3D printing device for aluminum-based composite material

Abstract

The utility model relates to the technical field of 3D printing, in particular to a 3D printing device for an aluminum-based composite material. The device comprises a first feeding assembly, a second feeding assembly, a first heating component, a second heating component, a premixing assembly and a 3D printing nozzle. The first feeding assembly and the second feeding assembly are connected with the 3D printing nozzle through the premixing assembly. The first feeding assembly comprises a first storage tank used for storing powder metal, and the first heating component is arranged on the first storage tank and used for heating the first storage tank. The second feeding assembly comprises a second storage tank used for storing liquid metal, and the second heating component is arranged on the second storage tank and used for heating the second storage tank. The feeding device not only solves the problem that powder metal is easily affected with damp and adhered to the inner wall of the storage tank to cause blockage of a conveying pipeline, but also can improve the feeding effect, and is convenient for feeding and spraying.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D printing technical field, concretely relates to a 3D printing device for aluminium matrix composite. BACKGROUND

[0002] 3D printing technology is also called additive manufacturing technology, which is a kind of technology for manufacturing solid parts according to three-dimensional CAD data through layer-by-layer material accumulation method. The existing 3D printing device for aluminium matrix composite is usually used to store liquid metal and powder metal separately in a storage tank, and then input the liquid metal and powder metal into the 3D printing nozzle for spraying to complete the 3D printing of aluminium matrix composite. However, the 3D printing device has obvious deficiencies in powder metal storage: there is no effective heating measure in the storage tank, and the powder metal is easy to be damp and adhere to the inner wall of the storage tank, which not only causes the blockage of the conveying pipeline and hinders the smooth output of the powder metal, but also further affects the normal operation of the whole device.

[0003] In summary, it is necessary to provide a 3D printing device for aluminium matrix composite to solve the problem of powder metal being easy to be damp and adhere to the inner wall of the storage tank, which causes the blockage of the conveying pipeline. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a 3D printing device for aluminium matrix composite, and the specific technical scheme is as follows:

[0005] The utility model provides a 3D printing device for aluminium matrix composite, which comprises a first feeding assembly, a second feeding assembly, a first heating component, a second heating component, a premixing assembly and a 3D printing nozzle, wherein the first feeding assembly and the second feeding assembly are connected with the 3D printing nozzle through the premixing assembly; the first feeding assembly comprises a first storage tank for storing powder metal, and the first heating component is arranged on the first storage tank to heat the first storage tank; the second feeding assembly comprises a second storage tank for storing liquid metal, and the second heating component is arranged on the second storage tank to heat the second storage tank.

[0006] Optionally, a first cavity is formed in the wall of the first storage tank, and the first heating component is communicated with the first cavity through a first heat pipe; the number of the first heat pipes is at least two.

[0007] A second cavity is formed in the wall of the second storage tank, and the second heating component is communicated with the second cavity through a second heat pipe; the number of the second heat pipes is at least two.

[0008] Optionally, a first tank cover is arranged on the top of the first storage tank and can be opened and closed; the first feeding assembly further comprises a first feeding driving member; the first feeding driving member comprises a feeding driving part, a rotating rod and a spiral blade; the feeding driving part is arranged on the first tank cover and its output end penetrates the first tank cover and is connected with the rotating rod arranged in the first storage tank; the spiral blade is arranged in the first storage tank and is connected with the rotating rod;

[0009] A second tank cover is arranged on the top of the second storage tank and can be opened and closed; the second feeding assembly further comprises a second feeding driving member; the second feeding driving member comprises a booster pump and a booster pipe; the booster pump is arranged on the second tank cover and its outlet is connected with one end of the booster pipe; the other end of the booster pipe penetrates the second tank cover and is arranged in the second storage tank.

