Filtering and cleaning device for metal 3d printer

Abstract

The utility model discloses a filtering and cleaning device for a metal 3d printer, which comprises a mounting sleeve and a connecting sleeve, and the connecting sleeve fixedly penetrates through the middle end of the top of the mounting sleeve. According to the utility model, through the design of switching functions, the used activated carbon filter cotton can be cleaned without stopping the 3d printer, and in addition, the unused activated carbon filter cotton can be used for filtering flue gas generated when the 3d printer works, so that by using the device disclosed by the utility model, the flue gas can be effectively filtered, and the utilization rate of the flue gas can be improved. And the powder processing and manufacturing efficiency of the 3d printer is ensured, and the convenience of cleaning the used activated carbon filter cotton is also ensured. Through the design of a collection function, filtered particles can be independently stored and treated, workers can conveniently and independently take out the collected particles and move the particles to a designated area for corresponding treatment, the particles are prevented from blocking the activated carbon filter cotton, and the use effect of the activated carbon filter cotton is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning devices, in particular to a filtering cleaning device for a metal 3D printer. Background Art

[0002] As we all know, metal 3D printing technology is a very mainstream manufacturing technology in modern times. It uses laser to melt powder into shape. Since laser will produce a certain amount of smoke when melting metal powder, a filtering and cleaning device is often used to circulate and filter it. When using the existing filtering and cleaning device for metal 3D printers, it generally generates negative pressure through a large air volume circulating fan, quickly takes away the smoke and isolates the smoke through the filter element at the air inlet end, and returns the cleaned gas to the molding cavity to form a stable circulation process. Since the purified smoke often contains large particles, powders, smoke and other impurities with different particle sizes, the filter element often needs to be replaced frequently, which can easily cause technical problems such as low equipment working efficiency and high operating costs, and has low practicality.

[0003] The patent name is "A filter cleaning device for a metal 3D printer" with the publication number "CN214443082U". The public document solves the above problems, but when the device in the public document is used, the 3D printer needs to be shut down to clean the filter element, which in turn affects the efficiency of the 3D printer in powder melting and molding, that is, reduces the working efficiency of the 3D printer. Based on this, the utility model designs a filter cleaning device for a metal 3D printer to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a filtering and cleaning device for a metal 3D printer to solve the problems raised by the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filtering and cleaning device for a metal 3D printer, comprising a mounting sleeve and a connecting sleeve, the connecting sleeve being fixedly penetrated through the middle end of the top of the mounting sleeve, partitions being fixedly arranged on the left and right sides of the interior of the mounting sleeve, a first makeshift hole being integrally arranged on the upper end of the interior of the left partition, and a second makeshift hole being integrally arranged on the lower end of the interior of the right partition, detachable activated carbon filter cottons being arranged on the left and right sides of the interior of the mounting sleeve, an exhaust fan being fixedly arranged on the upper end of the interior of the connecting sleeve, a mounting pipe being fixedly penetrated through the top of the connecting sleeve, a switching assembly being arranged inside the mounting sleeve, the switching assembly comprising a rotating plate connected to the left and right sides of the interior of the mounting sleeve, a mounting hole being integrally arranged on the upper end of the interior of the rotating plate, a connecting rod being fixedly arranged between the two rotating plates, a motor being fixedly arranged on the middle end of the interior of the mounting sleeve, a driving gear provided on the external fixed sleeve of the head end of the motor being meshed with the teeth of a driven gear provided on the external fixed sleeve of the connecting rod.

[0006] Furthermore, the outer side of the rotating plate and the inner side of the partition are designed to fit each other, and the motor is a stepping motor, and the motor stops running every time it rotates 180 degrees.

[0007] Furthermore, a Y-shaped connecting pipe is fixedly passed through the left and right sides of the bottom of the installation sleeve, and a three-way valve is rotatably passed through the middle side of the front end of the connecting pipe.

[0008] Furthermore, a placement tube is fixedly passed through the left and right sides of the top of the installation sleeve, a box body is fixedly provided on the left and right sides of the top of the installation sleeve, one end of the placement tube away from the installation sleeve is fixedly passed through the outside of the box body, and a one-way valve is fixedly provided inside the placement tube.

[0009] Furthermore, a support tube is fixedly passed through the inner side of the box body, and one end of the support tube away from the box body is fixedly passed through the connecting sleeve, and the support tube is located at the lower end of the exhaust fan.

