Composite material 3D printing device

Abstract

The composite material 3D printing device comprises a printing driving mechanism, a rotating motor, an electric cylinder, a rotating shaft, a printing nozzle and a printing platform, the bottom end of the rotating shaft is fixed to the rotating end of the rotating motor, the electric cylinder is fixed to the top end of the rotating shaft, and a through hole is formed in the center of the printing platform; the rotating shaft can penetrate out of the through hole and freely rotate in the through hole, the rotating shaft is vertical to the ground, the moving end of the electric cylinder is connected with the printing driving mechanism, the printing driving mechanism is provided with two moving ends which are arranged in a back-to-back mode, printing materials are arranged in the printing nozzles, the printing materials are divided into two types, and one printing nozzle corresponds to one type of printing material. A discharging port of the printing nozzle is right opposite to the top face of the printing platform, and the printing nozzle can extrude printing materials in the printing nozzle out of the discharging port. The 3D printer is high in printing efficiency and good in printing effect.

Description

Technical Field

[0001] The present invention relates to a printing device, and particularly to a composite material 3D printing device. Background Art

[0002] Currently, in the field of 3D printing, especially in the 3D printing field related to biological material printing, 3D printing is usually carried out using a single printing nozzle. Since 3D printing involving biological materials usually requires multiple materials to be stacked, the 3D printer with a single printing nozzle needs to continuously switch the materials in the printing nozzle during the printing process. Each switch requires cleaning the printing nozzle, resulting in low printing efficiency. In addition, since the shelf life of biological materials is relatively short, each replacement of materials requires time-consuming cleaning, which not only wastes time but also is not conducive to the preservation of biological materials, resulting in poor printing effects. Summary of the Invention

[0003] In order to overcome the above defects, the present invention provides a composite material 3D printing device, which has the advantages of high printing efficiency and good printing effect.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a composite material 3D printing device, comprising: a printing driving mechanism, a rotating motor, an electric cylinder, a rotating shaft, a printing nozzle and a printing platform. The bottom end of the rotating shaft is fixed to the rotating end of the rotating motor, the electric cylinder is fixed to the top end of the rotating shaft, a through hole is provided at the center of the printing platform, the rotating shaft can pass through the through hole and rotate freely in the through hole, the rotating shaft is perpendicular to the ground, the printing driving mechanism is slidably connected to the rotating shaft above the printing platform, the moving end of the electric cylinder is connected to the printing driving mechanism, the printing driving mechanism is provided with two moving ends arranged back to back, the printing nozzles are respectively fixed to the two moving ends of the printing driving mechanism, printing materials are arranged inside the printing nozzles, the printing materials are divided into two types, one printing nozzle corresponds to one printing material, the discharge port of the printing nozzle faces the top surface of the printing platform, the printing driving mechanism and the printing nozzles can rotate under the drive of the rotating motor, the printing driving mechanism and the printing nozzles can approach or move away from the printing platform under the drive of the electric cylinder, the printing nozzles can move in a direction parallel to the ground under the drive of the printing driving mechanism, and the printing nozzles can extrude the internal printing materials out of the discharge ports.

[0005] Optionally, the printing driving mechanism includes a frame, a sliding sleeve and two electric screw rods. The sliding sleeve is arranged in the middle of the frame, the sliding sleeve is sleeved on the rotating shaft and slidably connected to the rotating shaft, the frame is fixed to the moving end of the electric cylinder, the two electric screw rods are fixed to both sides of the frame back to back, the two electric screw rods are parallel to the ground, the printing nozzles are fixed to the moving ends of the electric screw rods, the moving ends of the electric screw rods are the moving ends of the printing driving mechanism, and the printing nozzles can move in a direction parallel to the ground under the drive of the electric screw rods.

[0006] Optionally, a Hall sensor is provided inside the electric lead screw.

[0007] Optionally, it further includes a moving mechanism. The rotating motor is fixed to the top of the moving mechanism, and the printing platform is fixed to the top of the transport vehicle through a fixed bracket.

[0008] Optionally, the moving mechanism is a transport vehicle, which includes four wheels driven by power motors and a lidar for navigation.

[0009] Optionally, the printing nozzle is detachably fixed to the mobile end of the electric lead screw through a nozzle fixing sleeve.

