An efficient filter

Abstract

The present invention discloses an efficient filter, which relates to the technical field of filters and includes a recovery tank. A pretreatment device is connected inside the recovery tank. The filter also includes: a fixed housing fixedly connected inside the recovery tank; a filtering mechanism connected inside the fixed housing, the input end of which is communicated with the output end of the pretreatment device. The filtering mechanism includes a replaceable filtering structure; a manufacturing mechanism, which includes a mounting frame fixedly connected inside the fixed housing. By setting the manufacturing mechanism and the replacement mechanism, the manufacturing mechanism can use polyurethane adhesive in real time to bond a filter screen, polyester fiber filter paper and glass fiber filter paper to form a filter element, and the replacement mechanism can replace the old filter element with a new one to ensure timely replacement when the filter paper is worn or blocked, so as to maintain efficient filtering performance and avoid aging during the standby period of prefabrication, which affects its bonding strength and elasticity.

Description

Technical Field

[0001] The present invention relates to the technical field of filters, and in particular to an efficient filter. Background Art

[0002] When manufacturing parts in a workshop, cutting fluid is required. The used cutting fluid contains a large amount of metal particle impurities and other impurities. The density of these impurities is quite different from that of the cutting fluid. In the prior art, a hydrocyclone is often used for separation, and then the cutting fluid is further filtered using filter paper and a filter screen. However, as the filtration progresses, the permeability of the filter paper and the filter screen gradually decreases, the filtration speed slows down, and even the filtration process may not proceed normally, affecting the normal filtration effect.

[0003] In the prior art, a filter element replacement device is adopted. Only by inserting the filter element into the accommodation cavity can the installation of the filter element be completed. In this way, the filter element cannot be fabricated on-site, and it is easy for the filter element to age during long-term storage, affecting its filtration effect and reducing the filtration performance of the filter element. When a single-layer filter element is used for filtration, in this way, the mechanical properties of the single-layer filter element are poor. There may be some sharp solid particles or hard impurities in the cutting fluid, which will cause mechanical damage to the filter paper or the filter screen during the filtration process. Moreover, when the filtration pressure is too high or the filtration speed is too fast, it may also cause the filter paper or the filter screen to bear excessive pressure and rupture, affecting the filtration performance of the filter element. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art that the filter element cannot be fabricated on-site, it is easy for the filter element to age during long-term storage, affecting its filtration effect and reducing the filtration performance of the filter element, and to propose an efficient filter.

[0005] To achieve the above purpose, the present invention adopts the following technical solution: An efficient filter includes a recovery tank, and a pretreatment device is connected inside the recovery tank. It further includes:

[0006] A fixed housing, which is fixedly connected inside the recovery tank;

[0007] A filtering mechanism, which is connected inside the fixed housing, and its input end is communicated with the output end of the pretreatment device. The filtering mechanism includes a replaceable filtering structure;

[0008] Manufacturing mechanism, the manufacturing mechanism includes a mounting rack fixedly connected inside the fixed housing. There are two sets of unwinding and rewinding devices inside the mounting rack. Filter paper is wound on the unwinding and rewinding devices. Two liftable negative pressure components are connected inside the mounting rack. The opposite sides of the two negative pressure components face two layers of filter paper, and both are connected with retractable cutting components. The bottom of the upper negative pressure component is connected with a filter screen and a glue application device. The glue application device bonds the filter screen and the two layers of filter paper through glue application. After the filter screen and the two layers of filter paper are bonded, they form a filter element;

[0009] Replacement mechanism, the replacement mechanism is connected inside the fixed housing, and its output end is connected with a first filter cartridge. The filter element is magnetically matched with the first filter cartridge to form a new filtering structure.

[0010] In the above high-efficiency filter, the pretreatment device includes a plurality of hydrocyclones arranged inside the recovery tank. The input ends of the plurality of hydrocyclones are all communicated with the same water inlet, the tops are communicated with overflow pipes, and the bottoms are all communicated with the inside of the recovery tank. The ends of the plurality of overflow pipes far away from the hydrocyclones are all communicated with the input end of the filtering mechanism. There is a discharge port at the bottom of the recovery tank.

[0011] In the above high-efficiency filter, the filtering mechanism includes an annular pipeline fixedly connected to the inner top of the fixed housing. The ends of the plurality of overflow pipes far away from the hydrocyclones all penetrate through the top wall of the fixed housing in a sealed manner and are all communicated with the annular pipeline. The middle of the annular pipeline is communicated with a water outlet pipe. The water outlet pipe is in an L shape, and the end far away from the annular pipeline penetrates through the fixed housing and the recovery tank in a sealed manner. The filtering structure includes a second filter cartridge and a filter element connected inside the second filter cartridge. The vertical section of the water outlet pipe is truncated to form an upstream pipe section and a downstream pipe section, and the two are communicated through the second filter cartridge. The second filter cartridge is in sealed sliding fit with both the upstream pipe section and the downstream pipe section. A clamping device is installed on the upstream pipe section, and the clamping device is in clamping fit with the second filter cartridge.

[0012] In the above high-efficiency filter, there is also a third set of unwinding and rewinding devices inside the mounting rack. A steel coil is wound on this unwinding and rewinding device. The two layers of filter paper are a polyester fiber filter paper strip and a glass fiber filter paper strip respectively. The polyester fiber filter paper strip, the steel coil, and the glass fiber filter paper strip are distributed from top to bottom in sequence. A circular hole for the movement of the lower negative pressure component is opened in the middle of the steel coil.

[0013] In the above high-efficiency filter, a tensioning component, a deviation rectifying component, and a limiting component are installed inside the mounting rack. The tensioning component is used to tension the polyester fiber filter paper strip, the steel coil, and the glass fiber filter paper strip. The deviation rectifying component is used to align the polyester fiber filter paper strip and the glass fiber filter paper strip. The limiting component is used to adjust the position of the middle of the steel coil.

