CN111169012A

CN111169012A - 3D printing material quantitative mixing equipment

Info

Publication number: CN111169012A
Application number: CN202010144676.3A
Authority: CN
Inventors: 不公告发明人
Original assignee: Dongyang Junkang Stationery Co Ltd
Current assignee: Dongyang Junkang Stationery Co Ltd
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2020-05-19

Abstract

The invention discloses quantitative mixing equipment for 3D printing materials, which comprises a working box and a feeding cavity, wherein the feeding cavity is positioned in the working box and is upwards opened, the feeding cavity is arranged in a bilateral symmetry manner, a first cavity is fixedly arranged in the working box and is positioned at the left side of the feeding cavity, the first cavity is arranged in a bilateral symmetry manner, a first sealing plate capable of sealing the upper opening of the feeding cavity is arranged on the inner wall of the upper side of the first cavity in a sliding manner, the invention relates to full-automatic material mixing equipment, and a fan blade can fully cool powdered materials entering the feeding cavity, the electromagnet can accurately control the amount of the materials to be mixed for the cooled materials, and the stirring roller can quickly stir different materials, fully mix the materials and take out the materials, so that the next mechanical operation of 3D printing is facilitated, the time is saved, and the working efficiency is greatly improved.

Description

3D printing material quantitative mixing equipment

Technical Field

The invention relates to the technical field of 3D printing, in particular to quantitative mixing equipment for a 3D printing material.

Background

The 3D printing technology is a technology that various powdery raw materials are adopted, three-dimensional programming is carried out by a computer, a manipulator carries out solid modeling according to a three-dimensional drawing, the existing technology is troublesome, the working efficiency is low, and errors are easily generated by manually mixing the materials after the materials are powdery, and therefore, a 3D printing material quantitative mixing device is urgently needed to solve the problems.

Disclosure of Invention

The invention aims to provide a 3D printing material quantitative mixing device, which overcomes the problems.

The invention is realized by the following technical scheme.

A3D printing material quantitative mixing device comprises a working box and a feeding cavity which is positioned in the working box and is provided with an upward opening, the feeding cavity is arranged in a bilateral symmetry mode, a first cavity which is positioned on the left side of the feeding cavity is fixedly arranged in the working box, the first cavity is arranged in a bilateral symmetry mode, a first sealing plate which can seal the upper opening of the feeding cavity is arranged on the inner wall of the upper side of the first cavity in a sliding mode, the first sealing plate extends rightwards into the feeding cavity, the left end face of the first sealing plate is connected with the inner wall of the left side of the first cavity through a first stretching spring, a power device which can enable the first sealing plate to slide is arranged in the first cavity, a mixing cavity which is positioned on the lower side of the feeding cavity is fixedly arranged in the working box, the mixing cavity is communicated with the feeding cavity through a second cavity, a first sliding chute which is positioned on the left side of the second cavity and is communicated with the second cavity is fixedly arranged in the, it can seal to slide in the first spout the second closure plate of second cavity, second closure plate left end face with first spout left side inner wall passes through first compression spring and connects, can make when the second cavity is opened the material ration in the feeding intracavity gets into in the mixing chamber, the work box sets firmly and is located the motor of mixing chamber downside, the rotation of motor up end is equipped with upwards extends to the motor shaft in the mixing chamber, set firmly on the motor shaft and be located the stirring roller in the mixing chamber, the stirring roller can be with getting into the material stirring in the mixing chamber mixes.

