A 3D printer with automatic trough cleaning and automatic odor removal functions

Abstract

The invention discloses a 3D printer with automatic trough cleaning and automatic odor removal functions, and relates to the technical field of 3D printers. The invention comprises a chassis, a mounting seat is arranged on the top of the chassis, a trough is arranged on the top surface of the mounting seat, an automatic cleaning mechanism for reciprocatingly cleaning the trough is arranged on the trough, storage cabinets are arranged on both sides of the bottom surface of the mounting seat, the two storage cabinets are respectively used to hold resin and cleaning liquid, a small bidirectional pump is arranged on one side of each storage cabinet, a protective cover is fixedly installed on the top surface of the mounting seat, and a purification and deodorization device for absorbing and degrading odorous gases is arranged on the inner side wall of the protective cover; the invention recycles unused resin by using a small bidirectional pump through an automatic cleaning mechanism, then injects cleaning liquid into the trough, and cleans the trough by reciprocating a cleaning plate in the trough through a screw drive mechanism, thereby keeping the trough clean; the discharged odorous gas is processed by the purification and deodorization device, and toxic and harmful substances in the degraded gas are absorbed.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printers, and in particular to a 3D printer with automatic trough cleaning and automatic odor removal functions. Background Art

[0002] The photocuring 3D printer is an advanced 3D printing technology that uses photocuring resin to build objects layer by layer. Its working principle is to irradiate the photosensitive resin with UV light to solidify it into a solid in a specific area. This printing technology has high precision, high speed and good surface quality, and is suitable for manufacturing parts and models with complex shapes. Photocuring 3D printers are widely used in many fields, including industrial manufacturing, healthcare, aerospace, etc. In the field of industrial manufacturing, it can be used for rapid prototyping, customized parts production and mold manufacturing, etc. In the field of healthcare, it can be used to manufacture bionic organs, personalized medical devices and dental models, etc. In the field of aerospace, it can be used to manufacture lightweight structural parts and parts with complex shapes. This has a profound impact on traditional process flows, production lines, factory models, and industrial chain combinations, and is a representative disruptive technology in the manufacturing industry.

[0003] The resins used in photocuring 3D printers usually contain volatile organic compounds (VOCs), which can cause odor problems during the printing process. These VOCs are released into the air during the printing process, and these odors may cause discomfort, especially in confined spaces. In addition, after the photocuring 3D printer completes printing, it usually takes a considerable amount of time to clean the resin tank. Existing photocuring 3D printers usually require manual operations to clean the resin tank, such as scraping, wiping or cleaning with chemical solvents, which is a tedious task.

[0004] The patent number CN 217891898 U disclosed a resin tank for a 3D printer, including a printer body and a resin tank body arranged inside the printer body, a sealing cover is hinged on the outer wall of the printer body, a positioning rod is arranged inside the printer body, and the outer wall of the positioning rod is slidably connected to the printing body, the bottom end of the printer body is connected to a water collecting tank, the top of the water collecting tank is connected to a water pumping pipe, the input end of the water pumping pipe is connected to a water pumping pump, the output end of the water pumping pump is connected to a drain pipe, the end of the drain pipe far from the water pump passes through the positioning rod and is connected to a cleaning nozzle, and the cleaning nozzle is located directly above the resin tank body; by setting the resin tank body, water pumping pump, water pumping pipe, water collecting tank, drain pipe, cleaning nozzle and sealing cover, it is avoided that impurities carrying toxic gases will remain after the resin tank body of the existing device is used. However, the above technical solution only uses a simple flushing resin tank with cleaning liquid, which results in that the resin tank cannot be cleaned without using a cleaning cloth or cleaning tools, and the cleaning liquid cannot be automatically recovered after cleaning, and it still needs to be recovered manually, which is labor-intensive and time-consuming.

[0005] In addition, after searching, the patent number CN 219523072 U discloses a 3D printer with an automatic odor removal function, including a 3D printer body, a drainage protective cover, an exhaust hole, an exhaust pipe and a purification and deodorization device; the drainage protective cover is enclosed on the 3D printer body, the exhaust hole is opened on the top of the drainage protective cover, the exhaust pipe is installed on the drainage protective cover, and the purification and deodorization device is arranged on the drainage protective cover and the exhaust pipe. The 3D printer with an automatic odor removal function can prevent toxic and harmful gases from floating around in the air through the drainage protective cover; the odor removal device can absorb the concentrated odorous gases with activated carbon respectively. The two purification methods of atomized solution degradation are attached, thereby effectively reducing the harm of odorous gases; however, this technical solution is to conduct drainage purification by connecting two interconnected exhaust pipes to the 3D printer, which limits the reliability of its movement and transmission, and the external exhaust pipes also affect its appearance; in addition, the flow of the odorous gas relies on the blowing of the fan, and enters the two exhaust pipes through the exhaust holes for purification, and the airflow generated by the fan may not be uniform enough, resulting in local high-pressure or low-pressure areas in the system, affecting the stability and efficiency of the flow of the odorous gas, thereby affecting the purification efficiency of the odorous gas. Summary of the invention

[0006] In view of this, in order to solve the problems existing in the above-mentioned background technology, the purpose of the present invention is to provide a 3D printer with automatic material trough cleaning and automatic odor removal functions.

