3D printer with easy replaceable nozzle

Abstract

The utility model discloses an easily replaceable nozzle's 3D printer is provided with the mobile seat of printer support and printer support assembly, and the mobile seat is through the cooperation of extruding rod, telescopic rod and telescopic component, and effectively controls the position of mobile board, thereby after the replacement of the nozzle component of different size, the center discharge position of nozzle component is controlled, and through the extruding component of mobile board assembly, the position of extruding seat is controlled, thereby the nozzle component is positioned and clamped, and the convenience and stability of clamping are increased.

Description

Technical Field

[0001] This utility model relates to the field of 3D printer technology, specifically a 3D printer with easily replaceable nozzles. Background Technology

[0002] After 3D printers use professional software for modeling, slicing, printing, and post-processing, they can begin printing production. They can also use nozzles to effectively extrude printing materials to produce corresponding products, thus improving the stability of 3D printing production. However, when printing products made of different materials and colors, it is inconvenient to change the nozzles in a timely manner, which can easily cause intermittent color changes in the material and affect the quality of the finished product.

[0003] To overcome the aforementioned shortcomings, existing technology (Chinese patent application CN201922118011.0, filed on 2019-11-29) provides a nozzle replacement mechanism for a 3D printer. This mechanism, through the coordination of the printer body, base plate, nozzle connecting column, nozzle body, sleeve plate, push rod, locking rod, top plate, connecting block, connecting rod, sliding sleeve, moving plate, and positioning rod, allows the locking rod to separate from the nozzle body and the positioning rod from the sleeve plate. The nozzle body can then be removed and replaced, thus facilitating nozzle replacement for the user. This solves the problem of inconvenient nozzle replacement in existing 3D printers. This nozzle replacement mechanism offers the advantage of user-friendly nozzle replacement, eliminating the need for specialized tools to remove bolts, saving significant time and improving the practicality of the 3D printer. While existing technology allows nozzle replacement, during operation, nozzle replacement in different working states can easily cause center displacement, affecting center positioning accuracy and hindering rapid nozzle replacement, thus impacting production efficiency.

[0004] To address the aforementioned issues, there is an urgent need for innovative designs based on existing 3D printers with easily replaceable nozzles. Utility Model Content

[0005] The purpose of this invention is to provide a 3D printer with easily replaceable nozzles, in order to solve the problems mentioned in the background art, which are that during operation, the replacement of nozzles in different working states can easily cause center displacement, affecting the accuracy of center positioning, and making it inconvenient to quickly replace nozzles, thus affecting production efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a 3D printer with easily replaceable nozzles, comprising a printer bracket and a movable base assembled with the printer bracket; including: a bidirectional lead screw, rotatably rotating on the left and right sides of the inner surface of the movable base, and a movable block slidably assembled on the movable base via the bidirectional lead screw thread, and an extrusion rod rotatably connected to the outer surface of the movable block, while a movable plate is rotatably connected to the other end of the outer surface of the extrusion rod; a turntable, rotating in the middle section of the inner surface of the movable plate, and a connecting rod rotatably connected to the outer surface of the turntable, and an extrusion assembly rotatably connected to the end of the outer surface of the connecting rod, while the extrusion assembly is provided with an extrusion locking mechanism.

[0007] Preferably, the movable seat forms a threaded sliding structure with the movable block through a timing belt and a bidirectional lead screw, and the movable block is symmetrically arranged about the middle section of the inner surface of the movable seat, and the movable block forms a compression extension structure with the movable plate through a compression rod.

[0008] Preferably, a telescopic rod is installed on the rear side of the outer surface of the movable plate, and a telescopic assembly is telescopically connected to the outer surface of the telescopic rod. A movable seat is installed on the outer surface of the telescopic assembly. Meanwhile, a positioning block is nested and connected to the inner surface of the movable plate, and a nozzle assembly is installed on the outer surface of the positioning block.

[0009] Preferably, the movable plate forms a limiting telescopic structure with the movable seat through a telescopic rod and a telescopic assembly, and the movable plate forms a positioning and engaging structure with the nozzle assembly through a positioning block.

[0010] Preferably, the moving plate forms a circumferential linear movement structure with the extrusion assembly via a turntable and connecting rod, and the extrusion assembly is symmetrically arranged about the inner surface of the moving plate.