Furthermore, a third cavity which is positioned at the lower side of the mixing cavity and is communicated up and down is fixedly arranged in the working box, the third cavity is symmetrically arranged in front and back, a second chute which is positioned at the rear side of the third cavity and communicated with the third cavity is fixedly arranged in the working box, a third sealing plate capable of sealing the upper opening of the third cavity is arranged in the second sliding chute in a sliding manner, the rear end face of the third sealing plate is connected with the inner wall of the rear side of the second sliding chute through a second compression spring, a fourth cavity which is positioned at the rear side of the mixing cavity and is opened backwards is fixedly arranged in the working box, the fourth cavity is symmetrically arranged in the front and the back, the rotating handle is arranged in the fourth cavity in a rotating mode, part of the rotating handle is located on the outer side of the working box, the first winding wheel located in the fourth cavity is fixedly arranged on the rotating handle, and the first winding wheel is connected with the rear end face of the third sealing plate through a first pull rope.

Furthermore, a fifth cavity which is positioned at the lower side of the first cavity and is provided with an upward opening and communicated with the first cavity is fixedly arranged in the working box, an air inlet which is positioned at the left side of the fifth cavity and is communicated with the left and the right is fixedly arranged in the working box, the fifth cavity is communicated with the feeding cavity, a one-way air inlet valve is fixedly arranged on the inner wall of the right side of the fifth cavity, a first rotating shaft is rotatably arranged on the inner wall of the left side of the fifth cavity, a fan blade is fixedly arranged on the first rotating shaft, a second rotating shaft which is positioned on the upper side of the first rotating shaft is rotatably arranged on the inner wall of the left side of the first cavity, the second rotating shaft is in transmission connection with the first rotating shaft through a first belt pulley, a first bevel gear which is positioned on the left side of the first belt pulley is fixedly arranged on the second rotating shaft, an air outlet which is positioned between the feeding cavities and, and a one-way air outlet valve is fixedly arranged in the air outlet hole and is arranged in a bilateral symmetry manner.

Further, the power device comprises a third rotating shaft which is rotatably connected with the front cavity wall and the rear cavity wall of the first cavity, the third rotating shaft is positioned at the lower side of the first closing plate, the lower side part of the first closing plate is provided with a tooth surface, a first gear which is meshed with the lower tooth surface of the first closing plate is fixedly arranged on the third rotating shaft, a fourth rotating shaft which is positioned at the lower side of the third rotating shaft is rotatably arranged on the front cavity wall and the rear cavity wall of the first cavity, the fourth rotating shaft is in transmission connection with the third rotating shaft through a second belt pulley, a second bevel gear which is positioned at the rear side of the second belt pulley is fixedly arranged on the fourth rotating shaft, a sixth cavity which is positioned at the upper side of the motor and at the lower side of the mixing cavity is fixedly arranged in the working box, the motor shaft penetrates through the sixth cavity, a fifth rotating shaft is rotatably arranged on the inner wall at the lower side of the sixth cavity, the outer end wall of the fifth rotating shaft is fixedly provided with a one-way bearing positioned in the third belt pulley, the fifth rotating shaft extends upwards into the first cavity, and the top end of the top of the fifth rotating shaft is fixedly provided with a third bevel gear meshed with the second bevel gear.

Furthermore, a third chute which is positioned at the lower side of the first cavity and is provided with an upward opening communicated with the first cavity is fixedly arranged in the working box, a first slide block is arranged in the third sliding groove in a sliding manner, the right end surface of the first slide block is connected with the inner wall of the right side of the third sliding groove through a second extension spring, the left end surface of the first sliding block is connected with the left end surface of the first sealing plate through a second pull rope, the upper end surface of the first sliding block is rotatably provided with a sixth rotating shaft positioned in the first cavity, the sixth rotating shaft is in transmission connection with the fifth rotating shaft through a fourth belt pulley, a fourth bevel gear positioned on the upper side of the fourth belt pulley is fixedly arranged on the sixth rotating shaft, when the first sliding block slides leftwards to abut against the inner wall of the left side of the third sliding groove, the fourth belt pulley is in a tensioned state, and the fourth bevel gear is meshed with the first bevel gear.

