3D printing lifting and forming cabin

Abstract

The invention discloses a 3D printing lifting and forming cabin, and relates to the technical field of 3D printers, the outer side of a lifting screw rod is connected with a linkage plate through a screw hole, one side of the linkage plate is connected with a trapezoidal sliding block, the trapezoidal sliding block is embedded into an adjacent trapezoidal groove, and one side of the top of the linkage plate is connected with a connecting block through a pressure sensor and a spherical joint; a lifting bed is connected between the tops of the connecting blocks, square frames are welded to the four corners of the bottom of the lifting bed, and the connecting blocks are embedded into the adjacent square frames. Lifting screws are driven by servo motors to rotate, under the connecting action of spherical joints, the four corners of the lifting bed ascend or descend, and compared with the prior art, the horizontal precision is higher; the production quality of products is guaranteed, dust is separated from the lifting screw through the dustproof corrugated pipe, the dust is prevented from adhering to the surface of the lifting screw, synchronous movement of four corners of the lifting bed is guaranteed in the lifting process of the lifting bed, and the forming quality of the products is further guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printers, and in particular to a 3D printing lifting and molding cabin. Background Art

[0002] 3D printing is a type of rapid prototyping technology, also known as additive manufacturing. It is a technology that uses digital model files as the basis and uses adhesive materials such as dust-like metal or plastic to construct objects by printing layer by layer. This technology is often used in mold manufacturing, industrial design and other fields.

[0003] The mechanical efficiency of a screw lift in converting rotary motion into linear motion far exceeds that of hydraulic or chain drive systems. This makes it suitable for 3D printing scenarios where the height of the lifting platform needs to be frequently adjusted. In the Chinese patent application number CN202322676572.9, entitled "A 3D Printing Device with Adjustable Pulley V-Groove Tightness," the patent provides a stable position limit for the sliding wheel, improving the sliding wheel's movement stability during the printer's operation. Furthermore, if the sliding wheel develops excessive clearance after long-term use, there is no need to completely replace the guide rail body. To ensure the quality of product molding, the lifting platform needs to be leveled before the product is printed. When leveling existing 3D printers, the adjustment screws at the four corners of the lifting platform need to be manually adjusted. Manual adjustment is relatively cumbersome, and the wire feeder heats and melts the plastic and extrude it through the nozzle. During the high-temperature extrusion process of the plastic, some debris forms fine dust due to mechanical friction and oxidation reaction. The dust adheres to the surface of the driven screw, which not only accelerates the wear of the screw, but in severe cases causes the screw to move poorly, causing the lifting platform to tilt, affecting the molding quality of the product. Summary of the Invention

[0004] The present invention provides a 3D printing lifting and molding cabin, which can effectively solve the problem in the above-mentioned background technology that the existing 3D printers need to manually adjust the adjustment screws at the four corners of the lifting platform when leveling. The manual adjustment is relatively cumbersome, and the wire feeder heats and melts the plastic and extrude it through the nozzle to form it. During the high-temperature extrusion process of the plastic, some debris forms fine dust due to mechanical friction and oxidation reaction. The dust adheres to the surface of the driving screw, which not only accelerates the wear of the screw, but also causes the screw to move poorly in severe cases, causing the lifting platform to tilt, affecting the molding quality of the product.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a 3D printing lifting and molding cabin, comprising a cabinet, a lifting molding assembly is provided on the top of the cabinet, and the lifting molding assembly includes an assembly frame; An assembly rack is installed on the top of the cabinet, and columns are connected to the four corners of the top of the assembly rack. Trapezoidal grooves are opened on the four sides of the columns. The top of the column is fixed with a cabin top plate by screws, and a support frame is installed at the four corners of the bottom of the cabin top plate. The bottom of the support frame is rotatably connected to one end of the lifting screw. The outer side of the lifting screw is connected to a linkage plate through a screw hole. A trapezoidal slider is connected to one side of the linkage plate, and the trapezoidal slider is embedded in the adjacent trapezoidal slots. One side of the top of the linkage plate is connected to a connecting block through a pressure sensor and a spherical joint. A lifting bed is connected between the tops of the connecting blocks. Square frames are welded at the four corners of the bottom of the lifting bed, and the connecting blocks are embedded in adjacent square frames.

[0006] According to the above technical solution, an assembly plate is installed on the top of the assembly frame, and servo motors are installed at the four corners of the bottom of the assembly plate. The output end of the servo motor is connected to the other end of the adjacent lifting screw.

