Intelligent 3D printing equipment

Abstract

This invention discloses an intelligent 3D printing device, belonging to the technical field of 3D printing equipment. It includes a housing, within which a horizontally mounted turntable is rotatably installed. A vertically mounted partition is provided on the upper side of the turntable, with its lower end abutting the upper end of the turntable and its upper end fixedly connected to the side wall of the housing. The partition divides the upper space of the turntable into a forming chamber and a taking-out chamber. Three sets of platforms are equidistantly arranged on the circumference of the turntable. Within the housing, corresponding to each platform are a printing station, a material taking-out station, and a material loading station. Each time the turntable rotates, the positions of the platforms alternate sequentially, allowing each platform to dock with the printing station, material taking-out station, and material loading station respectively. This intelligent 3D printing device, by using a rotatable turntable, enables simultaneous loading and unloading of materials in the forming chamber, reducing waiting time and allowing continuous printing operations in the forming chamber.

Description

Technical Field

[0001] The present invention belongs to the technical field of 3D printing equipment, and in particular relates to an intelligent 3D printing equipment. Background Art

[0002] Additive manufacturing (also known as laser selective melting or metal 3D printing) technology is a new processing method that has emerged in recent years. The raw materials used in this technology are all powders of tens to hundreds of microns. During the forming process, the powder is evenly spread on the forming substrate through the powder supply mechanism and the powder spreading mechanism, and then the powder in the specific geometric shape area of ​​the surface is melted by energy sources such as laser to produce metallurgical bonding, and finally the parts are grown layer by layer to achieve the three-dimensional forming process.

[0003] In the 3D printing process, especially for the 3D printing of metal powder, laser melting technology is used to melt the metal powder to form functional solid parts. When manufacturing parts, it is necessary to first use a scraper to evenly distribute the metal layer, and then melt each metal layer separately in an inert gas air environment.

[0004] At present, the operating room of 3D printing equipment is often equipped with a sealed door. When 3D printing is performed, the sealed door is closed to isolate it from the outside. When the finished product needs to be taken out after printing, the sealed door needs to be opened again. In this process, air will re-enter the operating room, resulting in the need for a purge operation before each printing to refill the printing chamber with inert gas such as argon to maintain an inert gas environment. However, since the purge requires a long waiting time and a purge is required for each printing, the efficiency is low and continuous operation cannot be achieved.

[0005] To this end, we propose an intelligent 3D printing device to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to solve the problem in the prior art that 3D printing equipment cannot print during air washing, resulting in low efficiency, and to propose an intelligent 3D printing equipment.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] An intelligent 3D printing device comprises a shell, a horizontally arranged turntable is rotatably installed in the shell, a vertically arranged partition is provided on the upper side of the turntable, the lower end of the partition is in contact with the upper end of the turntable, the upper end of the partition is fixedly connected to the side wall of the shell, and the partition divides the upper space of the turntable into a molding chamber and a taking-out chamber;

[0009] Three groups of storage tables are equidistantly arranged on the circumference of the turntable, and a printing station, a material picking station and a material loading station are respectively arranged at positions corresponding to the storage tables in the shell. When the turntable rotates each time, the positions of the storage tables are alternated in sequence, so that the storage tables can be docked with the printing station, the material picking station and the material loading station respectively;

[0010] The partition is provided with a clearance opening, which corresponds to the moving track of the storage table, so that when the storage table rotates with the turntable, the finished products on the storage table can smoothly pass through the clearance opening, and a sealing door is slidably provided at the clearance opening;

[0011] The partition is provided with a driving mechanism for driving the sealing door to open and close and the turntable to rotate, so that after the sealing door is opened, the turntable can rotate to transfer the finished products in the molding chamber to the taking-out chamber.

