Anti-blocking ceramic 3D printing extrusion nozzle

Abstract

The utility model relates to the field of ceramic 3D printing, in particular to an anti-blocking ceramic 3D printing extrusion nozzle which comprises an extrusion sleeve. The heating mechanism is arranged outside the extrusion sleeve in a sleeving mode and used for heating, a feeding port is formed in the right side of the extrusion sleeve, a threaded rod is in threaded connection with the periphery of the upper portion of the extrusion sleeve, a small motor is in threaded connection with the upper end of the threaded rod, and a transmission rod is fixedly connected to the output end of the small motor; and the outer part of the transmission rod is fixedly connected with a threaded blade. According to the anti-blocking ceramic 3D printing extrusion spray head, through the arrangement of the fixing sleeve, the spray nozzle and the anti-blocking mechanism, the situation that blocking occurs in the spray nozzle can be avoided, a threaded sleeve in the fixing sleeve is rotated, and after the threaded sleeve is screwed in through threads, an ejection block and a spring are extruded; and after being extruded, the ejector block drives the connecting rod, the connecting column and the anti-blocking rod on the inner side to be inserted into the nozzle, so that blockage in the nozzle is avoided, and raw material conveying is not affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of ceramic 3D printing, and particularly relates to a ceramic 3D printing extrusion nozzle capable of preventing blockage. BACKGROUND

[0002] Ceramic 3D printing technology is a manufacturing method based on digital model files. Its principle is to mix ceramic powder with adhesive, and then print the mixture layer by layer through a printing head. After each layer is printed, post-processing methods such as solidification and sintering are used to obtain the final ceramic part. The ceramic 3D printing extrusion nozzle is a key component in ceramic 3D printing technology, which is responsible for accurately extruding and layering ceramic materials to form the desired ceramic parts.

[0003] After searching, a utility model ceramic 3D printing extrusion nozzle with the publication number CN211137531U is found. It includes a first support rod and a printing nozzle. The upper end of the printing nozzle is fixedly connected with a feeding pipe. The middle part of the feeding pipe is elastically connected with a lock. The outer surface of the feeding pipe is slidingly connected with a lifting frame. The middle part of the lifting frame is provided with a lock hole. The lower end of the lifting frame is fixedly installed with a first movable frame. The lower end of the first movable frame is movably installed with a second movable frame. The inside of the second movable frame is fixedly installed with a transparent shielding cover. The outer surface of the lower end of the second movable frame is movably installed with a movable block and a movable nut between the outer surface of the printing nozzle. The movable nut is located on one side of the movable block. The utility model prevents the printing nozzle from splashing onto other unprinted areas during inkjet printing, facilitates the disassembly and replacement of the printing head, and improves the working efficiency of the equipment.

[0004] The existing ceramic 3D printing extrusion nozzle lacks a blockage prevention design, which can cause blockage during the ceramic 3D printing process. Usually, the material is replaced or the printing is interrupted, which can cause the material to solidify or remain inside the nozzle, thereby causing blockage. The above-mentioned comparative example does not design a related blockage function, but only designs how to facilitate the disassembly or replacement of the staff, so that the nozzle can be disassembled and cleaned again in the case of blockage. This not only is too cumbersome, but also delays the work progress.

[0005] Therefore, it is necessary to invent a ceramic 3D printing extrusion nozzle to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model discloses a purpose lies in providing a kind of anti-blocking ceramic 3D printing extrusion nozzle, by rotating the screw sleeve inside fixed sleeve, when screw sleeve is screwed in, extrusion top block and spring, and top block is driven after extrusion inside connecting rod and connecting column and anti-blocking rod are inserted into nozzle, to avoid causing blockage in nozzle, affect raw material delivery to solve the existing ceramic 3D printing extrusion nozzle in above background technology, lack anti-blocking design, lead to ceramic 3D printing process and easily cause blockage, usually midway material or interrupt printing, it can lead to material solidification or residual in nozzle, to cause the problem of blockage.

