3D printing equipment applying FDM technology

Abstract

The utility model provides 3D printing equipment applying an FDM technology, and belongs to the technical field of 3D printing, the 3D printing equipment comprises a base, the upper surface of the base is fixedly connected with four supporting columns, the upper ends of the supporting columns are fixedly connected with a supporting top plate, two first reciprocating screw rods are rotatably connected between the inner side faces of the supporting top plate, and two second reciprocating screw rods are rotatably connected between the inner side faces of the two first reciprocating screw rods. Two first motors are fixedly connected to the outer side face of the supporting top plate, and the output ends of the first motors are fixedly connected to one ends of first reciprocating lead screws. The two second reciprocating lead screws are arranged on the inner side face of the base, the second reciprocating lead screws are in threaded connection with the cutting knife, after printing is finished, the rotary disc is lowered to the position below the cutting knife through the lifting column, and then the reciprocating lead screws can be controlled to rotate through the second motor; and then the cutting knife is controlled to cut and separate the bottom of the printed object, and meanwhile, the rotating disc can be cleaned.

Description

Technical Field

[0001] The utility model belongs to the technical field of 3D printing, and in particular relates to a 3D printing device using FDM technology. Background Art

[0002] FDM stands for frequency division multiplexing, a communications technology used to transmit multiple independent data streams on a single channel. It achieves multiplexing by dividing the spectrum into multiple frequency bands and allowing different data streams to be transmitted on different frequency bands.

[0003] Existing publication number CN105729800B discloses an FDM-based 3D printing device, including a printing platform; a lifting mechanism, which is operably positioned and connected to the printing platform through a first positioning and locking mechanism in a manner of lifting and lowering in a vertical direction; and a transfer mechanism, which is operably positioned and connected to the printing platform through a second positioning and locking mechanism in a manner of moving in a horizontal direction.

[0004] Existing 3D printing equipment using FDM technology still has the following shortcomings:

[0005] 1. After printing, the existing printing equipment can only rely on manual removal of the printed parts from the printing table, and the existing device cannot automatically clean the printing table, which will reduce the efficiency of the device.

[0006] 2. The existing device can only provide linear motion in the three directions of X, Y and Z axes, and cannot realize autonomous rotation of the turntable, so it cannot improve the printing efficiency during the 3D printing process. Utility Model Content

[0007] The purpose of the utility model is to solve the problem in the prior art that the printing table cannot be cleaned autonomously and the turntable cannot be rotated autonomously, and to propose a 3D printing device using FDM technology.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] A 3D printing device using FDM technology comprises: a base, wherein the upper surface of the base is fixedly connected to four support columns, the upper ends of the support columns are fixedly connected to a support top plate, two No. 1 reciprocating screws are rotatably connected between the inner side surfaces of the support top plate, two No. 1 motors are fixedly connected to the outer side surface of the support top plate, the output end of the No. 1 motor is fixedly connected to one end of the No. 1 reciprocating screw, a transmission box is threadedly connected to the two No. 1 reciprocating screws, the bottom surface of the transmission box is slidably connected to an injector, and the injector is electrically connected to the transmission box; a cutting assembly and a printing table assembly are provided on the base;

[0010] Preferably, an annular groove is provided in the center of the upper surface of the base, and the printing table assembly is arranged in the annular groove. The printing table assembly includes a supporting chassis, a lifting column and a rotating structure. The four lifting columns are fixedly connected to the inner bottom surface of the base, and the supporting chassis is fixedly connected to the upper ends of the lifting columns.

[0011] Preferably, the rotating structure includes a turntable and a No. 3 motor, the No. 3 motor is fixedly connected to the lower surface of the supporting chassis, and the turntable is rotatably connected to the upper surface of the supporting chassis via a rotating shaft;

[0012] Preferably, the cutting assembly includes a No. 2 reciprocating screw, a cutting blade and a No. 2 motor, wherein the two No. 2 reciprocating screws are rotatably connected between the inner side surfaces of the base, the No. 2 motor is fixedly connected to the outer side surface of the base, the output end of the No. 2 motor is fixedly connected to one end of the No. 2 reciprocating screw, and the cutting blade is threadedly connected to the No. 2 reciprocating screw;

[0013] Preferably, the length of the cutting knife is 10 cm longer than the diameter of the turntable, and the cutting knife is composed of a fixing rod at the lower end and a cutting head at the upper end;

