An assembled pure water equipment for cooling system of die casting machine

Abstract

This invention relates to the field of die-casting machine cooling technology, specifically disclosing an assembled pure water device for a die-casting machine cooling system. The device includes a filtration component, a cleaning component, an outlet water detection component, and an alarm component. The filtration component includes an outer casing, within which a primary filtration structure and several secondary filtration structures are arranged. A water path connects the primary filtration structure and the secondary filtration structures, and a switching structure is provided. The switching structure is used to switch the connection state between the primary filtration structure and the secondary filtration structures, where the primary filtration structure is connected to one of the secondary filtration structures via a water path. With the assistance of the switching structure, the water treated by the primary filtration structure can selectively enter different secondary filtration structures for further treatment according to the processing technology. This allows for targeted removal of impurities during the on-site recycling of cooling wastewater, minimizing the risk of nozzle clogging caused by recycled water.

Description

Technical Field

[0001] This invention relates to the field of die-casting machine cooling technology, specifically to an assembled pure water device for a die-casting machine cooling system. Background Technology

[0002] Die casting machines are used for pressure casting and include both hot and cold chamber types. Under pressure, the die casting machine injects molten metal into a mold to cool and solidify. After the mold is opened, a solid metal casting is obtained. During this process, the molten metal consumes a lot of heat, causing the temperature of the die casting parts to rise. Therefore, a cooling system is needed to ensure the normal operation of the die casting machine. For example, the supporting cooling system uses pure water as the coolant because the cold chamber is in direct contact with the casting. Existing cooling systems use multiple independently controlled nozzles to spray and cool the cold chamber after die casting. By sensing the temperature field distribution after die casting in the cold chamber, the number and position of the nozzles can be precisely controlled, reducing the use of cooling water and greatly avoiding the problem of substandard part quality caused by cooling water stagnation in the cold chamber.

[0003] Of course, even with precise nozzle control, cooling wastewater from the cold pressing chamber will still drip into the die-casting machine's collection tank after the cooling system starts. During multi-station processing, both water usage and wastewater generation are significant. Typically, pure water equipment is used to filter the wastewater for reuse to avoid substantial water waste. The problem is that existing pure water equipment usually only offers one filtration mode, while cold-press die-casting technology has continuously improved and is now applicable to casting various metal materials. For example, when casting magnesium-related metals, magnesium ions are predominant, easily forming common scale, thus requiring the removal of magnesium ions. Similarly, when casting aluminum-related metals, aluminum ions need to be removed to prevent the accumulation of aluminum deposits that could clog nozzles during reuse. The removal effect of a single-effect general-purpose filter is clearly inferior to that of a targeted filter.

[0004] In view of this, the present invention proposes an assembled pure water device for a die-casting machine cooling system, which can classify and treat wastewater generated from die casting of different metal materials. Summary of the Invention

[0005] The purpose of this invention is to provide an assembled pure water device for a die-casting machine cooling system, solving the following technical problems:

[0006] How to classify and treat wastewater generated from die casting of different metal materials.

[0007] The objective of this invention can be achieved through the following technical solutions:

[0008] An assembled pure water device for a die-casting machine cooling system includes:

[0009] The filter assembly includes a cleaning assembly, a water output detection assembly, and an alarm assembly. The filter assembly includes an outer casing, and a primary filter structure and several secondary filter structures are provided inside the outer casing. The primary filter structure and the several secondary filter structures are connected by a water circuit and a switching structure is provided. The switching structure is used to switch the connection state between the primary filter structure and the several secondary filter structures. The connection state is that the primary filter structure is connected to one of the several secondary filter structures by a water circuit.

[0010] The primary filtration structure includes a first housing, in which a filter screen for filtering wastewater is installed. The secondary filtration structure includes several secondary filtration boxes, in which different filter elements are installed.

