CN211942105U

CN211942105U - Heat abstractor suitable for FDM type 3D printer

Info

Publication number: CN211942105U
Application number: CN202020337444.5U
Authority: CN
Inventors: 李凌林; 李钢
Original assignee: Sichuan Sanhe Vocational College
Current assignee: Sichuan Sanhe Vocational College
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-11-17
Anticipated expiration: 2030-03-17

Abstract

The utility model relates to a 3D prints the field, and aim at provides one kind can carry out the cooling of fixing a point to the printing position of 3D printer, improves the heat abstractor who prints the cooling rate of material. The technical scheme is as follows: the utility model provides a heat abstractor suitable for FDM type 3D printer, includes the fan, the air outlet of fan is connected with the three-way pipe, the both ends of keeping away from the fan of three-way pipe all are connected with the connecting pipe, the one end that the three-way pipe was kept away from to the connecting pipe all is connected with quick-operation joint, the one end that the connecting pipe was kept away from to quick-operation joint is connected with the wind regime conversion head, the diameter in the inside wind channel of wind regime conversion head reduces along the direction of air-out.

Description

Heat abstractor suitable for FDM type 3D printer

Technical Field

The utility model relates to a 3D printer field, concretely relates to heat abstractor suitable for FDM type 3D printer.

Background

The nozzle of the 3D printer is used as one of core components of the 3D printer, the forming quality is determined to a great extent, the smoothness degree of silk material flowing out of an extrusion nozzle and the temperature of the silk material directly influence the precision of 3D printing, and the most common heat dissipation mode of FDM type 3D printers in the market is to install a common heat dissipation fan to directly aim at a printing area for air cooling heat dissipation, so that the heat dissipation area is dispersed; and ordinary radiator fan, because wind-force is less, and the distance is far away, and is general through cooling effect after dispersing, has the cooling untimely time molten material to glue the shower nozzle during high-speed printing, because preceding printing layer does not cool off, the printing layer of back glues fast, and the wire drawing is serious in the motion process, so when printing at a high speed, influences the printing quality.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can carry out the cooling of fixing a point to the printing position of 3D printer, improve the heat abstractor of the cooling rate of printing material.

In order to realize the purpose of the utility model, the utility model adopts the technical proposal that: the utility model provides a heat abstractor suitable for FDM type 3D printer, includes the fan, the air outlet of fan is connected with the three-way pipe, the both ends of keeping away from the fan of three-way pipe all are connected with the connecting pipe, the one end that the three-way pipe was kept away from to the connecting pipe all is connected with quick-operation joint, the one end that the connecting pipe was kept away from to quick-operation joint is connected with the wind regime conversion head, the diameter in the inside wind channel of wind regime conversion head reduces along the direction of air-out.

Furthermore, a fixed block is arranged on the outer wall of the quick connector connected with one of the air source conversion heads, a first connecting plate extending along the length direction of the connecting pipe is arranged above the fixed block, and a strip hole extending along the length direction of the first connecting plate is arranged on the first connecting plate; a T-shaped knob penetrating through the first connecting plate is arranged on the first connecting plate above the fixed block, one end of a thread is arranged at the bottom of the knob, a vertical screw hole is formed in the fixed block, and the bottom end of the knob is inserted into the screw hole and forms thread fit;

a second connecting plate is arranged at the lower part of one end, far away from the fixed block, of the first connecting plate, a threaded column is arranged on the upper surface of one end, close to the first connecting plate, of the second connecting plate, the threaded column penetrates through the strip hole, and a nut is arranged on the threaded column; and one end of the second connecting plate, which is far away from the first connecting plate, is fixed on the three-way pipe.

Furthermore, a first gap is formed at the joint of the air outlet of the fan and the three-way pipe, and sealant is filled in the first gap.

Furthermore, a second gap is arranged at the joint of the wind source conversion head and the quick connector, and sealant is filled in the second gap.

Further, the connecting pipe is a telescopic corrugated pipe.

Further, the wind source conversion head is arc-shaped.

