CN108724729B

CN108724729B - Multi-station 3D printing method

Info

Publication number: CN108724729B
Application number: CN201810493624.XA
Authority: CN
Inventors: 张梦如; 毛旭东
Original assignee: Nanjing Ruiyi Electronic Technology Co Ltd
Current assignee: Nanjing Ruiyi Electronic Technology Co Ltd
Priority date: 2018-05-22
Filing date: 2018-05-22
Publication date: 2021-06-22
Anticipated expiration: 2038-05-22
Also published as: CN108724729A

Abstract

The invention relates to the field of printers, in particular to a multi-station 3D printing method, wherein a multi-station 3D printer adopted by the method comprises a machine body, a dustproof mechanism, a charging mechanism, a stirring and grinding mechanism, a driving mechanism, a printing device, supporting legs, a drainage plate, a control mechanism, a material storage mechanism and springs; the top installation storage bucket of organism, the inside of storage bucket is rotated and is connected stirring grinding mechanism, the material stirring that the material piles up the piece when being convenient for will not use the machine for a long time is ground, the control mechanism of the lateral wall of organism and the inside of set casing are connected with spring coupling's inner bag, the material of the inside when the inner bag reduces, weight reduction, the spring rises the inner bag, the inner bag is contradicted the dog and is opened the baffle, automatic feeding has been realized, the lateral wall block of organism has the mount of air outlet, the lateral wall of mount is fixed and the deep bead, be connected the foam-rubber cushion between deep bead and the mount, it has realized ventilation and heat dissipation to be the triangle-shaped structure between deep bead and.

Description

Multi-station 3D printing method

Technical Field

The invention relates to the field of printers, in particular to a multi-station 3D printing method.

Background

3D printing is one of the rapid prototyping technologies, which is a technology for constructing an object by using an adhesive material such as powdered metal or plastic and the like in a layer-by-layer printing manner on the basis of a digital model file.

However, in the conventional multi-station 3D printing device, when the printer is not operated for a long time or is used less, the materials in the storage box are accumulated into blocks for a long time, and the materials are not ground and stirred, so that the materials are condensed and cannot be used, the materials are wasted, the printing effect is influenced, and the conventional cover is sealed, cannot ventilate and prevent dust, and the service life of the printer is shortened, so that the invention provides a multi-station 3D printing method, which has the following characteristics:

(1) according to the multistation 3D printing method, the charging basket is mounted at the top of the machine body, the stirring and grinding mechanism is rotatably connected inside the charging basket, so that materials stacked into blocks when the machine is not used for a long time can be stirred and ground conveniently, and the printing effect is better.

(2) According to the multi-station 3D printing method, the control mechanism on the side wall of the machine body is connected with the inner container which is connected with the spring and arranged inside the fixed shell, when the materials in the inner container are reduced and the weight is reduced, the spring lifts the inner container, the inner container pushes the stop block to open the baffle, and automatic feeding is achieved.

(3) According to the multistation 3D printing method, the side wall of the machine body is clamped with the fixing frame with the air outlet, the side wall of the fixing frame is fixed with the wind shield, the spongy cushion is connected between the wind shield and the fixing frame, the wind shield and the spongy cushion are in a triangular structure to achieve ventilation and heat dissipation.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a multi-station 3D printing method, a charging basket is installed at the top of a machine body of a multi-station 3D printer, the interior of the charging basket is rotatably connected with a stirring and grinding mechanism, so that materials piled up into blocks when the machine is not used for a long time can be stirred and ground, the printing effect is better, a control mechanism of the side wall of the machine body is connected with an inner container connected with a spring, when the materials in the inner container are reduced, the weight is reduced, the inner container is lifted by the spring, the baffle is opened by the inner container in a manner of being abutted against by the baffle, automatic feeding is realized, the side wall of the machine body is clamped with a fixing frame with an air outlet, the side wall of the fixing frame is fixed with a wind shield, a sponge pad is connected between the wind shield and the fixing frame, and ventilation and.

