CN210759272U - 3D printer nozzle - Google Patents
3D printer nozzle Download PDFInfo
- Publication number
- CN210759272U CN210759272U CN201921527085.3U CN201921527085U CN210759272U CN 210759272 U CN210759272 U CN 210759272U CN 201921527085 U CN201921527085 U CN 201921527085U CN 210759272 U CN210759272 U CN 210759272U
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- feeding
- mounting plate
- feeding shaft
- spray head
- shaft
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Abstract
The utility model relates to the technical field of 3D printing, and discloses a 3D printer nozzle, which comprises a mounting plate, a feeding mechanism and a spray head, wherein the feeding mechanism comprises a feeding driving piece, a feeding shaft and a pressing wheel, the power output end of the feeding driving piece is connected with the feeding shaft, the feeding shaft is provided with a first annular groove, the pressing wheel is provided with a second annular groove, under the driving of the feeding driving piece, the feeding shaft conveys wires to the spray head, the pressing wheel presses the wires to the feeding shaft, the feeding driving piece drives the feeding shaft to rotate, the feeding shaft utilizes the friction force between the feeding shaft and the wires to realize the driving of the wires to feed to the spray head, the wires are limited between the first annular groove and the second annular groove, and the wires are prevented from slipping in the feeding process to cause left and right deviation, ensure smooth feeding process.
Description
Technical Field
The utility model relates to a 3D prints technical field, especially relates to a 3D printer nozzle.
Background
3D printing technology is a class of rapid prototyping manufacturing technology that has developed rapidly in recent years. What is most widely used in the field of 3D printing technology is known as fused deposition modeling, which is mainly to transport thermoplastic polymer wires to a high temperature print head, melt the wires and continuously extrude the molten polymer, and build up a three-dimensional body in a layer-by-layer deposition manner with precise positioning.
However, the surface of a clamping guide wheel of a wire for 3D printing is generally a smooth surface or a small number of knurled surfaces, and in the printing process, when a feeding mechanism conveys the wire, the clamping is not firm due to the smooth surfaces of the guide wheel and the wire, so that the wire slips and deviates, and the wire is separated from the clamping guide wheel, which causes unsmooth feeding or feeding interruption, affects the printing quality of a model, and even causes the model to be scrapped.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: how to prevent the wire from deviating in the feeding process.
In order to solve the technical problem, the utility model provides a 3D printer nozzle, which comprises a mounting plate, a feeding mechanism and a spray head, wherein the feeding mechanism and the spray head are arranged on the mounting plate, the spray head is positioned below the feeding mechanism,
the feeding mechanism comprises a feeding driving piece, a feeding shaft and a pressing wheel, the feeding driving piece, the feeding shaft and the pressing wheel are all arranged on the mounting plate, the power output end of the feeding driving piece is connected with the feeding shaft, the axial direction of the feeding shaft is parallel to the axial direction of the pressing wheel, the feeding shaft is provided with a first annular groove which surrounds along the circumferential direction, the pressing wheel is provided with a second annular groove which surrounds along the circumferential direction and presses a wire rod to the first annular groove, and the feeding shaft conveys the wire rod to the spray head under the driving of the feeding driving piece.
According to the preferable scheme, a pressing arm is arranged between the pressing wheel and the mounting plate, the pressing wheel is arranged on the pressing arm, one end of the pressing arm is rotatably connected with the mounting plate, and the other end of the pressing arm is connected with the mounting plate through an elastic piece.
Preferably, the elastic part is an expansion spring arranged on the pressing arm in a penetrating mode, one end of the expansion spring is abutted to the mounting plate, the other end of the expansion spring is provided with an adjusting nut, and the adjusting nut is in threaded connection with the pressing arm.
Preferably, a transmission structure is arranged between the power output end of the feeding driving piece and the feeding shaft.
Preferably, the transmission structure comprises a first transmission gear arranged on the feeding driving part and a second transmission gear arranged on the feeding shaft, and the first transmission gear is meshed with the second transmission gear.
Preferably, the first transmission gear and the second transmission gear are located on the back surface of the mounting plate, and the feeding driving member, the feeding shaft and the pinch roller are located on the front surface of the mounting plate.
Preferably, an adjusting structure for adjusting the position of the spray head is arranged between the spray head and the mounting plate.
Preferably, the adjusting structure comprises adjusting screws arranged on two sides of the nozzle, the adjusting screws are in threaded connection with the mounting plate, one end of each adjusting screw is abutted against the nozzle, and the other end of each adjusting screw is a rotating end.
The embodiment of the utility model provides a 3D printer nozzle compares with prior art, and its beneficial effect lies in:
the embodiment of the utility model provides an utilize the pinch roller with the wire rod press to the pay-off axle, the pay-off driving piece drives the pay-off axle rotates, the pay-off axle utilize and the wire rod between the frictional force, realize driving the wire rod pay-off extremely the shower nozzle, wherein, through the pay-off is epaxial first ring channel with on the pinch roller the second ring channel will the wire rod restriction is in first ring channel with between the second ring channel, prevent that the wire rod from skidding and leading to controlling the off tracking at the pay-off in-process, ensure unobstructed of pay-off in-process, guarantee the printing quality of product.
