Multi-material micro-jet 3D printer

Abstract

The invention discloses a multi-material micro-jet 3D printer, and relates to the technical field of printers, the multi-material micro-jet 3D printer comprises a printer, cooling mechanisms are arranged on the side surface and in the printer, a cleaning assembly is arranged in the printer, and the printer comprises an outer shell. Cooling in the cooling box is pumped out through cooperation of the circulating pump and the input pipe, input is conducted through the input pipe, then threaded conveying is conducted through the winding type cooling pipe, cooling surrounds the printing spray head, heat is taken away, the cooling circulates into the circulating pump through the communicating pipe, the circulating pump communicates with the upper backflow pipe, and then the cooling is input into the cooling box; the spiral pipeline is in a spiral shape, the contact area between the spiral pipeline and the cooling liquid is increased, when the cooling liquid circulates around the spiral pipeline, more pipeline surfaces can participate in the heat exchange process, the spiral shape can enable the contact area between the pipeline and the cooling liquid to be increased by several times, and therefore heat generated by the spray head is absorbed more effectively.

Description

Technical Field

[0001] The present invention relates to the technical field of printers, in particular to a multi-material micro-jet 3D printer. Background Art

[0002] A 3D printer, also known as a three-dimensional printer, is a machine that uses cumulative manufacturing technology (i.e. rapid prototyping technology). Its principle is to put data and raw materials into the 3D printer, and the machine builds the product layer by layer according to the program.

[0003] In the prior art, such as the Chinese patent number: CN201911147648.0, "A multi-material 3D printer", includes a frame, a base plate, a Z-axis translation mechanism, a printing platform, a diagonal pull mechanism, a mounting plate and at least two material holding mechanisms; the base plate is fixedly mounted on the frame; the Z-axis translation mechanism is supported on the base plate and can move relative to the base plate; an optical machine is installed on the Z-axis translation mechanism, and the optical machine can move to the bottom of any material holding mechanism with the Z-axis translation mechanism; the printing platform is installed on the Z-axis translation mechanism, which can be lifted up and down and moved horizontally; the bottom end of the diagonal pull mechanism is installed on the base plate, and the top end is connected to the mounting plate, which can drive the mounting plate to flip; the material holding mechanisms are arranged side by side on the mounting plate; the printing platform can be translated to the top of each material holding mechanism along the arrangement direction of the material holding mechanism, so as to realize multi-material printing by using different printing materials in each material holding mechanism.

