3D printing nozzle self-adaptive adjusting structure

Abstract

The utility model discloses a self-adaptive adjusting structure of a 3D printing spray head, and particularly relates to the technical field of 3D printing. The nozzle piece comprises a fixed cylinder and a movable cylinder which are connected through a flange, the movable cylinder is arranged at the bottom of the fixed cylinder, and the top of the fixed cylinder is communicated with a fixed ring movably connected through a bearing. Through the cooperation of the electric heating column, the hollow column and the supporting cylinder, the effect of heating materials can be achieved, and meanwhile whether the temperature reaches a set value or not is detected through the temperature sensor, so that the temperature can be adjusted according to the melting point requirements of different materials; the material can rapidly reach and be kept at the melting temperature or softening temperature suitable for printing, the material has good flowability and can be uniformly and stably sprayed out of the nozzle piece, the situation that extrusion is difficult and even blockage occurs due to poor flowability is avoided, and therefore the printing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D printing technical field more particularly, it is a kind of 3D printing nozzle self-adapting adjustment structure. BACKGROUND

[0002] 3D printing nozzle is the key component of 3D printer, and its performance directly affects printing quality and efficiency. Among them, self-adapting adjustment system can monitor printing state in real time, and adjust the parameters of nozzle according to the needs, so as to ensure printing quality and printing efficiency.

[0003] As shown in the prior art with publication number CN118254376A, although the prior art can rotate the nozzle body by the cooperation of mounting seat and driving seat, the cooperation of driving cylinder and driving seat and the cooperation of rotating frame and adjusting assembly, so as to adjust the printing angle of nozzle body according to actual printing needs. However, although the prior art optimizes printing effect by angle adjustment, the flow efficiency of material in the nozzle is not fundamentally improved. This leads to the accumulation and solidification of material in certain parts of the nozzle during long-time printing process, forming blockage. Once blockage occurs, not only the printing process will be interrupted, but also the printing quality may be reduced, and even the nozzle may be damaged, thereby affecting the printing efficiency of the technical solution. SUMMARY

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a 3D printing nozzle self-adapting adjustment structure to solve the problem that material is prone to extrusion difficulty or even blockage in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a 3D printing nozzle self-adapting adjustment structure, comprising a nozzle part for 3D printing;

[0006] The nozzle part comprises a fixed cylinder and a movable cylinder connected by a flange, the movable cylinder is arranged at the bottom of the fixed cylinder, the top of the fixed cylinder is communicated with a fixed ring movably connected by a bearing, the inside of the fixed ring is installed with a feed pipe movably connected by a bearing, the bottom end of the fixed ring is installed with two mirror image distributed connecting rods, and the bottom of the two connecting rods is installed with a same hollow column;

[0007] The inside of the hollow column is installed with an electric heating column, and the two sides of the hollow column are fixedly communicated with a plurality of interval distributed branch cylinders, and the bottom side of the fixed cylinder is installed with a temperature sensor whose detection end extends into the inside of the fixed cylinder.

[0008] In a preferred embodiment, a slave gear is sleeved outside the top end of the fixed ring, a main gear is engaged at one end of the slave gear, a first motor is installed at the top of the fixed cylinder at the bottom end of the main gear, and the output shaft of the first motor is fixed with the bottom of the main gear.

[0009] In one preferred embodiment, the hollow ring is provided at the top of the fixing cylinder, and a plurality of air outlet pipes are communicated with the bottom of the hollow ring and extend into the fixing cylinder;

[0010] An air inlet pipe is communicated with the rear side of the hollow ring, and a fan is installed in the air inlet pipe.

[0011] In one preferred embodiment, the fixing cylinder is provided with a movable support, and a movable shaft is movably connected to the inside of the bottom of the movable support through a bearing, and a linkage plate for connecting the fixing cylinder is sleeved on the outside of both ends of the movable shaft.

[0012] A second motor is installed at one end of the movable support, and the output shaft of the second motor penetrates through the movable support and is fixed with the movable shaft.