The technical scheme adopted by the invention for solving the technical problems is as follows: a method of multi-station 3D printing, the method comprising the steps of:

s1, inputting the three-dimensional model into a computer;

s2, connecting the computer in the S1 with the multi-station 3D printer in a data connection mode, enabling the computer to form numerical control programming on the three-dimensional model, and conveying the numerical control programming to the multi-station 3D printer;

the multi-station 3D printer in the S3 and S2 performs three-dimensional printing;

s4, taking the three-dimensional model printed in the S3 out of the multi-station 3D printer;

s5, putting the three-dimensional model formed in the S4 into a cleaning solution for cleaning;

the multi-station 3D printer adopted in the method comprises a machine body, a dustproof mechanism, a charging mechanism, a stirring and grinding mechanism, a driving mechanism, a printing device, support legs, a drainage plate, a control mechanism, a material storage mechanism and springs; the bottom four corners of the machine body is fixedly connected with the support legs which are of a cylindrical structure and used for supporting the whole structure, the internal installation of the machine body is used for printing an object or a model, the side face of the machine body is provided with the dustproof mechanism which is of a cuboid structure and used for preventing dust from entering the interior of the machine body and ventilating and cooling the interior of the machine body, the top of the machine body is provided with the charging mechanism which is of a hollow cylindrical shape and used for storing printing materials, the charging mechanism is parallel to the side wall of the machine body, the stirring and grinding mechanism which is used for grinding the materials and preventing the materials from being piled up into blocks for a long time and is in triangular distribution is rotatably connected in the interior of the machine body, the top of the machine body is provided with the driving mechanism of the stirring and grinding mechanism, and the side wall of the charging mechanism is provided with the control mechanism for controlling, the fixed surface of organism is connected the cavity cuboid structure that is used for automatic unloading storage mechanism, storage mechanism with control mechanism contradicts, storage mechanism's internally mounted is used for automatic feeding the spring, control mechanism with be equipped with between the storage mechanism and be used for the drainage to grind the material after the drainage board.

Specifically, printing device includes shower nozzle, shaping layer board, fixed plate and connects grey fill, the internally mounted of organism is used for realizing printing object or grinding apparatus the shower nozzle, the inside fixedly connected with of organism with the bottom of organism is parallel the fixed plate, the surperficial sliding connection of fixed plate is used for placing the object that needs to print or the grinding apparatus the shaping layer board, the shaping layer board is the shaping layer board that has the hole, the fixed plate is the fixed plate that has the hole, the below of fixed plate be equipped with organism fixed connection cross-section is trapezium structure connect grey fill, inside cavity connect the area of top of grey fill to be greater than the bottom surface, realized printing the article that need print.

Specifically, dustproof mechanism includes air outlet, a plurality of deep bead, foam-rubber cushion and mount, the side block of organism is connected the mount, the lateral wall fixed connection of mount the deep bead, the deep bead with contained angle between the mount is 45 degrees, the mount with be equipped with between the organism the foam-rubber cushion, the foam-rubber cushion the deep bead be the triangle-shaped structure between the mount, mount surface equidistance has been seted up and has been used for doing the radiating of the internals of organism the air outlet, the maximum length of mount equals the minimum internal diameter of organism has realized right the inside ventilation and the heat dissipation of organism.

Specifically, charging mechanism includes apron, feed inlet and storage bucket, the top fixed connection of organism is that being used for of hollow cylinder structure stirs the material storage bucket, the top of storage bucket is seted up the feed inlet, the top of storage bucket is rotated and is connected and erect the cross-section and be the arc structure the apron, the apron with the feed inlet block is connected, has realized to the inside of storage bucket is reinforced.

Specifically, the stirring and grinding mechanism comprises a first latch, a first roller, a second latch, three fixed columns, a fixed frame, a second roller, a third roller and a fourth roller, the second latch is arranged on the inner side wall of the charging basket at equal intervals, the second roller is rotatably connected with the inside of the charging basket, the third roller is rotatably connected with the inside of the charging basket, the fourth roller is rotatably connected with the inside of the charging basket, the second roller is meshed with the first roller, the third roller and the fourth roller, the diameters of the first roller, the third roller and the fourth roller are equal, the sum of the radius of the second roller and the radius of the first roller is equal to the diameter of the second roller, and the side walls of the first roller, the third roller and the fourth roller are provided with the first latch, first latch with the meshing of second latch, first roller the third roller the centre of a circle department fixed connection of fourth roller the fixed column, it is three the outside of fixed column is equipped with and is the equilateral triangle structure fixed frame realizes doing the inside material of storage bucket stirs and grinds, avoids the material to pile up the blocking, resources are saved.