[0004] In the existing multi-material micro-jet 3D printer, the material flow inside the nozzle and the relative movement between the nozzle and the printing material will generate friction during the printing process. The excessively high nozzle temperature will change the viscosity and fluidity of the material, thereby causing the problem of poor printing quality. To solve the above problems, a multi-material micro-jet 3D printer is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a multi-material micro-jet 3D printer to solve the problem that the material flow inside the nozzle and the relative movement between the nozzle and the printing material during the printing process of the multi-material micro-jet 3D printer will generate friction, and the excessively high nozzle temperature will change the viscosity and fluidity of the material, thereby causing the problem of poor printing quality.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multi-material micro-jet 3D printer, comprising a printer, a cooling mechanism is arranged on the side and inside of the printer, a cleaning component is arranged inside the printer, the printer comprises an outer shell, a multi-material print box is arranged inside the outer shell, a feed pipe is fixedly connected to the front of the outer shell, a print head is fixedly connected to one end of the feed pipe, the multi-material print box is arranged inside the outer shell, a plurality of different raw material interfaces can be connected inside the multi-material print box, and different raw materials can be conveniently input for printing preparation, the feed pipe connects the multi-material print box and the print head, thereby facilitating printing; The cooling mechanism includes a cooling box, the bottom of the cooling box is fixedly connected to an input pipe, one end of the input pipe is fixedly connected to a winding cooling pipe, the winding cooling pipe is wound around the outside of the print nozzle, one end of the winding cooling pipe is fixedly connected to a connecting pipe, one end of the connecting pipe is fixedly connected to a circulation pump, one end of the circulation pump is fixedly connected to a return pipe, one end of the return pipe is fixedly connected to the top of the cooling box, a mounting frame is fixedly installed on the outside of the print nozzle, a plurality of heat dissipation fans are evenly distributed on one side of the mounting frame, the heat dissipation fans are evenly distributed vertically on the sides of the print nozzle, and the outside of the heat dissipation fans A fan cover is provided, and an injection port is provided on the top of the cooling box. The cooling liquid is stored inside the cooling box. The cooling liquid is started by the circulating pump. The input pipe is connected to and connected to the winding cooling pipe. One end of the winding cooling pipe is connected to the upper circulating pump through the connecting pipe. The circulating pump is also connected to the top of the cooling box through the return pipe, so that the cooling inside the cooling box is conveniently extracted by the circulating pump in conjunction with the input pipe, input through the input pipe, and then conveyed through the thread of the winding cooling pipe, so that the cooling is surrounded on the print nozzle, the heat is taken away, and then circulated into the circulating pump through the connecting pipe, and connected to the upper return pipe through the circulating pump and then input into the interior of the cooling box, thereby realizing the cooling cycle. The spiral pipe has a spiral shape. Compared with a straight pipe, it can greatly increase the contact area with the coolant in a limited space. When the coolant circulates around the spiral pipe, more pipe surfaces can participate in the heat exchange process. For a given length of pipe, the spiral shape can increase the contact area between the pipe and the coolant by several times, thereby more effectively absorbing the heat generated by the nozzle. This increased heat exchange area is conducive to reducing the temperature of the nozzle, especially when the nozzle works for a long time and causes serious heating, the heat can be transferred out in time to prevent the nozzle temperature from being too high. The structure of the spiral pipe makes the flow path of the coolant around the pipe longer. Since the coolant stays around the pipe for a longer time, it has more opportunities to absorb the heat of the nozzle. The spiral structure of the spiral pipe interferes with the flow of the coolant and causes turbulence of the coolant around the pipe. In the turbulent state, the temperature gradient inside the coolant is reduced, and the heat can diffuse faster in the coolant. This turbulent effect can prevent the coolant from forming temperature stratification near the surface of the pipe, that is, avoid the situation where the temperature of the outer layer coolant is low and the temperature of the inner layer coolant is high, thereby ensuring that the entire coolant can effectively participate in heat exchange and improve the cooling efficiency. This is conducive to ensuring the cooling effect, so that the nozzle can evenly spray the printing material and achieve the effect of high-quality printing.

[0007] Preferably, the cleaning assembly includes a cleaning motor, the top of the cleaning motor is connected to a rotating shaft, and a plurality of cleaning brushes are evenly distributed on the outer wall of the rotating shaft. The connecting plate is manually rotated to align the rotating shaft with the bottom of the print head, and then the rotating shaft and the cleaning brush are inserted into the interior of the print head by contracting the rotating shaft.

[0008] Preferably, a connecting plate is provided on the top of the cleaning motor, and the connecting plate movably passes through the inner side of the connecting plate. A transfer shaft is provided at one end of the connecting plate, and the connecting plate facilitates connection and installation, and rotation adjustment is facilitated by the transfer shaft.

[0009] Preferably, an electric lifting rod is provided at the top of the adapter shaft, and the top of the electric lifting rod is connected to the bottom of the mounting frame. The electric lifting rod provides a lifting and adjusting function, thereby achieving complete cleaning work.

[0010] Preferably, the front of the outer shell is movably equipped with an equipment pull-up door and an equipment front door, the equipment front door is arranged below the equipment pull-up door, and an indicator light is fixedly installed on the top of the outer shell. Opening and closing the equipment pull-up door facilitates the placement of trays or the removal of materials, providing convenient operation. The equipment front door facilitates the inspection and maintenance of the equipment, and the indicator light can provide a warning at the top, making it easy to check the working status of the equipment.

