CN215095661U

CN215095661U - 3D printing nozzle with cooling mechanism

Info

Publication number: CN215095661U
Application number: CN202121397237.XU
Authority: CN
Inventors: 黄炎
Original assignee: Sichuan Shanhai Impression Cultural Creativity Co ltd
Current assignee: Sichuan Shanhai Impression Cultural Creativity Co ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-12-10
Anticipated expiration: 2031-06-22

Abstract

The utility model belongs to the technical field of the vibration material disk equipment, specifically disclose a take cooling body's 3D print shower nozzle, including nozzle, cooling cylinder and heating member, seted up the heating chamber in the nozzle, the nozzle top is equipped with the feed port in intercommunication heating chamber, and the bottom of nozzle is equipped with the discharge opening in intercommunication heating chamber, and the periphery at the nozzle is fixed to the heating member, sets up the guiding hole of intercommunication feed port in the cooling cylinder, and the cooling cylinder adopts high temperature resistant special type plastics to make. Adopt the scheme of the utility model, because the cooling cylinder adopts high temperature resistant special type plastics to make, and is located the rear end of nozzle pay-off, consequently can completely cut off the heat of most nozzles, make the downthehole temperature of guiding not rise at the excessive speed to prevent that the downthehole threadlike consumptive material of guiding from taking place, solved among the prior art because of the stockline of delivery end softens in advance, thereby in the unable normal heated end of being sent into, appear the shower nozzle block up, extrude difficulty, the low scheduling problem of discharge rate.

Description

3D printing nozzle with cooling mechanism

Technical Field

The utility model belongs to the technical field of the vibration material disk equipment, concretely relates to take cooling body's 3D to print shower nozzle.

Background

Additive Manufacturing (AM) is commonly referred to as 3D printing, and a Manufacturing technology for Manufacturing a solid object is performed by stacking consumable materials such as a special metal material, a non-metal material, a medical biomaterial and the like layer by layer in modes of extrusion, sintering, melting, photocuring, spraying and the like through software and a numerical control system. Compared with the traditional method, the method has different processing modes on raw materials, is a manufacturing method of accumulating materials from bottom to top, and enables the manufacture of complex structural parts which cannot be realized due to the constraint of the traditional manufacturing mode in the past.

Consumptive material mainly includes powder and line material two kinds in the 3D prints, through sending into powder or line material in the shower nozzle, accomplish in the shower nozzle to powder or line material the heating melt the back, flow from the nozzle and carry out vibration material disk, wherein the line material adopts actuating mechanism centre gripping usually in the shower nozzle of sending into, nevertheless because present shower nozzle exists the heat of heating end and can transmit the transport end fast, make the line material that is located the transport end soften in advance, thereby unable normal quilt is sent into in the heating end, the shower nozzle jam appears, extrude the difficulty, the low scheduling problem of ejection of compact rate.

SUMMERY OF THE UTILITY MODEL

Not enough to exist among the prior art, the utility model provides a take cooling body's 3D to print shower nozzle to the line material that is located the transport end among the solution prior art softens in advance, thereby in the unable normal quilt is sent into the heating end, the shower nozzle appears and blocks up, extrudes difficulty, the low scheduling problem of ejection of compact rate.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a take cooling body's 3D to print shower nozzle, includes nozzle, cooling cylinder and heating member, has seted up the heating chamber in the nozzle, and the nozzle top is equipped with the feed port that the intercommunication heated the chamber, and the bottom of nozzle is equipped with the discharge opening that the intercommunication heated the chamber, and the periphery at the nozzle is fixed to the heating member, has seted up the guiding hole of intercommunication feed port in the cooling cylinder, and the cooling cylinder adopts high temperature resistant special type plastics to make.

Compared with the prior art, the utility model discloses following beneficial effect has:

when this scheme of adoption carries out vibration material disk, the linear consumptive material is sent into the heating chamber through the guiding hole through external mechanism, the heating member heaies up to the heating chamber, make the linear consumptive material that gets into the heating chamber melt, because the cooling cylinder adopts high temperature resistant special type plastics to make in this application, and be located the rear end of nozzle pay-off, consequently, can completely cut off the heat of most nozzle, make the temperature in the guiding hole can not rise excessively fast, thereby prevent that the problem of the interior linear softening consumptive material of guiding hole from taking place, it softens in advance because of the linear material of transport end among the prior art to have solved, thereby can't normally be sent into in the heating end, the shower nozzle blocks up, extrude the difficulty, the low scheduling problem of ejection of compact rate.