[0013] In one preferred embodiment, the movable support is provided with a fixed support at the top, and a fixed shaft is movably connected to the inside of the bottom of the fixed support through a bearing, and a linkage plate for connecting the movable support is sleeved on the outside of both ends of the fixed shaft, a third motor is installed at the rear end of the fixed support, and the output shaft of the third motor penetrates through the fixed support and is fixed with the fixed shaft.

[0014] A plurality of mounting holes are formed at the outside of both ends of the fixed support.

[0015] In one preferred embodiment, a dust screen is provided at the rear side of the fan and is installed in the air inlet pipe.

[0016] The technical effects and advantages of the present application are as follows:

[0017] 1. The cooperation of the electric heating column, the hollow column and the supporting cylinder can realize the effect of heating the material, and the temperature sensor is used to detect whether the temperature reaches the set value, so that the temperature can be adjusted according to the melting point requirements of different materials, the material can quickly reach and maintain at a suitable printing melting temperature or softening temperature, the material has good fluidity, can be uniformly and stably sprayed from the nozzle, avoids the situation of difficult extrusion and even blockage due to poor fluidity, and thus improves the printing efficiency.

[0018] 2. The first motor drives the main gear to rotate, the main gear drives the fixed ring to rotate through the meshing of the slave gears, the fixed ring drives the hollow column and the plurality of supporting cylinders to rotate through the connecting rods, and the rotation of the hollow column and the plurality of supporting cylinders can stir the material to realize the effect of sufficient contact, and thus improve the heating efficiency of the material. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 It is a whole structure schematic view of the present application;

[0021] Figure 2 It is a bottom view of the movable support of the present application;

[0022] Figure 3 It is a side sectional view of the fixed cylinder of the present application;

[0023] Figure 4 It is the hollow column of the present application; Figure 3 It is an enlarged view of A part in the middle;

[0024] Figure 5 It is a hollow column sectional view of the present application.

[0025] The figure mark is: 1, fixed cylinder; 2, movable cylinder; 3, fixed ring; 4, feed pipe; 5, connecting rod; 6, hollow column; 7, electric heating column; 8, support cylinder; 9, temperature sensor; 10, from gear; 11, main gear; 12, first motor; 13, hollow ring; 14, air outlet pipe; 15, air inlet pipe; 16, fan; 17, movable support; 18, movable shaft; 19, linkage plate; 20, second motor; 21, fixed support; 22, fixed shaft; 23, link plate; 24, third motor; 25, mounting hole; 26, dust screen. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0027] With reference to the drawings in the description of the present application, Figures 1-5 The present application provides a 3D printing nozzle self-adaptive adjusting structure, which comprises a nozzle part for 3D printing.

[0028] The nozzle piece includes a fixed cylinder 1 connected by a flange and a movable cylinder 2 arranged at the bottom of the fixed cylinder 1, the top of the fixed cylinder 1 is communicated with a fixed ring 3 connected by a bearing, the inside of the fixed ring 3 is mounted with a feeding pipe 4 connected by a bearing, the bottom end of the fixed ring 3 is mounted with two mirror image distributed connecting rods 5, and the bottom of the two connecting rods 5 is mounted with the same hollow column 6; the inside of the hollow column 6 is mounted with an electric heating column 7, and the two sides of the hollow column 6 are fixedly communicated with a plurality of interval distributed supporting cylinders 8, and the bottom end of the fixed cylinder 1 is mounted with a temperature sensor 9 with a detection end extending into the inside of the fixed cylinder 1. Further, the temperature sensor 9 is installed as close to the nozzle outlet as possible to monitor the temperature of the printing material.