[0011] Preferably, an emergency stop button, a key switch, a servo button, a laser button, a USB interface, a door lock button and a lighting button are provided on the front of the outer shell; the key switch is arranged below the emergency stop button, the servo button is arranged below the key switch, the laser button is arranged below the servo button, the USB interface is arranged below the laser button, the door lock button is arranged below the USB interface, and the lighting button is arranged below the door lock button; the emergency stop button, the key switch, the servo button, the laser button, the door lock button and the lighting button facilitate control switch operation of the equipment, and the USB interface facilitates access to the equipment for multi-function operation.

[0012] Preferably, a display and a keyboard are fixedly mounted on one side of the outer shell, and the keyboard is arranged below the display, so that the display facilitates the display of work information, and the keyboard facilitates the provision of further processing and control.

[0013] Preferably, an adjustment frame is provided on the inner side of the outer shell, and adjustment slots are symmetrically opened on the inner side of the adjustment frame. A longitudinal movement motor is provided at one end of the adjustment frame, and the output end of the longitudinal movement motor is connected to a longitudinal movement screw rod, and the longitudinal movement screw rod is arranged on the inner side of a single adjustment slot. The adjustment frame is arranged inside the outer shell and is provided with an adjustment slot. The adjustment frame is slidably installed into the inner wall of the adjustment slot and is threadedly connected with the longitudinal movement screw rod. The longitudinal movement screw rod is driven to rotate by the longitudinal movement motor, thereby realizing longitudinal movement.

[0014] Preferably, an adjustment frame is movably installed on the inner side of the adjustment slot, one end of the adjustment frame is threadedly connected to the longitudinal moving screw, a transverse moving motor is arranged on the inner side of the adjustment frame, the output end of the transverse moving motor is connected to the transverse moving screw, the transverse moving screw is arranged on the inner side of the adjustment frame, and the transverse moving motor is arranged on the inner side of the adjustment frame to drive the transverse moving screw to rotate.

[0015] Preferably, the outer side of the transverse screw is threadedly connected to a moving block, and a lifting cylinder is arranged at the bottom of the moving block. One end of the lifting cylinder is connected to one side of the print head, driving the transverse screw to rotate, thereby driving the moving block to achieve lateral movement, and further driving the lifting cylinder to achieve multi-directional movement. At the same time, the lifting cylinder can further drive the print head to achieve the function of lifting and lowering adjustment, thereby realizing printing work.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the cooling inside the cooling box is extracted through the circulation pump and the input pipe, input through the input pipe, and then conveyed through the winding cooling pipe thread, so that the cooling surrounds the printing nozzle, takes away the heat, and then circulates into the circulation pump through the connecting pipe, and is connected to the upper return pipe through the circulation pump and then input into the interior of the cooling box, thereby realizing the cooling cycle. The spiral pipe has a spiral shape. Compared with the straight pipe, it can greatly increase the contact area with the coolant in a limited space. When the coolant circulates around the spiral pipe, more pipe surfaces can participate in the heat exchange process. For a given length of pipe, the spiral shape can increase the contact area between the pipe and the coolant by several times, thereby more effectively absorbing the heat generated by the nozzle. This increased heat exchange area is conducive to reducing the temperature of the nozzle, especially when the nozzle works for a long time and causes severe heat generation. In heavy situations, the heat can be transferred out in time to prevent the nozzle temperature from being too high. The structure of the spiral pipe makes the flow path of the coolant around the pipe longer. Since the coolant stays around the pipe for a longer time, it has more opportunities to absorb the heat of the nozzle. The spiral structure of the spiral pipe will interfere with the flow of the coolant, causing the coolant to generate turbulence around the pipe. In the turbulent state, the temperature gradient inside the coolant is reduced, and the heat can diffuse faster in the coolant. This turbulent effect can prevent the coolant from forming temperature stratification near the surface of the pipe, that is, avoiding the situation where the temperature of the outer layer coolant is low and the temperature of the inner layer coolant is high, thereby ensuring that the entire coolant can effectively participate in heat exchange and improve the cooling efficiency, which is conducive to ensuring the cooling effect, so that the nozzle can evenly spray the printing material and achieve high-quality printing.

