3D printing discharging structure

Abstract

The utility model discloses a 3D printing discharging structure in the technical field of discharging structures, which comprises a mounting plate, a connecting block is fixedly welded on one side of the mounting plate, and two connecting rods are fixedly welded on one side of the mounting plate. The upper ends of the two movable frames are movably connected through the rubber wheels, the two rubber wheels are tensioned through the spring at one end, a linear material vertically penetrates through the upper guide cylinder and the sleeve, the two rubber wheels are close to each other to press the linear material, and the servo motor drives the rubber wheel on one side to drive the linear material to move. The upper end of a mounting plate is movably connected with an upper guide cylinder, the upper guide cylinder is limited through stop levers on the two sides, excessive deflection of the upper guide cylinder is avoided, when the device integrally moves, the movable upper guide cylinder deflects along with the upper guide cylinder, and when a long linear material enters the upper guide cylinder, the upper guide cylinder is driven by the two rubber wheels to stably drive the linear material; and knotting of the linear material is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of material discharging structures, in particular to a 3D printing material discharging structure. Background Art

[0002] 3D printing is an advanced technology for manufacturing three-dimensional objects. Compared with traditional industrial manufacturing, it does not require molds or large production lines. Simply put, 3D printing is to build objects by stacking materials layer by layer based on a computer-generated three-dimensional model on a machine. The printing wire material of 3D printing needs to be exported through the discharge structure so that the material can be stacked and printed.

[0003] However, the existing 3D printing discharge structure outputs the wire material through a nozzle. The ordinary discharge structure is not uniform when outputting the wire material, and it is easy to slip. In addition, the longer wire material is easy to cause the wire to be entangled during 3D sliding printing, resulting in poor discharge effect. Based on this, the utility model designs a 3D printing discharge structure to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a 3D printing discharge structure to solve the problem that the conventional discharge structure proposed above is not uniform in the discharge of wire material, which is prone to wire slippage, and the longer wire material is prone to wire entanglement during 3D sliding printing.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A 3D printing discharge structure comprises a mounting plate, a connecting block is fixedly welded on one side of the mounting plate, two connecting rods are fixedly welded on one side of the mounting plate, movable frames are movably connected to the two connecting rods, rubber wheels are movably connected to one end of the two movable frames, a servo motor is fixedly mounted on one side of the movable frame, the output end of the servo motor is connected to the rubber wheel, two arc-shaped limiting grooves are provided inside the mounting plate, one end of the rubber wheel is connected to a shaft, one end shafts of the two rubber wheels pass through the limiting groove, one end shaft bodies of the two rubber wheels are movably connected to a ring, a spring is connected between the two rings, a vertical hollow sleeve is welded on the bottom of the mounting plate, a hollow upper guide cylinder is movably connected to the upper end of the mounting plate, a through hole is provided on the mounting plate, and baffles are welded on both sides of the upper end of the mounting plate.

[0007] As a further solution of the utility model: the two connecting rods on one side of the mounting plate are arranged on the same horizontal plane, and the bearings are connected between the connecting rods and the movable frame.

[0008] As a further solution of the utility model: the width of the rubber wheel is greater than the diameter of the sleeve, and the sleeve is arranged in the middle of the two rubber wheels.

[0009] As a further solution of the utility model: the width of the blocking rod is greater than the diameter of the upper guide tube, and the limiting angle of the two blocking rods to the upper guide tube is one hundred and twenty degrees.

[0010] As a further solution of the utility model: the upper end of the upper guide cylinder is connected to a wire feed bucket, and the wire feed bucket is funnel-shaped.

[0011] As a further solution of the utility model: a plurality of groups of vertically distributed side openings are provided on the upper guide cylinder, a plurality of groups of fixing rings are fixedly welded on the upper guide cylinder, an elastic rod is connected to the fixing ring, a clamping wheel is movably connected to the upper end of the elastic rod, and the clamping wheel is embedded and installed in the side opening.

