CN217916807U - Consumable heating structure of 3D printer - Google Patents

Abstract

The utility model discloses a consumable heating structure of a 3D printer, which comprises a heating block, wherein the middle part of the heating block is provided with a through hole, one end of the through hole is used for connecting a choke, the other end of the through hole is used for connecting a nozzle, a shunt part is arranged in the through hole, and the shunt part is provided with a plurality of shunt holes; the shunting part is at least one shunting separation blade, and a plurality of shunting holes are formed in the shunting separation blade; the throat pipe is in threaded connection with the through hole, and the nozzle is in threaded connection with the through hole. Compared with the prior art, this application is through setting up reposition of redundant personnel portion to utilize reposition of redundant personnel portion to shunt the consumptive material, make the heated area increase of consumptive material and be heated more evenly like this, the speed that the consumptive material melts is accelerated, and then accelerates the flow speed of consumptive material, improves the printing speed and the printing quality of 3D printer.

Description

Consumable heating structure of 3D printer

Technical Field

The utility model relates to a 3D prints the field, in particular to consumptive material heating structure of 3D printer.

Background

At present, the FDM 3D printer is more and more widely applied to various occasions, and the working principle of the FDM 3D printer is as follows: the heating of the block is transmitted to the throat and nozzle by heating a block during printing, and when the nozzle reaches the desired temperature, the consumable is fed into the extrusion head and melted in the nozzle, the extrusion head being connected to a three-axis system allowing it to move in the X, Y and Z directions. The molten material is extruded in thin lines and deposited layer by layer in predetermined locations, cooled and solidified, and the cooling of the material is accelerated by using cooling fans attached to the extrusion head, and when a layer is completed, the build platform moves down (or in other machine settings, the extrusion head moves up) and deposits a new layer, repeating the process until the 3D printing model is complete.

However, as shown in fig. 1, a heating block of an FDM type 3D printer which is the mainstream in the market at present is made of metal, a through hole 2 is formed in the heating block 1, a throat and a nozzle (not shown) are respectively formed at two ends of the through hole 2 of the heating block, softened consumables are extruded by pressure of an extrusion wheel, and in the structure of the existing nozzle assembly, the heating speed of the consumables is slow, so that the speed of the consumables flowing out of the nozzle is slow, and the printing speed of the 3D printer is affected.

SUMMERY OF THE UTILITY MODEL

The utility model provides a consumptive material heating structure of 3D printer has solved the consumptive material rate of heating that 3D printer exists among the prior art slowly, the slow technical problem of printing speed.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts as follows: the utility model provides a consumptive material heating structure of 3D printer, includes the heating piece, the middle part of heating piece is equipped with the through-hole, the one end of through-hole is used for connecting the choke, the other end of through-hole is used for connecting the nozzle, be equipped with reposition of redundant personnel portion in the through-hole, reposition of redundant personnel portion is equipped with a plurality of diffluence hole.

Further, the shunting part is at least one shunting baffle, and a plurality of shunting holes are formed in the shunting baffle.

Further, the flow dividing baffle is close to the throat.

Further, the through hole comprises a first hole portion and a second hole portion, and the shunting blocking sheet is arranged between the first hole portion and the second hole portion.

Further, the throat may be detachably coupled to the first hole portion, and the nozzle may be detachably coupled to the second hole portion.

Furthermore, a heat conducting piece in contact with the inner wall of the through hole is arranged in the through hole.

Further, the shunting separation blade with through-hole inner wall is connected, just heat-conducting member with the shunting separation blade is connected.

Further, the heating structure further includes a heating element and a temperature sensor disposed on a peripheral side of the through hole.

Further, the heating structure comprises at least two heating elements which are uniformly arranged on the periphery side of the through hole.

Furthermore, the throat pipe is in threaded connection with the through hole, and the nozzle is in threaded connection with the through hole.