[0007] The present invention achieves the above-mentioned purpose through the following technical solutions: a 3D printer with automatic material trough cleaning and automatic odor removal functions is provided, comprising a chassis, a mounting seat is installed on the top of the chassis, a lifting mechanism is installed on the mounting seat, a printing platform component is connected and installed on the lifting mechanism, a material trough is installed on the top surface of the mounting seat, the material trough comprises a trough body, a transparent film for transmitting light for curing is provided in the middle part of the trough body, cleaning troughs are respectively provided on both sides of the transparent film and are lower than the plane of the transparent film, and material ports for feeding and discharging materials are provided at both ends of the two cleaning troughs; an automatic cleaning machine for reciprocating cleaning of the material trough is installed on the material trough The automatic cleaning mechanism comprises a screw drive assembly, on which a cleaning plate is installed; storage cabinets are respectively installed on both sides of the bottom surface of the mounting seat, and the two storage cabinets are used to hold resin and cleaning liquid respectively, and two small two-way pumps are arranged on one side of each storage cabinet, and the small two-way pumps are respectively connected with the material port and the storage cabinet through connecting pipes; sealing components for blocking the material port are respectively installed at the four corners of the material trough; a protective cover is fixedly installed on the top surface of the mounting seat, and a purification and deodorization device for adsorbing and degrading odorous gases is installed on the inner wall of the protective cover, and the purification and deodorization device comprises a drainage adsorption component and an atomization purification component.

[0008] Furthermore, semicircular positioning grooves are respectively provided at both ends of the material trough, screw holes corresponding to the positioning grooves are provided on the mounting seat, fasteners for locking the material trough are installed in the screw holes, and a liquid level sensor is installed in the material trough; a cleaning plate is provided in the material trough, and the cleaning plate includes a scraper plate, and sliding plates are fixedly connected at both ends of the scraper plate, and sliding grooves for sliding of the sliding plates are respectively provided on both sides of the top of the material trough, and an installation groove for installing the screw drive assembly is provided at one end of the material trough.

[0009] Furthermore, the screw drive assembly includes screws respectively installed in the two slide grooves, the two screws respectively penetrate the sliding plate and are connected by threads, synchronous wheels are fixedly installed on the two screws, and the two synchronous wheels are connected by synchronous belt transmission, and a driving motor is fixedly installed on the inner wall of the mounting groove by screws, and the output end of the driving motor is fixedly connected to one end of one of the screws.

[0010] Furthermore, the material inlet includes a first material hole opened on the bottom surface of the cleaning trough, a buffer chamber is opened below the first material hole, and the bottom surface of the buffer chamber is set to be a downward inclined surface to increase the flow rate; a second material hole is opened on the inclined bottom surface of the buffer chamber and passes through the bottom surface of the material trough, the first material hole and the second material hole are not on the same vertical line and are separated by a certain distance, and the small bidirectional pump is connected to the second material hole through a connecting pipe to collect and add materials; the sealing assembly includes electric push rods respectively installed at the four corners of the material trough, and one end of the telescopic rod of the electric push rod is fixedly equipped with a sealing plug for sealing the first material hole.

[0011] Furthermore, the drainage adsorption assembly includes four air suction boxes evenly distributed and installed on the inner wall of the protective cover, each of the air suction boxes is provided with a plurality of air holes, and an activated carbon bag is placed in each of the air suction boxes, and a gas gathering box is provided in the protective cover, and the four air suction boxes are respectively connected to the gas gathering box through air pipes, and an air pump is provided on one side of the gas gathering box, and the air suction end of the air suction pump is connected to the gas gathering box, and the exhaust end of the air suction pump is connected to a buffer body for buffering gas, an air containing cavity is provided inside the buffer body, and a raised buffer sponge is provided on the inner bottom surface of the air containing cavity, and a plurality of through-going air diffusion holes are evenly and equidistantly provided on the outer wall of the buffer body, and the top of the buffer body is fixedly connected to the exhaust pipe of the air suction pump by threads.

[0012] Furthermore, the atomization purification component includes a conical purification container, the top of the purification container is fixedly connected to the exhaust pipe of the vacuum pump by means of threads, a micro air pump is arranged on one side of the purification container, one side of the micro air pump is connected to a liquid buffer box by means of an air pressure pipe, a storage tank is arranged above the liquid buffer box by means of a liquid pipe, a solution for degrading odor is contained in the storage tank, a shut-off valve is arranged on the liquid pipe, an atomizing nozzle is connected to one side of the liquid buffer box, the atomizing nozzle is connected and installed in the purification container to degrade and purify odorous gases, and a liquid collecting tank for containing degraded solution is arranged below the purification container.