Furthermore, a fourth chute which is positioned at the upper side of the sixth cavity and has a downward opening communicated with the sixth cavity is fixedly arranged in the working box, the fourth chute is arranged in bilateral symmetry, an electromagnet is fixedly arranged on the left cavity wall of the fourth chute, a second slider which is positioned at the right side of the electromagnet is arranged in the fourth chute in a sliding manner, the right end surface of the electromagnet is connected with the left end surface of the second slider through a third extension spring, a seventh rotating shaft which is positioned in the sixth cavity is rotatably arranged on the lower end surface of the second slider, a second gear is fixedly arranged on the seventh rotating shaft, an eighth rotating shaft which is positioned at the left side of the seventh rotating shaft is rotatably arranged on the inner wall of the upper side of the sixth cavity, the eighth rotating shaft and the seventh rotating shaft are in transmission connection through a fifth belt pulley, the fifth belt pulley is positioned on the upper side of the second gear, and a second winding wheel which is positioned at the lower side of the fifth belt pulley, the second winding wheel is connected with the left end face of the second sealing plate through a third pull rope, and a third gear located on the right side of the second gear is fixedly arranged on the motor shaft.

The invention has the beneficial effects that: the invention relates to a full-automatic material mixing device, wherein the fan blade can fully cool the powdery material entering a feeding cavity, and the quantity of the material to be mixed can be accurately controlled by the electromagnet of the invention.

Drawings

The invention will now be described in detail with reference to fig. 1-4, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

Fig. 1 is a schematic overall structure diagram of a 3D printing material quantitative mixing apparatus according to the present invention;

3 FIG. 32 3 is 3 a 3 schematic 3 view 3 of 3 the 3 structure 3 at 3 A 3- 3 A 3 in 3 FIG. 31 3; 3

FIG. 3 is a schematic view of the structure at B in FIG. 1;

fig. 4 is a schematic structural diagram at C in fig. 1.

Detailed Description

The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.

As shown in fig. 1 to 4, a 3D printing material quantitative mixing device includes a working box 10 and a feeding cavity 67 located in the working box 10 and opened upward, the feeding cavity 67 is arranged in bilateral symmetry, a first cavity 22 located on the left side of the feeding cavity 67 is fixedly arranged in the working box 10, the first cavity 22 is arranged in bilateral symmetry, a first closing plate 21 capable of closing the upper opening of the feeding cavity 67 is slidably arranged on the inner wall of the upper side of the first cavity 22, the first closing plate 21 extends rightward into the feeding cavity 67, the left end surface of the first closing plate 21 is connected with the inner wall of the left side of the first cavity 22 through a first extension spring 44, a power device 71 capable of sliding the first closing plate 21 is arranged in the first cavity 22, a mixing cavity 30 located on the lower side of the feeding cavity 67 is fixedly arranged in the working box 10, the mixing cavity 30 is communicated with the feeding cavity 67 through a second cavity 17, the utility model discloses a material mixing device, including work box 10, second cavity 17, first spout 19, second closing plate 18, motor 33, motor shaft 34, stirring roller 35 can be with the material that gets into in the mixing chamber 30, work box 10 sets firmly be located in the left side of second cavity 17 and with the first spout 19 intercommunication 19, it is equipped with in the first spout 19 and seals to slide, second closing plate 18 left end face with the inner wall of first spout 19 left side passes through first compression spring 15 and is connected, second cavity 17 can make when being opened the material ration in the feeding chamber 67 gets into in the mixing chamber 30, set firmly in work box 10 is located the motor 33 of mixing chamber 30 downside, motor 33 up end rotates and is equipped with upwards extends to the motor shaft 34 in the mixing chamber 30, set firmly on the motor shaft 34 is located the mixing chamber 30 stirring roller 35, stirring roller 35 can be with the material stirring that gets into in the mixing chamber.