[0007] According to the above technical solution, an integrated board is installed at the bottom of the lifting bed, a laser transmitter is installed at the top center of the assembly board, and a laser receiver is installed at the bottom center of the integrated board.

[0008] According to the above technical solution, a sliding ear is installed on one side of the bottom of the lifting bed near the square frame, a sliding rod is slidably installed inside the sliding ear, a connecting ear is welded on the outside of the sliding rod, one end of the sliding rod passes through the adjacent square frame and the connecting block, a connecting spring is connected between the sliding ear and the adjacent connecting ear, the other end of the sliding rod is rotatably connected to the fixed ear, and a fixing rod is welded on the side of the bottom of the lifting bed near the fixed ear.

[0009] According to the above technical solution, a number of electric heating plates are evenly installed at the bottom of the lifting bed and on the top of the integrated board.

[0010] According to the above technical solution, an annular cylinder is installed on the top of the assembly plate and located outside the lifting screw, an annular cylinder is also installed on the top of the linkage plate and located outside the lifting screw, an annular cylinder is also installed on the bottom of the linkage plate and located outside the lifting screw, and an annular cylinder is also installed on the bottom of the support frame and located outside the lifting screw; A fixing ring is provided on the inner side of the annular cylinder, and arc plates are connected to both sides of the annular cylinder through a number of fixing springs. A dustproof bellows is connected between the two opposite annular cylinders, and both ends of the dustproof bellows are respectively located between adjacent fixing rings and arc plates.

[0011] According to the above technical solution, a sealed dust removal component is provided inside the cabinet, and the sealed dust removal component includes a lifting electric push rod; Lifting electric push rods are installed on both sides of the cabinet body, the output end of the lifting electric push rod passes through the assembly plate and is connected to a dust collection box, a dust collection port is opened on one side of the dust collection box, and a dust collection bellows is connected between the two ends of the bottom of the dust collection box and the top of the assembly plate, and a dust conveying main pipe is connected between the bottom of the assembly plate and the bottom of the dust collection bellows; The middle of the bottom of the dust conveying main pipe is connected to a connecting cylinder, a purification box is installed at the bottom of the connecting cylinder, a telescopic outer cylinder is connected to the top of the purification box, a telescopic inner cylinder is slidably connected inside the telescopic outer cylinder, a magnet ring is connected to the top of the telescopic inner cylinder, and a filter rack is connected to the bottom of the inner side of the connecting cylinder through a threaded rotation, and a filter rack is bonded to the inside of the filter rack; An air pump is installed at the bottom of the purification box, the air suction end of the air pump is connected to the bottom of the purification box, the exhaust end of the air pump is connected to one end of the exhaust pipe, and the other end of the exhaust pipe runs through one side of the cabinet.

[0012] According to the above technical solution, a drawer box is movably embedded in the purification box, a plurality of communication holes are evenly opened on the bottom of the drawer box, and a filter element is filled in the drawer box.

[0013] According to the above technical solution, a sealing side panel is connected between two adjacent columns, and three sealing side panels are provided. Assembly sliders are welded at equal intervals on both sides of the sealing side panels. The assembly sliders are embedded in the adjacent trapezoidal grooves, and the outer sides of the assembly sliders are tightly fitted with the inner sides of the trapezoidal grooves. A door is hinged on one side of one of the sealing side panels, and air intake filters are installed with openings on both sides of the top of the cabin roof.

[0014] According to the above technical solution, the servo motor, laser transmitter, laser receiver, electric heater, pressure sensor, lifting electric push rod and air pump input end are electrically connected to the external power output end through the controller.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. It is equipped with a lifting and forming component. The pressure sensor and laser receiver are used to ensure the horizontality of the lifting bed and the quality of product production. When the lifting bed is in a tilted state, the servo motor drives the lifting screw to rotate, and the linkage plate moves up and down along the trapezoidal groove. Under the connection of the ball joint, the four corners of the lifting bed rise or fall. When the data fed back by the four pressure sensors is within the error range and the laser receiver can receive the laser emitted by the laser transmitter, the lifting bed is in a horizontal state. Compared with the existing technology, manual adjustment is not required, which is convenient and fast, with higher horizontal accuracy, thus ensuring product production quality. The dust-proof bellows separates dust from the lifting screw, preventing dust from adhering to the surface of the lifting screw and damaging the lifting screw, thereby extending the service life of the lifting screw and preventing dust from hindering the movement of the lifting screw. During the lifting process of the lifting bed, the synchronous movement of the four corners of the lifting bed is ensured, preventing the lifting bed from tilting during the lifting process, and further ensuring the quality of product molding; Under the elastic force of the fixing spring, the arc plate and the fixing ring can fix one end of the dustproof bellows. When the lifting screw needs to be replenished with lubricating oil, the arc plate is pulled, and one end of the dustproof bellows can be quickly separated from the middle of the adjacent fixing ring and the arc plate, which is convenient for replenishing lubricating oil to the lifting screw and convenient for daily maintenance. Hold the fixed ear and pull the sliding rod to separate the sliding rod from the square frame. At this time, the connecting spring is stretched and the fixed ear is rotated. Under the action of the spring force, the fixed ear is fixed with the fixing rod. After all the sliding rods are separated from the square frame, the lifting bed can be removed, which is convenient for maintenance of the lifting bed.

