Anti-collision printing nozzle structure for 3D printer

Abstract

The utility model relates to the technical field of 3D printing nozzles, in particular to an anti-collision printing nozzle structure for a 3D printer, which comprises a mounting bearing part, a buffer guide assembly, a nozzle mounting part, a radiator, a heating module and a printing nozzle, buffering guide assemblies are installed on the two sides of the upper portion of the installation bearing part, vertical sliding rails are installed on the inner side face of the installation bearing part, and the inner side of the spray head installation part is clamped on the vertical sliding rails and makes sliding contact with the sliding rails. In the printing process, when the printing nozzle collides with a printed product or a spray head, the buffer spring in the buffer guide assembly can effectively buffer the spray head mounting part upwards, so that hard collision between the printing spray head and the printed product or the printing spray head is avoided, and the operation safety of the printing spray head is effectively guaranteed; and the service life of the printing nozzle is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D printing nozzle technical field especially is related to a kind of anti-collision printing nozzle structure for 3D printer. BACKGROUND

[0002] The present stage 3D printer is used to manufacture sample, it is using powdery metal or plastic etc. Adhesive material, by one layer after another multi-layer printing mode, constructs zero object, it is more widely used in mould manufacturing, industrial design, build model etc., some high-value applications (such as hip joint or tooth, or aircraft parts) have printed and formed parts appear. 3D printer when carrying out product printing operation, need to be sprayed and accumulated on printing platform by printing nozzle after consumable heating and melting, existing, printing nozzle is fixedly installed on nozzle mounting frame, when using, nozzle nozzle often collides with printing product or printing platform, not only cause the damage of printing product or printing platform, but also, printing nozzle itself is damaged, and then affect the normal use of 3D printer. SUMMARY

[0003] The utility model aims at providing a kind of anti-collision printing nozzle structure for 3D printer, the whole design scientific of the nozzle structure, when installing and using, printing nozzle can be prevented from colliding and buffering, avoid printing nozzle and printing product or printing nozzle appear rigid collision, guarantee the job safety of printing nozzle.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A kind of anti-collision printing nozzle structure for 3D printer, including, installation bearing part, buffer guide joint, nozzle mounting part, radiator, heating module and printing nozzle;The outside of the installation bearing part is engaged on the outer beam guide rail;Buffer guide joint is installed on the upper portion of installation bearing part both sides, vertical slide rail is installed on the inner side surface position of installation bearing part, the inside of the nozzle mounting part is engaged on vertical slide rail and is in sliding contact with slide rail;The upper portion of the nozzle mounting part is in elastic contact with buffer guide joint;Radiator is installed on the outside of nozzle mounting part, heating module is provided on the lower side of radiator, and the printing nozzle is installed on the bottom side position of heating module for printing material ejection.

[0006] The installation bearing part includes, horizontal sliding block, fixed plate and limit block, the horizontal sliding block is engaged on the outer beam guide rail;Fixed plate is installed on horizontal sliding block and is fixedly connected with horizontal sliding block, limit block is installed on the inner side lower portion of fixed plate, and the limit block is fixedly connected with fixed plate.

[0007] The buffer guide assembly includes an inner baffle, an outer baffle, a mounting plate, and a buffer spring. The inner baffle and outer baffle are installed on the lower sides of the mounting plate and are fixedly connected to the mounting plate. The mounting plate is installed on the top of the fixed plate by bolts. The buffer spring is installed on the inner baffle to provide elastic buffering for the nozzle mounting part.

[0008] Furthermore, an opening slot with a bottom opening is provided on the inner baffle, and the buffer spring is installed in the opening slot.

[0009] The nozzle mounting part includes a movable frame, a fall arrestor, a vertical slider, and a main support frame; the vertical slider is slidably engaged with a vertical slide rail; the movable frame is fixedly installed on the vertical slider, and the fall arrestor is fixedly installed on the lower side of the movable frame, the fall arrestor being correspondingly arranged with a limit block; the main support frame is installed on the movable frame and connected to the movable frame by bolts.

[0010] Furthermore, a push arm is provided at the top of the movable frame, one side of which is connected to the bottom of the buffer spring, and the other side of which is fixedly connected to the movable frame.

[0011] The beneficial effects of this utility model are as follows: The overall structural design of the anti-collision printhead structure for 3D printers is scientific, and the operation is simple and convenient. In the specific installation and use process, this utility model can achieve the buffering effect on the printhead through the coordinated operation of components such as the mounting bearing part, the buffer guide assembly, and the printhead mounting part. Specifically, during the printing process, when the printhead collides with the printed product or printhead, the buffer spring in the buffer guide assembly can effectively buffer the printhead mounting part upwards, thereby avoiding hard collisions between the printhead and the printed product or printhead, effectively ensuring the operational safety of the printhead and improving the service life of the printhead. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the assembly structure of the anti-collision printing nozzle structure of this utility model;