[0010] Optionally, a plurality of first arc-shaped plates are arranged on the first tank cover in a circumferential direction and are spaced apart; each of the first arc-shaped plates extends into the first storage tank and is arranged in slidable fit with the inner wall of the first storage tank;

[0011] A plurality of second arc-shaped plates are arranged on the second tank cover in a circumferential direction and are spaced apart; each of the second arc-shaped plates extends into the second storage tank and is arranged in slidable fit with the inner wall of the second storage tank.

[0012] Optionally, the first feeding assembly further comprises a first soft material guide pipe; one end of the first soft material guide pipe is in communication with the bottom of the first storage tank and the other end is connected with the 3D printing nozzle through the premixing assembly; a first valve is arranged on the first soft material guide pipe;

[0013] The second feeding assembly further comprises a second soft material guide pipe; one end of the second soft material guide pipe is in communication with the bottom of the second storage tank and the other end is connected with the 3D printing nozzle through the premixing assembly; a second valve is arranged on the second soft material guide pipe;

[0014] The inner wall surface of the bottom of the first storage tank is a reverse conical wall surface; the inner wall surface of the bottom of the second storage tank is a reverse conical wall surface.

[0015] Optionally, the premixing assembly comprises a premixing chamber and a communication pipe; one side of the premixing chamber is connected with the 3D printing nozzle through the communication pipe and the other side is in communication with the first soft material guide pipe and the second soft material guide pipe respectively.

[0016] Optionally, the 3D printing device further comprises a lifting assembly; the lifting assembly comprises a lifting drive, a screw rod, a threaded sleeve, a first connecting rod and a second connecting rod; the output end of the lifting drive is connected with the screw rod; the threaded sleeve is arranged on the screw rod and is threadedly connected with the screw rod; the first connecting rod is connected with the first storage tank on one side of the threaded sleeve; the second connecting rod is connected with the second storage tank on the other side of the threaded sleeve.

[0017] The lifting assembly further comprises a protective shell; the protective shell is coaxially arranged outside the screw rod; the lifting drive is arranged in the protective shell; a first guide sliding groove is arranged on one side of the protective shell to provide a guiding action for the lifting movement of the first connecting rod; a second guide sliding groove is arranged on the other side of the protective shell to provide a guiding action for the lifting movement of the second connecting rod.

[0018] Optionally, the lifting assembly further comprises a first guide vertical rod and a second guide vertical rod; the first guide vertical rod is arranged on the side of the first storage tank away from the protective shell; the first storage tank is slidably connected with the first guide vertical rod through a first sliding sleeve; the second guide vertical rod is arranged on the side of the second storage tank away from the protective shell; the second storage tank is slidably connected with the second guide vertical rod through a second sliding sleeve; a first limiting block is arranged on the top end of the first guide vertical rod; a second limiting block is arranged on the top end of the second guide vertical rod.

[0019] The first heating component is connected with the first storage tank through the first sliding sleeve; the second heating component is connected with the second storage tank through the second sliding sleeve.

[0020] Optionally, the 3D printing device further comprises a first float assembly and a second float assembly; the first float assembly comprises a first movable rod and a first floating plate; a first through hole with a diameter larger than that of the first movable rod is arranged on the first tank cover; one end of the first movable rod is arranged in the first storage tank through the first through hole and is connected with the first floating plate, and the other end is arranged outside the first storage tank and is connected with a first anti-disengagement block;

[0021] The second float assembly comprises a second movable rod and a second floating plate; a second through hole with a diameter larger than that of the second movable rod is arranged on the second tank cover; one end of the second movable rod is arranged in the second storage tank through the second through hole and is connected with the second floating plate, and the other end is arranged outside the second storage tank and is connected with a second anti-disengagement block;

[0022] The first storage tank and the second storage tank are both transparent storage tanks.

[0023] The technical scheme of the 3D printing device for aluminum matrix composites has at least the following beneficial effects:

[0024] (1) The 3D printing device for aluminum matrix composites provided by the utility model, first heating component is used for heating the powder metal in the first storage tank, solves the problem that the powder metal is easy to be damp and adhere to the inner wall of the storage tank, causing the blockage of the conveying pipeline.