[0014] In the above-mentioned high-efficiency filter, a first electric telescopic rod is installed at the inner top of the mounting frame, and a second electric telescopic rod is installed at the inner bottom. The output end of the first electric telescopic rod is magnetically connected to the negative pressure component above, and the output end of the second electric telescopic rod is fixedly connected to the negative pressure component below.

[0015] In the above-mentioned high-efficiency filter, the negative pressure component above includes a first mounting shell and a second mounting shell fixedly connected to each other. A plurality of first electromagnets are installed at the inner top of the first mounting shell, and a plurality of second electromagnets are installed at the inner bottom of the second mounting shell. The output ends of the plurality of first electric telescopic rods are magnetically matched with the plurality of first electromagnets one by one. A second fan is installed at the inner top of the second mounting shell. The filter screen abuts against the bottom of the second mounting shell and is magnetically matched with the plurality of second electromagnets. The gluing device is connected between the first mounting shell and the second mounting shell;

[0016] The negative pressure component below includes a third mounting shell fixedly connected to the second electric telescopic rod, and a first fan is installed at the inner bottom of the third mounting shell;

[0017] Both the opposite sides of the second mounting shell and the third mounting shell are of a porous structure. The interior of the second mounting shell is a heating chamber, and the interior of the third mounting shell is a dust collection chamber.

[0018] In the above-mentioned high-efficiency filter, annular grooves are formed on both the opposite sides of the second mounting shell and the third mounting shell. Electric push rods are installed inside the annular grooves. The output end of the upper electric push rod is fixedly connected to a first annular cutter, and the output end of the lower electric push rod is fixedly connected to a second annular cutter. Heating blocks are installed on both the first annular cutter and the second annular cutter. The first annular cutter and the second annular cutter are coaxially arranged, and the diameter of the first annular cutter is larger than that of the second annular cutter;

[0019] A communication groove is communicated with the inner side of the upper annular groove, and the end of the communication groove far away from the annular groove is communicated with the interior of the heating chamber.

[0020] In the above-mentioned high-efficiency filter, the gluing device includes a second motor installed inside the first mounting shell. The output end of the second motor is coaxially and fixedly connected to a gear. The gear meshes with an internal gear ring. The bottom of the internal gear ring is coaxially fixedly connected to a rotating ring. The rotating ring is rotatably connected between the first mounting shell and the second mounting shell. Two groups of electric telescopic rods are installed at the bottom of the rotating ring. A spring is fixedly connected between the top of one group of electric telescopic rods and the rotating ring, and the output end is fixedly connected to a fixed rod. The end of the fixed rod far away from the electric telescopic rod group is rotatably connected to a first rubber head, and the first rubber head is communicated with a water delivery pipe through a rotating joint;

[0021] The top of another electric telescopic rod group is fixedly connected to the rotating ring, and the output end is fixedly connected with a brush head and a connecting frame. The brush head is communicated with a glue delivery pipe. The connecting frame includes a first connecting rod fixedly connected to the output end of the electric telescopic rod group. A small motor is installed at one end of the first connecting rod away from the electric telescopic rod group. The output end of the small motor is fixedly connected with a second connecting rod. A second rubber head is rotatably connected to one end of the second connecting rod away from the small motor;

[0022] The two electric telescopic rod groups are distributed on both sides of the rotating ring and are both used to drive their output ends to move in the vertical plane. The diameter of the first rubber head is smaller than that of the second rubber head. The edge of the filter screen is wavy and fixedly connected with a rubber strip.

[0023] In the above-mentioned high-efficiency filter, the replacement mechanism includes a telescopic plate fixedly connected to the inner wall of the fixed housing. A clamping component is installed at the output end of the telescopic plate. The clamping component is clamped and matched with the first installation housing;

[0024] The replacement mechanism further includes two mounting plates fixedly connected to the inner bottom of the fixed housing. A lead screw is rotatably connected between the two mounting plates, and a limiting rod is fixedly connected. A first motor is installed on one mounting plate. The output end of the first motor penetrates the mounting plate and is coaxially fixedly connected with the lead screw. Both the first filter cartridge and the second filter cartridge are threadedly connected to the lead screw through sliders and slidably connected to the limiting rod.

[0025] Compared with the existing technology, the advantages of the present invention are as follows:

[0026] 1. By setting the manufacturing mechanism and the replacement mechanism, the manufacturing mechanism can use polyurethane adhesive in real time to bond the filter screen, polyester fiber filter paper and glass fiber filter paper to form a filter element, and the replacement mechanism can replace the old filter element with a new one to ensure timely replacement when the filter paper is worn or blocked, so as to maintain high-efficiency filtering performance; the wavy filter screen increases the effective filtering area, and at the same time disperses the fluid impact force to protect the filter paper below. The polyester fiber filter paper intercepts larger particles to protect the filter paper below, and the glass fiber filter paper intercepts micron-sized particles to improve the filtering accuracy and enhance the filtering performance of the filter element; the increase in the bonding area between the polyester fiber filter paper and the edge of the filter screen can also improve the overall structural stability, reduce the problem of loosening or falling off caused by water flow impact, and maintain a stable state in the face of the water flow pressure when starting up again after water storage during shutdown; the on-site bonding of the filter element can ensure the good buffering ability of the polyurethane adhesive, avoid the aging of the pre-made filter element during the standby period, which affects its bonding strength and elasticity, and ensure the filtering performance of the filter element.

[0027] 2. The present invention sets up a manufacturing mechanism. First, the cutting component performs a hot cutting operation on the polyester fiber filter strip and the glass fiber filter strip. Then, the liftable negative pressure component fixes the cut polyester fiber filter paper sheet and glass fiber filter paper sheet by negative pressure adsorption and drives them to move. In cooperation with the gluing device, two gluing operations and three pressing operations are carried out to bond the filter net, the polyester fiber filter paper sheet, and the glass fiber filter paper sheet to manufacture the filter element, completing the on-site manufacture of the filter element and ensuring the filtering effect of the filter element. After the manufacture is completed, only the filter net needs to be replenished to carry out the manufacture of the next filter element, reducing the burden on the staff and improving the manufacturing efficiency and automation level.