[0012] Preferably, the driving mechanism comprises a first electric cylinder, the output end of the first electric cylinder is fixedly connected to a connecting frame, the connecting frame is fixedly connected to a sealing door, the sealing door is slidably arranged on a partition, and the sliding direction of the sealing door is parallel to the output direction of the first electric cylinder;

[0013] A rotating shaft is fixedly connected at the center of the rotating disk, a gear is connected to the rotating shaft via a one-way bearing, and a rack that can mesh with the gear is provided on the connecting frame;

[0014] The one-way bearing has two states, locked and unlocked. When the connecting frame drives the sealing door to slide outward, causing the rack to act on the gear and drive the gear to rotate forward, the one-way bearing is in a locked state, allowing the rotating shaft to rotate with the gear; when the connecting frame drives the sealing door to slide and reset, causing the gear to rotate in the opposite direction, the one-way bearing is in an unlocked state, preventing the rotating shaft from rotating.

[0015] Preferably, a sliding rod is fixedly connected to the side wall of the partition, the length direction of the sliding rod is consistent with the driving direction of the first electric cylinder, and a sliding sleeve is fixedly connected to the sealing door, and the sliding sleeve is slidably arranged on the sliding rod.

[0016] Preferably, a mounting groove is provided in the partition, the rotating shaft is arranged in the mounting groove, a through groove is provided on the side wall of the mounting groove, and the gear is arranged in the through groove;

[0017] The connecting frame includes a connecting bar, the rack is arranged on the side wall of the connecting bar close to the gear, and dustproof edges are respectively arranged on both sides of the connecting bar, so that the gear is located in the isolation space formed by the partition, the connecting bar and the dustproof edge.

[0018] Preferably, a placement slot matching the placement table is provided on the turntable, and the placement table is arranged in the placement slot;

[0019] A second electric cylinder is provided at the bottom of the shell, and a material taking pipe corresponding to the material taking station is installed at the upper end of the shell. The second electric cylinder can push the storage table and the finished products on the storage table upward and send them into the material taking pipe.

[0020] Preferably, a sealing groove is provided at the inner bottom of the storage table, the sealing groove is connected to the outside through a plurality of air inlet channels, and a placement seat is provided at the notch of the sealing groove;

[0021] A sealing cover is provided at the upper end of the material taking pipe, and a docking groove is opened at the lower end of the material taking pipe. A plurality of air washing channels are provided on the side walls of the docking groove. When the storage table moves into the docking groove, the air washing channel is connected with the air inlet channel, so that the gas can be transported into the sealing groove, and then the storage seat is pushed to move upward under the action of air pressure.

[0022] Preferably, a bearing ring is provided at the notch of the sealing groove, the placement seat is located at the upper end of the bearing ring, a plurality of limiting holes are provided on the placement seat, a plurality of limiting columns are fixedly connected to the upper end of the bearing ring, and the limiting holes are adapted to the limiting columns.

[0023] Preferably, a limiting tube is fixedly connected to the side wall of the material taking tube, and the limiting hole matches the limiting tube.

[0024] Preferably, the upper and lower ends of the position limiting tube are both provided with openings, and a control valve is provided at the upper opening of the position limiting tube.

[0025] Preferably, the sealing cover is provided with a pressure relief hole, and a sealing plug is provided at the outlet of the pressure relief hole.

[0026] To sum up, the technical effects and advantages of the present invention are as follows: the intelligent 3D printing equipment, by setting a rotatable turntable, can realize the synchronous loading and unloading of materials in the molding chamber, reduce waiting time, and during air washing, the inside of the shell remains airtight, so that air washing and printing can be carried out simultaneously, so that the molding chamber can continuously perform printing operations.

[0027] At the same time, by setting up a feeding pipe, the present application can utilize the pressure generated during gas washing to drive the placement seat to automatically move outward, thereby facilitating the removal of the finished product, combining the material removal link with the gas washing link, simplifying the structure, and shortening the time.