[0025] (2) The 3D printing device for aluminum matrix composites provided by the utility model, the air heated in the first heating component is conveyed into the first cavity through one of the first heat pipes, the air in the first cavity which is not heated is extruded into another first heat pipe and is conveyed into the first heating component and is heated by the first heating component; the first heating component can heat all the air in the first cavity, thereby completing the heating of the first storage tank and realizing the heating of the powder metal in the first storage tank.

[0026] (3) The 3D printing device for aluminum matrix composites provided by the utility model further comprises a first feeding driving member combined on the first storage tank, which can accelerate the feeding effect of the powder metal and can continuously provide the 3D printing nozzle with the feeding material.

[0027] (4) The 3D printing device for aluminum matrix composites provided by the utility model comprises a lifting assembly, which can adjust the first storage tank and the second storage tank to descend to a feeding position, thereby facilitating the feeding; the lifting assembly can also adjust the first storage tank and the second storage tank to ascend to a 3D printing material spraying position, thereby facilitating the material spraying.

[0028] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. BRIEF DESCRIPTION OF DRAWINGS

[0029] The drawings constituting a part of this application serve to provide further understanding of the present application, and the schematic embodiments of the present application and the description thereof serve to explain the present application, and do not constitute undue limitation on the present application. In the drawings:

[0030] Figure 1 is a structural schematic view of a 3D printing device for aluminum matrix composites in an embodiment;

[0031] Figure 2 is a structural schematic view of another view of a 3D printing device for aluminum matrix composites in an embodiment;

[0032] Figure 3 is a sectional view of a partial area of a 3D printing device for aluminum matrix composites in an embodiment;

[0033] Figure 4 is a structural schematic view of a combination of a first feeding assembly, a first heating component and a first guide vertical rod in an embodiment;

[0034] Figure 5 is a structural schematic view of a combination of a second feeding assembly, a second heating component and a second guide vertical rod in an embodiment;

[0035] wherein 1 is a bottom plate, 2 is a first feeding assembly, 2.1 is a first storage tank, 2.1.1 is a first cavity, 2.1.2 is a first tank cover, 2.1.3 is a first arc-shaped plate, 2.2 is a feeding driving member, 2.3 is a rotating rod, 2.4 is a helical blade, 2.5 is a first soft material guiding pipe, 3 is a second feeding assembly, 3.1 is a second storage tank, 3.1.1 is a second cavity, 3.1.2 is a second tank cover, 3.1.3 is a second arc-shaped plate, 3.2 is a booster pump, 3.3 is a booster pipe, 3.4 is a second soft material guiding pipe, 4 is a first heating component, 4.1 is a first heat-conducting pipe, 5 is a second heating component, 5.1 is a second heat-conducting pipe, 6 is a premixing assembly, 6.1 is a premixing chamber, 6.2 is a communication pipe, 7 is a 3D printing nozzle, 8 is a lifting assembly, 8.1 is a lifting driving member, 8.2 is a screw rod, 8.3 is a threaded sleeve, 8.4 is a protective shell, 8.5 is a first guide vertical rod, and 8.6 is a second guide vertical rod. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0037] Embodiment:

[0038] Referring to Figures 1-5 A 3D printing device for aluminum-based composite material comprises a base plate 1, a first feeding assembly 2, a second feeding assembly 3, a first heating component 4 (specifically an electric heat generator), a second heating component 5 (specifically an electric heat generator), a premixing assembly 6 and a 3D printing nozzle 7 arranged on the base plate 1; the first feeding assembly 2 and the second feeding assembly 3 are connected with the 3D printing nozzle 7 through the premixing assembly 6; the premixing assembly 6 is used to mix the powder metal and the liquid metal uniformly and then spray them out through the 3D printing nozzle 7, thereby improving the 3D printing quality; the first feeding assembly 2 comprises a first storage tank 2.1 for storing the powder metal, and the first heating component 4 is arranged on the first storage tank 2.1 and used to heat the first storage tank 2.1; the first heating component 4 is used to heat the powder metal in the first storage tank 2.1, thereby solving the problem that the powder metal is prone to being damp and adhering to the inner wall of the storage tank, which causes the blockage of the conveying pipeline; the second feeding assembly 3 comprises a second storage tank 3.1 for storing the liquid metal, and the second heating component 5 is arranged on the second storage tank 3.1 and used to heat the second storage tank 3.1; the second heating component 5 is used to heat the liquid metal in the second storage tank 3.1, thereby improving the flowability of the liquid metal and improving the feeding effect.