Advantageously, a third cavity 43 which is located at the lower side of the mixing cavity 30 and is through up and down is fixedly arranged in the working box 10, the third cavity 43 is symmetrically arranged in front and back, a second sliding chute 40 which is located at the rear side of the third cavity 43 and is communicated with the third cavity 43 is fixedly arranged in the working box 10, a third closing plate 42 which can close the upper opening of the third cavity 43 is slidably arranged in the second sliding chute 40, the rear end face of the third closing plate 42 is connected with the inner wall of the rear side of the second sliding chute 40 through a second compression spring 41, a fourth cavity 39 which is located at the rear side of the mixing cavity 30 and is open in back is fixedly arranged in the working box 10, the fourth cavity 39 is symmetrically arranged in front and back, a rotating handle 38 which is partially located at the outer side of the working box 10 is rotatably arranged in the fourth cavity 39, a first winding wheel 37 which is located in the fourth cavity 39 is fixedly arranged on the rotating handle 38, the first reel 37 and the rear end surface of the third closing plate 42 are connected by a first cord 36.

Beneficially, a fifth cavity 29 located at the lower side of the first cavity 22 and having an upward opening communicating with the first cavity 22 is fixedly disposed in the working box 10, an air inlet 68 located at the left side of the fifth cavity 29 and penetrating left and right is fixedly disposed in the working box 10, the fifth cavity 29 is communicated with the feeding cavity 67, a one-way air inlet valve 52 is fixedly disposed on the inner wall of the right side of the fifth cavity 29, a first rotating shaft 54 is rotatably disposed on the inner wall of the left side of the fifth cavity 29, a fan blade 53 is fixedly disposed on the first rotating shaft 54, a second rotating shaft 24 located on the upper side of the first rotating shaft 54 is rotatably disposed on the inner wall of the left side of the first cavity 22, the second rotating shaft 24 is in transmission connection with the first rotating shaft 54 through a first belt pulley 55, a first bevel gear 23 located at the left side of the first belt pulley 55 is fixedly disposed on the second rotating shaft 24, an air outlet 20 located between the feeding cavities 67 and having an upward opening is fixedly disposed, the air outlet 20 is communicated with the feeding cavity 67, a one-way air outlet valve 16 is fixedly arranged in the air outlet 20, and the one-way air outlet valve 16 is arranged in a left-right symmetrical mode.

Advantageously, the power device 71 includes a third rotating shaft 46 rotatably connected to the front and rear cavity walls of the first cavity 22, the third rotating shaft 46 is located at the lower side of the first closing plate 21, the lower side portion of the first closing plate 21 is provided with a tooth surface, a first gear 45 engaged with the lower tooth surface of the first closing plate 21 is fixedly provided on the third rotating shaft 46, a fourth rotating shaft 49 located at the lower side of the third rotating shaft 46 is rotatably provided on the front and rear cavity walls of the first cavity 22, the fourth rotating shaft 49 is in transmission connection with the third rotating shaft 46 through a second pulley 47, a second bevel gear 48 located at the rear side of the second pulley 47 is fixedly provided on the fourth rotating shaft 49, a sixth cavity 12 located at the upper side of the motor 33 and at the lower side of the mixing cavity 30 is fixedly provided in the working box 10, the motor shaft 34 penetrates through the sixth cavity 12, a fifth rotating shaft 13 is rotatably provided on the inner wall at the lower side of the sixth cavity 12, the fifth rotating shaft 13 is in transmission connection with the motor shaft 34 through a third belt pulley 32, the outer end wall of the fifth rotating shaft 13 is fixedly provided with a one-way bearing 11 positioned in the third belt pulley 32, the fifth rotating shaft 13 extends upwards into the first cavity 22, and the top end of the top of the fifth rotating shaft 13 is fixedly provided with a third bevel gear 50 meshed with the second bevel gear 48.