[0007] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: an anti-blocking ceramic 3D printing extrusion nozzle, comprising an extrusion sleeve;

[0008] A heating mechanism is sleeved outside the extrusion sleeve for heating. A feed inlet is formed in the right side of the extrusion sleeve. A threaded rod is threadedly connected around the upper side of the extrusion sleeve. A small motor is threadedly connected to the upper end of the threaded rod. A transmission rod is fixedly connected to the output end of the small motor. A threaded blade is fixedly connected to the outside of the transmission rod. A fixed sleeve is fixedly connected to the lower side of the extrusion sleeve. A nozzle is fixedly connected to the lower side of the fixed sleeve.

[0009] An anti-blocking mechanism is arranged inside the fixed sleeve for preventing blockage. The anti-blocking mechanism comprises a threaded groove, a threaded sleeve, and an anti-blocking rod.

[0010] Preferably, the heating mechanism comprises a jacket. The jacket is sleeved outside the extrusion sleeve. Bolts are threadedly penetrated through the right side of the jacket. Heating elements are arranged inside the jacket.

[0011] Preferably, the size of the threaded blade is consistent with the size of the inner wall of the extrusion sleeve. The threaded blade is rotationally connected to the extrusion sleeve.

[0012] Preferably, the threaded groove is formed in the inside of the fixed sleeve. A spring is fixedly connected to the inside of the threaded groove. A top block is fixedly connected to the upper end of the spring.

[0013] Preferably, connecting rods are fixedly connected to the inner wall of the top block on both sides. A connecting column is fixedly connected to one end of the connecting rod. The anti-blocking rod is fixedly connected to the lower end of the connecting column.

[0014] Preferably, a stop block is fixedly connected to the lower side of the connecting rod. The stop block is tightly attached to the inner wall of the fixed sleeve.

[0015] In the above technical solution, the utility model provides technical effects and advantages:

[0016] 1. By setting the fixed sleeve, nozzle and anti-blocking mechanism, the situation of blockage in the nozzle can be avoided, by rotating the threaded sleeve inside the fixed sleeve, when the threaded sleeve is screwed in, the spring is extruded, and the top block is extruded, the connecting rod inside the top block is driven to insert the connecting column and the anti-blocking rod into the nozzle, so as to avoid the blockage in the nozzle, which affects the conveying of raw materials;

[0017] 2. By setting the heating mechanism, small motor, transmission rod and threaded blade, the raw materials can be heated during the extrusion process, so as to avoid the solidification of the raw materials. The heating element inside the jacket outside the extrusion sleeve is used to heat the raw materials inside the extrusion sleeve. The small motor drives the transmission rod and the threaded blade to rotate, so that the ceramic slurry is more smooth during the extrusion process, the resistance and fluctuation during the extrusion are reduced, so as to improve the printing precision and stability, and also avoid the blockage. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0019] Figure 1 It is a whole structure schematic view of the utility model;

[0020] Figure 2 It is a heating mechanism structure schematic view of the utility model;

[0021] Figure 3 It is an extrusion sleeve structure schematic view of the utility model;

[0022] Figure 4 It is a threaded blade structure schematic view of the utility model;

[0023] Figure 5 It is an anti-blocking mechanism structure schematic view of the utility model.

[0024] Explanation of the drawings:

[0025] 1, extrusion sleeve; 2, feed inlet; 3, heating mechanism; 301, jacket; 302, bolt; 303, heating element; 4, threaded rod; 5, small motor; 6, transmission rod; 7, threaded blade; 8, fixed sleeve; 9, nozzle; 10, anti-blocking mechanism; 1001, threaded groove; 1002, threaded sleeve; 1003, spring; 1004, top block; 1005, connecting rod; 1006, stop block; 1007, connecting column; 1008, anti-blocking rod. DETAILED DESCRIPTION

[0026] In order to make the technical scheme of the utility model better understood by the skilled in the art, the utility model will be further described in detail below in combination with the drawings.

