3D printing wire extruder

Abstract

The utility model relates to the technical field of extruders, in particular to a 3D printing wire extruder which comprises a motor and a speed reducer connected with the motor, and an extrusion mechanism is arranged above the speed reducer. The extrusion mechanism comprises a base, an upper cover arranged above the base and a side plate arranged on one side of the base, and the base is of a cavity structure; an output shaft of the speed reducer extends into the cavity of the base, the output shaft of the speed reducer is sleeved with a driving gear, a driven gear is arranged on one side of the driving gear, the driving gear is meshed with the driven gear, a gear disc is arranged above the driving gear, and the gear disc is sleeved with the output shaft of the speed reducer; the upper end of the driving gear is provided with a first annular concave part which is concave inwards, the upper end of the driven gear is provided with a second annular concave part which is concave inwards, and an extrusion channel is formed between the first annular concave part and the second annular concave part. The utility model has the advantages of simple structure, convenient installation and disassembly, stable flow, convenient maintenance and replacement and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to extruder technical field especially relates to a 3D printing wire rod extruder. BACKGROUND

[0002] The extruder of 3D printer is extruded into the line needed by printer. At present, the extruder structure of existing 3D printer is complex, and is inconvenient to install and disassemble. When damage occurs, the extruder needs to be completely disassembled for repair and replacement, which is cumbersome and inconvenient to use.

[0003] Therefore, it is necessary to design a 3D printing wire rod extruder to solve the above technical problems. CONTENT OF UTILITY MODEL

[0004] The utility model discloses a kind of 3D printing wire rod extruders to solve the shortcomings in prior art, with Simple structure, it is convenient to install and disassemble, flow is stable, and it is easy to maintain and replace with Advantages such as.

[0005] In order to achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of 3D printing wire rod extruder, including motor and the speed reducer connected with motor, the upper portion of the speed reducer is equipped with extrusion mechanism;

[0007] The extrusion mechanism includes base, upper cover arranged on the upper portion of base and side plate arranged on one side of base, and the base is in cavity structure.

[0008] The output shaft of the speed reducer extends to the cavity of base, a driving gear is sleeved on the output shaft of the speed reducer, a driven gear is arranged on one side of the driving gear, the driving gear is engaged with the driven gear, a gear disc is arranged above the driving gear, and the gear disc is sleeved with the output shaft of the speed reducer.

[0009] The upper end of the driving gear is equipped with the first annular recess that is concave, the upper end of the driven gear is equipped with the second annular recess that is concave, and the extrusion channel is formed between the first annular recess and the second annular recess.

[0010] By adopting the above technical scheme: the motor drives the speed reducer, and then the output shaft of the speed reducer drives the driving gear to rotate, and the driving gear is engaged with the driven gear. When the material enters from the raw material feeding port, passes through the extrusion channel, and discharges through the discharge port, the filamentous material needed for 3D printing is extruded through the extrusion head assembly.

[0011] Preferably, one side of the base is provided with a raw material feeding port, the other side of the base is provided with a discharge port, and the raw material feeding port, the extrusion channel and the discharge port are coaxially connected.

[0012] Preferably, the discharge port is provided with an extrusion head assembly, the extrusion head assembly comprising a discharge pipe and an extrusion head connected with the discharge pipe, the front end of the extrusion head being conical in shape, and the front end of the extrusion head being provided with an extrusion hole.

[0013] By adopting the above technical scheme: the material here is a plastic tube, which enters from the raw material feeding port, passes through the extrusion channel, the discharge port, and then enters the extrusion head through the discharge pipe, and finally is extruded through the extrusion hole to form a filament material required for 3D printing.

[0014] Preferably, the first annular recess is provided with a plurality of first deep grooves which are evenly distributed in a ring shape, and the second annular recess is provided with a plurality of second deep grooves which are evenly distributed in a ring shape.

[0015] By adopting the above technical scheme: the extrusion channel formed by the first deep grooves and the second deep grooves meets the actual use requirements.

[0016] Preferably, the cavity of the base is further provided with a vertically arranged fixing column, the fixing column is sleeved with the driven gear, and the fixing column is arranged side by side with the output shaft of the speed reducer.

[0017] Preferably, the base is provided with a first waist-shaped hole for mounting the fixing column, and the upper cover is provided with a second waist-shaped hole for mounting the fixing column, and the second waist-shaped hole is arranged in a corresponding upper and lower relationship with the first waist-shaped hole.

[0018] By adopting the above technical scheme: the first waist-shaped hole and the second waist-shaped hole are used here to facilitate the installation of the fixing column; when the extruder needs to be repaired, the fixing column can be pulled out for repair and replacement, and the installation is also convenient and easy to operate.

[0019] Preferably, the side plate is provided with a first screw hole and a second screw hole, respectively, and the first screw hole and the second screw hole are arranged in a corresponding upper and lower relationship.

