CN210553016U

CN210553016U - 3D printing pen nib that can dredge

Info

Publication number: CN210553016U
Application number: CN201921553398.6U
Authority: CN
Inventors: 钟广晨; 赵锦文
Original assignee: Xijing University
Current assignee: Xijing University
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-05-19
Anticipated expiration: 2029-09-18

Abstract

The utility model discloses a 3D printing pen nib that can dredge, this nib is fixed at the tip of 3D printing pen, contains: the bending body is fixed at the end part of the 3D printing pen at one end, has a bending structure, is internally provided with a cavity, is communicated with the 3D printing pen, and is contracted from the end part of the 3D printing pen to the other end of the 3D printing pen; the thimble containing cylinder is fixed on the side wall of the bending body, is communicated with the bending body, forms an angle with the bending body, and has the axial direction consistent with the direction of the other end of the bending body; the thimble is positioned in the thimble containing cylinder; and the pushing assembly is arranged in the thimble accommodating cylinder and used for pushing the thimble to extend out or retract from the other end of the bending body along the thimble accommodating cylinder. The utility model discloses a nib can clear up the nib plug fast.

Description

3D printing pen nib that can dredge

Technical Field

The utility model relates to a 3D printing pen nib, concretely relates to 3D printing pen nib that can dredge.

Background

With the popularization of 3D printing, 3D printing is used in various industries. The 3D printing pen is a pen with a 3D printing function, based on 3D printing, PLA and ABS plastics can be used for writing on any surface, and even drawing can be directly performed in the air, and extruded hot-melt plastics are rapidly cooled and solidified into a stable state in the air.

For example, chinese patent CN201710690089.2 discloses a 3D printing pen, which includes a housing, a charging barrel communicated with the inside of the housing, a motor, a rotating barrel connected to the motor, a moving block and a push rod accommodated in the rotating barrel accommodated in the housing, wherein the push rod and the piston are linked with the moving block, and the hot-melted material flows out from a discharge port at the end of the housing through a hot melting device for printing. However, when printing is stopped and the temperature of the discharge port is reduced, the material in the discharge port is solidified to block the discharge port.

In addition, when the surface of the wire used by the 3D printing pen is stained or the service life is too long, consumables inside the nozzle are carbonized, and the nozzle is blocked. The method for removing the fault generally includes:

(1) the 3D printing pen is disassembled, and the 3D printing pen nozzle is replaced;

(2) and dredging the 3D printing pen nozzle by using the needle-shaped object.

The method (1) has the disadvantages of time and labor waste and high cost for replacing the spray head, and the method (2) has the disadvantages that when the blockage in the spray head is poked into the spray head by using the needle-shaped object, the spray head can be dredged, but the blockage is in the spray head, and the spray head can be blocked by the blockage along with the molten material after long-time use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a 3D print pen nib that can dredge, this nib has solved the problem that current print pen shower nozzle easily blockked up, can clear up nib plug fast.

In order to achieve the above object, the utility model provides a 3D printing pen nib that can dredge, this nib is fixed at the tip of 3D printing pen, and this nib contains: the bending body is fixed at the end part of the 3D printing pen at one end, has a bending structure, is internally provided with a cavity, is communicated with the 3D printing pen, and is contracted from the end part of the 3D printing pen to the other end of the 3D printing pen; the thimble containing cylinder is fixed on the side wall of the bent body, is communicated with the bent body, forms an angle with the bent body, and has the axial direction consistent with the direction of the other end of the bent body; the ejector pin is positioned in the ejector pin receiving cylinder; and the pushing assembly is arranged in the thimble containing cylinder and used for pushing the thimble to extend out or retract from the other end of the bending body along the thimble containing cylinder.

Preferably, the pushing assembly comprises: the electromagnet is fixed at the top end in the thimble receiving cylinder, and the positive and negative poles of the coil of the electromagnet are electrically connected with a power supply or the power supply of the printing pen; the reset spring is sleeved on the electromagnet, and one end of the reset spring is fixedly connected with the top end in the thimble receiving cylinder; and the iron partition plate is positioned in the thimble containing barrel, is positioned below the electromagnet, is fixedly connected with the other end of the return spring and is fixedly connected with the top end of the thimble.

Preferably, the thimble passes the top of thimble containing cylinder and is located this thimble containing cylinder, and the top of this thimble is equipped with: a push plate.

The pushing assembly includes: the thimble return spring is positioned in the thimble receiving cylinder and sleeved on the thimble; the upper limiting plate is fixed in the circumferential direction of the ejector pin and is positioned above the ejector pin return spring; and the lower limiting plate is fixed on the circumferential direction of the inner wall of the thimble containing barrel and is positioned below the thimble return spring.