[0016] 2. A sealed dust removal component is provided. During the printing process of the product, the lifting electric push rod drives the dust collection box to move with the print head. Under the traction of the vacuum pump, the dust generated by printing enters the dust collection box from the dust collection port driven by the airflow. The airflow drives the dust to flow through the dust collection bellows, dust conveying main pipe, connecting cylinder, filter screen, telescopic inner cylinder, telescopic outer cylinder, purification box, extraction box and connecting hole in sequence, and finally discharged from the exhaust pipe. The filter screen collects the dust and the activated carbon filter element filters the air to prevent the dust generated by printing from flying around, thereby improving the air quality of the production environment and protecting the personal health of on-site workers. At the same time, the flowing air can take away the heat inside the product, speed up the heat dissipation of the product, avoid the softening and deformation of the product due to heat accumulation, and improve the molding quality of the product. When the dust inside the filter needs to be cleaned, pull the telescopic inner cylinder to separate the magnet ring from the connecting cylinder, then rotate the filter frame to separate the filter frame from the connecting cylinder, clean the dust inside the filter, connect the filter frame to the connecting cylinder, and then lift the telescopic inner cylinder to connect the magnet ring to the connecting cylinder. When the filter element needs to be replaced, pull out the drawer box to replace the filter element. The filter and filter element are easy to disassemble and assemble, which is convenient for daily cleaning.