Specifically, control mechanism includes first feed opening, baffle, dog and play hopper, the lateral wall of storage bucket with be cavity cuboid structure go out the hopper intercommunication, the lateral wall that goes out the hopper is equipped with first feed opening, the inside sliding connection that goes out the hopper the baffle, the lateral wall symmetry fixed connection of baffle the dog, the dog is located the lateral wall bottom border department of baffle has realized right the inside of storage bucket is sealed, the control unloading.

Specifically, storage mechanism includes second feed opening, third discharge gate, inner bag and set casing, the top fixed connection cavity rectangle structure of organism the set casing, the inside sliding connection of set casing the inner bag, the inner bag bottom with fixedly connected with spring between the inner wall of set casing bottom, the inner bag with the lateral wall of set casing is seted up the second feed opening, the top of set casing is seted up the third discharge gate, the inner bag with the lateral wall that goes out the hopper is located same straight line, the top of inner bag with the bottom of dog is contradicted, the lateral wall that goes out the hopper with the third discharge gate is perpendicular, the drainage plate rotate connect in the set casing, and the drainage plate runs through the inside of inner bag has realized right the collection of charging mechanism's material, automatic unloading reduces working time.

Specifically, actuating mechanism includes motor and mount, the top welding of organism the mount, the top installation of mount the motor, the motor with the second roller rotates to be connected, the motor is for the second roller provides power.

The invention has the beneficial effects that:

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of a multi-station 3D printing device adopted by the method;

FIG. 2 is a schematic view of the connection between the charging basket and the stirring and grinding mechanism shown in FIG. 1;

FIG. 3 is an enlarged view of the part A shown in FIG. 1;

FIG. 4 is a schematic view of the connection of the inner container, the fixing shell and the spring shown in FIG. 1;

fig. 5 is a schematic view of the dustproof mechanism shown in fig. 1.

In the figure: 1. a machine body, 2, a dustproof mechanism, 21, an air outlet, 22, a wind shield, 23, a sponge cushion, 24, a fixed frame, 3, a charging mechanism, 31, a cover plate, 32, a feed inlet, 33, a charging bucket, 4, a stirring and grinding mechanism, 41, a first latch, 42, a first roller, 43, a second latch, 44, a fixed column, 45, a fixed frame, 46, a second roller, 47, a third roller, 48, a fourth roller, 5, a driving mechanism and 51, motor, 52, fixing frame, 6, printing device, 61, spray head, 62, forming supporting plate, 63, fixing plate, 64, ash receiving hopper, 7, supporting leg, 8, flow guide plate, 9, control mechanism, 91, first discharging port, 92, baffle, 93, baffle, 94, discharging hopper, 9a, storage mechanism, 91a, second discharging port, 92a, third discharging port, 93a, inner container, 94a, fixing shell, 9b and spring.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1, 3 and 4, the multistation 3D printing method according to the invention comprises the following steps:

s1, inputting the three-dimensional model into a computer;

the multi-station 3D printer adopted in the method comprises a machine body 1, a dustproof mechanism 2, a charging mechanism 3, a stirring and grinding mechanism 4, a driving mechanism 5, a printing device 6, a support leg 7, a drainage plate 8, a control mechanism 9, a material storage mechanism 9a and a spring 9 b; the bottom four corners of the machine body 1 is fixedly connected with the supporting legs 7 which are of a cylindrical structure and used for supporting the whole structure, the internal installation of the machine body 1 is used for printing an object or a model, the side face of the machine body 1 is provided with the dustproof mechanism 2 which is of a cuboid structure and used for preventing dust from entering the interior of the machine body 1 and ventilating and cooling the interior of the machine body 1, the top of the machine body 1 is provided with the charging mechanism 3 which is of a hollow cylindrical shape and used for storing printing materials, the charging mechanism 3 is parallel to the side wall of the machine body 1, the internal rotation of the charging mechanism 3 is connected with the stirring and grinding mechanism 4 which is used for grinding materials and preventing the materials from being piled up into blocks for a long time and is of triangular distribution, the top of the machine body 1 is provided with the driving mechanism 5 for driving the stirring and grinding mechanism 4 in the charging mechanism 3, the lateral wall of charging mechanism 3 is equipped with the control unloading control mechanism 9, the fixed surface of organism 1 is connected the cavity cuboid structure that is used for automatic unloading storage mechanism 9a, storage mechanism 9a with control mechanism 9 is contradicted, storage mechanism 9 a's internally mounted is used for automatic feeding spring 9b, control mechanism 9 with be equipped with between the storage mechanism 9a and be used for the drainage to grind the material after the drainage board 8.