[0017] 2. In the present invention, the connecting plate is manually rotated to align the rotating shaft with the bottom of the print nozzle, and then the rotating shaft and the cleaning brush are inserted into the interior of the print nozzle by contracting the rotating shaft, and then the rotating shaft is driven to rotate by the cleaning motor to rotate the cleaning brush to clean the interior of the print nozzle. By cleaning the interior of the nozzle, these residual materials can be effectively removed to ensure that the nozzle channel is unobstructed. In an open printing environment, dust particles in the air can be easily sucked into the nozzle. Regular internal cleaning can detect and remove these foreign objects in time to avoid nozzle blockage. The cleaned nozzle can more accurately control the extrusion amount and extrusion speed of the material. When the internal channel of the nozzle is dry, the nozzle can be cleaned. When the nozzle is clean and tidy, the flow resistance of the printing material in the nozzle is stable, and the control system of the printer can accurately extrude the material according to the preset parameters. For example, when printing high-precision models, the nozzle can accurately extrude a small amount of material to ensure the uniform thickness of the printing layer and improve the dimensional accuracy and surface quality of the printed model. When printing models with gradient colors or combinations of materials with different performances, a clean nozzle can ensure that various materials are mixed and extruded in the correct proportions, so that the printed model meets expectations in terms of color transition and performance. Regular cleaning can remove these factors that may cause wear and corrosion and extend the service life of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of a multi-material microjet 3D printer of the present invention; Figure 2 This is a schematic structural diagram of a multi-material microjet 3D printer according to the present invention from another angle; Figure 3 This is a schematic diagram of the internal structure of a multi-material microjet 3D printer of the present invention; Figure 4 It is a partial structural schematic diagram of a multi-material micro-jet 3D printer of the present invention; Figure 5 It is a partial structural schematic diagram of a multi-material micro-jet 3D printer of the present invention; Figure 6 For the present invention Figure 4 A is an enlarged structural diagram; Figure 7 For the present invention Figure 5 The enlarged structural diagram at B in FIG. Figure 8 For the present invention Figure 5 The enlarged structural diagram at C in the figure.

[0019] In the figure: 1. Printer; 101. Outer shell; 102. Equipment pull-up door; 103. Equipment front door; 104. Indicator light; 105. Emergency stop button; 106. Key switch; 107. Display; 108. Servo button; 109. Laser button; 110. USB interface; 111. Door lock button; 112. Keyboard; 113. Lighting button; 114. Adjustment frame; 115. Adjustment slot; 116. Longitudinal motor; 117. Longitudinal screw rod; 118. Adjustment frame; 119. Transverse motor; 120. Transverse screw rod; 121. Move block; 122, lifting cylinder; 123, multi-material printing box; 124, feed pipe; 125, printing nozzle; 2, cooling mechanism; 201, cooling box; 202, injection port; 203, input pipe; 204, winding cooling pipe; 205, connecting pipe; 206, return pipe; 207, mounting frame; 208, circulation pump; 209, fan cover; 210, cooling fan; 3, cleaning component; 301, electric lifting rod; 302, adapter shaft; 303, connecting plate; 304, cleaning motor; 305, rotating shaft; 306, cleaning brush. DETAILED DESCRIPTION

[0020] 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 implementation regulations described 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. Example

[0021] like Figure 1-Figure 8 As shown, the present invention provides a technical solution: a multi-material micro-jet 3D printer, comprising a printer 1, a cooling mechanism 2 is arranged on the side and inside of the printer 1, a cleaning component 3 is arranged inside the printer 1, the printer 1 comprises an outer shell 101, a multi-material print box 123 is arranged inside the outer shell 101, a material delivery pipe 124 is fixedly connected to the front of the outer shell 101, and a print nozzle 125 is fixedly connected to one end of the material delivery pipe 124; The cooling mechanism 2 includes a cooling box 201, the bottom of which is fixedly connected with an input pipe 203, one end of which is fixedly connected with a winding cooling pipe 204, which is wound around the outside of the print head 125, one end of which is fixedly connected with a connecting pipe 205, one end of which is fixedly connected with a circulating pump 208, one end of which is fixedly connected with a return pipe 206, one end of which is fixedly connected to the top of the cooling box 201, a mounting frame 207 is fixedly installed on the outside of the print head 125, a plurality of heat dissipation fans 210 are evenly distributed on one side of the mounting frame 207, the heat dissipation fans 210 are evenly distributed vertically on the sides of the print head 125, a fan cover 209 is provided on the outside of the heat dissipation fan 210, and an injection port 202 is provided on the top of the cooling box 201.