[0039] A first cavity 2.1.1 is formed in the wall of the first storage tank 2.1, and the first heating component 4 is in communication with the first cavity 2.1.1 through a first heat pipe 4.1; the number of the first heat pipes 4.1 is two; the air heated in the first heating component 4 is conveyed into the first cavity 2.1.1 through one of the first heat pipes 4.1, and the air in the first cavity 2.1.1 that is not heated is extruded into the other first heat pipe 4.1 and conveyed into the first heating component 4 to be heated; the cycle is repeated, and all the air in the first cavity 2.1.1 can be heated by the first heating component 4, thereby completing the heating of the first storage tank 2.1 and realizing the heating of the powder metal in the first storage tank 2.1.

[0040] A second cavity 3.1.1 is formed in the wall of the second storage tank 3.1, and the second heating component 5 is in communication with the second cavity 3.1.1 through a second heat pipe 5.1; the number of the second heat pipes 5.1 is two; the air heated in the second heating component 5 is conveyed into the second cavity 3.1.1 through one of the second heat pipes 5.1, and the air in the second cavity 3.1.1 that is not heated is extruded into the other second heat pipe 5.1 and conveyed into the second heating component 5 to be heated; the cycle is repeated, and all the air in the second cavity 3.1.1 can be heated by the second heating component 5, thereby completing the heating of the second storage tank 3.1 and realizing the heating of the liquid metal in the second storage tank 3.1.

[0041] A first tank cover 2.1.2 is arranged on the top of the first storage tank 2.1; the first feeding assembly 2 further comprises a first feeding driving member; the first feeding driving member comprises a feeding driving element 2.2 (specifically, a motor), a rotating rod 2.3 and a spiral blade 2.4; the feeding driving element 2.2 is arranged on the first tank cover 2.1.2, and the output end of the feeding driving element 2.2 penetrates through the first tank cover 2.1.2 and is connected with the rotating rod 2.3 arranged in the first storage tank 2.1; the spiral blade 2.4 is arranged in the first storage tank 2.1 and is connected with the rotating rod 2.3; the first feeding driving member is combined on the first storage tank 2.1, which can accelerate the feeding effect of the powder metal and ensure that the 3D printing nozzle 7 is continuously fed.

[0042] A second tank cover 3.1.2 is arranged on the top of the second storage tank 3.1; the second feeding assembly 3 further comprises a second feeding driving member; the second feeding driving member comprises a booster pump 3.2 and a booster pipe 3.3; the booster pump 3.2 is arranged on the second tank cover 3.1.2, and the outlet of the booster pump 3.2 is connected with one end of the booster pipe 3.3; the other end of the booster pipe 3.3 penetrates through the second tank cover 3.1.2 and is arranged in the second storage tank 3.1; the second feeding driving member is combined on the second storage tank 3.1, which can accelerate the feeding effect of the liquid metal and ensure that the 3D printing nozzle 7 is continuously fed.

[0043] A plurality of first arc-shaped plates 2.1.3 (such as two first arc-shaped plates 2.1.3) are arranged on the first tank cover 2.1.2 in a ring direction and at intervals; each first arc-shaped plate 2.1.3 extends into the first storage tank 2.1 and is arranged in slidable fit with the inner wall of the first storage tank 2.1, which can prevent the first tank cover 2.1.2 from separating from the first storage tank 2.1 and facilitate feeding between adjacent two first arc-shaped plates 2.1.3.

