CN110667115A

CN110667115A - Automatic finished product taking and feeding and circulating printing device of desktop-level 3D printer

Info

Publication number: CN110667115A
Application number: CN201911094743.9A
Authority: CN
Inventors: 洪亮; 李晓炜; 张庆永; 潘彬; 付成玉; 吴建兵; 赖泽骏; 饶宗健
Original assignee: Fujian University of Technology
Current assignee: Fujian University of Technology
Priority date: 2019-11-11
Filing date: 2019-11-11
Publication date: 2020-01-10

Abstract

The invention discloses an automatic finished product taking and feeding and circulating printing device of a desktop-level 3D printer, which comprises a rack, wherein the rack is of a box-shaped shell structure, a door for outputting a product is arranged on one side surface of the middle upper part of the rack, and a door plate capable of opening and closing the door is hinged to the upper side of the door; the 3D printing nozzle is arranged at the upper part of the rack and is used for printing a product; the nozzle driving mechanism is arranged on the upper part of the rack, is connected with the 3D printing nozzle and drives the 3D printing nozzle to move; the finished product conveying and circulating printing mechanism is arranged below the 3D printing nozzle, a platform for 3D printing is formed on the upper surface of the finished product conveying and circulating printing mechanism, and the finished product conveying and circulating printing mechanism is also used for assisting in outputting printed products; the lifting mechanism is connected with the finished product conveyor circulating printing mechanism and drives the finished product conveyor to lift; the door opening and fetching mechanism is used for pushing out a product printed on the finished product conveying and circulating printing mechanism from the rack, and the scheme has the functions of automatic fetching, automatic conveying, platform cleaning, circulating printing and the like of the finished product.

Description

Automatic finished product taking and feeding and circulating printing device of desktop-level 3D printer

Technical Field

The invention relates to the field of 3D printing devices, in particular to an automatic finished product taking and feeding and circulating printing device of a desktop-level 3D printer.

Background

At present, 3D printing technology is developed rapidly, related technologies are mature, 3D printing equipment on the market is various and has various advantages, but as far as desktop level 3D printing technology is concerned, too long printing time is still a common fault of the printing technology, a user needs to make necessary settings before 3D printing, automatic loading can be realized through software, but manual intervention is often needed in debugging of a printing environment and a printing hardware environment, and besides feeding and nozzle cleaning of a conventional 3D printer, a printing platform needs to be cleaned and masking paper is pasted before printing, so that next printing can be conveniently carried out; after printing, the 3D printing finished product needs to be manually taken out, and the masking paper needs to be cleaned. Because the process needs manual intervention, the efficiency of 3D printing is relatively low, because the process of 3D printing is very long, personnel can not wait by the printer, when printing and needing to print next time, the staff need to idle the machine until manual operation if not carrying out the above-mentioned operation in time, and a workshop has many machines, the staff can not carry out manual operation one by one in time, this has just caused idling of 3D printer, production efficiency has also been reduced.

In view of this, some devices capable of realizing automatic fetching devices of 3D printers or automatic rolling and pasting of textured paper are currently on the market, and these devices have the following problems:

(1) the mode of externally connecting additional equipment is adopted, the overall volume of the 3D printer is increased, and the additionally-installed equipment is complex in structure;

(2) the method is not necessarily suitable for some traditional desktop-level 3D printer types, and the modification cost is high;

(3) get the relative complicacy in the design of thing mechanism, and can reduce 3D printing environment's leakproofness to a certain extent to influence the effect that 3D printed. Except for some related inventions and creations in the prior art, most desktop-level 3D printers do not have automatic finished product taking and conveying and circular printing devices, do not have the functions of automatic finished product taking, automatic conveying, platform cleaning, circular printing and the like, and cannot realize unattended automatic production of 3D printing.

