Pressure-adjustable 3D printing wire feeder

Abstract

The utility model discloses a 3D printing wire feeder with adjustable pressure relates to 3D printing technical field, including motor and wire material, motor front end outer surface detachable connection frame and driving gear, the driving gear is located the front end center of frame, the front end outer surface of frame is fixedly connected with adjusting seat, and the adjusting seat is located in the front end center of frame. And the middle part of the adjusting seat is in threaded connection with a screw rod. According to the pressure-adjustable 3D printing wire feeder, when the motor is used, the driving gear can be driven to rotate, the driving gear can drive the driven gear to rotate through meshing of the meshing teeth, and the driving gear and the driven gear can guide and convey wires through the wire feeding teeth; during conveying, the elastic force of the compression spring can be adjusted and changed by rotating the screw rod and the limiting nut, the elastic force of the compression spring to the tapping frame is indirectly changed, and therefore the pressing force of the driving gear and the driven gear is changed, it is ensured that the wire feeding teeth press the wire with proper pressure, and the pressure is adjustable.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, and in particular to a 3D printing wire feeder with adjustable pressure. Background Art

[0002] 3D printing is a type of rapid prototyping technology, also known as additive manufacturing. It is a technology that uses digital model files as the basis and uses adhesive materials such as powdered metal or plastic to construct objects by printing layer by layer. In the process of 3D printing, a wire feeder is required for wire feeding and printing, but existing wire feeders have certain inconveniences when used.

[0003] A wire feeding device for a 3D printer and a 3D printer are disclosed in Chinese utility model patent application No.: CN201621033646.0. The utility model integrates a wire conveying mechanism and a wire operation monitoring mechanism in the wire feeding mechanism, and uses the wire operation monitoring mechanism to monitor the operation status of the wire conveyed by the wire conveying mechanism, so that the wire feeding device can continue or stop conveying the wire according to the operation status of the wire. Therefore, the wire feeding device of the utility model can take into account the wire feeding and wire operation monitoring functions of the 3D printing process and reduce the occupied space. However, the wire feeding device is not convenient for adjusting the wire feeding pressure when in use, and the wire feeding is prone to slippage or wire breakage in the middle. For this reason, we propose a 3D printing wire feeding machine with adjustable pressure. Utility Model Content

[0004] The main purpose of the utility model is to provide a 3D printing wire feeder with adjustable pressure, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a pressure-adjustable 3D printing wire feeder, including a motor and a wire material, the front end outer surface of the motor is detachably connected with a frame and a driving gear, the driving gear is located at the front end center of the frame, the front end outer surface of the frame is fixedly connected with an adjustment seat, the middle part of the adjustment seat is threadedly connected with a screw, the outer wall of the screw is detachably connected with an opening frame and a limiting nut, the limiting nut is located on one side of the opening frame, a compression spring is installed between the opening frame and the adjusting seat, the lower end outer surface of the opening frame is movably connected with a driven gear, the outer walls of the driving gear and the driven gear are both provided with meshing teeth and wire feeding teeth, the meshing teeth are located below the wire feeding teeth, a fixed wire hole is provided in the middle of the frame, and a power cord is fixedly installed on the outer surface of one side of the motor.

[0006] Preferably, the screw rod passes through the adjustment seat and the perforated frame, and a connecting shaft is installed between the perforated frame and the driven gear.

[0007] Preferably, the driving gear is mounted on the output shaft end of the motor, and the driving gear is meshingly connected with the wire feeding teeth via meshing teeth.

[0008] Preferably, the wire feeding teeth are of a concave structure, and the driving gear and the driven gear are movably connected to the wire through the wire feeding teeth.

[0009] Preferably, a through hole is opened in the middle of the frame, and the number of the fixing wire holes is four groups.

[0010] Preferably, the motor passes through the frame through a through hole, and the power line is electrically connected to the motor.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The motor provided can drive the driving gear to rotate when in use, and the driving gear can drive the driven gear to rotate through meshing of the meshing teeth, so that the driving gear and the driven gear can guide and convey the wire through the wire feeding teeth. During conveying, the elastic force of the compression spring can be adjusted and changed by rotating the screw rod and the limit nut, and the elastic force of the compression spring on the hole frame is indirectly changed, thereby changing the clamping force of the driving gear and the driven gear, ensuring that the wire feeding teeth press the wire with appropriate pressure, thereby realizing adjustable pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a structural diagram of the workbench of the utility model;

[0015] Figure 3 This is a meshing structure diagram of the driving gear and the driven gear of the utility model.