[0028] 3. The present invention sets up a gluing device. During the secondary gluing operation, the second motor works, driving the rotating ring to rotate through the gear and the internal gear ring. The rotating ring drives the brush head and the second rubber head to move through the electric telescopic rod group, and the second rubber head is simultaneously controlled to rotate reciprocally. Thus, when the brush head applies glue, the second rubber head intermittently presses the upper surface edge of the polyester fiber filter paper sheet, facilitating the distortion of the edge of the polyester fiber filter paper sheet to fit the wavy contour of the subsequent filter net, reducing the gap between the subsequent filter net and the polyester fiber filter paper sheet during bonding, and improving the bonding effect of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a schematic diagram of the overall structure of a high-efficiency filter proposed by the present invention;

[0030] Figure 2 is a schematic diagram of the full-section structure of the fixed housing of a high-efficiency filter proposed by the present invention;

[0031] Figure 3 is a top view of the full-section of the fixed housing of a high-efficiency filter proposed by the present invention;

[0032] Figure 4 is a schematic diagram of the internal structure of the fixed housing of a high-efficiency filter proposed by the present invention;

[0033] Figure 5 is a side view of the mounting bracket of a high-efficiency filter proposed by the present invention;

[0034] Figure 6 is Figure 5 a detailed enlarged view of part A;

[0035] Figure 7 is Figure 5 a detailed enlarged view of part B;

[0036] Figure 8 is a schematic diagram of the structure of the brush head of a high-efficiency filter proposed by the present invention;

[0037] Figure 9Full-sectional structure schematic diagram of the first installation housing of an efficient filter proposed by the present invention;

[0038] Figure 10 Inverted full-sectional structure schematic diagram of the first installation housing of an efficient filter proposed by the present invention;

[0039] Figure 11 Is Figure 10 Enlarged detail view of part C of;

[0040] Figure 12 Full-sectional structure schematic diagram of the third installation housing of an efficient filter proposed by the present invention.

[0041] In the figure: 1, recovery pool; 2, discharge port; 3, hydrocyclone; 4, water inlet; 5, overflow pipe; 6, fixed housing; 7, water outlet pipe; 8, annular pipeline; 9, mounting frame; 10, mounting plate; 11, first motor; 12, lead screw; 13, limit rod; 14, clamping device; 15, first filter cartridge; 16, telescopic plate; 17, second filter cartridge; 18, first electric telescopic rod; 19, polyester fiber filter strip; 20, steel coil; 21, fiberglass filter strip; 22, tensioning assembly; 23, deviation rectifying assembly; 24, limiting assembly; 25, first installation housing; 26, second installation housing; 27, third installation housing; 28, first fan; 29, second electric telescopic rod; 30, electric telescopic rod group; 31, fixed rod; 32, first rubber head; 33, water delivery pipe; 34, filter screen; 35, brush head; 36, glue delivery pipe; 37, second rubber head; 38, second fan; 39, second motor; 40, gear; 41, internal gear ring; 42, rotating ring; 43, first electromagnet; 44, heating chamber; 45, second electromagnet; 46, first annular cutter; 47, heating block; 48, dust collection chamber; 49, second annular cutter. Specific embodiments

[0042] The following embodiments are only for illustrative purposes and are not intended to limit the scope of the present invention.

[0043] Referring to Figures 1-4 , an efficient filter, including a recovery pool 1, the inside of the recovery pool 1 is connected with a pretreatment device, and further includes:

[0044] The pretreatment device includes a plurality of hydrocyclones 3 arranged inside the recovery pool 1. The input ends of the plurality of hydrocyclones 3 are all communicated with the same water inlet 4, the tops are communicated with the overflow pipe 5, and the bottoms are all communicated with the inside of the recovery pool 1. One ends of the plurality of overflow pipes 5 far away from the hydrocyclones 3 are all communicated with the input end of the filtering mechanism. A discharge port 2 is arranged at the bottom of the recovery pool 1.

[0045] The hydrocyclone 3 adopts the existing technology and is a device that uses centrifugal force to separate two-phase or multi-phase media. After the fluid is introduced tangentially at a certain speed, the impurity particles with a larger density slide downward along the wall of the device, and the cutting fluid with a smaller density flows out from the overflow pipe 5 to complete the separation.

[0046] The fixed housing 6 is fixedly connected inside the recovery tank 1.

[0047] The water inlet device 4 is fixed on the top of the fixed housing 6, and the hydrocyclone 3 is fixed inside the recovery tank 1 through a bracket to improve its stability during operation.

[0048] The filtering mechanism is connected inside the fixed housing 6, and its input end is communicated with the output end of the pretreatment device. The filtering mechanism includes a replaceable filtering structure.

[0049] The filtering mechanism includes an annular pipe 8 fixedly connected to the inner top of the fixed housing 6. One end of each of the multiple overflow pipes 5 away from the hydrocyclone 3 hermetically penetrates the top wall of the fixed housing 6 and is communicated with the annular pipe 8. A water outlet pipe 7 is communicated in the middle of the annular pipe 8. The water outlet pipe 7 is in an L shape, and the end away from the annular pipe 8 hermetically penetrates the fixed housing 6 and the recovery tank 1. The filtering structure includes a second filter cartridge 17 and a filtering element connected inside the second filter cartridge 17. The vertical section of the water outlet pipe 7 is truncated to form an upstream pipe section and a downstream pipe section, and the two are communicated through the second filter cartridge 17. The second filter cartridge 17 is in sealed sliding fit with both the upstream pipe section and the downstream pipe section. A clamping device 14 is installed on the upstream pipe section, and the clamping device 14 is in clamping fit with the second filter cartridge 17.