[0028] Finally, when taking out the finished product, the present application uses the storage table to seal the bottom of the feeding pipe, and only needs to replenish the air in the feeding pipe. There is no need for large-scale air washing operations, which saves energy and further improves the efficiency of air washing. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1It is a schematic diagram of the external structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0031] Figure 3 It is a schematic diagram of the positional relationship between the partition plate and the rotating disk in the present invention;

[0032] Figure 4 It is a schematic diagram of the positional relationship between the sealing door and the partition in the present invention;

[0033] Figure 5 It is a schematic diagram of the positional relationship between the rotating shaft and the connecting bar in the present invention;

[0034] Figure 6 It is a schematic diagram of the positional relationship between the material taking pipe and the second electric cylinder in the present invention;

[0035] Figure 7 It is a schematic diagram of the structure of the storage table and the placement seat in the present invention;

[0036] Figure 8 It is a schematic cross-sectional structural diagram of the storage table in the present invention;

[0037] Fig. 9 It is a schematic cross-sectional structure diagram of the material taking pipe in the present invention;

[0038] Fig.10 It is a structural schematic diagram of the sealing cover in the present invention;

[0039] Fig.11 The position state of the placement seat in the present invention is shown in FIG. Figure 1 ;

[0040] Fig.12 The position state of the placement seat in the present invention is shown in FIG. Figure 2 ;

[0041] Fig.13 The position state of the placement seat in the present invention is shown in FIG. Figure 3 .

[0042] In the figure: 1, housing; 11, second electric cylinder; 12, material taking pipe; 121, docking groove; 122, gas washing channel; 123, limit pipe; 13, sealing cover; 131, pressure relief hole; 132, reinforcement plug;

[0043] 2. Turntable; 21. Rotating shaft; 22. One-way bearing; 23. Gear; 24. Rack; 25. Placement slot;

[0044] 3. Partition plate; 31. Forming chamber; 32. Taking-out chamber; 33. Make-way opening; 34. Sliding rod;

[0045] 4. Storage table; 41. Sealing groove; 411. Air inlet channel; 412. Carrying ring; 413. Limiting column; 42. Placement seat; 421. Limiting hole;

[0046] 5. Sealing door; 51. First electric cylinder; 52. Connecting frame; 53. Sliding sleeve; 54. Connecting strip; 541. Dustproof edge. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0048] like Figure 1-Figure 13 As shown, an intelligent 3D printing device includes a housing 1, which is a cylindrical housing structure as a whole. A horizontally arranged turntable 2 is rotatably installed in the housing 1. The turntable 2 coincides with the axis of the housing 1, and the turntable 2 divides the housing 1 into an upper part and a lower part. The upper part is an operating room, and the lower part is an auxiliary mechanism installation area.

[0049] A vertically arranged partition 3 is provided on the upper side of the turntable 2. The partition 3 is arranged in the middle of the shell 1. The lower end of the partition 3 is in contact with the upper end of the turntable 2. The upper end of the partition 3 is fixedly connected to the side wall of the shell 1. The partition 3 divides the upper space of the turntable 2 into a forming cabin 31 and a taking-out cabin 32. The forming cabin 31 is used to perform printing operations, while the taking-out cabin 32 is used to take out the finished product and arrange a new substrate. The partition 3 is provided between the taking-out cabin 32 and the forming cabin 31 mainly to prevent the powder in the forming cabin 31 from contaminating the finished product and unused substrates. It should be noted that when in use, both the forming cabin 31 and the taking-out cabin 32 are washed and are in an inert gas environment.

[0050] Three groups of storage tables 4 are equidistantly arranged on the circumference of the turntable 2, that is, the three groups of storage tables 4 are 120 degrees apart. Printing stations, material picking stations and loading stations are provided at positions corresponding to each storage table 4 in the shell 1. The printing station is provided with a corresponding powder spreading mechanism, a light curing mechanism, a metal powder feeding mechanism, etc., which are mainly used to solidify the powder layer by layer onto the substrate for 3D printing. The material picking station is mainly used to take out the finished product after printing. The loading station is mainly used to arrange a new substrate on the storage table 4. A substrate loading mechanism is provided at the loading station, and the substrate can be placed on the storage table 4 at the loading station to prepare for the next printing.