[0011] The above technical solution involves switching the connection state between the primary filter structure and several secondary filter structures via a switching structure, thereby enabling the use of different filtration processes for different processed metals. The secondary filter structure of this invention is configured with several groups. With the help of the switching structure, the water treated by the primary filter structure can selectively enter different secondary filter structures for reprocessing according to the processing technology. In this way, impurities can be specifically removed during the on-site recycling of cooling wastewater, so as to minimize the problem of cooling system nozzle blockage caused by recycled water.

[0012] As a further technical solution of the present invention: the cleaning component is used to clean the primary filter structure after the switching structure has completed the switching of the connection state;

[0013] The secondary filter box is provided with a drain outlet, and the water outlet detection component is installed on the drain outlet. The alarm component determines whether to remind the user to replace the filter element of the corresponding secondary filter structure based on the detection result of the water outlet detection component after cleaning the primary filter structure.

[0014] The above technical solution involves using a cleaning component to assist the alarm component in determining whether the filter element of the secondary filtration structure is in an abnormal state. Specifically, the cleaning component of this invention cleans the filter screen of the primary filtration structure after each switch to a different secondary filtration structure. Through the cleaning of the cleaning component, the primary filtration structure after the connection state changes can be maintained at a stable filtration level and filtration effect. That is, during multiple switching processes, the state of the treated water passing through the primary filtration structure in the combined wastewater treatment water path is controlled by controlling variables. This facilitates detection from the drain outlet set on the filter box and, based on the detection results, determines whether to issue a corresponding alarm to remind staff to replace the filter element in a timely manner.

[0015] As a further technical solution of the present invention: the primary filtration structure further includes a fixed cover disposed in the outer box, the fixed cover is provided with a water inlet pipe, a first box is connected below the fixed cover, the first box is provided with a filter screen for filtering the wastewater entering the first box, a water guide pipe is connected below the first box, and the secondary filtration structure further includes a water outlet pipe connected to the secondary filtration box.

[0016] As a further technical solution of the present invention: the switching structure includes a water distribution tank, a water distribution plate is rotatably connected inside the water distribution tank, a power box is provided below the water distribution tank, the water distribution plate is driven to rotate by a driving component in the power box, a notch is provided on the side of the water distribution plate, and a water passage cavity is reserved between the water distribution plate and the top of the water distribution tank, and the water flow through the water guide pipe enters the notch through the water passage groove.

[0017] As a further technical solution of the present invention: a connecting cover that can slide up and down is provided inside the fixed cover, and a filter cartridge frame is connected below the connecting cover. The filter cartridge frame is vertically arranged and its side is provided with multiple sets of filter screens and water distribution plates from top to bottom. A third baffle and a second baffle are provided inside the first box. A first baffle is also provided on the filter cartridge frame. When the filter cartridge frame slides down to the limit position, the upper circular surface of the first baffle ring is not lower than the lower circular surface of the cylindrical third baffle. A number of through holes are opened on the second baffle. The filter cartridge frame slides up and down with the rotation of the water distribution plate.

[0018] As a further technical solution of the present invention: the upper surface of the third baffle is inclined, and the cleaning component includes a sealing ring disposed on the inner wall of the third baffle, wherein an annular cleaning block is disposed in the middle part of the sealing ring.

[0019] As a further technical solution of the present invention: a fixing rod is fixed below the fixing cover, a connecting rod is fixed on the connecting cover, the connecting rod is slidably connected inside the fixing rod, and an elastic element is provided between the fixing rod and the connecting rod, the elastic element providing an upward pulling force to the connecting rod.

[0020] The above technical solution provides the composition of the cleaning component and the pre-filtration structure. In specific use, the cleaning component of this invention drives the filter screen to move up and down through the filter cartridge frame and rubs against the annular cleaning block to clean the filter screen. Multiple sets of filter screens are provided. Cooling wastewater enters from the inlet pipe and is blocked by the third baffle and the first baffle, entering from the sides of multiple filter screens one after another and finally being discharged through the water guide pipe. The setting of multiple sets of filter screens increases the stability of the treated water state through the pre-filtration structure on the one hand, and the multiple sets of cleaning components improve the cleaning effect of the filter screen and reduce the space requirement for the up and down movement of the filter cartridge frame on the other hand.