[0050] The clamping device 14 adopts the existing technology and is used to fix the second filter cartridge 17 to the water outlet pipe 7 to ensure the sealed connection effect between the two.

[0051] Refer to Figure 4 、 Figure 5 、 Figures 9-12 , the manufacturing mechanism. The manufacturing mechanism includes a mounting rack 9 fixedly connected inside the fixed housing 6. There are two sets of unwinding and rewinding devices inside the mounting rack 9, and filter paper is wound on the unwinding and rewinding devices. Two liftable negative pressure components are connected inside the mounting rack 9. The opposite sides of the two negative pressure components face two layers of filter paper, and both are connected with retractable cutting components. A filter screen 34 and a glue application device are connected to the bottom of the upper negative pressure component. The glue application device glues the filter screen 34 and the two layers of filter paper through glue application, and the filter screen 34 and the two layers of filter paper form a filtering element after being glued together.

[0052] Inside the mounting bracket 9, there is also a third unwinding and rewinding device. A steel coil 20 is wound on this unwinding and rewinding device. The two layers of filter paper are a polyester fiber filter paper strip 19 and a glass fiber filter paper strip 21 respectively. The polyester fiber filter paper strip 19, the steel coil 20, and the glass fiber filter paper strip 21 are distributed from top to bottom in sequence. A circular hole is provided in the middle of the steel coil 20 for the movement of the negative pressure component below.

[0053] A tensioning component 22, a deviation rectifying component 23, and a limiting component 24 are installed inside the mounting bracket 9. The tensioning component 22 is used to tension the polyester fiber filter paper strip 19, the steel coil 20, and the glass fiber filter paper strip 21. The deviation rectifying component 23 is used to align the polyester fiber filter paper strip 19 and the glass fiber filter paper strip 21. The limiting component 24 is used to adjust the position of the middle part of the steel coil 20.

[0054] The unwinding and rewinding device, the tensioning component 22, the deviation rectifying component 23, and the limiting component 24 all adopt existing technologies. The three sets of unwinding and rewinding devices are used to convey the polyester fiber filter paper strip 19, the steel coil 20, and the glass fiber filter paper strip 21. The polyester fiber filter paper strip 19 and the glass fiber filter paper strip 21 respectively abut against both sides of the steel coil 20, which is convenient for subsequent cutting to form a protective effect through the steel coil 20.

[0055] The tensioning component 22 is used to ensure that the polyester fiber filter paper strip 19, the steel coil 20, and the glass fiber filter paper strip 21 are in a tensioned and straight state, which is convenient for improving the accuracy during subsequent cutting.

[0056] The deviation rectifying component 23 is used to align the polyester fiber filter paper strip 19 and the glass fiber filter paper strip 21, further improving the accuracy when the two are cut.

[0057] The limiting component 24 is used to adjust the up and down position of the middle part of the steel coil 20, separating the steel coil 20 from the polyester fiber filter paper strip 19 and the glass fiber filter paper strip 21 to make space, which is convenient for subsequent gluing and pressing operations on the cut parts of the polyester fiber filter paper strip 19 and the glass fiber filter paper strip 21.

[0058] A first electric telescopic rod 18 is installed at the inner top of the mounting bracket 9, and a second electric telescopic rod 29 is installed at the inner bottom. The output end of the first electric telescopic rod 18 is magnetically connected to the upper negative pressure component, and the output end of the second electric telescopic rod 29 is fixedly connected to the lower negative pressure component.

[0059] The negative pressure component above includes a first mounting housing 25 and a second mounting housing 26 fixedly connected to each other. A plurality of first electromagnets 43 are mounted on the inner top of the first mounting housing 25, and a plurality of second electromagnets 45 are mounted on the inner bottom of the second mounting housing 26. The output ends of the plurality of first electric telescopic rods 18 are magnetically engaged with the plurality of first electromagnets 43 one by one. A second blower 38 is mounted on the inner top of the second mounting housing 26. The filter screen 34 abuts against the bottom of the second mounting housing 26 and is magnetically engaged with the plurality of second electromagnets 45. The gluing device is connected between the first mounting housing 25 and the second mounting housing 26.

[0060] The negative pressure component below includes a third mounting housing 27 fixedly connected to the second electric telescopic rod 29. A first blower 28 is mounted on the inner bottom of the third mounting housing 27.

[0061] Both opposite sides of the second mounting housing 26 and the third mounting housing 27 are of a porous structure. The interior of the second mounting housing 26 is a heating chamber 44, and the interior of the third mounting housing 27 is a dust collection chamber 48.

[0062] Both opposite sides of the second mounting housing 26 and the third mounting housing 27 are provided with annular grooves. Electric push rods are installed inside the annular grooves. The output end of the upper electric push rod is fixedly connected to a first annular cutter 46, and the output end of the lower electric push rod is fixedly connected to a second annular cutter 49. Heating blocks 47 are installed on both the first annular cutter 46 and the second annular cutter 49. The first annular cutter 46 and the second annular cutter 49 are coaxially arranged, and the diameter of the first annular cutter 46 is larger than that of the second annular cutter 49.

[0063] The heating block 47 adopts the prior art and is used to heat the first annular cutter 46 and the second annular cutter 49, facilitating the hot cutting operation of the two on the filter paper, reducing the generation of debris, and improving the cutting quality.

[0064] The inner side of the upper annular groove is communicated with a communication groove, and one end of the communication groove far from the annular groove is communicated with the interior of the heating chamber 44.

[0065] Through the communication groove, it is convenient to guide the heat generated by the heating block 47 into the heating chamber 44, thus facilitating the subsequent hot air treatment of the bonded filter element.

