CN213919619U

CN213919619U - 3D print head with orifice clearance structure

Info

Publication number: CN213919619U
Application number: CN202022789230.4U
Authority: CN
Inventors: 韦秀平; 王小芳
Original assignee: Shenzhen Chuangshiwei Industrial Co ltd
Current assignee: Shenzhen Chuangshiwei Industrial Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-08-10
Anticipated expiration: 2030-11-26

Abstract

The utility model discloses a 3D print head with orifice clearance structure, include: the shower nozzle body, top-down is equipped with defeated material passageway in the shower nozzle body, and the top of defeated material passageway links to each other with the feed inlet, and the bottom of defeated material passageway links to each other with the discharge gate. The side wall of the spray head body is provided with a hollow material pumping barrel, a sealing plug capable of sliding up and down is arranged in the material pumping barrel, and the peripheral side wall of the sealing plug is tightly attached to the inner wall of the material pumping barrel. The top of sealing plug is equipped with the actuating lever, and the material section of thick bamboo of taking out is worn out on the top of actuating lever, and the tip on the top of actuating lever is equipped with the handle. The bottom of the material pumping barrel is connected with a hose, the other end of the hose is provided with a connector, and the connector is detachably and hermetically connected with the discharge port. Compared with the prior art, the beneficial effects of the utility model are that: the overall structure is simple, the external cleaning structure is adopted, and the installation, the use and the later maintenance are very convenient.

Description

3D print head with orifice clearance structure

Technical Field

The utility model relates to a technical field of 3D printer, in particular to 3D print head with orifice clearance structure.

Background

The 3D printer, also called three-dimensional printer, is a machine of an accumulative manufacturing technique, i.e. a rapid prototyping technique, which is a machine based on a digital model file, and manufactures a three-dimensional object by printing a layer of adhesive material by using a special wax material, powdered metal or plastic and the like. The principle of the 3D printer is that data and raw materials are put into the 3D printer, and the machine can build the product layer by layer according to the program. 3D printer is in the use, and the shower nozzle blocks up easily, needs to clear up. The existing 3D printer orifice cleaning structure is built-in, namely the cleaning structure is arranged inside the spray head, and the built-in cleaning structure is difficult to install and maintain.

SUMMERY OF THE UTILITY MODEL

Problem to prior art existence, the utility model aims at providing a 3D print head with orifice clearance structure, aims at solving the problem of the built-in orifice clearance structure installation of current 3D printer and maintenance difficulty.

In order to achieve the above object, the utility model provides a 3D print head with orifice clearance structure, include: the shower nozzle body, top-down is equipped with defeated material passageway in the shower nozzle body, and the top of defeated material passageway links to each other with the feed inlet, and the bottom of defeated material passageway links to each other with the discharge gate. The side wall of the spray head body is provided with a hollow material pumping barrel, a sealing plug capable of sliding up and down is arranged in the material pumping barrel, and the peripheral side wall of the sealing plug is tightly attached to the inner wall of the material pumping barrel. The top of sealing plug is equipped with the actuating lever, and the material section of thick bamboo of taking out is worn out on the top of actuating lever, and the tip on the top of actuating lever is equipped with the handle. The bottom of the material pumping barrel is connected with a hose, the other end of the hose is provided with a connector, and the connector is detachably and hermetically connected with the discharge port.

Preferably, a heating device is arranged on the side wall of the spray head body and is arranged on the outer side of the material conveying channel.

Preferably, the heating means is a heating wire heater or an infrared heater.

Preferably, the driving rod is a screw, and the bottom end of the screw is rotatably arranged on the top of the sealing plug. The top of the material extracting barrel is provided with a sealing cover, and the top end of the screw rod is in threaded connection with the sealing cover.

Preferably, the sealing cover is provided with a plurality of pressure relief holes communicated with the interior of the material pumping barrel.

Preferably, be equipped with the internal thread on the inner wall of connector, be equipped with first external screw thread on the outer wall of discharge gate, accessible internal thread and first external screw thread are connected between connector and the discharge gate.

Preferably, a sealing gasket is arranged in the connecting head.

Preferably, the side wall of the material extracting barrel is provided with a suspension arm, the bottom end of the suspension arm is provided with a stand column, the outer wall of the stand column is provided with a second external thread, and the connector and the stand column can be connected through the internal thread and the second external thread.

Compared with the prior art, the beneficial effects of the utility model reside in that: the overall structure is simple, the external cleaning structure is adopted, and the installation, the use and the later maintenance are very convenient.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic cross-sectional structure diagram according to an embodiment of the present invention.

The purpose of the present invention is to provide a novel and improved method and apparatus for operating a computer.

Detailed Description

The utility model provides a 3D print head with orifice clearance structure.

Referring to fig. 1, fig. 1 is a schematic cross-sectional structure diagram according to an embodiment of the present invention.

As shown in fig. 1, in the embodiment of the present invention, this 3D print head with orifice clearance structure includes: the nozzle body 100, the nozzle body 100 is provided with a feeding channel 110 from top to bottom, the top of the feeding channel 110 is connected with a feeding port 111, and the bottom of the feeding channel 110 is connected with a discharging port 112. The adhesive material such as wax, powdered metal or plastic, etc. flows into the feeding passage 110 of the nozzle body 100 from the feeding hole 111, and then is ejected from the feeding passage 110 through the discharging hole 112 from the top down.

The side wall of the nozzle body 100 is provided with a hollow material pumping barrel 200, a sealing plug 300 capable of sliding up and down is arranged in the material pumping barrel 200, and the peripheral side wall of the sealing plug 300 is tightly attached to the inner wall of the material pumping barrel 200. The top of the sealing plug 300 is provided with a driving rod 310, the top end of the driving rod 310 penetrates out of the extracting cartridge 200, and the end of the top end of the driving rod 310 is provided with a handle 311.