[0013] Furthermore, the two storage cabinets are respectively a cleaning liquid storage cabinet and a resin storage cabinet. A heating box is provided in the resin storage cabinet. The heating box includes an outer shell, an inner liner made of metal material for storing resin is wrapped in the outer shell, a heating wire plate is provided between the inner liner and the outer shell, a temperature sensor is provided on the side wall of the heating box, and the two small bidirectional pumps on one side of the resin storage cabinet are connected to the heating box through connecting pipes respectively.

[0014] Furthermore, exhaust fans are installed on both sides of the top surface of the mounting seat, and placement bins for placing the storage tank and the liquid collecting tank are respectively opened on the back of the protective cover. The placement bins are equipped with bin doors, and the two storage cabinets are respectively provided with cabinet doors; a sealing cover that cooperates with the protective cover for sealing is provided on the mounting seat, and a notch is opened on the top surface of the protective cover, and the top of the sealing cover is embedded in the notch.

[0015] Furthermore, a control panel is arranged on the front of the chassis, and the lifting mechanism, the small bidirectional pump, the liquid level sensor, the drive motor, the electric push rod, the vacuum pump, the micro air pump, the shut-off valve member, the heating box, the temperature sensor and the exhaust fan are all electrically connected to the control panel.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. After printing, by starting the automatic cleaning mechanism, the 3D printer can use a small two-way pump to recycle the unused resin, then inject cleaning liquid into the material tank and use the screw drive mechanism to make the cleaning plate reciprocate in the tank to clean the material tank, thereby keeping the material tank clean and improving the printing quality and efficiency; in addition, when the resin is insufficient during the printing process, the small two-way pump can also be used to add resin to the material tank to ensure the continuity of printing and improve the printing effect;

[0018] 2. A purification and deodorization device is installed on the protective cover, which includes a drainage adsorption component and an atomization purification component. The two are used together to purify the odorous gas twice, and the waste liquid after atomization purification is collected and processed. Thus, the odorous gas discharged in a centralized manner can be processed through the purification and deodorization device, and the toxic and harmful substances in the degraded gas can be absorbed and degraded. At the same time, the odor of the odorous gas can be purified to reduce its harmfulness, create a safe and comfortable working environment, effectively protect the health of the operators, and at the same time, prevent the toxic and harmful odorous gas from floating in the air and polluting the ecological environment;

[0019] 3. The purification and deodorization device is set on the protective cover and forms an integrated structure with the 3D printer, thus ensuring the refreshing shape of the overall appearance; in addition, the suction pump is used in the drainage adsorption component, which can provide a higher negative pressure and control the flow direction and speed of the odorous gas, thereby improving the purification efficiency;

[0020] 4. The resin storage cabinet is equipped with a heating box and a temperature sensor, which can accurately control the temperature of the resin. When the external ambient temperature is low, the fluidity of the resin during printing is guaranteed, thus ensuring the material quality and printing effect;

[0021] 5. There is a storage compartment on the back of the protective cover, which is convenient for users to store storage tanks and liquid collection tanks, improving operational convenience and working comfort; at the same time, the control panel integrates the control of various functions, making the operation simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 is a schematic diagram of the automatic cleaning mechanism of the present invention;

[0024] Figure 3 for Figure 2 Sectional view of AA in the middle;

[0025] Figure 4 is a schematic diagram of the automatic cleaning mechanism of the present invention;

[0026] Figure 5 is a schematic diagram of the screw drive mechanism in the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the material trough in the present invention;

[0028] Figure 7 for Figure 6 Cross-sectional view of the middle BB;

[0029] Figure 8 is a schematic diagram of a purification and deodorization device in the present invention;

[0030] Fig. 9 An exploded view of the purification and deodorization device of the present invention;

[0031] Fig.10 It is a cross-sectional view of the atomization purification component in the present invention;

[0032] Fig.11 is a schematic diagram of a buffer body in the present invention;

[0033] Fig.12 for Fig.11 Cross-sectional view of CC;

[0034] Fig.13 is a cross-sectional view of the heating box in the present invention;

[0035] Fig.14 It is a schematic diagram of the present invention.