[0022] In this embodiment, the multi-material print box 123 is arranged inside the outer shell 101. The interior of the multi-material print box 123 can be connected to multiple different raw material interfaces to facilitate the input of different raw materials for printing preparation. The feed pipe 124 connects the multi-material print box 123 and the print head 125, thereby facilitating printing.

[0023] The cooling box 201 stores cooling liquid inside, and starts working through the circulating pump 208. The input pipe 203 is connected to and connected to the winding cooling pipe 204. One end of the winding cooling pipe 204 is connected to the upper circulating pump 208 through the connecting pipe 205. The circulating pump 208 is also connected to the top of the cooling box 201 through the return pipe 206, so that it is convenient to extract the cooling inside the cooling box 201 through the circulating pump 208 in cooperation with the input pipe 203, input through the input pipe 203, and then convey through the spiral of the winding cooling pipe 204, so that the cooling is surrounded on the print nozzle 125, and the heat is taken away, and then circulated into the circulating pump 208 through the connecting pipe 205, and the upper return pipe 206 is connected through the circulating pump 208 and then input into the interior of the cooling box 201, thereby realizing the cooling cycle. The shape of the spiral pipe is spiral, and compared with the straight pipe, it can greatly increase the contact area with the cooling liquid in a limited space. When the cooling liquid circulates around the spiral pipe, more pipe surfaces can participate in the heat exchange process. For a given length of pipe, the spiral shape can increase the contact area between the pipe and the coolant several times, thereby more effectively absorbing the heat generated by the nozzle. This increased heat exchange area is conducive to reducing the temperature of the nozzle, especially when the nozzle is working for a long time and causing serious heating, so that the heat can be transferred out in time to prevent the nozzle temperature from being too high. The structure of the spiral pipe makes the flow path of the coolant around the pipe longer. Since the coolant stays around the pipe for a longer time, it has more opportunities to absorb the heat of the nozzle. The spiral structure of the spiral pipe interferes with the flow of the coolant and causes turbulence of the coolant around the pipe. In the turbulent state, the temperature gradient inside the coolant is reduced, and the heat can diffuse faster in the coolant. This turbulent effect can prevent the coolant from forming temperature stratification near the surface of the pipe, that is, avoiding the situation where the outer layer coolant temperature is low and the inner layer coolant temperature is high, thereby ensuring that the entire coolant can effectively participate in heat exchange and improve cooling efficiency. This is conducive to ensuring the cooling effect, so that the nozzle can spray the printing material evenly, and achieve the effect of high-quality printing. Example

[0024] like Figure 8 As shown, the cleaning component 3 includes a cleaning motor 304, the top of the cleaning motor 304 is connected to a rotating shaft 305, and a plurality of cleaning brushes 306 are evenly distributed on the outer wall of the rotating shaft 305. A connecting plate 303 is arranged on the top of the cleaning motor 304, and the connecting plate 303 is movable through the inner side of the connecting plate 303. A transfer shaft 302 is arranged at one end of the connecting plate 303, and an electric lifting rod 301 is arranged on the top of the transfer shaft 302. The top of the electric lifting rod 301 is connected to the bottom of the mounting frame 207.