[0011] Preferably, the extrusion locking mechanism further includes an extrusion block installed at the end of the outer surface of the extrusion assembly, and an inclined block is installed on the outer surface of the extrusion block. An extrusion seat is slidably connected to the outer surface of the inclined block, and the extrusion seat is slidably limited on the upper and lower sides of the inner surface of the moving plate. At the same time, a locking member is installed on the outer surface of the extrusion seat, and a nozzle assembly is engagedly connected to the outer surface of the locking member.

[0012] Preferably, the extrusion assembly, the extrusion block, and the inclined block form an integrated structure, and the extrusion block and the inclined block are symmetrically arranged about the middle section of the inner surface of the extrusion assembly. The extrusion block forms an inclined sliding structure with the extrusion seat through the inclined block, while the extrusion seat forms a linear sliding structure with the moving plate. The extrusion seat forms an engaging structure with the nozzle assembly through a locking member.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This 3D printer with easily replaceable nozzles is equipped with a movable base for easy support and adjustment. Through the cooperation of the extrusion rod, telescopic rod and telescopic assembly, the position of the movable plate is effectively controlled. This allows for control of the center discharge position of the nozzle assembly after replacing nozzle assemblies of different sizes. Furthermore, the extrusion assembly assembled on the movable plate controls the position of the extrusion base, thereby limiting and locking the nozzle assembly, increasing the convenience and stability of clamping.

[0014] 2. This 3D printer with easily replaceable nozzles is equipped with a bidirectional lead screw that rotates simultaneously via a synchronous belt on the moving base, which controls the extrusion rod connected to the symmetrically assembled moving blocks on its outer side, thereby controlling the position of the moving plate. Furthermore, the moving plate and the moving base are connected by a telescopic rod and a telescopic assembly for telescopic positioning control, which improves the stability of the moving plate and enhances the support stability during position adjustment after the nozzle assembly is assembled.

[0015] 3. This 3D printer with easily replaceable nozzles is equipped with a rotating turntable inside a moving plate. The control linkage adjusts the vertical sliding of the extrusion assembly within the moving plate. In conjunction with the extrusion block and inclined block assembled on the moving plate, the position of the extrusion block is controlled, thereby controlling the locking mechanism to limit and engage the nozzle assembly, improving the stability of the nozzle assembly assembly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the 3D printer bracket of this utility model; Figure 2 This is a partial cross-sectional three-dimensional structural diagram of the 3D printer bracket of this utility model; Figure 3 This is a half-sectional perspective view of the three-dimensional structure of the movable seat of this utility model; Figure 4 This is a partial cross-sectional perspective view of the three-dimensional structure of the movable plate of this utility model; Figure 5 This is a left-side three-dimensional structural diagram of the movable plate of this utility model; Figure 6 This is a partial cross-sectional three-dimensional structural diagram of the nozzle assembly of this utility model.

[0017] In the diagram: 1. Printer bracket; 2. Movable base; 3. Two-way lead screw; 4. Movable block; 5. Extrusion rod; 6. Movable plate; 7. Telescopic rod; 8. Telescopic assembly; 9. Positioning block; 10. Nozzle assembly; 11. Turntable; 12. Connecting rod; 13. Extrusion assembly; 14. Extrusion block; 15. Inclined block; 16. Extrusion base; 17. Clamping device. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figures 1-6 The present invention provides the following technical solution: a 3D printer with easily replaceable nozzles, which is provided with a printer bracket 1 and a movable base 2 assembled with the printer bracket 1.

[0020] Example 1: As Figures 1-3 The technical solution shown is provided by this utility model as follows: A 3D printer with easily replaceable nozzles, comprising: a bidirectional lead screw 3, rotatably rotating on the left and right sides of the inner surface of a movable base 2, and a movable block 4 slidably assembled on the movable base 2 via the bidirectional lead screw 3; an extrusion rod 5 is rotatably connected to the outer surface of the movable block 4, and a movable plate 6 is rotatably connected to the other end of the outer surface of the extrusion rod 5; please refer to [link to relevant documentation]. Figure 3 and Figure 4 The movable seat 2 forms a threaded sliding structure with the movable block 4 via a timing belt and a bidirectional lead screw 3. The movable block 4 is symmetrically arranged about the middle section of the inner surface of the movable seat 2, and the movable block 4 forms a compression extension structure with the movable plate 6 via a compression rod 5. (See also...) Figure 3 and Figure 4 A telescopic rod 7 is mounted on the rear side of the outer surface of the movable plate 6, and a telescopic assembly 8 is telescopically connected to the outer surface of the telescopic rod 7. A movable seat 2 is mounted on the outer surface of the telescopic assembly 8. Meanwhile, a positioning block 9 is nested and connected to the inner surface of the movable plate 6, and a nozzle assembly 10 is mounted on the outer surface of the positioning block 9. Please refer to [link / reference]. Figure 3 and Figure 4 The movable plate 6 forms a limiting telescopic structure with the movable seat 2 through the telescopic rod 7 and the telescopic component 8, and the movable plate 6 forms a positioning and engaging structure with the nozzle component 10 through the positioning block 9.