[0017] In summary, the lifting bed in the lifting molding assembly can be quickly installed and disassembled by pulling the sliding rod, the assembled slider in the sealing and dust removal assembly is embedded in the adjacent trapezoidal groove, the cabin top plate and the sealing side panels are modularly assembled, and the overall printer maintenance and replacement is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0019] In the attached figure: Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a structural schematic diagram of the lifting and forming assembly of the present invention; Figure 3 It is a schematic diagram of the installation structure of the column of the present invention; Figure 4 Schematic diagram of the installation structure of the trapezoidal slider of the present invention; Figure 5 This invention comes from Figure 4 A magnified view of area A; Figure 6 Schematic diagram of the installation structure of the sliding rod of the present invention; Figure 7 This is a schematic diagram of the installation structure of the electric heater of the present invention; Figure 8 It is a structural schematic diagram of the sealed dust removal assembly of the present invention; Figure 9 This is a schematic diagram of the installation structure of the lifting electric push rod of the present invention; Figure 10 This is a schematic diagram of the installation structure of the dust collection box of the present invention; Figure 11 This is a schematic diagram of the installation structure of the telescopic inner cylinder of the present invention; Numbers in the figure: 1, cabinet; 2. Lifting molding assembly; 201. Assembly frame; 202. Assembly plate; 203. Column; 204. Trapezoidal groove; 205. Cabin top plate; 206. Support frame; 207. Lifting screw; 208. Servo motor; 209. Linkage plate; 210. Trapezoidal slider; 211. Spherical joint; 212. Connecting block; 213. Lifting bed; 214. Square frame; 215. Sliding ear; 216. Sliding rod; 217. Connecting ear; 218. Connecting spring; 219. Fixing ear; 220. Fixing rod; 221. Annular cylinder; 222. Fixing ring; 223. Fixing spring; 224. Arc plate; 225. Dustproof bellows; 226. Laser transmitter; 227. Laser receiver; 228. Integrated board; 229. Heater; 230. Pressure sensor; 3. Sealed dust removal assembly; 301. Lifting electric push rod; 302. Dust collection box; 303. Dust collection port; 304. Dust collection bellows; 305. Dust conveying main pipe; 306. Connecting cylinder; 307. Purification box; 308. Telescopic outer cylinder; 309. Telescopic inner cylinder; 310. Magnet ring; 311. Filter rack; 312. Filter; 313. Pump box; 314. Filter element; 315. Connecting hole; 316. Vacuum pump; 317. Exhaust pipe; 318. Sealed side panel; 319. Assembly slide; 320. Hatch door; 321. Inlet filter. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0021] Example: Figure 1-11 As shown, the present invention provides a technical solution for a 3D printing lifting and molding cabin, including a cabinet 1, a lifting molding assembly 2 is provided on the top of the cabinet 1, and the lifting molding assembly 2 includes an assembly frame 201, an assembly plate 202, a column 203, a trapezoidal groove 204, a cabin top plate 205, a support frame 206, a lifting screw 207, a servo motor 208, a linkage plate 209, a trapezoidal slider 210, a spherical joint 211, a connecting block 212, a lifting bed 213, a square frame 214, a sliding ear 215, a sliding rod 216, a connecting ear 217, a connecting spring 218, a fixing ear 219, a fixing rod 220, an annular cylinder 221, a fixing ring 222, a fixing spring 223, an arc plate 224, a dustproof bellows 225, a laser emitter 226, a laser receiver 227, an integrated board 228, an electric heater 229 and a pressure sensor 230; An assembly rack 201 is installed on the top of the cabinet 1. The four corners of the top of the assembly rack 201 are connected to columns 203. Trapezoidal grooves 204 are opened on the four sides of the columns 203. The top of the column 203 is fixed with a cabin top plate 205 by screws. Support frames 206 are installed at the four corners of the bottom of the cabin top plate 205. The bottom of the support frame 206 is rotatably connected to one end of the lifting screw 207. The outer side of the lifting screw 207 is connected to a linkage plate 209 