[0010] Furthermore, a sealing plate is provided at the front end of the top of the box body through a hinged rear end and a lock, and a waterproof and breathable membrane is fixedly provided on the inner and outer sides of the support tube.

[0011] Furthermore, a valve is rotatably penetrated at the top of the support tube, and the interior of the support tube is in communication with the box body and the interior of the connecting sleeve.

[0012] Furthermore, the diameter of the rotating plate is equal to the diameter of the partition plate, and the diameters of the rotating plate and the partition plate are equal to the inner diameter of the mounting sleeve.

[0013] Furthermore, sealing covers are provided on the threaded sleeves on the left and right sides of the outside of the installation sleeve, and the distance between the end of the placement tube away from the box body and the activated carbon filter cotton is one centimeter.

[0014] Furthermore, the diameter of the mounting hole is equal to the diameter of the first clearance hole and the second clearance hole, and the first clearance hole and the second clearance hole are mirror-distributed with the axis of the connecting rod as the center.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model uses a switching function design to clean the used activated carbon filter cotton without shutting down the 3D printer. In addition, the unused activated carbon filter cotton can filter the smoke generated when the 3D printer is working. It can be seen that by using the device in this application, not only the efficiency of the 3D printer in processing and making powder is ensured, but also the convenience of cleaning the used activated carbon filter cotton is ensured.

[0017] 2. The utility model can store and process the filtered particles separately through the design of the collection function, so that the staff can take out the collected particles separately and move them to the designated area for corresponding processing, thereby avoiding the particles from clogging the activated carbon filter cotton. It can be seen that by using the device in this application, the use effect of the activated carbon filter cotton is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a front perspective view of a filter cleaning device for a metal 3D printer according to the utility model;

[0020] Figure 2 This is a three-dimensional diagram of the internal structure of a filter cleaning device for a metal 3D printer according to the utility model;

[0021] Figure 3 A three-dimensional diagram of the placement tube and the one-way valve;

[0022] Figure 4 It is a three-dimensional diagram of the support tube and the waterproof breathable membrane;

[0023] Figure 5 is a stereogram of a switching assembly;

[0024] Figure 6 This is an exploded perspective view of the partition and the mounting sleeve.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1-installation sleeve, 2-connecting sleeve, 3-partition, 4-first make way hole, 5-second make way hole, 6-activated carbon filter cotton, 7-exhaust fan, 8-installation pipe, 9-switching assembly, 901-turn plate, 902-installation hole, 903-connecting rod, 904-motor, 905-driving gear, 906-driven gear, 10-connecting pipe, 11-three-way valve, 12-placing tube, 13-box body, 14-support tube, 15-sealing plate, 16-waterproof breathable membrane, 17-valve, 18-sealing cover, 19-check valve. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1

[0029] like Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, it includes a mounting sleeve 1 and a connecting sleeve 2, the connecting sleeve 2 is fixedly passed through the middle end of the top of the mounting sleeve 1, partitions 3 are fixedly provided on the left and right sides of the interior of the mounting sleeve 1, a first makeshift hole 4 is integrally provided on the upper end of the interior of the left partition 3, and a second makeshift hole 5 is integrally provided on the lower end of the interior of the right partition 3, detachable activated carbon filter cotton 6 is arranged on the left and right sides of the interior of the mounting sleeve 1, an exhaust fan 7 is fixedly provided on the upper end of the interior of the connecting sleeve 2, a mounting pipe 8 is fixedly passed through the top of the connecting sleeve 2, a switching component 9 is arranged inside the mounting sleeve 1, the switching component 9 includes a rotating plate 901 connected to the left and right sides of the interior of the mounting sleeve 1, a mounting hole 902 is integrally provided on the upper end of the interior of the rotating plate 901, a connecting rod 903 is fixedly provided between the two rotating plates 901, a motor 904 is fixedly provided on the middle end of the interior of the mounting sleeve 1, and a driving gear 905 fixedly provided on the outside of the head end of the motor 904 is meshed with the driven gear 906 fixedly provided on the outside of the connecting rod 903.

