Integrated filtration system and 3D printer

Abstract

The application discloses an integrated filtering system and a 3D printer, and relates to the technical field of 3D printing waste gas treatment. The system comprises symmetrically arranged integrated filtering cartridges, a double filtering frame and a dust collecting box. The U-shaped pipe is connected to the air outlet of the printing chamber. After the waste gas is preliminarily separated from large particles by inertia deposition, fine filtration is realized by the second filtering screen. The mechanical linkage driving assembly is innovatively adopted. The opening and closing of the side cover synchronously triggers the rotation switching of the filtering frame, the avoidance of the sealing plate and the horizontal positioning of the filter screen support. When single-side maintenance is performed, the standby channel is automatically enabled, and the continuous operation of the printing process is ensured. The negative pressure suction of the dust collecting box and the reverse airflow of the exhaust fan are controlled by the electromagnetic valve. The dust attached to the surface of the filter screen is effectively removed, and the service life of the filter screen is prolonged. The system reduces the single-side load through the alternate operation of the double channels, and solves the technical problems of the low maintenance efficiency, frequent filter screen blockage, complex manual operation and high energy consumption of the traditional filtering system.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing waste gas treatment, and in particular to an integrated filtration system and a 3D printer. Background Art

[0002] Currently, 3D printing technology is widely used in the field of high-precision manufacturing, but the exhaust gas generated during the printing process contains pollutants such as uncured resin particles, pyrolysis volatiles and support material debris.

[0003] Existing 3D printer filtration systems mostly use a single filtration channel, requiring shutdown to clean the filter, resulting in interruptions in printing operations and low efficiency. Furthermore, the filter in traditional filtration systems lacks a self-cleaning mechanism and is easily clogged by dust, requiring frequent replacement. Maintenance requires disassembly of multiple components, which is cumbersome and seriously restricts continuous printing efficiency.

[0004] Therefore, the present invention provides an integrated filtration system and a 3D printer to solve one or more of the above problems. Summary of the Invention

[0005] The object of the present invention is to provide an integrated filtration system and a 3D printer to solve one or more problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: comprising: an integrated filter cartridge, a dust collecting box and an air guide chamber are installed on the top of the integrated filter cartridge, a filter frame is installed in the integrated filter cartridge, a U-shaped tube is installed at the bottom of the integrated filter cartridge, and one end of the connecting tube is connected to the U-shaped tube, and the other end of the connecting tube is connected to the air outlet of the 3D printer, two sets of side covers are symmetrically installed on both sides of the integrated filter cartridge, and the side covers are linked to the filter frame in the integrated filter cartridge through a driving assembly.

[0007] Preferably, the dust collecting box is provided in two groups, and the two groups of dust collecting boxes are symmetrically arranged on both sides of the air guide bin. One side of each group of dust collecting boxes is connected to the integrated filter cartridge through connecting pipe 2, and the other side of each group of dust collecting boxes is connected to the air guide bin through connecting pipe 3. The air guide bin is connected to the integrated filter cartridge, and a discharge port is provided on the top of the air guide bin.

[0008] Preferably, a three-way valve is installed at the connection between connecting pipe 1 and the U-shaped pipe, a cover is provided on the top of the dust collecting box, an exhaust fan is installed in the air guide bin, a solenoid valve is installed on each set of connecting pipes 3, and several sets of filter screens 1 are installed in connecting pipes 3.

[0009] Preferably, the filter frames are arranged in two groups, and each group of filter frames is connected to the side cover through a group of drive components, the two groups of partition plates are fixed on the inner wall of the integrated filter cartridge, and the two groups of partition plates are rotationally symmetrical around the vertical center axis of the integrated filter cartridge.

[0010] Preferably, the drive motor is fixedly arranged in the middle of the inner wall of the integrated filter cartridge, and the drive gear 2 is fixedly sleeved on the output shaft of the drive motor, the drive gear 1 is engaged with the drive gear 2, and the drive gear 1 is fixedly sleeved on the outer wall of the drive connecting rod, and the airflow control plate is fixedly sleeved at both ends of the drive connecting rod, and the airflow control plate is attached to the partition plate and movably connected to the inner wall of the integrated filter cartridge.

[0011] Preferably, a second ventilation hole is provided on the partition plate, and a first ventilation hole is provided on the airflow control plate, and the aperture of the second ventilation hole is the same as that of the first ventilation hole.

