Size and angle adjustable 3D printing nozzle device

Abstract

The utility model discloses a size and angle adjustable 3D printing nozzle device, and belongs to the technical field of 3D printing. The device is composed of an elastic film, a connecting rod structure, a movable platform and an angle adjusting mechanism, a nozzle body is provided with a nozzle outlet covered by the elastic film, the nozzle body is connected with the movable platform through the connecting rod structure, lifting motion of the movable platform drives the connecting rod structure to deform, and then the elastic film is pulled to change the size of the nozzle outlet; the angle adjusting mechanism arranged on the upper portion of the body achieves accurate adjustment of the overall angle of the nozzle through cooperation of a gear, a bearing and a motor. According to the printing nozzle device with the adjustable size and angle, through the innovative mechanical structure and control system design, real-time adjustment of the size and angle of the nozzle is achieved, and printing flexibility and adaptability are remarkably improved.

Description

Technical Field

[0001] The present invention relates to a 3D printing nozzle device with adjustable size and angle, specifically a printing nozzle device with adjustable size and angle composed of an elastic membrane, a connecting rod structure, a mobile platform, an angle adjustment mechanism and other structures, belonging to the field of 3D printing. Background Art

[0002] With the rapid development of industrial production, 3D printing technology has been widely used in my country's manufacturing industry, and 3D printing nozzles are a key component. However, the design of traditional 3D printing nozzles is often limited to a fixed nozzle size and printing angle, which greatly limits their potential in printing complex structures, high-precision requirements, and special materials. Therefore, it is urgent to develop a 3D printing nozzle device with adjustable size and angle that has a simple structure, high adjustment accuracy, fast response speed, and easy integration. However, there is currently no such adjustable nozzle device on the market. Summary of the Invention

[0003] In response to the limitations of the above-mentioned traditional 3D printing nozzles with fixed size and angle and the difficulty in ensuring both accuracy and speed, the present invention provides a 3D printing nozzle device with adjustable size and angle.

[0004] The present invention is achieved through the following technical solution: a 3D printing nozzle device with adjustable size and angle comprises an elastic membrane, a connecting rod structure, a movable platform, and an angle adjustment mechanism. The elastic membrane wraps around the inner side of a pull plate at the lower end of the connecting rod mechanism. The upper end of the connecting rod mechanism is welded to the lifting module of the movable platform. The upper end of the movable platform is bolted to the lower nozzle of the angle adjustment mechanism.

[0005] The elastic membrane is wrapped around the pulling plate of the connecting rod structure. A guide groove is provided on the outer side of the pulling plate. The lower end of the third connecting rod can move in a direction. At the same time, the upper end of the pulling plate, the upper end of the third connecting rod and the lower end of the second connecting rod are connected by bolts, and the lower end of the first connecting rod is directly fixedly connected to the movable ring.

[0006] The mobile platform is composed of a drive motor, a lifting module, a lead screw and other components. The drive motor is fixed to the upper end of the lead screw through a built-in connection, and the lifting module is connected to the upper end of the first connecting rod by welding.

[0007] The angle adjustment mechanism consists of an upper nozzle, a lower nozzle, a large gear, a small gear, a bearing and a drive motor. The drive motor is fixed to the lower end of the upper nozzle by bolts, the upper nozzle is fixed to the inner ring of the bearing, the lower nozzle is fixed to the outer ring of the bearing, the large gear is connected to the bearing by interference fit, and the small gear is connected to the drive motor through a gear sleeve.

[0008] The benefit of this invention is that the nozzle can dynamically adjust the nozzle size according to the specific requirements of each printing feature, thereby improving the printing speed while maintaining high resolution, achieving a double improvement in accuracy and efficiency. When the device is in use, the drive motor of the mobile platform rotates the drive screw according to the instructions, and the lifting module moves vertically to drive the connecting rod mechanism to make the pulling plate pull the elastic membrane, thereby changing the aperture size of the nozzle outlet. At the same time, the drive motor on the angle adjustment mechanism transmits power to the lower nozzle fixed to the outer ring of the bearing through gear transmission, so that it can rotate around the central axis, thereby accurately controlling the rotation angle of the nozzle, and the nozzle can be positioned according to the set angle to complete printing to meet the printing needs of more types of printing materials and complex structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 Schematic diagram of the connecting rod mechanism structure; Figure 3 Schematic diagram of the mobile platform device structure; Figure 4 Schematic diagram of the angle adjustment mechanism structure.

[0010] In the figure, 1. elastic membrane, 2. connecting rod structure, 201. pulling plate, 202. third connecting rod, 203. second connecting rod, 204. movable ring, 205. first connecting rod 3. mobile platform device, 301. lifting module, 302. lead screw, 303. driving motor, 4. angle adjustment mechanism, 401. lower nozzle, 402. driving motor, 403. small gear, 404. bearing, 405. large gear, 406. upper nozzle.