[0021] As a further technical solution of the present invention: a movable rod is connected below the filter cartridge frame, the movable rod passes through the first box, a second helical gear is provided on the water distribution box, the second helical gear is coaxially connected to the water distribution plate, a rotating rod is rotatably connected on the water distribution box, a first helical gear is coaxially fixed on the rotating rod, the first helical gear meshes with the second helical gear, a cam is coaxially connected on the rotating rod, and the bottom of the movable rod contacts the side of the cam.

[0022] The above technical solution involves a power box driving the filter cartridge frame to move up and down. Specifically, after receiving a switching command, the power box first drives the water distribution plate to rotate. The rotating water distribution plate drives the cam to rotate through the meshing of the first and second helical gears. Then, with the bottom of the movable rod in contact with the side of the cam, the movable rod slides along the side of the cam, thus moving up and down. In this way, the filter screen can be cleaned in time by the cleaning component each time the connection state is switched. Furthermore, the connecting rod is slidably connected in the fixed rod. When the elastic element provides an upward pulling force to the connecting rod, the filter cartridge frame can vibrate, thereby increasing the number of times and the cleaning force of the cleaning component on the filter screen, further improving the cleaning effect and maintaining the filter screen processing state.

[0023] The beneficial effects of this invention are:

[0024] The present invention has several sets of secondary filtration structures. With the help of the switching structure, the water treated by the primary filtration structure can selectively enter different secondary filtration structures for further treatment according to the processing technology. In this way, impurities can be specifically removed during the on-site recycling of cooling wastewater, so as to minimize the problem of cooling system nozzle blockage caused by recycled water.

[0025] This invention, through the cleaning of the cleaning components, can maintain the primary filter structure at a stable filtration level and effect after changes in connection status. In other words, during multiple switching processes, the state of the treated water passing through the primary filter structure in the combined wastewater treatment water path is controlled by controlling variables. This facilitates detection from the drain outlet set on the filter box, and based on the detection results, it determines whether to issue a corresponding alarm to remind staff to replace the filter element in time.

[0026] This invention uses a mechanical method to ensure that the filter screen is cleaned promptly by the cleaning component each time the connection state is switched. Furthermore, the connecting rod is slidably connected to the fixed rod, and the elastic element provides an upward pulling force to the connecting rod, which causes the filter cartridge frame to vibrate, thereby increasing the number of times and the cleaning force of the cleaning component on the filter screen.

[0027] The cleaning component of this invention cleans the filter screen by moving it up and down through the filter cartridge frame and making frictional contact with the annular cleaning block. Multiple filter screens are provided. Cooling wastewater enters through the inlet pipe and, through the obstruction of the third and first baffles, enters from the sides of multiple filter screens sequentially and is finally discharged through the guide pipe. The multiple filter screens increase the stability of the treated water state through the primary filtration structure, and the multiple cleaning components enhance the cleaning effect on the filter screens while reducing the space required for the filter cartridge frame to move up and down. Attached Figure Description

[0028] The invention will now be further described with reference to the accompanying drawings.

[0029] Figure 1 This is a schematic cross-sectional view of the pure water equipment of the present invention;

[0030] Figure 2 This is a schematic diagram of the mounting structure of the fixed cover of the present invention;

[0031] Figure 3 This is a schematic diagram of the internal structure of the first housing of the present invention;

[0032] Figure 4 This is the present invention. Figure 3 A magnified view of part A;

[0033] Figure 5 This is a schematic diagram of the internal structure of the water distribution tank of the present invention;

[0034] Figure 6 This is a schematic diagram of the mounting structure of the cam of the present invention;

[0035] Figure 7 This is a schematic diagram of the installation structure of the secondary filter box of the present invention;

[0036] Figure 8 This is a schematic diagram of the cross-sectional structure of the water distribution tank of the present invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] 10. Outer box; 11. Fixed plate;

[0039] 20. First housing; 21. Water inlet pipe; 22. Fixing cover; 23. Connecting cover; 24. Fixing rod; 25. Connecting rod;