[0012] Preferably, the driving assembly includes: a positioning frame, the positioning frame is fixedly arranged on the top outer wall of the integrated filter cartridge, the driving rod 1 is rotatably connected to the positioning frame, the side of the side cover close to the positioning frame is connected to the driving rod 1 through two groups of annular connectors, a torsion spring is installed between the two groups of annular connectors, the filter bracket is rotatably connected to the inner wall of the integrated filter cartridge, a plurality of groups of filter slots are provided in the filter bracket, and a filter 2 is movably installed in each group of filter slots, the sealing plate is movably installed on the top of the filter bracket, and an L-shaped avoidance groove is provided in the filter bracket.

[0013] Preferably, two groups of support frames 1 and two groups of support frames 2 are symmetrically fixed on the outer walls of the front and rear sides of the integrated filter cartridge, and both ends of the drive rod 1 are rotatably connected to the two groups of support frames 2. The same drive rod 2 is rotatably installed on each group of support frames 1, and the outer wall of the drive rod 2 is fixedly sleeved with a drive wheel 4. The end of the drive rod 2 away from the support frame 1 is movably extended to the horizontal section of the L-shaped avoidance groove and is fixedly sleeved with a bevel gear 2. The drive rod 4 is movably installed in the vertical section of the L-shaped avoidance groove, and one end of the drive rod 4 is fixedly connected to the sealing plate, and the other end of the drive rod 4 is fixedly sleeved with a bevel gear 1, which meshes with the bevel gear 2. The two groups of drive rods 3 are symmetrically installed on the outer walls of the front and rear sides of the integrated filter cartridge, and one end of each group of drive rods 3 is fixedly sleeved with a drive wheel 3, and the other end of the drive rod 3 is fixedly connected to the outer wall of the filter bracket.

[0014] Preferably, two groups of driving wheels 1 are symmetrically fixedly sleeved on the outer wall of the driving rod 1, and each group of driving wheels 1 is connected to the driving wheel 3 on the same side through a driving belt 2, and the driving wheel 2 is movably mounted on one group of support frames 2, and one end of the driving rod 1 is movably extended into the driving wheel 2, and a push plate is fixed on the outer wall of the end of the driving rod 1 extending into the driving wheel 2, and a driving baffle is installed in the driving wheel 2. The driving rod 1 drives the driving wheel 2 to rotate intermittently through the cooperation of the push plate and the driving baffle, and the driving wheel 2 and the driving wheel 4 are connected through a driving belt 1.

[0015] A 3D printer for filtering by the integrated filtering system, comprising a printer body, a printing chamber top of the printer body is provided with an air outlet, the air outlet is sealedly connected with a U-shaped pipe of an integrated filter cartridge through a connecting pipe, a control unit is arranged in the printer body, the control unit is electrically connected with a driving motor, an exhaust fan and an electromagnetic valve, and the control unit is configured to synchronously control the switching action of a filter frame of the driving assembly and the start-stop timing of the exhaust fan according to the printing working condition.

[0016] Compared with the prior art, the 3D printer has the beneficial effects that:

[0017] The 3D printer filtering system has the non-stop maintenance function through the double-channel redundant design and the mechanical linkage automation structure, and the operator only needs to open and close the side cover once to synchronously complete the filtering path switching, the maintenance window opening and the filter screen support positioning, so that the operation process is obviously simplified. The dust collection box negative pressure suction controlled by the electromagnetic valve and the reverse air flow self-cleaning technology of the exhaust fan effectively separate the light waste and remove the attachments on the surface of the filter screen, so that the service life of the filter screen is improved by more than 30%. The system reduces the unilateral filter screen load through the double-channel alternate operation mechanism, cooperates with the intelligent wind speed adjustment and the modularized repeated cleaning design, guarantees the continuous cleanliness of the printing chamber, and obviously improves the equipment operation economy. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of the present application;

[0019] Figure 2 It is a cross-sectional structural schematic diagram of the present application Figure 1 ;

[0020] Figure 3 It is a cross-sectional structural schematic diagram of the present application Figure 2 ;

[0021] Figure 4 It is a driving assembly structural schematic diagram in the present application Figure 1 ;

[0022] Figure 2 It is a driving assembly structural schematic diagram in the present application Figure 6 ;

[0023] Figure 3 It is a driving assembly structural schematic diagram in the present application Figure 7 ;

[0024] Figure 6 It is an enlarged schematic diagram of structure A in the present application Figures 1-2 .