Preferably, the bottom end of the thimble is provided with: a needle tip having a recess therein.

Preferably, the thimble containing cylinder lower part inner wall circumference is equipped with: the ejector pin penetrates through the baffle.

Preferably, the contact part of the baffle and the thimble is provided with: and (5) sealing rings.

The utility model discloses a 3D print pen nib that can dredge has solved the problem that the print pen shower nozzle easily blockked up, has following advantage:

(1) the utility model discloses a printing pen nib, through the design of the bending body, thimble containing cylinder and promotion subassembly, through the axial of thimble containing cylinder and the direction of the other end of bending body unanimous, guarantee that the thimble can stretch out from the spout of bending body, through the promotion of promotion subassembly, make the spout plug of bending body clear away;

(2) the utility model discloses a printing pen nib, through the design of electro-magnet, reset spring and iron baffle, utilize the different performance under the electromagnetism iron circular telegram and the outage, realized the promotion function of promotion subassembly to exert elasticity through reset spring;

(3) the utility model discloses a printing pen nib, through thimble reset spring, last limiting plate and lower limiting plate, utilize thimble reset spring's elasticity effect, realize promoting and the function of automatic re-setting;

(4) the pen point of the utility model is convenient for clamping the dirt at the groove and ejecting the dirt out of the spout of the bending body by arranging the groove at the end part of the thimble;

(5) the utility model discloses a pen point of printing through set up the baffle in thimble containing barrel lower part, avoids in the material gets into thimble containing barrel, can prevent moreover that the thimble from falling out in the thimble containing barrel.

Drawings

Fig. 1 is a schematic perspective view of a 3D printing pen point capable of being dredged according to the present invention.

Fig. 2 is a schematic structural view of a 3D printing pen point capable of being dredged according to embodiment 1 of the present invention.

Fig. 3 is a partially enlarged view of fig. 2 according to the present invention.

Fig. 4 is a schematic structural view of a 3D printing pen point capable of being dredged according to embodiment 2 of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

A uncleavable 3D printing pen nib, see fig. 1 and 2, to be fixed at the end of a 3D printing pen, the nib comprising: the thimble structure comprises a bending body 2, a thimble containing cylinder 1, a thimble 10 and a pushing assembly. Wherein, the tip at 3D print pen is fixed to the one end of curved body 2, has the bending structure, and its inside has the cavity, communicates with 3D print pen, and its tip from 3D print pen is the shrink form to its other end. The thimble containing cylinder 1 is fixed on the side wall of the bending body 2, is communicated with the bending body 2, forms an angle with the bending body 2, and has the axial direction consistent with the direction of the other end of the bending body 2. The thimble 10 is located in the thimble accommodation tube 1. The pushing assembly is disposed in the thimble accommodating cylinder 1 and used for pushing the thimble 10 to extend or retract from the other end of the bending body 2 along the thimble accommodating cylinder 1.

Referring to fig. 2, the movable assembly includes: an electromagnet 7, a return spring 8 and an iron partition plate 9. Wherein, the electromagnet 7 is fixed at the top end in the thimble storage barrel 1, the positive and negative poles of the coil thereof are electrically connected with a power supply or the power supply of the printing pen, and the reset spring 8 is sleeved on the electromagnet. The iron partition plate 9 is positioned in the thimble storage barrel 1 and below the electromagnet 7, and is fixedly connected with the top end of the thimble 10. One end of the reset spring 8 is fixedly connected with the top end in the thimble containing barrel 1, and the other end is fixedly connected with the iron clapboard 9.

Referring to fig. 3, the bottom end of the thimble 10 is provided with: the needle point 6 is provided with a groove, so that the materials can be conveniently pushed out of the bent body 2.

Referring to fig. 3, the inner wall of the lower part of the thimble containing barrel 1 is circumferentially provided with: the baffle 4, thimble 10 passes this baffle 4, and the contact site of this baffle 4 and thimble 10 is equipped with: and the sealing ring 5 prevents materials from entering the thimble containing barrel 1.

The application method of the 3D printing pen nib capable of being dredged in this embodiment 1 specifically includes the following steps:

and when the pen head of the 3D printing pen stops working, the material is drawn out from the printing pen. The electromagnet 7 is powered off, the electromagnet 7 loses magnetism, the iron partition plate 9 is released, under the elastic force action of the reset spring 8, the iron partition plate 9 drives the ejector pin 10 to extend from the ejector pin containing barrel 1 to the bent body 2 and extend out of the nozzle of the bent body 2, and materials blocked at the nozzle of the bent body 2 are pushed out. The groove on the needle point 6 can push the dirt, the dirt is clamped at the groove, and the dirt is ejected out of the nozzle of the bending body 2.