through a screw hole. A trapezoidal slider 210 is connected to one side of the linkage plate 209. The trapezoidal slider 210 is embedded in Inside the adjacent trapezoidal slots 204, an assembly plate 202 is installed on the top of the assembly frame 201, and servo motors 208 are installed at the four corners of the bottom of the assembly plate 202. The output end of the servo motor 208 is connected to the other end of the adjacent lifting screw 207. The trapezoidal slots 204 can limit and guide the trapezoidal slider 210. When the servo motor 208 drives the lifting screw 207 to rotate, the trapezoidal slider 210 can move up and down smoothly along the trapezoidal slots 204, thereby driving the linkage plate 209 to move up and down smoothly along the trapezoidal slots 204. The top side of the linkage plate 209 is connected to a connecting block 212 through a pressure sensor 230 and a ball joint 211. A lifting bed 213 is connected between the tops of the connecting blocks 212. Square frames 214 are welded at the four corners of the bottom of the lifting bed 213. The connecting block 212 is embedded in the adjacent square frames 214. A sliding ear 215 is installed on the bottom of the lifting bed 213 near the square frame 214. A sliding rod 216 is slidably installed inside the sliding ear 215. A connecting ear 217 is welded to the outside of the sliding rod 216. One end of the sliding rod 216 passes through the adjacent square frame 214 and the connecting block 212. The sliding ear 215 is connected to the adjacent connecting ear 217. A connecting spring 218 is connected between them, and the other end of the sliding rod 216 is rotatably connected to the fixing ear 219. A fixing rod 220 is welded on the side of the bottom of the lifting bed 213 near the fixing ear 219. The sliding rod 216 is pulled by holding the fixing ear 219 to separate the sliding rod 216 from the square frame 214. At this time, the connecting spring 218 is extended, and the fixing ear 219 is rotated. Under the action of the spring elastic force, the fixing ear 219 is fixed by the fixing rod 220. After all the sliding rods 216 are separated from the square frame 214, the connecting block 212 can be separated from the square frame 214, and the lifting bed 213 can be removed, which is convenient for maintenance of the lifting bed 213. Pressure sensors 230 are distributed at the four corners of the lift bed 213. The pressure sensors 230 feed back the pressure data of the four corners of the lift bed 213 to the controller. The controller can determine whether the lift bed 213 is level based on the pressure data of the four corners. An integrated board 228 is installed at the bottom of the lift bed 213. A laser transmitter 226 is installed at the top center of the assembly board 202. A laser receiver 227 is installed at the bottom center of the integrated board 228. The laser emitted by the laser transmitter 226 can be received by the laser receiver 227. The laser emitted by the laser transmitter 226 is received by the laser receiver 227. During reception, the lift bed 213 is in a horizontal state. When the laser receiver 227 cannot receive the laser light emitted by the laser transmitter 226, the lift bed 213 is in a tilted state. Whether the laser receiver 227 can receive the laser light emitted by the laser transmitter 226 can determine the horizontal state of the lift bed 213. When the data fed back by the pressure sensor 230 and the data fed back by the laser receiver 227 both indicate that the lift bed 213 is horizontal, subsequent printing is performed. Under the dual protection of the pressure sensor 230 and the laser receiver 227, the horizontal state of the lift bed 213 is guaranteed. Several electric heaters 229 are evenly installed at the bottom of the lifting bed 213 and on the top of the integrated board 228. When the product printed on the top of the lifting bed 213 is small, it is only necessary to operate the electric heater 229 at the bottom of the product to be printed. The printer can flexibly control the operating status of a single electric heater 229 according to the size of the product to be printed. Compared with the operation of an integral electric heater 229 at the bottom of the existing lifting bed 213, it is more energy-efficient.