[0025] In this embodiment, after printing is completed, the connecting plate 303 is manually rotated so that the rotating shaft 305 is aligned with the bottom of the print nozzle 125, and then the rotating shaft 305 is contracted so that the rotating shaft 305 and the cleaning brush 306 are inserted into the interior of the print nozzle 125, and then the cleaning motor 304 drives the rotating shaft 305 to rotate, so that the cleaning brush 306 rotates to clean the interior of the print nozzle 125. By cleaning the interior of the nozzle, these residual materials can be effectively removed to ensure that the nozzle channel is unobstructed. In an open printing environment, dust particles in the air are easily sucked into the nozzle. Regular internal cleaning can timely detect and remove these foreign objects to avoid nozzle blockage. The cleaned nozzle can more accurately control the extrusion amount and extrusion speed of the material. When the internal channel of the nozzle is clean and tidy, the flow resistance of the printing material in the nozzle is stable, and the control system of the printer can accurately extrude the material according to the preset parameters. For example, when printing a high-precision model, the nozzle can accurately extrude a trace amount of material, thereby ensuring that the thickness of the printed layer is uniform and improving the dimensional accuracy and surface quality of the printed model. When printing models with gradient colors or combinations of materials with different performance, a clean nozzle can ensure that the various materials are mixed and extruded in the correct proportions, so that the printed model meets expectations in terms of color transition and performance. Through regular cleaning, these factors that may cause wear and corrosion can be removed and the life of the nozzle can be extended. Cleaning the inside of the nozzle can restore the original performance of the nozzle, so that it can maintain a stable working condition during long-term use. Example

[0026] like Figure 1-Figure 7As shown, the front of the outer shell 101 is movably equipped with an equipment pull-up door 102 and an equipment front door 103, the equipment front door 103 is arranged below the equipment pull-up door 102, an indicator light 104 is fixedly installed on the top of the outer shell 101, an emergency stop button 105, a key switch 106, a servo button 108, a laser button 109, a USB interface 110, a door lock button 111 and an illumination button 113 are arranged on the front of the outer shell 101, the key switch 106 is arranged below the emergency stop button 105, the servo button 108 is arranged below the key switch 106, the laser button 109 is arranged below the servo button 108, the USB interface 110 is arranged below the laser button 109, the door lock button 111 is arranged below the USB interface 110, and the illumination button 113 is arranged below the door lock button 111, and a display 107 and a keyboard 113 are fixedly installed on one side of the outer shell 101. 2. The keyboard 112 is arranged below the display 107, and an adjustment frame 114 is arranged on the inner side of the outer shell 101. An adjustment slot 115 is symmetrically opened on the inner side of the adjustment frame 114. A longitudinal motor 116 is arranged at one end of the adjustment frame 114. The output end of the longitudinal motor 116 is connected to a longitudinal screw rod 117. The longitudinal screw rod 117 is arranged on the inner side of a single adjustment slot 115. An adjustment frame 118 is movably installed on the inner side of the adjustment slot 115. One end of the adjustment frame 118 is threadedly connected to the longitudinal screw rod 117. A transverse motor 119 is arranged on the inner side of the adjustment frame 118. The output end of the transverse motor 119 is connected to a transverse screw rod 120. The transverse screw rod 120 is arranged on the inner side of the adjustment frame 118. A moving block 121 is threadedly connected to the outer side of the transverse screw rod 120. A lifting cylinder 122 is arranged at the bottom of the moving block 121. One end of the lifting cylinder 122 is connected to one side of the print head 125.

[0027] In this embodiment, opening and closing the pull-up door 102 on the equipment facilitates the placement of trays or the removal of materials, and provides convenient operation. The front door 103 of the equipment facilitates the maintenance and processing of the equipment. The indicator light 104 can provide a warning function at the top, which is convenient for checking the working status of the equipment. The emergency stop button 105, the key switch 106, the servo button 108, the laser button 109, the door lock button 111 and the lighting button 113 facilitate the control switch operation of the equipment. The display 107 facilitates the display of work information. The USB interface 110 facilitates the access to the equipment for multi-function operation. The keyboard 11 In order to facilitate further processing and control, the adjustment frame 114 is arranged inside the outer shell 101 and is provided with an adjustment slot 115. The adjustment frame 118 is slidably mounted into the inner wall of the adjustment slot 115 and is threadedly connected with the longitudinal screw rod 117. The longitudinal screw rod 117 is driven to rotate by the longitudinal motor 116 to achieve longitudinal movement. The transverse motor 119 is arranged on the inner side of the adjustment frame 118 to drive the transverse screw rod 120 to rotate, thereby driving the moving block 121 to achieve transverse movement, and further driving the lifting cylinder 122 to achieve multi-directional movement. At the same time, the lifting cylinder 122 can further drive the printing nozzle 125 to achieve the function of lifting and lowering adjustment, thereby achieving printing work.