[0020] By adopting the above technical scheme: the side plate is fixedly connected with the base and the upper cover by rotating and tightening the screws through the first screw hole and the second screw hole, respectively, so that the installation, disassembly and repair are convenient.

[0021] The utility model has the following beneficial effects:

[0022] 1、 the utility model discloses a motor drives a speed reducer, and then the output shaft of the speed reducer drives the driving gear to rotate, because the driving gear is engaged with the driven gear;When the material enters from the raw material feeding port, passes through the extrusion channel, and is discharged after passing through the discharge port, the filament material required for 3D printing is extruded through the extrusion head assembly.

[0023] 2, The utility model has simple structure, convenient installation and removal, stable flow, easy maintenance and replacement and other advantages, and is easy to popularize and use. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the whole structure schematic diagram of the utility model;

[0025] Figure 2 It is the front view of the utility model;

[0026] Figure 3 It is the structure schematic diagram after the utility model removes extrusion head assembly;

[0027] Figure 4 It is the internal structure schematic diagram of the utility model;

[0028] Figure 5 It is the structure schematic diagram of driving gear and driven gear in the utility model;

[0029] Figure 6 It is the structure schematic diagram of extrusion head assembly in the utility model;

[0030] Figure 7 It is the structure schematic diagram of base in the utility model;

[0031] Figure 8 It is the structure schematic diagram of upper cover in the utility model.

[0032] In the drawing: 1 motor, 2 speed reducer, 3 base, 3-1 first waist-shaped hole, 4 upper cover, 4-1 first waist-shaped hole, 5 side plate, 5-1 first screw hole, 5-2 second screw hole, 6 output shaft, 7 driving gear, 8 driven gear, 9 gear disc, 10 first annular recess, 10-1 first deep groove, 11 second annular recess, 11-1 second deep groove, 12 extrusion channel, 13 raw material inlet, 14 discharge port, 15 discharge pipe, 16 extrusion head, 17 extrusion hole, 18 fixed column. DETAILED DESCRIPTION

[0033] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all.

[0034] Referring to Figures 1-8 A 3D printing wire extruder, including motor 1 and speed reducer 2 connected with motor 1, the upper side of speed reducer 2 is equipped with extrusion mechanism;

[0035] The extrusion mechanism includes base 3, upper cover 4 arranged above base 3 and side plate 5 arranged on one side of base 3, and base 3 is in cavity structure.

[0036] The output shaft 6 of the speed reducer 2 extends into the cavity of the base 3, the output shaft 6 of the speed reducer 2 is sleeved with a driving gear 7, one side of the driving gear 7 is provided with a driven gear 8, the driving gear 7 is engaged with the driven gear 8, the upper side of the driving gear 7 is provided with a gear disc 9, and the gear disc 9 is sleeved with the output shaft 6 of the speed reducer 2;

[0037] Referring to Figure 5 , the upper end of the driving gear 7 is provided with a first annular recess 10 which is concave, the upper end of the driven gear 8 is provided with a second annular recess 11 which is concave, and the first annular recess 10 and the second annular recess 11 form an extrusion channel 12.

[0038] In this embodiment, the motor 1 drives the speed reducer 2, and then drives the driving gear 7 to rotate through the output shaft 6 of the speed reducer 2, because the driving gear 7 is engaged with the driven gear 8; when the material enters from the raw material feeding port, passes through the extrusion channel 12, and is discharged through the discharge port, the 3D printing required filament material is extruded through the extrusion head assembly. Wherein, the motor 1 cooperates with the speed reducer 2 to make the flow of the extruder stable.

[0039] Specifically, referring to Figure 1 , Figure 3 , Figure 5 , one side of the base 3 is provided with a raw material feeding port 13, the other side of the base 3 is provided with a discharge port 14, the raw material feeding port 13, the extrusion channel 12 and the discharge port 14 are coaxially connected.

[0040] Specifically, referring to Figure 6 , the discharge port 14 is provided with an extrusion head assembly, the extrusion head assembly includes a discharge pipe 15 and an extrusion head 16 connected with the discharge pipe 15, wherein one end of the discharge pipe 15 is connected with the discharge port 14 and is correspondingly arranged with the extrusion channel 12, the other end of the discharge pipe 15 is connected with the extrusion head 16; the front end of the extrusion head 15 is conical, and the front end of the extrusion head 16 is provided with an extrusion hole 17.

[0041] In this embodiment, the material is a plastic pipe, which enters from the raw material feeding port 13, passes through the extrusion channel 12 and the discharge port 14 in turn, enters the extrusion head 16 through the discharge pipe 15, and finally extrudes the 3D printing required filament material through the extrusion hole 17.

[0042] Specifically, referring to Figure 5 , a plurality of first deep grooves 10-1 are arranged on the first annular recess 10, and the plurality of first deep grooves 10-1 are evenly distributed in a ring shape; a plurality of second deep grooves 11-1 are arranged on the second annular recess 11, and the plurality of second deep grooves 11-1 are evenly distributed in a ring shape.

