CN115416296A - Multifunctional large-scale inkjet printing 3D printer - Google Patents
Multifunctional large-scale inkjet printing 3D printer Download PDFInfo
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- CN115416296A CN115416296A CN202211149962.4A CN202211149962A CN115416296A CN 115416296 A CN115416296 A CN 115416296A CN 202211149962 A CN202211149962 A CN 202211149962A CN 115416296 A CN115416296 A CN 115416296A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/209—Heads; Nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/255—Enclosures for the building material, e.g. powder containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
Abstract
The invention discloses a multifunctional large-scale inkjet printing 3D printer which comprises a workbench, wherein a three-dimensional movement mechanism is arranged on the workbench, a nozzle assembly is arranged on the three-dimensional movement mechanism, and the nozzle assembly is fixedly connected with the three-dimensional movement mechanism through an L-shaped connecting plate; the spray head assembly comprises a spray nozzle which is detachably connected and a dismounting device which is used for automatically dismounting the spray head; a nozzle fixing box is arranged on the workbench, and a plurality of nozzles with different specifications are fixed in the nozzle fixing box; the nozzle in the shower nozzle subassembly can be dismantled the connection, when need change the nozzle kind or need maintain the nozzle, can dismantle the nozzle in the shower nozzle subassembly through the automatic nozzle of being directed at in dismounting device and change, need not to maintain the complete machine, has brought very big convenience for the maintenance work in later stage. Can match different nozzles to different printing consumables simultaneously, and then realize making different products through 3D printing technique, solve because of the single product limitation serious problem that leads to the 3D printer to produce of shower nozzle subassembly kind.
Description
Technical Field
The invention belongs to the technical field of 3D printing and particularly relates to a multifunctional large-scale inkjet printing 3D printer.
Background
A 3D printer is also called a three-dimensional printer, and is an accumulated manufacturing technology that performs three-dimensional printing by using an inkjet method, that is, a device of a rapid prototyping technology. 3D printing is typically implemented using digital technology material printers. The method is often used for manufacturing models in the fields of mold manufacturing, industrial design and the like, and is gradually used for directly manufacturing some products, and parts printed by the technology exist.
At present, the 3D printer adopts an integrated design principle, all equipment leaves the factory and configures a spray head, and a user changes the difficulty by himself, so that the 3D printer can only be suitable for specific consumables, the limitation of the manufactured products is very serious, and the utilization rate of the products is influenced. Simultaneously the most common trouble of 3D printer among the prior art is the shower nozzle jam, the silk problem does not go out, efficiency and quality are printed in the influence, and most of card silk and the stifled silk condition appear in nozzle or choke pipe department, but 3D prints the shower nozzle subassembly and generally assembles together through screw thread mounting and supplementary accessories, in the clearance, when installation and dismantlement, all need use the spanner, instrument such as screwdriver are dismantled, the dismantlement in-process, not only cause the damage to the work piece that meticulous 3D printed and made easily, and dismantle inefficiency, the maintenance work in later stage has brought very big inconvenience.
Disclosure of Invention
The invention aims to provide a multifunctional large-scale inkjet printing 3D printer aiming at the defects in the prior art, and solves the problems that in the prior art, the 3D printer is serious in product limitation and inconvenient for subsequent maintenance due to the fact that a nozzle assembly is single in type and not easy to replace.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides a multifunctional large-scale inkjet printing 3D printer which comprises a workbench, wherein a three-dimensional movement mechanism is arranged on the workbench, a spray head assembly is arranged on the three-dimensional movement mechanism, and the spray head assembly is fixedly connected with the three-dimensional movement mechanism through an L-shaped connecting plate;
the nozzle assembly comprises an ink supply device and an ink jet device, wherein the ink supply device comprises an ink box, a delivery pump and a delivery pipe, which are positioned on the horizontal top surface of the L-shaped connecting plate;
the ink jet device comprises an ink jet cavity fixedly connected with the vertical inner side surface of the L-shaped connecting plate, at least one loading head which is communicated with the interior of the ink jet cavity and is of a hollow structure is arranged at the bottom of the ink jet cavity, and a nozzle is assembled on the loading head in an interference fit manner;
consumable materials in the ink box are conveyed to the nozzles through the conveying pump and the conveying pipe sequentially through the ink jet cavity loading head;
the ink jet device is provided with a dismounting device for dismounting the nozzle from the loading head;
the workbench is provided with a nozzle fixing box, and a plurality of nozzles with different specifications are fixed in the nozzle fixing box.