[0013] Figure 2 This is a structural schematic diagram of the mounting support part in this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the buffer guide assembly in this utility model;

[0015] Figure 4 This is a schematic diagram of the nozzle mounting part in this utility model;

[0016] The numbers in the diagram are: 1- Mounting support, 2- Buffer guide assembly, 3- Nozzle mounting, 4- Radiator, 5- Heating module, 6- Printing nozzle, 11- Horizontal slider, 12- Fixing plate, 13- Limiting block, 21- Inner baffle, 22- Outer baffle, 23- Mounting plate, 24- Buffer spring, 25- Opening slot, 31- Movable frame, 32- Anti-fall frame, 33- Vertical slider, 34- Main support frame, 35- Push arm. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly or indirectly connected to the other element. When an element is referred to as "connected to" another element, it can be directly or indirectly connected to the other element. The terms "left" and "right" used in this application to indicate orientation are based on the specific structure shown in the accompanying drawings and do not constitute a limitation on the structure.

[0018] Specific Implementation Example 1: As per the attached instruction manual Figure 1 As shown, the present invention provides an anti-collision printhead structure for a 3D printer, mainly comprising: a mounting support 1, a buffer guide assembly 2, a printhead mounting part 3, a heat sink 4, a heating module 5, and a printhead nozzle 6; wherein, the mounting support 1 is used to mount and support the buffer guide assembly 2; during installation, the outer side of the mounting support 1 is engaged with an external crossbeam guide rail; buffer guide assemblies 2 are installed on both sides of the upper part of the mounting support 1, and the buffer guide assemblies 2 are used to provide elastic buffering for the printhead mounting part 3; a vertical slide rail is installed on the inner side of the mounting support 1, and the inner side of the printhead mounting part 3 is engaged with the vertical slide rail and slides in contact with the slide rail; the upper part of the printhead mounting part 3 is in elastic contact with the buffer guide assembly 2; a heat sink 4 is installed on the outer side of the printhead mounting part 3, and a heating module 5 is provided on the lower side of the heat sink 4, and the printhead nozzle 6 is installed on the bottom side of the heating module 5 for ejecting printing material.

[0019] As per the instruction manual Figure 2 As shown, the mounting and supporting part 1 for mounting and supporting the buffer guide assembly 2 includes a transverse slider 11, a fixed plate 12, and a limiting block 13. The slider is used to support the fixed plate 12. During installation, the transverse slider 11 is engaged with the external crossbeam guide rail. The fixed plate 12 is mounted on the transverse slider 11 and is fixedly connected to the transverse slider 11. A limiting block 13 for limiting the fall arrestor 32 is installed on the lower inner side of the fixed plate 12. The limiting block 13 is fixedly connected to the fixed plate 12.

[0020] As per the instruction manual Figure 3As shown, the buffer guide assembly 2 for elastically buffering the nozzle mounting part 3 includes an inner baffle 21, an outer baffle 22, a mounting plate 23, and a buffer spring 24. The inner baffle 21 and the outer baffle 22 are installed on the lower sides of the mounting plate 23 and are fixedly connected to the mounting plate 23. The mounting plate 23 is installed on the top position of the fixing plate 12 by bolts. An opening slot 25 with a bottom opening is provided on the inner baffle 21, and the buffer spring 24 for elastically buffering the nozzle mounting part 3 is installed in the opening slot 25 of the bottom opening on the inner baffle 21.

[0021] As per the instruction manual Figure 4 As shown, the printhead mounting part 3 for mounting and supporting the printhead (nozzle) includes a movable frame 31, a fall arrestor 32, a vertical slider 33, and a main support frame 34. The vertical slider 33 supports the movable frame 31 during installation, and during installation, the vertical slider 33 slides and engages with a vertical slide rail. A movable frame 31 adapted for mounting the main support frame 34 is fixedly mounted on the vertical slider 33. A fall arrestor 32 is fixedly mounted on the lower side of the movable frame 31, and the fall arrestor 32 is correspondingly positioned with a limiting block 13. The main support frame 34, used for mounting the radiator 4, heating module 5, and printhead 6, is mounted on the movable frame 31 and connected to the movable frame 31 by bolts. A push arm 35 is provided at the top of the movable frame 31. One side of the push arm 35 is connected to the bottom of the buffer spring 24, and the other side of the push arm 35 is fixedly connected to the movable frame 31.