Meanwhile, some technical problems to be solved still exist in the prior art, which may specifically include:

(1) the 3D printing supporting base plate needs to be cleaned before printing each time, manual gluing is needed, and time and labor are wasted;

(2) after 3D printing is finished each time, the 3D printing finished product needs to be manually taken out and placed, so that printing discontinuity is caused, manual operation is needed, and efficiency is reduced;

(3) the problem that auxiliary materials such as the masking paper need to be pasted on a printing bottom plate and need to be replaced every time printing is conducted in the existing 3D printing technology is solved;

(4) some existing automatic fetching devices cannot realize automatic cleaning and gluing of the 3D printing supporting base plate;

(5) some current automatic load handling devices can not realize again guaranteeing the leakproofness of printing the space when automatic load handling and carrying, and non-seal space prints and can cause that the printing piece wets or printing temperature is invariable and influence the printing quality.

Disclosure of Invention

In view of the situations in the prior art, an object of the present invention is to provide an automatic finished product picking and feeding and circular printing apparatus for a desktop-level 3D printer, which has functions of automatic finished product picking, automatic conveying, platform cleaning, circular printing, and the like.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:

an automatic finished product taking and conveying and circulating printing device of a desktop-level 3D printer comprises a rack, a 3D printing nozzle and a nozzle driving mechanism, wherein the 3D printing nozzle is arranged at the upper part of the rack and used for printing a product; the spray head driving mechanism is arranged at the upper part of the rack, is connected with the 3D printing spray head and drives the 3D printing spray head to move;

the rack is of a box-shaped shell structure, a door for outputting products is arranged on one side surface of the middle upper part of the rack, and a door plate capable of opening and closing the door is hinged to the upper side of the door;

it still includes:

the finished product conveying and circulating printing mechanism is arranged below the 3D printing nozzle, a platform for 3D printing is formed on the upper surface of the finished product conveying and circulating printing mechanism, and the finished product conveying and circulating printing mechanism is also used for assisting in outputting printed products;

the lifting mechanism is connected with the finished product conveyor circulating printing mechanism and drives the finished product conveyor to lift;

the door opening and fetching mechanism stretches across the 3D printing nozzle and between the finished product conveying and circulating printing mechanism, is connected with the door plate, can horizontally reciprocate from one side of the frame far away from the door to one side of the frame where the door is arranged, and is used for pushing out the finished product after printing on the finished product conveying and circulating printing mechanism from the frame.

Further, the finished product conveying and circulating printing mechanism comprises:

the supporting bottom plate is in a rectangular structure, is connected with the lifting mechanism and is driven to lift by the lifting mechanism; a shaft A is rotatably arranged at one side close to the door, a shaft B is rotatably arranged at one side far away from the door, and two ends of the shaft A and the shaft B horizontally extend out of the supporting bottom plate;

the gear A is fixedly connected to the middle part of the shaft A;

the pair of driving rollers are fixedly connected to the shaft A and are respectively positioned on two sides of the gear A;

the driven roller A is fixedly connected to the shaft B;

the motor A is fixedly arranged on one side of the gear A close to the direction of the shaft B;

the gear B is fixed on a rotating shaft of the motor A and is meshed with the gear A, and the gear B is driven by the motor A to drive the gear A to drive the shaft A to guide the pair of driving rollers to rotate;

the conveyer belt, bypass a pair of initiative cylinder and driven cylinder A respectively and form annular enclosed construction, drive by the initiative cylinder and remove, the upper surface of conveyer belt is established to be used for 3D printed platform, and this 3D print platform is higher than the lower limb of door.

Preferably, it further comprises:

the heating plate is of a rectangular structure, is arranged above the supporting bottom plate and is fixedly connected with the supporting bottom plate through a support A and a support B, one side of the heating plate, which is close to the door, is rotatably provided with a shaft C, and one side of the heating plate, which is far away from the door, is rotatably provided with a shaft D;

the driven roller B is fixedly connected to the shaft C;

the driven roller C is fixedly connected to the shaft D;

the conveyer belt still walk around driven cylinder B, the up end and the driven cylinder C of hot plate to form annular enclosed construction, the upper surface that the conveyer belt is located the hot plate top is established to be used for the platform that 3D printed.

Preferably, the middle part of the lower end face of the supporting bottom plate is further provided with an adjusting support, the lower end of the adjusting support is further rotatably connected with an adjusting roller through a waist-shaped hole, and the lower side of the adjusting roller is used for abutting against the conveying belt and adjusting the tightness of the conveying belt.