Specifically, as shown in fig. 1, in the multistation 3D printing method according to the present invention, the printing device 6 includes a nozzle 61, a forming support plate 62, a fixing plate 63 and a dust receiving hopper 64, the body 1 is internally provided with the nozzle 61 for realizing 3D printing of an object or a grinder, the fixing plate 63 parallel to the bottom of the machine body 1 is fixedly connected to the inside of the machine body 1, the surface of the fixing plate 63 is slidably connected with the forming supporting plate 62 for placing an object or a grinding tool to be printed, the molding support plate 62 is a molding support plate with holes, the fixing plate 63 is a fixing plate with holes, the ash receiving hopper 64 which is fixedly connected with the machine body 1 and has a trapezoidal cross section is arranged below the fixing plate 63, the top area of the ash receiving hopper 64 which is hollow inside is larger than the bottom area, and printing of articles to be printed is realized.

Specifically, as shown in fig. 1 and 5, in the multistation 3D printing method, the dustproof mechanism 2 includes an air outlet 21, a plurality of air baffles 22, a foam rubber cushion 23 and a fixing frame 24, the side surface of the machine body 1 is connected with the fixing frame 24 in a clamping manner, the side wall of the fixing frame 24 is fixedly connected with the air baffles 22, an included angle between each air baffle 22 and the corresponding fixing frame 24 is 45 degrees, the foam rubber cushion 23 is arranged between the corresponding fixing frame 24 and the machine body 1, the foam rubber cushion 23, the corresponding air baffles 22 and the corresponding fixing frame 24 are in a triangular structure, the air outlets 21 for dissipating heat of internal parts of the machine body 1 are equidistantly arranged on the surface of the corresponding fixing frame 24, the maximum length of the corresponding fixing frame 24 is equal to the minimum inner diameter of the machine body 1, and ventilation and heat dissipation of the interior of the machine.

Specifically, as shown in fig. 1, the loading mechanism 3 includes a cover plate 31, a feeding port 32 and a charging bucket 33, the top of the machine body 1 is fixedly connected with the charging bucket 33 which is in a hollow cylinder structure and used for stirring materials, the feeding port 32 is formed in the top of the charging bucket 33, the top of the charging bucket 32 is rotatably connected with the cover plate 31, the vertical section of which is in an arc structure, the cover plate 31 is connected with the feeding port 23 in a clamping manner, and feeding to the inside of the charging bucket 33 is realized.

Specifically, as shown in fig. 1 and fig. 2, in the multi-station 3D printing method according to the present invention, the stirring and grinding mechanism 4 includes a first latch 41, a first roller 42, a second latch 43, three fixing columns 44, a fixing frame 45, a second roller 46, a third roller 47, and a fourth roller 48, the second latch 43 is equidistantly disposed on an inner sidewall of the barrel 33, the second roller 46 is rotatably connected to an inside of the barrel 33, the second roller 42 is rotatably connected to an inside of the barrel 33, the third roller 47 is rotatably connected to an inside of the barrel 33, the fourth roller 48 is rotatably connected to an inside of the barrel 33, the second roller 46 is engaged with the first roller 42, the third roller 47, and the fourth roller 48, diameters of the first roller 42, the third roller 47, and the fourth roller 48 are equal, a sum of a radius of the second roller 46 and a radius of the first roller 42 is equal to a diameter of the second roller 46, first roller 42 third roller 47 fourth roller 48's lateral wall is equipped with first latch 41, first latch 41 with the meshing of second latch 43, first roller 42 third roller 47 the centre of a circle department fixed connection of fourth roller 48 fixed column 44, three the outside of fixed column 44 is equipped with and is the equilateral triangle structure fixed frame 45 realizes doing the inside material of storage bucket 33 stirs and grinds, avoids the material to pile up into the piece, resources are saved.