[0036] In the figure: 1-chassis, 2-mounting seat, 3-material trough, 4-automatic cleaning mechanism, 5-storage cabinet, 6-small two-way pump, 7-sealing assembly, 8-protective cover, 9-purification and deodorization device, 10-fastener, 11-liquid level sensor, 12-heating box, 13-exhaust fan, 14-placement bin, 15-bin door, 16-cabinet door, 17-sealing cover, 18-control panel;

[0037] 31-tank body, 32-transparent film, 33-cleaning tank, 34-material opening, 35-positioning tank, 36-sliding tank, 37-installing tank, 341-first material hole, 342-slow material cavity, 343-second material hole;

[0038] 41-screw drive assembly, 42-cleaning plate, 411-screw, 412-synchronous wheel, 413-synchronous belt, 414-drive motor, 421-scraper plate, 422-sliding sheet;

[0039] 51-cleaning liquid storage cabinet, 52-resin storage cabinet, 71-electric push rod, 72-sealing plug, 81-notch;

[0040] 91- drainage adsorption component, 92- atomization purification component, 911- air suction box, 912- activated carbon bag, 913- gas gathering box, 914- air pipe, 915- air pump, 916- buffer body, 921- purification container, 922- micro air pump, 923- liquid buffer box, 924- storage tank, 925- shut-off valve, 926- atomization nozzle, 927- liquid collection tank, 9111- air vent, 9161- air chamber, 9162- buffer sponge, 9163- air diffusion hole;

[0041] 121 - shell, 122 - liner, 123 - heating wire plate, 124 - temperature sensor. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0044] Combination Figures 1 to 14 A 3D printer with automatic trough cleaning and automatic odor removal functions shown in the figure comprises a chassis 1, a mounting seat 2 is mounted on the top of the chassis 1, a lifting mechanism is mounted on the mounting seat 2, a printing platform assembly is connected to the lifting mechanism, a trough 3 is mounted on the top surface of the mounting seat 2, the trough 3 comprises a trough body 31, a transparent film 32 for transmitting light for curing is provided in the middle part of the trough body 31, cleaning grooves 33 lower than the plane of the transparent film 32 are respectively provided on both sides of the transparent film 32, and material ports 34 for feeding and discharging materials are provided at both ends of the two cleaning grooves 33; an automatic cleaning mechanism 4 for reciprocatingly cleaning the trough 3 is mounted on the trough 3, the automatic cleaning mechanism 4 comprises a screw drive assembly 41, and a screw drive assembly 41 is provided on the screw drive assembly 41. A cleaning plate 42 is installed; storage cabinets 5 are installed on both sides of the bottom surface of the mounting seat 2, and the two storage cabinets 5 are used to hold resin and cleaning liquid respectively. Two small two-way pumps 6 are arranged on one side of each storage cabinet 5, and the small two-way pumps 6 are connected with the material port 34 and the storage cabinet 5 respectively through connecting pipes; sealing components 7 for blocking the material port 34 are installed at the four corners of the material trough 3; a protective cover 8 is fixedly installed on the top surface of the mounting seat 2, and a purification and deodorization device 9 for adsorbing and degrading odorous gases is installed on the inner side wall of the protective cover 8, and the purification and deodorization device 9 includes a drainage adsorption component 91 and an atomization purification component 92; wherein the two small two-way pumps 6 on one side of each storage cabinet 5 are fixedly installed on the storage cabinet 5 on the closer side by screws;

[0045] Reference Figures 2 to 6As shown, semicircular positioning grooves 35 are respectively provided at both ends of the material trough 3, and screw holes corresponding to the positioning grooves 35 are provided on the mounting seat 2, and fasteners 10 for locking the material trough 3 are installed in the screw holes, and a liquid level sensor 11 is installed in the material trough 3; a cleaning plate 42 is provided in the material trough 3, and the cleaning plate 42 includes a scraper plate 421, and both ends of the scraper plate 421 are fixedly connected to a sliding piece 422, and sliding grooves 36 for sliding the sliding piece 422 are respectively provided on both sides of the top of the material trough 3, and a mounting groove 37 for installing a screw drive assembly 41 is provided at one end of the material trough 3; when in use, the fastener 10 is close to the semicircular positioning groove 35 to lock the material trough 3 through the screw holes provided on the mounting seat 2, and the liquid level sensor 11 can monitor the liquid level in the material trough 3 in real time, helping the user The user can timely understand the material consumption situation and avoid printing interruption caused by insufficient materials; the scraper plate 421 on the cleaning plate 42 can scrape the transparent film 32 and the cleaning groove 33 respectively. The transparent film 32 is an important component in the light curing process. It needs to be carefully operated when cleaning it to ensure that its surface is not damaged. Therefore, the scraper plate 421 used to clean the transparent film 32 can be set with a soft cloth or sponge at the scraping edge in the middle to avoid scratching the film surface; in addition, because the plane of the transparent film 32 is higher than the cleaning grooves 33 on both sides, when the scraper plate 421 scrapes the resin on the transparent film 32, the liquid resin will flow into the cleaning grooves 33 on both sides, so that the efficiency of scraping the resin on the transparent film 32 is higher;