[0051] Among them, a forming cylinder is arranged inside the storage table 4, and the substrate is arranged inside the forming cylinder through a lifting mechanism. When printing, each time a layer of powder is solidified, the lifting mechanism will automatically descend one layer in height. When all printing is completed, the lifting mechanism is used to directly push out the substrate, so that the finished product is exposed to the outside of the forming cylinder, so that the powder can be easily cleaned.

[0052] Each time the turntable 2 rotates, the positions of the storage tables 4 are alternated in sequence, so that the storage tables 4 can be docked with the printing station, the material taking station and the material loading station respectively. In this way, when the turntable 2 rotates, the process of taking out the finished material, the process of arranging the new substrate, and the process of moving the empty storage table 4 to the material loading station to prepare for the arrangement of the new substrate can be carried out simultaneously. Compared with the existing assembly line operation sequence, the operation method in this embodiment is simpler and more efficient.

[0053] At the same time, since the molding chamber 31 and the taking-out chamber 32 are independent of each other and do not interfere with each other, the finished product in the taking-out chamber 32 can be taken out while printing is being performed in the molding chamber 31, so that the molding chamber 31 has the function of continuous printing.

[0054] That is to say, the 3D printing equipment in this embodiment can optimize the structure of the printing equipment and the printing process by optimizing the structural layout of the molding chamber 31 and the removal chamber 32, as well as the loading and unloading structure and process, and can significantly improve the working efficiency.

[0055] The partition 3 is provided with a clearance opening 33, which corresponds to the moving track of the storage table 4. That is to say, when the storage table 4 rotates to the partition 3 with the turntable 2, the storage table 4 will be at the clearance opening 33. In order to prevent the printed product after cleaning the powder from being contaminated again, it is necessary to eject the substrate and the finished product to the outside of the molding cylinder. Therefore, in order to avoid interference between the finished product above the storage table 4 and the partition 3. When the storage table 4 rotates with the turntable 2, the finished product above the storage table 4 can smoothly pass through the clearance opening 33. A sealing door 5 is slidably provided at the clearance opening 33. The function of the sealing door 5 is to close the clearance opening 33, so that the partition 3 can remain in a closed state when the molding chamber 31 is in an operating state, and prevent metal dust from entering the removal chamber 32 next door.

[0056] It should be noted that a driving mechanism for driving the sealing door 5 to open and close and the turntable 2 to rotate is installed on the partition 3, so that after the sealing door 5 is opened, the turntable 2 can rotate to transfer the finished product in the molding chamber 31 to the removal chamber 32. In other words, the driving mechanism links the movement of the sealing door 5 and the rotation of the turntable 2 together, so that the turntable 2 will not rotate until the sealing door 5 is opened to expose the clearance opening 33, so as to avoid human operation errors and thus prevent the product from colliding with the sealing door 5.

[0057] Specifically, the driving mechanism includes a first electric cylinder 51, the output end of the first electric cylinder 51 is fixedly connected to a connecting frame 52, the connecting frame 52 is fixedly connected to the sealing door 5, the sealing door 5 is slidably set on the partition 3, and the sliding direction of the sealing door 5 is parallel to the output direction of the first electric cylinder 51. The sealing door 5 adopts a suspended design. Specifically, a sliding rod 34 is fixedly connected to the side wall of the partition 3, and the length direction of the sliding rod 34 is consistent with the driving direction of the first electric cylinder 51. A sliding sleeve 53 is fixedly connected to the sealing door 5, and the sliding sleeve 53 is slidably set on the sliding rod 34.

[0058] A rotating shaft 21 is fixedly connected at the center of the turntable 2. When the rotating shaft 21 rotates, it can drive the turntable 2 to rotate around its own axis. A gear 23 is connected to the rotating shaft 21 through a one-way bearing 22. When the gear 23 rotates in one direction, the power will be transmitted to the rotating shaft 21, and when the gear 23 rotates in the other direction, it will be separated from the rotating shaft 21, finally realizing the one-way rotation effect of the turntable 2, so as to drive multiple storage tables 4 to operate along the process steps of "printing station-material picking station-loading station-printing station".