Furthermore, a circular channel penetrates through the interior of the ink-jet cavity, and the delivery pipe penetrates through the cavity wall of the ink-jet cavity and is communicated with the circular channel; the top end of the loading head is in threaded connection with the bottom of the circular channel; the dismounting device is positioned at the top of the ink-jet cavity and comprises a first linear motor arranged on the horizontal top surface of the L-shaped connecting plate, the output end of the first linear motor is vertically arranged, a piston rod is arranged on the output end of the first linear motor, the piston rod is positioned in the circular channel, the piston rod is movably and hermetically connected with the top of the circular channel through a sealing ring or a sealing ring, the diameter of the piston rod is smaller than the inner diameter of the loading head, and the first linear motor drives the piston rod to vertically move; the inside of nozzle is provided with dismantles the ring, the diameter of dismantling the ring is less than the diameter of piston rod.
Furthermore, the nozzle is of a hollow conical structure, the inner wall of the large-diameter end of the nozzle is convexly provided with an installation ring, the small-diameter end of the nozzle is provided with a nozzle opening, and the disassembly ring is arranged in the middle of the nozzle; and an annular groove matched with the mounting ring is formed in the circumferential outer wall of the loading head.
Furthermore, a plurality of first mounting holes for fixing nozzles of different specifications and a plurality of empty second mounting holes are formed in the nozzle fixing box;
a plurality of first mounting hole and second mounting hole are a style of calligraphy range and alternate interval setting each other, and are a plurality of the bottom of first mounting hole and second mounting hole all holds the chamber intercommunication with one, hold the chamber and set up towards the fixed box of nozzle one side lateral wall slope, the fixed box of nozzle is located and is provided with the passageway of excreting on the lateral wall that holds chamber slope one side, it is provided with the switching lid to excrete on the passageway.
Further, the three-dimensional motion mechanism comprises a z-axis motion mechanism, an x-axis motion mechanism and a y-axis motion mechanism;
the z-axis movement mechanism comprises two support columns arranged on two sides of the length direction of the workbench, a second linear motor is arranged in each support column, the two second linear motors move synchronously, and a rectangular frame is arranged at the output ends of the two second linear motors;
the y-axis movement mechanism comprises a movable cross beam and a stepping motor arranged in the middle of one side of the rectangular frame in the width direction, a driving belt pulley is arranged at the output end of the stepping motor, a driven belt pulley is rotatably arranged on the other side of the rectangular frame in the width direction, and the driving belt pulley and the driven belt pulley are in transmission through a belt;
the top parts of two sides of the rectangular frame in the length direction are respectively provided with a sliding rail, and the two sliding rails are arranged along the y-axis direction; the two ends of the movable cross beam are respectively provided with a sliding chute in sliding fit with the two sliding rails, the movable cross beam is positioned below the belt, and the top of the movable cross beam is provided with a synchronous belt pressing plate for fixedly connecting the belt;
the x-axis movement mechanism comprises a lead screw transmission mechanism arranged on the lower end face of the movable cross beam, and the lead screw transmission mechanism is used for driving the L-shaped connecting plate to slide linearly in a reciprocating mode along the length direction of the movable cross beam.
Furthermore, the lead screw transmission mechanism comprises a transmission lead screw and a guide rod which are arranged along the length direction of the movable cross beam, movable sliding blocks are arranged on the transmission lead screw and the guide rod, the movable sliding blocks are in threaded connection with the transmission lead screw, and the movable sliding blocks are in sliding connection with the guide rod; the outer side wall of the L-shaped connecting plate is fixedly connected with the side wall of the movable sliding block; two ends of the transmission screw rod are respectively and fixedly connected with the lower end face of the movable cross beam through bearing seats; one side end of the transmission screw rod is connected with a driving motor through a coupler.
Furthermore, the number of the loading heads is multiple, and each loading head is matched with one circular channel; the number of the ink boxes is the same as that of the loading heads, the ink boxes and the loading heads are in one-to-one matching relationship, and each ink box is matched with one conveying pump and one conveying pipe.
