodiments based on the present invention as an inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An oil cooling and filtering device for an injection molding machine, the oil cooling and filtering device being arranged on the injection molding machine, characterized in that: The oil cooling and filtering device comprises a motor pump (1), a first filter (2), a heat exchanger (3) and a second filter (4); the input end of the motor pump (1) is connected to the oil output end of the injection machine; the output end of the motor pump (1) is connected to the input end of the first filter (2); the output end of the first filter (2) is connected to the heat medium inlet of the heat exchanger (3); the first filter (2) is used to filter impurities precipitated in the oil after the temperature rises; the heat medium outlet of the heat exchanger (3) is connected to the input end of the second filter (4); the output end of the second filter (4) is connected to the oil input end of the injection machine; and the second filter (4) is used to filter impurities precipitated in the oil after the temperature drops.

2. The oil cooling and filtering device for an injection molding machine according to claim 1, characterized in that: The heat exchanger (3) is a plate heat exchanger.

3. The oil cooling and filtering device for an injection molding machine according to claim 1, characterized in that: The oil cooling and filtering device further comprises a first mounting assembly (5), wherein the first mounting assembly (5) comprises a first positioning tube (51) and a first telescopic connecting tube (52). The first positioning tube (51) is a hard tube, the input end of the first positioning tube (51) is connected to the output end of the motor pump (1), the output end of the first positioning tube (51) is connected to the input end of the first filter (2), and the first positioning tube (51) is fixedly connected to the injection machine. The input end of the first telescopic connecting pipe (52) is connected to the output end of the first filter (2), the output end of the first telescopic connecting pipe (52) is connected to the heat medium inlet of the heat exchanger (3), and the first telescopic connecting pipe (52) can change its own length.

4. The oil cooling and filtering device for an injection molding machine as claimed in claim 3, characterized in that: The installation positions of the first positioning tube (51) and the first telescopic connecting tube (52) are interchangeable.

5. The oil cooling and filtering device for an injection molding machine according to claim 1, characterized in that: The oil cooling and filtering device further comprises a second mounting assembly (6), wherein the second mounting assembly (6) comprises a second positioning tube (61) and a second telescopic connecting tube (62). The second positioning tube (61) is a hard tube, the input end of the second positioning tube (61) is connected to the heat medium outlet of the heat exchanger (3), the output end of the second positioning tube (61) is connected to the input end of the second filter (4), and the second positioning tube (61) is fixedly connected to the injection machine. The input end of the second telescopic connecting tube (62) is connected to the output end of the second filter (4), the output end of the second telescopic connecting tube (62) is connected to the oil input end of the injection machine, and the second telescopic connecting tube (62) can change its own length.

6. The oil cooling and filtering device for an injection molding machine as claimed in claim 5, characterized in that: The installation positions of the second positioning tube (61) and the second telescopic connecting tube (62) are interchangeable.

7. The oil cooling and filtering device for an injection molding machine according to claim 1, characterized in that: The first filter (2) and the second filter (4) are both located on the left side of the motor pump (1), and the heat exchanger (3) is located on the right side of the motor pump (1).

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