[0059] The connecting frame 52 is provided with a rack 24 that can mesh with the gear 23. The rack 24 moves with the movement of the connecting frame 52, so that the engagement of the rack 24 with the gear 23 can be used to drive the rotating shaft 21. At the same time, it should be noted that the setting position of the rack 24 needs to meet the following requirements: when the sealing door 5 fully opens the clearance opening 33, the rack 24 can contact the gear 23 to prevent the rotating disk 2 from rotating before the sealing door 5 is opened.

[0060] Furthermore, a mounting groove is provided in the partition 3, and the rotating shaft 21 is arranged in the mounting groove. The upper end of the rotating shaft 21 is rotatably connected to the top of the shell 1, and a through groove is provided on the side wall of the mounting groove. The through groove passes through the front and back, and the gear 23 is arranged in the through groove, so that part of the teeth of the gear 23 can protrude from the outside of the partition 3 to facilitate contact and engagement with the rack 24.

[0061] The connecting frame 52 includes a connecting strip 54, and a through slot is opened on the side wall of the sealing door 5. The connecting strip 54 is fixedly connected in the through slot. The rack 24 is arranged on the side wall of the connecting strip 54 close to the gear 23. Furthermore, dustproof edges 541 are respectively provided on both sides of the connecting strip 54. The two dustproof edges 541 and the connecting strip 54 form a U-shaped structure, so that the gear 23 is located in the isolation space formed by the partition 3, the connecting strip 54, and the dustproof edge 541, thereby preventing the gear 23 and the rack 24 from being contaminated and ensuring that the gear 23 and the rack 24 can be stably engaged.

[0062] The one-way bearing 22 has two states: locked and unlocked. The locked state means that power can be transmitted between the inner ring and the outer ring of the one-way bearing 22, and the unlocked state means that power cannot be transmitted between the inner ring and the outer ring of the one-way bearing 22. The inner ring of the one-way bearing 22 is fixedly connected to the rotating shaft 21, and the outer ring is fixedly connected to the gear 23. Thus, the power transmission control between the gear 23 and the rotating shaft 21 can be realized through the one-way bearing 22. When the connecting frame 52 drives the sealing door 5 to slide outward, so that the rack 24 acts on the gear 23 and drives the gear 23 to rotate forward, the one-way bearing 22 is in a locked state, so that the rotating shaft 21 can rotate with the gear 23; when the connecting frame 52 drives the sealing door 5 to slide and reset, so that the gear 23 rotates in the reverse direction, the one-way bearing 22 is in an unlocked state, so that the rotating shaft 21 does not rotate.

[0063] By setting the one-way bearing 22, the gear 23 and the rack 24, the sealed door 5 can drive the turntable 2 to rotate after it is fully opened. Specifically, the position of each storage table 4 is replaced in sequence by rotating 120 degrees each time. When the sealed door 5 is reset, the position of the turntable 2 remains unchanged, thereby realizing automatic and intelligent control of the sealed door 5 and the turntable 2.

[0064] The mechanical method not only has a low cost but also a low failure rate. At the same time, it is not prone to errors, and the device can operate stably.

[0065] It should be noted that the storage table 4 can be removed from the turntable 2. The turntable 2 is provided with a placement groove 25 matching the storage table 4, and the storage table 4 is arranged in the placement groove 25. A supporting mechanism, such as a supporting block, a supporting ring, etc., is provided on the placement groove 25, which can support the storage table 4, and the storage table 4 can be separated from the turntable 2 by moving upward.

[0066] The bottom of the housing 1 is provided with a second electric cylinder 11, the output end of which is vertically upward, and the output end of the second electric cylinder 11 is provided with a structure such as a tray for increasing the contact surface with the bottom of the storage table 4. The upper end of the housing 1 is provided with a material taking pipe 12 corresponding to the material taking station, that is, the second electric cylinder 11 can push the storage table 4 and the finished product on the storage table 4 upward and send them into the material taking pipe 12. When the second electric cylinder 11 retracts, the storage table 4 can fall back into the placement slot.

