CN205889883U - 3D prints plasticity material feeding device based on gear engagement - Google Patents

Abstract

The utility model discloses a 3D prints plasticity material feeding device based on gear engagement can export the plasticity material in succession uniformly, improves and prints the effect. It is including the inlet pipe, quantitative material feeding unit and the conveying pipe that connect gradually, the inlet pipe be connected with feeding conveyor, be provided with the big little throat hopper of lower extreme in upper end on this feeding conveyor, quantitative material feeding unit include the shell and set up in this housing case the action wheel and from the driving wheel, the action wheel and from driving wheel intermeshing, and the position of meshing department and inlet pipe are corresponding with the hookup location of shell with the hookup location and the conveying pipe of shell. The utility model discloses a 3D prints plasticity material feeding device based on gear engagement, cooperation through inlet pipe, quantitative material feeding unit, conveying pipe and feeding conveyor etc. Can make things convenient for the transport of plasticity material to make the plasticity material carry uniformly in succession, improve the print quality.

Description

3D printing plastic material feeding device based on gear meshing

technical field

The utility model relates to a 3D printing device, in particular to a 3D printer feeding device which adopts a gear feeder to convey plastic materials such as pottery clay, and belongs to the technical field of special manufacturing.

Background technique

3D printing is a rapid prototyping method based on computer-drawn object models, using plastic materials such as powdered metal or thermosetting plastics, to build object entities by layer-by-layer printing. Most of the existing 3D printing nozzles are designed for PVC hard plastic or powdered metal as the medium. The PVC hard plastic is mainly sent to the nozzle through the wire feed roller and then heated and melted into a soft fluid to be sprayed out or passed through the high-energy laser at the nozzle outlet position. The metal powder is fused and solidified by cooling to form the desired object shape. However, for plastic materials such as clay, which are soft, compressible, variable, and require high printing temperature, the existing feeding system cannot guarantee continuous and uniform delivery of plastic materials, and the printing temperature and pressure cannot adapt to the printing temperature. Requirements for printing plastic materials such as clay.

Utility model content

The purpose of the utility model is to provide a 3D printing plastic material feeding device based on gear meshing for continuous and uniform plastic material delivery.

The utility model is realized through the following technical scheme: a 3D printing plastic material feeding device based on gear meshing, including a feeding pipe, a quantitative feeding device, and a feeding pipe connected in sequence, and the feeding pipe is connected with a feeding conveying device. The feed conveying device is provided with a shrinking hopper with a large upper end and a smaller lower end; the quantitative feeding device includes a casing and a driving wheel and a driven wheel arranged in the casing, and the driving wheel and the driven wheel are meshed with each other, And the position of the engaging part corresponds to the connection position of the feed pipe and the shell and the connection position of the feed pipe to the shell.

The feeding conveying device includes a shell, the necking hopper communicates with the shell, one end of the shell communicates with the feed pipe, and the other end is provided with a pressing plate, and a stepping motor is provided outside the pressing plate , the rotating shaft of the stepping motor extends into the shell and is connected with an auger.

The pressing plate is connected to the cylinder shell through connecting screws, and is matched with a corresponding sealing ring.

Throat hoops are all provided at the joints between the feed pipe and the shell, the joints between the feed pipe and the shell, and the joints between the shell and the feed pipe.

The end of the feeding pipe is provided with a throat hoop and a 3D printing nozzle.

The outer wall of the 3D printing nozzle is wound with a temperature control heat exchange tube.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

(1) The 3D printing plastic material feeding device based on gear meshing of the utility model can facilitate the transportation of plastic materials through the cooperation of feeding pipes, quantitative feeding devices, feeding pipes and feeding conveying devices, and make the plastic materials continuous Conveys evenly to improve print quality.

(2) Due to the arrangement of the cylinder shell and the auger, the transportation of plastic materials can be facilitated and the printing effect can be improved, and a sealing ring is further provided to prevent the leakage of plastic materials.

(3) It is equipped with a temperature-controlled heat exchange tube, which can easily adjust the temperature of the plastic material when it is output, and facilitate printing and molding.

Description of drawings

Fig. 1 is a kind of structure schematic diagram of the 3D printing plastic material feeding device based on gear meshing of the present invention;

Fig. 2 is a schematic structural view of the 3D printing nozzle of the 3D printing plastic material feeding device based on gear meshing of the present invention;

In the figure, 1—plastic material, 2—connecting screw, 3—stepper motor, 4—sealing ring, 5—throat clamp, 6—tube shell, 7—driving wheel, 10—temperature control heat exchange tube, 11—3D Print nozzle, 12—feeding pipe, 15—driven wheel, 16—housing, 18—feeding pipe, 20—auger, 21—shrinking hopper, 22—press plate.

detailed description

The utility model will be further described in detail below in conjunction with the examples, but the implementation of the utility model is not limited thereto.