[0066] Refer to Figures 6-9, the glue application device includes a second motor 39 installed inside the first installation housing 25. The output end of the second motor 39 is coaxially and fixedly connected with a gear 40. The gear 40 meshes with an internal gear ring 41. The bottom of the internal gear ring 41 is coaxially and fixedly connected with a rotating ring 42. The rotating ring 42 is rotatably connected between the first installation housing 25 and the second installation housing 26. Two electric telescopic rod groups 30 are installed at the bottom of the rotating ring 42. Between the top of one electric telescopic rod group 30 and the rotating ring 42, there is a fixed connection with a spring, and the output end is fixedly connected with a fixed rod 31. One end of the fixed rod 31 away from the electric telescopic rod group 30 is rotatably connected to a first rubber head 32. The first rubber head 32 is connected to a water delivery pipe 33 through a rotating joint.

[0067] The rotating joint adopts the existing technology and is used to maintain communication while rotating.

[0068] The top of the other electric telescopic rod group 30 is fixedly connected to the rotating ring 42, and the output end is fixedly connected with a brush head 35 and a connecting frame. The brush head 35 is connected to a glue delivery pipe 36. The connecting frame includes a first connecting rod fixedly connected to the output end of the electric telescopic rod group 30. At one end of the first connecting rod away from the electric telescopic rod group 30, there is a small motor installed. The output end of the small motor is fixedly connected with a second connecting rod. At one end of the second connecting rod away from the small motor, there is a rotatable connection with a second rubber head 37.

[0069] The two electric telescopic rod groups 30 are distributed on both sides of the rotating ring 42 and are both used to drive their output ends to move along the vertical plane.

[0070] The electric telescopic rod group 30 includes a third electric telescopic rod in the vertical state and a fourth electric telescopic rod in the horizontal state. Among the two third electric telescopic rods, one is directly installed, and the other is installed at the bottom of the rotating ring 42 through a spring. The fourth electric telescopic rod is installed on the output end of the third electric telescopic rod. Among the output ends of the two fourth electric telescopic rods, one is rotatably connected to the first rubber head 32 through the fixed rod 31, and the other is fixedly connected with the brush head 35 and the connecting frame.

[0071] The diameter of the first rubber head 32 is smaller than that of the second rubber head 37. The edge of the filter screen 34 is wavy and is fixedly connected with a rubber strip.

[0072] The rubber strip is used to improve the subsequent bonding effect.

[0073] A replacement mechanism. The replacement mechanism is connected inside the fixed housing 6, and its output end is connected with a first filter cartridge 15. The filter element is magnetically matched with the first filter cartridge 15 to form a new filtering structure.

[0074] Refer to Figure 3 and Figure 4, the replacement mechanism includes a telescopic plate 16 fixedly connected to the inner wall of the fixed housing 6. A clamping assembly is installed at the output end of the telescopic plate 16, and the clamping assembly is in clamping cooperation with the first mounting housing 25.

[0075] Both the telescopic plate 16 and the clamping assembly adopt existing technologies. The clamping assembly is used to clamp the first mounting housing 25, and the telescopic plate 16 is used to drive the first mounting housing 25 to move through the clamping assembly, thereby driving the new filter element on it to move.

[0076] The replacement mechanism further includes two mounting plates 10 fixedly connected to the inner bottom of the fixed housing 6. A lead screw 12 is rotatably connected between the two mounting plates 10, and a limiting rod 13 is fixedly connected. A first motor 11 is installed on one mounting plate 10. The output end of the first motor 11 penetrates through the mounting plate 10 and is coaxially and fixedly connected to the lead screw 12. Both the first filter cartridge 15 and the second filter cartridge 17 are threadedly connected to the lead screw 12 through sliders and slidably connected to the limiting rod 13.

[0077] When in use of the present invention, cutting fluid is introduced into a plurality of hydrocyclones 3 at a certain speed through the water inlet 4. When the cutting fluid enters the hydrocyclone 3 tangentially at a certain speed, the impurity particles with a larger density will slide down along the wall of the device and finally be discharged into the recovery tank 1, while the cutting fluid with a smaller density flows out from the overflow pipe 5, realizing the separation of impurities and cutting fluid, completing the pretreatment of the cutting fluid, and removing most of the solid particles.

[0078] When the cutting fluid enters the inside of the annular pipe 8 from the overflow pipe 5, due to the large kinetic energy during the vertical fall, the introduced water flow is made to flow horizontally for a certain distance through the annular pipe 8, and the friction between the water flow and the pipe wall surface, air, etc., as well as the resistance inside the water flow, are utilized to reduce the speed of the water flow and the impact force on the filtering structure.

[0079] In order to buffer the impact force of the water flow, when making a new filter element, the filter paper is pasted together with the filter mesh 34 to improve the firmness of the filter paper pasting and increase the buffering capacity of the entire filtering structure. Here, polyurethane adhesive is selected for adhesion. Due to its unique molecular structure and properties, polyurethane adhesive has both high-strength bonding and buffering and shock-absorbing capabilities. However, if bonded in advance, the polyurethane adhesive is prone to aging over a long time and cannot keep its bonding strength and elasticity in the best state.

[0080] Therefore, when the external detection device detects that the filtering effect begins to decline, a new filtering structure is started to be made. The filtering structure consists of a filter element and a filter cartridge.

[0081] The filter element is composed of a filter screen 34, polyester fiber filter strips 19 and glass fiber filter strips 21 bonded together. The top filter screen 34 is magnetic and can adsorb metal impurity particles in the cutting fluid. The adsorbed metal impurities can be recycled and reused, and it can also prevent the polyester fiber filter strips 19 and glass fiber filter strips 21 from being impacted by metal particles.

[0082] The filter screen 34 is wavy, which increases the effective filtration area, can also disperse the fluid impact force, withstand higher pressure, and prevent the high-speed fluid from directly impacting the filter paper below it.

[0083] Below the filter screen 34 is the polyester fiber filter strip 19. The polyester fiber filter strip 19 has high mechanical strength and can intercept larger particles first, avoiding damage to the glass fiber filter strip 21 below due to the impact of large particles. The glass fiber filter strip 21 mainly intercepts micron-sized particles to improve the filtration accuracy.