Drawings
Fig. 1 is a schematic front view of a 3D printer nozzle according to a preferred embodiment of the present invention.
Fig. 2 is a rear view schematic diagram of the 3D printer nozzle according to the preferred embodiment of the present invention.
Fig. 3 is a schematic sectional view in the direction of a-a in fig. 1.
Fig. 4 is a schematic sectional view in the direction B-B in fig. 3.
In the figure, 1. wire; 2. mounting a plate; 3. a spray head; 4. a feeding driving member; 5. a feed shaft; 6. a pinch roller; 7. a first annular groove; 8. a second annular groove; 9. a pressing arm; 10. an elastic member; 11. adjusting the nut; 12. a first drive gear; 13. a second transmission gear; 14. adjusting the screw rod.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "connected," "connected," and "fixed" used in the present invention should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral body; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Furthermore, in the description of the present invention, it should be noted that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 4, the preferred embodiment of the present invention provides a 3D printer nozzle, which includes a mounting plate 2, a feeding mechanism and a nozzle 3, wherein the feeding mechanism and the nozzle 3 are disposed on the mounting plate 2, the nozzle 3 is located below the feeding mechanism,
the feeding mechanism comprises a feeding driving piece 4, a feeding shaft 5 and a pressing wheel 6, the feeding driving piece 4, the feeding shaft 5 and the pressing wheel 6 are all arranged on the mounting plate 2, the power output end of the feeding driving piece 4 is connected with the feeding shaft 5, the axial direction of the feeding shaft 5 is parallel to the axial direction of the pressing wheel 6, the feeding shaft 5 is provided with a first annular groove 7 which surrounds along the circumferential direction, the pressing wheel 6 is provided with a second annular groove 8 which surrounds along the circumferential direction and presses the wire rod 1 to the first annular groove 7, and the feeding shaft 5 conveys the wire rod 1 to the spray head 3 under the driving of the feeding driving piece 4.
According to the 3D printer nozzle based on the technical characteristics, the pressing wheel 6 is used for pressing the wire 1 to the feeding shaft 5, the feeding driving piece 4 drives the feeding shaft 5 to rotate, the feeding shaft 5 realizes driving the wire 1 to feed to the spray head 3 by using the friction force between the feeding shaft 5 and the wire 1, the wire 1 is limited between the first annular groove 7 and the second annular groove 8 on the pressing wheel 5 by using the first annular groove 7 on the feeding shaft 5 and the second annular groove 8 on the pressing wheel 6, the wire 1 is prevented from slipping in the feeding process and causing left and right deviation, smoothness in the feeding process is ensured, and the printing quality of products is ensured.
As shown in fig. 3, the first annular groove 7 and the second annular groove 8 are both arc grooves and are matched with the wire 1 with a circular cross section, and the feeding driving member 4 is a driving motor.
In this embodiment, as shown in fig. 1, a pressing arm 9 is disposed between the pressing wheel 6 and the mounting plate 2, the pressing wheel 6 is disposed on the pressing arm 9, one end of the pressing arm 9 is rotatably connected to the mounting plate 2, the other end of the pressing arm 9 is connected to the mounting plate 2 through elasticity, and the position of the pressing wheel 6 is finely adjusted through the pressing arm 9, so that the pressing wheel 6 has a certain elastic force to prevent the wire 1 from being jammed between the feeding shaft 5 and the pressing wheel 6.
Furthermore, the elastic element 10 is an expansion spring which is arranged on the pressing arm 9 in a penetrating manner, one end of the expansion spring is abutted to the mounting plate 2, an adjusting nut 11 is arranged at the other end of the expansion spring, the adjusting nut 11 is in threaded connection with the pressing arm 9, and the purpose of controlling the elastic force of the expansion spring is achieved by adjusting the position of the adjusting nut 11, so that the pressing force of the pressing wheel 6 is adjusted, and the appropriate pressing force can be adjusted according to actual conditions.
In this embodiment, as shown in fig. 2, a transmission structure is disposed between the power output end of the feeding driving member 4 and the feeding shaft 5, so as to realize stable transmission between the feeding driving member 4 and the feeding shaft 5.
Furthermore, the transmission structure comprises a first transmission gear 12 arranged on the feeding driving part 4 and a second transmission gear 13 arranged on the feeding shaft 5, wherein the first transmission gear 12 is meshed with the second transmission gear 13, and the transmission ratio of the first transmission gear 12 to the second transmission gear 13 is greater than 1, so that the feeding driving part 4 drives the feeding shaft 5 to perform speed reduction transmission, thereby being convenient for better adjusting the rotation speed of the feeding shaft 5 and controlling the feeding speed of the feeding shaft.
Furthermore, the first transmission gear 12 and the second transmission gear 13 are located on the back face of the mounting plate 2, and the feeding driving part 4, the feeding shaft 5 and the pressing wheel 6 are located on the front face of the mounting plate 2, so that space is reasonably utilized, and the overall structure of the feeding mechanism is more compact.