[0040] 30. Secondary filter box; 31. Drain outlet;

[0041] 40. Filter cartridge holder; 41. Filter screen; 42. Water distribution plate; 43. First baffle; 44. Movable rod; 45. Second baffle; 46. Third baffle; 47. Sealing ring; 48. Cleaning block;

[0042] 50. Water distribution tank; 51. Water guide pipe; 52. Water outlet pipe; 53. Power box; 54. First helical gear; 55. Water distribution plate; 56. Notch; 57. Second helical gear; 58. Rotating rod; 59. Cam. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0044] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the 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, and therefore should not be construed as a limitation of the invention. 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 indicated technical features. Thus, a feature defined with "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.

[0045] Please see Figures 1-8 As shown, in one embodiment, an assembled pure water device for a die-casting machine cooling system is provided, including: a filter assembly, a cleaning assembly, an outlet water detection assembly, and an alarm assembly. The filter assembly is provided with a fixing plate 11 fixedly connected to the outer casing 10 for fixation. The filter assembly includes the outer casing 10, and the outer casing 10 is provided with a primary filter structure and several secondary filter structures. The primary filter structure and several secondary filter structures are connected by water channels and a switching structure is provided. The switching structure is used to switch the connection state between the primary filter structure and several secondary filter structures. The connection state is that the primary filter structure is connected to one of the water channels of the several secondary filter structures.

[0046] refer to Figure 3The primary filtration structure includes a first chamber 20, which contains a filter screen 41 for filtering wastewater. The secondary filtration structure includes several secondary filtration boxes 30, which contain different filter elements. The filter elements of the secondary filtration structure are one of the commonly used filter elements for dealing with different metal ions and their compounds, such as activated carbon filter elements, resin filter elements, single-stage reverse osmosis filter elements, and two-stage reverse osmosis filter elements. The filter elements of the several secondary filtration structures are different from each other.

[0047] This embodiment provides a method to switch the connection state between the primary filter structure and several secondary filter structures by switching the structure, thereby realizing the use of different filtration processes to deal with different processed metals. The secondary filter structure of the present invention is provided in several groups. With the help of the switching structure, the water treated by the primary filter structure can selectively enter different secondary filter structures for reprocessing according to the processing technology. In this way, impurities can be specifically removed during the on-site recycling of cooling wastewater, so as to minimize the problem of cooling system nozzle blockage caused by recycled water.

[0048] In addition, the cleaning component is used to clean the primary filter structure after the switching structure completes the connection state switch; at the same time, the secondary filter box 30 is provided with a drain outlet 31 for the treated water to be discharged, and the water outlet detection component is set on the drain outlet 31. The alarm component determines whether to remind to replace the filter element of the corresponding secondary filter structure based on the detection result of the water outlet detection component after cleaning the primary filter structure.

[0049] This embodiment describes the process of using a cleaning component to assist the alarm component in determining whether the filter element of the secondary filtration structure is in an abnormal state. Specifically, the cleaning component of this invention cleans the filter screen 41 of the primary filtration structure each time a different secondary filtration structure is switched. Through the cleaning of the cleaning component, the primary filtration structure after the connection state changes can be maintained at a stable filtration level and filtration effect. That is, during multiple switching processes, the state of the treated water passing through the primary filtration structure in the combined wastewater treatment water path is controlled by controlling variables. This facilitates detection from the drain outlet 31 set on the secondary filtration box 30 and, based on the detection results, determines whether the filter element of the secondary filtration structure is in an abnormal state and whether to issue a corresponding alarm to remind the staff to replace the filter element in time.

[0050] refer to Figure 2 and Figure 3 The primary filtration structure also includes a fixed cover 22 disposed inside the outer casing 10. The fixed cover 22 is provided with an inlet pipe 21 for wastewater to enter. A first casing 20 is connected below the fixed cover 22. A filter screen 41 for filtering the wastewater entering the first casing 20 is disposed inside the first casing 20. A water guide pipe 51 is connected below the first casing 20. The secondary filtration structure also includes an outlet pipe 52 connected to the secondary filtration box 30.