Furthermore, a plurality of different printing consumables are arranged in the plurality of ink boxes.
Furthermore, the multifunctional large-scale inkjet printing 3D printer also comprises a controller, wherein the delivery pump, the first linear motor, the second linear motor, the stepping motor and the driving motor are electrically connected with the controller;
the ink box and the delivery pipe are internally provided with a plurality of electric control valves electrically connected with the controller to control the input and output of ink, and the ink box is internally provided with a pressure sensor to sense the allowance of printing consumables.
The invention provides a multifunctional large-scale inkjet printing 3D printer which has the following beneficial effects:
1. the nozzle in the shower nozzle subassembly can be dismantled with the loading head and be connected, when need changing the nozzle kind or need maintain the nozzle, can dismantle the nozzle in the shower nozzle subassembly through the automatic nozzle of dismounting device and change, need not to maintain the complete machine, has brought very big convenience for the maintenance work in later stage. Can match different nozzles to different printing consumables simultaneously, and then realize making different products through 3D printing technique, solve the problem that the product limitation that leads to the 3D printer to manufacture is serious because of shower nozzle subassembly type is single.
2. Be provided with the printing consumables of multiple difference in the ink horn, can realize that various functions of beating, and the setting of the nozzle of different specifications not only can realize that same printing object uses the raw and other materials of different thicknesses to accomplish, can also realize that the multinozzle prints, has effectively improved work efficiency, realizes the production of integrating of 3D printing product.
Drawings
Fig. 1 is a schematic top view of a multifunctional large inkjet printing 3D printer.
Fig. 2 is a schematic side view of a multifunctional large inkjet printing 3D printer.
Fig. 3 is a front view of the movable beam.
Fig. 4 is an enlarged schematic view of a portion a in fig. 3.
FIG. 5 is a schematic diagram of the internal cross-sectional structure of the ink-jet chamber.
Fig. 6 is an enlarged schematic view of the structure at B in fig. 5.
Fig. 7 is a schematic view showing an internal sectional structure of the nozzle fixing cartridge.
Wherein, 1, a workbench; 2. a showerhead assembly; 3. an L-shaped connecting plate; 4. an ink supply device; 401. an ink cartridge; 402. a delivery pump; 403. a delivery pipe; 5. an ink jet device; 501. an ink jet chamber; 502. a loading head; 503. a nozzle; 6. disassembling the device; 601. a first linear motor; 602. a piston rod; 7. a nozzle fixing box; 8. a circular channel; 9. disassembling the ring; 10. a mounting ring; 11. a spout; 12. an annular groove; 13. a first mounting hole; 14. a second mounting hole; 15. an accommodating chamber; 16. a drainage channel; 17. an opening and closing cover; 18. a support pillar; 19. a second linear motor; 20. a rectangular frame; 21. moving the beam; 22. a stepping motor; 23. a drive pulley; 24. a driven pulley; 25. a slide rail; 26. a chute; 27. pressing plates of a synchronous belt; 28. a transmission screw rod; 29. a guide rod; 30. moving the slide block; 31. a bearing seat; 32. the motor is driven.
Detailed Description
The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and it will be apparent to those skilled in the art that various changes may be made without departing from the spirit and scope of the invention as defined and defined by the appended claims, and all changes that can be made by the invention using the inventive concept are intended to be protected.
As shown in fig. 1 and 7, the invention provides a multifunctional large-scale inkjet printing 3D printer, which comprises a workbench 1 and a controller, wherein a three-dimensional movement mechanism is arranged on the workbench 1, a nozzle assembly 2 is arranged on the three-dimensional movement mechanism, and the nozzle assembly 2 is fixedly connected with the three-dimensional movement mechanism through an L-shaped connecting plate 3;
as shown in fig. 1 and 4, the head assembly 2 includes an ink supply device 4 and an ink ejection device 5, the ink supply device 4 includes an ink cartridge 401 located on a horizontal top surface of the L-shaped connection plate 3, a delivery pump 402, and a delivery pipe 403;
the ink jet device 5 comprises an ink jet cavity 501 fixedly connected with the vertical inner side surface of the L-shaped connecting plate 3, at least one loading head 502 which is communicated with the interior of the ink jet cavity 501 and is of a hollow structure is arranged at the bottom of the ink jet cavity 501, and a nozzle 503 is assembled on the loading head 502 in an interference fit manner;
consumables in the ink box 401 are conveyed to a nozzle 503 through the conveying pump 402 and the conveying pipe 403 sequentially through the loading head 502 of the ink jet cavity 501; the ink jet device 5 is provided with a detaching device 6 for detaching the nozzle 503 from the loading head 502;
the workbench 1 is provided with a nozzle fixing box 7, and a plurality of nozzles 503 with different specifications are fixed in the nozzle fixing box 7.