[0016] In the figure: 1. Motor; 2. Frame; 3. Driving gear; 4. Driven gear; 5. Opening frame; 6. Meshing teeth; 7. Wire feeding teeth; 8. Screw; 9. Compression spring; 10. Wire material; 11. Fixed wire hole; 12. Power cord; 13. Limit nut; 14. Adjustment seat. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0018] like Figure 1-3As shown, the pressure-adjustable 3D printing wire feeder provided by the embodiment of the utility model includes a motor 1 and a wire material 10, the front end outer surface of the motor 1 is detachably connected with a frame 2 and a driving gear 3, the driving gear 3 is located at the front end center of the frame 2, the front end outer surface of the frame 2 is fixedly connected with an adjusting seat 14, the middle part of the adjusting seat 14 is threadedly connected with a screw 8, the outer wall of the screw 8 is detachably connected with an opening frame 5 and a limiting nut 13, the limiting nut 13 is located on one side of the opening frame 5, a compression spring 9 is installed between the opening frame 5 and the adjusting seat 14, the lower end outer surface of the opening frame 5 is movably connected with a driven gear 4, the outer walls of the driving gear 3 and the driven gear 4 are both provided with meshing teeth 6 and wire feeding teeth 7, the meshing teeth 6 are located below the wire feeding teeth 7, a fixed wire hole 11 is provided in the middle of the frame 2, and a power cord 12 is fixedly installed on the outer surface of one side of the motor 1.

[0019] Specifically, in this embodiment, a motor 1 and a wire 10 are included. The front end outer surface of the motor 1 is detachably connected to a frame 2 and a driving gear 3. When in use, the motor 1 can drive the driving gear 3 to rotate, and the driving gear 3 can drive the driven gear 4 to rotate through the meshing teeth 6. The driving gear 3 and the driven gear 4 can guide and transport the wire 10 through the wire feeding teeth 7. During transportation, the elastic force of the compression spring 9 can be adjusted and changed by rotating the screw rod 8 and the limit nut 13, which indirectly changes the elastic force of the compression spring 9 on the perforated frame 5, thereby changing the pressing force of the driving gear 3 and the driven gear 4, ensuring that the wire feeding teeth 7 press the wire 10 with a suitable pressure, and realizing The pressure is adjustable, the driving gear 3 is located at the front end center of the frame 2, the front end outer surface of the frame 2 is fixedly connected with an adjusting seat 14, the middle part of the adjusting seat 14 is threadedly connected with a screw 8, the outer wall of the screw 8 is detachably connected with a hole frame 5 and a limit nut 13, the limit nut 13 is located on one side of the hole frame 5, a compression spring 9 is installed between the hole frame 5 and the adjusting seat 14, the lower end outer surface of the hole frame 5 is movably connected with a driven gear 4, the outer walls of the driving gear 3 and the driven gear 4 are provided with meshing teeth 6 and wire feeding teeth 7, the meshing teeth 6 are located below the wire feeding teeth 7, a fixed wire hole 11 is provided in the middle of the frame 2, and a power cord 12 is fixedly installed on the outer surface of one side of the motor 1.

[0020] The utility model provides a pressure-adjustable 3D printing wire feeder, in which a motor 1 is arranged which can drive a driving gear 3 to rotate when in use, and can make the driving gear 3 drive a driven gear 4 to rotate by meshing with meshing teeth 6, so that the driving gear 3 and the driven gear 4 can guide and convey a wire material 10 through a wire feeding tooth 7. During conveying, the elastic force of a compression spring 9 can be adjusted and changed by a screw rod 8 and a limit nut 13, and the elastic force of the compression spring 9 on a perforated frame 5 is indirectly changed, thereby changing the pressing force of the driving gear 3 and the driven gear 4, and ensuring that the wire feeding tooth 7 presses the wire material 10 with a suitable pressure, thereby achieving adjustable pressure.

[0021] In an embodiment of the present invention, the screw rod 8 passes through the adjustment seat 14 and the hole frame 5 , and a connecting shaft is installed between the hole frame 5 and the driven gear 4 , and the connecting shaft can facilitate the rotation of the driven gear 4 .

