CN212446354U - 3D printer wire feeding mechanism with adjustable pressing force - Google Patents
3D printer wire feeding mechanism with adjustable pressing force Download PDFInfo
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- CN212446354U CN212446354U CN201922047604.2U CN201922047604U CN212446354U CN 212446354 U CN212446354 U CN 212446354U CN 201922047604 U CN201922047604 U CN 201922047604U CN 212446354 U CN212446354 U CN 212446354U
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- wire feeding
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- pressing force
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Abstract
The utility model designs a wire feeding mechanism of a 3D printer with adjustable pressing force, which comprises a frame (2), wherein the left side of the frame is provided with a motor (1), the output shaft of the motor is provided with a pinion (3), the big gear (4) is driven to rotate through meshing transmission, a wire feeding driving wheel (5) is arranged on a big gear shaft, the wire feeding driving wheel is fixed with the big gear shaft by a set screw (6), send a action wheel right side to be equipped with and send a follow driving wheel (7), send a follow driving wheel dress on compressing tightly frame (8), compress tightly the frame below and articulate at frame right side lower extreme through bolt (15), be equipped with stand (9) on the baffle in the middle of the frame, be equipped with the mounting hole on the stand, install in screw rod (10) left side in the mounting hole, the screw rod right side is connected through nut (12) of screwing and is compressed tightly the frame upper end, compress tightly the frame upper end with compress tightly spring (11) are equipped with between the stand. The utility model has the advantages that: the pressing force can be conveniently adjusted, and the requirements of wires with different diameters can be met.
Description
Technical Field
The utility model relates to a rapid prototyping technical field specifically belongs to a packing force adjustable 3D printer thread feeding mechanism.
Background
The 3D printing technology is additive manufacturing technology, the 3D printer is a machine of rapid prototyping technology, it uses digital model file as the basis, uses special wax material, plastic or powdered metal and other adhesive material, and manufactures three-dimensional object by printing adhesive material layer by layer, the 3D printer is used to manufacture products at present; the 3D printing technology has been applied to the fields of product prototyping, mold manufacturing, artistic creation, jewelry, etc., and is continuously developed and innovated in the fields of bioengineering and medicine, architecture, clothing, etc.
The common 3D printer used in daily life can print planar objects designed by a computer, and the working principle of the so-called 3D printer is basically the same as that of the common printer, but the printing materials are different. Currently, there are many different technologies for 3D printing, mainly divided into stereolithography, selective laser sintering, layered solid fabrication, and fused deposition fabrication.
Fused deposition type 3D printers have become the most popular 3D printing technology due to their characteristics of low cost, small volume, no pollution, low cost, etc., wherein the wire feeding mechanism of such printers is one of its key components; however, the FDM wire feeder often has problems of insufficient driving force, unstable wire feeding, and inconvenient adjustment of the wire feeder during operation, which affects the molding efficiency and the quality of the molded part.
Disclosure of Invention
In order to overcome the not enough of prior art scheme, the utility model provides a packing force adjustable 3D printer thread feeding mechanism. A pair of gears is added between the motor and the wire feeding wheel for transmission, so that a driven wheel can obtain larger torque when in work, and larger driving force can be obtained when in wire feeding; the wire feeding driving wheel is designed into a V-shaped wheel, the wire feeding driven wheel is designed into a bearing piece, and the two wire feeding wheels are optimally designed, so that the wire feeding driving force can be increased, the power loss caused by friction force is reduced, and the wire feeding stability is improved; by adding the structure capable of flexibly adjusting the pressing force, the wire feeding pressure can be stably adjusted, and the wire feeding requirement of wires with different diameters can be met. A pressure sensor is added in the pressing force adjusting structure, so that the wire feeding pressing force can be monitored in real time conveniently and visually adjusted. To sum up the utility model discloses can provide a simple structure's 3D printer thread feeding mechanism, the increase is sent a drive power, adjusts two clearance of sending the silk wheel in a flexible way and send a packing force, can solve the problem that proposes among the above-mentioned background art.
The utility model discloses a following technical scheme realizes: the utility model provides a packing force adjustable 3D printer thread feeding mechanism, includes the frame, the frame left side is equipped with the motor, installs the pinion on the output shaft of motor, drives the gear wheel through the meshing transmission and rotates, installs on the bull gear axle and send a action wheel, send a action wheel to be V type wheel, is equipped with V type groove on the V type wheel, V type wheel utilize holding screw realize with the bull gear axle is fixed, V type wheel right side is equipped with send a follow driving wheel, send a follow driving wheel and install on compressing tightly the frame, and compress tightly the frame below and articulate at frame right side lower extreme through the bolt, is equipped with the stand in the middle of the frame on the baffle, is equipped with the mounting hole on the stand, install on the screw rod left side in the mounting hole, the screw rod right side.