[0067] It should be noted that a switch electrically connected to the second electric cylinder 11 is provided on the sliding rod 34. When the sealing door 5 is in a closed state, the sliding sleeve 53 on the sealing door 5 acts on the switch to connect the circuit of the second electric cylinder 11. When the sealing door 5 is in an open state and the sliding sleeve 53 is separated from the switch, the circuit of the second electric cylinder 11 is disconnected, thereby avoiding interference between the second electric cylinder 11 and the turntable 2.

[0068] The inner bottom of the storage table 4 is provided with a sealing groove 41, which is connected to the outside through a plurality of air inlet channels 411. A placement seat 42 is provided at the notch of the sealing groove 41. The placement seat 42 has a certain height and is hollow inside. The molding cylinder is arranged inside the placement seat 42. In the initial state, the lifting mechanism inside the molding cylinder can control the height of the substrate so that the substrate is not higher than the upper end of the placement seat 42, so that it can pass through the partition 3 smoothly. A bearing ring 412 is provided at the notch of the sealing groove 41, and the placement seat 42 is located at the upper end of the bearing ring 412. When the air pressure in the sealing groove 41 increases, it will act on the placement seat 42 and drive the placement seat 42 to move upward.

[0069] A sealing cover 13 is provided at the upper end of the feed pipe 12. During normal operation, the sealing cover 13 of the feed pipe 12 is in a closed state to prevent external air from entering. A docking groove 121 is provided at the lower end of the feed pipe 12. A plurality of gas washing channels 122 are provided on the side wall of the docking groove 121. The entrance of the gas washing channel 122 is connected to an external inert gas delivery device. When the storage table 4 moves into the docking groove 121, the storage table 4 and the docking groove 121 can form a sealed connection, and the gas washing channel 122 is connected to the air inlet channel 411, so that the gas can be transported into the sealing groove 41, and then the placement seat 42 is pushed upward under the action of air pressure. It should be noted that the inner diameter of the feed pipe 12 is the same as the outer diameter of the placement seat 42, so that the placement seat 42 can maintain a closed connection with the inner wall of the feed pipe 12 during the upward movement.

[0070] The placement seat 42 is provided with a plurality of limiting holes 421 , and a plurality of limiting posts 413 are fixedly connected to the upper end of the carrying ring 412 . The limiting holes 421 are adapted to the limiting posts 413 , so that the placement seat 42 and the storage table 4 do not rotate relative to each other, and the position of the placement seat 42 is stable.

[0071] A limiting tube 123 is fixedly connected to the side wall of the material taking tube 12, and the limiting hole 421 matches the limiting tube 123. Under the action of the limiting tube 123, when the placement seat 42 enters the material taking tube 12, it can limit the placement seat 42, so that the placement seat 42 can slide up and down stably along the material taking tube 12 in the material taking tube 12.

[0072] In addition, the upper and lower ends of the position limiting tube 123 are both provided with openings, and a control valve is provided at the upper end opening of the position limiting tube 123. Under the action of the control valve, the connection or closing of the upper and lower openings of the position limiting tube 123 can be controlled. When the placement seat 42 moves upward, the control valve remains in a closed state, so that the placement seat 42 can continue to move upward under the action of air pressure. When the placement seat 42 needs to be lowered, the control valve remains in an open state, so that the space above and below the placement seat 42 is connected, and the gas can flow, so that the placement seat 42 can move downward under the action of its own gravity until it falls into the storage table 4 to achieve reset.

[0073] In this process, the position limiting tube 123 plays a role of limiting on the one hand, and can also control the communication between the space above and below the placement seat 42 on the other hand, so as to cooperate with the air pressure to realize the rise and fall of the placement seat 42. Then, the gas input during the gas washing process can be used to drive the placement seat 42, so as to take the finished product out of the shell 1.