As shown in fig. 7, the nozzle 503 detached from the loading head 502 is accommodated in the nozzle fixing box 7, and as a specific arrangement of the nozzle fixing box 7, a plurality of first mounting holes 13 for fixing nozzles 503 of different specifications and a plurality of empty second mounting holes 14 are provided in the nozzle fixing box 7; a plurality of first mounting hole 13 and second mounting hole 14 are the straight line type and arrange and alternate interval each other and set up, and a plurality of the bottom of first mounting hole 13 and second mounting hole 14 all holds chamber 15 intercommunication with one, hold chamber 15 towards the slope of the fixed box 7 side wall of nozzle setting, the fixed box 7 of nozzle is located and is provided with drainage channel 16 on holding chamber 15 slope one side's the lateral wall, be provided with switching lid 17 on the drainage channel 16.
Contain remaining printing consumables in the nozzle 503 that dismantles, contain remaining printing consumables in the nozzle 503 and flow into under the effect of gravity and hold chamber 15 automatically, and drainage channel 16 realizes discharging the printing consumables that hold chamber 15.
The basic principle of the multifunctional large-scale inkjet 3D printer is as follows: the workbench 1 is a printing platform, and 3D products are printed and formed on the upper surface of the workbench 1 in a 3D mode; a three-dimensional printing model is led into a computer connected with a 3D printer in advance, a printing file is generated through a controller, the controller controls a three-dimensional movement mechanism to drive a spray head assembly 2 to move freely in the directions of x, y and z axes according to the printing file, and a nozzle 503 ejects printing consumables in an ink box 401 to realize layer-by-layer printing; in the process is printed at the successive layer to the 3D printer, when needing to change nozzle 503, three-dimensional motion mechanism drives shower nozzle subassembly 2 and removes to the fixed box 7 top of nozzle to dismounting device 6 is automatic to be changed nozzle 503, then three-dimensional motion mechanism drives shower nozzle subassembly 2 and continues downstream, until shower nozzle subassembly 2 and the fixed box 7 of nozzle in new nozzle 503 cooperation back, continue to carry out successive layer and print work, until printing the completion. The nozzle 503 in the spray head assembly 2 is detachably connected with the loading head 502, when the type of the nozzle 503 needs to be changed or the nozzle 503 needs to be maintained, the nozzle 503 in the spray head assembly 2 can be automatically detached and changed through the detaching device 6, the whole machine does not need to be maintained, and great convenience is brought to later maintenance work. Can match different nozzles 503 to different printing consumables simultaneously, and then realize making different products through 3D printing technique, solve because of 2 single types of shower nozzle subassemblies lead to the problem that the product limitation that 3D printer manufactured is serious.
As shown in fig. 6, the nozzle 503 is a hollow conical structure, the inner wall of the large diameter end of the nozzle 503 is provided with a mounting ring 10 in a protruding manner, the small diameter end of the nozzle 503 is provided with a nozzle 11, and the middle part of the nozzle 503 is provided with a detaching ring 9; the outer circumferential wall of the loading head 502 is provided with an annular groove 12 matching the mounting ring 10.
As a specific setting mode that the nozzle 503 is detachable, a circular channel 8 penetrates through the inside of the ink jet cavity 501, and the delivery pipe 403 penetrates through the cavity wall of the ink jet cavity 501 and is communicated with the circular channel 8; the top end of the loading head 502 is screwed to the bottom of the circular channel 8.