[0025] Figure: 1, integrated filter cartridge; 2, three-way valve; 3, connecting pipe one; 4, U-shaped pipe; 5, side cover; 6, drive assembly; 7, filter frame; 8, dust collection box; 9, air guide warehouse; 10, exhaust fan; 11, connecting pipe two; 12, electromagnetic valve; 13, connecting pipe three; 14, drive motor; 15, drive connecting rod; 16, drive gear one; 17, drive gear two; 18, air flow control plate; 19, ventilation hole one; 20, partition plate; 21, ventilation hole two; 22, filter screen one; 23, cover plate; 24, support frame one; 25, support frame two; 26, positioning frame; 27, ring-shaped connecting piece; 28, drive rod one; 29, drive wheel one; 30, drive wheel two; 31, torsional spring; 32, drive belt one; 33, drive belt two; 34, drive rod two; 35, drive rod three; 36, filter screen support; 37, filter screen slot; 38, filter screen two; 39, sealing plate; 40, drive rod four; 41, bevel gear one; 42, bevel gear two; 43, drive wheel three; 44, drive wheel four; 45, drive baffle; 46, push plate; 47, L-shaped avoidance slot. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0027] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] Example 1

[0030] Please refer to Figures 1-3 The application provides a technical solution, which comprises: an integrated filter cartridge 1, a dust collection box 8 and a gas guide warehouse 9 are installed on the top of the integrated filter cartridge 1, a filter frame 7 is installed in the integrated filter cartridge 1, a U-shaped pipe 4 is installed at the bottom of the integrated filter cartridge 1, one end of a connecting pipe 1 is connected with the U-shaped pipe 4, the other end of the connecting pipe 1 is connected with the air outlet of a 3D printer, two groups of side covers 5 are symmetrically installed on the two sides of the integrated filter cartridge 1, and the side covers 5 are connected with the filter frame 7 in the integrated filter cartridge 1 through a driving assembly 6.

[0031] Preferably, the dust collection box 8 is provided in two groups, and the two groups of dust collection boxes 8 are symmetrically arranged on the two sides of the gas guide warehouse 9. One side of each group of dust collection boxes 8 is connected with the integrated filter cartridge 1 through a connecting pipe 2, and the other side of each group of dust collection boxes 8 is connected with the gas guide warehouse 9 through a connecting pipe 3. The gas guide warehouse 9 is connected with the integrated filter cartridge 1, and a discharge port is formed in the top of the gas guide warehouse 9.

[0032] The working principle and beneficial effects of the above technical solution are as follows: when the 3D printer is running, the dust-containing waste gas generated in the printing chamber can be introduced into the left or right integrated filter cartridge 1 through the connecting pipe 1, the U-shaped pipe 4 and the three-way valve 2, and then flows upwards and is finely filtered by the filter screen 2 in the filter frame 7 arranged symmetrically on the two sides. The clean gas after filtration is discharged through the discharge port in the top of the gas guide warehouse 9, and the intercepted dust accumulates on the surface of the filter screen 2 and at the bottom of the integrated filter cartridge 1. When the filter frame 7 on one side needs to be cleaned, the driving assembly 6 drives the filter frame 7 to rotate and switch through the linkage of the side cover 5, and controls the waste gas to be automatically switched to the filter path on the other side, so that uninterrupted filtration is realized. Through the symmetrical arrangement of the double filter frames 7 and the dust collection boxes 8, online switching and maintenance are supported, the printing continuity is not affected by the shutdown, and through the mechanical linkage of the side cover 5 and the filter frame 7, the manual operation process is simplified, and the synchronization control of the filter path switching and the opening of the maintenance window is realized through a single action.

[0033] Embodiment 2

[0034] On the basis of embodiment 1, please refer to Figure 2 A three-way valve 2 is installed at the connection between the connecting pipe 1 and the U-shaped pipe 4, a cover plate 23 is arranged on the top of the dust collection box 8, an exhaust fan 10 is installed in the gas guide warehouse 9, an electromagnetic valve 12 is installed on each connecting pipe 3, and a plurality of groups of filter screens 1 are installed in the connecting pipe 3.