[0030] The outer side of the rotating plate 901 and the inner side of the partition 3 are designed to fit each other. The motor 904 is a stepping motor. The motor 904 stops running every time it rotates 180 degrees. A Y-shaped connecting pipe 10 is fixedly passed through the left and right sides of the bottom of the installation sleeve 1. A three-way valve 11 is rotated and passed through the middle side of the front end of the connecting pipe 10. First, the installation hole 902 on the left side overlaps with the first clearance hole 4, and the installation hole 902 on the right side is misaligned with the second clearance hole 5. The staff will turn the bottom end of the connecting pipe 10 toward the working end of the 3D printer, and then turn on the exhaust fan 7. The exhaust fan 7 will discharge the smoke generated when the 3D printer is working through the connecting pipe 10 into the left side of the installation sleeve 1, so that the activated carbon filter cotton 6 on the left side can filter the particulate matter in the smoke, and the activated carbon filter cotton 6 will filter and purify the smoke and then discharge it from the first clearance hole 4 on the left side and the installation hole 902 that overlap with each other through the installation pipe 8. When the staff needs to clean the activated carbon filter cotton 6 on the left side, first turn on the motor 904. Then, by using the three-way valve 11, the connecting pipe 10 is disconnected from the left side of the inside of the installation sleeve 1, and the connecting pipe 10 is connected to the right side of the inside of the installation sleeve 1. The motor 904 drives the active gear 905 to drive the driven gear 906 to link the connecting rod 903 and the rotating plate 901 to rotate 180 degrees and then stop running. At this time, the mounting hole 902 on the left and the first makeshift hole 4 are misaligned with each other, and the mounting hole 902 on the right and the second makeshift hole 5 overlap with each other. At this time, the suction force generated by the exhaust fan 7 discharges the smoke into the right side of the inside of the installation sleeve 1, so that the activated carbon filter cotton 6 on the right side filters the smoke, and the staff can carry out subsequent cleaning work on the activated carbon filter cotton 6 on the left.

[0031] Example 2

[0032] like Figure 2 , Figure 3 , Figure 4As shown, a placement tube 12 is fixedly passed through the left and right sides of the top of the installation sleeve 1, and a box body 13 is fixedly provided on the left and right sides of the top of the installation sleeve 1. The end of the placement tube 12 away from the installation sleeve 1 is fixedly passed through the outside of the box body 13, and a one-way valve 19 is fixedly provided inside the placement tube 12. A support tube 14 is fixedly passed through the inside of the box body 13, and the end of the support tube 14 away from the box body 13 is fixedly passed through the connecting sleeve 2. The support tube 14 is at the lower end of the exhaust fan 7. The front end of the top of the box body 13 is hinged and the rear end is provided with a sealing plate 15 through a lock buckle. A waterproof and breathable membrane 16 is fixedly provided inside and outside the support tube 14. The top of the support tube 14 is rotated A valve 17 is movable through the support tube 14, the interior of the support tube 14 is connected with the box body 13 and the interior of the connecting sleeve 2, the diameter of the rotating plate 901 is equal to the diameter of the partition 3, the diameter of the rotating plate 901 and the partition 3 is equal to the inner diameter of the installation sleeve 1, and the threaded sleeves on the left and right sides of the outside of the installation sleeve 1 are provided with sealing covers 18, the distance between the end of the placement tube 12 away from the box body 13 and the activated carbon filter cotton 6 is one centimeter, the diameter of the installation hole 902 is equal to the diameter of the first make way hole 4 and the second make way hole 5, and the first make way hole 4 and the second make way hole 5 are mirror-distributed with the axis of the connecting rod 903 as the center.

[0033] According to the operation steps in Example 1, when the activated carbon filter cotton 6 on the right side filters the smoke, the staff can open the valve 17 on the left side. At this time, the suction force generated by the exhaust fan 7 adsorbs the particulate matter that has been filtered on the left side of the installation sleeve 1, and then discharges the particulate matter on the left side of the installation sleeve 1 from the placement pipe 12 on the left side into the box body 13 on the left side. The blocking effect of the waterproof breathable membrane 16 can prevent the particulate matter in the box body 13 from being discharged from the support pipe 14 into the connecting sleeve 2. In the above manner, the filtered particulate matter is collected to prevent the particulate matter from clogging the activated carbon filter cotton 6, and then the activated carbon filter cotton 6 is cleaned. After cleaning, the valve 17 is closed, and the sealing plate 15 is opened to take out the particulate matter collected in the box body 13. In addition, according to the actual use, the staff can open the sealing cover 18 on the left side to separate the activated carbon filter cotton 6 used for a long time on the left side from the installation sleeve 1, so as to replace the activated carbon filter cotton 6. The one-way valve 19 can prevent the particulate matter in the box body 13 from flowing back to the inside of the installation sleeve 1 from the placement pipe 12.