As shown in fig. 5, the detaching device 6 is located at the top of the inkjet cavity 501, the detaching device 6 includes a first linear motor 601 disposed on the horizontal top surface of the L-shaped connecting plate 3, an output end of the first linear motor 601 is vertically disposed and provided with a piston rod 602, the piston rod 602 is located in the circular channel 8, the piston rod 602 is movably and sealingly connected with the top of the circular channel 8 through a sealing ring or a sealing ring, a diameter of the piston rod 602 is smaller than an inner diameter of the loading head 502, and the first linear motor 601 drives the piston rod 602 to vertically move; the nozzle 503 is provided with a removal ring 9 inside, and the diameter of the removal ring 9 is smaller than the diameter of the piston rod 602.
As shown in fig. 1 to 7, the process of detaching the nozzle 503 by the detaching device 6 is: the first linear motor 601 drives the piston rod 602 to move downwards in the circular channel 8, after the piston rod 602 descends to a fixed height, the bottom end of the piston rod 602 passes through the circular channel 8 and the loading head 502 to contact with the upper surface of the detaching ring 9 in the nozzle 503, the piston rod 602 continues to move downwards under the action of the first linear motor 601 until the nozzle 503 and the loading head 502 are separated, the separated nozzles 503 are located in the nozzle fixing box 7, the nozzles 503 are collected in a centralized manner, and then the first linear motor 601 drives the piston rod 602 to move vertically upwards until the piston rod 602 retracts into the circular channel 8 and then stops.
The replacement process of the nozzle 503 is as follows: the three-dimensional movement mechanism drives the spray head assembly s2 to move to the position above the nozzle fixing box 7, meanwhile, the loading head 502 with the nozzle 503 is aligned to the second mounting hole 14 in the nozzle fixing box 7, the nozzle 503 is disassembled to the second mounting hole 14 through the disassembling device 6, then the spray head assembly 2 continues to move downwards until the loading head 502 is in interference fit with the new nozzle 503 in the first mounting hole 13, and automatic replacement of the nozzle 503 is achieved.
The number of the loading heads 502 is multiple, each loading head 502 is matched with one circular channel 8, each circular channel 8 is internally provided with one piston rod 602, the tops of the piston rods 602 can be provided with one synchronous plate, the output end of the first linear motor 601 is fixedly connected with the piston rods 602 through the synchronous plates, so that the synchronous vertical reciprocating motion of the piston rods 602 is realized, and the nozzles 503 on the loading heads 502 are automatically disassembled; the number of the ink cartridges 401 is the same as that of the loading heads 502, the ink cartridges 401 and the loading heads 502 are in a one-to-one matching relationship, and each ink cartridge 401 is matched with one delivery pump 402 and one delivery pipe 403. The setting of a plurality of nozzles 503 realizes that multinozzle 503 prints, has effectively improved work efficiency, realizes the integrated production of 3D printing product.
Preferably, it is a plurality of be provided with the printing consumables of multiple difference in the ink horn 401, like the difference of colour and specification, can realize the various function of beating, and different ink horn 401 uses with the nozzle 503 cooperation of difference, not only can realize that same printing object uses the raw and other materials of different thicknesses to accomplish, can also realize that multinozzle 503 prints, has effectively improved work efficiency, realizes 3D and prints the integrated production of product.
As shown in fig. 1 to 3, as a specific arrangement of the three-dimensional movement mechanism, the three-dimensional movement mechanism includes a z-axis movement mechanism, an x-axis movement mechanism, and a y-axis movement mechanism.
The z-axis movement mechanism comprises two supporting columns 18 arranged on two sides of the length direction of the workbench 1, a second linear motor 19 is arranged in each supporting column 18, the second linear motors 19 move synchronously, and a rectangular frame 20 is arranged at the output ends of the two second linear motors 19. The extension and contraction of the output ends of the two second linear motors 19 can realize the free movement of the rectangular frame 20 in the z-axis direction.
The y-axis movement mechanism comprises a movable cross beam 21 and a stepping motor 22 arranged in the middle of one side of the rectangular frame 20 in the width direction, a driving belt pulley 23 is arranged at the output end of the stepping motor 22, a driven belt pulley 24 is rotatably arranged on the other side of the rectangular frame 20 in the width direction, and the driving belt pulley 23 and the driven belt pulley 24 are in belt transmission.
