CN108500272B

CN108500272B - Multistation 3D printing device

Info

Publication number: CN108500272B
Application number: CN201810493625.4A
Authority: CN
Inventors: 张梦如; 毛旭东
Original assignee: Shaoxing Lanca Intelligent Technology Co Ltd
Current assignee: Zhejiang Jinsheng Decoration Materials Co ltd
Priority date: 2018-05-22
Filing date: 2018-05-22
Publication date: 2020-08-14
Anticipated expiration: 2038-05-22
Also published as: CN108500272A

Abstract

The invention relates to the field of printers, in particular to a multi-station 3D printing device, which 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, wherein the dustproof mechanism is arranged on the machine body; 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, it is better to make the printing effect, 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.

Description

Multistation 3D printing device

Technical Field

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

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

(1) according to the multi-station 3D printing device, 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 device, 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 materials in the inner container are reduced, 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 multi-station 3D printing device, 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 device, wherein a material barrel is mounted at the top of a machine body, a stirring and grinding mechanism is rotatably connected inside the material barrel, 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, a control mechanism of the side wall of the machine body is connected with an inner container which is connected with a spring and inside a fixed shell, when the materials inside the inner container are reduced, the weight is reduced, the spring lifts the inner container, the inner container pushes against a stop block to open the stop block, automatic feeding is realized, the side wall of the machine body is clamped with a fixed frame with an air outlet, the side wall of the fixed frame is fixed with a wind shield, a sponge pad is connected between the wind shield and the fixed frame.

The technical scheme adopted by the invention for solving the technical problems is as follows: the automatic feeding machine comprises a machine body, a dustproof mechanism, a feeding 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 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 cylinder structure and used for storing printing materials, the charging mechanism is parallel to the side wall of the machine body, the internal rotation of the charging mechanism is connected with the stirring and grinding mechanism which is used for grinding materials and preventing the materials from being piled up into blocks for a long time and is distributed in a triangular shape, the top of the machine body is provided with the driving mechanism for driving the stirring and grinding mechanism in the charging mechanism, and the side wall of the charging mechanism is provided with, 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 model the shower nozzle, the inside of organism is equipped with the fixed plate, just the fixed plate with the bottom of organism is parallel, the surperficial sliding connection of fixed plate is used for placing the model that needs to print 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, organism fixed connection cross-section is the trapezium structure connect grey fill, just connect grey fill to be located the bottom of fixed plate, inside cavity connect the apical area of grey fill to be greater than the bottom surface area, 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, the mount has been seted up with the surface equidistance of foam-rubber cushion the air outlet, the air outlet be used for doing the inside part heat dissipation of organism, the maximum length of mount equals the minimum internal diameter of organism, it is right to have realized 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 the longitudinal 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 charging basket is rotatably connected with the second roller, the charging basket is rotatably connected with the third roller, the charging basket is rotatably connected with the fourth roller, 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 diameter of the first roller is equal to the radius of the charging basket, 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, the storage mechanism comprises a second feed opening, a third discharge opening, an inner container and a fixed shell, the top of the machine body is fixedly connected with the fixed shell of a hollow rectangular structure, the inner container is arranged in the fixed shell, the inner container is in sliding connection with the fixed shell through a spring, the inner container slides in the fixed shell through the compression of the spring, the second feed opening is formed in the side wall of the inner container and the side wall of the fixed shell, the third discharge opening is formed in the top of the fixed shell, the inner container and the side wall of the discharge hopper are located on the same straight line, the top of the inner container is abutted against the bottom of the stop block, the side wall of the discharge hopper is perpendicular to the third discharge opening, the drainage plate is rotatably installed on the fixed shell, one end of the drainage plate penetrates through the inner container and is located in the inner container, and the collection of the material of the storage mechanism is realized, automatic blanking reduces labor 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 apparatus according to a preferred embodiment of the present invention;