[0022] An annular cylinder 221 is installed on the top of the assembly plate 202 and on the outside of the lifting screw 207. An annular cylinder 221 is also installed on the top of the linkage plate 209 and on the outside of the lifting screw 207. An annular cylinder 221 is also installed on the bottom of the linkage plate 209 and on the outside of the lifting screw 207. An annular cylinder 221 is also installed on the bottom of the support frame 206 and on the outside of the lifting screw 207. A fixing ring 222 is provided on the inside of the annular cylinder 221. The two sides of the annular cylinder 221 are connected to an arc plate 224 through a number of fixing springs 223. A dustproof bellows 225 is connected between the two opposite annular cylinders 221. The two ends of the bellows 225 are respectively located between the adjacent fixing rings 222 and the curved plate 224. The dust-proof bellows 225 can expand and contract following the movement of the linkage plate 209. The dust-proof bellows 225 can separate dust from the lifting screw 207 to prevent dust from adhering to the surface of the lifting screw 207. Under the elastic force of the fixing spring 223, the curved plate 224 and the fixing ring 222 can fix one end of the dust-proof bellows 225. By pulling the curved plate 224, one end of the dust-proof bellows 225 can quickly break away from the middle of the adjacent fixing ring 222 and the curved plate 224, making it convenient to add lubricating oil to the lifting screw 207. A sealed dust removal assembly 3 is provided inside the cabinet 1, and the sealed dust removal assembly 3 includes a lifting electric push rod 301, a dust collection box 302, a dust collection port 303, a dust collection bellows 304, a dust conveying main pipe 305, a connecting cylinder 306, a purification box 307, a telescopic outer cylinder 308, a telescopic inner cylinder 309, a magnet ring 310, a filter rack 311, a filter 312, a suction box 313, a filter element 314, a connecting hole 315, an air pump 316, an exhaust pipe 317, a sealing side plate 318, an assembly slider 319, a hatch 320 and an air intake filter 321; A lifting electric push rod 301 is installed on both sides of the cabinet 1. The output end of the lifting electric push rod 301 passes through the assembly plate 202 and is connected to a dust collection box 302. A dust collection port 303 is opened on one side of the dust collection box 302. A dust collection bellows 304 is connected between the two ends of the bottom of the dust collection box 302 and the top of the assembly plate 202. A dust conveying main pipe 305 is connected between the bottom of the assembly plate 202 and the bottom of the dust collection bellows 304; A connecting tube 306 is connected to the middle of the bottom of the dust conveying main pipe 305. A purification box 307 is installed at the bottom of the connecting tube 306. A telescopic outer tube 308 is connected to the top of the purification box 307. A telescopic inner tube 309 is slidably connected to the inner part of the telescopic outer tube 308. A magnet ring 310 is connected to the top of the telescopic inner tube 309. The connecting tube 306 is made of iron. When the magnet ring 310 fits with the connecting tube 306, the magnet ring 310 can be adsorbed on the bottom of the connecting tube 306. The bottom inside the connecting tube 306 is connected to a filter holder 311 by screw thread rotation. A filter screen 312 is bonded to the inside of the filter holder 311. An air pump 316 is installed at the bottom of the purification box 307. The air suction end of the air pump 316 is connected to the bottom of the purification box 307. The exhaust end of the air pump 316 is connected to one end of an exhaust pipe 317. The other end of the exhaust pipe 317 passes through one side of the cabinet 1. A suction box 313 is movably embedded in the purification box 307. A plurality of connecting holes 315 are evenly opened at the bottom of the suction box 313. The interior of the suction box 313 is filled with a filter element 314. The filter element 314 is an activated carbon filter element 314 that can absorb odors generated by printing and improve the air quality of the production environment. A sealing side panel 318 is connected between two adjacent columns 203. Three sealing side panels 318 are provided. Assembly sliders 319 are welded at equal intervals on both sides of the sealing side panels 318. The assembly sliders 319 are embedded in the adjacent trapezoidal grooves 204. The outer sides of the assembly sliders 319 fit tightly with the inner sides of the trapezoidal grooves 204, making it easy to install and remove the sealing side panels 318. A door 320 is hinged on one side of one sealing side panel 318. Air intake filters 321 are installed on the openings on both sides of the top of the cabin roof 205. The air intake filters 321 can filter the air entering the printing cabin to prevent external dust from entering the printing cabin. The input ends of the servo motor 208, laser emitter 226, laser receiver 227, electric heater 229, pressure sensor 230, lifting electric push rod 301 and vacuum pump 316 are electrically connected to the output end of the external power supply through the controller. The controller can control each electrical component to facilitate the automated control of the equipment.