Has the advantages that: compared with the prior art, this application still is equipped with reposition of redundant personnel portion in the through-hole, is provided with the less diffluence orifice of a plurality of size in the diffluence portion, and the both ends of diffluence orifice intercommunication diffluence portion are through setting up the diffluence portion to utilize the diffluence portion to shunt the consumptive material, make the heated area increase of consumptive material and be heated more evenly like this, the speed that the consumptive material melts is accelerated, and then accelerates the flow speed of consumptive material, improves the printing speed and the print quality of 3D printer.

Drawings

Fig. 1 is a schematic structural diagram of a heating block in the prior art.

Fig. 2 is a schematic perspective view of a heating block according to the present application.

Fig. 3 is a schematic view of a vertical cross-section of a heating block according to the present application.

Fig. 4 is a schematic cross-sectional view of a heating block according to the present application.

FIG. 5 is a schematic view of the mounting arrangement of the heating block, throat and nozzle of the present application.

Wherein, the utility model provides a main reference numeral is:

1. a heating block; 11. a through hole; 12. a flow dividing section; 2. a throat; 3. a nozzle; 13. a first mounting hole; 14. a baffle plate; 15. a second mounting hole; 4. a heat conducting member.

Detailed Description

It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The utility model provides a consumptive material heating structure of 3D printer, as shown in fig. 2 to 5, consumptive material heating structure mainly includes a heating piece 1, and the middle part of heating piece 1 is equipped with a through-hole 11, is equipped with choke 2 in the one end of through-hole 11, is equipped with nozzle 3 at the other end of through-hole 11, and the consumptive material is sent into through-hole 11 by choke 2 in, and the consumptive material is heated and softened after heating piece 1, sends out from nozzle 3 at last.

This application still is equipped with reposition of redundant personnel portion 12 in through-hole 11, be provided with the less diffluence orifice of a plurality of size on the reposition of redundant personnel portion 12, the both ends of diffluence orifice intercommunication reposition of redundant personnel portion 12, through setting up reposition of redundant personnel portion 12, and utilize reposition of redundant personnel portion 12 to shunt the consumptive material, it is more even just to be heated to make the heated area increase of consumptive material like this, the speed that the consumptive material melts accelerates, and then accelerate the flow velocity of consumptive material, improve the printing speed and the printing quality of 3D printer.

Preferably, in a preferred embodiment, reposition of redundant personnel portion 12 sets up the form of separation blade, for the reposition of redundant personnel separation blade, the reposition of redundant personnel separation blade fender is established in the inside of through-hole 11, the outer fringe and the inside contact of through-hole 11 of reposition of redundant personnel separation blade are connected, a plurality of above-mentioned diffluence pass has been seted up on the reposition of redundant personnel separation blade, under the effect of diffluence pass, can realize increasing the consumptive material flow, also can shift the heat to the center of through-hole 11 from the inner wall of through-hole 11, the through-hole 11 of heating piece 1 can increase simultaneously, so that the consumptive material that melts passes through heating piece 1 more easily, the speed that the heating of messenger's consumptive material melts is faster and more abundant under this design.

It should be noted that, the flow dividing blocking piece in this application may be provided as one, or may be provided as multiple pieces.

Furthermore, the shunting blocking piece is arranged in the through hole 11 at a position close to the throat pipe 2, the through hole 11 is divided into two parts under the action of the shunting blocking piece, the two parts are respectively a first hole part and a second hole part, the outer wall of the throat pipe 2 is provided with external threads, the position of the first hole part close to the port is provided with internal threads, so that the throat pipe 2 and the first hole part can be connected together in a threaded manner, and the shunting blocking piece is opposite to the throat pipe 2, so that consumables can be immediately divided into a plurality of flow paths after being extruded from the throat pipe 2, and the heating effect of the consumables is optimal; the second hole portion is also provided with an internal thread at a position close to the port, the nozzle 3 is provided with a connection pipe connected to the second hole portion, and an external thread is provided on the outer periphery of the connection pipe, thereby connecting the nozzle 3 and the second hole portion together by a thread.

