CN112123772A

CN112123772A - 3D printer is with preventing blockking up with hot type stub bar

Info

Publication number: CN112123772A
Application number: CN202011026076.3A
Authority: CN
Inventors: 刘继舟; 柯尊来
Original assignee: Wuhu Yingluo Intelligent Manufacturing Co ltd
Current assignee: Wuhu Yingluo Intelligent Manufacturing Co ltd
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2020-12-25

Abstract

The invention discloses an anti-blocking heating type discharging head for a 3D printer, which comprises a discharging pipe, a fixed seat and an extruding nozzle, wherein an air inlet pipe is fixedly communicated with one side of the upper end of the discharging pipe; through the design of the air inlet pipe, the high-pressure air pump and the discharge pipe, the air inlet pipe is arranged on one side of the upper part of the discharge pipe, and the raw materials melted in the air inlet pipe and the extrusion nozzle are extruded at high pressure through the high-pressure air pump after the printing state is finished, so that the raw materials in the melted state are prevented from being cooled and solidified in the air inlet pipe and the extrusion nozzle after the printing is finished; in addition, the discharging pipe, the extrusion nozzle and the fixing seat are arranged into a split type thread mounting structure, and the discharging pipe, the extrusion nozzle and the fixing seat can be cleaned inside the component if the blockage situation occurs after printing is finished.

Description

3D printer is with preventing blockking up with hot type stub bar

Technical Field

The invention relates to the technical field of a discharging head of a 3D printer, in particular to an anti-blocking heating type discharging head for the 3D printer.

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. State of the art three-dimensional printers are used to manufacture products. Techniques for building objects in a layer-by-layer printing manner. 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.

The back is melted in heating to the raw and other materials of 3D printer, nevertheless cools off for solid-state after the ejection of compact head heating blowout from the printer, and the temperature of play stub bar can lead to the raw and other materials of the stub bar of leaveing behind the print finishing to solidify, thereby produce the jam in the ejection of compact head, and then influence subsequent print job and lead to printing apparatus to damage, therefore we need propose a 3D printer with preventing blockking up with hot type play stub bar.

Disclosure of Invention

The invention aims to provide an anti-blocking heating type discharging head for a 3D printer, which is characterized in that molten raw materials in an air inlet pipe and an extrusion nozzle are extruded at high pressure through a high-pressure air pump after the printing state is finished, so that the molten raw materials are prevented from being cooled and solidified in the air inlet pipe and the extrusion nozzle after the printing is finished; in addition, the discharging pipe, the extruding nozzle and the fixing seat are arranged into a split type thread mounting structure, and the discharging pipe, the extruding nozzle and the fixing seat can be cleaned inside the component if the blockage situation occurs after printing is finished, so that the problem in the background technology is solved.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a 3D printer is with preventing blockking up with hot type stub bar, includes discharging pipe, fixing base and extrusion nozzle, upper end one side intercommunication of discharging pipe is fixed with the intake pipe, the discharging pipe is fixed in high compression pump through the intake pipe intercommunication, the fixed heat conduction cover that has cup jointed in the outside of discharging pipe, the fixed grafting in both ends in the heat conduction cover has the hot plate.

The inside of fixing base is provided with the intercommunication chamber, internal thread portion has all been seted up to the upper and lower part of fixing base, first external screw thread portion has been seted up to the bottom of discharging pipe, second external screw thread portion has been seted up on the upper portion of extrusion mouth, the discharge tube is fixed on the upper portion of fixing base through first external screw thread portion and internal thread portion intercommunication, the extrusion mouth passes through second external screw thread portion and internal thread portion intercommunication and fixes the lower part at the fixing base.

Preferably, the discharge pipe is communicated and fixed on the gear pump, and the high-pressure air pump is provided with an electromagnetic valve.

Preferably, the upper part of the fixing seat is provided with symmetrically arranged insertion grooves, and the heating plate is inserted and installed in the insertion grooves.

Preferably, the lateral part fixedly connected with radiating piece of heat conduction cover, the lateral part of radiating piece and the equal fixedly connected with fixed block of lateral part of fixing base, threaded mounting has fixing bolt on the fixed block.

Preferably, the bottom of the fixing seat is provided with an assembly groove, the side part of the fixing seat is provided with threaded through holes which are symmetrically arranged, and one end of each threaded through hole is located in the assembly groove.

Preferably, a locking screw is installed in the threaded through hole in a threaded manner, a cushion block is fixedly connected to the end portion of the locking screw, and the cushion block abuts against the side portion of the extrusion nozzle.

Preferably, the upper part of the heat conduction sleeve is fixedly provided with a temperature controller, and the signal output end of the temperature controller is electrically connected to the electric control end of the heating plate.