[0023] The working principle and usage process of the present invention are as follows: Before printing a product, the pressure sensor 230 feeds back the pressure data of the four corners of the lifting bed 213 to the controller. At the same time, the laser transmitter 226 and the laser receiver 227 are activated. The laser receiver 227 feeds back the received data to the controller. If the pressure data of the four corners are within the error range and the laser receiver 227 receives the laser emitted by the laser transmitter 226, the lifting bed 213 is in a horizontal state and does not need to be leveled. When the pressure sensor 230 fails or is damaged, the laser receiver 227 serves as a check. Under the dual protection of the pressure sensor 230 and the laser receiver 227, the horizontality of the lifting bed 213 is guaranteed, ensuring the quality of product production. When the data fed back by the pressure sensor 230 exceeds the error range, the lifting bed 213 is in a tilted state. Subsequently, the controller controls the corresponding servo motor 208 to operate according to the pressure data, and the trapezoidal groove 204 limits and guides the trapezoidal slider 210. The servo motor 208 drives the lifting screw 207 to rotate, and the linkage plate 209 moves up and down along the trapezoidal groove 204. When the linkage plate 209 moves, the four corners of the lifting bed 213 rise or fall under the connection of the ball joint 211. When the data fed back by the four pressure sensors 230 are within the error range and the laser receiver 227 can receive the laser emitted by the laser transmitter 226, the servo motor 208 stops running. At this time, the lifting bed 213 is in a horizontal state. Compared with the existing technology, no manual adjustment is required, which is convenient and fast, with higher horizontal accuracy, thereby ensuring product production quality. The dust-proof bellows 225 can expand and contract following the movement of the linkage plate 209. The dust-proof bellows 225 separates dust from the lifting screw 207, preventing dust from adhering to the surface of the lifting screw 207 and damaging the lifting screw 207, thereby extending the service life of the lifting screw 207 and preventing dust from hindering the movement of the lifting screw 207. During the lifting and lowering process of the lifting bed 213, the four corners of the lifting bed 213 are ensured to move synchronously, preventing the lifting bed 213 from tilting during the lifting process, thereby further ensuring the quality of product molding. Under the elastic force of the fixing spring 223, the arc plate 224 and the fixing ring 222 can fix one end of the dustproof bellows 225. When the lifting screw 207 needs to be replenished with lubricating oil, the arc plate 224 is pulled, and one end of the dustproof bellows 225 can be quickly separated from the middle of the adjacent fixing ring 222 and the arc plate 224, which is convenient for replenishing lubricating oil to the lifting screw 207 and convenient for daily maintenance. When the lift bed 213 needs to be maintained, the fixed ear 219 is held and pulled to pull the sliding rod 216, so that the sliding rod 216 is separated from the square frame 214. At this time, the connecting spring 218 is extended, and the fixed ear 219 is rotated. Under the action of the spring force, the fixing ear 219 is fixed by the fixing rod 220. After all the sliding rods 216 are separated from the square frame 214, the connecting block 212 can be separated from the square frame 214, and the lift bed 213 can be removed, which is convenient for maintenance of the lift bed 213. When installing the lift bed 213, the connecting block 212 is connected to the square frame 214, the fixed ear 219 is rotated, the connecting spring 218 rebounds, and the sliding rod 216 returns to its original position. It is convenient and quick. Several electric heaters 229 are evenly installed at the bottom of the lifting bed 213 and on top of the integrated board 228. When the product printed on the top of the lifting bed 213 is small, only the electric heater 229 at the bottom of the product to be printed needs to be operated. The printer can flexibly control the operating state of each electric heater 229 according to the size of the product to be printed. Compared with the existing operation of a single electric heater 229 at the bottom of the lifting bed 213, it is more energy-efficient. During the printing process, the lifting electric push rod 301 drives the dust collection box 302 to move along with the print head, and the air pump 316 is running. Under the traction of the air pump 316, the external air enters the molding chamber through the air inlet filter 321, and the dust generated by printing enters the dust collection box 302 through the dust suction port 303 driven by the air flow. The air flow drives the dust to flow through the dust collection bellows 304, the dust conveying main pipe 305, the connecting tube 306, the filter 312, the telescopic inner tube 309, the telescopic outer tube 308, the purification box 307, the extraction box 313 and the connecting hole 315 in sequence, and finally discharged from the exhaust pipe 317. The filter 312 collects the dust, and the activated carbon filter element 314 filters the air to prevent the dust generated by printing from flying around, thereby improving the air quality of the production environment and protecting the health of the workers on site. In addition, the air flow can take away the heat inside the product, accelerate the heat dissipation of the product, avoid the softening and deformation of the product due to heat accumulation, and improve the molding quality of the product. When the dust inside the filter 312 needs to be cleaned, the telescopic inner cylinder 309 is pulled to separate the magnet ring 310 from the connecting cylinder 306, and then the filter frame 311 is rotated to separate the filter frame 311 from the connecting cylinder 306, and the dust inside the filter 312 is cleaned. After the filter frame 311 is connected to the connecting cylinder 306, the telescopic inner cylinder 309 is lifted to connect the magnet ring 310 to the connecting cylinder 306. When the filter element 314 needs to be replaced, the drawer box 313 is pulled out to replace the filter element 314. The filter 312 and the filter element 314 are easy to disassemble and assemble, which is convenient for daily cleaning. The assembly slider 319 is embedded in the adjacent trapezoidal groove 204. When the electrical components inside the molding chamber need to be repaired or replaced, the cabin top plate 205 is removed, and the sealing side plate 318 is held to separate the assembly slider 319 from the trapezoidal groove 204. The cabin top plate 205 and the sealing side plate 318 are both modularly assembled, which facilitates the repair and replacement of electrical components inside the molding chamber.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A 3D printing lifting and molding cabin, comprising a cabinet (1), characterized in that: A lifting and forming assembly (2) is provided on the top of the cabinet (1), and the lifting and forming assembly (2) includes an assembly frame (201); An assembly frame (201) is installed on the top of the cabinet (1), and columns (203) are connected to the four corners of the top of the assembly frame (201), and trapezoidal grooves (204) are opened on four sides of the columns (203). A cabin top plate (205) is fixed to the top of the columns (203) by screws, and support frames (206) are installed at the four corners of the bottom of the cabin top plate (205). The bottom of the support frame (206) is rotatably connected to one end of a lifting screw (207), and a linkage plate (209) is connected to the outside of the lifting screw (207) through a screw hole. A trapezoidal slider (210) is connected to one side of the linkage plate (209), and the trapezoidal slider (210) is embedded in the adjacent trapezoidal groove (204). One side of the top of the linkage plate (209) is connected to a connection block (212) via a pressure sensor (230) and a spherical joint (211); a lifting bed (213) is connected between the tops of the connection blocks (212); square frames (214) are welded at the four corners of the bottom of the lifting bed (213); and the connection blocks (212) are embedded in adjacent square frames (214).