[0035] Preferably, the filter frame 7 is provided in two groups, and each group of filter frames 7 is connected with the side cover 5 through a group of driving assemblies 6. Two groups of partition plates 20 are fixedly arranged on the inner wall of the integrated filter cartridge 1, and the two groups of partition plates 20 are rotationally symmetrical around the vertical central axis of the integrated filter cartridge 1.

[0036] Preferably, the driving motor 14 is fixed in the middle of the inner wall of the integrated filter cartridge 1, a driving gear two 17 is fixedly sleeved on the output shaft of the driving motor 14, a driving gear one 16 is engaged with the driving gear two 17, and the driving gear one 16 is fixedly sleeved on the outer wall of the driving connecting rod 15, the airflow control plate 18 is fixedly sleeved on both ends of the driving connecting rod 15, and the airflow control plate 18 is attached to the partition plate 20 and movably connected with the inner wall of the integrated filter cartridge 1.

[0037] Preferably, the partition plate 20 is provided with a ventilation hole two 21, and the airflow control plate 18 is provided with a ventilation hole one 19, and the ventilation hole two 21 and the ventilation hole one 19 have the same hole diameter.

[0038] Preferably, the cover plate 23 is provided with an air hole at the top for communication with the outside.

[0039] The working principle and beneficial effects of the above technical scheme are as follows: in use, the driving motor 14 is started to drive the driving gear two 17 to rotate, and then the driving gear one 16 drives the driving connecting rod 15 to rotate, until the right partition plate 20 in FIG. Figures 3-7 is blocked by the airflow control plate 18, and the left partition plate 20 coincides with the ventilation hole one 19 and the ventilation hole two 21 on the airflow control plate 18, the exhaust fan 10 is started to make the waste gas generated in the 3D printer enter the integrated filter cartridge 1 through the left U-shaped pipe 4 along the connecting pipe one 3, at this time, the waste gas will be filtered by the several groups of filter screens two 38 in the left filter frame 7 to become clean gas and be discharged from the top of the air guide bin 9 through the ventilation hole two 21 and the ventilation hole one 19, when the left filter frame 7 is used for a period of time, waste will accumulate in the left integrated filter cartridge 1, at this time, the three-way valve 2 is rotated and the driving motor 14 is started in reverse rotation, so that the left partition plate 20 is blocked by the airflow control plate 18, and the right partition plate 20 coincides with the ventilation hole one 19 and the ventilation hole two 21 on the airflow control plate 18, and the waste gas enters the right integrated filter cartridge 1 along the right U-shaped pipe 4 for filtering.

[0040] At this time, the electromagnetic valve 12 on the left connecting pipe three 13 can be opened (the right electromagnetic valve 12 needs to be closed), so that the dust collection box 8 on the left side forms a communication space with the integrated filter cartridge 1 on the side through the connecting pipe two 11 (the air hole on the side cover plate 23 needs to be opened), under the assistance of the exhaust fan 10, the accumulated waste with light weight on the left side of the filter frame 7 can be extracted from the connecting pipe two 11 to the dust collection box 8 on the side, and the attachments on the filter frame 7 can be sucked at the same time, so as to prevent clogging, and the setting of the plurality of filter screen one 22 on the connecting pipe three 13 can also prevent waste from entering the air guide warehouse 9, so that the waste with light weight can be accumulated in the dust collection box 8 and then taken out by opening the cover plate 23, which can not only separate waste with different weights, but also prolong the service life of the filter screen two 38 in the filter frame 7.

[0041] In the above manner, the left and right dust collection boxes 8 can be used alternately, the accumulated waste in the integrated filter cartridge 1 can be separated for subsequent processing without stopping the 3D printer, the working efficiency of the 3D printer is greatly improved, and the cleanliness of the printing chamber in the 3D printer can be ensured at all times.

[0042] It should be understood that the dust collection box 8 is provided to separate and prolong the service life of the filter screen two 38, and the 3D printer still needs to be cleaned or replaced by the driving assembly 6 and the filter frame 7 after a long time of use.