[0012] As a further solution of the utility model: the elastic rod is bow-shaped, and an arc groove is provided in the middle of the clamping wheel.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, rubber wheels are movably connected through the upper ends of two movable frames, and the two rubber wheels are tightened by a spring at one end. The linear material vertically penetrates the upper guide cylinder and the sleeve, so that the two rubber wheels are close to each other to press the linear material. The servo motor drives the rubber wheel on one side, so that the two rubber wheels stably drive the linear material to avoid linear slippage, and the sleeve is stably fed. The upper end of the mounting plate is movably connected to the upper guide cylinder, and the upper guide cylinder is limited by the stop rods on both sides to avoid excessive deflection of the upper guide cylinder. When the device moves as a whole, the movable upper guide cylinder follows the deflection. When the longer linear material enters the upper guide cylinder, it is pulled a longer distance to avoid knotting of the linear material.

[0015] 2. In the utility model, multiple groups of vertically distributed side openings are opened on the upper guide cylinder, multiple groups of fixing rings are fixedly welded on the upper guide cylinder, elastic rods are connected to the fixing rings, and a clamping wheel is movably connected to the upper end of the elastic rod, and the clamping wheel is embedded in the side opening. The multiple groups of fixing rings on the upper guide cylinder are used to fix the elastic rods, and the elastic rods elastically support the clamping wheel, which is embedded in the side opening. The multiple groups of clamping wheels clamp the linear materials, and when the linear materials enter vertically, they are clamped and wired to keep the linear materials in a tensioned state, thereby further preventing the linear materials from being entangled and knotted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 For the utility model Figure 1 The enlarged structural diagram at A in the middle;

[0018] Figure 3It is a schematic diagram of the overall explosion structure of the utility model;

[0019] Figure 4 It is a rear-view stereoscopic structural schematic diagram of the utility model.

[0020] In the figure: 1. Mounting plate; 2. Connecting block; 3. Connecting rod; 4. Movable frame; 5. Rubber wheel; 6. Servo motor; 7. Limiting groove; 8. Ring; 9. Spring; 10. Sleeve; 11. Upper guide cylinder; 12. Wire feed bucket; 13. Side opening; 14. Fixed ring; 15. Elastic rod; 16. Clamping wheel; 17. Stop rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example:

[0023] See also Figure 1-Figure 4In the embodiment of the utility model, a 3D printing discharge structure comprises a mounting plate 1, a connecting block 2 is fixedly welded on one side of the mounting plate 1, two connecting rods 3 are fixedly welded on one side of the mounting plate 1, both connecting rods 3 are movably connected with movable frames 4, one end of the two movable frames 4 are movably connected with rubber wheels 5, a servo motor 6 is fixedly installed on one side of the movable frame 4, the output end of the servo motor 6 is connected to the rubber wheel 5, two arc-shaped limiting grooves 7 are provided inside the mounting plate 1, one end of the rubber wheel 5 is connected to the shaft, one end shaft of the two rubber wheels 5 passes through the limiting groove 7, one end shaft body of the two rubber wheels 5 is movably connected with a sleeve ring 8, a spring 9 is connected between the two sleeve rings 8, a vertical hollow sleeve 10 is welded on the bottom of the mounting plate 1, the upper end of the mounting plate 1 is movably connected with a hollow upper guide cylinder 11, a through hole is provided on the mounting plate 1, and baffles 17 are welded on both sides of the upper end of the mounting plate 1, the connecting block 2 on one side of the mounting plate 1 is installed on the moving rail of the 3D printer, and the two connecting rods 3 on one side of the mounting plate 1 The movable frame 4 is movably supported, and the upper ends of the two movable frames 4 are movably connected with rubber wheels 5. The two rubber wheels 5 are tightened by a spring 9 at one end. The linear material vertically penetrates the upper guide cylinder 11 and the sleeve 10, so that the two rubber wheels 5 are close to each other to compress the linear material. The servo motor 6 drives the rubber wheel 5 on one side, so that the two rubber wheels 5 stably drive the linear material to avoid linear slippage, and the sleeve 10 is stably fed. The shaft body of the rubber wheel 5 penetrates the limiting groove 7, so that the rubber wheels 5 on both sides are stably opened and closed, which is suitable for compressing linear materials of different diameters. The sleeve ring 8 at one end of the rubber wheel 5 is movably connected to allow the spring 9 to be stably tightened. The upper end of the mounting plate 1 is movably connected to the upper guide cylinder 11, and the upper guide cylinder 11 is limited by the stop rods 17 on both sides to avoid excessive deflection of the upper guide cylinder 11. When the device moves as a whole, the movable upper guide cylinder 11 follows the deflection. When the longer linear material enters the upper guide cylinder 11, it is pulled a longer distance to avoid the linear material from being tangled, which is convenient for stable material guiding and has a good use effect.