The top of the frame is provided with a wire inserting hole, and the wire inserting hole points to a gap between the two wire feeding wheels.
The wire feeding driving wheel is a V-shaped wheel, a V-shaped groove is formed in the V-shaped wheel, and the angle of the V-shaped groove can be set according to actually required driving force.
The wire feeding driven wheel is a bearing piece.
The large gear shaft is supported by a frame and a bearing seat, and the bearing seat is fastened on a base of the frame through screws.
The left side of the compression spring is provided with a gasket, the left side of the gasket is provided with a pressure sensor, and the gasket and the sensor are arranged in a mounting hole on the stand column.
The wire feeding driving wheel and the wire feeding driven wheel are provided with the guide wheel and the air cylinder below, the piston rod of the air cylinder is fixedly provided with the disc, the disc is tangent to the guide wheel, and wires output from the wire feeding wheel can change the conveying direction of the wires through the conveying of the disc and the guide wheel.
The utility model has the advantages that the torque transmitted by the motor is increased through the design of gear transmission between the motor and the wire feeding wheel, thereby increasing the wire feeding driving force; the wire feeding driving wheel is designed into a V-shaped wheel, so that the wire feeding driving force is obviously increased, and the problem of wire material movement can be solved. By replacing the wire feeding driven wheel with the rolling bearing, the power loss caused by friction force and the like can be reduced, the radial clearance is small, and the wire feeding stability is improved. Through the design that the pressing frame is hinged on the rack, the pressing bearing is convenient to adjust, and the silk material is fast introduced. By the design of the pressing frame, the screw, the pressing spring and the nut, a pressing force adjustable structure is added in the wire feeding mechanism, so that the distance between the two wire feeding wheels and the pressure of the pressing bearing on the wires can be adjusted; through the design of the pressure sensor, the wire feeding pressure can be conveniently and visually adjusted. Through the design of the wire inserting hole, the wire material is accurately guided into the space between the two wire feeding wheels. The guide wheels and the air cylinders are arranged below the two wire feeding wheels, the disc is fixedly arranged on a piston rod of the air cylinder, the disc is tangent to the guide wheels, and wires output from the wire feeding wheels are conveyed through the disc and the guide wheels, so that the conveying direction of the wires is changed. To sum up the utility model discloses can provide a 3D printer thread feeding mechanism of simple structure compactness, the utility model discloses can increase and send a drive power, adjust and send a pressure, adapt to the requirement of sending of different diameter silk materials.
Drawings
Fig. 1 is a schematic structural diagram of a wire feeding mechanism of a 3D printer with adjustable pressing force according to the present invention;
FIG. 2 is a view in the direction A of the schematic structural diagram of a wire feeding mechanism of a 3D printer with adjustable pressing force according to the present invention;
fig. 3 is the utility model relates to a packing force adjustable 3D printer wire drive feed mechanism silk material transmission's guide structure schematic diagram.
In the figure, 1-motor, 2-frame, 3-pinion, 4-bull gear, 5-wire feeding driving wheel, 6-set screw, 7-wire feeding driven wheel, 8-pressing frame, 9-upright post, 10-screw rod, 11-pressing spring, 12-screwing nut, 13-pressure sensor, 14-gasket, 15-bolt, 16-screw, 17-bearing seat, 18-guide wheel, 19-cylinder and 20-disc.
Detailed Description
The invention will be further described with reference to the accompanying drawings, without limiting the scope of the invention to the following:
in the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not merely or imply that the referenced devices or elements must be located at particular positions, constructed and operated in particular orientations.
As shown in fig. 1-2, a 3D printer wire feeding mechanism with adjustable pressing force comprises a frame 2, a motor 1 is arranged on the left side of the frame, a pinion 3 is mounted on an output shaft of the motor, a gearwheel 4 is arranged on the right side of the pinion, a gearwheel is driven to rotate by meshing transmission, a wire feeding driving wheel 5 is mounted on a gearwheel shaft, the wire feeding driving wheel is fixed to the gearwheel shaft by a screw 6, a wire feeding driven wheel 7 is arranged on the right side of the wire feeding driving wheel, the wire feeding driven wheel is mounted on a pressing frame 8, the lower part of the pressing frame is hinged to the lower end of the right side of the frame by a bolt 15, an upright post 9 is arranged on a middle baffle plate of the frame, a mounting hole is formed in the upright post, a left side of a screw 10 is mounted in the mounting hole, the right, a pressure sensor 13 is arranged on the left side of the gasket, the gasket and the sensor are arranged in a mounting hole on an upright column in the middle of the rack, the large gear shaft is supported by the rack and a bearing seat 17, and the bearing seat is fastened on a base of the rack through a screw 16; a guide wheel 18 and an air cylinder 19 are arranged below the two wire feeding wheels, a disc 20 is fixedly arranged on a piston rod of the air cylinder, the disc is tangent to the guide wheel, and wires output from the wire feeding wheels are conveyed through the disc and the guide wheel to change the conveying direction of the wires.