Preferably, a gear C is further connected between the gear A and the gear B in a meshing manner, and the gear C is rotatably connected with the rack.

Preferably, a residue storage box with a concave shell structure is further arranged below the supporting base plate, cleaning brushes are arranged on the upper end face of the residue storage box at intervals, and brush bristles of the cleaning brushes are attached to the lower end face of the conveyor belt.

More preferably, the device still include and get the thing cutting plate, the perpendicular part of getting one side of thing cutting plate is fixed on the edge that the residue storage box is close to one side of door, and its opposite side is the cutting part and extends to conveyer belt and driven drum B complex position and tangent, gets the opposite side of thing cutting plate and still horizontally extends to conveyer belt width direction both sides.

Preferably, the device still include rubber coating mechanism, rubber coating mechanism include:

the glue smearing sprayer is arranged below one side, far away from the door, of the lower end face of the conveyor belt and is used for applying glue to the conveyor belt;

the glue storage tank is used for providing glue required by the glue smearing spray head;

the hose is used for communicating the glue storage tank with the glue smearing spray head;

and the hydraulic pump is arranged on the hose and provides power required by glue conveying.

Preferably, the lifting mechanism includes:

two pairs of motor frames A in a rectangular array are oppositely fixed on the positions of the frame below the finished product conveying and circulating printing mechanism in pairs;

the two pairs of motors B correspond to the motor frames A one by one and are respectively fixed on the motor frames A;

each pair of rack sleeves corresponds to one motor B and consists of two rack sleeves which are oppositely arranged up and down and are fixedly connected with the inner side surface of the rack close to the rack sleeves;

each lifting rack corresponds to one pair of rack sleeves and is vertically arranged in the rack sleeves in a penetrating mode, the upper ends of the two pairs of lifting racks are fixedly connected with the lower end face of the supporting bottom plate respectively, rack structures are arranged on one sides of the two pairs of lifting racks, a rotating shaft of a correspondingly arranged motor B extends to one side of the rack structures corresponding to the lifting racks and is connected with the lifting racks in a meshed mode through a gear D, and the motor B drives the lifting racks to drive the supporting bottom plate to lift.

Further, the mechanism of opening the door and getting thing include:

the pair of motor frames B are relatively and fixedly arranged on one side of the frame far away from the door;

the pair of motors C correspond to the motor frames B one by one and are fixedly connected, and rotating shafts of the motors C face the direction of a door arranged on the motor frames;

the pair of screw rods correspond to the motor C one by one and are connected with a rotating shaft of the motor C through a coupler, and one end of each screw rod, which is far away from the motor C, extends to one side of the frame, which is provided with a door;

the pair of bearing blocks A are provided with bearing structures, correspond to the pair of screw rods one by one and are connected to one end of the screw rods connected with the motor C, wherein the side surfaces of the bearing blocks A are fixed on the machine frame close to the bearing blocks A;

the pair of bearing blocks B are provided with bearing structures, correspond to the pair of screw rods one by one and are connected to the end parts of the screw rods extending to the door, wherein the side surfaces of the bearing blocks B are fixed on the machine frame close to the bearing blocks B;

the pair of nuts correspond to the pair of screw rods one by one and are in threaded connection with the screw rod parts of the screw rods between the bearing seats A and B;

the fetching push plate is of a U-shaped structure, two outer side surfaces of the U-shaped structure are respectively and fixedly connected with the pair of nuts, and the U-shaped inner concave surface faces the door;

the pair of telescopic rods respectively correspond to the two sides of the U-shaped fetching push plate, one end of each telescopic rod is connected with the lower part of the fetching push plate through a hinge A, and the other end of each telescopic rod is connected with the middle part of the door plate through a hinge B;

the pair of screws are driven to rotate by the pair of motors C, so that the guide nut drives the fetching push plate to move along the direction close to or far away from the door, and the telescopic rod pushes the door up or drives the door to be closed.

Furthermore, a storage box for receiving printed products is further arranged outside the rack and below the door.