Specifically, as shown in fig. 3 and 4, in the multistation 3D printing method, the control mechanism 9 includes a first blanking port 91, a baffle 92, a stopper 93 and a discharge hopper 94, the side wall of the charging basket 33 is communicated with the discharge hopper 94 having a hollow rectangular structure, the first blanking port 91 is arranged on the side wall of the discharge hopper 94, the interior of the discharge hopper 94 is slidably connected with the baffle 92, the side wall of the baffle 92 is symmetrically and fixedly connected with the stopper 93, and the stopper 93 is located at the bottom edge of the side wall of the baffle 92, so that the interior of the charging basket 33 is sealed, and blanking is controlled.

Specifically, as shown in fig. 3 and 4, the storing mechanism 9a includes a second discharging opening 91a, a third discharging opening 92a, an inner container 93a and a fixed shell 94a, the top of the machine body 1 is fixedly connected to the fixed shell 94a with a hollow rectangular structure, the inner container 93a is slidably connected to the inside of the fixed shell 94a, a spring 9b is fixedly connected between the bottom of the inner container 93a and the inner wall of the bottom of the fixed shell 94a, the second discharging opening 91a is arranged on the side wall of the inner container 93a and the fixed shell 94a, the third discharging opening 92a is arranged on the top of the fixed shell 94a, the inner container 93a and the side wall of the discharging hopper 94 are located on the same straight line, the top of the inner container 93a and the bottom of the stopper 93 abut against each other, the side wall of the discharging hopper 94 is perpendicular to the third discharging opening 92a, the drainage plate 8 rotate connect in set casing 94a, and the drainage plate 8 runs through the inside of inner bag 93a, realized right the collection of the material of charging mechanism 3, automatic unloading reduces labour time.

Specifically, as shown in fig. 1, in the multi-station 3D printing method, the driving mechanism 5 includes a motor 51 and a fixing frame 52, the fixing frame 52 is welded to the top of the machine body 1, the motor 51 is installed on the top of the fixing frame 52, the motor 51 is rotatably connected to the second roller 46, and the motor 51 provides power for the second roller 46.

Firstly, the stirring and grinding mechanism 4 is arranged in the charging mechanism 3, the second roller 46 is rotatably connected with the motor 51, the stirring and grinding mechanism 4 is used for stirring and grinding the internal materials of the charging basket 33, the printing effect is improved, when the internal materials of the inner container 93a are reduced, the inner container 93a is lifted by the spring, the inner container 93a is used for pulling up the stop block 93 on the side wall of the baffle, the internal materials of the charging basket 33 fall into the inner container from the drainage plate 8 to supply materials for the printing mechanism, the dustproof mechanism 2 is arranged on the side surface of the machine body 1, ventilation and dust prevention are realized, and the service life of the printer is prolonged; the method specifically comprises the following steps:

(1) the second clamping teeth 43 are arranged on the inner side wall of the material barrel 33 at equal intervals, the second roller column 46 is connected to the inner portion of the material barrel 33 in a rotating mode, the second roller column 42 is connected to the inner portion of the material barrel 33 in a rotating mode, the third roller column 47 is connected to the inner portion of the material barrel 33 in a rotating mode, the fourth roller column 48 is connected to the inner portion of the material barrel 33 in a rotating mode, the second roller column 46 is meshed with the first roller column 42, the third roller column 47 and the fourth roller column 48, the first clamping teeth 41 are arranged on the side walls of the first roller column 42, the third roller column 47 and the fourth roller column 48, the first clamping teeth 41 are meshed with the second clamping teeth 43, the fixing columns 44 are fixedly connected to the circle centers of the first roller column 42, the third roller column 47 and the fourth roller column 48, fixing frames 45 in an equilateral triangle structure are arranged on the outer sides of the three fixing columns 44, stirring and grinding of materials in the material barrel 33 are achieved, the situation that.

(2) When the material of the inner container 93a is reduced, a fixed shell 94a of a hollow rectangular structure is fixedly connected to the top of the machine body 1, the inner container 93a is slidably connected to the inside of the fixed shell 94a, the inner container 93a and the fixed shell 94a are fixedly connected through a spring 9b, a second discharging opening 91a is formed in the side walls of the inner container 93a and the fixed shell 94a, a third discharging opening 92a is formed in the top of the fixed shell 94a, the side walls of the inner container 93a and the discharging hopper 94 are located on the same straight line, the top of the inner container 93a abuts against the bottom of the stopper 93, the side wall of the discharging hopper 94 is perpendicular to the third discharging opening 92a, and the drainage plate 8 rotates inside the fixed shell 94a penetrating through the inner container 93a, so that the collection of the material of the charging mechanism 3 is realized, the labor time is reduced in the automatic discharging process.