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 multi-station 3D printing device according to the present invention includes a machine body 1, a dust prevention mechanism 2, a charging mechanism 3, a stirring and grinding mechanism 4, a driving mechanism 5, a printing device 6, support legs 7, a flow guide 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 cylinder structure 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 mechanisms 4 which are used for grinding materials and preventing the materials from being piled up into blocks for a long time and are distributed in a triangular mode, the top of the machine body 1 is provided with the driving mechanism 5 for driving the stirring and grinding mechanisms 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 5 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, the printing device 6 of the invention includes a nozzle 61, a forming support plate 62, a fixing plate 63 and an ash receiving bucket 64, the nozzle 61 for 3D printing of an object or a model is installed inside the machine body 1, the fixing plate 63 is parallel to the bottom of the machine body 1, the surface of the fixing plate 63 is slidably connected to the forming support plate 62 for placing the model to be printed, the forming support plate 62 is a forming support plate with holes, the fixing plate 63 is a fixing plate with holes, the machine body 1 is fixedly connected to the ash receiving bucket 64 with a trapezoidal cross section, the ash receiving bucket 64 is located at the bottom of the fixing plate 63, the top area of the ash receiving bucket 64 which is hollow inside is larger than the bottom area, the printing of the article to be printed is realized.

Specifically, as shown in fig. 1 and 5, the multi-station 3D printing apparatus according to the present invention, the dustproof mechanism 2 comprises an air outlet 21, a plurality of wind shields 22, a spongy cushion 23 and a fixed frame 24, the side surface of the machine body 1 is clamped and connected with the fixed frame 24, the side wall of the fixed frame 24 is fixedly connected with the wind shield 22, the included angle between the wind shield 22 and the fixing frame 24 is 45 degrees, the spongy cushion 23 is arranged between the fixing frame 24 and the machine body 1, the sponge cushion 23, the wind shield 22 and the fixing frame 24 are in a triangular structure, the fixed frame 24 and the sponge cushion 23 are provided with the air outlet 21 at equal intervals, the air outlet 21 is used for dissipating heat of internal parts of the machine body 1, the maximum length of the fixing frame 24 is equal to the minimum inner diameter of the machine body 1, so that ventilation and heat dissipation of the interior of the machine body 1 are realized.

Specifically, as shown in fig. 1, the loading mechanism 3 of the multi-station 3D printing device includes a cover plate 31, a feeding port 32 and a charging barrel 33, the top of the machine body 1 is fixedly connected with the charging barrel 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 barrel 33, the top of the charging barrel 33 is rotatably connected with the cover plate 31 which is in an arc-shaped structure in longitudinal section, and the cover plate 31 is connected with the feeding port 23 in a clamping manner, so that the charging into the charging barrel 33 is realized.

Specifically, as shown in fig. 1 and fig. 2, the stirring and grinding mechanism 4 of the multi-station 3D printing apparatus according to the present invention 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 diameter of the first roller 42 is equal to a radius of the barrel 33, 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, the control mechanism 9 of the multi-station 3D printing device 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 disposed on the side wall of the discharge hopper 94, the inside of the discharge hopper 94 is slidably connected to the baffle 92, the side wall of the baffle 92 is symmetrically and fixedly connected to the stopper 93, and the stopper 93 is located at the bottom edge of the side wall of the baffle 92, so that the inside of the charging basket 33 is sealed, and blanking is controlled.

Specifically, as shown in fig. 3 and 4, the storage mechanism 9a of the multi-station 3D printing device includes a second feeding hole 91a, a third feeding hole 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 disposed inside the fixed shell 94a, the inner container 93a is slidably connected to the fixed shell 94a through the spring 9b, the inner container 93a slides inside the fixed shell 94a through compression of the spring 9b, the second feeding hole 91a is disposed on the side walls of the inner container 93a and the fixed shell 94a, the third feeding hole 92a is disposed on the top of the fixed shell 94a, the inner container 93a and the side walls of the feeding 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 discharge hopper 94 is perpendicular to the third discharge hole 92a, the drainage plate 8 is rotatably mounted on the fixed shell 94a, one end of the drainage plate 8 penetrates through the inner container 93a and is located inside the inner container 93a, the collection of materials of the charging mechanism 3 is achieved, and the labor time is reduced through automatic discharging.

Specifically, as shown in fig. 1, the driving mechanism 5 of the multi-station 3D printing device 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 slidably 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 is abutted 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 multi-station 3D printing device, the charging basket 33 is mounted 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. The utility model provides a multistation 3D printing device which characterized in that: 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 the dust of avoiding that is used for of being the cuboid structure gets into the inside of organism (1), does the inside ventilation cooling of organism (1) dustproof mechanism (2), the top installation of organism (1) is used for storing and prints the hollow circular cylinder structure be 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) is ground the stirring machine Construct (4) actuating mechanism (5), the lateral wall of charging mechanism (3) is equipped with the control unloading control mechanism (9), the fixed surface of organism (1) is connected and is used for the cavity cuboid structure of automatic unloading storage mechanism (9a), storage mechanism (9a) with control mechanism (9) are contradicted, the internally mounted of storage mechanism (9a) is used for automatic feeding spring (9b), control mechanism (5) with be equipped with between storage mechanism (9a) and be used for the drainage to grind the material after drainage board (8).