[0024] Preferably, Figure 1 As shown, two connecting rods 3 on one side of the mounting plate 1 are arranged on the same horizontal plane, and bearings are connected between the connecting rods 3 and the movable frame 4. The two connecting rods 3 on the same horizontal plane support and connect the movable frame 4 on the same horizontal plane, and the bearings between the connecting rods 3 and the movable frame 4 reduce the rotational friction.

[0025] Preferably, Figure 3 As shown, the width of the rubber wheel 5 is greater than the diameter of the sleeve 10, and the sleeve 10 is arranged in the middle of the two rubber wheels 5. The wider rubber wheel 5 stably clamps the linear material, and the middle sleeve 10 is convenient for receiving the linear material guided by the upper end for stable discharge.

[0026] Preferably, Figure 1As shown, the width of the baffle rod 17 is greater than the diameter of the upper guide cylinder 11, and the two baffle rods 17 limit the angle of the upper guide cylinder 11 to 120 degrees. The upper guide cylinder 11 is stably limited by the wider baffle rod 17, and the two baffle rods 17 limit the upper guide cylinder 11 by 120 degrees to prevent the upper guide cylinder 11 from swinging excessively.

[0027] Preferably, Figure 3 As shown, the upper end of the upper guide cylinder 11 is connected with a wire feed bucket 12, and the wire feed bucket 12 is funnel-shaped. The funnel-shaped wire feed bucket 12 on the upper guide cylinder 11 is convenient for feeding and placing wire materials.

[0028] Preferably, Figure 1 and Figure 2 As shown, the upper guide cylinder 11 is provided with a plurality of groups of vertically distributed side openings 13, the upper guide cylinder 11 is fixedly welded with a plurality of groups of fixing rings 14, the fixing rings 14 are connected to an elastic rod 15, the upper end of the elastic rod 15 is movably connected with a clamping wheel 16, the clamping wheel 16 is embedded and installed in the side opening 13, the plurality of groups of fixing rings 14 on the upper guide cylinder 11 are used to fix the elastic rod 15, the elastic rod 15 elastically supports the clamping wheel 16, the clamping wheel 16 is embedded in the side opening 13, the plurality of groups of clamping wheels 16 compress the linear material, and when the linear material enters vertically, the linear material is compressed and wired, so that the linear material is in a tensioned state, thereby further avoiding entanglement and knotting of the linear material.

[0029] Preferably, Figure 2 As shown, the elastic rod 15 is bow-shaped, and an arc groove is provided in the middle of the pressing wheel 16. The bow-shaped elastic rod 15 has greater elastic deformation, allowing the pressing wheel 16 to press wires of different diameters. The arc groove in the middle of the pressing wheel 16 facilitates stable pressing of linear materials.