[0074] After taking out the finished product, in order to exhaust the air between the sealing cover 13 and the placement seat 42, a pressure relief hole 131 is provided on the sealing cover 13, and a sealing plug is provided at the outlet of the pressure relief hole 131. At the same time, a reinforcing plug 132 is fixedly connected to the inner wall of the sealing cover 13, and a makeshift groove adapted to each limiting tube 123 is provided on the reinforcing plug 132, so that when the sealing cover 13 closes the opening at the upper end of the material taking tube 12, the reinforcing plug 132 can squeeze out the air between the sealing cover 13 and the placement seat 42 as much as possible.

[0075] It should be noted that in order to further completely exclude external air, after closing the sealing cover 13, the sealing plug on the sealing cover 13 can be opened, and the control valve on the limiting tube 123 can be opened, and then the inert gas can continue to be input into the sealing groove 41 through the air washing channel and the air inlet channel, so that the inert gas is discharged outward along the upper end of the limiting tube 123, thereby completely excluding the air, and finally the sealing plug can be closed.

[0076] Here’s how this application works:

[0077] When in use, the housing 1 is kept in an inert gas environment, and the sealing cover 13 is in a closed state. When the molding chamber 31 is printed and the metal powder is cleaned, the first electric cylinder 51 is started to open the sealing door 5. After the sealing door 5 is fully opened, the rack 24, the gear 23, the one-way bearing 22 and the rotating shaft 21 are linked to drive the turntable 2 to rotate 120 degrees, so that the positions of each storage table 4 are replaced in sequence, so that the empty storage table 4 at the material-retrieving station can be rotated to the loading station, and the loading is completed by the mechanical arm. The new substrate is fixed and installed, and the storage table 4 carrying the finished product at the printing station is rotated to the material-retrieving station, waiting for the material to be retrieved, and the storage table 4 with the new substrate placed at the loading station is rotated to the printing station. Then the sealing door 5 is closed, and the printing station continues to print.

[0078] Then start the second electric cylinder 11, lift the storage table 4 carrying the finished product at the material-retrieving station upward until the storage table 4 contacts the docking groove 121, close the lower end of the material-retrieving pipe 12, and connect the washing channel 122 with the air inlet channel 411, then open the sealing cover 13, input a large amount of inert gas into the sealing groove 41 inside the storage table 4, and under the action of air pressure, make the placement seat 42 continue to move upward along the material-retrieving pipe 12 and finally move to the top, after the finished product is removed, close the sealing cover 13, and then open the control valve of the limit tube 123, so that the placement seat 42 falls back into the storage table 4 under the action of gravity. Finally, the second electric cylinder 11 is reset, so that the storage table 4 falls back into the placement groove 25 at the material-retrieving station.