[0084] Before starting to make the filter element, the polyester fiber filter strips 19 and glass fiber filter strips 21 are kept in a tensioned state through the tensioning component 22, and the edges of the polyester fiber filter strips 19 and glass fiber filter strips 21 are aligned through the deviation correction component 23.

[0085] There is a steel coil 20 between the polyester fiber filter strips 19 and the glass fiber filter strips 21 for protection to avoid damage during subsequent cutting.

[0086] After the polyester fiber filter strips 19, the steel coil 20 and the glass fiber filter strips 21 are stable, the production of the filter element begins.

[0087] First, perform the hot cutting operation on the filter paper. The output end of the first electric telescopic rod 18 extends. Through the magnetic connection with the first electromagnet 43, it drives the first mounting housing 25 and the second mounting housing 26 to move downward. The output end of the second electric telescopic rod 29 extends, driving the third mounting housing 27 to move upward, so that the second mounting housing 26 and the third mounting housing 27 are abutted against the polyester fiber filter strips 19, the steel coil 20 and the glass fiber filter strips 21.

[0088] The output end of the electric push rod in the annular groove extends, pushing the first annular cutter 46 and the second annular cutter 49 to extend. The first annular cutter 46 cooperates with the steel coil 20 to cut the polyester fiber filter strips 19, and the second annular cutter 49 cooperates with the steel coil 20 to cut the glass fiber filter strips 21.

[0089] During the cutting process, the heating block 47 works to increase the temperature of the annular cutter. The polyester fiber filter strips 19 and the glass fiber filter strips 21 are more easily cut cleanly rather than brittlely fractured after being heated. When cutting with a hot knife, it can also melt the edges to form a sealing effect, significantly reducing the burr problem and improving the quality of the cut filter paper pieces.

[0090] The diameter of the first annular cutter 46 is larger than that of the second annular cutter 49, such that the diameter of the cut polyester fiber filter paper is larger than that of the glass fiber filter paper. This is because if the two filter papers have the same size, during the positioning process, even with a slight deviation, their edges may not be fully aligned. Increasing the tolerance for alignment, and at the same time, since the polyurethane adhesive may have a certain diffusion phenomenon after being applied, the larger-diameter polyester fiber filter paper can accommodate the diffusion of the adhesive, ensuring the uniformity and stability of the adhesion effect.

[0091] Then, perform the negative pressure adsorption and fixation operation. The first fan 28 and the second fan 38 operate. The first fan 28 extracts the air inside the dust collection chamber 48, creating a negative pressure environment inside the dust collection chamber 48. Through the porous structure on the third installation housing 27, negative pressure adsorption and fixation are performed on the glass fiber filter paper. The second fan 38 extracts the air inside the heating chamber 44, creating a negative pressure environment inside the heating chamber 44. Through the porous structure on the second installation housing 26, negative pressure adsorption and fixation are performed on the polyester fiber filter paper.

[0092] In addition, since the glass fiber filter strip 21 is formed by randomly interweaving a large number of glass fibers, a small amount of debris will still be generated during the hot cutting operation. Due to negative pressure and gravity, the debris falls into the dust collection chamber 48, reducing the risk of debris flying and contaminating the operating environment.

[0093] Next, perform the first glue application preparation operation. The steel coil 20 is wound by the unwinding and winding device, so that the round hole on the steel coil 20 moves between the second installation housing 26 and the third installation housing 27. The second electric telescopic rod 29 is started to drive the third installation housing 27 to move upward, so that the glass fiber filter paper fixed by negative pressure adsorption moves upward through the round hole.

[0094] Subsequently, perform the first glue application operation. The position of the brush head 35 in the vertical plane is adjusted by the electric telescopic rod group 30, so that the brush head 35 abuts against the upper surface edge of the glass fiber filter paper. The second motor 39 is started, and its output end drives the rotating ring 42 to rotate through the gear 40 and the internal gear ring 41. Then, the brush head 35 is driven to rotate by the electric telescopic rod group 30, and the glue delivery pipe 36 delivers glue to start applying the adhesive to the upper surface edge of the glass fiber filter paper. At this time, the second rubber head 37 is controlled to be in the raised state and does not contact the glass fiber filter paper.

[0095] After the adhesive is applied to the glass fiber filter paper, perform the first pressing operation. The first electric telescopic rod 18 is started to drive the second installation housing 26 to move downward, so that the lower surface of the polyester fiber filter paper is pressed and bonded together with the glass fiber filter paper.

[0096] Then, perform the secondary gluing preparation operation. Close the second blower 38. The two layers of glued filter paper will be adsorbed together by negative pressure on the lower third mounting housing 27. At this time, raise the second mounting housing 26 through the first electric telescopic rod 18.

[0097] Subsequently, perform the secondary gluing operation. Adjust the position of the brush head 35 through the electric telescopic rod group 30, and then drive the rotating ring 42 to rotate through the second motor 39 to apply glue to the upper surface edge of the polyester fiber filter paper sheet.

[0098] Before the secondary gluing operation, the small motor works. Its output end drives the second connecting rod to rotate downward, driving the second rubber head 37 to abut against the upper surface edge of the polyester fiber filter paper sheet. The second rubber head 37 is located in front of the brush head 35. Before the brush head 35 performs secondary gluing, the output end of the small motor rotates back and forth at a small angle, causing the second rubber head 37 to intermittently squeeze the upper surface edge of the polyester fiber filter paper sheet, which helps to distort the edge of the polyester fiber filter paper sheet, facilitating its fitting with the wavy contour of the subsequent filter screen 34 and reducing the gap between the subsequent filter screen 34 and the polyester fiber filter paper sheet during gluing.