[0046] Reference Figure 4 and Figure 5 As shown, the screw drive assembly 41 includes screws 411 respectively installed in two slide grooves 36, the two screws 411 respectively penetrate the sliding sheet 422 and are connected by threads, and synchronous wheels 412 are fixedly installed on the two screws 411, and the two synchronous wheels 412 are connected by transmission through a synchronous belt 413. The inner wall of the mounting groove 37 is fixedly installed with a driving motor 414 by screws, and the output end of the driving motor 414 is fixedly connected to one end of one of the screws 411; when in use, through the operation of the control panel 18, the driving motor 414 is started to drive the screw 411 to rotate, and the screw 411 drives the synchronous wheel 412 thereon to rotate, and then the two screws 411 are driven to rotate together through the synchronous belt 413, thereby driving the cleaning plate 42 to reciprocate, and the resin in the material tank is recovered and cleaned;

[0047] Reference Figures 2 to 7As shown, the material port 34 includes a first material hole 341 opened on the inner bottom surface of the cleaning trough 33, and a buffer cavity 342 is opened below the first material hole 341. The bottom surface of the buffer cavity 342 is set as a downward inclined surface to increase the flow speed; a second material hole 343 is opened on the inclined bottom surface of the buffer cavity 342, which passes through the bottom surface of the material trough 3. The first material hole 341 and the second material hole 343 are not on the same vertical line and are separated by a certain distance. The small two-way pump 6 is connected to the second material hole 343 through a connecting pipe to collect and add materials; the sealing assembly 7 includes electric push rods 71 ​​respectively installed at the four corners of the material trough 3, and a sealing plug 72 for blocking the first material hole 341 is fixedly installed at one end of the telescopic rod of the electric push rod 71;

[0048] When the liquid level sensor 11 detects that the photosensitive resin in the material tank 3 is insufficient during printing, the two electric push rods 71 ​​on the same side of the resin storage cabinet 52 are first started to move the push rods upward so as to retract the sealing plug 72 and expose the two material ports 34. Then, the two small bidirectional pumps 6 on one side of the resin storage cabinet 52 are started to pump the photosensitive resin from the resin storage cabinet 52 into the material tank 3. During the pumping process, the resin first enters the buffer chamber 342 from the second material hole 343, and then enters the material tank 3 through the first material hole 341. When entering the buffer chamber 342 from the second material hole 343, the top surface of the buffer chamber 342 acts as a buffer for the pumped resin, so that the resin will not be splashed around the material tank 3 too quickly. During the process of pumping the resin, the liquid level sensor 11 is used for monitoring. When the resin is added to a certain position, the transportation can be stopped, and the two electric push rods 71 ​​are started to block the two material ports 34.

[0049] When the printing is finished and the material tank 3 needs to be cleaned, first start the two electric push rods 71 ​​on the same side of the resin storage cabinet 52 to move the push rods upward to retract the sealing plug 72 to expose the two material ports 34, and then start the two small two-way pumps 6 on one side of the resin storage cabinet 52 to extract the remaining resin in the material tank 3 and recycle it into the resin storage cabinet 52. On the one hand, the resin storage cabinet 52 can hold a whole bottle of photosensitive resin, and the resin will be recovered into the bottle through the connecting pipe. On the other hand, the storage cabinet 5 is provided with a holding cavity for accommodating the resin, so that it can hold Recycled resin; during the recycling process, the residual material first enters the buffer chamber 342 through the first material hole 341, and then is recycled through the second material hole 343. Since the bottom surface of the buffer chamber 342 is set as a downward inclined surface, the flow speed of the residual material is increased; due to the high density of the resin, some resin will adhere to the transparent film 32 and the cleaning groove 33, so the automatic cleaning mechanism 4 can be used to start the driving motor 414 to drive the cleaning plate 42 to reciprocate and scrape the transparent film 32 and the cleaning groove 33, so that the residual material is recycled through the two material ports 34;

[0050] When cleaning the material trough 3, first start the two electric push rods 71 ​​on one side of the cleaning liquid storage cabinet 51 to move the push rods upward so as to retract the sealing plugs 72 and expose the two material ports 34. Then start the two small bidirectional pumps 6 on one side of the cleaning liquid storage cabinet 51 to pump the cleaning liquid into the material trough 3. In the process of pumping the cleaning liquid, the cleaning liquid first enters the buffer chamber 342 from the second material hole 343, and then enters the material trough 3 through the first material hole 341. When entering the buffer chamber 342 from the second material hole 343, the top surface of the buffer chamber 342 acts as a buffer for the pumped cleaning liquid, so that the cleaning liquid does not splash around the material trough 3. In the process of pumping the cleaning liquid, the liquid level sensor 11 is used for monitoring. When the cleaning liquid overflows the transparent film 32, the pumping is stopped to block the material port 34. Then start The dynamic driving motor 414 drives the cleaning plate 42 to slowly clean the transparent film 32 and the cleaning tank 33. After cleaning, the two material ports 34 on one side of the cleaning liquid storage cabinet 51 are opened and the small bidirectional pump 6 is started to recover the cleaning liquid. On the one hand, barreled cleaning liquid can be placed in the cleaning liquid storage cabinet 51, and the cleaning liquid will be recovered into the barrel through the connecting pipe. On the other hand, a accommodating cavity for accommodating the cleaning liquid is provided in the cleaning liquid storage cabinet 51, so that the recovered cleaning liquid can be contained. In addition, the cleaning liquid can be a high-concentration alcohol, such as isopropyl alcohol. Isopropyl alcohol is one of the most common cleaning liquids and is particularly suitable for removing photocurable resins. It can quickly dissolve the resin and remove it. Isopropyl alcohol is volatile, so ventilation should be paid attention to when using it. Therefore, two exhaust fans 13 can be turned on for ventilation during cleaning.