(3) Mount 24 is connected in organism 1's side block, mount 24's lateral wall fixed connection deep bead 22, contained angle between deep bead 22 and the mount 24 is 45 degrees, be equipped with foam-rubber cushion 23 between mount 24 and the organism 1, foam-rubber cushion 23, deep bead 22, be the triangle-shaped structure between the mount 24, mount 24 and the surperficial equidistance offer be used for ventilating for the radiating air outlet 21 of the internals of organism 1, mount 24's maximum length equals organism 1's minimum internal diameter, realized the inside ventilation and the heat dissipation to organism 1, increase printer life.

According to the multistation 3D printing method, the charging basket 33 is installed at the top of the machine body 4, the stirring and grinding mechanism 4 is rotatably connected inside the charging basket 33, so that materials piled up into blocks when the machine is not used for a long time can be stirred and ground conveniently, the printing effect is better, the control mechanism 9 on the side wall of the machine body 1 is connected with the inner container 93a connected with the spring 9b inside the fixed shell 94a, when the inside material reduction of inner bag 93a, weight reduction, the spring rises inner bag 93a, and the inner bag is contradicted dog 93 and is opened baffle 92, has realized automatic feeding, and the lateral wall block of organism 1 has the mount 24 of air outlet 21, and the lateral wall of mount 24 is fixed and deep bead 22, is connected foam-rubber cushion 23 between deep bead 22 and the mount 24, is the triangle-shaped structure between mount 34, deep bead 22 and the foam-rubber cushion 23 and has realized ventilating and heat dissipation.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A multi-station 3D printing method is characterized by comprising the following steps:

s1, inputting the three-dimensional model into a computer;

the multi-station 3D printer adopted in the method comprises a machine body (1), a dustproof mechanism (2), a charging mechanism (3), a stirring and grinding mechanism (4), a driving mechanism (5), a printing device (6), support legs (7), a drainage plate (8), a control mechanism (9), a material storage mechanism (9a) and a spring (9 b); bottom four corners department fixed connection of organism (1) is cylindrical structure be used for supporting overall structure stabilizer blade (7), the internally mounted of organism (1) is used for printing object or model printing device (6), the side of organism (1) is equipped with and is used for avoiding the dust entering that is the cuboid structure the inside of organism (1), for the inside ventilation cooling of organism (1) dustproof mechanism (2), the top installation of organism (1) is used for storing and prints that the material is hollow circular cylinder charging mechanism (3), charging mechanism (3) with the lateral wall of organism (1) is parallel, the inside rotation of charging mechanism (3) is connected and is used for grinding the material and avoids piling up the material for a long time and be triangular distribution that the piece is ground the stirring mechanism (4), the top installation drive of organism (1) the inside of charging mechanism (3) the stirring is ground the mechanism (7) 4) The side wall of the charging mechanism (3) is provided with a control mechanism (9) for controlling discharging, the surface of the machine body (1) is fixedly connected with a storage mechanism (9a) which is used for automatic discharging and has a hollow cuboid structure, the storage mechanism (9a) is abutted against the control mechanism (9), a spring (9b) for automatic charging is arranged in the storage mechanism (9a), and a drainage plate (8) for draining ground materials is arranged between the control mechanism (9) and the storage mechanism (9 a);

the dustproof mechanism (2) comprises an air outlet (21), a plurality of wind shields (22), a spongy cushion (23) and a fixing frame (24), the fixing frame (24) is clamped and connected to the side face of the machine body (1), the side wall of the fixing frame (24) is fixedly connected with the wind shields (22), an included angle between each wind shield (22) and the corresponding fixing frame (24) is 45 degrees, the spongy cushion (23) is arranged between each fixing frame (24) and the machine body (1), the spongy cushion (23), the wind shields (22) and the corresponding fixing frame (24) are of a triangular structure, the air outlet (21) used for dissipating heat of internal parts of the machine body (1) is arranged on the surface of each fixing frame (24) at equal intervals, and the maximum length of each fixing frame (24) is equal to the minimum inner diameter of the machine body (1;