[0099] After the adhesive is applied to the polyester fiber filter paper sheet, perform the secondary pressing operation. Then start the first electric telescopic rod 18 to press the filter screen 34 against the polyester fiber filter paper strip 19 and squeeze and bond the two together.

[0100] Subsequently, perform the third pressing operation. Close the lower first blower 28. After waiting for a period of time, start the first electric telescopic rod 18 to lift the bonded filter screen 34 and two filter papers together. At this time, retract the brush head 35 through the electric telescopic rod group 30. At the same time, adjust another electric telescopic rod group 30. Under the elastic force of the spring, make the first rubber head 32 abut against the lower surface edge of the polyester fiber filter paper sheet and abut it against the filter screen 34. Then start the second motor 39 to drive the first rubber head 32 to rotate. Since the diameter of the polyester fiber filter paper sheet is larger than that of the glass fiber filter paper sheet, its deformation ability is stronger and its elasticity is better. Therefore, the rubber strip on the filter screen 34 is mainly bonded to the edge of the polyester fiber filter paper strip 19.

[0101] When the relatively small first rubber head 32 moves, the water delivery pipe 33 delivers water. Along the edge of the polyester fiber filter paper sheet, it wets and rotates and presses while moving. The relatively small contact surface can accurately press the uneven parts of the edge, preventing the glue from being squeezed out. This makes the polyester fiber filter paper sheet fit better with the rubber strip on the filter screen 34. The curved structure after the edge deformation can disperse the stress to multiple wave peaks or wave valleys, avoiding excessive single-point stress, increasing the bonding area between the polyester fiber filter paper sheet and the edge of the filter screen 34, and improving the firmness.

[0102] During the whole production process, there is only up and down movement to ensure that the center positions of the filter screen 34, the polyester fiber filter paper sheet, and the glass fiber filter paper sheet remain unchanged, reducing the deviation error.

[0103] After bonding, start the heating block 47 and the first blower 28 inside, so that the hot air passes through the bonded filter screen 34, polyester fiber filter paper and glass fiber filter paper from top to bottom to cure the polyurethane adhesive, and complete the production of the filter element.

[0104] Finally, perform the replacement operation of the filter structure. First, stop the filter, disconnect the first electromagnet 43, and release the magnetic connection between the first electric telescopic rod 18 and the first installation housing 25.

[0105] Subsequently, control the telescopic plate 16 to extend. The telescopic plate 16 clamps the first installation housing 25 through the clamping assembly, moves the produced filter element above the first filter cylinder 15, and then closes the second electromagnet 45 to release the magnetic connection between the second electromagnet 45 and the filter screen 34. The filter element falls into the first filter cylinder 15 and is magnetically adsorbed by the third electromagnet inside the first filter cylinder 15 to form a filter structure.

[0106] Then open the clamping device 14 to release the fixation of the second filter cylinder 17, start the first motor 11, and its output end drives the first filter cylinder 15 and the second filter cylinder 17 to move simultaneously through the lead screw 12 and the slider. The first filter cylinder 15 replaces the second filter cylinder 17 and the filter element inside it with a new filter element. Subsequently, start the clamping device 14 to clamp and fix the first filter cylinder 15, so that the first filter cylinder 15 is communicated with the water outlet pipe 7, complete the replacement of the filter structure, and then start the machine to continue filtering.

[0107] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. An efficient filter, comprising a recovery pool (1), wherein a pretreatment device is connected inside the recovery pool (1), and is characterized in that, It further includes: A fixed housing (6) fixedly connected inside the recovery tank (1); A filtering mechanism connected inside the fixed housing (6), with its input end communicating with the output end of the pretreatment device. The filtering mechanism includes a replaceable filtering structure; A manufacturing mechanism. The manufacturing mechanism includes a mounting rack (9) fixedly connected inside the fixed housing (6). There are two sets of unwinding and rewinding devices inside the mounting rack (9). Filter paper is wound on the unwinding and rewinding devices. Two liftable negative pressure components are connected inside the mounting rack (9). The opposite sides of the two negative pressure components face two layers of filter paper, and both are connected with retractable cutting components. A filter screen (34) and a glue application device are connected to the bottom of the upper negative pressure component. The glue application device bonds the filter screen (34) and the two layers of filter paper through glue application. After the filter screen (34) and the two layers of filter paper are bonded, they form a filter element; A replacement mechanism connected inside the fixed housing (6), and its output end is connected to a first filter cartridge (15). The filter element is magnetically matched with the first filter cartridge (15) to form a new filtering structure.

2. The high-efficiency filter according to claim 1, wherein The pretreatment device includes a plurality of hydrocyclones (3) arranged inside the recovery tank (1). The input ends of the plurality of hydrocyclones (3) are all communicated with the same water inlet (4), the tops are communicated with an overflow pipe (5), and the bottoms are all communicated with the inside of the recovery tank (1). One ends of the plurality of overflow pipes (5) far from the hydrocyclones (3) are all communicated with the input end of the filtering mechanism. A discharge port (2) is provided at the bottom of the recovery tank (1).

3. The high-efficiency filter according to claim 2, characterized in that, The filtering mechanism includes an annular pipe (8) fixedly connected to the inner top of the fixed housing (6). One ends of the plurality of overflow pipes (5) far from the hydrocyclones (3) all hermetically penetrate the top wall of the fixed housing (6) and are all communicated with the annular pipe (8). A water outlet pipe (7) is communicated in the middle of the annular pipe (8). The water outlet pipe (7) is in an L shape, and the end far from the annular pipe (8) hermetically penetrates the fixed housing (6) and the recovery tank (1). The filtering structure includes a second filter cartridge (17) and a filter element connected inside the second filter cartridge (17). The vertical section of the water outlet pipe (7) is truncated to form an upstream pipe section and a downstream pipe section, and the two are communicated through the second filter cartridge (17). The second filter cartridge (17) is hermetically and slidably matched with the upstream pipe section and the downstream pipe section. A clamping device (14) is installed on the upstream pipe section, and the clamping device (14) is clamped and matched with the second filter cartridge (17).