The top parts of two sides of the rectangular frame 20 in the length direction are respectively provided with a slide rail 25, and the two slide rails 25 are arranged along the y-axis direction; the two ends of the movable beam 21 are respectively provided with a sliding chute 26 in sliding fit with the two sliding rails 25, the movable beam 21 is positioned below the belt, and the top of the movable beam 21 is provided with a synchronous belt pressing plate 27 for fixedly connecting the belt;
the stepping motor 22 realizes linear motion of the belt through the driving pulley 23 and the driven pulley 24, and the belt is fixedly connected with the moving beam 21 through the synchronous belt pressing plate 27, so that free motion of the moving beam 21 in the y-axis direction is realized.
The x-axis movement mechanism comprises a lead screw transmission mechanism arranged on the lower end face of the movable cross beam 21, and the lead screw transmission mechanism is used for driving the L-shaped connecting plate 3 to linearly slide in a reciprocating manner along the length direction of the movable cross beam 21.
The screw rod transmission mechanism comprises a transmission screw rod 28 and a guide rod 29 which are arranged along the length direction of the movable beam 21, movable sliding blocks 30 are arranged on the transmission screw rod 28 and the guide rod 29, the movable sliding blocks 30 are in threaded connection with the transmission screw rod, and the movable sliding blocks 30 are in sliding connection with the guide rod 29; the outer side wall of the L-shaped connecting plate 3 is fixedly connected with the side wall of the movable sliding block 30; two ends of the transmission screw 28 are respectively fixedly connected with the lower end surface of the movable beam 21 through a bearing seat 31; one end of the transmission screw 28 is connected with a driving motor 32 through a coupler.
The screw rod transmission mechanism drives the L-shaped connecting plate 3 to slide linearly in a reciprocating mode along the length direction of the movable cross beam 21, and therefore free movement of the L-shaped connecting plate 3 in the x-axis direction is achieved. And L type connecting plate 3 is with shower nozzle subassembly 2 fixed connection, to sum up, three-dimensional motion drives shower nozzle subassembly 2 free motion in x, y and z axle direction, and nozzle 503 spouts the printing consumptive material in the ink horn 401, realizes the successive layer and prints.
The delivery pump 402, the first linear motor 601, the second linear motor 19, the stepping motor 22 and the driving motor 32 are all electrically connected with the controller; the ink box 401 and the delivery pipe 403 are provided with a plurality of electric control valves electrically connected with a controller to control the inlet and outlet amount of ink, and a pressure sensor is arranged in the ink box 401 to sense the allowance of printing consumables.
Claims (9)
1. A multifunctional large-scale inkjet printing 3D printer is characterized by comprising a workbench, wherein a three-dimensional movement mechanism is arranged on the workbench, a spray head assembly is arranged on the three-dimensional movement mechanism, and the spray head assembly is fixedly connected with the three-dimensional movement mechanism through an L-shaped connecting plate;
the nozzle assembly comprises an ink supply device and an ink jet device, wherein the ink supply device comprises an ink box, a delivery pump and a delivery pipe which are positioned on the horizontal top surface of the L-shaped connecting plate;
the ink jet device comprises an ink jet cavity fixedly connected with the vertical inner side surface of the L-shaped connecting plate, at least one loading head which is communicated with the interior of the ink jet cavity and is of a hollow structure is arranged at the bottom of the ink jet cavity, and a nozzle is assembled on the loading head in an interference fit manner;
the consumable materials in the ink box are conveyed to the nozzle through the conveying pump and the conveying pipe sequentially through the ink jet cavity loading head;
the ink jet device is provided with a dismounting device for dismounting the nozzle from the loading head;
the workbench is provided with a nozzle fixing box, and a plurality of nozzles with different specifications are fixed in the nozzle fixing box.
2. The multifunctional large inkjet 3D printer according to claim 1, wherein a circular channel is arranged in the inkjet cavity in a penetrating manner, and the delivery pipe penetrates through the wall of the inkjet cavity and is communicated with the circular channel; the top end of the loading head is in threaded connection with the bottom of the circular channel;
the dismounting device is positioned at the top of the ink-jet cavity and comprises a first linear motor arranged on the horizontal top surface of the L-shaped connecting plate, the output end of the first linear motor is vertically arranged, a piston rod is arranged on the output end of the first linear motor, the piston rod is positioned in the circular channel, the piston rod is movably and hermetically connected with the top of the circular channel through a sealing ring or a sealing ring, the diameter of the piston rod is smaller than the inner diameter of the loading head, and the first linear motor drives the piston rod to vertically move; the inside of nozzle is provided with dismantles the ring, the diameter of dismantling the ring is less than the diameter of piston rod.