[0044] A plurality of second arc-shaped plates 3.1.3 (such as two second arc-shaped plates 3.1.3) are arranged on the second tank cover 3.1.2 in a ring direction and at intervals; each second arc-shaped plate 3.1.3 extends into the second storage tank 3.1 and is arranged in slidable fit with the inner wall of the second storage tank 3.1, which can prevent the second tank cover 3.1.2 from separating from the second storage tank 3.1 and facilitate feeding between adjacent two second arc-shaped plates 3.1.3.

[0045] The first feeding assembly 2 further comprises a first soft material guide pipe (such as a plastic pipe) 2.5; one end of the first soft material guide pipe 2.5 is in communication with the bottom of the first storage tank 2.1, and the other end is connected with the 3D printing nozzle 7 through the premixing assembly 6; a first valve is arranged on the first soft material guide pipe 2.5;

[0046] The second feeding assembly 3 further comprises a second soft material guide pipe (such as a plastic pipe) 3.4; one end of the second soft material guide pipe 3.4 is in communication with the bottom of the second storage tank 3.1, and the other end is connected with the 3D printing nozzle 7 through the premixing assembly 6; a second valve is arranged on the second soft material guide pipe 3.4;

[0047] The inner wall surface of the bottom of the first storage tank 2.1 is a reverse tapered wall surface, facilitating feeding into the first soft material guide pipe 2.5; the inner wall surface of the bottom of the second storage tank 3.1 is a reverse tapered wall surface, facilitating feeding into the second soft material guide pipe 3.4.

[0048] The premixing assembly 6 comprises a premixing chamber 6.1 and a communication pipe 6.2; one side of the premixing chamber 6.1 is connected with the 3D printing nozzle 7 through the communication pipe 6.2, and the other side is in communication with the first soft material guide pipe 2.5 and the second soft material guide pipe 3.4, respectively.

[0049] Referring to Figures 1-3 , the 3D printing device further comprises a lifting assembly 8 arranged on the bottom plate 1; the lifting assembly 8 comprises a lifting drive member 8.1 (specifically a motor), a screw rod 8.2, a threaded sleeve 8.3, a first connecting rod and a second connecting rod; the output end of the lifting drive member 8.1 is connected with the screw rod 8.2; the threaded sleeve 8.3 is arranged on the screw rod 8.2 and is threadedly adapted; one side of the threaded sleeve 8.3 is connected with the first storage tank 2.1 through the first connecting rod, and the other side of the threaded sleeve 8.3 is connected with the second storage tank 3.1 through the second connecting rod;

[0050] The lifting assembly 8 further comprises a protective shell 8.4; the protective shell 8.4 is coaxially arranged on the outside of the screw rod 8.2; the lifting drive member 8.1 is arranged in the protective shell 8.4; a first guide sliding groove for providing a guiding action for the lifting movement of the first connecting rod is arranged on one side of the protective shell 8.4, and a second guide sliding groove for providing a guiding action for the lifting movement of the second connecting rod is arranged on the other side of the protective shell 8.4.

[0051] The lifting assembly 8 further comprises a first guide vertical rod 8.5 and a second guide vertical rod 8.6; the first guide vertical rod 8.5 is arranged on the side of the first storage tank 2.1 away from the protective shell 8.4, and the number thereof is two; the first storage tank 2.1 is slidably connected with the first guide vertical rod 8.5 through a first sliding sleeve; the second guide vertical rod 8.6 is arranged on the side of the second storage tank 3.1 away from the protective shell 8.4, and the number thereof is two; the second storage tank 3.1 is slidably connected with the second guide vertical rod 8.6 through a second sliding sleeve; a first limiting block is arranged on the top end of the first guide vertical rod 8.5 to prevent the first sliding sleeve from sliding out of the first guide vertical rod 8.5; a second limiting block is arranged on the top end of the second guide vertical rod 8.6 to prevent the second sliding sleeve from sliding out of the second guide vertical rod 8.6; the combination of the first guide vertical rod 8.5 and the second guide vertical rod 8.6 facilitates the lifting driving element 8.1 to provide a guiding action when driving the first storage tank 2.1 and the second storage tank 3.1 to lift.