[0021] When the nozzle assembly 10 needs to be replaced, the used nozzle assembly 10 is disassembled and a new nozzle assembly 10 is assembled. During the assembly of the nozzle assembly 10, the positioning block 9 installed on the nozzle assembly 10 is stably nested on the moving plate 6, and is positioned and engaged by the pressing and locking mechanism on the moving plate 6. According to the discharge center position of the nozzle assembly 10, the small motor connected to the upper side of the moving seat 2 assembled with the printer bracket 1 is adjusted to rotate the bidirectional lead screw 3. The synchronous belt assembled on the outside of the bidirectional lead screw 3 controls the synchronous rotation of the bidirectional lead screw 3 on both sides, driving the moving block 4 to slide in a limited position on the inner surface of the moving seat 2. The position of the pressing rod 5 and the moving plate 6 are adjusted by rotating the outside of the moving seat 2 to control the distance between the moving plate 6 and the moving seat 2. The telescopic rod 7 and the telescopic component 8, which are controlled by telescopic limit control, control the stability of the telescopic adjustment of the moving plate 6 and the moving seat 2, and control the assembly stability of the nozzle assembly 10.

[0022] Example 2: Figure 5 The technical solution shown, based on Embodiment 1, further discloses a method for controlling the squeezing and engaging mechanism for positioning and assembly when replacing the nozzle assembly 10, improving engagement stability, increasing the stability of the nozzle assembly 10 assembly, preventing detachment, and solving the problem of inconvenient rapid assembly. The specific details are as follows: A turntable 11 rotates at the middle section of the inner surface of the moving plate 6, and a connecting rod 12 is rotatably connected to the outer surface of the turntable 11. A squeezing assembly 13 is rotatably connected to the end of the outer surface of the connecting rod 12, and the squeezing assembly 13 is equipped with a squeezing and engaging mechanism; please refer to... Figure 5 The moving plate 6 forms a circumferential linear movement structure with the extrusion assembly 13 via the turntable 11 and the connecting rod 12, and the extrusion assembly 13 is symmetrically arranged about the inner surface of the moving plate 6.

[0023] The nozzle assembly 10 is positioned and assembled on the moving plate 6 by the positioning block 9. The motor assembled on the outside of the moving plate 6 can be started to control the conveyor shaft to drive the turntable 11 to rotate. This will drive the off-axis assembled on the outside of the turntable 11 to drive the connecting rod 12 to rotate. This controls the stability of the movement of the extrusion assembly 13 by controlling the connecting rod 12, which rotates at an angle about the center of the turntable 11. It also controls the stability of the vertical sliding of the extrusion assembly 13 on the inner surface of the moving plate 6, improves the sliding effect, is used for subsequent extrusion operations, and provides synchronous control for multiple sets of locking mechanisms.

[0024] Example 3: Figure 3 and Figure 6The technical solution shown, based on Embodiment 2, further discloses the stability of the nozzle assembly 10 during engagement and assembly. It allows for simultaneous operation of the engagement mechanisms on both sides and prevents the nozzle assembly 10 from detaching after assembly, solving the problem of effective engagement and positioning of the nozzle assembly 10. The specific details are as follows: The compression engagement mechanism also includes a compression block 14 mounted on the outer surface end of the compression assembly 13, and an inclined block 15 is mounted on the outer surface of the compression block 14. The outer surface of the inclined block 15 is slidably connected to a compression seat 16, which is slidably limited on the inner surface of the moving plate 6. Simultaneously, a locking member 17 is mounted on the outer surface of the compression seat 16, and the outer surface of the locking member 17 is engaged with the nozzle assembly 10. Figure 3 and Figure 6 As shown, the extrusion assembly 13, the extrusion block 14, and the inclined block 15 form an integrated structure. The extrusion block 14 and the inclined block 15 are symmetrically arranged about the middle section of the inner surface of the extrusion assembly 13. The extrusion block 14 forms an inclined sliding structure with the extrusion seat 16 through the inclined block 15. At the same time, the extrusion seat 16 forms a linear sliding structure with the moving plate 6. The extrusion seat 16 forms a locking structure with the nozzle assembly 10 through the locking member 17.