[0029] In use, the material is delivered to the inside of the nozzle piece through the feeding pipe 4 for 3D printing, and in order to improve the printing effect and printing efficiency, the staff starts the electric heating column 7 and the temperature sensor 9, the electric heating column 7 gradually heats the hollow column 6 and the plurality of supporting cylinders 8, and the heating of the material can be realized by the contact of the hollow column 6 and the plurality of supporting cylinders 8 with the material, and the temperature sensor 9 detects whether the temperature reaches the set value, so that the temperature can be adjusted according to the melting point requirements of different materials, so that the material can quickly reach and maintain at a suitable melting temperature or softening temperature, so that the material has good fluidity and can be uniformly and stably sprayed from the nozzle piece, avoiding the situation of difficult extrusion and even blockage due to poor fluidity, so that reasonable temperature setting can effectively improve the printing efficiency, and the staff can conveniently disassemble and clean the movable cylinder 2 due to the flange connection between the fixed cylinder 1 and the movable cylinder 2. In another embodiment, the fixed cylinder 1 and the movable cylinder 2 can also be connected by a universal joint to improve the flexibility and adjustment accuracy of the movable cylinder 2.

[0030] In order to improve the heating efficiency of the material, it is necessary to improve the contact efficiency of the material and heat, such as Figures 3-5 As shown, the top end of the fixed ring 3 is externally sleeved with a slave gear 10, one end of the slave gear 10 is engaged with a main gear 11, and the bottom end of the main gear 11 is provided with a first motor 12 mounted on the top of the fixed cylinder 1, and the output shaft of the first motor 12 is fixed with the bottom of the main gear 11.

[0031] In use, the first motor 12 drives the main gear 11 to rotate, the main gear 11 drives the fixed ring 3 to rotate through the meshing slave gear 10, the fixed ring 3 drives the hollow column 6 and the plurality of supporting cylinders 8 to rotate through the connecting rod 5, and the rotation of the hollow column 6 and the plurality of supporting cylinders 8 can stir the material to realize the effect of sufficient contact and improve the heating efficiency of the material.

[0032] In order to avoid abnormality caused by excessive temperature in the inside of the nozzle piece, it is necessary to timely adjust the temperature in the inside of the nozzle piece, such as Figure 3 and 4As shown, the top of the fixed cylinder 1 is provided with a hollow ring 13, the bottom of which is fixedly communicated with a plurality of air outlet pipes 14, the bottom ends of which extend into the inside of the fixed cylinder 1; the rear side of the hollow ring 13 is fixedly communicated with an air inlet pipe 15, the inside of which is provided with a fan 16, the rear side of which is provided with a dust screen 26, which is installed in the inside of the air inlet pipe 15.

[0033] In use, the hot air in the fixed cylinder 1 is sent out by the fan 16 through the air outlet pipes 14 into the inside of the air inlet pipe 15, and is discharged through the air inlet pipe 15, so that the temperature in the spray head part can be adjusted in time to avoid overheating. At the same time, when the spray head part is in standby, the fan 16 sends air into the inside of the air outlet pipe 14 through the air inlet pipe 15, and sends it into the inside of the fixed cylinder 1 and the movable cylinder 2 through the air outlet pipe 14, so that the material in the inside of the fixed cylinder 1 and the movable cylinder 2 is flushed out by the air flow, achieving the effect of cleaning the fixed cylinder 1 and the movable cylinder 2, and at the same time, the dust screen 26 blocks dust and other impurities from entering the inside of the spray head part to avoid pollution.

[0034] In order to adapt the spray head part to different printing needs, the printing angle of the spray head part needs to be adjusted in multiple ways, such as Figure 1 and 2 As shown, the fixed cylinder 1 is provided with a movable support 17, the inside of the bottom end of which is provided with a movable shaft 18 which is movably connected through a bearing, the outside of both ends of which is sleeved with a linkage plate 19 for connecting the fixed cylinder 1; one end of the movable support 17 is provided with a second motor 20, the output shaft of which penetrates the movable support 17 and is fixedly connected with the movable shaft 18; the top of the movable support 17 is provided with a fixed support 21, the inside of the bottom end of which is provided with a fixed shaft 22 which is movably connected through a bearing, the outside of both ends of which is sleeved with an adapter plate 23 for connecting the movable support 17; the rear end of the fixed support 21 is provided with a third motor 24, the output shaft of which penetrates the fixed support 21 and is fixedly connected with the fixed shaft 22; the outside of both ends of the fixed support 21 is provided with a plurality of installation holes 25 which are distributed at intervals.