[0043] Embodiment 3

[0044] Based on any one of embodiments 1-2, please refer to Figure 3 The driving assembly 6 comprises a positioning frame 26 fixedly arranged on the top outer wall of the integrated filter cartridge 1, a driving rod one 28 rotationally connected with the positioning frame 26, the side cover 5 close to one side of the positioning frame 26 connected with the driving rod one 28 through two groups of ring type connecting pieces 27, a torsional spring 31 installed between the two groups of ring type connecting pieces 27, a filter screen support 36 rotationally connected with the inner wall of the integrated filter cartridge 1, a plurality of filter screen insertion grooves 37 formed in the filter screen support 36, a filter screen two 38 movably installed in each filter screen insertion groove 37, a sealing plate 39 movably installed on the top of the filter screen support 36, and an L-shaped avoiding slot 47 formed in the filter screen support 36.

[0045] Preferably, two groups of support frames one 24 and two groups of support frames two 25 are symmetrically arranged on the front and back outer walls of the integrated filter cartridge 1, the two ends of the driving rod one 28 are rotationally connected with the two groups of support frames two 25, the same driving rod two 34 is rotationally installed on each group of support frames one 24, the driving rod two 34 is fixedly sleeved with a driving wheel four 44 on the outer wall, the end of the driving rod two 34 away from the support frames one 24 is movably extended into the horizontal section of the L-shaped avoiding slot 47 and is fixedly sleeved with a bevel gear two 42, the driving rod four 40 is movably installed in the vertical section of the L-shaped avoiding slot 47, one end of the driving rod four 40 is fixedly connected with the sealing plate 39, the other end of the driving rod four 40 is fixedly sleeved with a bevel gear one 41, the bevel gear one 41 is engaged with the bevel gear two 42, and the two groups of driving rod three 35 are symmetrically installed on the front and back outer walls of the integrated filter cartridge 1, and one end of each group of driving rod three 35 is fixedly sleeved with a driving wheel three 43, and the other end of the driving rod three 35 is fixedly connected with the outer wall of the filter screen support 36.

[0046] Preferably, the outer wall of the driving rod one 28 is fixedly sleeved with two groups of driving wheels one 29, and each group of driving wheels one 29 is connected with the same side driving wheel three 43 through a driving belt two 33, one group of support frames two 25 is movably installed with a driving wheel two 30, and one end of the driving rod one 28 is movably extended into the driving wheel two 30, the end of the driving rod one 28 extended into the driving wheel two 30 is fixedly provided with a push plate 46, and the driving wheel two 30 is installed with a driving baffle 45, the driving rod one 28 drives the driving wheel two 30 to rotate intermittently through the cooperation of the push plate 46 and the driving baffle 45, and the driving wheel two 30 is connected with the driving wheel four 44 through a driving belt one 32.

[0047] The working principle and beneficial effects of the above technical solution are as follows: when the filter screen slot 37 in the left filter frame 7 is used for filtering, the filter screen slot 37 in the right filter frame 7 can be cleaned. At this time, as shown in FIG. 2, the right dividing plate 20 is blocked by the air flow control plate 18, the left dividing plate 20 coincides with the air vent hole one 19 and the air vent hole two 21 on the air flow control plate 18, and the waste gas in the printer is filtered from the left in the manner of embodiment 2, and the user manually opens the right side cover 5, which drives the driving wheel one 29 and the driving belt two 33 to drive the driving wheel three 43 to rotate synchronously while rotating around the positioning frame 26 through the driving rod one 28, at this time, the filter frame 7 in the integrated filter cartridge 1 on the right side rotates synchronously (from the vertical state to the horizontal state). Figure 3

[0048] ​At the same time, when the driving rod one 28 is just rotated at one end of the driving wheel two 30, the driving wheel two 30 will not rotate due to the gap between the driving baffle 45 and the push plate 46, and when the filter frame 7 is rotated by 35°, the push plate 46 just abuts against the driving baffle 45. At this time, the driving rod one 28 continues to rotate and pushes the driving wheel two 30 to rotate and drive the driving wheel four 44 to rotate synchronously through the driving belt one 32, and the driving wheel four 44 rotates synchronously through the driving rod two 34 to drive the bevel gear two 42 to rotate, and then drives the driving rod four 40 to rotate through the bevel gear one 41, so that the sealing plate 39 no longer blocks the filter screen slot 37 on the filter screen support 36.