The beneficial effects of the utility model are concentrated and are embodied in: the utility model can cool the printing position of the 3D printer at a fixed point, and improve the cooling speed of the printing material, thereby improving the 3D printing speed; specifically, the fan is used as a cold air power source, the fan conveys air into the air source conversion head through the connecting pipe, the air passes through the gradually reduced air channel, the flow speed of the air at the air outlet of the air source conversion head is increased, and cold air with certain pressure can be formed at high air speed; and then the position relation between the air source conversion head and the printer nozzle is adjusted through the connecting pipe, so that the cold air blown out by the air source conversion head can cool the printing area of the printer nozzle at a fixed point, the cooling speed of the printing material is increased, and the 3D printing speed is further increased.

Drawings

Fig. 1 is a schematic view of the overall structure of the heat dissipation device of the present invention;

FIG. 2 is a schematic view of the internal structure of the wind source conversion head of the present invention;

fig. 3 is a schematic view of the installation structure of the present invention.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-3, a heat dissipation device suitable for an FDM (frequency division multiplexing) type 3D printer comprises a fan 1 for illustration, wherein the 3D printer comprises a nozzle assembly, the nozzle assembly comprises a mounting seat 15, a throat 16 is arranged on the mounting seat 15, and a nozzle 17 is connected to the lower end of the throat 16; the fan 1 can be mounted on the mounting base by means of bolts or the like, and in the embodiment, the fan 1 is preferably a worm gear fan.

An air outlet of the fan 1 is connected with a three-way pipe 2, two ends of the three-way pipe 2, which are far away from the fan 1, are connected with connecting pipes 3, one ends of the connecting pipes 3, which are far away from the three-way pipe 2, are connected with quick connectors 4, one ends of the quick connectors 4, which are far away from the connecting pipes 3, are connected with air source conversion heads 5, the diameters of air channels inside the air source conversion heads 5 are gradually reduced along the air outlet direction, air passes through the gradually reduced air channels, the flow velocity of the air at the air outlet of the air source conversion heads 5 is increased, and cold air with certain pressure can be formed at higher air; the cold air blown out by the air source conversion head 5 cools the printing area of the printer nozzle at a fixed point, so that the cooling speed of the printing material is increased, and the 3D printing speed is further increased; the air source conversion heads 5 are arc-shaped, and one air source conversion head 5 faces the throat and is used for dissipating heat of the throat; the other air source converting head 5 is opposed to the nozzles for radiating the printing material ejected from the nozzles.

Further, the connecting pipe 3 is a telescopic bellows, and the distance between the air outlet of the air source converter 5 and the nozzle or the throat and the wind direction of the blown wind can be changed through the telescopic bellows.

Furthermore, in order to prevent air leakage at the joint between the air outlet of the fan 1 and the three-way pipe 2 and at the joint between the air source conversion head 5 and the quick connector 4 and improve the sealing performance of the heat dissipation device, a first gap 13 is arranged at the joint between the air outlet of the fan 1 and the three-way pipe 2, and the first gap 13 is filled with sealant; secondly, a second gap 14 is arranged at the joint of the wind source conversion head 5 and the quick joint 4, and sealant is filled in the second gap 14.

As shown in fig. 3, since the connecting pipe 3 connected to the air source converting head 5 facing the nozzle has a certain length, during a long-term printing process, the position of the air outlet of the air source converting head 5 facing the nozzle may change, which may cause the air source converting head 5 not to radiate heat to the nozzle at a certain point, and affect the printing efficiency; in order to solve the problem, a fixing block 6 is arranged on the outer wall of a quick connector 4 connected with one of the wind source conversion heads 5, the wind source conversion head 5 is the wind source conversion head 5 facing a nozzle, a first connecting plate 7 extending along the length direction of the connecting pipe 3 is arranged above the fixing block 6, and a strip hole 8 extending along the length direction of the first connecting plate 7 is arranged on the first connecting plate 7; a T-shaped knob 9 penetrating through the first connecting plate 7 is arranged on the first connecting plate 7 above the fixed block 6, one end of a thread is arranged at the bottom of the knob 9, a vertical screw hole is formed in the fixed block 6, and the bottom end of the knob 9 is inserted into the screw hole and forms thread fit;

a second connecting plate 10 is arranged at the lower part of one end, far away from the fixed block 6, of the first connecting plate 7, a threaded column 11 is arranged on the upper surface of one end, close to the first connecting plate 7, of the second connecting plate 10, the threaded column 11 penetrates through the strip hole 8, and a nut 12 is arranged on the threaded column 11; and one end of the second connecting plate 10, which is far away from the first connecting plate 7, is fixed on the three-way pipe 2 through screws.