By adopting the technical scheme, compared with the prior art, the invention has the beneficial effects that:

(1) the automatic picking and conveying device has the functions of automatically picking and conveying 3D printed finished products, can convey the printed finished products to corresponding positions through innovative mechanism design so as to facilitate next printing, and can realize 3D printing unattended continuous printing operation through reasonable program setting;

(2) the device has the cleaning function after automatic fetching, is cleaned for 2 times, and can also automatically spray auxiliary glue for next printing;

(3) the special conveyor belt made of the composite material can be matched with a bottom plate hot bed to serve as a basic platform for 3D printing, and can also be matched with a corresponding mechanism to circularly convey a printed finished product to a specified position;

(4) the device can ensure the sealing performance of a 3D printing environment, only after printing is finished, the cabin door can be automatically opened and a finished product is conveyed, and after conveying is finished, the cabin door can be automatically closed to ensure the next 3D printing quality;

(5) the scheme can be installed in most desktop-level 3D printers by directly modifying the existing 3D printer, and can also be used as an accessory to directly assemble a novel automatic 3D printer;

(6) can overcome current desktop level 3D printer and do not possess the finished product and get the thing automatically, carry automatically, the platform is clean and functional limitation such as circulation is printed, can also overcome the automatic load handling device of other 3D printers or roll up the device structure complicacy of pasting beautiful line paper automatically simultaneously to a certain extent, the volume is great, with high costs, the leakproofness is poor, drawback such as repacking difficulty.

Drawings

The invention is further described with reference to the accompanying drawings and the detailed description:

FIG. 1 is a schematic diagram of an embodiment of the apparatus according to the present invention;

FIG. 2 is a schematic front view of a product transport and cyclical printing mechanism in accordance with aspects of the present invention, wherein the lifting rack of the lifting mechanism is only partially shown;

FIG. 3 is a schematic side view of a product delivery and cyclical printing mechanism in accordance with aspects of the present invention;

FIG. 4 is a schematic top plan view of the completed product transport and circulation printing mechanism of the present invention, wherein the support base and its directly attached components are primarily shown with the conveyor belt and heating plate omitted;

FIG. 5 is a schematic top view of a heated platen of the product handling and cyclical printing mechanism of the present invention;

FIG. 6 is a schematic side view of the door opening and retrieving mechanism according to the present invention, wherein the view is from the side of the door toward the door opening and retrieving mechanism;

FIG. 7 is a schematic front view of the door opening and fetching mechanism according to the embodiment of the present invention, which mainly shows the matching structure of the components of the driving screw rod;

FIG. 8 is a schematic top view of the door opening and access mechanism of the present invention;

FIG. 9 is a schematic diagram of a state of the apparatus according to the embodiment of the present invention, in which 3D printing is completed and finished product picking and delivering operations are started;

FIG. 10 is a second schematic view of the apparatus according to the second embodiment of the present invention, wherein the conveyor and the door opening and picking mechanism are linked to each other to convey the product and pick and separate the product at the door opening;

fig. 11 is a third schematic view of the state of the device according to the third embodiment of the present invention, in which the conveyor belt is linked with the door opening and fetching mechanism to transport the finished product to the storage box.

Detailed Description

As shown in fig. 1 to 11, the apparatus of the present invention includes a frame 2, a 3D printing head 101 and a head driving mechanism 1, wherein the 3D printing head 101 is disposed at an upper portion of the frame 2 and is used for printing a product; the spray head driving mechanism 1 is arranged at the upper part of the rack 2, is connected with the 3D printing spray head 101 and drives the 3D printing spray head 101 to move; because the main core of the scheme of the present invention is other matching mechanisms that assist the 3D printing nozzle 101 in performing product printing, and the 3D printing nozzle 101 and the nozzle driving mechanism 1 can both be implemented by existing mechanisms, detailed descriptions of specific structures of the 3D printing nozzle 101 and the nozzle driving mechanism 1 are omitted, where the nozzle driving mechanism 1 may be a device that drives the 3D printing nozzle 101 to perform horizontal movement or a frame mechanism that also has a lifting function or dimensional movement, and the driving mechanism is already a conventional widely-used scheme, and thus detailed descriptions are omitted.