[0049] In the above manner, when the side cover 5 is opened, the filter screen support 36 in the vertical state rotates to the horizontal direction, and the sealing plate 39 rotates synchronously to provide a space for the disassembly of the filter screen two 38, until the side cover 5 is completely opened, and the filter screen support 36 is completely in the horizontal state, at which time the user can clean or replace the filter screen two 38 installed therein, and can also clean or maintain the inside of the integrated filter cartridge 1 on this side synchronously. ​

[0050] In the above manner, the left and right sides of the integrated filter cartridge 1 can be cleaned alternately without stopping the 3D printer, so that the 3D printer can be kept clean at all times without reducing the working efficiency, which is simple and efficient.

[0051] Embodiment 4

[0052] The application further provides a 3D printer for filtering by the integrated filter system, comprising a printer main body, and an air outlet is arranged at the top of a printing chamber of the printer main body, the air outlet is sealingly connected with a U-shaped pipe 4 of the integrated filter cartridge 1 through a connecting pipe one 3, a control unit is arranged in the printer main body, the control unit is electrically connected with a driving motor 14, an exhaust fan 10 and an electromagnetic valve 12 respectively, and the control unit is configured to synchronously control the switching action of the filter frame 7 of the driving assembly 6 and the start-stop timing of the exhaust fan 10 according to the printing working condition.

[0053] The working principle and beneficial effects of the above technical solution are as follows: the control unit monitors the dust concentration of the printing chamber in real time through the built-in sensor and the differential pressure data of the filter system. Under the standard printing working condition, the control unit defaults to open the left filter channel and controls the exhaust fan to run at the basic speed to balance the waste gas filtering efficiency and energy consumption. When it is detected that the differential pressure of the left filter channel exceeds the threshold value, indicating that the filter screen two is blocked, the control unit performs the following actions:

[0054] ​1. Switching instruction: send a reverse rotation signal to the driving motor 14, drive the airflow control plate 18 to close the left vent, and simultaneously open the right filter channel;

[0055] 2. Airflow coordination: during switching, temporarily increase the speed of the exhaust fan 10 to compensate for the airflow fluctuation caused by path switching, and maintain the stability of the printing chamber negative pressure;

[0056] 3. Dust collection linkage: after switching, open the right electromagnetic valve 12 to start the waste suction function of the right dust collection tank 8, and close the left electromagnetic valve 12 to prevent airflow interference.

[0057] In the above manner, the start-stop logic of the driving motor 14, the electromagnetic valve 12, and the exhaust fan 10 can be bound with the printing process depth, for example, automatically increasing the fan speed when printing high-volatile materials to strengthen the exhaust gas treatment capacity.

[0058] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and range of the equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

Claims

1. An integrated filtration system, characterized in that: include: An integrated filter cartridge (1) is provided with a dust collecting box (8) and an air guide chamber (9) on the top of the integrated filter cartridge (1), a filter frame (7) is provided inside the integrated filter cartridge (1), a U-shaped tube (4) is provided at the bottom of the integrated filter cartridge (1), one end of a connecting tube (3) is connected to the U-shaped tube (4), and the other end of the connecting tube (3) is connected to the air outlet of the 3D printer, two sets of side covers (5) are symmetrically provided on both sides of the integrated filter cartridge (1), and the side covers (5) are linked to the filter frame (7) in the integrated filter cartridge (1) through a driving assembly (6); The driving assembly (6) comprises: a positioning frame (26), the positioning frame (26) is fixedly arranged on the top outer wall of the integrated filter cartridge (1), a driving rod (28) is rotatably connected to the positioning frame (26), a side of the side cover (5) close to the positioning frame (26) is connected to the driving rod (28) through two groups of annular connecting members (27), a torsion spring (31) is installed between the two groups of annular connecting members (27), a filter bracket (36) is rotatably connected to the inner wall of the integrated filter cartridge (1), a plurality of groups of filter slots (37) are provided in the filter bracket (36), and a filter (38) is movably installed in each group of filter slots (37), a sealing plate (39) is movably installed on the top of the filter bracket (36), and an L-shaped avoidance groove (47) is provided in the filter bracket (36); Two sets of support frames (24) and two sets of support frames (25) are symmetrically fixed on the outer walls of the front and rear sides of the integrated filter cartridge (1). The two ends of the driving rod (28) are rotatably connected to the two sets of support frames (25). The same driving rod (34) is rotatably installed on each set of support frames (24). The outer wall of the driving rod (34) is fixedly sleeved with a driving wheel (44). The end of the driving rod (34) away from the supporting frame (24) is movably extended to the horizontal section of the L-shaped avoidance groove (47) and is fixedly sleeved with a bevel gear (42). The driving wheel (44) is fixedly sleeved on the outer wall of the driving rod (34). Rod four (40) is movably installed in the vertical section of the L-shaped avoidance groove (47), and one end of the driving rod four (40) is fixedly connected to the sealing plate (39), and the other end of the driving rod four (40) is fixedly sleeved with a bevel gear one (41), and the bevel gear one (41) is meshed with the bevel gear two (42). Two groups of driving rods three (35) are symmetrically installed on the outer walls of the front and rear sides of the integrated filter cylinder (1), and one end of each group of driving rods three (35) is fixedly sleeved with a driving wheel three (43), and the other end of the driving rod three (35) is fixedly connected to the outer wall of the filter bracket (36); Two groups of driving wheels (29) are symmetrically fixedly sleeved on the outer wall of the driving rod (28), and each group of driving wheels (29) is connected to the driving wheel (43) on the same side through a driving belt (33). A driving wheel (30) is movably installed on one group of support frames (25), and one end of the driving rod (28) is movably extended into the driving wheel (30). A push plate (46) is fixed on the outer wall of the end of the driving rod (28) extending into the driving wheel (30). A driving baffle (45) is installed in the driving wheel (30). The driving rod (28) drives the driving wheel (30) to rotate intermittently through the cooperation of the push plate (46) and the driving baffle (45). The driving wheel (30) and the driving wheel (44) are connected through a driving belt (32).