[0014] Preferably, two slide grooves are provided on the upper surface of the base, the fixing rod is arranged in the slide grooves, and the second reciprocating screw rod is arranged directly below the slide grooves.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. The utility model sets two No. 2 reciprocating screws on the inner side of the base, and a cutting knife is threadedly connected to the No. 2 reciprocating screw. After printing is completed, the turntable is lowered to the bottom of the cutting knife by the lifting column, and the rotation of the reciprocating screw can be controlled by the No. 2 motor to control the cutting knife to cut and separate the bottom of the printed object, and at the same time, the turntable can be cleaned.

[0017] 2. The utility model provides the movement directions of the X and Y axes by arranging the printing structure above the device, and provides the movement direction of the Z axis by arranging the lifting column below the supporting chassis. At the same time, a turntable is connected to the top of the supporting chassis through a rotating shaft. The rotation of the turntable can be controlled by the No. 3 motor, providing a C axis rotating around the Z axis, thereby improving the working efficiency of the printing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view structural diagram of a 3D printing device using FDM technology proposed in the present invention;

[0019] Figure 2 This is a rear structural diagram of a 3D printing device using FDM technology proposed in the present invention;

[0020] Figure 3 This is a side view structural diagram of a 3D printing device using FDM technology proposed in the present invention;

[0021] Figure 4 This is a structural schematic diagram of the base cross-section of a 3D printing device using FDM technology proposed in the present invention.

[0022] In the figure: 1 base, 2 support column, 3 support top plate, 4 No. 1 reciprocating screw, 5 transmission box, 6 injection molding machine, 7 No. 1 motor, 8 slide groove, 9 ring groove, 10 support chassis, 11 turntable, 12 No. 2 reciprocating screw, 13 cutting knife, 14 No. 2 motor, 15 lifting column, 16 No. 3 motor. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0024] Reference Figure 1-Figure 4 A 3D printing device using FDM technology includes: a base 1, four support columns 2 are fixedly connected to the upper surface of the base 1, the upper ends of the support columns 2 are fixedly connected to a support top plate 3, two No. 1 reciprocating screws 4 are rotatably connected between the inner side surfaces of the support top plate 3, two No. 1 motors 7 are fixedly connected to the outer side surface of the support top plate 3, the output end of the No. 1 motor 7 is fixedly connected to one end of the No. 1 reciprocating screw 4, a transmission box 5 is threadedly connected to the two No. 1 reciprocating screws 4, the bottom surface of the transmission box 5 is slidably connected to an injector 6, and the injector 6 is electrically connected to the transmission box 5, and a cutting assembly and a printing table assembly are provided on the base 1;

[0025] An annular groove 9 is provided at the central position of the upper surface of the base 1, and the printing table assembly is arranged in the annular groove 9. The printing table assembly includes a supporting chassis 10, a lifting column 15 and a rotating structure. The four lifting columns 15 are fixedly connected to the inner bottom surface of the base 1, and the supporting chassis 10 is fixedly connected to the upper end of the lifting column 15. The rotating structure includes a turntable 11 and a No. 3 motor 16. The No. 3 motor 16 is fixedly connected to the lower surface of the supporting chassis 10. The turntable 11 is rotatably connected to the upper surface of the supporting chassis 10 through a rotating shaft. The lifting column 15 is provided below the supporting chassis 10 to provide the movement direction of the Z axis. At the same time, the turntable 11 is rotatably connected to the upper side of the supporting chassis 10 through a rotating shaft. The rotation of the turntable 11 can be controlled by the No. 3 motor 16 to provide a C axis rotating around the Z axis, thereby improving the working efficiency of the printing device.

[0026] The cutting assembly includes a No. 2 reciprocating screw 12, a cutting blade 13, and a No. 2 motor 14. The two No. 2 reciprocating screws 12 are rotatably connected between the inner side surfaces of the base 1. The No. 2 motor 14 is fixedly connected to the outer side surface of the base 1. The output end of the No. 2 motor 14 is fixedly connected to one end of the No. 2 reciprocating screw 12. The cutting blade 13 is threadedly connected to the No. 2 reciprocating screw 12. After printing is completed, the turntable 11 is lowered to the bottom of the cutting blade 13 by the lifting column 15. The No. 2 motor 14 can then control the rotation of the reciprocating screw, thereby controlling the cutting blade 13 to cut and separate the bottom of the printed object, and at the same time, the turntable 11 can be cleaned.