[0028] In the present invention, when the multi-material micro-injection 3D printer is used, firstly, the upper pull-up door 102 of the device is opened and closed to facilitate the placement of trays or the removal of materials, and convenient operation is provided. The front door 103 of the device is convenient for the maintenance and processing of the device. The indicator light 104 can provide a warning function at the top, which is convenient for checking the working status of the device. The emergency stop button 105, the key switch 106, the servo button 108, the laser button 109, the door lock button 111 and the lighting button 113 facilitate the control switch operation of the device. The display 107 facilitates the display of work information. The USB interface 110 facilitates the access to the device for multi-function operation. The keyboard 112 facilitates the provision of input and output. One-step processing control, the adjustment frame 114 is arranged inside the outer shell 101 and is provided with an adjustment slot 115, the adjustment frame 118 is slidably installed into the inner wall of the adjustment slot 115 and is threadedly connected with the longitudinal screw rod 117, and the longitudinal screw rod 117 is driven to rotate by the longitudinal motor 116 to realize longitudinal movement, and the transverse motor 119 is arranged on the inner side of the adjustment frame 118 to drive the transverse screw rod 120 to rotate, thereby driving the moving block 121 to realize transverse movement, and further driving the lifting cylinder 122 to realize multi-directional movement. At the same time, the lifting cylinder 122 can further drive the print head 125 to realize the function of lifting and lowering adjustment, thereby realizing printing work, the multi-material print box 123 is arranged inside the outer shell 101, and the multi-material print box 12 3 can be connected to a plurality of different material interfaces inside, so as to facilitate the input of different materials for printing preparation. The feed pipe 124 connects the multi-material printing box 123 and the printing nozzle 125, so as to facilitate the printing work. The work is started by the circulation pump 208, and the input pipe 203 is connected to and connected with the winding cooling pipe 204. One end of the winding cooling pipe 204 is connected to the upper circulation pump 208 through the connecting pipe 205. The circulation pump 208 is also connected to the top of the cooling box 201 through the return pipe 206, so as to facilitate the cooling inside the cooling box 201 to be extracted through the circulation pump 208 and the input pipe 203, and then the cooling material is input through the input pipe 203 and then screwed through the winding cooling pipe 204, so that The cooling surround is on the print nozzle 125, taking away the heat, and then circulates into the circulation pump 208 through the connecting pipe 205, and is connected to the upper return pipe 206 through the circulation pump 208 and then input into the interior of the cooling box 201, thereby realizing the cooling cycle. After printing is completed, the connecting plate 303 is manually rotated to align the rotating shaft 305 with the bottom of the print nozzle 125, and then the rotating shaft 305 is contracted to insert the rotating shaft 305 and the cleaning brush 306 into the interior of the print nozzle 125, and then the cleaning motor 304 drives the rotating shaft 305 to rotate, so that the cleaning brush 306 rotates to clean the interior of the print nozzle 125. By cleaning the interior of the nozzle, these residual materials can be effectively removed to ensure that the nozzle channel is unobstructed.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-material microjet 3D printer, comprising a printer (1), characterized in that: A cooling mechanism (2) is arranged on the side and inside of the printer (1), a cleaning component (3) is arranged inside the printer (1), the printer (1) comprises an outer shell (101), a multi-material print box (123) is arranged inside the outer shell (101), a material delivery pipe (124) is fixedly connected to the front of the outer shell (101), and a print head (125) is fixedly connected to one end of the material delivery pipe (124); The cooling mechanism (2) comprises a cooling box (201), the bottom of the cooling box (201) is fixedly connected to an input pipe (203), one end of the input pipe (203) is fixedly connected to a winding cooling pipe (204), the winding cooling pipe (204) is wound around the outside of the print head (125), one end of the winding cooling pipe (204) is fixedly connected to a connecting pipe (205), one end of the connecting pipe (205) is fixedly connected to a circulation pump (208), and one end of the circulation pump (208) is fixedly connected to A return pipe (206) is provided, one end of the return pipe (206) is fixedly connected to the top of the cooling box (201), a mounting frame (207) is fixedly installed on the outside of the printing nozzle (125), a plurality of cooling fans (210) are evenly distributed on one side of the mounting frame (207), the cooling fans (210) are evenly distributed vertically on the side of the printing nozzle (125), a fan cover (209) is provided on the outside of the cooling fan (210), and an injection port (202) is provided on the top of the cooling box (201).