[0030] The working principle of the utility model is as follows: the electrical equipment of the device is connected to an external power supply, the connecting block 2 on one side of the mounting plate 1 is installed on the moving rail of the 3D printer, the two connecting rods 3 on one side of the mounting plate 1 are used to movably support the movable frame 4, the upper ends of the two movable frames 4 are movably connected with rubber wheels 5, the two rubber wheels 5 are tightened by a spring 9 at one end, the linear material vertically penetrates the upper guide cylinder 11 and the sleeve 10, the two rubber wheels 5 are brought close to each other to compress the linear material, the servo motor 6 drives the rubber wheels 5 on one side, and then the two rubber wheels 5 stably drive the linear material to avoid slipping. Linear, allowing stable feeding in the sleeve 10, the shaft of the rubber wheel 5 passes through the limiting groove 7, so that the rubber wheels 5 on both sides can be stably opened and closed, suitable for compacting linear materials of different diameters, the ring 8 at one end of the rubber wheel 5 is movably connected, allowing the spring 9 to be stably tightened, the upper end of the mounting plate 1 is movably connected to the upper guide cylinder 11, and the upper guide cylinder 11 is limited by the baffle bars 17 on both sides to avoid excessive deflection of the upper guide cylinder 11. When the device moves as a whole, the movable upper guide cylinder 11 follows the deflection, and when the longer linear material enters the upper guide cylinder 11, it is pulled a longer distance to avoid the linear material from being tangled, which is convenient for stable material guiding.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A 3D printing discharge structure, comprising a mounting plate (1), characterized in that: A connecting block (2) is fixedly welded to one side of the mounting plate (1); two connecting rods (3) are fixedly welded to one side of the mounting plate (1); the two connecting rods (3) are movably connected to a movable frame (4); one end of the two movable frames (4) are movably connected to a rubber wheel (5); a servo motor (6) is fixedly mounted on one side of the movable frame (4); the output end of the servo motor (6) is connected to the rubber wheel (5); two arc-shaped limiting grooves (7) are provided inside the mounting plate (1); the rubber wheel (5) is One end of the rubber wheel (5) is connected to a shaft, one end shaft of the two rubber wheels (5) passes through the limiting groove (7), one end shaft of the two rubber wheels (5) is movably connected to a sleeve ring (8), a spring (9) is connected between the two sleeve rings (8), a vertical hollow sleeve (10) is welded to the bottom of the mounting plate (1), the upper end of the mounting plate (1) is movably connected to a hollow upper guide cylinder (11), a through hole is provided on the mounting plate (1), and stop rods (17) are welded to both sides of the upper end of the mounting plate (1).

2. A 3D printing discharge structure according to claim 1, characterized in that: Two connecting rods (3) on one side of the mounting plate (1) are arranged on the same horizontal plane, and a bearing is connected between the connecting rod (3) and the movable frame (4).

3. A 3D printing discharge structure according to claim 1, characterized in that: The width of the rubber wheel (5) is greater than the diameter of the sleeve (10), and the sleeve (10) is arranged in the middle of the two rubber wheels (5).

4. A 3D printing discharge structure according to claim 1, characterized in that: The width of the blocking rod (17) is greater than the diameter of the upper guide cylinder (11), and the limiting angle of the two blocking rods (17) on the upper guide cylinder (11) is one hundred and twenty degrees.

5. A 3D printing discharge structure according to claim 1, characterized in that: The upper end of the upper guide cylinder (11) is connected to a wire feed bucket (12), and the wire feed bucket (12) is funnel-shaped.

6. A 3D printing discharge structure according to claim 1, characterized in that: The upper guide cylinder (11) is provided with a plurality of groups of vertically distributed side openings (13); a plurality of groups of fixing rings (14) are fixedly welded to the upper guide cylinder (11); an elastic rod (15) is connected to the fixing ring (14); a clamping wheel (16) is movably connected to the upper end of the elastic rod (15); and the clamping wheel (16) is embedded and installed in the side openings (13).

7. A 3D printing discharge structure according to claim 6, characterized in that: The elastic rod (15) is bow-shaped, and an arc-shaped groove is provided in the middle of the pressing wheel (16).

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