the feeding mechanism (3) comprises a cover plate (31), a feeding hole (32) and a charging bucket (33), the top of the machine body (1) is fixedly connected with the charging bucket (33) which is in a hollow cylinder structure and used for stirring materials, the feeding hole (32) is formed in the top of the charging bucket (33), the top of the charging bucket (32) is rotatably connected with the cover plate (31) with an arc-shaped vertical section, and the cover plate (31) is connected with the feeding hole (23) in a clamping manner;

the control mechanism (9) comprises a first discharging opening (91), a baffle (92), a stop block (93) and a discharging hopper (94), the side wall of the charging bucket (33) is communicated with the discharging hopper (94) which is of a hollow cuboid structure, the first discharging opening (91) is arranged on the side wall of the discharging hopper (94), the baffle (92) is connected in the discharging hopper (94) in a sliding mode, the stop block (93) is symmetrically and fixedly connected to the side wall of the baffle (92), and the stop block (93) is located on the bottom edge of the side wall of the baffle (92);

the stirring and grinding mechanism (4) comprises a first latch (41), a first roller column (42), a second latch (43), three fixed columns (44), a fixed frame (45), a second roller column (46), a third roller column (47) and a fourth roller column (48), the inner side wall of the charging basket (33) is equidistantly provided with the second latch (43), the internal rotation of the charging basket (33) is connected with the second roller column (46), the internal rotation of the charging basket (33) is connected with the second roller column (42), the internal rotation of the charging basket (33) is connected with the third roller column (47), the internal rotation of the charging basket (33) is connected with the fourth roller column (48), the second roller column (46) is meshed with the first roller column (42), the third roller column (47) and the fourth roller column (48), the diameters of the first roller column (42), the third roller column (47) and the fourth roller column (48) are equal, the sum of the radius of the second roller (46) and the radius of the first roller (42) is equal to the diameter of the second roller (46), the side walls of the first roller (42), the third roller (47) and the fourth roller (48) are provided with the first latch (41), the first latch (41) is meshed with the second latch (43), the circle centers of the first roller (42), the third roller (47) and the fourth roller (48) are fixedly connected with the fixed columns (44), and the fixed frames (45) in an equilateral triangle structure are arranged on the outer sides of the three fixed columns (44);

the material storage mechanism (9a) comprises a second discharging opening (91a), a third discharging opening (92a), an inner container (93a) and a fixed shell (94a), the top of the machine body (1) is fixedly connected with the fixed shell (94a) with a hollow rectangular structure, the inner part of the fixed shell (94a) is slidably connected with the inner container (93a), a spring (9b) is fixedly connected between the bottom of the inner container (93a) and the inner wall of the bottom of the fixed shell (94a), the inner container (93a) and the side wall of the fixed shell (94a) are provided with the second discharging opening (91a), the top of the fixed shell (94a) is provided with the third discharging opening (92a), the inner container (93a) and the side wall of the discharging hopper (94) are located on the same straight line, the top of the inner container (93a) is abutted against the bottom of the stop block (93), and the side wall of the discharging hopper (94) is perpendicular to the third discharging opening (92a), the drainage plate (8) is rotatably connected to the fixed shell (94a), and the drainage plate (8) penetrates through the inner container (93 a);

the driving mechanism (5) comprises a motor (51) and a fixing frame (52), the fixing frame (52) is welded to the top of the machine body (1), the motor (51) is installed at the top of the fixing frame (52), and the motor (51) is rotationally connected with the second roller column (46).

2. The method of multistation 3D printing according to claim 1, characterized in that: the printing device (6) comprises a spray head (61), a forming supporting plate (62), a fixing plate (63) and an ash receiving hopper (64), the inside of the machine body (1) is provided with the spray head (61) for realizing 3D printing of objects or grinding tools, the inside of the machine body (1) is fixedly connected with the fixed plate (63) which is parallel to the bottom of the machine body (1), the surface of the fixing plate (63) is connected with the forming supporting plate (62) used for placing an object or a grinding tool to be printed in a sliding way, the molding supporting plate (62) is a molding supporting plate with holes, the fixing plate (63) is a fixing plate with holes, the ash receiving hopper (64) which is fixedly connected with the machine body (1) and has a trapezoidal section is arranged below the fixing plate (63), and the top area of the ash receiving hopper (64) which is hollow inside is larger than the bottom area.