The working process of the utility model is as follows: the utility model relates to a packing force adjustable thread feeding mechanism, through sending the mode that the silk pipe sent the silk, send the silk pipe and send a hole interference fit, send the silk pipe to pass wire insertion hole, pinch roller in proper order and send the region between the action wheel, compress tightly the bearing and install on compressing tightly the frame, it rotates under the drive of silk material, mainly plays to compress tightly and supplementary effect of sending the silk. The position of the pressing frame can be adjusted by adjusting the screwing nut according to the pressing force of the rolling bearing on the wire. Guide wheels and air cylinders are arranged below the two wire feeding wheels, and wires output from the wire feeding wheels are conveyed out from the space between the circular disc and the guide wheels.
Claims (7)
1. A3D printer wire feeding mechanism with adjustable pressing force is characterized by comprising a rack (2), a motor (1) is arranged on the left side of the rack, a pinion (3) is installed on an output shaft of the motor, the big gear (4) is driven to rotate through meshing transmission, a wire feeding driving wheel (5) is arranged on a big gear shaft, the wire feeding driving wheel is fixed with the big gear shaft by a set screw (6), send a action wheel right side to be equipped with and send a follow driving wheel (7), send a follow driving wheel dress on compressing tightly frame (8), compress tightly the frame below and articulate at frame right side lower extreme through bolt (15), be equipped with stand (9) on the baffle in the middle of the frame, be equipped with the mounting hole on the stand, install in screw rod (10) left side in the mounting hole, the screw rod right side is connected through nut (12) of screwing and is compressed tightly the frame upper end, compress tightly the frame upper end with compress tightly spring (11) are equipped with between the stand.
2. The wire feeder of the 3D printer with the adjustable pressing force according to claim 1, characterized in that a wire inserting hole is formed in the top of the frame (2) and points to a gap between the two wire feeding wheels.
3. The wire feeding mechanism of 3D printer with adjustable pressing force as claimed in claim 1, wherein the wire feeding driving wheel is a V-shaped wheel, a V-shaped groove is formed on the V-shaped wheel, and the angle of the V-shaped groove is adjusted according to the actual required driving force.
4. The pressing force adjustable 3D printer wire feeder according to claim 1, wherein the wire feeding driven wheel is a bearing member.
5. The wire feeder for the 3D printer with the adjustable pressing force according to claim 1, characterized in that a gasket (14) is arranged on the left side of the pressing spring (11), a pressure sensor (13) is arranged on the left side of the gasket, and the gasket and the sensor are arranged in a mounting hole on the upright post (9).
6. The wire feeder for 3D printers with adjustable pressing force according to claim 1, wherein the gear shaft of the large gear is supported by a frame and a bearing seat (17), and the bearing seat is fastened on the base of the frame through a screw (16).
7. The wire feeding mechanism of the 3D printer with the adjustable pressing force as claimed in claim 1, wherein a guide wheel (18) and a cylinder (19) are arranged below the wire feeding driving wheel and the wire feeding driven wheel, a disc (20) is fixedly mounted on a piston rod of the cylinder, the disc is tangent to the guide wheel, and the conveying direction of the wire output from the wire feeding wheel can be changed through the conveying of the disc and the guide wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922047604.2U CN212446354U (en) | 2019-11-22 | 2019-11-22 | 3D printer wire feeding mechanism with adjustable pressing force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922047604.2U CN212446354U (en) | 2019-11-22 | 2019-11-22 | 3D printer wire feeding mechanism with adjustable pressing force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212446354U true CN212446354U (en) | 2021-02-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922047604.2U Active CN212446354U (en) | 2019-11-22 | 2019-11-22 | 3D printer wire feeding mechanism with adjustable pressing force |
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| Country | Link |
|---|---|
| CN (1) | CN212446354U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114103116A (en) * | 2021-11-12 | 2022-03-01 | 广东顺德优线三维科技有限公司 | Consumable connecting device for FDM type 3D printer |
-
2019
- 2019-11-22 CN CN201922047604.2U patent/CN212446354U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114103116A (en) * | 2021-11-12 | 2022-03-01 | 广东顺德优线三维科技有限公司 | Consumable connecting device for FDM type 3D printer |
| CN114103116B (en) * | 2021-11-12 | 2023-01-06 | 广东顺德优线三维科技有限公司 | Consumable connecting device for FDM type 3D printer |
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