[0022] The installation and use process of the anti-collision printhead structure for a 3D printer according to this utility model is as follows:

[0023] I. The installation process is as follows:

[0024] First, the installer can install the mounting support 1. Specifically, the transverse slider 11 can be engaged with the external crossbeam guide rail; the fixing plate 12 is fixedly installed on the transverse slider 11, and a limiting block 13 for limiting the anti-fall frame 32 is fixedly installed on the lower inner side of the fixing plate 12. Then, the buffer guide assembly 2 is installed. During installation, the inner baffle 21 and the outer baffle 22 can be installed on the lower sides of the mounting plate 23; the mounting plate 23 is installed on the top position of the fixing plate 12 with bolts; an opening slot 25 with a bottom opening is opened on the inner baffle 21, and a buffer spring 24 for elastically buffering the nozzle mounting part 3 is installed on the opening slot 25 on the inner baffle 21. The vertical slide rail is installed inside the opening slot 25, and then the vertical slider 33 is engaged on the vertical slide rail. Then the movable frame 31 is installed on the vertical slider 33. The anti-fall frame 32 is fixedly installed on the lower side of the movable frame 31, and the anti-fall frame 32 is correspondingly set with the limit block 13. The main support frame 34 for installing the radiator 4 and the heating module 5 is installed on the anti-fall frame 32. The push arm 35 is installed on the top of the movable frame 31. One side of the push arm 35 is connected to the bottom of the buffer spring 24, and the other side of the push arm 35 is fixedly connected to the movable frame 31. Finally, the radiator 4 and the heating module 5 are installed on the main support frame 34. Thus, the installation process of this utility model is completed.

[0025] During the actual printing process, when the print nozzle 6 touches the printed product or printing platform, the printed product or printing platform exerts an upward reaction force on the print nozzle 6. At this time, the print nozzle 6 transmits the reaction force to the heating module 5. The heating module 5 drives the main support frame 34 to exert an upward force. The main support frame 34 drives the movable frame 31 to move upward on the vertical slide rail via the vertical slider 33. At this time, the movable frame 31 drives the push arm 35 to move upward, and the push arm 35 compresses the buffer spring 24. At this time, the buffer spring 24 in the buffer guide assembly 2 realizes the function of... The buffer clearance of the movable frame 31 avoids collisions between the print nozzle 6 and the printed product or printing platform, effectively ensuring the operational safety of the print head and improving its service life. When the print nozzle 6 moves away from an obstacle, the buffer spring 24 resets and pushes the push arm 35 to move the movable frame 31 downward. The movable frame 31 then moves the main support frame 34 and the radiator 4 and heating module 5 mounted on it, connected to the print nozzle 6, downward until the anti-fall frame 32 in the movable frame 31 contacts the limit block 13. At this point, the print nozzle 6 resets, and the next printing operation can begin. The above describes the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A collision-proof print head structure for a 3D printer, characterized in that, It includes installation bearing part (1), buffer guide joint (2), nozzle installation part (3), radiator (4), heating module (5) and printing nozzle (6), the outside of installation bearing part (1) is engaged on the outside beam guide rail, the buffer guide joint (2) is installed on the upper part of installation bearing part (1) both sides, vertical slide rail is installed on the inner side surface position of installation bearing part (1), the inside of nozzle installation part (3) is engaged on vertical slide rail and is in sliding contact with slide rail, the upper part of nozzle installation part (3) is in elastic contact with buffer guide joint (2), radiator (4) is installed on the outside of nozzle installation part (3), heating module (5) is provided on the lower side of radiator (4), printing nozzle (6) is installed on the bottom side position of heating module (5) for printing material ejection.

2. The anti-collision printing nozzle structure for 3D printer according to claim 1, wherein, The installation bearing part (1) includes horizontal slide block (11), fixed plate (12) and limit block (13), the horizontal slide block (11) is engaged on the outside beam guide rail, the fixed plate (12) is installed on the horizontal slide block (11), and the limit block (13) is installed on the inner side lower part of the fixed plate (12), and the limit block (13) is fixedly connected with the fixed plate (12).

3. The anti-collision printing nozzle structure for 3D printer according to claim 1, wherein, The buffer guide joint (2) includes inner baffle (21), outer baffle (22), mounting plate (23) and buffer spring (24), the inner baffle (21) and the outer baffle (22) are installed on the lower part both sides of the mounting plate (23), the mounting plate (23) is installed on the top position of the fixed plate (12) through bolts, and the buffer spring (24) is installed on the inner baffle (21) for elastic buffering to the nozzle installation part (3).

4. The anti-collision printing head structure for 3D printer according to claim 3, wherein, An open slot (25) with bottom opening is formed in the inner baffle (21), and the buffer spring (24) is installed in the open slot (25).

5. The anti-collision printing head structure for 3D printer according to claim 4, wherein, The nozzle installation part (3) includes movable frame (31), anti-falling frame (32), vertical slide block (33) and main bearing frame (34), the vertical slide block (33) is slidably engaged on the vertical slide rail, the movable frame (31) is fixedly installed on the vertical slide block (33), the anti-falling frame (32) is fixedly installed on the lower side of the movable frame (31), and the anti-falling frame (32) is correspondingly arranged with the limit block (13), and the main bearing frame (34) is installed on the movable frame (31).

6. The anti-collision printing head structure for 3D printer according to claim 5, wherein, A push arm (35) is arranged on the top of the movable frame (31), one side of the push arm (35) is connected with the bottom of the buffer spring (24), and the other side of the push arm (35) is fixedly connected with the movable frame (31).

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