[0011] from Figure 1 The positional relationship of the four main structures, namely, the elastic membrane 1, the connecting rod structure 2, the moving platform device 3 and the angle adjustment mechanism 4, can be seen. DETAILED DESCRIPTION

[0012] A 3D printing nozzle device with adjustable size and angle consists of an elastic membrane 1, a connecting rod structure 2, a mobile platform 3, and an angle adjustment mechanism 4. The elastic membrane 1 wraps around the inner side of the pulling plate 201 at the lower end of the connecting rod structure 2. The upper end of the connecting rod structure 2 is welded to the lifting module 301 of the mobile platform 3. The upper end of the mobile platform 3 is bolted to one side of the lower nozzle 401 of the angle adjustment mechanism 4.

[0013] The elastic membrane 1 is wrapped around the pulling plate 201 of the connecting rod structure. A guide groove is provided on the outer side of the pulling plate 201. The lower end of the third connecting rod 202 can move in a direction. At the same time, the upper end of the pulling plate 201, the upper end of the third connecting rod 202 and the lower end of the second connecting rod 203 are connected by bolts, and the lower end of the first connecting rod 205 is directly fixedly connected to the movable ring 204.

[0014] The mobile platform 3 is composed of a drive motor 303, a lifting module 301, a lead screw 302 and other components. The drive motor 303 is fixed to the upper end of the lead screw 302 through a built-in connection, and the lifting module 301 is connected to the upper end of the first connecting rod 205 by welding.

[0015] The angle adjustment mechanism 4 is composed of an upper nozzle 406, a lower nozzle 401, a large gear 405, a small gear 403, a bearing 404 and a drive motor 402. The drive motor 402 is fixed to the lower end of the upper nozzle 406 by bolts. The upper nozzle 406 is fixed to the inner ring of the bearing 404, the lower nozzle 401 is fixed to the outer ring of the bearing 404, the large gear 405 is connected to the bearing 404 by interference fit, and the small gear 403 is connected to the drive motor 402 through a gear sleeve.

[0016] When the device is in use, the drive motor 303 drives the lead screw 302 to rotate according to the instruction, thereby driving the lifting module 301 to move in the vertical direction. The lifting module 301 of the mobile platform 3 drives the first connecting rod 205 to make the movable ring 204 fixed at the lower end of the first connecting rod 205 move up and down, thereby moving the second connecting rod 203 bolted to the lower end of the movable ring 204. At the same time, the lower end of the second connecting rod 203 pulls the third connecting rod 202, so that the lower end of the third connecting rod 202 moves in a direction within the guide groove of the pulling plate 201, thereby causing the pulling plate 201 to pull the elastic membrane 1 to change the aperture size of the nozzle outlet. At the same time, for the adjustment of the nozzle angle, the drive motor 402 above the main body transmits power to the lower nozzle 401 fixed to the outer ring of the bearing 404 through the gear transmission between the small gear 403 and the large gear 405, so that it can rotate around the central axis. By precisely controlling the rotation angle and speed of the drive motor 402, it can be ensured that the nozzle is positioned according to the angle set by the user, ensuring the accuracy of the adjustment.

[0017] For those skilled in the art, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.

Claims

1. A 3D printing nozzle device with adjustable size and angle, comprising an elastic membrane, a connecting rod structure, a movable platform, and an angle adjustment mechanism, characterized in that: The elastic membrane is wrapped around the inner side of the pulling plate at the lower end of the connecting rod mechanism. The upper end of the connecting rod mechanism is welded to the lifting module of the mobile platform. The upper end of the mobile platform is connected to one side of the lower nozzle of the angle adjustment machine by bolts.

2. A 3D printing nozzle device with adjustable size and angle according to claim 1, characterized in that: The elastic membrane is wrapped around the pulling plate of the connecting rod structure. A guide groove is provided on the outer side of the pulling plate. The lower end of the third connecting rod can move in a direction. At the same time, the upper end of the pulling plate, the upper end of the third connecting rod and the lower end of the second connecting rod are connected by bolts, and the lower end of the first connecting rod is directly fixedly connected to the movable ring.

3. The 3D printing nozzle device with adjustable size and angle according to claim 1, characterized in that: The mobile platform is composed of a driving motor, a lifting module and a lead screw. The driving motor is fixed to the upper end of the lead screw through a built-in connection, and the lifting module is connected to the upper end of the first connecting rod through welding.

4. The 3D printing nozzle device with adjustable size and angle according to claim 1, characterized in that: The angle adjustment mechanism consists of an upper nozzle, a lower nozzle, a large gear, a small gear, a bearing and a drive motor. The drive motor is fixed to the lower end of the upper nozzle by bolts, the upper nozzle is fixed to the inner ring of the bearing, the lower nozzle is fixed to the outer ring of the bearing, the large gear is connected to the bearing by interference fit, and the small gear is connected to the drive motor through a gear sleeve.

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