2. The multi-material microjet 3D printer according to claim 1, characterized in that: The cleaning component (3) comprises a cleaning motor (304), the top of the cleaning motor (304) is connected to a rotating shaft (305), and a plurality of cleaning brushes (306) are evenly distributed on the outer wall of the rotating shaft (305).

3. The multi-material microjet 3D printer according to claim 2, characterized in that: A connecting plate (303) is provided on the top of the cleaning motor (304), the connecting plate (303) movably passes through the inner side of the connecting plate (303), and a transfer shaft (302) is provided at one end of the connecting plate (303).

4. The multi-material microjet 3D printer according to claim 3, characterized in that: An electric lifting rod (301) is arranged at the top of the transfer shaft (302), and the top of the electric lifting rod (301) is connected to the bottom of the mounting frame (207).

5. The multi-material microjet 3D printer according to claim 1, characterized in that: The front of the outer shell (101) is movably provided with an equipment pull-up door (102) and an equipment front door (103); the equipment front door (103) is arranged below the equipment pull-up door (102); and an indicator light (104) is fixedly provided on the top of the outer shell (101).

6. The multi-material microjet 3D printer according to claim 1, characterized in that: An emergency stop button (105), a key switch (106), a servo button (108), a laser button (109), a USB interface (110), a door lock button (111), and an illumination button (113) are arranged on the front of the outer shell (101); the key switch (106) is arranged below the emergency stop button (105); the servo button (108) is arranged below the key switch (106); the laser button (109) is arranged below the servo button (108); the USB interface (110) is arranged below the laser button (109); the door lock button (111) is arranged below the USB interface (110); and the illumination button (113) is arranged below the door lock button (111).

7. The multi-material microjet 3D printer according to claim 1, characterized in that: A display (107) and a keyboard (112) are fixedly mounted on one side of the outer shell (101); the keyboard (112) is arranged below the display (107).

8. The multi-material microjet 3D printer according to claim 1, characterized in that: An adjustment frame (114) is arranged on the inner side of the outer shell (101), and adjustment slots (115) are symmetrically provided on the inner side of the adjustment frame (114). A longitudinal movement motor (116) is arranged on one end of the adjustment frame (114), and an output end of the longitudinal movement motor (116) is connected to a longitudinal movement screw rod (117). The longitudinal movement screw rod (117) is arranged on the inner side of a single adjustment slot (115).

9. The multi-material microjet 3D printer according to claim 8, characterized in that: An adjustment frame (118) is movably mounted on the inner side of the adjustment slot (115); one end of the adjustment frame (118) is threadedly connected to the longitudinal moving screw rod (117); a transverse moving motor (119) is arranged on the inner side of the adjustment frame (118); an output end of the transverse moving motor (119) is connected to the transverse moving screw rod (120); and the transverse moving screw rod (120) is arranged on the inner side of the adjustment frame (118).

10. The multi-material microjet 3D printer according to claim 9, characterized in that: The outer side of the transverse screw rod (120) is threadedly connected to a moving block (121), a lifting cylinder (122) is provided at the bottom of the moving block (121), and one end of the lifting cylinder (122) is connected to one side of the printing nozzle (125).

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