Short-range extrusion mounting bracket of 3D printer

Abstract

The utility model discloses a short-range extrusion mounting bracket of a 3D printer, and relates to the technical field of 3D printer equipment. The mounting support body is of an integrated structure and comprises a mounting back plate and fixing arms, the fixing arms are symmetrically arranged at the bottom of the mounting back plate, a [-shaped frame is arranged on the back face of the mounting back plate and comprises two side fixing plates and a bottom plate, and the fixing plates on the two sides and the bottom plate form a [-shaped extruder mounting groove. The fixed arm is arranged on the mounting bracket body and is matched with the printing head, and the extruder mounting groove is formed in the back surface of the mounting bracket body and is matched with the extruder, so that the mounting and the use of a left-hand type or right-hand type extruder can be considered, and the effect of quickly modifying a remote extrusion 3D printer into a short-range extrusion 3D printer in a non-violent manner is realized; and use according to different printing requirements is facilitated.

Description

Technical Field

[0001] The utility model relates to a short-range extrusion mounting bracket for a 3D printer, and relates to the technical field of 3D printer equipment. Background Art

[0002] FDM 3D printers can be divided into short-range extrusion and long-range extrusion according to the installation position of the extruder.

[0003] Remote extrusion is to install the stepper motor and extruder at the end of the X-axis or other fixed position away from the print head. The filament is input to the print head through the material guide tube. Since the extruder is far away from the print head, the length of the filament in the material guide tube is large, so the deformation of the filament is large and the extrusion accuracy is poor. It is only suitable for printing common rigid materials such as PLA and ABS.

[0004] Short-range extrusion is to install the stepper motor and extruder above the print head, and move with the print head when the printer is working. In this solution, the extruder is close to the print head, the material guide tube is shorter, the deformation of the consumables is small, and the extrusion accuracy is high. Therefore, in addition to rigid materials, flexible consumables such as TPU can also be printed.

[0005] The existing 3D printers usually only have the function of long-range or short-range printing and cannot take both into account. Therefore, a mounting bracket is proposed to solve the problems existing in the prior art. Utility Model Content

[0006] The purpose of the utility model is to provide a 3D printer short-range extrusion mounting bracket in view of the defects or shortcomings in the prior art, wherein a fixed arm is arranged on the mounting bracket body to match the print head for mounting, an extruder mounting groove is arranged on the back of the mounting bracket body to match the extruder, and the installation and use of left-handed or right-handed extruders can be taken into account, thereby achieving the effect of quickly and non-violently converting a long-range extrusion 3D printer into a short-range extrusion 3D printer, and facilitating use according to different printing requirements.

[0007] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: it includes an installation bracket body 1, the installation bracket body 1 is an integrated structure, the installation bracket body 1 includes a mounting back plate 1-1, a fixed arm 1-2, the fixed arm 1-2 is symmetrically arranged at the bottom of the mounting back plate 1-1, and a 匚-shaped frame is arranged on the back of the mounting back plate 1-1, the 匚-shaped frame includes two side fixing plates 1-7 and a bottom plate 1-8, and the fixing plates 1-7 on both sides and the bottom plate 1-8 form a 匚-shaped extruder mounting groove.

[0008] Furthermore, a plurality of first special-shaped holes 1-5 are provided on the mounting back plate 1-1.

[0009] Furthermore, the first special-shaped hole 1-5 is an 8-shaped hole, including two circular holes, and the two circular holes are connected with a transition gap in the middle.

[0010] Further, a second special-shaped hole 1-6 is provided on the fixed arm 1-2. The second special-shaped hole 1-6 includes a small circular hole and a large circular hole, and there is a transition gap communicating between the small circular hole and the large circular hole.

[0011] Further, a long hole 1-4 is provided in the middle of the mounting back plate 1-1. The long hole 1-4 is an oval hole.

[0012] Further, a limiting edge 1-9 is provided on the outer side of the fixed arm 1-2. The top of the limiting edge 1-9 is connected to the bottom plate 1-8.

[0013] Further, the middle gap of the fixed arm 1-2 is an avoidance groove 1-3.

[0014] After adopting the above technical solution, the beneficial effect of the present utility model is as follows: A fixed arm is provided on the mounting bracket body for matching installation with the print head. An extruder installation groove is provided on the back of the mounting bracket body for matching with the extruder, and it can accommodate the installation and use of left-handed or right-handed extruders, achieving the effect of quickly and non-violently modifying a remote extrusion 3D printer into a near-range extrusion 3D printer, which is convenient for use according to different printing requirements. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 is the structural schematic diagram of the present utility model;

[0017] Figure 2 is Figure 1 the second-angle view of

[0018] Figure 3 is Figure 1 the third-angle view of

[0019] Figure 4 is Figure 1 the fourth-angle view of

[0020] Description of the reference numerals: mounting bracket body 1, mounting back plate 1-1, fixed arm 1-2, avoidance groove 1-3, long hole 1-4, first special-shaped hole 1-5, second special-shaped hole 1-6, fixing plate 1-7, bottom plate 1-8, limiting edge 1-9. Detailed Embodiments