The main core of the scheme of the invention is as follows:

the machine frame 2 is of a box-shaped shell structure, a door for outputting products is arranged on one side surface of the middle upper part of the machine frame 2, and the upper side of the door can be hinged with a door plate 22 capable of opening and closing the door through a hinge C or other hinged connecting pieces;

it still includes:

the finished product conveying and circulating printing mechanism 7 is arranged below the 3D printing nozzle 101, a platform for 3D printing is formed on the upper surface of the finished product conveying and circulating printing mechanism, and the finished product conveying and circulating printing mechanism is also used for assisting in outputting printed products;

the lifting mechanism is connected with the finished product conveyor cyclic printing mechanism 7 and drives the finished product conveyor cyclic printing mechanism to lift;

the door opening and fetching mechanism is arranged between the 3D printing nozzle 101 and the finished product conveying and circulating printing mechanism 7 in a crossing mode, is connected with the door plate 22, can horizontally reciprocate from one side, far away from the door, of the rack 2 to one side, provided with the door, of the rack 2, and is used for pushing out the finished product printed on the finished product conveying and circulating printing mechanism 7 from the rack 2.

As a preferred implementation structure, the product conveying and circulating printing mechanism 7 includes:

the supporting bottom plate 706 is in a rectangular structure, is connected with the lifting mechanism, and is driven by the lifting mechanism to lift the supporting bottom plate 706; a shaft A716 is rotatably arranged at one side close to the door, a shaft B705 is rotatably arranged at one side far away from the door, and two ends of the shaft A716 and the shaft B705 horizontally extend out of the supporting bottom plate 706;

gear A717 fixedly connected to the middle of shaft A716;

a pair of driving rollers 715 fixedly connected to the shaft a 716 and respectively located at two sides of the gear a 717;

a driven drum a 704 fixedly connected to a shaft B705;

a motor A711 fixed to one side of the gear A717 in the direction approaching the axis B705;

the gear B710 is fixed on the rotating shaft of the motor A711 and is meshed with the gear A717, the gear B710 is driven by the motor A711, and the gear A717 drives the shaft A716 to guide the pair of driving rollers 715 to rotate;

and the conveyor belt 6 bypasses the pair of driving rollers 715 and the driven roller a 704 respectively and forms an annular closed structure, the conveyor belt is driven by the driving rollers 715 to move, the upper surface of the conveyor belt 6 is set as a platform for 3D printing, and the 3D printing platform is higher than the lower edge of the door.

In a preferred embodiment, a gear C712 is further engaged between the gear a 717 and the gear B710, and the gear C712 is rotatably connected to the supporting base 706.

As a preferred addition to the product conveying and recycling printing mechanism 7, it further comprises:

the heating plate 701 is of a rectangular structure, is arranged above the supporting bottom plate 706 and is fixedly connected with the supporting bottom plate 706 through a support A721 and a support B724, one side, close to the door, of the heating plate 701 is rotatably provided with a shaft C720, and one side, far away from the door, of the heating plate 701 is rotatably provided with a shaft D703;

a driven roller B719 fixedly connected to the shaft C720;

a driven drum C702 fixedly connected to the shaft D703;

based on this, the conveyor belt 6 also needs to bypass the driven roller B719, the upper end surface of the heating plate 701, and the driven roller C702, and form an annular closed structure, and the upper surface of the conveyor belt 6 above the heating plate 701 is set as a platform for 3D printing, that is, the 3D printing head 101 prints a product directly on the upper surface of the conveyor belt 6 above the heating plate 701.

In order to keep the conveyor belt 6 with good tightness, as one of preferable solutions, an adjusting bracket 723 is further disposed in the middle of the lower end surface of the supporting base plate 706, an adjusting roller 722 is further rotatably connected to the lower end of the adjusting bracket 723 through a waist-shaped hole, and the lower side of the adjusting roller 722 is used for abutting against the conveyor belt 6 and adjusting the tightness of the conveyor belt 6, that is, by controlling the rotation fixing connection position of the adjusting roller 722 on the waist-shaped hole of the adjusting bracket 723, the abutting force of the adjusting roller 722 on the conveyor belt 6 is realized, and the tightness adjustment of the conveyor belt 6 is achieved.