[0052] The first heating component 4 is connected with the first storage tank 2.1 through the first sliding sleeve; the second heating component 5 is connected with the second storage tank 3.1 through the second sliding sleeve.

[0053] Referring to Figures 4-5 , the 3D printing device further comprises a first float assembly and a second float assembly; the first float assembly comprises a first movable rod and a first floating plate; a first through hole with a diameter larger than that of the first movable rod is arranged on the first tank cover 2.1.2; one end of the first movable rod is arranged in the first storage tank 2.1 through the first through hole and connected with the first floating plate, and the other end is arranged outside the first storage tank 2.1 and connected with a first anti-falling block to prevent the first movable rod from sinking into the first storage tank 2.1;

[0054] The second float assembly comprises a second movable rod and a second floating plate; a second through hole with a diameter larger than that of the second movable rod is arranged on the second tank cover 3.1.2; one end of the second movable rod is arranged in the second storage tank 3.1 through the second through hole and connected with the second floating plate, and the other end is arranged outside the second storage tank 3.1 and connected with a second anti-falling block to prevent the second movable rod from sinking into the second storage tank 3.1;

[0055] The first storage tank 2.1 and the second storage tank 3.1 are both transparent storage tanks.

[0056] An application method of the 3D printing device, comprising:

[0057] Step S1, feeding and heating

[0058] The screw rod 8.2 is driven by the lifting drive 8.1 to drive the threaded sleeve 8.3 to drop from the 3D printing material spraying position to the feeding position, wherein the threaded sleeve 8.3 is connected with the first connecting rod and the second connecting rod respectively to realize the dropping of the first storage tank 2.1 and the second storage tank 3.1 to the feeding position; the first tank cover 2.1.2 is lifted to add the powder metal into the first storage tank 2.1, and after the first storage tank 2.1 is filled, the first tank cover 2.1.2 is closed; the second tank cover 3.1.2 is lifted to add the liquid metal into the second storage tank 3.1, and after the second storage tank 3.1 is filled, the second tank cover 3.1.2 is closed;

[0059] Before feeding, the first heating component 4 and the second heating component 5 are used to heat the first cavity 2.1.1 and the second cavity 3.1.1 respectively to realize the preheating function; after feeding, the first heating component 4 continuously heats the first cavity 2.1.1 to heat the powder metal in the first storage tank 2.1; the second heating component 5 continuously heats the second cavity 3.1.1 to heat the liquid metal in the second storage tank 3.1;

[0060] Step S2, reset

[0061] The screw rod 8.2 is driven by the lifting drive 8.1 to drive the threaded sleeve 8.3 to rise from the feeding position to the 3D printing material spraying position, wherein the threaded sleeve 8.3 is connected with the first connecting rod and the second connecting rod respectively to realize the rising of the first storage tank 2.1 and the second storage tank 3.1 to the 3D printing material spraying position;

[0062] Step S3, complete 3D printing material spraying

[0063] The first valve on the first soft material guide pipe 2.5 is opened, and the feed drive 2.2 is used to drive the rotating rod 2.3 to drive the spiral blade 2.4 to rotate and push the powder metal to flow into the premixing assembly 6 through the first soft material guide pipe 2.5;

[0064] The second valve on the second soft material guide pipe 3.4 is opened, and the booster pump 3.2 is used to pressurize the second storage tank 3.1 through the booster pipe 3.3 to force the liquid metal to flow into the premixing assembly 6 through the second soft material guide pipe 3.4;

[0065] After the powder metal and the liquid metal are mixed in the premixing assembly 6, they are sprayed out through the 3D printing nozzle 7 to complete the 3D printing material spraying;

[0066] In the 3D printing material spraying process, it is directly judged whether the material needs to be added by observing the height position of the first and second float assemblies or directly observing the remaining powder metal in the transparent first storage tank 2.1 and the remaining liquid metal in the second storage tank 3.1; if the material needs to be added, steps S1-S2 are repeated.