Preferably, the heat dissipation member is an aluminum profile fin type heat dissipation member.

Compared with the prior art, the invention has the beneficial effects that:

through the design of the air inlet pipe, the high-pressure air pump and the discharge pipe, the air inlet pipe is arranged on one side of the upper part of the discharge pipe, and the raw materials melted in the air inlet pipe and the extrusion nozzle are extruded at high pressure through the high-pressure air pump after the printing state is finished, so that the raw materials in the melted state are prevented from being cooled and solidified in the air inlet pipe and the extrusion nozzle after the printing is finished; in addition, the discharging pipe, the extrusion nozzle and the fixing seat are arranged into a split type thread mounting structure, and the discharging pipe, the extrusion nozzle and the fixing seat can be cleaned inside the component if the blockage situation occurs after printing is finished.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the fixing base of the present invention;

FIG. 4 is a bottom view of the fixing base of the present invention.

In the figure: 1. a discharge pipe; 2. a temperature controller; 3. locking the screw rod; 4. a gear pump; 5. an air inlet pipe; 6. an electromagnetic valve; 7. a high pressure air pump; 8. assembling a groove; 9. a fixed block; 10. fixing the bolt; 11. a heat sink; 12. an extrusion nozzle; 13. a fixed seat; 14. a heat conducting sleeve; 15. heating plates; 16. a communicating cavity; 17. a first external threaded portion; 18. a threaded through hole; 19. a second external thread portion; 20. cushion blocks; 21. and (4) inserting grooves.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a 3D printer is with preventing blockking up with hot type stub bar, includes discharging pipe 1, fixing base 13 and extrusion nozzle 12, and the upper end one side intercommunication of discharging pipe 1 is fixed with intake pipe 5, and discharging pipe 1 is fixed in high compression pump 7 through the intake pipe 5 intercommunication, and the fixed thermal conductivity cover 14 that has cup jointed in the outside of discharging pipe 1, and the both ends in the thermal conductivity cover 14 are fixed to be pegged graft and are had hot plate 15.

The inside of fixing base 13 is provided with intercommunication chamber 16, and the internal thread portion has all been seted up to the upper and lower part of fixing base 13, and first external screw thread portion 17 has been seted up to the bottom of discharging pipe 1, and second external screw thread portion 19 has been seted up on the upper portion of extrusion nozzle 12, and discharging pipe 1 is fixed on the upper portion of fixing base 13 through first external screw thread portion 17 and internal thread portion intercommunication, and extrusion nozzle 12 is fixed in the lower part of fixing base 13 through second external screw thread portion 19 and internal thread portion intercommunication.

1 intercommunication of discharging pipe is fixed in gear pump 4, be provided with solenoid valve 6 on the high pressure air pump 7, solenoid valve 6 controls high pressure air pump 7, the inserting groove 21 that is the symmetry and sets up is seted up on the upper portion of fixing base 13, the hot plate 15 is pegged graft and is installed in inserting groove 21, the lateral part fixedly connected with radiating piece 11 of heat conduction cover 14, the lateral part of radiating piece 11 and the equal fixedly connected with fixed block 9 of lateral part of fixing base 13, threaded mounting has fixing bolt 10 on the fixed block 9, assembly groove 8 has been seted up to the bottom of fixing base 13, the screw thread through-hole 18 that is the symmetry and sets up is seted up to the lateral part of fixing base.

Locking screw 3 is installed to the screw thread in the screw thread through-hole 18, locking screw 3's tip fixedly connected with cushion 20, cushion 20 supports tightly in the lateral part of extrusion mouth 12, cushion 20 sets up to the resin plastics cushion, thereby locking screw 3's tip supports tightly to carrying out spacing installation to extrusion mouth 12 from the lateral part of extrusion mouth 12 through cushion 20, the upper portion fixed mounting of heat conduction cover 14 has temperature controller 2, the signal output part electric connection of temperature controller 2 is in the automatically controlled end of hot plate 15, heat dissipation member 11 sets up to aluminium alloy fin formula heat dissipation member, aluminium alloy fin formula heat dissipation member can be at discharging pipe 1, the supplementary stub bar of the state of melting is got rid of in extrusion mouth 12 and the fixing base 13 and is cooled passively.