In addition, conveyer belt 6 sees the back with 3D printing product, and it has the residue of 3D printing material on the surface of original product of printing, in order to clear away it to use as printing platform next time, preferably, the below of supporting baseplate 706 still be equipped with the residue storage box 708 that is concave shell structure, the interval is equipped with cleaning

brush

709, 714 on the up end of residue storage box 708, the brush hair end of cleaning

brush

709, 714 pastes with the lower terminal surface of conveyer belt 6, for better brushing the 3D printing material residue on conveyer belt 6 surface, can adopt thin brush and coarse brush to carry out the mode of using jointly, and the cleaning brush 714 that is close to the door sets up to clean coarse brush, and the cleaning brush 709 that is close to adjusting roller 722 sets up to clean thin brush.

In order to facilitate the output of the 3D printed product from the conveyor 6, preferably, the apparatus further includes an fetching and cutting plate 19, a vertical portion of one side of the fetching and cutting plate 19 is fixed on an edge of one side of the residue storage box 708 close to the door, the other side of the fetching and cutting plate is an edge portion and extends to a position where the conveyor 6 is matched with the driven roller B719 and is tangent to the edge portion, and the other side of the fetching and cutting plate 19 also extends horizontally to two sides of the width direction of the conveyor 6.

In order to enable a 3D printing platform to better provide printing conditions during 3D printing, preferably, the device according to the present invention further includes a glue coating mechanism, where the glue coating mechanism includes:

a glue smearing nozzle 707, which is arranged below one side of the lower end face of the conveyor belt 6 far away from the door and is used for applying glue to the conveyor belt 6, specifically to be used as the end face part of the conveyor belt 6 of the 3D printing platform;

a glue storage tank 11 for providing glue required by the glue application nozzle 707;

the hose 9 is used for communicating the glue storage tank with the glue smearing spray head;

and the hydraulic pump 10 is arranged on the hose 9 and provides power required by glue delivery.

In order to enable the 3D printing platform formed by the finished product conveying and circulating printing mechanism 7 to be lifted to cooperate with the 3D printing nozzle 101 to perform good product printing during printing, preferably, the lifting mechanism includes:

two pairs of motor frames A16 which are in rectangular arrays are oppositely fixed on the positions of the frame 2 below the finished product conveying and circulating printing mechanism 7 in pairs;

the two pairs of motors B15 correspond to the motor frames A16 one by one and are respectively fixed on the motor frames A16;

each pair of rack sleeves corresponds to one motor B15, and each pair of

rack sleeves

13 and 17 consists of two rack sleeves (namely the rack sleeve 13 and the rack sleeve 17) which are oppositely arranged up and down and are fixedly connected with the inner side surface of the rack 2 close to the rack sleeves;

two pairs of lifting

racks

8 and 12, each lifting rack is arranged corresponding to one pair of

rack sleeves

13 and 17 and vertically penetrates through the

rack sleeves

13 and 17, the upper ends of the two pairs of lifting

racks

8 and 12 are fixedly connected with the lower end face of the supporting bottom plate 706 respectively, one side of each of the two pairs of lifting

racks

8 and 12 is provided with a rack structure, a rotating shaft of a correspondingly arranged motor B15 extends to one side of the rack structure corresponding to the lifting racks 8 and 12 and is meshed with the lifting

racks

8 and 12 through a gear D14, and the motor B15 drives the lifting racks 8 and 12 to drive the supporting bottom plate 706 to lift.