Claims

1. A filter cleaning device for a metal 3D printer, comprising a mounting sleeve (1) and a connecting sleeve (2), characterized in that: The connecting sleeve (2) is fixedly passed through the middle of the top of the installation sleeve (1); partitions (3) are fixedly provided on the left and right sides of the interior of the installation sleeve (1); a first clearance hole (4) is integrally provided at the upper end of the interior of the left partition (3); a second clearance hole (5) is integrally provided at the lower end of the interior of the right partition (3); detachable activated carbon filter cotton (6) is provided on the left and right sides of the interior of the installation sleeve (1); an exhaust fan (7) is fixedly provided at the upper end of the interior of the connecting sleeve (2); a mounting pipe (8) is fixedly passed through the top of the connecting sleeve (2); and the installation sleeve (1) A switching assembly (9) is provided inside, the switching assembly (9) comprising a rotating plate (901) connected to the left and right sides of the inside of the mounting sleeve (1), the upper end of the rotating plate (901) is integrally provided with a mounting hole (902), a connecting rod (903) is fixedly provided between the two rotating plates (901), a motor (904) is fixedly provided at the middle end inside the mounting sleeve (1), and a driving gear (905) fixedly sleeved on the outside of the head end of the motor (904) is meshed with the teeth of a driven gear (906) fixedly sleeved on the outside of the connecting rod (903).

2. According to claim 1, a filter cleaning device for a metal 3D printer, characterized in that: The outer side of the rotating plate (901) and the inner side of the partition (3) are designed to fit each other, and the motor (904) is a stepping motor. The motor (904) stops running every time it rotates 180 degrees.

3. According to claim 1, a filter cleaning device for a metal 3D printer, characterized in that: A Y-shaped connecting pipe (10) is fixedly passed through the left and right sides of the bottom of the installation sleeve (1), and a three-way valve (11) is rotatably passed through the middle side of the front end of the connecting pipe (10).

4. According to claim 1, a filter cleaning device for a metal 3D printer, characterized in that: A placement tube (12) is fixedly passed through the left and right sides of the top of the installation sleeve (1), a box body (13) is fixedly provided on the left and right sides of the top of the installation sleeve (1), one end of the placement tube (12) away from the installation sleeve (1) is fixedly passed through the outside of the box body (13), and a one-way valve (19) is fixedly provided inside the placement tube (12).

5. A filter cleaning device for a metal 3D printer according to claim 4, characterized in that: A support tube (14) is fixedly passed through the inner side of the box body (13); one end of the support tube (14) away from the box body (13) is fixedly passed through the connecting sleeve (2); and the support tube (14) is located at the lower end of the exhaust fan (7).

6. A filter cleaning device for a metal 3D printer according to claim 5, characterized in that: The front end of the top of the box body (13) is hinged and the rear end is locked with a sealing plate (15), and the inner and outer sides of the support tube (14) are fixedly provided with a waterproof and breathable membrane (16).

7. A filter cleaning device for a metal 3D printer according to claim 5, characterized in that: A valve (17) is rotatably inserted through the top of the support tube (14), and the interior of the support tube (14) is in communication with the box body (13) and the interior of the connecting sleeve (2).

8. According to claim 1, a filter cleaning device for a metal 3D printer, characterized in that: The diameter of the rotating plate (901) is equal to the diameter of the partition (3), and the diameters of the rotating plate (901) and the partition (3) are equal to the inner diameter of the mounting sleeve (1).

9. A filter cleaning device for a metal 3D printer according to claim 4, characterized in that: The threaded sleeves on the left and right sides of the outside of the installation sleeve (1) are provided with sealing covers (18), and the distance between the end of the placement tube (12) away from the box body (13) and the activated carbon filter cotton (6) is one centimeter.

10. The filter cleaning device for a metal 3D printer according to claim 1, characterized in that: The diameter of the mounting hole (902) is equal to the diameter of the first clearance hole (4) and the second clearance hole (5), and the first clearance hole (4) and the second clearance hole (5) are mirror-distributed with the axis of the connecting rod (903) as the center.

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