[0025] When the turntable 11 controls the extrusion assembly 13 to move vertically, it will drive the extrusion block 14 assembled by the extrusion assembly 13 to slide vertically in sync. This allows the inclined block 15 and the extrusion seat 16 to slide obliquely and adjust the oblique extrusion between them. This controls the clamping parts 17 installed on the extrusion seat 16 to move laterally to the center or unfold in the moving plate 6. When locking is required, the clamping parts 17 will move to the center and simultaneously drive multiple sets of clamping parts 17 to lock the nozzle assembly 10 stably, thereby improving the assembly stability of the nozzle assembly 10.

[0026] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A 3D printer with an easily replaceable nozzle, comprising a printer stand (1) and a movable base (2) assembled from the printer stand (1). Its features are, include: A two-way lead screw (3) rotates on the left and right sides of the inner surface of the movable seat (2), and the movable seat (2) is threadedly assembled with a movable block (4) through the two-way lead screw (3), and a pressing rod (5) is rotatably connected to the outer surface of the movable block (4), while a movable plate (6) is rotatably connected to the other end of the outer surface of the pressing rod (5). The turntable (11) rotates in the middle section of the inner surface of the moving plate (6), and the outer surface of the turntable (11) is rotatably connected to the connecting rod (12), and the outer end of the connecting rod (12) is rotatably connected to the extrusion assembly (13), while the extrusion assembly (13) is provided with an extrusion locking mechanism.

2. The 3D printer with easily replaceable nozzles according to claim 1, characterized in that: The movable seat (2) forms a threaded sliding structure with the movable block (4) through a synchronous belt and a bidirectional lead screw (3), and the movable block (4) is symmetrically arranged about the middle section of the inner surface of the movable seat (2), and the movable block (4) forms a compression extension structure with the movable plate (6) through a compression rod (5).

3. A 3D printer with an easily replaceable nozzle according to claim 1, characterized in that: A telescopic rod (7) is installed on the rear side of the outer surface of the movable plate (6), and a telescopic assembly (8) is telescopically connected to the outer surface of the telescopic rod (7). A movable seat (2) is installed on the outer surface of the telescopic assembly (8). Meanwhile, a positioning block (9) is nested on the inner surface of the movable plate (6), and a nozzle assembly (10) is installed on the outer surface of the positioning block (9).

4. A 3D printer with an easily replaceable nozzle according to claim 3, characterized in that: The movable plate (6) forms a limiting telescopic structure with the movable seat (2) through the telescopic rod (7) and the telescopic component (8), and the movable plate (6) forms a positioning and engaging structure with the nozzle component (10) through the positioning block (9).

5. A 3D printer with an easily replaceable nozzle according to claim 1, characterized in that: The moving plate (6) forms a circumferential linear movement structure with the extrusion assembly (13) through the turntable (11) and the connecting rod (12), and the extrusion assembly (13) is symmetrically arranged about the inner surface of the moving plate (6).

6. A 3D printer with an easily replaceable nozzle according to claim 5, characterized in that: The compression engagement mechanism further includes a compression block (14) installed on the outer surface end of the compression assembly (13), and an inclined block (15) is installed on the outer surface of the compression block (14). The outer surface of the inclined block (15) is slidably connected to a compression seat (16), and the compression seat (16) is slidably limited on the upper and lower sides of the inner surface of the moving plate (6). At the same time, a clamp (17) is installed on the outer surface of the compression seat (16), and the outer surface of the clamp (17) is engaged with a nozzle assembly (10).

7. A 3D printer with an easily replaceable nozzle according to claim 6, characterized in that: The extrusion assembly (13) forms an integrated structure with the extrusion block (14) and the inclined block (15). The extrusion block (14) and the inclined block (15) are symmetrically arranged about the middle section of the inner surface of the extrusion assembly (13). The extrusion block (14) forms an inclined sliding structure with the extrusion seat (16) through the inclined block (15). At the same time, the extrusion seat (16) forms a linear sliding structure with the moving plate (6). The extrusion seat (16) forms a locking structure with the nozzle assembly (10) through the clamp (17).

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