[0010] Optionally, the two printing nozzles are a first printing nozzle and a second printing nozzle respectively. The printing materials include a scaffold material and a cell material. The first printing nozzle is internally provided with a first extrusion mechanism and a first accommodation cavity communicating with the discharge port. The scaffold material is arranged in the first accommodation cavity, and the scaffold material can flow out of the discharge port of the first printing nozzle under the extrusion of the first extrusion mechanism. The second printing nozzle is internally provided with a second extrusion mechanism and a second accommodation cavity communicating with the discharge port. The cell material is arranged in the second accommodation cavity, and the cell material can flow out of the discharge port of the second printing nozzle under the extrusion of the second extrusion mechanism.

[0011] Optionally, the first extrusion mechanism includes a first cylinder and a first pressing block. The first pressing block can extrude the scaffold material under the drive of the first cylinder. The second extrusion mechanism includes a second cylinder and a second pressing block. The second pressing block can extrude the cell material under the drive of the second cylinder.

[0012] Optionally, the printing platform is a circular platform, and the top surface of the printing platform is parallel to the ground.

[0013] Optionally, the printing platform is internally provided with heating wires, and the heating wires can heat the printing platform.

[0014] The beneficial technical effects of the present invention are as follows: The composite material 3D printing device includes a printing drive mechanism, a rotating motor, an electric cylinder, a rotating shaft, a printing nozzle, and a printing platform. When in use, first place the printing material inside the printing nozzle. Then, the electric cylinder drives the printing nozzle to approach the printing platform until the printing nozzle moves to a preset height. The rotating motor drives the printing nozzle to rotate to a preset angle. The printing drive mechanism drives the printing nozzle to move to a preset position. Then, the printing nozzle extrudes the printing material inside to achieve the printing function. The electric cylinder, rotating motor, and printing drive mechanism cooperate to drive the printing nozzle to move freely at the preset printing position. When one printing nozzle finishes printing, the rotating motor only needs to rotate 180 degrees to switch to another printing nozzle, thereby realizing the rapid switching of different printing materials. Since the steps of replacing the printing material and cleaning the printing nozzle are omitted, the printing efficiency is high. In addition, due to the high printing efficiency, when printing some materials with a short shelf life, the printing material can be prevented from deteriorating, so the printing effect is good. It has the advantages of high printing efficiency and good printing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a three-dimensional view of the whole machine of the present invention;

[0016] Figure 2 is a front view of the whole machine of the present invention;

[0017] Figure 3 is a side view of the whole machine of the present invention;

[0018] Wherein:

[0019] 1. Printing drive mechanism; 2. Rotating motor; 3. Electric cylinder; 4. Rotating shaft; 5. Printing platform; 6. Handling vehicle; 7. First printing nozzle; 8. Second printing nozzle. DETAILED DESCRIPTION OF THE INVENTION

[0020] In order to be able to more clearly understand the technical means of the present invention and implement it in accordance with the content of the specification, the following combines the drawings and embodiments to further describe in detail the specific implementation manners of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0021] This specific embodiment details the composite material 3D printing device described in the present application, as Figures 1 - 3As shown in the figure, the composite material 3D printing device includes: a printing drive mechanism 1, a rotary motor 2, an electric cylinder 3, a rotary shaft 4, a printing nozzle, and a printing platform 5. The bottom end of the rotary shaft 4 is fixed to the rotary end of the rotary motor 2. The electric cylinder 3 is fixed to the top end of the rotary shaft 4. A through hole is provided at the center of the printing platform 5. The rotary shaft 4 can pass through the through hole and rotate freely within the through hole. The rotary shaft 4 is perpendicular to the ground. The printing drive mechanism 1 is slidably connected to the rotary shaft 4 above the printing platform 5. The moving end of the electric cylinder 3 is connected to the printing drive mechanism 1. The printing drive mechanism 1 is provided with two moving ends arranged back to back. The printing nozzles are respectively fixed to the two moving ends of the printing drive mechanism 1. The printing material is provided inside the printing nozzles. The printing material is divided into two types. One printing nozzle corresponds to one type of printing material. The discharge port of the printing nozzle faces the top surface of the printing platform 5. The printing drive mechanism 1 and the printing nozzles can rotate under the drive of the rotary motor 2. The printing drive mechanism 1 and the printing nozzles can move closer to or away from the printing platform 5 under the drive of the electric cylinder 3. The printing nozzles can move in a direction parallel to the ground under the drive of the printing drive mechanism 1. The printing nozzles can extrude the internal printing material out of the discharge port. During use, first set the printing material inside the printing nozzles, then the electric cylinder 3 drives the printing nozzles to approach the printing platform 5 until the printing nozzles move to a preset height. The rotary motor 2 drives the printing nozzles to rotate to a preset angle. The printing drive mechanism 1 drives the printing nozzles to move to a preset position. Then the printing nozzles extrude the internal printing material to achieve the printing function. The printing nozzles are driven by the electric cylinder 3, the rotary motor 2, and the printing drive mechanism 1 to move freely at the preset printing position. When one printing nozzle finishes printing, the rotary motor 2 only needs to rotate 180 degrees to switch to the other printing nozzle, thereby realizing the rapid switching of different printing materials. Since the steps of replacing the printing material and cleaning the printing nozzles are omitted, the printing efficiency is high. In addition, due to the high printing efficiency, when printing some materials with a short shelf life, the printing material can be prevented from deteriorating, so the printing effect is good. It has the advantages of high printing efficiency and good printing effect. The vertical direction in this embodiment is Figure 2 the up and down direction in