[0051] The fixed cover 22 is provided with a sliding connecting cover 23. The filter cartridge frame 40 is connected below the connecting cover 23. The filter cartridge frame 40 is vertically arranged and its side is provided with multiple sets of filter screens 41 and water distribution plates 42 from top to bottom. The first box 20 is provided with a circular third baffle 46 and a second baffle 45. The filter cartridge frame 40 is also provided with a first baffle 43. When the filter cartridge frame 40 slides down to the limit position, the upper circular surface of the first baffle 43 ring is not lower than the lower circular surface of the cylindrical third baffle 46. The second baffle 45 is provided with several through holes. The filter cartridge frame 40 slides up and down with the rotation of the water distribution plate 55.

[0052] The upper surface of the third baffle 46 is inclined, and the cleaning component includes a sealing ring 47 disposed on the inner wall of the third baffle 46, and an annular cleaning block 48 is disposed in the middle part of the sealing ring 47.

[0053] A fixing rod 24 is fixed below the fixing cover 22, and a connecting rod 25 is fixed on the connecting cover 23. The connecting rod 25 is slidably connected inside the fixing rod 24. An elastic element is provided between the fixing rod 24 and the connecting rod 25. The elastic element provides an upward pulling force to the connecting rod 25. The elastic element is a spring.

[0054] This embodiment describes the composition of the cleaning component and the pre-filtration structure. In specific use, the cleaning component of the present invention drives the filter screen 41 to move up and down through the filter cartridge frame 40 and makes frictional contact with the annular cleaning block 48 to complete the cleaning of the filter screen 41. Multiple sets of filter screens 41 are provided. After the cooling wastewater enters from the inlet pipe 21, it enters from the sides of multiple filter screens 41 one after another through the blocking effect of the third baffle 46 and the first baffle 43 and is finally discharged through the water guide pipe 51. The setting of multiple sets of filter screens 41 increases the stability of the treated water state through the pre-filtration structure. On the other hand, multiple sets of cleaning components improve the cleaning effect of the filter screens 41 and reduce the space requirement for the up and down movement of the filter cartridge frame 40.

[0055] Reference 5- Figure 8 The switching structure includes a water distribution tank 50, a water distribution plate 55 with a rotating connecting ring inside the water distribution tank 50, a power box 53 below the water distribution tank 50, the water distribution plate 55 being driven to rotate by a drive component inside the power box 53, a notch 56 being opened on the side of the water distribution plate 55, a water passage cavity being reserved between the water distribution plate 55 and the top of the water distribution tank 50, water flowing through the water guide pipe 51 through the water passage groove into the notch 56, a movable rod 44 being connected below the filter cartridge frame 40, the movable rod 44 passing through the first tank 20, a second helical gear 57 being provided on the water distribution tank 50, the second helical gear 57 being coaxially connected to the water distribution plate 55, a rotating rod 58 being rotatably connected on the water distribution tank 50, a first helical gear 54 being coaxially fixed on the rotating rod 58, the first helical gear 54 meshing with the second helical gear 57, a cam 59 being coaxially connected on the rotating rod 58, and the bottom of the movable rod 44 contacting the side of the cam 59.

[0056] In this embodiment, a scheme is provided in which the filter cartridge frame 40 is driven to move up and down by the power box 53. Specifically, after receiving the switching command, the power box 53 of the present invention first drives the water distribution plate 55 to rotate. The rotating water distribution plate 55 drives the cam 59 to rotate through the meshing action of the first helical gear 54 and the second helical gear 57. Then, when the bottom of the movable rod 44 contacts the side of the cam 59, the movable rod 44 slides along the side of the cam 59, thereby moving up and down. In this way, the filter screen 41 can be cleaned in time by the cleaning component every time the connection state is switched. The connecting rod 25 is slidably connected in the fixed rod 24. When the elastic element provides an upward pulling force to the connecting rod 25, the filter cartridge frame 40 can vibrate, thereby increasing the number of times and the cleaning force of the cleaning component on the filter screen 41, further improving the cleaning effect and maintaining the processing state of the filter screen 41.