[0043] In the embodiment, when the motor 1 drives the speed reducer 2, and then the output shaft 6 of the speed reducer 2 drives the driving gear 7 to rotate, since the driving gear 7 is engaged with the driven gear 8, the extrusion channel 12 formed by the first deep groove 10-1 and the second deep groove 11-1 meets the actual use requirement.

[0044] Specifically, referring to Figure 4 The cavity of the base 3 is further provided with a fixed column 18 arranged vertically, the fixed column 18 is sleeved with the driven gear 8, and the fixed column 18 is arranged side by side with the output shaft 6 of the speed reducer 2.

[0045] Specifically, referring to Figures 7-8 The base 3 is provided with a first waist-shaped hole 3-1 for mounting the fixed column 18, the upper cover 4 is provided with a second waist-shaped hole 4-1 for mounting the fixed column 18, and the second waist-shaped hole 4-1 is arranged in correspondence with the first waist-shaped hole 3-1.

[0046] In the embodiment, the first waist-shaped hole 3-1 and the second waist-shaped hole 4-1 are used to facilitate the mounting of the fixed column 18, when the extruder needs to be repaired, the fixed column 18 can be extracted for repair and replacement, and the installation is convenient and easy to operate.

[0047] Specifically, referring to Figure 2 The side plate 5 is provided with a first screw hole 5-1 and a second screw hole 5-2, respectively, and the first screw hole 5-1 and the second screw hole 5-2 are arranged in correspondence with each other.

[0048] In the embodiment, the first screw hole 5-1 and the second screw hole 5-2 are used to facilitate the mounting of the fixed column 18, when the extruder needs to be repaired, the fixed column 18 can be extracted for repair and replacement, and the installation is convenient and easy to operate.

[0049] In use, the motor 1 drives the speed reducer 2, and then the output shaft 6 of the speed reducer 2 drives the driving gear 7 to rotate, since the driving gear 7 is engaged with the driven gear 8, the plastic pipe is put into the raw material inlet 13, and then passes through the extrusion channel 12, the discharge port 14, the discharge pipe 15 and the extrusion head 16, and finally extrudes the filament material required for 3D printing through the extrusion hole 17.

[0050] In summary, the extruder has the advantages of simple structure, convenient installation and disassembly, stable flow, convenient maintenance and replacement, and is easy to popularize and use.

[0051] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A 3D printing filament extruder, comprising a motor (1) and a reducer (2) connected to the motor (1), characterized in that, An extrusion mechanism is provided above the reducer (2); The extrusion mechanism includes a base (3), an upper cover (4) disposed above the base (3), and a side plate (5) disposed on one side of the base (3). The base (3) has a hollow structure. The output shaft (6) of the reducer (2) extends into the cavity of the base (3). A drive gear (7) is sleeved on the output shaft (6) of the reducer (2). A driven gear (8) is provided on one side of the drive gear (7). The drive gear (7) meshes with the driven gear (8). A gear disk (9) is provided above the drive gear (7), and the gear disk (9) is sleeved with the output shaft (6) of the reducer (2). The upper end of the driving gear (7) is provided with a first annular recess (10) that is concave inward, and the upper end of the driven gear (8) is provided with a second annular recess (11) that is concave inward. An extrusion channel (12) is formed between the first annular recess (10) and the second annular recess (11).

2. The 3D printing filament extruder according to claim 1, characterized in that, The base (3) has a raw material inlet (13) on one side and a discharge outlet (14) on the other side. The raw material inlet (13), the extrusion channel (12) and the discharge outlet (14) are coaxially connected.

3. A 3D printing filament extruder according to claim 2, characterized in that, The discharge port (14) is provided with an extrusion head assembly, which includes a discharge pipe (15) and an extrusion head (16) connected to the discharge pipe (15). The front end of the extrusion head (16) is conical and has an extrusion hole (17) at the front end.

4. A 3D printing filament extruder according to claim 1, characterized in that, The first annular recess (10) is provided with a plurality of first deep grooves (10-1), which are evenly spaced in a ring shape; the second annular recess (11) is provided with a plurality of second deep grooves (11-1), which are evenly spaced in a ring shape.

5. A 3D printing filament extruder according to claim 1, characterized in that, The cavity of the base (3) is also provided with a vertically arranged fixed column (18), which is sleeved with the driven gear (8), and the fixed column (18) is arranged side by side with the output shaft (6) of the reducer (2).

6. A 3D printing filament extruder according to claim 5, characterized in that, The base (3) is provided with a first waist-shaped hole (3-1) for installing the fixing column (18), and the upper cover (4) is provided with a second waist-shaped hole (4-1) for installing the fixing column (18). The second waist-shaped hole (4-1) and the first waist-shaped hole (3-1) are arranged vertically and vertically respectively.

7. A 3D printing filament extruder according to claim 1, characterized in that, The side plate (5) is provided with a first screw hole (5-1) and a second screw hole (5-2), which are arranged vertically and vertically respectively.

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