Further, still include the adapter sleeve, the adapter sleeve can be dismantled with nozzle and cooling cylinder and be connected.

Has the advantages that: the detachable connection facilitates maintenance and replacement of the nozzle and the cooling cylinder.

Furthermore, be equipped with the internal thread on the hole of adapter sleeve, the periphery that is close to the top at the nozzle and the periphery that the cooling cylinder is close to the bottom all are equipped with the external screw thread section.

Has the advantages that: through external screw thread section and internal screw thread cooperation, realize dismantling of adapter sleeve and nozzle and cooling cylinder and be connected, dismantle the installation more simple and convenient like this, and threaded connection can also improve the leakproofness of junction, prevent that the melting consumptive material from oozing.

Furthermore, a plurality of radiating fins are integrally formed on the outer wall of the connecting sleeve.

Has the advantages that: the connecting sleeve directly contacts with the nozzle, so the arrangement of the radiating fins can improve the radiating speed of the connecting sleeve and reduce the heat transfer to the cooling cylinder.

Furthermore, the radiating fins are disc-shaped, and a plurality of radiating fins are distributed at equal intervals along the axial direction of the connecting sleeve.

Has the advantages that: therefore, the heat dissipation of the connecting sleeve is further improved, and the heat transfer from the connecting sleeve to the cooling cylinder is reduced.

Further, still be equipped with the cooling chamber that encircles the guiding hole in the cooling cylinder, the cooling chamber is for sealing the setting, set up inlet opening and the apopore of intercommunication cooling chamber on the cooling cylinder.

Has the advantages that: the cooling and heat insulation capability of the cooling cylinder is further improved by the arrangement, and the problem that the consumable materials are difficult to propel due to softening in the guide hole is solved.

Furthermore, the water inlet hole and the water outlet hole are symmetrically arranged and are close to the top of the cooling cylinder.

Has the advantages that: make coolant like this can be full of the cooling chamber as far as to carry out the circulation flow in the cooling chamber, be close to the top setting of a cooling cylinder with inlet opening and apopore in addition, the coolant who avoids just getting into the cooling chamber like this directly exchanges with the heat that heats the intracavity, and makes from last to lower gradual cooling isolation, avoids heating the heat of intracavity to damage in a large number, influences melting of consumptive material.

Further, the bottom of the cooling cylinder is integrally formed with a limiting ring, the limiting ring protrudes downwards, the vertical cross section of the limiting ring is in a conical shape with a large upper part and a small lower part, the cooling cavity extends into the limiting ring, and the top of the nozzle is provided with a limiting groove matched with the limiting ring.

Has the advantages that: on one hand, the arrangement improves the cooling and heat insulation capacity of the cooling cylinder to the top of the nozzle near the feed hole, and reduces the heat transfer from the top of the nozzle to the top; on the other hand, the cooperation of spacing ring and spacing groove has improved the leakproofness of cooling cylinder with the nozzle junction, prevents that the melting consumptive material from outwards oozing, plugs up the junction of cooling cylinder and nozzle.

Drawings

Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.

Fig. 2 is a cross-sectional view of a nozzle in an embodiment of the present invention.

Fig. 3 is a sectional view of the connection sleeve in the embodiment of the present invention.

Fig. 4 is a sectional view of a cooling cylinder according to an embodiment of the present invention.

Reference numerals in the drawings of the specification include: the linear consumable 1, the nozzle 10, the connecting sleeve 11, the cooling cylinder 12, the heating element 13, the heating cavity 20, the feeding hole 21, the discharging hole 22, the internal thread 23, the external thread section 24, the radiating fin 25, the guide hole 26, the cooling cavity 27, the water inlet hole 28, the water outlet hole 29, the limiting ring 30 and the limiting groove 31.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings, and specific embodiments will be given.

Embodiment basically as shown in fig. 1, a 3D printing nozzle with a cooling mechanism comprises a nozzle 10, a connecting sleeve 11, a cooling cylinder 12 and a heating element 13, as shown in fig. 2, a heating cavity 20 is formed in the nozzle 10, a feeding hole 21 communicated with the heating cavity 20 is coaxially formed at the top of the nozzle 10, a discharging hole 22 communicated with the heating cavity 20 is coaxially formed at the bottom of the nozzle 10, the heating element 13 is fixed at the periphery of the nozzle 10, and the cooling cylinder 12 is made of high-temperature-resistant special plastic.