The bottom end of the pumping barrel 200 is connected with a hose 400, the other end of the hose 400 is provided with a connector 410, and the connector 410 is detachably and hermetically connected with the discharge hole 112.

When the hole blockage occurs, the connecting head 410 of the hose 400 and the discharge hole 112 at the bottom of the nozzle body 100 can be connected together in a sealing manner as shown in fig. 1, so that the delivery passage 110 is communicated with the suction cylinder 200 through the hose 400. And then the driving rod 310 drives the sealing plug 300 to move upwards, and the material in the material conveying channel 110 is sucked into the material pumping cylinder 200 by the principle similar to a needle cylinder, so that the material conveying channel 110 of the spray head is dredged. When the hole is cleared, the connector 410 of the hose 400 can be detached, and the nozzle can work normally. At the same time, the sealing plug 300 is driven by the driving rod 310 to move downward, so as to discharge the material drawn into the pumping barrel 200, so as to continue to use the pumping barrel for work.

Specifically, in the present embodiment, a heating device 500 is disposed on a side wall of the nozzle body 100, the heating device 500 is a heating wire heater or an infrared heater, and the heating device 500 is disposed outside the material conveying channel 110. Through setting up heating device 500, can guarantee that when the clearance is stifled the hole, the material in the defeated material passageway 110 has certain mobility all the time to it is easier to make the clearance through-hole.

Specifically, in this embodiment, the driving rod 310 is a screw, and the bottom end of the screw is rotatably disposed on the top of the sealing plug 300. The top of the extraction barrel 200 is provided with a sealing cover 210, and the top end of the screw is in threaded connection with the sealing cover 210. The sealing plug 300 is driven to move up and down in the material drawing barrel 200 by the screw rod, so that labor is saved and the operation is more convenient compared with a drawing type.

Specifically, in the present embodiment, the sealing cover 210 is provided with a plurality of pressure relief holes 211 communicated with the inside of the material pumping cylinder 200. The sealing plug 300 is difficult to move up and down under the internal pressure because the space between the sealing plug 300 and the sealing cover 210 is compressed or expanded during the up and down movement of the sealing plug 300. By providing the pressure relief hole 211 in the sealing cap 210, the space between the sealing plug 300 and the sealing cap 210 can be communicated with the outside, thereby facilitating the driving of the sealing plug 300 to move up and down.

Specifically, in this embodiment, an internal thread is provided on the inner wall of the connector 410, a sealing washer is provided in the connector 410, a first external thread 113 is provided on the outer wall of the discharge port 112, and the connector 410 and the discharge port 112 are connected in a sealing manner by the internal thread and the first external thread 113, so that the connection is more stable and reliable.

Specifically, in the present embodiment, a suspension arm 220 is disposed on a side wall of the material extracting barrel 200, a column 221 is disposed at a bottom end of the suspension arm 220, a second external thread 222 is disposed on an outer wall of the column 221, and the connector 410 and the column 221 can be connected through an internal thread and the second external thread 222. When cleaning of the spray head is not required, connector 410 can be attached to mast 221 at the bottom end of boom 220 so that hose 400 does not interfere with the proper operation of the spray head.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. The utility model provides a 3D print head with orifice clearance structure which characterized in that includes: the spray head comprises a spray head body, wherein a material conveying channel is arranged in the spray head body from top to bottom, the top end of the material conveying channel is connected with a material inlet, and the bottom end of the material conveying channel is connected with a material outlet; a hollow material pumping barrel is arranged on the side wall of the spray head body, a sealing plug capable of sliding up and down is arranged in the material pumping barrel, and the peripheral side wall of the sealing plug is tightly attached to the inner wall of the material pumping barrel; the top of the sealing plug is provided with a driving rod, the top end of the driving rod penetrates through the material extracting barrel, and the end part of the top end of the driving rod is provided with a handle; the bottom of the material pumping barrel is connected with a hose, the other end of the hose is provided with a connector, and the connector is detachably and hermetically connected with the discharge port.

2. The 3D printer nozzle with an orifice cleaning structure as claimed in claim 1, wherein a heating device is disposed on a side wall of the nozzle body, and the heating device is disposed outside the feed delivery channel.

3. The 3D printer head with the orifice cleaning structure of claim 2, wherein the heating device is a heating wire heater or an infrared heater.

4. The 3D printer nozzle with the orifice cleaning structure of claim 1, wherein the driving rod is a screw rod, and the bottom end of the screw rod is rotatably arranged at the top of the sealing plug; the top of the material extracting barrel is provided with a sealing cover, and the top end of the screw rod is in threaded connection with the sealing cover.

5. The 3D printer nozzle with the orifice cleaning structure as claimed in claim 4, wherein the sealing cover is provided with a plurality of pressure relief holes communicated with the inside of the pumping barrel.

6. The 3D printer nozzle with the nozzle hole cleaning structure as claimed in claim 1, wherein an inner thread is provided on an inner wall of the connector, a first outer thread is provided on an outer wall of the discharge hole, and the connector and the discharge hole can be connected through the inner thread and the first outer thread.

7. The 3D printer nozzle with orifice cleaning structure of claim 6, in which a sealing gasket is further provided in the connector.

8. The 3D printer nozzle with the nozzle hole cleaning structure as claimed in claim 6, wherein a suspension arm is arranged on a side wall of the pumping barrel, a column is arranged at a bottom end of the suspension arm, a second external thread is arranged on an outer wall of the column, and the connector and the column can be connected through the internal thread and the second external thread.