Advantageously, a third sliding groove 25 located at the lower side of the first cavity 22 and having an upward opening communicating with the first cavity 22 is fixedly disposed in the working box 10, a first sliding block 27 is slidably disposed in the third sliding groove 25, a right end surface of the first sliding block 27 is connected with a right inner wall of the third sliding groove 25 through a second extension spring 28, a left end surface of the first sliding block 27 is connected with a left end surface of the first closing plate 21 through a second pull rope 26, a sixth rotating shaft 56 located in the first cavity 22 is rotatably disposed on an upper end surface of the first sliding block 27, the sixth rotating shaft 56 is in transmission connection with the fifth rotating shaft 13 through a fourth pulley 51, a fourth bevel gear 57 located on an upper side of the fourth pulley 51 is fixedly disposed on the sixth rotating shaft 56, and when the first sliding block 27 slides to the left to abut against a left inner wall of the third sliding groove 25, the fourth pulley 51 is in a tensioned state, the fourth bevel gear 57 is engaged with the first bevel gear 23.

Beneficially, a fourth sliding chute 61 located at the upper side of the sixth cavity 12 and having a downward opening communicated with the sixth cavity 12 is fixedly disposed in the working box 10, the fourth sliding chute 61 is disposed in bilateral symmetry, an electromagnet 58 is fixedly disposed on the left cavity wall of the fourth sliding chute 61, a second sliding block 60 located at the right side of the electromagnet 58 is slidably disposed in the fourth sliding chute 61, the right end surface of the electromagnet 58 is connected with the left end surface of the second sliding block 60 through a third tension spring 59, a seventh rotating shaft 64 located in the sixth cavity 12 is rotatably disposed on the lower end surface of the second sliding block 60, a second gear 63 is fixedly disposed on the seventh rotating shaft 64, an eighth rotating shaft 66 located at the left side of the seventh rotating shaft 64 is rotatably disposed on the upper inner wall of the sixth cavity 12, the eighth rotating shaft 66 is connected with the seventh rotating shaft 64 through a fifth belt pulley 62, and the fifth belt pulley 62 is located on the upper side of the second gear 63, a second winding wheel 65 positioned on the lower side of the fifth belt pulley 62 is fixedly arranged on the eighth rotating shaft 66, the second winding wheel 65 is connected with the left end surface of the second closing plate 18 through a third pull rope 14, and a third gear 31 positioned on the right side of the second gear 63 is fixedly arranged on the motor shaft 34.

Sequence of mechanical actions of the whole device:

the initial state of the invention is as follows: the electromagnet 58 is not powered on, the third extension spring 59 is in a relaxed state, the fifth belt pulley 62 is in a relaxed state, the third pull rope 14 is in a relaxed state, the first compression spring 15 is in a relaxed state, the second closing plate 18 closes the second cavity 17, the first extension spring 44 is in a relaxed state, the second pull rope 26 is in a relaxed state, the second extension spring 28 is in a relaxed state, the fourth bevel gear 57 is not engaged with the first bevel gear 23, the fourth belt pulley 51 is in a relaxed state, the first pull rope 36 is in a relaxed state, the second compression spring 41 is in a relaxed state, and the third closing plate 42 closes the third cavity 43;

1. when materials to be subjected to 3D printing are required to be mixed, different materials are respectively placed into the feeding cavity 67, when all the materials are placed into the feeding cavity 67, the motor 33 starts to rotate forwardly to drive the motor shaft 34 to rotate, the motor shaft 34 and the fifth rotating shaft 13 are in transmission connection through the third belt pulley 32, so that the fifth rotating shaft 13 rotates under the action of the one-way bearing 11, the fifth rotating shaft 13 rotates to drive the third bevel gear 50 to rotate, the third bevel gear 50 is meshed with the second bevel gear 48, the third bevel gear 50 rotates to drive the second bevel gear 48 to rotate, the second bevel gear 48 rotates to drive the fourth rotating shaft 49 to rotate, the fourth rotating shaft 49 is in transmission connection with the third rotating shaft 46 through the second belt pulley 47, the fourth rotating shaft 49 rotates to drive the third rotating shaft 46 to rotate, the third rotating shaft 46 rotates to drive the first gear 45 to rotate, and the first gear 45 is meshed with the lower tooth surface of the first sealing plate 21, the first gear 45 rotates to slide the first closing plate 21 to the right, the first closing plate 21 slides to the right to pull the second pull rope 26, so that the first extension spring 44 is in an extension state, and the first closing plate 21 slides to the right to close the upper opening of the feeding cavity 67;