[0027] The utility model provides a kind of anti-blocking ceramic 3D printing extrusion nozzle as Figures 1-5 As shown in a kind of anti-blocking ceramic 3D printing extrusion nozzle, including extrusion cover 1;

[0028] Heating mechanism 3, cover is set in the outside of extrusion cover 1, for heating, the right side of extrusion cover 1 is equipped with feed inlet 2, the upper portion of extrusion cover 1 is screw-threaded with threaded rod 4, the upper end of threaded rod 4 is screw-threaded with small motor 5, the output of small motor 5 is fixedly connected with transmission rod 6, the outside of transmission rod 6 is fixedly connected with screw blade 7, the lower portion of extrusion cover 1 is fixedly connected with fixed cover 8, the lower portion of fixed cover 8 is fixedly connected with nozzle 9;

[0029] Anti-blocking mechanism 10 is arranged in the inside of fixed cover 8, for anti-blocking, anti-blocking mechanism 10 includes thread groove 1001, threaded sleeve 1002 and anti-blocking rod 1008, by rotating threaded sleeve 1002 in the inside of fixed cover 8, when threaded sleeve 1002 is screwed in, after extrusion top block 1004 and spring 1003, and top block 1004 is extruded and drives the inside connecting rod 1005 and connecting column 1007 and anti-blocking rod 1008 are inserted into nozzle 9, to avoid the blockage in nozzle 9, affect raw material conveying.

[0030] As shown in Figure 1 And Figure 2 Heating mechanism 3 includes jacket 301, jacket 301 is cover set in the outside of extrusion cover 1, the right side of jacket 301 is screw-threaded with bolt 302, the inside of jacket 301 is provided with heating element 303, by jacket 301 cover set in the outside of extrusion cover 1 and the inside setting heating element 303, the raw material in the inside of extrusion cover 1 is heated and handled, to make its raw material melt.

[0031] As shown in Figure 3 The size of screw blade 7 is consistent with the size of the inner wall of extrusion cover 1, screw blade 7 is rotationally connected with extrusion cover 1, small motor 5 drives transmission rod 6 and screw blade 7 to rotate, so that ceramic slurry is more smooth in extrusion process, reduce the resistance and fluctuation when extruding, to improve the precision and stability of printing, also avoid the situation of blocking.

[0032] As shown in Figure 1 、 Figure 3 And Figure 4As shown, the thread groove 1001 is provided in the inner side of the fixed sleeve 8, the inside of the thread groove 1001 is fixedly connected with the spring 1003, the upper end of the spring 1003 is fixedly connected with the top block 1004, by rotating the thread sleeve 1002 inside the fixed sleeve 8, the thread sleeve 1002 extrudes the top block 1004 and the spring 1003 below, so that the anti-blocking rod 1008 inside the top block 1004 is driven to stretch and retract, the anti-blocking rod 1008 is inserted into the nozzle 9 in the stretching and retracting process, avoiding the internal nozzle 9 from being blocked.

[0033] As shown in the figure, Figure 4 The inner wall of the top block 1004 is fixedly connected with the connecting rod 1005, one end of the connecting rod 1005 is fixedly connected with the connecting column 1007, the anti-blocking rod 1008 is fixedly connected to the lower end of the connecting column 1007, after the top block 1004 is extruded by the thread sleeve 1002, the connecting rod 1005 and the anti-blocking rod 1008 inside the top block 1004 are pushed to move, so that the anti-blocking rod 1008 is inserted into the nozzle 9, and the blocked ceramic raw materials in the nozzle 9 are pushed out.

[0034] As shown in the figure, Figure 4 The lower side of the connecting rod 1005 is fixedly connected with the stop block 1006, the stop block 1006 is tightly attached to the inner wall of the fixed sleeve 8, a sliding groove is provided in the inside of the fixed sleeve 8, and the connecting rod 1005 moves in the sliding groove, avoiding the ceramic raw materials inside from entering the sliding groove, and the stop block 1006 can effectively block the ceramic raw materials from entering the sliding groove, affecting the stretching and retracting movement of the connecting rod 1005.