[0021] See Figures 1-4 As shown, the technical solution adopted in this specific embodiment is as follows: It includes an installation bracket body 1, and the installation bracket body 1 is an integrated structure. The installation bracket body 1 includes an installation backplate 1-1 and fixed arms 1-2. The fixed arms 1-2 are symmetrically arranged at the bottom of the installation backplate 1-1. A U-shaped frame is arranged on the back of the installation backplate 1-1. The U-shaped frame includes two side fixing plates 1-7 and a bottom plate 1-8. The two side fixing plates 1-7 and the bottom plate 1-8 form a U-shaped extruder installation slot. In this embodiment, the installation bracket body is directly printed by a 3D printer. To enable the remote extruder to be detachably installed above the print head and converted into a short-range one, a U-shaped frame is arranged on the installation bracket body. The extruder is fixed in the U-shaped frame, and the print head is fixed on the two fixed arms, so that the extruder is located above the print head to become a short-range printer, which can print flexible objects. At the same time, the setting of the U-shaped frame also increases the strength of the installation bracket body to ensure the normal use of the equipment. When remote printing is needed again, only need to disassemble and reinstall each component back to its original position, which not only brings convenience to the user, but also saves the use cost.

[0022] More specifically, a number of first special-shaped holes 1-5 are arranged on the installation backplate 1-1. The first special-shaped holes 1-5 are figure-eight holes, including two round holes, and there is a transition gap connecting the two round holes. A second special-shaped hole 1-6 is arranged on the fixed arm 1-2. The second special-shaped hole 1-6 includes a small round hole and a large round hole, and there is a transition gap connecting the small round hole and the large round hole. Since it is formed by 3D printing, the single-hole printing is difficult and the forming rate is low. Therefore, a structure of fusing two holes is adopted, which increases the overall perimeter of the hole, improves the forming efficiency, and different hole positions can be used for fixing if the fixed hole positions on the extruder are different, which increases the convenience of use and improves the practicality of the installation bracket.

[0023] More specifically, a long hole 1-4 is arranged in the middle of the installation backplate 1-1. The long hole 1-4 is an oval hole. In the existing extruder structures, there are those that extrude materials from the left and those from the right. To facilitate adaptation to different structures of extruder mechanisms, the setting of the oval long hole is adopted, and both left-handed or right-handed extruders can be normally installed.

[0024] More specifically, a limiting edge 1-9 is arranged on the outer side of the fixed arm 1-2. The top of the limiting edge 1-9 is connected to the bottom plate 1-8. The setting of the limiting edge is mainly used to match with the original mounting plate of the print head, increase the stability after the print head is installed, and prevent the installation bracket body from shaking during the printing movement.

[0025] More specifically, the middle gap of the fixed arm 1-2 is an avoidance groove 1-3. The setting of the avoidance groove is also to match the installation position of the original print head, facilitating the installation of the mounting bracket body.

[0026] The working principle of the present utility model: The mounting bracket body 1 is formed by 3D printing. When printing flexible consumables, the print head and the extruder are disassembled and removed. The extruder is placed in the extruder installation groove, and the fixing screw is passed through the first special-shaped hole 1-5 to be connected and fixed with the extruder. Multiple round holes can better connect with the extruders at different hole positions. The print head is fixed on the fixed arm 1-2, and the fixing screw is passed through the second special-shaped hole 1-6 to be connected and fixed with the print head. When installing the extruder, whether it is left-handed or right-handed, it can be adapted through the long hole 1-4. After the installation is completed, the printer with remote extrusion is converted into a near-range printer. The entire disassembly and assembly process is simple, without violent disassembly and modification, and does not damage the original equipment, so that it can be conveniently modified and used when there are different printing requirements.

[0027] The above is only used to illustrate the technical solution of the present utility model and not to limit it. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present utility model, as long as they do not depart from the spirit and scope of the technical solution of the present utility model, shall be covered by the scope of the claims of the present utility model.

Claims

1. A 3D printer short-range extrusion mounting bracket, characterized in that: It includes an installation bracket body (1), and the installation bracket body (1) is an integrated structure. The installation bracket body (1) includes an installation backboard (1-1) and fixed arms (1-2). The fixed arms (1-2) are symmetrically arranged at the bottom of the installation backboard (1-1). A U-shaped frame is arranged on the back of the installation backboard (1-1). The U-shaped frame includes two side fixing plates (1-7) and a bottom plate (1-8). The two side fixing plates (1-7) and the bottom plate (1-8) form a U-shaped extrusion machine installation groove.

2. A 3D printer short-range extrusion mounting bracket according to claim 1, characterized in that: A number of first special-shaped holes (1-5) are arranged on the installation backboard (1-1).

3. A 3D printer short-range extrusion mounting bracket according to claim 2, characterized in that: The first special-shaped hole (1-5) is an 8-shaped hole, including two round holes, and there is a transition gap connecting the two round holes.

4. A 3D printer short-range extrusion mounting bracket according to claim 1, characterized in that: A second special-shaped hole (1-6) is arranged on the fixed arm (1-2). The second special-shaped hole (1-6) includes a small round hole and a large round hole, and there is a transition gap connecting the small round hole and the large round hole.

5. A 3D printer short-range extrusion mounting bracket according to claim 1, characterized in that: A long hole (1-4) is arranged in the middle of the installation backboard (1-1), and the long hole (1-4) is an oval hole.

6. A 3D printer short-range extrusion mounting bracket according to claim 1, characterized in that: A limiting edge (1-9) is arranged on the outer side of the fixed arm (1-2), and the top of the limiting edge (1-9) is connected to the bottom plate (1-8).

7. A 3D printer short-range extrusion mounting bracket according to claim 1, characterized in that: The middle gap of the fixed arm (1-2) is an avoidance groove (1-3).

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