[0022] Optionally, in this embodiment, the printing drive mechanism 1 includes a frame, a sliding sleeve, and two electric lead screws. The sliding sleeve is arranged in the middle of the frame. The sliding sleeve is sleeved on the rotary shaft 4 and is slidably connected to the rotary shaft 4. The frame is fixed to the moving end of the electric cylinder 3. The two electric lead screws are fixed to both sides of the frame back to back. The two electric lead screws are parallel to the ground. The printing nozzles are fixed to the moving ends of the electric lead screws. The moving ends of the electric lead screws are the moving ends of the printing drive mechanism 1. The printing nozzles can move in a direction parallel to the ground under the drive of the electric lead screws.

[0023] Optionally, in this embodiment, a Hall sensor is provided inside the electric lead screw. Setting a Hall sensor inside the electric lead screw can improve the movement accuracy of the mobile end of the electric lead screw, thereby improving the printing accuracy.

[0024] Optionally, in this embodiment, a moving mechanism is further included. The rotating motor 2 is fixed to the top of the moving mechanism, and the printing platform 5 is fixed to the top of the carrier 6 through a fixing bracket. There are two advantages of setting the moving mechanism. First, the weight of the composite material 3D printing device is relatively heavy. Setting the moving mechanism can reduce the burden on the user when moving the composite material 3D printing device. Second, when it comes to 3D printing of some biological materials, due to the short shelf life of the printing materials, setting the moving mechanism can facilitate printing while moving. The composite material 3D printing device prints while moving when receiving a printing instruction, saving time. When moving to the designated position, the printing work is basically completed, saving the time wasted by the user walking back and forth, and ensuring that the printed finished product can reach the user in the shortest time.

[0025] Optionally, in this embodiment, the moving mechanism is a carrier 6. The carrier 6 includes four wheels driven by a power motor and a lidar for navigation.

[0026] Optionally, in this embodiment, the printing nozzle is detachably fixed to the mobile end of the electric lead screw through a nozzle fixing sleeve. Setting the printing nozzle to be detachable can facilitate the user to replace the printing nozzle.

[0027] Optionally, in this embodiment, the two printing nozzles are respectively a first printing nozzle 7 and a second printing nozzle 8. The printing materials include a scaffold material and a cell material. The first printing nozzle 7 is internally provided with a first extrusion mechanism and a first accommodating cavity communicating with the discharge port. The scaffold material is arranged in the first accommodating cavity, and the scaffold material can flow out of the discharge port of the first printing nozzle 7 under the extrusion of the first extrusion mechanism. The second printing nozzle 8 is internally provided with a second extrusion mechanism and a second accommodating cavity communicating with the discharge port. The cell material is arranged in the second accommodating cavity, and the cell material can flow out of the discharge port of the second printing nozzle 8 under the extrusion of the second extrusion mechanism. The scaffold material can be printed into a scaffold, and the cell material can grow on the printed scaffold, thereby realizing the printing of biological composite materials.

[0028] Optionally, in this embodiment, the first extrusion mechanism includes a first cylinder and a first pressing block. The first pressing block can extrude the scaffold material under the drive of the first cylinder. The second extrusion mechanism includes a second cylinder and a second pressing block. The second pressing block can extrude the cell material under the drive of the second cylinder.

[0029] Optionally, in this embodiment, the printing platform 5 is a circular platform, and the top surface of the printing platform 5 is parallel to the ground.

[0030] Optionally, in this embodiment, a heating wire is disposed inside the printing platform 5, and the heating wire can heat the printing platform 5. Heating the printing platform 5 by the heating wire can melt the side of the printed finished product in contact with the printing platform 5, so as to prevent the printed finished product from sticking to the printing platform 5 and facilitate the user to remove the printed finished product.