Simultaneously, in order to be convenient for print the product propelling movement of accomplishing with 3D, further, open the door and get the thing mechanism and include:

the pair of motor frames B401 are oppositely and fixedly arranged on one side of the frame 2 far away from the door;

the pair of motors C402 are in one-to-one correspondence with the motor frames B401 and are fixedly connected, and rotating shafts of the motors C402 face the direction of a door arranged on the frame 2;

a pair of screw rods 406, which are in one-to-one correspondence with the motors C402 and are connected with the rotating shaft of the motor C402 through a coupler 403, wherein one end of each screw rod 406, which is far away from the motor C402, extends to one side of the rack 2, which is provided with a door;

a pair of bearing blocks A404 which have bearing structures, are in one-to-one correspondence with the pair of screw rods 406 and are connected to one end of the screw rods 406 connected with the motor C402, wherein the side surface of the bearing block A404 is fixed on the frame 2 close to the bearing block A;

a pair of bearing seats B407 which have bearing structures, correspond to the pair of screw rods 406 one by one and are connected to the end parts of the screw rods 406 extending to the door, wherein the side surfaces of the bearing seats B407 are fixed on the frame 2 close to the bearing seats B407;

a pair of nuts 405, corresponding to the pair of lead screws 406 one by one and screwed on the screw portions of the lead screws 406 between the bearing seats a 404 and B407;

the fetching push plate 3 is of a U-shaped structure, two outer side surfaces of the U-shaped structure are respectively and fixedly connected with the pair of nuts 405, and the U-shaped concave surface faces the door;

a pair of telescopic rods 21 respectively corresponding to the two sides of the U-shaped fetching push plate 3, wherein one end of each telescopic rod 21 is connected with the lower part of the fetching push plate 3 through a hinge A5, and the other end of each telescopic rod 21 is connected with the middle part of the door plate 22 through a hinge B20;

the pair of screws 406 are driven by the pair of motors C402 to rotate, so that the lead nut 405 drives the fetching push plate 3 to move in a direction approaching to or away from the door, so that the telescopic rod 21 pushes up or drives the door to be closed, and the telescopic rod 21 may be in a form of an air strut or other similar devices.

In order to conveniently store the pushed 3D printed products, the effect of no manual on-site monitoring is achieved, and further, a storage box 18 for receiving the printed products is further arranged below the door outside the rack 2.

By adopting the technical scheme, the operation flow of the invention is briefly as follows:

the motor A711 drives the conveyor belt 6 to rotate, and meanwhile, a glue smearing nozzle 707 of the glue smearing mechanism applies glue on the conveyor belt 6 until the part, coated with glue, of the conveyor belt moves above the heating plate 701 to form a platform for 3D printing;

the lifting mechanism drives the supporting bottom plate 706 to ascend until a platform for 3D printing is formed, the distance between the platform and the 3D printing nozzle 101 reaches a preset initial position, and 3D printing work is started, wherein each time the 3D printing is finished by one layer of structure, the lifting mechanism drives the supporting bottom plate 706 to descend step by step, the lifting mechanism descends the supporting bottom plate 706 to the discharging height set by the platform for 3D printing and the door until all layers are printed, and then the conveyor belt 6 continues to move to drive the printed product to move in the direction close to the door;

meanwhile, the rotating shaft of the motor C402 rotates to drive the screw rod 406 to rotate, so that the screw rod guide nut 405 drives the fetching push plate 3 to move along the direction close to the door, and when the fetching push plate 3 moves along the direction close to the door, the hinge A5 at the lower part of the fetching push plate can link the telescopic rod 21 to gradually turn over and push up the door panel 22, finally the door panel 22 is opened, and the 3D printed product is pushed out of the door by the cooperation of the conveyor belt 6 and the fetching cutting plate 19 to finish output; then the rotating shaft of the motor C402 rotates reversely again, so that the nut 405 drives the fetching push plate 3 to reset, and meanwhile, the door plate 22 is closed to ensure the space sealing property in the rack when 3D printing is performed next time;

in the reset process of the fetching push plate 3, the conveyor belt 6 still keeps moving, the end face which is originally used as 3D printing is driven to move to the position above the residue storage box 708, and is cleaned by the cleaning brushes 709 and 714, so that the residue remained on the conveyor belt is swept into the residue storage box 708, meanwhile, the end face which is used as the next 3D printing platform is sprayed by the glue coating nozzle 707 of the glue coating mechanism, is applied with glue, and moves to the position above the heating plate 701 to form a platform for 3D printing; in preparation for the start of the next 3D print job.