2. The integrated filtration system according to claim 1, characterized in that: The dust collecting boxes (8) are arranged in two groups, and the two groups of dust collecting boxes (8) are symmetrically arranged on both sides of the air guide bin (9). One side of each group of dust collecting boxes (8) is connected to the integrated filter cartridge (1) through a second connecting pipe (11), and the other side of each group of dust collecting boxes (8) is connected to the air guide bin (9) through a third connecting pipe (13). The air guide bin (9) is connected to the inside of the integrated filter cartridge (1), and a discharge port is provided at the top of the air guide bin (9).

3. The integrated filtration system according to claim 2, characterized in that: A three-way valve (2) is installed at the connection between the connecting pipe (3) and the U-shaped pipe (4), a cover plate (23) is provided on the top of the dust collecting box (8), an exhaust fan (10) is installed in the air guide bin (9), a solenoid valve (12) is installed on each group of connecting pipes (13), and a plurality of groups of filter screens (22) are installed in the connecting pipes (13).

4. The integrated filtration system according to claim 1, characterized in that: The filter frames (7) are provided in two groups, and each group of filter frames (7) is connected to the side cover (5) via a group of drive components (6). The two groups of partition plates (20) are fixedly arranged on the inner wall of the integrated filter cartridge (1), and the two groups of partition plates (20) are rotationally symmetrical around the vertical center axis of the integrated filter cartridge (1).

5. The integrated filtration system according to claim 4, characterized in that: The driving motor (14) is fixedly mounted on the middle portion of the inner wall of the integrated filter cartridge (1); a driving gear 2 (17) is fixedly sleeved on the output shaft of the driving motor (14); the driving gear 1 (16) is meshed with the driving gear 2 (17); and the driving gear 1 (16) is fixedly sleeved on the outer wall of the driving connecting rod (15); air flow control plates (18) are fixedly sleeved on both ends of the driving connecting rod (15); and the air flow control plates (18) are attached to the partition plate (20) and are movably connected to the inner wall of the integrated filter cartridge (1).

6. The integrated filtration system according to claim 5, characterized in that: A second ventilation hole (21) is provided on the dividing plate (20), and a first ventilation hole (19) is provided on the airflow control plate (18), and the apertures of the second ventilation hole (21) and the first ventilation hole (19) are the same.

7. A 3D printer for filtering by an integrated filtration system according to any one of claims 1 to 6, characterized in that: The invention comprises a printer body, wherein an air outlet is provided at the top of a printing chamber of the printer body, and the air outlet is sealedly connected to a U-shaped tube (4) of an integrated filter cartridge (1) through a connecting tube (3). A control unit is provided in the printer body, and the control unit is electrically connected to a driving motor (14), an exhaust fan (10), and a solenoid valve (12) respectively, and the control unit is configured to synchronously regulate the switching action of the filter frame (7) of the driving component (6) and the start and stop timing of the exhaust fan (10) according to the printing working conditions.

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