[0067] The preferred embodiments of the present application are described above, but the present application is not limited to the above. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A 3D printing device for aluminum matrix composites, characterized by, The device comprises a first feeding assembly (2), a second feeding assembly (3), a first heating component (4), a second heating component (5), a premixing assembly (6) and a 3D printing nozzle (7); the first feeding assembly (2) and the second feeding assembly (3) are connected with the 3D printing nozzle (7) through the premixing assembly (6); the first feeding assembly (2) comprises a first storage tank (2.1) for storing powder metal, and the first heating component (4) is arranged on the first storage tank (2.1) and used for heating the first storage tank (2.1); the second feeding assembly (3) comprises a second storage tank (3.1) for storing liquid metal, and the second heating component (5) is arranged on the second storage tank (3.1) and used for heating the second storage tank (3.1).

2. The apparatus for 3D printing of aluminum matrix composites according to claim 1, characterized in that, A first cavity (2.1.1) is formed in the wall of the first storage tank (2.1), and the first heating component (4) is in communication with the first cavity (2.1.1) through a first heat-conducting pipe (4.1); the number of the first heat-conducting pipes (4.1) is at least two. A second cavity (3.1.1) is formed in the wall of the second storage tank (3.1), and the second heating component (5) is in communication with the second cavity (3.1.1) through a second heat-conducting pipe (5.1); the number of the second heat-conducting pipes (5.1) is at least two.

3. The device for 3D printing of aluminum matrix composites according to claim 2, wherein a first tank cover (2.1.2) is arranged on the top of the first storage tank (2.1) and can be opened and closed; the first feeding assembly (2) further comprises a first feeding driving component; the first feeding driving component comprises a feeding driving member (2.2), a rotating rod (2.3) and a helical blade (2.4); the feeding driving member (2.2) is arranged on the first tank cover (2.1.2), and the output end of the feeding driving member (2.2) penetrates through the first tank cover (2.1.2) and is connected with the rotating rod (2.3) arranged in the first storage tank (2.1); the helical blade (2.4) is arranged in the first storage tank (2.1) and is connected with the rotating rod (2.3); a second tank cover (3.1.2) is arranged on the top of the second storage tank (3.1) and can be opened and closed; the second feeding assembly (3) further comprises a second feeding driving component; the second feeding driving component comprises a booster pump (3.2) and a booster pipe (3.3); the booster pump (3.2) is arranged on the second tank cover (3.1.2), and the outlet of the booster pump (3.2) is connected with one end of the booster pipe (3.3); the other end of the booster pipe (3.3) penetrates through the second tank cover (3.1.2) and is arranged in the second storage tank (3.1). A plurality of first arc-shaped plates (2.1.3) are arranged on the first tank cover (2.1.2) in a ring shape and at intervals; each first arc-shaped plate (2.1.3) extends into the first storage tank (2.1) and is arranged in slidable contact with the inner wall of the first storage tank (2.1); ​ ​ 4. The apparatus for 3D printing of aluminum matrix composites according to claim 3, characterized in that, ​ A plurality of second arc-shaped plates (3.1.3) are arranged on the second tank cover (3.1.2) in a ring direction and are spaced apart from each other, each of the second arc-shaped plates (3.1.3) extends into the second storage tank (3.1) and is slidably attached to the inner wall of the second storage tank (3.1).