When the electromagnet 7 is powered on, the electromagnet 7 has magnetism, the iron partition plate 9 is attracted along the thimble containing tube 1 by magnetic force, the return spring 8 is compressed, and the thimble 10 is retracted into the thimble containing tube 1 under the driving of the iron partition plate 9, so that the return is completed.

Example 2

A3D printing pen point capable of being dredged is basically the same as the structure of the embodiment 1, and is different from the structure in that: the structure of the thimble 10 and the pushing assembly is different.

Referring to fig. 4, the thimble 10 passes through the top end of the thimble accommodating tube 1 and is located in the thimble accommodating tube 1, and the top end of the thimble 10 is provided with: a push plate 11.

Referring to fig. 4, the pushing assembly comprises: a thimble return spring 12, an upper limit plate 13 and a lower limit plate 14. The thimble return spring 12 is disposed in the thimble receiving tube 1 and is sleeved on the thimble 10. The upper limiting plate 13 is fixed on the circumference of the thimble 10 and above the thimble return spring 12. The lower limit plate 14 is fixed to the inner wall circumference of the thimble-receiving cylinder 1 and is located below the thimble return spring 12.

The application method of the 3D printing pen nib capable of being dredged in this embodiment 2 specifically includes the following steps:

and when the pen head of the 3D printing pen stops working, the material is drawn out from the printing pen. The push plate 11 is pressed to move the thimble 10 downwards along the thimble containing barrel 1, the thimble 10 drives the upper limiting plate 13 to move downwards, the thimble return spring 12 is compressed, the thimble 10 extends from the thimble containing barrel 1 to the bent body 2 and extends out from the spout of the bent body 2, and the material blocked at the spout of the bent body 2 is pushed out.

The push plate 11 is loosened, and the upper limit plate 13 and the thimble 10 are driven to move upwards under the action of the elasticity of the thimble return spring 12, so that the return is completed.

While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.

Claims

1. The utility model provides a 3D printing pen nib that can dredge, this nib is fixed at the tip of 3D printing pen, its characterized in that, this nib contains:

the bending body (2) is fixed at the end part of the 3D printing pen at one end, has a bending structure, is internally provided with a cavity, is communicated with the 3D printing pen, and is contracted from the end part of the 3D printing pen to the other end thereof;

the thimble containing barrel (1) is fixed on the side wall of the bending body (2), is communicated with the bending body (2), forms an angle with the bending body (2), and has the axial direction consistent with the direction of the other end of the bending body (2);

a thimble (10) in the thimble receiving cylinder (1); and

and the pushing assembly is arranged in the thimble accommodating cylinder (1) and is used for pushing the thimble (10) to extend out or retract from the other end of the bending body (2) along the thimble accommodating cylinder (1).

2. The uncloggable 3D printing pen nib according to claim 1, wherein the pushing assembly comprises:

the electromagnet (7) is fixed at the top end in the thimble receiving cylinder (1), and the positive and negative poles of the coil of the electromagnet are electrically connected with a power supply or the power supply of the printing pen;

the reset spring (8) is sleeved on the electromagnet (7), and one end of the reset spring is fixedly connected with the top end in the thimble receiving cylinder (1); and

and the iron partition plate (9) is positioned in the thimble containing barrel (1), is positioned below the electromagnet (7), is fixedly connected with the other end of the return spring (8), and is fixedly connected with the top end of the thimble (10).

3. The unclogged 3D printing pen nib according to claim 1, wherein the thimble (10) passes through the top end of the thimble receiving cylinder (1) and is located in the thimble receiving cylinder (1), and the top end of the thimble (10) is provided with: a push plate (11);

the pushing assembly includes:

the thimble return spring (12) is positioned in the thimble receiving cylinder (1) and sleeved on the thimble (10);

an upper limit plate (13) fixed in the circumferential direction of the thimble (10) and located above the thimble return spring (12); and a lower limit plate (14) which is fixed on the circumferential direction of the inner wall of the thimble receiving cylinder (1) and is positioned below the thimble return spring (12).

4. The uncloggable 3D printing pen nib according to claim 1, characterized in that the bottom end of the ejector pin (10) is provided with: the needle point (6) is provided with a groove.

5. The unclogged 3D printing pen point according to claim 1, characterized in that the thimble containing cylinder (1) has a circumferential inner wall with: the ejector pin (10) penetrates through the baffle (4).

6. The unclogged 3D printing pen point according to claim 5, characterized in that the contact part of the baffle (4) and the thimble (10) is provided with: a seal ring (5).