3. The multifunctional large-scale inkjet printing 3D printer according to claim 2, wherein the nozzle is in a hollow conical structure, a mounting ring is convexly arranged on the inner wall of the large-diameter end of the nozzle, a nozzle opening is arranged at the small-diameter end of the nozzle, and the dismounting ring is arranged in the middle of the nozzle; and an annular groove matched with the mounting ring is formed in the circumferential outer wall of the loading head.
4. The multifunctional large-scale inkjet 3D printer according to claim 1, wherein a plurality of first mounting holes for fixing nozzles of different specifications and a plurality of empty second mounting holes are arranged in the nozzle fixing box;
a plurality of first mounting hole and second mounting hole are a style of calligraphy range and alternate interval setting each other, and are a plurality of the bottom of first mounting hole and second mounting hole all holds the chamber intercommunication with one, hold the chamber and set up towards the fixed box of nozzle one side lateral wall slope, the fixed box of nozzle is located and is provided with the passageway of excreting on the lateral wall that holds chamber slope one side, it is provided with the switching lid to excrete on the passageway.
5. The multifunctional large inkjet 3D printer according to claim 4, wherein the three-dimensional motion mechanism comprises a z-axis motion mechanism, an x-axis motion mechanism and a y-axis motion mechanism;
the z-axis movement mechanism comprises two support columns arranged on two sides of the length direction of the workbench, a second linear motor is arranged in each support column, the two second linear motors synchronously move, and a rectangular frame is arranged at the output ends of the two second linear motors;
the y-axis movement mechanism comprises a movable cross beam and a stepping motor arranged in the middle of one side of the rectangular frame in the width direction, a driving belt pulley is arranged at the output end of the stepping motor, a driven belt pulley is rotatably arranged on the other side of the rectangular frame in the width direction, and the driving belt pulley and the driven belt pulley are in transmission through a belt;
the top parts of two sides of the rectangular frame in the length direction are respectively provided with a sliding rail, and the two sliding rails are arranged along the y-axis direction; the two ends of the movable cross beam are respectively provided with a sliding chute in sliding fit with the two sliding rails, the movable cross beam is positioned below the belt, and the top of the movable cross beam is provided with a synchronous belt pressing plate for fixedly connecting the belt;
the x-axis movement mechanism comprises a lead screw transmission mechanism arranged on the lower end face of the movable cross beam, and the lead screw transmission mechanism is used for driving the L-shaped connecting plate to linearly slide in a reciprocating manner along the length direction of the movable cross beam.
6. The multifunctional large-scale inkjet printing 3D printer according to claim 5, wherein the screw rod transmission mechanism comprises a transmission screw rod and a guide rod which are arranged along the length direction of the movable beam, movable sliding blocks are arranged on the transmission screw rod and the guide rod, the movable sliding blocks are in threaded connection with the transmission screw rod, and the movable sliding blocks are in sliding connection with the guide rod; the outer side wall of the L-shaped connecting plate is fixedly connected with the side wall of the movable sliding block; two ends of the transmission screw rod are respectively and fixedly connected with the lower end face of the movable cross beam through bearing seats; one side end of the transmission screw rod is connected with a driving motor through a coupler.
7. The multifunctional large-scale inkjet 3D printer according to claim 6, wherein the number of the loading heads is multiple, and each loading head is matched with a circular channel; the number of the ink boxes is the same as that of the loading heads, the ink boxes and the loading heads are in one-to-one matching relationship, and each ink box is matched with one conveying pump and one conveying pipe.
8. The large-scale multi-functional inkjet 3D printer according to claim 7, wherein a plurality of different printing consumables are provided in a plurality of the cartridges.
9. The multifunctional large-scale inkjet printing 3D printer according to claim 8, further comprising a controller, wherein the delivery pump, the first linear motor, the second linear motor, the stepping motor and the driving motor are electrically connected with the controller;
the ink box and the delivery pipe are internally provided with a plurality of electric control valves electrically connected with the controller to control the input and output of ink, and the ink box is internally provided with a pressure sensor to sense the allowance of printing consumables.
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