[0051] Reference Figures 8 to 12As shown, the drainage adsorption assembly 91 includes four air suction boxes 911 evenly distributed and installed on the inner wall of the protective cover 8, each of the air suction boxes 911 is provided with a plurality of air holes 9111, and an activated carbon bag 912 is placed in each of the air suction boxes 911, and a gas collection box 913 is provided in the protective cover 8, and the four air suction boxes 911 are connected to the gas collection box 913 through air pipes 914 respectively, and an air pump 915 is provided on one side of the gas collection box 913, and the air suction end of the air pump 915 is connected to the gas collection box 913, and the air pump The exhaust end of 915 is connected to a buffer body 916 for buffering gas, and an air chamber 9161 is provided inside the buffer body 916. A raised buffer sponge 9162 is provided on the inner bottom surface of the air chamber 9161. A plurality of through-holes 9163 are evenly provided at equal distances on the outer wall of the buffer body 916. The top of the buffer body 916 is fixedly connected to the exhaust pipe of the air pump 915 by a thread. When in use, the air pump 915 and the two exhaust fans 13 are started by operating the control panel 18. The exhaust fans 13 Blowing air upward, the vacuum pump 915 extracts the odorous gas, and the gas first enters the air suction box 911 through the air vent 9111, and then the activated carbon bag 912 in the air suction box 911 will absorb the toxic and harmful substances in the odorous gas, and can also absorb the odor in the odorous gas, and perform the first purification treatment on the odorous gas, and then the gas will enter the gas collection box 913 along the air pipe 914, and then the vacuum pump 915 will suck it in and discharge it into the air holding cavity 9161 of the buffer body 916, wherein the raised buffer sponge 9162 in the buffer body 916 can buffer the gas rushing out directly, and the buffer sponge 9162 can be made of sponge. When the gas impacts the sponge surface, the porous structure of the sponge can absorb part of the impact energy. This energy absorption effect helps to slow down the speed of gas flow and reduce the impact on the surrounding environment. Sound-absorbing foam can also be used to reduce the noise generated by gas impact; then the gas diffuses and is discharged into the purification container 921 through multiple diffused holes 9163 for the next purification;

[0052] Reference Figures 8 to 10As shown, the atomization purification component 92 includes a conical purification container 921, the top of the purification container 921 is fixedly connected to the exhaust pipe of the vacuum pump 915 by a thread, a micro air pump 922 is arranged on one side of the purification container 921, one side of the micro air pump 922 is connected to a liquid buffer box 923 through an air pressure pipeline, a storage tank 924 is arranged above the liquid buffer box 923 through a liquid pipeline, a solution for degrading odor is contained in the storage tank 924, a shut-off valve 925 is arranged on the liquid pipeline, an atomization nozzle 926 is connected to one side of the liquid buffer box 923, the atomization nozzle 926 is connected and installed in the purification container 921 to degrade and purify the odorous gas, and a liquid collecting tank 927 for containing the degraded solution is arranged below the purification container 921; when in use, the gas is dispersed into the purification container through the buffer body 916 In the purification container 921, the shut-off valve 925 is opened to allow the purified solution in the storage tank 924 to flow into the liquid buffer box 923, and then the micro air pump 922 is started to atomize the purified solution in the liquid buffer box 923 through the atomizing nozzle 926, and then the atomized purified solution degrades the toxic and harmful substances in the odorous gas, so that the toxic and harmful substances in the odorous gas are dissolved in the atomized solution, thereby performing a second purification and deodorization treatment on the odorous gas, and then the atomized solution fused with the odorous gas will adhere to the inner wall of the purification container 921, and as the solution increases, the solution will flow downward from the inclined inner wall, and thus enter the liquid collecting tank 927 below, for centralized treatment, thereby reducing pollution to the external environment; wherein, the atomized solution can be a solution containing an oxidant or a disinfectant, such as hydrogen peroxide or alcohol;

[0053] Reference Figure 4 and Fig.13 As shown, the two storage cabinets 5 are respectively a cleaning liquid storage cabinet 51 and a resin storage cabinet 52. A heating box 12 is arranged in the resin storage cabinet 52. The heating box 12 comprises an outer shell 121. The outer shell 121 contains a metal liner 122 for storing resin. A heating wire plate 123 is arranged between the liner 122 and the outer shell 121. A temperature sensor 124 is arranged on the side wall of the heating box 12. Two small two-way pumps 6 on one side of the resin storage cabinet 52 are connected to the heating box 12 through connecting pipes. In an environment where the external temperature is relatively low, the resin can be poured into the heating box 12, and the resin in the liner 122 is heated by the heating wire plate 123, and then the resin in the heating box 12 is pumped into the material tank 3 by the small two-way pump 6.