When the position of the wind source conversion head 5 is adjusted, firstly, the screw cap 12 is unscrewed, the first connecting plate 7 can freely slide on the second connecting plate 10, at the moment, the wind source conversion head 5 is moved to a position 1-2 cm away from the nozzle, at the moment, the screw cap 12 is screwed, and the first connecting plate 7 and the second connecting plate 10 are fixed, namely, the wind source conversion head 5 is fixed; if the direction of the air outlet of the air source conversion head 5 needs to be finely adjusted, the knob 9 can be unscrewed, and the air source conversion head 5 can be rotated to change the direction of the air outlet.

The connecting pipe 3 connected with the wind source conversion head 5 opposite to the throat pipe can be directly used due to the short length.

It should be noted that, for simplicity of description, the above-mentioned embodiments of the method are described as a series of acts or combinations, but those skilled in the art should understand that the present application is not limited by the order of acts described, as some steps may be performed in other orders or simultaneously according to the present application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and elements referred to are not necessarily required in this application.

Claims

1. The utility model provides a heat abstractor suitable for FDM type 3D printer, includes fan (1), its characterized in that: the air outlet of the fan (1) is connected with a three-way pipe (2), two ends, far away from the fan (1), of the three-way pipe (2) are connected with connecting pipes (3), one ends, far away from the three-way pipe (2), of the connecting pipes (3) are connected with quick connectors (4), one ends, far away from the connecting pipes (3), of the quick connectors (4) are connected with air source conversion heads (5), and the diameter of an air channel inside the air source conversion heads (5) is gradually reduced along the direction of air outlet.

2. A heat dissipation device suitable for use in an FDM type 3D printer in accordance with claim 1, wherein: a fixed block (6) is arranged on the outer wall of the quick connector (4) connected with one of the air source conversion heads (5), a first connecting plate (7) extending along the length direction of the connecting pipe (3) is arranged above the fixed block (6), and a strip hole (8) extending along the length direction of the first connecting plate (7) is arranged on the first connecting plate (7); a T-shaped knob (9) penetrating through the first connecting plate (7) is arranged on the first connecting plate (7) above the fixing block (6), a section of thread is arranged at the bottom of the knob (9), a vertical screw hole is formed in the fixing block (6), and the bottom end of the knob (9) is inserted into the screw hole and forms thread fit;

a second connecting plate (10) is arranged on the lower portion of one end, far away from the fixing block (6), of the first connecting plate (7), a threaded column (11) is arranged on the upper surface of one end, close to the first connecting plate (7), of the second connecting plate (10), the threaded column (11) penetrates through the strip hole (8), and a nut (12) is arranged on the threaded column (11); one end, far away from the first connecting plate (7), of the second connecting plate (10) is fixed on the three-way pipe (2).

3. A heat dissipation device suitable for use in an FDM type 3D printer in accordance with claim 1, wherein: a first gap (13) is formed at the joint of the air outlet of the fan (1) and the three-way pipe (2), and sealant is filled in the first gap (13).

4. A heat dissipation device suitable for use in an FDM type 3D printer in accordance with claim 1, wherein: and a second gap (14) is arranged at the joint of the wind source conversion head (5) and the quick joint (4), and sealant is also filled in the second gap (14).

5. A heat dissipation device suitable for use in an FDM type 3D printer in accordance with claim 1, wherein: the connecting pipe (3) is a telescopic corrugated pipe.

6. A heat dissipation device suitable for use in an FDM type 3D printer in accordance with claim 1, wherein: the wind source conversion head (5) is arc-shaped.