The connecting sleeve 11, the nozzle 10 and the cooling cylinder 12 are in threaded connection, specifically, an inner hole of the connecting sleeve 11 is provided with an inner thread 23, the periphery of the nozzle 10 close to the top and the periphery of the cooling cylinder 12 close to the bottom are provided with outer thread sections 24, the detachable connection of the connecting sleeve 11, the nozzle 10 and the cooling cylinder 12 is realized through the matching of the outer thread sections 24 and the inner thread 23, as shown in fig. 3, the outer wall of the connecting sleeve 11 is further integrally formed with a plurality of radiating fins 25, wherein the radiating fins 25 are disc-shaped, and the radiating fins 25 are distributed at equal intervals along the axial direction of the connecting sleeve 11.

Referring to fig. 4, a guide hole 26 communicating with the feeding hole 21 is formed in the middle of the cooling cylinder 12, a cooling cavity 27 surrounding the guide hole 26 is further formed in the cooling cylinder 12, the cooling cavity 27 is sealed, a water inlet 28 and a water outlet 29 communicating with the cooling cavity 27 are formed in the cooling cylinder 12, wherein the water inlet 28 and the water outlet 29 are symmetrically arranged and are close to the top of the cooling cylinder 12; the limiting ring 30 is integrally formed at the bottom of the cooling cylinder 12, the limiting ring 30 protrudes downwards, the vertical section of the limiting ring 30 is in a conical shape with a large top and a small bottom, the cooling cavity 27 extends into the limiting ring 30, and the top of the nozzle 10 is provided with a limiting groove 31 matched with the limiting ring 30.

When the linear consumable 1 is used, the linear consumable 1 is sent into the heating cavity 20 through the guide hole 26 by an external mechanism, the heating element 13 heats the heating cavity 20 to melt the linear consumable 1 entering the heating cavity 20, and the cooling cylinder 12 is made of high-temperature-resistant special plastic in the application, so that most of heat of the nozzle 10 can be isolated, and the temperature in the guide hole 26 cannot rise too fast; meanwhile, the external cooling medium enters the cooling cavity 27 through the water inlet hole 28 and is filled in the whole cooling cavity 27, and then is discharged from the water outlet hole 29, so that the temperature in the guide hole 26 is always kept in a low-temperature state in the process, and the problem that the linear consumable 1 in the guide hole 26 is softened is further prevented.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a take cooling body's 3D to print shower nozzle which characterized in that: including nozzle, cooling cylinder and heating member, seted up the heating chamber in the nozzle, the nozzle top is equipped with the feed port that the intercommunication heated the chamber, and the bottom of nozzle is equipped with the discharge opening that the intercommunication heated the chamber, and the periphery at the nozzle is fixed to the heating member, has seted up the guiding hole of intercommunication feed port in the cooling cylinder, and the cooling cylinder adopts high temperature resistant special type plastics to make.

2. The 3D printing nozzle with the cooling mechanism according to claim 1, wherein: the cooling device also comprises a connecting sleeve, and the connecting sleeve is detachably connected with the nozzle and the cooling cylinder.

3. The 3D printing nozzle with the cooling mechanism according to claim 2, wherein: the inner hole of the connecting sleeve is provided with internal threads, and the periphery of the nozzle close to the top and the periphery of the cooling cylinder close to the bottom are provided with external thread sections.

4. The 3D printing nozzle with the cooling mechanism according to claim 3, wherein: the outer wall of the connecting sleeve is integrally formed with a plurality of radiating fins.

5. The 3D printing nozzle with the cooling mechanism according to claim 4, wherein: the radiating fins are disc-shaped, and a plurality of radiating fins are distributed at equal intervals along the axial direction of the connecting sleeve.

6. The 3D printing nozzle with the cooling mechanism according to claim 1, wherein: still be equipped with the cooling chamber that encircles the guiding hole in the cooling cylinder, the cooling chamber is for sealing the setting, set up inlet opening and the apopore of intercommunication cooling chamber on the cooling cylinder.

7. The 3D printing nozzle with the cooling mechanism according to claim 6, wherein: the water inlet hole and the water outlet hole are symmetrically arranged and are close to the top of the cooling cylinder.

8. The 3D printing nozzle with the cooling mechanism according to claim 7, wherein: the bottom of the cooling cylinder is integrally formed with a limiting ring, the limiting ring protrudes downwards, the vertical cross section of the limiting ring is in a conical shape with a large upper part and a small lower part, the cooling cavity extends into the limiting ring, and the top of the nozzle is provided with a limiting groove matched with the limiting ring.