2. A 3D printing lifting and molding cabin according to claim 1, characterized in that: An assembly plate (202) is installed on the top of the assembly frame (201), and servo motors (208) are installed at the four corners of the bottom of the assembly plate (202). The output end of the servo motor (208) is connected to the other end of the adjacent lifting screw (207).

3. A 3D printing lifting and molding cabin according to claim 2, characterized in that: An integrated board (228) is installed at the bottom of the lifting bed (213), a laser transmitter (226) is installed at the top center of the assembly plate (202), and a laser receiver (227) is installed at the bottom center of the integrated board (228).

4. A 3D printing lifting and molding cabin according to claim 1, characterized in that: A sliding ear (215) is installed on one side of the bottom of the lifting bed (213) near the square frame (214), a sliding rod (216) is slidably installed inside the sliding ear (215), and a connecting ear (217) is welded on the outside of the sliding rod (216). One end of the sliding rod (216) passes through the adjacent square frame (214) and the connecting block (212), and a connecting spring (218) is connected between the sliding ear (215) and the adjacent connecting ear (217). The other end of the sliding rod (216) is rotatably connected to a fixed ear (219), and a fixing rod (220) is welded on one side of the bottom of the lifting bed (213) near the fixed ear (219).

5. A 3D printing lifting and molding cabin according to claim 3, characterized in that: A plurality of electric heating plates (229) are evenly installed at the bottom of the lifting bed (213) and on the top of the integrated board (228).

6. A 3D printing lifting and molding cabin according to claim 2, characterized in that: An annular cylinder (221) is installed on the top of the assembly plate (202) and located outside the lifting screw (207); an annular cylinder (221) is also installed on the top of the linkage plate (209) and located outside the lifting screw (207); an annular cylinder (221) is also installed on the bottom of the linkage plate (209) and located outside the lifting screw (207); and an annular cylinder (221) is also installed on the bottom of the support frame (206) and located outside the lifting screw (207); A fixing ring (222) is provided inside the annular cylinder (221), and arc-shaped plates (224) are connected to both sides of the annular cylinder (221) via a plurality of fixing springs (223). A dustproof bellows (225) is connected between the two opposing annular cylinders (221), and both ends of the dustproof bellows (225) are respectively located between adjacent fixing rings (222) and arc-shaped plates (224).

7. A 3D printing lifting and molding cabin according to claim 5, characterized in that: A sealed dust removal assembly (3) is provided inside the cabinet (1), and the sealed dust removal assembly (3) comprises a lifting electric push rod (301); Both sides of the cabinet (1) are equipped with lifting electric push rods (301), the output end of the lifting electric push rod (301) passes through the assembly plate (202) and is connected to a dust collection box (302), a dust collection port (303) is provided on one side of the dust collection box (302), a dust collection bellows (304) is connected between the two ends of the bottom of the dust collection box (302) and the top of the assembly plate (202), and a dust conveying main pipe (305) is connected between the bottom of the assembly plate (202) and the bottom of the corresponding dust collection bellows (304); The middle of the bottom of the dust conveying main pipe (305) is connected to a connecting cylinder (306), a purification box (307) is installed at the bottom of the connecting cylinder (306), a telescopic outer cylinder (308) is connected to the top of the purification box (307), a telescopic inner cylinder (309) is slidably connected inside the telescopic outer cylinder (308), a magnet ring (310) is connected to the top of the telescopic inner cylinder (309), the bottom of the inner side of the connecting cylinder (306) is connected to a filter frame (311) by means of a threaded rotation, and a filter (312) is bonded inside the filter frame (311); An air pump (316) is installed at the bottom of the purification box (307). The air extraction end of the air pump (316) is connected to the bottom of the purification box (307). The exhaust end of the air pump (316) is connected to one end of an exhaust pipe (317). The other end of the exhaust pipe (317) passes through one side of the cabinet (1).

8. A 3D printing lifting and molding cabin according to claim 7, characterized in that: A drawer box (313) is movably embedded in the purification box (307), a plurality of communication holes (315) are evenly opened at the bottom of the drawer box (313), and a filter element (314) is filled in the drawer box (313).

9. The 3D printing lifting and molding cabin according to claim 7, characterized in that: A sealing side panel (318) is connected between two adjacent columns (203), and three sealing side panels (318) are provided. Assembly sliders (319) are welded at equal intervals on both sides of the sealing side panels (318), and the assembly sliders (319) are embedded in the adjacent trapezoidal grooves (204). The outer side of the assembly slider (319) is tightly fitted with the inner side of the trapezoidal groove (204). A door (320) is hinged on one side of one of the sealing side panels (318), and air intake filters (321) are installed at the openings on both sides of the top of the cabin top panel (205).

10. The 3D printing lifting and molding cabin according to claim 7, characterized in that: The input ends of the servo motor (208), the laser transmitter (226), the laser receiver (227), the electric heater (229), the pressure sensor (230), the lifting electric push rod (301), and the air pump (316) are electrically connected to the output end of the external power supply through the controller.

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