Furthermore, this application still is equipped with heat-conducting piece 4 in through-hole 11, and heat-conducting piece 4 adopts the metal material, and heat-conducting piece 4 can directly or indirectly contact the heat conduction with the inner wall of through-hole 11, under heat-conducting piece 4's effect, can be with the heat by the middle part that adds heat block 1 and transmit through-hole 11, makes the consumptive material inside and outside homoenergetic be heated for the consumptive material is heated the speed of melting faster, and the effect is better. It should be noted that the heat-conducting member 4 may be disposed at any position in the through hole 11.

In a preferred embodiment, heat-conducting piece 4 is connected on the reposition of redundant personnel separation blade, through the reposition of redundant personnel separation blade indirect with the inner wall contact heat conduction of through-hole 11, such structure is convenient for process, and heat-conducting piece 4 can just heat the consumptive material in the position that the consumptive material got into, guarantees that the consumptive material just is heated at the very first time and melts, has promoted the flow velocity of consumptive material.

Further, still be equipped with heating element on heating block 1 in this application, be equipped with a plurality of first mounting hole 13 and second mounting hole 15 on heating block 1 specifically, first mounting hole 13 is seted up in the upper portion of heating block 1, the bottom of first mounting hole 13 is equipped with annular baffle 14, heating element packs into from the upper portion of first mounting hole 13, the fender ring of first mounting hole 13 can support heating element, so set up the form of fender ring, because the middle part opening of fender ring can be convenient for cross the line, avoid the problem that the circuit was placed at will. The second mounting hole 15 is used for mounting a temperature sensor, and the temperature sensor can detect the temperature of the heating block 1 and upload a signal to a controller, so that the temperature of the heating block 1 can be controlled better.

Preferably, heating structure in this application includes two at least heating element and temperature sensor, and heating element evenly sets up in through-hole 11 week side, can be fully and evenly heat heating block 1, avoids the consumptive material in the through-hole 11 to be heated unevenly, and temperature sensor then can be more comprehensive detect heating block 1's the whole temperature condition, reduces the detection mistake or the incomplete problem that temperature sensor temperature exists.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. The utility model provides a consumptive material heating structure of 3D printer, its characterized in that, includes the heating piece, the middle part of heating piece is equipped with the through-hole, the one end of through-hole is used for connecting the choke, the other end of through-hole is used for connecting the nozzle, be equipped with reposition of redundant personnel portion in the through-hole, reposition of redundant personnel portion is equipped with a plurality of diffluence orifice.

2. The consumable heating structure of claim 1, wherein the shunting portion is at least one shunting baffle, and a plurality of shunting holes are formed in the shunting baffle.

3. The consumable heating structure of claim 2, wherein the shunt baffle is proximate to the throat.

4. The consumable heating structure of claim 3, wherein the through-hole comprises a first hole portion and a second hole portion, and the shunt stop is disposed between the first hole portion and the second hole portion.

5. The consumable heating structure of claim 4, wherein the throat is detachably connected to the first hole portion, and the nozzle is detachably connected to the second hole portion.

6. The consumable heating structure of claim 2, wherein a heat conducting member is further provided in the through hole to contact with an inner wall of the through hole.

7. The consumable heating structure of claim 6, wherein the shunt baffle is connected to an inner wall of the through hole, and the heat conducting member is connected to the shunt baffle.

8. The consumable heating structure of claim 1, further comprising a heating element and a temperature sensor disposed on a circumferential side of the through-hole.

9. The consumable heating structure of claim 8, wherein the heating structure comprises at least two of the heating elements, the heating elements being uniformly disposed on the periphery side of the through-hole.

10. The consumable heating structure of claim 1, wherein the throat is in threaded connection with the through hole, and the nozzle is in threaded connection with the through hole.

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