[0031] Using the composite material 3D printing device in this embodiment has the advantages of high printing efficiency and good printing effect.

Claims

1. A 3D printing device for composite materials, characterized in that, Including: A printing drive mechanism (1), a rotary motor (2), an electric cylinder (3), a rotary shaft (4), a printing nozzle, and a printing platform (5). The bottom end of the rotary shaft (4) is fixed to the rotary end of the rotary motor (2). The electric cylinder (3) is fixed to the top end of the rotary shaft (4). A through hole is provided at the center of the printing platform (5). The rotary shaft (4) can pass through the through hole and rotate freely within the through hole. The rotary shaft (4) is perpendicular to the ground. The printing drive mechanism (1) is slidably connected to the rotary shaft (4) above the printing platform (5). The moving end of the electric cylinder (3) is connected to the printing drive mechanism (1). The printing drive mechanism (1) is provided with two moving ends arranged back to back. The printing nozzles are respectively fixed to the two moving ends of the printing drive mechanism (1). Printing materials are provided inside the printing nozzles. The printing materials are divided into two types. One printing nozzle corresponds to one type of printing material. The discharge port of the printing nozzle faces the top surface of the printing platform (5). The printing drive mechanism (1) and the printing nozzles can rotate under the drive of the rotary motor (2). The printing drive mechanism (1) and the printing nozzles can move closer to or away from the printing platform (5) under the drive of the electric cylinder (3). The printing nozzles can move in a direction parallel to the ground under the drive of the printing drive mechanism (1). The printing nozzles can extrude the internal printing materials out of the discharge ports.

2. The composite material 3D printing device according to claim 1, characterized in that: The printing drive mechanism (1) includes a frame, a sliding sleeve, and two electric lead screws. The sliding sleeve is arranged in the middle of the frame. The sliding sleeve is sleeved on the rotary shaft (4) and is slidably connected to the rotary shaft (4). The frame is fixed to the moving end of the electric cylinder (3). The two electric lead screws are fixed to both sides of the frame back to back. The two electric lead screws are parallel to the ground. The printing nozzles are fixed to the moving ends of the electric lead screws. The moving ends of the electric lead screws are the moving ends of the printing drive mechanism (1). The printing nozzles can move in a direction parallel to the ground under the drive of the electric lead screws.

3. The composite material 3D printing device according to claim 2, wherein: A Hall sensor is provided inside the electric lead screw.

4. The composite material 3D printing device according to claim 1, characterized in that: It further includes a moving mechanism. The rotary motor (2) is fixed to the top of the moving mechanism. The printing platform (5) is fixed to the top of a transport vehicle (6) through a fixing bracket.

5. The composite material 3D printing device according to claim 4, characterized in that: The moving mechanism is a transport vehicle (6). The transport vehicle (6) includes four wheels driven by a power motor and a lidar for navigation.

6. The composite material 3D printing device according to claim 2, wherein: The printing nozzle is detachably fixed to the moving end of the electric lead screw through a nozzle fixing sleeve.

7. The composite material 3D printing device according to claim 6, wherein: The two printing nozzles are respectively a first printing nozzle (7) and a second printing nozzle (8). The printing materials include a scaffold material and a cell material. A first extrusion mechanism and a first accommodating cavity communicating with the discharge port are provided inside the first printing nozzle (7). The scaffold material is arranged in the first accommodating cavity. The scaffold material can flow out of the discharge port of the first printing nozzle (7) under the extrusion of the first extrusion mechanism. A second extrusion mechanism and a second accommodating cavity communicating with the discharge port are provided inside the second printing nozzle (8). The cell material is arranged in the second accommodating cavity. The cell material can flow out of the discharge port of the second printing nozzle (8) under the extrusion of the second extrusion mechanism.

8. The composite material 3D printing device according to claim 7, wherein: The first extrusion mechanism includes a first air cylinder and a first pressing block. The first pressing block can extrude the bracket material under the drive of the first air cylinder. The second extrusion mechanism includes a second air cylinder and a second pressing block. The second pressing block can extrude the cell material under the drive of the second air cylinder.

9. The composite material 3D printing device according to claim 5, wherein: The printing platform (5) is a circular platform, and the top surface of the printing platform (5) is parallel to the ground.

10. The composite material 3D printing device according to claim 9, characterized in that: The printing platform (5) is internally provided with heating wires, and the heating wires can heat the printing platform (5).

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