[0079] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An intelligent 3D printing device, comprising a housing (1), It is characterized in that A horizontally arranged turntable (2) is rotatably mounted in the shell (1); a vertically arranged partition (3) is provided on the upper side of the turntable (2); the lower end of the partition (3) is in contact with the upper end of the turntable (2); the upper end of the partition (3) is fixedly connected to the side wall of the shell (1); the partition (3) divides the upper space of the turntable (2) into a forming chamber (31) and a removal chamber (32); Three groups of storage tables (4) are equidistantly arranged on the circumference of the turntable (2); a printing station, a material taking station and a material loading station are respectively arranged at positions corresponding to the storage tables (4) in the housing (1); and each time the turntable (2) rotates, the positions of the storage tables (4) are alternated in sequence, so that each storage table (4) can be docked with the printing station, the material taking station and the material loading station respectively; The partition plate (3) is provided with a clearance opening (33), and the clearance opening (33) corresponds to the moving track of the storage table (4), so that when the storage table (4) rotates with the turntable (2), the finished products above the storage table (4) can smoothly pass through the clearance opening (33), and a sealing door (5) is slidably provided at the clearance opening (33); A driving mechanism for driving the sealing door (5) to open and close and the turntable (2) to rotate is installed on the partition plate (3), so that after the sealing door (5) is opened, the turntable (2) can rotate to transfer the finished product in the molding chamber (31) to the removal chamber (32); The driving mechanism comprises a first electric cylinder (51), an output end of the first electric cylinder (51) being fixedly connected to a connecting frame (52), the connecting frame (52) being fixedly connected to a sealing door (5), the sealing door (5) being slidably disposed on the partition (3), and a sliding direction of the sealing door (5) being parallel to an output direction of the first electric cylinder (51); A rotating shaft (21) is fixedly connected to the center of the rotating disk (2), a gear (23) is connected to the rotating shaft (21) via a one-way bearing (22), and a rack (24) capable of meshing with the gear (23) is provided on the connecting frame (52); The one-way bearing (22) has two states: a locked state and an unlocked state. When the connecting frame (52) drives the sealing door (5) to slide outward, so that the rack (24) acts on the gear (23) and drives the gear (23) to rotate in the forward direction, the one-way bearing (22) is in a locked state, so that the rotating shaft (21) can rotate with the gear (23); when the connecting frame (52) drives the sealing door (5) to slide and reset, so that the gear (23) rotates in the reverse direction, the one-way bearing (22) is in an unlocked state, so that the rotating shaft (21) does not rotate. The rotating disk (2) is provided with a placement groove (25) matching with the placement table (4), and the placement table (4) is arranged in the placement groove (25); A second electric cylinder (11) is provided at the bottom of the housing (1), and a material taking pipe (12) corresponding to the material taking station is installed at the upper end of the housing (1), and the second electric cylinder (11) can push the storage table (4) and the finished product on the storage table (4) upwards and send them into the material taking pipe (12); The inner bottom of the storage platform (4) is provided with a sealing groove (41), the sealing groove (41) is connected to the outside through a plurality of air inlet channels (411), and a placement seat (42) is provided at the notch of the sealing groove (41); A sealing cover (13) is provided at the upper end of the material taking pipe (12), a docking groove (121) is provided at the lower end of the material taking pipe (12), and a plurality of air washing channels (122) are provided on the side wall of the docking groove (121); when the storage table (4) moves into the docking groove (121), the air washing channels (122) are connected with the air inlet channels (411), so that gas can be transported into the sealing groove (41), thereby pushing the storage seat (42) to move upward under the action of gas pressure.

2. The intelligent 3D printing device according to claim 1, It is characterized in that A sliding rod (34) is fixedly connected to the side wall of the partition (3), and the length direction of the sliding rod (34) is consistent with the driving direction of the first electric cylinder (51). A sliding sleeve (53) is fixedly connected to the sealing door (5), and the sliding sleeve (53) is slidably arranged on the sliding rod (34).

3. The intelligent 3D printing device according to claim 1, It is characterized in that The partition plate (3) is provided with a mounting groove, the rotating shaft (21) is arranged in the mounting groove, a through groove is provided on the side wall of the mounting groove, and the gear (23) is arranged in the through groove; The connecting frame (52) comprises a connecting bar (54), the rack (24) being arranged on a side wall of the connecting bar (54) close to the gear (23), and dustproof edges (541) being respectively arranged on both sides of the connecting bar (54), so that the gear (23) is located in an isolated space formed by the partition plate (3), the connecting bar (54) and the dustproof edges (541).

4. The intelligent 3D printing device according to claim 1, It is characterized in that A bearing ring (412) is provided at the notch of the sealing groove (41), the placement seat (42) is located at the upper end of the bearing ring (412), a plurality of limiting holes (421) are provided on the placement seat (42), a plurality of limiting columns (413) are fixedly connected to the upper end of the bearing ring (412), and the limiting holes (421) are adapted to the limiting columns (413).

5. The intelligent 3D printing device according to claim 4, It is characterized in that A limiting tube (123) is fixedly connected to the side wall of the material taking tube (12), and the limiting hole (421) matches the limiting tube (123).

6. The intelligent 3D printing device according to claim 5, It is characterized in that The upper and lower ends of the position limiting tube (123) are both provided with openings, and a control valve is provided at the upper opening of the position limiting tube (123).

7. The intelligent 3D printing device according to claim 6, It is characterized in that The sealing cover (13) is provided with a pressure relief hole (131), and a sealing plug is provided at the outlet of the pressure relief hole (131).

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