In summary, the scheme of the invention has the following characteristics:

(1) the automatic picking and conveying device has the functions of automatically picking and conveying 3D printed finished products, and can convey the printed finished products to corresponding positions through the innovative design of a combined mechanism so as to facilitate the uninterrupted printing of the next product;

(2) the device has a self-cleaning function after automatic fetching, is cleaned for 2 times, and can also automatically spray auxiliary glue for next printing;

(4) the device can ensure the sealing performance of a 3D printing environment, only after printing is finished, the door plate can be automatically opened and a finished product is conveyed, and after the conveying is finished, the door can be automatically closed to ensure the next 3D printing quality;

(5) adopt thrust and shearing force matched with mode for the separation of product base basis and print platform is faster, also is difficult to damage and prints the finished product.

While only the preferred embodiments of the invention have been disclosed, it is to be understood that variations and modifications of the disclosed embodiments may be possible, and that alternative and equivalent various components of the embodiments may be known to those skilled in the art, and it will be apparent to those skilled in the art that the invention may be embodied in other forms, structures, arrangements, proportions, and with the use of specific elements thereof, without departing from the spirit or essential characteristics thereof.

Claims

1. An automatic finished product taking and conveying and circulating printing device of a desktop-level 3D printer comprises a rack, a 3D printing nozzle and a nozzle driving mechanism, wherein the 3D printing nozzle is arranged at the upper part of the rack and used for printing a product; the spray head driving mechanism is arranged at the upper part of the rack, is connected with the 3D printing spray head and drives the 3D printing spray head to move; the method is characterized in that:

it still includes:

2. The automatic finished product taking and circulating printing device of the desktop-level 3D printer as claimed in claim 1, wherein: the finished product is carried and circulation printing mechanism include:

the gear A is fixedly connected to the middle part of the shaft A;

the driven roller A is fixedly connected to the shaft B;

3. The automatic finished product taking and circulating printing device of the desktop-level 3D printer as claimed in claim 2, wherein: it still includes:

the driven roller B is fixedly connected to the shaft C;

the driven roller C is fixedly connected to the shaft D;

4. The automatic finished product taking and circulating printing device of the desktop-level 3D printer as claimed in claim 2, wherein: the lower terminal surface middle part of supporting baseplate still is equipped with the adjustment support, the lower extreme of adjustment support still is connected with adjusting drum through waist shape hole rotation, and adjusting drum's downside is used for offsetting with the conveyer belt and is used for adjusting the elasticity of conveyer belt.

5. The automatic finished product taking and circulating printing device of the desktop-level 3D printer as claimed in claim 2, wherein: and a gear C is also connected between the gear A and the gear B in a meshing manner and is rotationally connected with the supporting bottom plate.

6. The automatic finished product taking and circulating printing device of the desktop-level 3D printer as claimed in claim 2, wherein: the lower part of the supporting base plate is also provided with a residue storage box with a concave shell structure, cleaning brushes are arranged on the upper end face of the residue storage box at intervals, and the brush ends of the cleaning brushes are attached to the lower end face of the conveyor belt.

7. The automatic finished product taking and circulating printing device of the desktop-level 3D printer as claimed in claim 6, wherein: the device still including getting the thing cutting plate, the perpendicular part of getting one side of thing cutting plate is fixed on the edge that the residue storage box is close to one side of door, its opposite side is the cutting part and extends to conveyer belt and driven cylinder B complex position and tangent, gets the opposite side of thing cutting plate and still the level extend to conveyer belt width direction both sides.

8. The automatic finished product taking and circulating printing device of the desktop-level 3D printer as claimed in claim 2, wherein: the device still include rubber coating mechanism, rubber coating mechanism include:

9. The automatic finished product taking and circulating printing device of the desktop-level 3D printer as claimed in claim 2, wherein: the lifting mechanism comprises:

10. The automatic finished product taking and circulating printing device of the desktop-level 3D printer as claimed in claim 1, wherein: the mechanism of opening the door and getting the thing include: