Cooling liquid filtering device

Abstract

The utility model relates to the field of machining, in particular to a cooling liquid filtering device, which comprises a liquid inlet pipe, a liquid outlet pipe, a liquid outlet pipe and a liquid outlet pipe, a conical filter is arranged in the first-stage filter pipe, the bottom edge of the conical filter is tightly connected with the inner wall of the first-stage filter pipe, and a through hole is formed in the top of the conical filter; a filter screen is arranged in the secondary filter pipe; the liquid inlet pipe, the first-stage filter pipe and the second-stage filter pipe are sequentially connected from top to bottom. The cooling liquid filtering device provided by the utility model is ingenious and simple in structural design, is beneficial to maintenance and replacement while ensuring the filtering precision, and reduces the cost.

Description

Technical Field

[0001] The utility model relates to the field of mechanical processing, in particular to a cooling liquid filtering device. Background Art

[0002] When CNC machine tools are performing mechanical processing, high temperatures will be generated, which will damage the equipment and the surface of the workpiece. Therefore, during processing, it is necessary to spray coolant to cool the processing tools and workpieces. After use, the coolant can be uniformly recovered by the coolant recovery tank for recycling. Since the recovered coolant contains a large amount of impurities such as machining chips, the impurities contained therein need to be filtered after recovery. The structure of the filter device can refer to the Chinese utility model patent with application number CN202223474790.6 and the name of a coolant filter structure for a CNC drilling machine. The existing coolant filter device is relatively complex in design. Although the filtering accuracy is guaranteed, the cost is high and it is not easy to maintain and replace. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a cooling liquid filtering device which is low-cost, easy to maintain and replace.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a coolant filtering device, comprising:

[0005] The liquid inlet pipe has a conical water distributor inside, and there is a gap between the bottom edge of the conical water distributor and the inner wall of the liquid inlet pipe;

[0006] The first-stage filter tube has a conical filter inside, the bottom edge of the conical filter is closely connected to the inner wall of the first-stage filter tube, and the top of the conical filter is provided with a through hole;

[0007] A secondary filter tube with a filter screen inside;

[0008] The liquid inlet pipe, the primary filter pipe and the secondary filter pipe are connected in sequence from top to bottom.

[0009] Furthermore, a cross-shaped support rod is provided in the liquid inlet pipe, and a clamping groove for supporting the conical water distributor is provided on the cross-shaped support rod.

[0010] Furthermore, an internal thread is provided in the primary filter tube, and an external thread screwed to the internal thread is provided on the conical filter.

[0011] Furthermore, an annular support platform for supporting the filter screen is provided in the secondary filter tube.

[0012] Furthermore, the liquid inlet pipe, the primary filter pipe and the secondary filter pipe are sequentially locked together through the joint flange.

[0013] The beneficial effects of the utility model are: a coolant filter device, when in use, connects the liquid inlet pipe to the outlet of the machine tool coolant recovery tank, and then connects the liquid inlet pipe, the primary filter pipe and the secondary filter pipe in sequence from top to bottom. After the coolant flows into the liquid inlet pipe, it is dispersed under the water distribution effect of the conical water distributor and flows downward along the inner wall of the liquid inlet pipe. Then, the coolant after entering the primary filter pipe flows along the inner wall of the pipe and gathers at the position between the conical filter and the inner wall of the pipe. At this time, larger impurities are deposited on the periphery of the conical filter, and the coolant gradually submerges the through hole and flows out of the through hole as the liquid level rises, and finally enters the secondary filter pipe, and uses the filter screen in the secondary filter pipe for secondary filtration to filter out smaller impurities in the coolant. The coolant filter device provided by the utility model has an ingenious and simple structural design, which is conducive to maintenance and replacement while ensuring the filtering accuracy, and reduces the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the coolant filtering device;

[0015] Figure 2 is another structural schematic diagram of a coolant filtering device;

[0016] Description of labels:

[0017] 1. Liquid inlet pipe; 11. Conical water distributor; 12. Cross-shaped support rod; 2. Primary filter tube; 21. Conical filter; 211. Through hole; 3. Secondary filter tube; 31. Filter screen; 32. Annular support platform. DETAILED DESCRIPTION

[0018] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0019] The utility model provides a cooling liquid filtering device which is applied to a cooling liquid recovery filtering system of a machine tool.

[0020] Please refer to Figure 1 to Figure 2 As shown, a coolant filtering device of the utility model comprises:

[0021] The liquid inlet pipe 1 has a conical water distributor 11 inside, and there is a gap between the bottom edge of the conical water distributor 11 and the inner wall of the liquid inlet pipe 1;

[0022] The primary filter tube 2 has a conical filter 21 disposed therein, the bottom edge of the conical filter 21 is in close contact with the inner wall of the primary filter tube 2, and the top of the conical filter 21 is provided with a through hole 211;

[0023] A secondary filter tube 3, with a filter screen 31 inside;

[0024] The liquid inlet pipe 1, the primary filter pipe 2 and the secondary filter pipe 3 are connected in sequence from top to bottom.