2. when the upper opening of the feeding cavity 67 is completely closed, the second pull rope 26 is pulled tightly to pull the first slide block 27 to slide leftward, the first slide block 27 slides leftward to pull the second extension spring 28, the first slide block 27 slides leftward to abut against the left cavity wall of the third sliding chute 25, so that the fourth bevel gear 57 is engaged with the first bevel gear 23, so that the fourth belt pulley 51 is in a tensioned state, since the fifth rotating shaft 13 and the sixth rotating shaft 56 are rotatably connected through the fourth belt pulley 51, the fifth rotating shaft 13 rotates to drive the sixth rotating shaft 56 to rotate, the sixth rotating shaft 56 rotates to drive the fourth bevel gear 57 to rotate, the fourth bevel gear 57 rotates to drive the first bevel gear 23 to rotate, the first bevel gear 23 rotates to drive the second rotating shaft 24 to rotate, since the second rotating shaft 24 is drivingly connected with the first rotating shaft 54 through the first belt pulley 55, the second rotating shaft 24 rotates to drive the first rotating shaft 54 to rotate, and the first rotating shaft 54 rotates to drive the fan blades, the fan blades 53 rotate to blow outside air into the feeding cavity 67 through the air inlet 68 and the one-way air inlet valve 52, so as to cool the material in the feeding cavity 67;

3. when the material in the feeding cavity 67 is completely cooled, the motor 33 is stopped to start to reset the first extension spring 44, the first extension spring 44 is reset to drive the first closing plate 21 to slide leftwards, the upper opening of the feeding cavity 67 is opened, the second pull rope 26 is loosened to reset the second extension spring 28, and the second extension spring 28 is reset to disengage the first bevel gear 23 from the fourth bevel gear 57, so that the fan blades 53 are stopped to rotate;

4. when the material in the feeding cavity 67 on the left side needs to quantitatively enter the mixing cavity 30, the electromagnet 58 on the left side is electrified to slide the second sliding block 60 to the right, the third extension spring 59 is extended, the second sliding block 60 slides to the right to drive the seventh rotating shaft 64 to slide to the right, when the second sliding block 60 slides to the right to abut against the right cavity wall of the fourth sliding chute 61, the fifth belt pulley 62 is in a tensioning state, the second gear 63 is meshed with the third gear 31, the motor 33 is started to rotate reversely to drive the motor shaft 34 to rotate reversely, the motor shaft 34 rotates to drive the third gear 31 to rotate, the third gear 31 rotates to drive the second gear 63 to rotate, the second gear 63 rotates to drive the seventh rotating shaft 64 to rotate, because the seventh rotating shaft 64 is rotationally connected with the eighth rotating shaft 66 through the fifth belt pulley 62, the seventh rotating shaft 64 rotates to drive the eighth rotating shaft 66 to rotate, the eighth rotating shaft 66 rotates to drive, the second winding wheel 65 rotates to tighten the third pull rope 14, the third pull rope 14 is tightened to pull the second closing plate 18 to slide leftwards, the second cavity 17 is opened, so that the material in the left feeding cavity 67 falls into the mixing cavity 30, after the material in the left side is added, the electromagnet 58 in the left side is powered off, the third stretching spring 59 is reset to enable the second sliding block 60 to slide leftwards, the second gear 63 in the left side is disengaged from the third gear 31, and the electromagnet 58 in the right side is powered on, so that the material in the right feeding cavity 67 enters the mixing cavity 30;