The working principle is as follows: when the automatic discharging device is used specifically, the gear pump 4 supplies materials to the discharging pipe, the gear pump 4 stops supplying materials after the printing work is finished, the electromagnetic valve 6 controls the high-pressure air pump 7 to slightly pump air, so that redundant raw materials in a molten state are prevented from flowing out of the extruding nozzle 12, meanwhile, the heating plate 15 continues to heat, the molten state of the raw materials in the discharging pipe 1, the extruding nozzle 12 and the fixing seat 13 is maintained, high-pressure air is injected into the discharging pipe 1 through the high-pressure air pump 7 after the discharging pipe is moved away from the printing position, so that residual raw materials in the molten state in the discharging pipe 1, the extruding nozzle 12 and the fixing seat 13 are removed, and the blocking condition is prevented; if the raw materials in a partially molten state are still solidified in the discharge pipe 1, the extrusion nozzle 12 and the fixed seat 13, the discharge pipe 1, the extrusion nozzle 12 and the fixed seat 13 are disassembled through the threaded mounting structure, and the interior of the element can be cleaned and maintained;

according to the device, through the design of the air inlet pipe 5, the high-pressure air pump 7 and the discharge pipe 1, the air inlet pipe 5 is arranged on one side of the upper part of the discharge pipe 1, and raw materials melted in the air inlet pipe 5 and the extrusion nozzle 12 are extruded at high pressure through the high-pressure air pump 7 after the printing state is finished, so that the raw materials in the melted state are prevented from being solidified due to cooling in the air inlet pipe 5 and the extrusion nozzle 12 after the printing is finished; in addition, the discharging pipe 1, the extruding nozzle 12 and the fixing seat 13 are arranged to be of a split type thread mounting structure, the interior of the component can be cleaned by the discharging pipe 1, the extruding nozzle 12 and the fixing seat 13 if the blockage situation occurs after printing is finished, and therefore the discharging pipe 1, the extruding nozzle 12 and the fixing seat 13 are disassembled and maintained.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a 3D printer is with preventing blockking up with hot type stub bar, includes discharging pipe (1), fixing base (13) and extrusion nozzle (12), its characterized in that: an air inlet pipe (5) is fixedly communicated with one side of the upper end of the discharge pipe (1), the discharge pipe (1) is fixedly communicated with a high-pressure air pump (7) through the air inlet pipe (5), a heat conduction sleeve (14) is fixedly sleeved outside the discharge pipe (1), and heating plates (15) are fixedly inserted into two ends of the heat conduction sleeve (14);

the inside of fixing base (13) is provided with intercommunication chamber (16), internal thread portion has all been seted up to the upper and lower part of fixing base (13), first external screw thread portion (17) have been seted up to the bottom of discharging pipe (1), second external screw thread portion (19) have been seted up on the upper portion of extrusion mouth (12), discharging pipe (1) is fixed on the upper portion of fixing base (13) through first external screw thread portion (17) and internal thread portion intercommunication, extrusion mouth (12) are fixed in the lower part of fixing base (13) through second external screw thread portion (19) and internal thread portion intercommunication.

2. The anti-clogging heating type discharging head for the 3D printer according to claim 1, characterized in that: the discharging pipe (1) is fixedly communicated with the gear pump (4), and the high-pressure air pump (7) is provided with an electromagnetic valve (6).

3. The anti-clogging heating type discharging head for the 3D printer according to claim 1, characterized in that: the upper portion of fixing base (13) is seted up and is the inserting groove (21) that the symmetry set up, hot plate (15) are pegged graft and are installed in inserting groove (21).

4. The anti-clogging heating type discharging head for the 3D printer according to claim 1, characterized in that: the lateral part fixedly connected with radiating piece (11) of heat conduction cover (14), the equal fixedly connected with fixed block (9) of lateral part and the lateral part of fixing base (13) of radiating piece (11), fixing bolt (10) are installed to the screw thread on fixed block (9).

5. The anti-clogging heating type discharging head for the 3D printer according to claim 1, characterized in that: an assembly groove (8) is formed in the bottom of the fixing seat (13), threaded through holes (18) which are symmetrically arranged are formed in the side portion of the fixing seat (13), and one ends of the threaded through holes (18) are located in the assembly groove (8).

6. The anti-clogging heating type discharging head for the 3D printer according to claim 5, characterized in that: and a locking screw (3) is installed in the threaded through hole (18) in a threaded manner, the end part of the locking screw (3) is fixedly connected with a cushion block (20), and the cushion block (20) is abutted against the side part of the extrusion nozzle (12).

7. The anti-clogging heating type discharging head for the 3D printer according to claim 1, characterized in that: the upper portion of heat conduction cover (14) is fixed with temperature controller (2), the signal output part electric connection of temperature controller (2) is in the electric control end of hot plate (15).

8. The anti-clogging heating type discharging head for the 3D printer according to claim 4, characterized in that: the heat dissipation piece (11) is an aluminum profile fin type heat dissipation piece.