2. The multi-station 3D printing device according to claim 1, wherein: 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 spray head (61) for realizing 3D printing of objects or models is arranged in the machine body (1), the fixing plate (63) is arranged in the machine body (1), the fixed plate (63) is parallel to the bottom of the machine body (1), the surface of the fixed plate (63) is connected with the molding supporting plate (62) used for placing the model 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 machine body (1) is fixedly connected with the ash receiving hopper (64) with the cross section in a trapezoidal structure, the ash receiving hopper (64) is positioned at the bottom of the fixing plate (63), and the top area of the ash receiving hopper (64) which is hollow inside is larger than the bottom area.

3. The multi-station 3D printing device according to claim 1, wherein: the dustproof mechanism (2) comprises an air outlet (21), a plurality of wind shields (22), a spongy cushion (23) and a fixed frame (24), the side surface of the machine body (1) is clamped and connected with the fixed frame (24), the side wall of the fixed frame (24) is fixedly connected with the wind shield (22), the included angle between the wind shield (22) and the fixed frame (24) is 45 degrees, the spongy cushion (23) is arranged between the fixed mount (24) and the machine body (1), the sponge cushion (23), the wind shield (22) and the fixing frame (24) are in a triangular structure, the fixed frame (24) and the surface of the spongy cushion (23) are provided with the air outlet (21) at equal intervals, the air outlet (21) is used for dissipating heat of internal parts of the machine body (1), the maximum length of the fixed frame (24) is equal to the minimum inner diameter of the machine body (1).

4. A multi-station 3D printing device according to claim 3, characterized in that: charging mechanism (3) are including apron (31), feed inlet (32) and storage bucket (33), the top fixed connection of organism (1) is that being used for of hollow cylinder structure stirs material storage bucket (33), the top of storage bucket (33) is seted up feed inlet (32), the top of storage bucket (33) is rotated and is connected the longitudinal section and be the arc structure apron (31), apron (31) with feed inlet (23) block is connected.

5. The multi-station 3D printing device according to claim 4, wherein: 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 radius of second roller (46) with the diameter sum of first roller (42) equals the radius of storage bucket (33), first roller (42), third roller (47), the lateral wall of fourth roller (48) is equipped with first latch (41), first latch (41) with second latch (43) meshing, the centre of a circle department fixed connection fixed column (44) of first roller (42), third roller (47), fourth roller (48), three the outside of fixed column (44) is equipped with and is equilateral triangle structure fixed frame (45).

6. The multi-station 3D printing device according to claim 4, wherein: control mechanism (9) include first feed opening (91), baffle (92), dog (93) and play hopper (94), the lateral wall of storage bucket (33) with be cavity cuboid structure go out hopper (94) intercommunication, the lateral wall that goes out hopper (94) is equipped with first feed opening (91), the inside sliding connection that goes out hopper (94) baffle (92), the lateral wall symmetry fixed connection of baffle (92) dog (93), dog (93) are located the lateral wall bottom border department of baffle (92).

7. The multi-station 3D printing device according to claim 6, wherein: the storage mechanism (9a) comprises a second feed opening (91a), a third feed 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) in a hollow rectangular structure, the inner container (93a) is arranged inside the fixed shell (94a), the inner container (93a) is connected with the fixed shell (94a) in a sliding mode through a spring (9b), the inner container (93a) slides in the fixed shell (94a) through compression of the spring (9b), the second feed opening (91a) is formed in the side wall of the fixed shell (94a), the third feed opening (92a) is formed in the top of the fixed shell (94a), and the inner container (93a) and the side wall of the feed 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), the side wall of the discharge hopper (94) is perpendicular to the third discharge hole (92a), the drainage plate (8) is rotatably mounted on the fixed shell (94a), and one end of the drainage plate (8) penetrates through the inner container (93a) and is located inside the inner container (93 a).

8. The multi-station 3D printing device according to claim 5, wherein: 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).