[0035] The utility model working principle: firstly, the whole extrusion sleeve 1 is installed on the ceramic 3D printing, then the external power supply is connected, the pipeline conveying ceramic raw materials is connected on the feed port 2 right side of the extrusion sleeve 1, when needing to print extrusion ceramic raw materials, the ceramic raw materials are conveyed to the feed port 2 through the conveying pipeline, then the small motor 5 switch on the extrusion sleeve 1 top is opened, the transmission rod 6 and the thread blade 7 are rotated, so that the ceramic raw materials inside are pushed out from the nozzle 9, so as to carry out ceramic 3D printing, when stopping printing halfway, when the ceramic raw materials inside the extrusion sleeve 1 solidify, the heating element 303 switch in the jacket 301 is opened, the ceramic raw materials inside the extrusion sleeve 1 are heated to melt, so as to avoid the solidification, when the nozzle 9 is blocked, by rotating the thread sleeve 1002 inside the fixed sleeve 8, when the thread sleeve 1002 is screwed in, the top block 1004 and the spring 1003 are extruded, and the connecting rod 1005, the connecting column 1007 and the anti-blocking rod 1008 inside the top block 1004 are driven to insert into the nozzle 9 after being extruded, so that the blocked raw materials in the nozzle 9 are pushed out, avoiding affecting the raw material conveying, then the ceramic 3D printing can be continued, and the use process of the anti-blocking ceramic 3D printing extrusion nozzle is completed.

[0036] The above has only described certain exemplary embodiments of the present application by way of illustration, and it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and descriptions are illustrative in nature, and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A clog resistant ceramic 3D printing extrusion nozzle characterized by: The utility model provides an extrusion sleeve (1) is provided with a heating mechanism (3) and a anti -blocking mechanism (10), the heating mechanism (3) is arranged in the extrusion sleeve (1) outside, is used for heating, the right side of the extrusion sleeve (1) is equipped with the feed inlet (2), the upper around of the extrusion sleeve (1) is connected with the threaded rod (4) with screw thread, the upper end of the threaded rod (4) is connected with the small -size motor (5) with screw thread, the output of the small -size motor (5) is fixedly connected with the transmission rod (6), the outside fixed connection of the transmission rod (6) is equipped with the threaded vane (7), the lower fixed connection of the extrusion sleeve (1) is equipped with the fixed sleeve (8), the lower fixed connection of the fixed sleeve (8) is equipped with the nozzle (9). The utility model provides an extrusion sleeve (1) is provided with a heating mechanism (3) and a anti -blocking mechanism (10), the heating mechanism (3) is arranged in the extrusion sleeve (1) outside, is used for heating, the right side of the extrusion sleeve (1) is equipped with the feed inlet (2), the upper around of the extrusion sleeve (1) is connected with the threaded rod (4) with screw thread, the upper end of the threaded rod (4) is connected with the small -size motor (5) with screw thread, the output of the small -size motor (5) is fixedly connected with the transmission rod (6), the outside fixed connection of the transmission rod (6) is equipped with the threaded vane (7), the lower fixed connection of the extrusion sleeve (1) is equipped with the fixed sleeve (8), the lower fixed connection of the fixed sleeve (8) is equipped with the nozzle (9). The utility model discloses a heating mechanism (3) includes a jacket (301), the jacket (301) is arranged in the extrusion sleeve (1) outside, the right side of the jacket (301) is screwed through the bolt (302), and the inside of the jacket (301) is provided with a heating element (303).

2. A clog resistant ceramic 3D printing extrusion nozzle according to claim 1, characterized in that: The size of the threaded vane (7) is consistent with the size of the inner wall of the extrusion sleeve (1), and the threaded vane (7) is rotatably connected with the extrusion sleeve (1).

3. A clog resistant ceramic 3D printing extrusion nozzle according to claim 1, wherein: The threaded groove (1001) is formed in the inner side of the fixed sleeve (8), the inside of the threaded groove (1001) is fixedly connected with a spring (1003), and the upper end of the spring (1003) is fixedly connected with a top block (1004).

4. A clog resistant ceramic 3D printing extrusion nozzle according to claim 1, wherein: The inner wall of the top block (1004) is fixedly connected with a connecting rod (1005) on both sides, one end of the connecting rod (1005) is fixedly connected with a connecting column (1007), and the anti-blocking rod (1008) is fixedly connected to the lower end of the connecting column (1007).

5. A clog resistant ceramic 3D printing extrusion nozzle according to claim 4, characterized in that: The lower side of the connecting rod (1005) is fixedly connected with a stop block (1006), and the stop block (1006) is tightly attached to the inner wall of the fixed sleeve (8).

6. A clog resistant ceramic 3D printing extrusion nozzle according to claim 5, wherein: ​

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