[0022] In another embodiment provided by the utility model, the driving gear 3 is installed at the output shaft end of the motor 1, and the motor 1 can drive the driving gear 3 to rotate. The driving gear 3 is meshed and connected with the wire feeding teeth 7 through the meshing teeth 6. The driving gear 3 can drive the wire feeding teeth 7 to rotate through the meshing teeth 6, so as to facilitate the transportation of the wire material 10.

[0023] In another embodiment of the present invention, the wire feeding teeth 7 are concave structures, and the driving gear 3 and the driven gear 4 are movably connected to the wire 10 through the wire feeding teeth 7. The wire feeding teeth 7 facilitate the driving gear 3 and the driven gear 4 to clamp and transport the wire 10.

[0024] In an embodiment provided by the utility model, a through hole is opened in the middle of the frame 2, and the number of the fixing wire holes 11 is four groups, and the fixing wire holes 11 are convenient for fixing and installing the frame 2 by screws.

[0025] In another embodiment provided by the utility model, the motor 1 passes through the frame 2 through a through hole, and the power line 12 is electrically connected to the motor 1. The through hole facilitates the penetration of the motor 1 and the installation of the driving gear 3.

[0026] It should be noted that the utility model is a 3D printing wire feeder with adjustable pressure. When in use, the frame 2 is fixed to the front end of the motor 1 through the fixing wire hole 11 by means of the mounting screws, so that the output shaft of the motor 1 passes through the frame 2 through the through hole, and then the motor 1 is powered on through the power cord 12 to start the motor 1, so that the motor 1 drives the driving gear 3 to rotate, and the driving gear 3 can drive the driven gear 4 to rotate through the meshing teeth 6, so that the driving gear 3 and the driven gear 4 can guide and convey the wire 10 through the wire feeding teeth 7. During transportation, the elastic force of the compression spring 9 can be adjusted and changed by rotating the screw rod 8 and the limit nut 13, and the elastic force of the compression spring 9 on the hole frame 5 is indirectly changed, thereby changing the clamping force of the driving gear 3 and the driven gear 4, and ensuring that the wire feeding teeth 7 press the wire 10 with a suitable pressure, so as to achieve adjustable pressure, which is more practical.

[0027] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A pressure-adjustable 3D printing wire feeder, comprising a motor (1) and a wire (10), characterized in that: The front end outer surface of the motor (1) is detachably connected to the frame (2) and the driving gear (3), the driving gear (3) is located at the front end center of the frame (2), the front end outer surface of the frame (2) is fixedly connected to an adjustment seat (14), the middle part of the adjustment seat (14) is threadedly connected to a screw rod (8), the outer wall of the screw rod (8) is detachably connected to a perforated frame (5) and a limit nut (13), the limit nut (13) is located on one side of the perforated frame (5), and the A compression spring (9) is installed between the perforated frame (5) and the adjustment seat (14); a driven gear (4) is movably connected to the outer surface of the lower end of the perforated frame (5); meshing teeth (6) and wire feeding teeth (7) are provided on the outer walls of the driving gear (3) and the driven gear (4); the meshing teeth (6) are located below the wire feeding teeth (7); a fixed wire hole (11) is provided in the middle of the frame (2); and a power cord (12) is fixedly installed on the outer surface of one side of the motor (1).

2. The pressure-adjustable 3D printing wire feeder according to claim 1, characterized in that: The screw rod (8) passes through the adjustment seat (14) and the perforated frame (5), and a connecting shaft is installed between the perforated frame (5) and the driven gear (4).

3. The pressure-adjustable 3D printing wire feeder according to claim 1, characterized in that: The driving gear (3) is mounted on the output shaft end of the motor (1), and the driving gear (3) is meshedly connected with the wire feeding teeth (7) via meshing teeth (6).

4. The pressure-adjustable 3D printing wire feeder according to claim 1, characterized in that: The wire feeding teeth (7) are of an inwardly concave structure, and the driving gear (3) and the driven gear (4) are movably connected to the wire material (10) via the wire feeding teeth (7).

5. The pressure-adjustable 3D printing wire feeder according to claim 1, characterized in that: A through hole is provided in the middle of the frame (2), and the number of the fixing wire holes (11) is four groups.

6. The pressure-adjustable 3D printing wire feeder according to claim 1, characterized in that: The motor (1) passes through the frame (2) via a through hole, and the power line (12) is electrically connected to the motor (1).

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