[0054] Reference Figure 2 and Fig.14As shown, exhaust fans 13 are respectively installed on both sides of the top surface of the mounting base 2, and storage bins 14 for placing the storage tank 924 and the liquid collecting tank 927 are respectively provided on the back of the protective cover 8. The storage bins 14 are both provided with bin doors 15, and the two storage cabinets 5 are respectively provided with cabinet doors 16; a sealing cover 17 that cooperates with the protective cover 8 to seal is detachably provided on the mounting base 2, and a notch 81 is provided on the top surface of the protective cover 8, and the top of the sealing cover 17 is embedded in the notch 81; when in use, the storage tank 924 placed therein can be added with a purification solution by opening the bin door 15 of the placement bin 14, and the odorous wastewater in the liquid collecting tank 927 can also be discharged and processed, and the embedded cooperation of the sealing cover 17 and the protective cover 8 enables the printer to seal toxic and harmful odorous gases therein when it is in operation, thereby reducing the diffusion of odorous gases;

[0055] A control panel 18 is provided on the front of the chassis 1, and the lifting mechanism, the small two-way pump 6, the liquid level sensor 11, the drive motor 414, the electric push rod 71, the vacuum pump 915, the micro air pump 922, the shut-off valve member 925, the heating box 12, the temperature sensor 124 and the exhaust fan 13 are all electrically connected to the control panel 18; the control panel integrates the control of various functions, and can monitor and adjust the operating status of the entire system to realize the required automatic control functions, thereby improving the operating efficiency of the 3D printer.

[0056] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0057] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A 3D printer with automatic trough cleaning and automatic odor removal functions, comprising a chassis (1), a mounting seat (2) being mounted on the top of the chassis (1), a lifting mechanism being mounted on the mounting seat (2), a printing platform assembly being connected to the lifting mechanism, characterized in that: A material trough (3) is mounted on the top surface of the mounting seat (2), the material trough (3) comprising a trough body (31), a transparent film (32) for transmitting light for curing is provided in the middle portion of the trough body (31), cleaning troughs (33) are provided on both sides of the transparent film (32) and are lower than the plane of the transparent film (32), and material ports (34) for feeding and discharging materials are provided at both ends of the two cleaning troughs (33); an automatic cleaning mechanism (4) for reciprocatingly cleaning the material trough (3) is mounted on the material trough (3), the automatic cleaning mechanism (4) comprising a screw drive assembly (41), a cleaning plate (42) being mounted on the screw drive assembly (41); the bottom of the mounting seat (2) is provided with a plurality of cleaning slots (33) each having a plurality of cleaning slots (33) and a plurality of cleaning slots (34) for feeding and discharging materials. Storage cabinets (5) are respectively installed on both sides of the surface, and the two storage cabinets (5) are used to store resin and cleaning liquid respectively. Two small two-way pumps (6) are arranged on one side of each storage cabinet (5), and the small two-way pumps (6) are respectively connected to the material port (34) and the storage cabinet (5) through connecting pipes; sealing components (7) for blocking the material port (34) are respectively installed at the four corners of the material trough (3); a protective cover (8) is fixedly installed on the top surface of the mounting seat (2), and a purification and deodorization device (9) for absorbing and degrading odorous gases is installed on the inner side wall of the protective cover (8), and the purification and deodorization device (9) comprises a drainage adsorption component (91) and an atomization purification component (92); The material inlet (34) comprises a first material hole (341) provided on the inner bottom surface of the cleaning trough (33); a buffer chamber (342) is provided below the first material hole (341); the bottom surface of the buffer chamber (342) is arranged as a downwardly inclined surface to increase the flow velocity; a second material hole (343) is provided on the inclined bottom surface of the buffer chamber (342) and passes through the bottom surface of the material trough (3); the first material hole (341) and the second material hole (343) are not on the same vertical line and are spaced a certain distance apart; the small bidirectional pump (6) is connected to the second material hole (343) via a connecting pipe to receive and add material; the sealing assembly (7) comprises electric push rods (71) respectively installed at the four corners of the material trough (3); a sealing plug (72) for sealing the first material hole (341) is fixedly installed on one end of the telescopic rod of the electric push rod (71).