Example 1:

As shown in Figure 1, the 3D printing plastic material feeding device based on gear meshing of the present utility model includes a feeding pipe 18, a quantitative feeding device and a feeding pipe 12 connected in sequence, and the feeding pipe 18 is connected with a feed conveying device, on which the feeding conveying device is provided with a shrinking hopper 21 with a large upper end and a smaller lower end; the quantitative feeding device includes a casing 16 and a driving wheel 7 and a driven wheel 15 arranged in the casing 16 housing, the described The driving wheel 7 and the driven wheel 15 mesh with each other, and the position of the meshing point corresponds to the connection position of the feed pipe 18 with the casing 16 and the connection location of the feed pipe 12 with the casing 16 . The 3D printing plastic material feeding device based on gear meshing of the utility model can facilitate the transportation of the plastic material 1 through the cooperation of the feeding pipe 18, the quantitative feeding device, the feeding pipe 12 and the feeding conveying device, and makes the plastic material 1 Continually and evenly transported to improve the quality of 3D printing. When in use, the plastic material 1 is fed into the feeding pipe 18 from the feeding conveying device, and then enters the quantitative feeding device, and through the engagement of the driving wheel 7 and the driven wheel 15, the plastic material 1 enters the feeding pipe 12 evenly and continuously, and along the The feeding tube 12 is sent out for 3D printing, which is quite convenient to use and transports the plastic material 1 continuously and evenly.

Example 2:

Preferably, the feed conveying device includes a shell 6, the necking hopper 21 communicates with the shell 6, one end of the shell 6 communicates with the feed pipe 18, and the other end is provided with a pressing plate 22, A stepping motor 3 is arranged on the outside of the pressing plate 22 , and the rotating shaft of the stepping motor 3 extends into the shell 6 and is connected with an auger 20 . Through the use of the auger 20, the plastic material 1 can be conveniently conveyed, the retention can be reduced, and the conveying efficiency can be improved.

Example 3:

Preferably, the pressure plate 22 is connected to the shell 6 through the connecting screw 2, and is matched with a corresponding sealing ring 4, and the sealing ring 4 is provided to prevent the plastic material 1 from leaking.

Example 4:

Preferably, throat hoops 5 are provided at the joints between the feed pipe 18 and the shell 6, the joints between the feed pipe 18 and the shell 16, and the joints between the shell 16 and the feed pipe 12 to prevent the retention of the plastic material 1 Causes blockage at the connection, improving delivery efficiency.

Example 5:

Preferably, the end of the feeding pipe 12 is provided with a hose clamp 5 and a 3D printing nozzle 11 .

Embodiment 6:

As shown in Figure 2, preferably, the outer wall of the 3D printing nozzle 11 is wound with a temperature control heat exchange tube 10, when the temperature of the plastic material 1 output by the 3D printing nozzle 11 is low, the temperature control heat exchange tube 10 can be The liquid with a higher temperature is input into the tube 10 to heat the plastic material 1 to increase the output temperature and improve the 3D printing effect; The liquid with a lower temperature is input in the medium, which cools down the plastic material, reduces the temperature during output, and improves the 3D printing effect. It is worth noting that the liquid is generally water, and the outside of the printing nozzle 11 can be provided with a groove matching the temperature control heat exchange tube 10. On the one hand, it can facilitate the installation of the temperature control heat exchange tube 10. On the one hand, the heat exchange area can be increased and the temperature control efficiency can be improved.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (6)

1. A 3D printing plastic material feeding device based on gear meshing, characterized in that it includes a sequentially connected feeding pipe (18), a quantitative feeding device, and a feeding pipe (12), and the feeding pipe (18) is connected with an inlet A material conveying device, on which a shrinking hopper (21) with a large upper end and a smaller lower end is arranged; the quantitative feeding device includes a casing (16) and a driving wheel ( 7) and the driven wheel (15), the driving wheel (7) and the driven wheel (15) are meshed with each other, and the position of the mesh is the same as the connection position of the feeding pipe (18) with the casing (16) and the feeding pipe ( 12) Corresponding to the connection position of the shell (16). 2. The 3D printing plastic material feeding device based on gear meshing according to claim 1, characterized in that: the feeding conveying device includes a cylinder shell (6), and the shrinking hopper (21) is connected with the cylinder The shell (6) is connected, one end of the shell (6) is connected with the feed pipe (18), and the other end is provided with a pressing plate (22), and a stepping motor (3) is provided outside the pressing plate (22). The rotating shaft of stepper motor (3) stretches in the shell (6), and is connected with auger (20). 3. The 3D printing plastic material feeding device based on gear meshing according to claim 2, characterized in that: the pressure plate (22) is connected to the shell (6) through the connecting screw (2), and is matched with a corresponding the sealing ring (4). 4. The 3D printing plastic material feeding device based on gear meshing according to claim 3, characterized in that: the connection between the feeding pipe (18) and the shell (6), the feeding pipe (18) and the shell A throat clamp (5) is provided at the joint of (16) and the joint of the casing (16) and the feeding pipe (12). 5. The 3D printing plastic material feeding device based on gear engagement according to any one of claims 1 to 4, characterized in that: the end of the feeding pipe (12) is provided with a throat hoop (5) and 3D printing nozzle (11). 6. The 3D printing plastic material feeding device based on gear meshing according to claim 5, characterized in that: a temperature control heat exchange tube (10) is wound on the outer wall of the 3D printing nozzle (11).