[0027] The length of the cutting blade 13 is 10 cm longer than the diameter of the turntable 11. The cutting blade 13 is composed of a fixing rod at the lower end and a cutting head at the upper end.

[0028] Two slide grooves 8 are provided on the upper surface of the base 1 , the fixing rod is arranged in the slide groove 8 , and the second reciprocating screw rod 12 is arranged directly below the slide groove 8 .

[0029] The functional principle of this utility model can be explained through the following operation modes:

[0030] By arranging the printing structure above the device, the movement directions of the X and Y axes can be provided. A lifting column 15 is arranged below the supporting chassis 10 to provide the movement direction of the Z axis. At the same time, a turntable 11 is connected to the support chassis 10 through a rotating shaft above the support chassis 10. The rotation of the turntable 11 can be controlled by the No. 3 motor 16, and a C axis rotating around the Z axis is provided, which can improve the working efficiency of the printing device. By arranging two No. 2 reciprocating screws 12 on the inner side of the base 1, and a cutting knife 13 is threadedly connected to the No. 2 reciprocating screw 12, after printing is completed, the turntable 11 is lowered to the bottom of the cutting knife 13 by the lifting column 15, and the rotation of the reciprocating screw can be controlled by the No. 2 motor 14, thereby controlling the cutting knife 13 to cut and separate the bottom of the printed object, and at the same time, the turntable 11 can be cleaned.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A 3D printing device using FDM technology, characterized in that: The invention comprises a base (1), wherein the upper surface of the base (1) is fixedly connected with four support columns (2), the upper ends of the support columns (2) are fixedly connected with a support top plate (3), the inner side surfaces of the support top plate (3) are rotatably connected with two No. 1 reciprocating screws (4), the outer side surfaces of the support top plate (3) are fixedly connected with two No. 1 motors (7), the output ends of the No. 1 motors (7) are fixedly connected to one end of the No. 1 reciprocating screws (4), the two No. 1 reciprocating screws (4) are threadedly connected with a transmission box (5), the bottom surface of the transmission box (5) is slidably connected with an injector (6), and the injector (6) is electrically connected to the transmission box (5), and a cutting assembly and a printing table assembly are provided on the base (1).

2. A 3D printing device using FDM technology according to claim 1, characterized in that: in: An annular groove (9) is provided at the center of the upper surface of the base (1), and the printing table assembly is arranged in the annular groove (9). The printing table assembly comprises a supporting chassis (10), a lifting column (15) and a rotating structure, wherein the four lifting columns (15) are fixedly connected to the inner bottom surface of the base (1), and the supporting chassis (10) is fixedly connected to the upper end of the lifting column (15).

3. The 3D printing device using FDM technology according to claim 2, characterized in that: in: The rotating structure comprises a turntable (11) and a third motor (16), wherein the third motor (16) is fixedly connected to the lower surface of the supporting chassis (10), and the turntable (11) is rotatably connected to the upper surface of the supporting chassis (10) via a rotating shaft.

4. The 3D printing device using FDM technology according to claim 3, characterized in that: in: The cutting assembly includes a No. 2 reciprocating screw rod (12), a cutting knife (13) and a No. 2 motor (14), wherein the two No. 2 reciprocating screw rods (12) are rotatably connected between the inner side surfaces of the base (1), the No. 2 motor (14) is fixedly connected to the outer side surface of the base (1), the output end of the No. 2 motor (14) is fixedly connected to one end of the No. 2 reciprocating screw rod (12), and the cutting knife (13) is threadedly connected to the No. 2 reciprocating screw rod (12).

5. The 3D printing device using FDM technology according to claim 4, characterized in that: in: The length of the cutting knife (13) is 10 cm longer than the diameter of the turntable (11), and the cutting knife (13) is composed of a fixing rod at the lower end and a cutting head at the upper end.

6. The 3D printing device using FDM technology according to claim 5, characterized in that: in: Two slide grooves (8) are provided on the upper surface of the base (1), the fixing rod is arranged in the slide groove (8), and the second reciprocating screw rod (12) is arranged directly below the slide groove (8).

Images