2. The 3D printer with automatic trough cleaning and odor removal functions according to claim 1, characterized in that: Semicircular positioning grooves (35) are respectively provided at both ends of the material trough (3); screw holes corresponding to the positioning grooves (35) are provided on the mounting seat (2); fasteners (10) for locking the material trough (3) are installed in the screw holes; a liquid level sensor (11) is installed in the material trough (3); a cleaning plate (42) is provided in the material trough (3); the cleaning plate (42) includes a scraper plate (421); both ends of the scraper plate (421) are fixedly connected to a sliding sheet (422); sliding grooves (36) for sliding the sliding sheet (422) are respectively provided on both sides of the top of the material trough (3); and a mounting groove (37) for mounting the screw drive assembly (41) is provided at one end of the material trough (3).

3. The 3D printer with automatic trough cleaning and odor removal functions according to claim 2, characterized in that: The screw drive assembly (41) comprises screws (411) respectively mounted in the two slide grooves (36), the two screws (411) respectively penetrate the sliding sheet (422) and are connected by threads, a synchronous wheel (412) is fixedly mounted on the two screws (411), the two synchronous wheels (412) are connected by a synchronous belt (413), a driving motor (414) is fixedly mounted on the inner wall of the mounting groove (37) by screws, and an output end of the driving motor (414) is fixedly connected to one end of one of the screws (411).

4. The 3D printer with automatic trough cleaning and automatic odor removal functions according to claim 3, characterized in that: The drainage adsorption component (91) comprises four air suction boxes (911) evenly distributed and installed on the inner wall of the protective cover (8), each of the air suction boxes (911) is provided with a plurality of air holes (9111), and an activated carbon bag (912) is placed in each of the air suction boxes (911). A gas collection box (913) is provided in the protective cover (8), and the four air suction boxes (911) are connected to the gas collection box (913) via air pipes (914) respectively. An air pump (915) is provided on one side of the gas collection box (913), and the air pump The suction end of (915) is connected to the gas collecting box (913), and the exhaust end of the vacuum pump (915) is connected to a buffer body (916) for buffering gas. An air containing cavity (9161) is provided inside the buffer body (916), and a raised buffer sponge (9162) is provided on the inner bottom surface of the air containing cavity (9161). A plurality of through-holes (9163) are evenly and evenly provided on the outer wall of the buffer body (916), and the top of the buffer body (916) is fixedly connected to the exhaust pipe of the vacuum pump (915) by means of threads.

5. The 3D printer with automatic trough cleaning and odor removal functions according to claim 4, characterized in that: The atomization purification component (92) comprises a conical purification container (921), the top of the purification container (921) being fixedly connected to the exhaust pipe of the air pump (915) by means of a thread, a micro air pump (922) being arranged on one side of the purification container (921), one side of the micro air pump (922) being connected to a liquid buffer box (923) by means of an air pressure pipeline, a storage tank (924) being arranged above the liquid buffer box (923) by means of a liquid pipeline, a solution for degrading odor being contained in the storage tank (924), a shut-off valve (925) being arranged on the liquid pipeline, an atomization nozzle (926) being connected to one side of the liquid buffer box (923), the atomization nozzle (926) being connected and installed in the purification container (921) to degrade and purify odorous gas, and a liquid collecting tank (927) for containing degraded solution being arranged below the purification container (921).

6. The 3D printer with automatic trough cleaning and odor removal functions according to claim 5, characterized in that: The two storage cabinets (5) are respectively a cleaning liquid storage cabinet (51) and a resin storage cabinet (52). A heating box (12) is provided inside the resin storage cabinet (52). The heating box (12) comprises an outer shell (121). An inner liner (122) made of metal material for storing resin is enclosed inside the outer shell (121). A heating wire plate (123) is provided between the inner liner (122) and the outer shell (121). A temperature sensor (124) is provided on the side wall of the heating box (12). The two small bidirectional pumps (6) on one side of the resin storage cabinet (52) are connected to the heating box (12) via connecting pipes.

7. The 3D printer with automatic trough cleaning and automatic odor removal functions according to claim 6, characterized in that: Exhaust fans (13) are respectively installed on both sides of the top surface of the mounting seat (2); the back of the protective cover (8) is provided with a placement bin (14) for placing the storage tank (924) and the liquid collecting tank (927); the placement bin (14) is provided with a bin door (15); the two storage cabinets (5) are respectively provided with a cabinet door (16); the mounting seat (2) is provided with a sealing cover (17) that cooperates with the protective cover (8) for sealing; the top surface of the protective cover (8) is provided with a notch (81), and the top of the sealing cover (17) is embedded in the notch (81).

8. The 3D printer with automatic trough cleaning and odor removal functions according to claim 7, characterized in that: A control panel (18) is arranged on the front of the chassis (1); the lifting mechanism, the small bidirectional pump (6), the liquid level sensor (11), the drive motor (414), the electric push rod (71), the vacuum pump (915), the micro air pump (922), the shut-off valve (925), the heating box (12), the temperature sensor (124) and the exhaust fan (13) are all electrically connected to the control panel (18).

Images