5. after the materials enter the mixing cavity 30 according to a certain proportion, the electromagnet 58 on the right side stops electrifying, the motor shaft 34 rotates to drive the stirring roller 35 to rotate, the materials in the mixing cavity 30 are completely mixed, and the motor 33 stops starting after the materials are mixed;

6. the rotating handle 38 is rotated to drive the first coiling wheel 37 to rotate, the first coiling wheel 37 rotates to tighten the first pull rope 36, the first pull rope 36 is tightened to pull the third sealing plate 42 to slide backwards, the third sealing plate 42 slides backwards to compress the second compression spring 41, and the upper opening of the third cavity 43 is opened, so that the mixed material in the mixing cavity 30 slides out through the third cavity 43 and is placed into a 3D printing device for use;

7. after use is completed, the present invention restores the original position.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a 3D printing material ration mixing apparatus, includes the work box and is located in the work box and the open-ended feeding chamber that makes progress, feeding chamber bilateral symmetry sets up, the work box has set firmly and is located the left first cavity in feeding chamber, first cavity bilateral symmetry sets up, first cavity upside inner wall slides and is equipped with and seals the first closing plate of feeding chamber suitable for reading, first closing plate extends to right the feeding intracavity, first closing plate left end face with first cavity left side inner wall is through first extension spring connection, its characterized in that: a power device capable of enabling the first sealing plate to slide is arranged in the first cavity, a mixing cavity positioned on the lower side of the feeding cavity is fixedly arranged in the working box, the mixing cavity is communicated with the feeding cavity through a second cavity, a first chute positioned on the left side of the second cavity and communicated with the second cavity is fixedly arranged in the working box, a second sealing plate capable of sealing the second cavity is slidably arranged in the first chute, the left end surface of the second sealing plate is connected with the inner wall of the left side of the first chute through a first compression spring, when the second cavity is opened, materials in the feeding cavity can quantitatively enter the mixing cavity, a motor positioned on the lower side of the mixing cavity is fixedly arranged in the working box, a motor shaft extending upwards into the mixing cavity is rotatably arranged on the upper end surface of the motor, and a stirring roller positioned in the mixing cavity is fixedly arranged on the motor shaft, the stirring roller can stir and mix the materials entering the mixing cavity.

2. The 3D printing material quantitative mixing apparatus according to claim 1, wherein: a third cavity which is positioned at the lower side of the mixing cavity and is communicated up and down is fixedly arranged in the working box, the third cavity is symmetrically arranged in front and back, a second chute which is positioned at the rear side of the third cavity and communicated with the third cavity is fixedly arranged in the working box, a third sealing plate capable of sealing the upper opening of the third cavity is arranged in the second sliding chute in a sliding manner, the rear end face of the third sealing plate is connected with the inner wall of the rear side of the second sliding chute through a second compression spring, a fourth cavity which is positioned at the rear side of the mixing cavity and is opened backwards is fixedly arranged in the working box, the fourth cavity is symmetrically arranged in the front and the back, the rotating handle is arranged in the fourth cavity in a rotating mode, part of the rotating handle is located on the outer side of the working box, the first winding wheel located in the fourth cavity is fixedly arranged on the rotating handle, and the first winding wheel is connected with the rear end face of the third sealing plate through a first pull rope.

3. The 3D printing material quantitative mixing apparatus according to claim 1, wherein: a fifth cavity which is positioned at the lower side of the first cavity and is provided with an upward opening communicated with the first cavity is fixedly arranged in the working box, an air inlet which is positioned at the left side of the fifth cavity and is communicated with the left and the right is fixedly arranged in the working box, the fifth cavity is communicated with the feeding cavity, a one-way air inlet valve is fixedly arranged on the inner wall of the right side of the fifth cavity, a first rotating shaft is rotatably arranged on the inner wall of the left side of the fifth cavity, a fan blade is fixedly arranged on the first rotating shaft, a second rotating shaft which is positioned at the upper side of the first rotating shaft is rotatably arranged on the inner wall of the left side of the first cavity, the second rotating shaft is in transmission connection with the first rotating shaft through a first belt pulley, a first bevel gear which is positioned at the left side of the first belt pulley is fixedly arranged on the second rotating shaft, an air outlet which is positioned between the feeding cavities, and a one-way air outlet valve is fixedly arranged in the air outlet hole and is arranged in a bilateral symmetry manner.