[0057] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A modular pure water device for a die-casting machine cooling system, comprising a filtration assembly, a cleaning assembly, an outlet water detection assembly, and an alarm assembly, characterized in that: The filter assembly includes an outer casing (10), and a primary filter structure and several secondary filter structures are provided inside the outer casing (10). The primary filter structure and several secondary filter structures are connected by water channels and a switching structure is provided. The switching structure is used to switch the connection state between the primary filter structure and several secondary filter structures. The connection state is that the primary filter structure is connected to one of the several secondary filter structures by water channels. The primary filtration structure includes a first housing (20), in which a filter screen (41) for filtering wastewater is provided; the secondary filtration structure includes a plurality of secondary filtration boxes (30), in which different filter elements are provided. The secondary filter box (30) is provided with a drain outlet (31), and the water outlet detection component is provided on the drain outlet (31). The alarm component determines whether to remind the user to replace the filter element of the corresponding secondary filter structure based on the detection result of the water outlet detection component after cleaning the primary filter structure. The primary filtration structure also includes a fixed cover (22) disposed inside the outer casing (10), an inlet pipe (21) disposed on the fixed cover (22), a first casing (20) connected below the fixed cover (22), a filter screen (41) disposed inside the first casing (20) for filtering the wastewater entering the first casing (20), a water guide pipe (51) connected below the first casing (20), and the secondary filtration structure also includes an outlet pipe (52) connected to the secondary filtration box (30). The switching structure includes a water distribution tank (50), the water outlet pipe (52) is connected to the water distribution tank (50), the water distribution tank (50) has a rotating connecting ring with a water distribution plate (55), the water distribution tank (50) is provided with a power box (53) below the water distribution tank (50), the water distribution plate (55) is driven to rotate by the driving component in the power box (53), the water distribution plate (55) has a notch (56) on its side, and a water passage cavity is reserved between the water distribution plate (55) and the top of the water distribution tank (50). The water flow through the water guide pipe (51) enters the notch (56) through the water passage groove. The fixed cover (22) is provided with a sliding connecting cover (23). A filter cartridge frame (40) is connected below the connecting cover (23). The filter cartridge frame (40) is vertically arranged and has multiple sets of filter screens (41) and water distribution plates (42) arranged from top to bottom on its side. The first box (20) is provided with a circular third baffle (46) and a second baffle (45). The filter cartridge frame (40) is also provided with a first baffle (43). When the filter cartridge frame (40) slides down to the limit position, the upper circular surface of the first baffle (43) is not lower than the lower circular surface of the cylindrical third baffle (46). The second baffle (45) is provided with several through holes. The filter cartridge frame (40) slides up and down with the rotation of the water distribution plate (55). The upper surface of the third baffle (46) is inclined, and the cleaning component includes a sealing ring (47) disposed on the inner wall of the third baffle (46), and an annular cleaning block (48) is disposed in the middle part of the sealing ring (47).

2. The assembled pure water equipment for a die-casting machine cooling system according to claim 1, characterized in that, A fixing rod (24) is fixed below the fixing cover (22), and a connecting rod (25) is fixed on the connecting cover (23). The connecting rod (25) is slidably connected inside the fixing rod (24). An elastic element is provided between the fixing rod (24) and the connecting rod (25), and the elastic element provides an upward pulling force to the connecting rod (25).

3. The assembled pure water equipment for a die-casting machine cooling system according to claim 2, characterized in that, A movable rod (44) is connected below the filter cartridge frame (40). The movable rod (44) passes through the first housing (20). A second helical gear (57) is provided on the water distribution housing (50). The second helical gear (57) is coaxially connected to the water distribution plate (55). A rotating rod (58) is rotatably connected on the water distribution housing (50). A first helical gear (54) is coaxially fixed on the rotating rod (58). The first helical gear (54) meshes with the second helical gear (57). A cam (59) is coaxially connected on the rotating rod (58). The bottom of the movable rod (44) contacts the side of the cam (59).

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