[0035] In use, the connection of the linkage plate 19 and the fixed cylinder 1 enables the movable shaft 18 to drive the fixed cylinder 1 to rotate through the linkage plate 19 when the second motor 20 is started, so that the spray head part can be adjusted in front and rear angle, and at the same time, the connection of the adapter plate 23 and the movable support 17 enables the fixed shaft 22 to drive the movable support 17 to rotate left and right through the adapter plate 23 when the third motor 24 is started, and the movable support 17 in turn drives the spray head part to adjust in left and right angle, thereby achieving the effect of multi-angle adjustment of the spray head part, so that the spray head part can be self-adaptively adjusted according to the printing needs.

[0036] The various embodiments in this specification are described in a related manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0037] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A 3D printing nozzle self-adaptive adjusting structure, characterized in that: A nozzle piece for 3D printing The nozzle piece comprises a fixed cylinder (1) and a movable cylinder (2) connected by a flange, the movable cylinder (2) is arranged at the bottom of the fixed cylinder (1), the top of the fixed cylinder (1) is communicated with a fixed ring (3) movably connected by a bearing, the inside of the fixed ring (3) is mounted with a feeding pipe (4) movably connected by a bearing, the bottom end of the fixed ring (3) is mounted with two mirror image distributed connecting rods (5), the bottom of the two connecting rods (5) is mounted with a same hollow column (6); The inside of the hollow column (6) is mounted with an electric heating column (7), and the two sides of the hollow column (6) are fixedly communicated with a plurality of interval distributed supporting cylinders (8), one side of the bottom end of the fixed cylinder (1) is mounted with a temperature sensor (9) whose detection end extends to the inside of the fixed cylinder (1). 2.The 3D printing nozzle self-adapting adjusting structure according to claim 1, wherein: The outside of the top end of the fixed ring (3) is sleeved with a slave gear (10), one end of the slave gear (10) is engaged with a main gear (11), and the bottom end of the main gear (11) is provided with a first motor (12) mounted on the top of the fixed cylinder (1), and the output shaft of the first motor (12) is fixed with the bottom of the main gear (11).

3. The self-adjusting structure of a 3D printing nozzle according to claim 1, wherein: The top of the fixed cylinder (1) is mounted with a hollow ring (13), the bottom of the hollow ring (13) is fixedly communicated with a plurality of air outlet pipes (14), the bottom end of the air outlet pipe (14) extends to the inside of the fixed cylinder (1); The rear side of the hollow ring (13) is fixedly communicated with an air inlet pipe (15), and the inside of the air inlet pipe (15) is mounted with a fan (16).

4. The self-adjusting structure of a 3D printing nozzle according to claim 1, wherein: The fixed cylinder (1) is provided with a movable support (17), the inside of the bottom end of the movable support (17) is mounted with a movable shaft (18) movably connected by a bearing, the outside of the two ends of the movable shaft (18) is sleeved with a linkage plate (19) for connecting the fixed cylinder (1); One end of the movable support (17) is mounted with a second motor (20), the output shaft of the second motor (20) penetrates through the movable support (17) and is fixed with the movable shaft (18).

5. The self-adjusting structure of a 3D printing nozzle according to claim 4, wherein: The top of the movable support (17) is provided with a fixed support (21), the inside of the bottom end of the fixed support (21) is mounted with a fixed shaft (22) movably connected by a bearing, the outside of the front and rear ends of the fixed shaft (22) is sleeved with a connection plate (23) for connecting the movable support (17), the rear end of the fixed support (21) is mounted with a third motor (24), and the output shaft of the third motor (24) penetrates through the fixed support (21) and is fixed with the fixed shaft (22); The outside of the front and rear ends of the fixed support (21) is provided with a plurality of interval distributed mounting holes (25).

6. The self-adjusting structure of a 3D printing nozzle according to claim 3, wherein: The rear side of the fan (16) is provided with a dust screen (26), and the dust screen (26) is mounted in the inside of the air inlet pipe (15).

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