4. The 3D printing material quantitative mixing apparatus according to claim 1, wherein: the power device comprises a third rotating shaft which is rotationally connected with the front cavity wall and the rear cavity wall of the first cavity, the third rotating shaft is positioned at the lower side of the first sealing plate, the lower side part of the first sealing plate is provided with a tooth surface, a first gear which is meshed with the lower tooth surface of the first sealing plate is fixedly arranged on the third rotating shaft, a fourth rotating shaft which is positioned at the lower side of the third rotating shaft is rotationally arranged on the front cavity wall and the rear cavity wall of the first cavity, the fourth rotating shaft and the third rotating shaft are in transmission connection through a second belt pulley, a second bevel gear which is positioned at the rear side of the second belt pulley is fixedly arranged on the fourth rotating shaft, a sixth cavity which is positioned at the upper side of the motor and at the lower side of the mixing cavity is fixedly arranged in the working box, the motor shaft penetrates through the sixth cavity, a fifth rotating shaft is rotatably arranged on the inner wall at the lower side of the, the outer end wall of the fifth rotating shaft is fixedly provided with a one-way bearing positioned in the third belt pulley, the fifth rotating shaft extends upwards into the first cavity, and the top end of the top of the fifth rotating shaft is fixedly provided with a third bevel gear meshed with the second bevel gear.

5. The 3D printing material quantitative mixing device according to claim 3, characterized in that: a third chute which is positioned at the lower side of the first cavity and is communicated with the first cavity through an upward opening is fixedly arranged in the working box, a first sliding block is arranged in the third chute in a sliding manner, the right end face of the first sliding block is connected with the right inner wall of the third chute through a second extension spring, the left end face of the first sliding block is connected with the left end face of the first sealing plate through a second pull rope, a sixth rotating shaft which is positioned in the first cavity is rotatably arranged on the upper end face of the first sliding block, the sixth rotating shaft is in transmission connection with the fifth rotating shaft through a fourth belt pulley, a fourth bevel gear which is positioned on the upper side of the fourth belt pulley is fixedly arranged on the sixth rotating shaft, and when the first sliding block slides leftwards to abut against the left inner wall of the third chute, the fourth belt pulley is in a tensioned state, and the fourth bevel gear is meshed with the first bevel gear.

6. The 3D printing material quantitative mixing apparatus according to claim 1, wherein: a fourth chute which is positioned at the upper side of the sixth cavity and is communicated with the sixth cavity through a downward opening is fixedly arranged in the working box, the fourth chute is arranged in bilateral symmetry, an electromagnet is fixedly arranged on the left cavity wall of the fourth chute, a second slider which is positioned at the right side of the electromagnet is arranged in the fourth chute in a sliding manner, the right end surface of the electromagnet is connected with the left end surface of the second slider through a third extension spring, a seventh rotating shaft which is positioned in the sixth cavity is rotatably arranged on the lower end surface of the second slider, a second gear is fixedly arranged on the seventh rotating shaft, an eighth rotating shaft which is positioned at the left side of the seventh rotating shaft is rotatably arranged on the inner wall of the upper side of the sixth cavity, the eighth rotating shaft is in transmission connection with the seventh rotating shaft through a fifth belt pulley, the fifth belt pulley is positioned on the upper side of the second gear, and a second winding wheel which is positioned at the lower side of the, the second winding wheel is connected with the left end face of the second sealing plate through a third pull rope, and a third gear located on the right side of the second gear is fixedly arranged on the motor shaft.