4. The high-efficiency filter according to claim 1, wherein There is also a third set of unwinding and rewinding device inside the mounting rack (9). A steel coil (20) is wound on this unwinding and rewinding device. The two layers of filter paper are respectively a polyester fiber filter paper strip (19) and a glass fiber filter paper strip (21). The polyester fiber filter paper strip (19), the steel coil (20), and the glass fiber filter paper strip (21) are distributed from top to bottom in sequence. A circular hole for the movement of the lower negative pressure component is provided in the middle of the steel coil (20).

5. The high-efficiency filter according to claim 4, wherein Inside the mounting bracket (9), a tensioning assembly (22), a deviation rectifying assembly (23), and a limiting assembly (24) are installed. The tensioning assembly (22) is used to tension the polyester fiber filter strip (19), the steel coil (20), and the fiberglass filter strip (21). The deviation rectifying assembly (23) is used to align the polyester fiber filter strip (19) and the fiberglass filter strip (21). The limiting assembly (24) is used to adjust the position of the middle part of the steel coil (20).

6. The high-efficiency filter according to claim 3, characterized in that, A first electric telescopic rod (18) is installed on the inner top of the mounting bracket (9), and a second electric telescopic rod (29) is installed on the inner bottom. The output end of the first electric telescopic rod (18) is magnetically connected to the negative pressure assembly above, and the output end of the second electric telescopic rod (29) is fixedly connected to the negative pressure assembly below.

7. The high-efficiency filter according to claim 6, wherein, The negative pressure assembly above includes a first mounting housing (25) and a second mounting housing (26) fixedly connected to each other. A plurality of first electromagnets (43) are installed on the inner top of the first mounting housing (25), and a plurality of second electromagnets (45) are installed on the inner bottom of the second mounting housing (26). The output ends of the plurality of first electric telescopic rods (18) are magnetically matched with the plurality of first electromagnets (43) one by one. A second blower (38) is installed on the inner top of the second mounting housing (26). The filter screen (34) abuts against the bottom of the second mounting housing (26) and is magnetically matched with the plurality of second electromagnets (45). The gluing device is connected between the first mounting housing (25) and the second mounting housing (26); The negative pressure assembly below includes a third mounting housing (27) fixedly connected to the second electric telescopic rod (29). A first blower (28) is installed on the inner bottom of the third mounting housing (27); Both the opposite sides of the second mounting housing (26) and the third mounting housing (27) are of a porous structure. The inside of the second mounting housing (26) is a heating chamber (44), and the inside of the third mounting housing (27) is a dust collection chamber (48).

8. The high-efficiency filter according to claim 7, characterized in that, Both the opposite sides of the second mounting housing (26) and the third mounting housing (27) are provided with annular grooves. Electric push rods are installed inside the annular grooves. The output end of the electric push rod above is fixedly connected to a first annular cutter (46), and the output end of the electric push rod below is fixedly connected to a second annular cutter (49). Heating blocks (47) are installed on both the first annular cutter (46) and the second annular cutter (49). The first annular cutter (46) and the second annular cutter (49) are coaxially arranged, and the diameter of the first annular cutter (46) is larger than the diameter of the second annular cutter (49); A communication groove is communicated with the inner side of the annular groove above. One end of the communication groove away from the annular groove is communicated with the inside of the heating chamber (44).

9. The high-efficiency filter according to claim 8, wherein The gluing device includes a second motor (39) installed inside the first installation housing (25). The output end of the second motor (39) is coaxially and fixedly connected with a gear (40). The gear (40) meshes with an internal gear ring (41). The bottom of the internal gear ring (41) is coaxially and fixedly connected with a rotating ring (42). The rotating ring (42) is rotatably connected between the first installation housing (25) and the second installation housing (26). Two electric telescopic rod groups (30) are installed at the bottom of the rotating ring (42). A spring is fixedly connected between the top of one electric telescopic rod group (30) and the rotating ring (42), and the output end is fixedly connected with a fixed rod (31). One end of the fixed rod (31) away from the electric telescopic rod group (30) is rotatably connected with a first rubber head (32). The first rubber head (32) is connected to a water delivery pipe (33) through a rotating joint. The top of the other electric telescopic rod group (30) is fixedly connected with the rotating ring (42), and the output end is fixedly connected with a brush head (35) and a connecting frame. The brush head (35) is connected to a glue delivery pipe (36). The connecting frame includes a first connecting rod fixedly connected to the output end of the electric telescopic rod group (30). A small motor is installed at one end of the first connecting rod away from the electric telescopic rod group (30). The output end of the small motor is fixedly connected with a second connecting rod. One end of the second connecting rod away from the small motor is rotatably connected with a second rubber head (37). The two electric telescopic rod groups (30) are distributed on both sides of the rotating ring (42) and are both used to drive their output ends to move along the vertical plane. The diameter of the first rubber head (32) is smaller than that of the second rubber head (37). The edge of the filter screen (34) is wavy and fixedly connected with a rubber strip.

10. The high-efficiency filter according to claim 7, characterized in that, The replacement mechanism includes a telescopic plate (16) fixedly connected to the inner wall of the fixed housing (6). The output end of the telescopic plate (16) is provided with a clamping component, and the clamping component is in clamping cooperation with the first installation housing (25). The replacement mechanism also includes two mounting plates (10) fixedly connected to the inner bottom of the fixed housing (6). A lead screw (12) is rotatably connected between the two mounting plates (10), and a limiting rod (13) is fixedly connected. A first motor (11) is installed on one mounting plate (10). The output end of the first motor (11) penetrates through the mounting plate (10) and is coaxially and fixedly connected with the lead screw (12). The first filter cartridge (15) and the second filter cartridge (17) are both threadedly connected to the lead screw (12) through sliders and slidably connected to the limiting rod (13).

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