In this embodiment, as shown in fig. 4, an adjusting structure for adjusting the position of the nozzle 3 is disposed between the nozzle 3 and the mounting plate 2, so as to ensure that the nozzle 3 can be aligned with a feeding cavity formed by the first annular groove 7 and the second annular groove 8, and further ensure that the feeding process is smooth.
Furthermore, the adjusting structure comprises adjusting screws 14 arranged on two sides of the spray head 3, the adjusting screws 14 are in threaded connection with the mounting plate 2, one ends of the adjusting screws 14 are abutted to the spray head 3, the other ends of the adjusting screws 14 are rotating ends, when the spray head 3 is replaced, the positions of the adjusting screws 14 are adjusted to drive the spray head 3 to move left and right, the position of the spray head 3 is adjusted quickly, and the structure is simple and reliable.
The utility model discloses a working process does: the feeding shaft 5 is driven to rotate by the feeding driving part 4 through the transmission structure, the compression wheel 6 is driven to press the feeding shaft 5 through the elastic part 10 on the compression arm 9, so that the wire 1 is abutted against the feeding shaft 5, the feeding shaft 5 is ensured to drive the wire 1 to be conveyed towards the spray head 3, the first annular groove 7 and the second annular groove 8 play a limiting role in limiting the wire 1, and the wire 1 is prevented from slipping and deviating left and right.
To sum up, the embodiment of the utility model provides a 3D printer nozzle utilizes first ring channel 7 with second ring channel 8 is right wire 1 plays limiting displacement, prevents that wire 1 from skidding and leading to about the off tracking at the pay-off in-process, ensures unobstructed in the pay-off process, through hold-down arm 9 with the cooperation of elastic component 10, do pinch roller 6 provides an adjustable elastic force, avoids appearing the card phenomenon of dying, through adjusting screw 14 can realize right the position of shower nozzle 3 is adjusted, makes shower nozzle 3 is aimed at first ring channel 7 with the pay-off chamber that second ring channel 8 formed guarantees unobstructed in the pay-off process, and overall structure design is simple compact, ensures unobstructed in the pay-off process, guarantees the printing quality of product.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (8)
1. A3D printer nozzle is characterized by comprising a mounting plate, a feeding mechanism and a spray head, wherein the feeding mechanism and the spray head are arranged on the mounting plate, the spray head is positioned below the feeding mechanism,
the feeding mechanism comprises a feeding driving piece, a feeding shaft and a pressing wheel, the feeding driving piece, the feeding shaft and the pressing wheel are all arranged on the mounting plate, the power output end of the feeding driving piece is connected with the feeding shaft, the axial direction of the feeding shaft is parallel to the axial direction of the pressing wheel, the feeding shaft is provided with a first annular groove which surrounds along the circumferential direction, the pressing wheel is provided with a second annular groove which surrounds along the circumferential direction and presses a wire rod to the first annular groove, and the feeding shaft conveys the wire rod to the spray head under the driving of the feeding driving piece.
2. The 3D printer nozzle as claimed in claim 1, wherein a pressing arm is arranged between the pressing wheel and the mounting plate, the pressing wheel is arranged on the pressing arm, one end of the pressing arm is rotatably connected with the mounting plate, and the other end of the pressing arm is connected with the mounting plate through an elastic element.
3. The 3D printer nozzle as claimed in claim 2, wherein the elastic member is a telescopic spring passing through the pressing arm, one end of the telescopic spring abuts against the mounting plate, and the other end of the telescopic spring is provided with an adjusting nut which is in threaded connection with the pressing arm.
4. The 3D printer nozzle as claimed in claim 1, wherein a transmission structure is provided between the power output end of the feeding driving member and the feeding shaft.
5. The 3D printer nozzle as claimed in claim 4, wherein the transmission structure comprises a first transmission gear arranged on the feeding driving member and a second transmission gear arranged on the feeding shaft, and the first transmission gear and the second transmission gear are meshed.
6. The 3D printer nozzle of claim 5, wherein the first and second drive gears are located on a back side of the mounting plate, and the feed drive, feed shaft, and pinch roller are located on a front side of the mounting plate.
7. The 3D printer nozzle as claimed in any one of claims 1 to 6, wherein an adjustment structure is provided between the spray head and the mounting plate for adjusting the position of the spray head.
8. The nozzle of the 3D printer according to claim 7, wherein the adjusting structure comprises adjusting screws arranged on two sides of the nozzle, the adjusting screws are in threaded connection with the mounting plate, one end of each adjusting screw abuts against the nozzle, and the other end of each adjusting screw is a rotating end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921527085.3U CN210759272U (en) | 2019-09-12 | 2019-09-12 | 3D printer nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921527085.3U CN210759272U (en) | 2019-09-12 | 2019-09-12 | 3D printer nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210759272U true CN210759272U (en) | 2020-06-16 |
Family
ID=71061923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921527085.3U Active CN210759272U (en) | 2019-09-12 | 2019-09-12 | 3D printer nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210759272U (en) |
-
2019
- 2019-09-12 CN CN201921527085.3U patent/CN210759272U/en active Active
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