[0025] From the above description, it can be seen that the beneficial effect of the utility model is: a coolant filter device, when in use, the liquid inlet pipe 1 is connected to the outlet of the machine tool coolant recovery tank, and then the liquid inlet pipe 1, the primary filter pipe 2 and the secondary filter pipe 3 are connected in sequence from top to bottom. After the coolant flows into the liquid inlet pipe 1, it is dispersed and flows downward along the inner wall of the liquid inlet pipe 1 under the water distribution effect of the conical water distributor 11. Then, the coolant after entering the primary filter pipe 2 flows along the inner wall of the pipe and gathers at the position between the conical filter 21 and the inner wall of the pipe. At this time, larger impurities are deposited on the periphery of the conical filter 21, and the coolant gradually submerges the through hole 211 and flows out of the through hole 211 as the liquid level rises, and finally enters the secondary filter pipe 3, and the filter screen 31 in the secondary filter pipe 3 is used for secondary filtration to filter out smaller impurities in the coolant. The coolant filter device provided by the utility model has an ingenious and simple structural design, which is conducive to maintenance and replacement while ensuring the filtering accuracy, and reduces the cost.

[0026] In an optional embodiment, a cross-shaped support rod 12 is provided in the liquid inlet pipe 1 , and a groove for supporting the conical water distributor 11 is provided on the cross-shaped support rod 12 .

[0027] It can be seen from the above description that the conical water distributor 11 is arranged in the liquid inlet pipe 1, and is mounted on the cross-shaped support rod 12, and is fixed and limited by the card slot.

[0028] In an optional embodiment, an internal thread is provided in the primary filter tube 2, and an external thread screwed to the internal thread is provided on the conical filter 21.

[0029] It can be seen from the above description that the conical filter 21 is installed in the primary filter tube 2 by means of threaded fitting, and is easy to assemble and disassemble.

[0030] In an optional embodiment, an annular support platform 32 for supporting the filter screen 31 is provided in the secondary filter tube 3 .

[0031] It can be seen from the above description that the annular support platform 32 plays a role of limiting support for the filter screen 31. In order to better filter and collect impurities, the filter screen 31 adopts an inverted cone structure.

[0032] In an optional embodiment, the liquid inlet pipe 1, the primary filter pipe 2 and the secondary filter pipe 3 are sequentially locked together through joint flanges.

[0033] Please refer to Figure 1 to Figure 2 As shown, the first embodiment of the utility model is: a coolant filtering device, comprising:

[0034] The liquid inlet pipe 1 has a conical water distributor 11 inside, and there is a gap between the bottom edge of the conical water distributor 11 and the inner wall of the liquid inlet pipe 1;

[0035] The primary filter tube 2 has a conical filter 21 disposed therein, the bottom edge of the conical filter 21 is in close contact with the inner wall of the primary filter tube 2, and the top of the conical filter 21 is provided with a through hole 211;

[0036] A secondary filter tube 3, with a filter screen 31 inside;

[0037] The liquid inlet pipe 1, the primary filter pipe 2 and the secondary filter pipe 3 are connected in sequence from top to bottom.

[0038] A cross-shaped support rod 12 is provided in the liquid inlet pipe 1, and a slot for supporting the conical water distributor 11 is provided on the cross-shaped support rod 12. An internal thread is provided in the primary filter pipe 2, and an external thread screwed to the internal thread is provided on the conical filter 21. An annular support platform 32 for supporting the filter screen 31 is provided in the secondary filter pipe 3. The liquid inlet pipe 1, the primary filter pipe 2 and the secondary filter pipe 3 are sequentially locked through the joint flange.

[0039] In summary, the coolant filter device of the utility model, when in use, connects the liquid inlet pipe to the outlet of the machine tool coolant recovery tank, and then connects the liquid inlet pipe, the primary filter pipe and the secondary filter pipe in sequence from top to bottom. After the coolant flows into the liquid inlet pipe, it is dispersed and flows downward along the inner wall of the liquid inlet pipe under the water distribution effect of the conical water distributor. Then, the coolant after entering the primary filter pipe flows along the inner wall of the pipe and gathers at the position between the conical filter and the inner wall of the pipe. At this time, larger impurities are deposited on the periphery of the conical filter, and the coolant gradually submerges the through hole and flows out of the through hole as the liquid level rises, and finally enters the secondary filter pipe, and uses the filter screen in the secondary filter pipe for secondary filtration to filter out smaller impurities in the coolant. The coolant filter device provided by the utility model has an ingenious and simple structural design, which is conducive to maintenance and replacement while ensuring the filtering accuracy, and reduces the cost.

[0040] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A coolant filter device, characterized in that: include: The liquid inlet pipe has a conical water distributor inside, and there is a gap between the bottom edge of the conical water distributor and the inner wall of the liquid inlet pipe; The first-stage filter tube has a conical filter inside, the bottom edge of the conical filter is closely connected to the inner wall of the first-stage filter tube, and the top of the conical filter is provided with a through hole; A secondary filter tube with a filter screen inside; The liquid inlet pipe, the primary filter pipe and the secondary filter pipe are connected in sequence from top to bottom.

2. The coolant filter device according to claim 1, characterized in that: A cross-shaped support rod is arranged in the liquid inlet pipe, and a clamping groove for supporting the conical water distributor is arranged on the cross-shaped support rod.

3. The coolant filter device according to claim 1, characterized in that: An internal thread is arranged in the primary filter tube, and an external thread which is screwed to the internal thread is arranged on the conical filter.

4. The coolant filter device according to claim 1, characterized in that: An annular support platform for supporting the filter screen is arranged in the secondary filter tube.

5. The coolant filter device according to claim 1, characterized in that: The liquid inlet pipe, the primary filter pipe and the secondary filter pipe are locked in sequence through the joint flange.

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