5. The apparatus for 3D printing of aluminum matrix composites according to claim 4, characterized in that, The first feeding assembly (2) further comprises a first soft material guide pipe (2.5), one end of the first soft material guide pipe (2.5) is in communication with the bottom of the first storage tank (2.1), and the other end is connected with the 3D printing nozzle (7) through the premixing assembly (6), and a first valve is arranged on the first soft material guide pipe (2.5); The second feeding assembly (3) further comprises a second soft material guide pipe (3.4), one end of the second soft material guide pipe (3.4) is in communication with the bottom of the second storage tank (3.1), and the other end is connected with the 3D printing nozzle (7) through the premixing assembly (6), and a second valve is arranged on the second soft material guide pipe (3.4); The inner wall surface of the bottom of the first storage tank (2.1) is a reverse tapered wall surface, and the inner wall surface of the bottom of the second storage tank (3.1) is a reverse tapered wall surface.

6. The apparatus for 3D printing of aluminum matrix composites according to claim 5, wherein The premixing assembly (6) comprises a premixing chamber (6.1) and a communication pipe (6.2), one side of the premixing chamber (6.1) is connected with the 3D printing nozzle (7) through the communication pipe (6.2), and the other side is in communication with the first soft material guide pipe (2.5) and the second soft material guide pipe (3.4) respectively.

7. The apparatus for 3D printing of aluminum matrix composites according to claim 6, characterized in that, The lifting assembly (8) further comprises a protective shell (8.4), the protective shell (8.4) is coaxially arranged on the outside of the screw rod (8.2), and the lifting drive (8.1) is arranged in the protective shell (8.4); a first guide sliding groove for providing a guiding action for the lifting movement of the first connecting rod is arranged on one side of the protective shell (8.4), and a second guide sliding groove for providing a guiding action for the lifting movement of the second connecting rod is arranged on the other side of the protective shell (8.4). The lifting assembly (8) further comprises a protective shell (8.4), the protective shell (8.4) is coaxially arranged on the outside of the screw rod (8.2), and the lifting drive (8.1) is arranged in the protective shell (8.4); a first guide sliding groove for providing a guiding action for the lifting movement of the first connecting rod is arranged on one side of the protective shell (8.4), and a second guide sliding groove for providing a guiding action for the lifting movement of the second connecting rod is arranged on the other side of the protective shell (8.4).

8. The apparatus for 3D printing of aluminum matrix composites according to claim 7, characterized in that, The lifting assembly (8) further comprises a first guide vertical rod (8.5) and a second guide vertical rod (8.6); the first guide vertical rod (8.5) is arranged on the side of the first storage tank (2.1) away from the protective shell (8.4), and the first storage tank (2.1) is slidably connected with the first guide vertical rod (8.5) through a first sliding sleeve; the second guide vertical rod (8.6) is arranged on the side of the second storage tank (3.1) away from the protective shell (8.4), and the second storage tank (3.1) is slidably connected with the second guide vertical rod (8.6) through a second sliding sleeve; a first limiting block is arranged on the top end of the first guide vertical rod (8.5); a second limiting block is arranged on the top end of the second guide vertical rod (8.6). The first heating component (4) is connected with the first storage tank (2.1) through the first sliding sleeve; the second heating component (5) is connected with the second storage tank (3.1) through the second sliding sleeve.

9. The apparatus for 3D printing of aluminum matrix composites according to claim 8, characterized in that, The first float assembly comprises a first movable rod and a first floating plate; a first through hole with a diameter larger than that of the first movable rod is arranged on the first tank cover (2.1.2), one end of the first movable rod is arranged in the first storage tank (2.1) through the first through hole and connected with the first floating plate, and the other end is arranged outside the first storage tank (2.1) and connected with a first anti-disengagement block. The second float assembly comprises a second movable rod and a second floating plate; a second through hole with a diameter larger than that of the second movable rod is arranged on the second tank cover (3.1.2), one end of the second movable rod is arranged in the second storage tank (3.1) through the second through hole and connected with the second floating plate, and the other end is arranged outside the second storage tank (3.1) and connected with a second anti-disengagement block.

10. The apparatus for 3D printing of aluminum matrix composites according to claim 9, wherein The first storage tank (2.1) and the second storage tank (3.1) are both transparent storage tanks.

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