Spinning mechanism of 3D printer

Abstract

The utility model relates to the technical field of 3D printing, in particular to a spinning mechanism of a 3D printer, a nozzle is mounted on the surface of the bottom of an additionally mounted nozzle, a motor is mounted on each of the left side and the right side of the interior of the printer, and a spiral shaft is mounted on an output shaft of each motor. A lifting base is installed in the printer and located below the spinneret, and the spiral shafts are installed on the left side and the right side of the lifting base correspondingly. The tail end of the feeding pipe is fixed through the mounting base, the adjusting shaft is used for driving the lead screw to control the clamping block to limit the external feeding pipe, and the clamping block can conveniently adapt to the size of the feeding pipe; therefore, the reinforced spinneret of the 3D printer can better adapt to installation of feeding pipes with different sizes, the adaptive capacity of the spinneret during feeding is improved, and the problem of pipe separation caused by pulling in the printing process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a wire spraying mechanism of a 3D printer. Background Art

[0002] A 3D printer is a rapid prototyping process device. Based on a digital model file, it uses special wax materials, powdered metals or plastics and other bondable materials to manufacture three-dimensional objects by printing layers of bondable materials. At present, 3D printers are used to manufacture products, which are technical devices that construct objects by layer-by-layer printing;

[0003] When the existing 3D printer is in use, its wire sprayer is mostly adapted to a feeding pipe with a fixed specification. When the feeding pipe is aged and damaged and the staff repairs and replaces it, it is inevitable that the replacement is not standard, which easily leads to the incompatibility of the sizes of the wire sprayer and the feeding pipe, and then the situation of material leakage occurs, which in turn causes the inside of the printer to be contaminated by the material. Content of the Utility Model

[0004] The purpose of the utility model is to provide a wire spraying mechanism of a 3D printer for the deficiencies of the prior art to solve the problems put forward in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A wire spraying mechanism of a 3D printer, including a printer. A horizontal regulator is fixedly connected inside the printer, and a mounting frame is threadedly sleeved on the surface of the horizontal regulator. A longitudinal regulator is fixedly connected to the lower surface of the mounting frame. One motor is respectively installed at the end of one side of the horizontal regulator and the longitudinal regulator, and a threaded rod is respectively installed at the end of the output shaft of each motor. Limit grooves matching the threaded rods are opened on the surfaces of the horizontal regulator and the longitudinal regulator. A nut sleeve is threadedly sleeved on the surface of the threaded rod of the longitudinal regulator and below the longitudinal regulator, and a wire sprayer is fixedly connected to the end of the nut sleeve. An installation seat and an additional nozzle are respectively installed on the side surface and the low-end surface of the wire sprayer. The number of the installation seats is several. A nozzle is installed on the bottom surface of the additional nozzle. One motor is respectively installed on the left and right sides inside the printer, and a spiral shaft is installed on the output shaft of each motor. A lifting seat is installed below the wire sprayer inside the printer, and the spiral shafts are respectively installed on the left and right sides of the lifting seat.

[0006] Preferably, a socket is opened at the end of the surface of each installation seat, and an adjusting shaft is inserted through a threaded hole on one side surface of each installation seat. The position of the adjusting shaft is on the side of the installation seat facing the outside, which maximally strengthens the control ability of the overall device and ensures the practicability of the overall device.

[0007] Preferably, the adjusting shaft extends into the interior of the mounting seat, and a lead screw is installed at the opposite end. A bearing is installed on the inner wall surface of the mounting seat at the end of the lead screw. The thread grooves on the left and right sides of the lead screw surface have opposite helix directions, effectively strengthening the stability of each component and at the same time enhancing the support strength of the overall device.

[0008] Preferably, a bottom ring is respectively threadedly sleeved on the thread grooves on the left and right sides of the surface of the lead screw, and a clamping block is fixedly connected to the top of each bottom ring, which better protects the use of the overall device from being affected and enhances the practicality of operating the overall device.

[0009] Preferably, a slot hole matching the spiral shaft is respectively formed on the left and right sides of the lifting seat, and a support pad seat is installed inside the printer below the lifting seat, which better enhances the balance of the overall device and effectively improves the flexibility of using the overall device.

[0010] Preferably, a valve and a delivery pipe are built into the spinneret, and the top end of the delivery pipe can be inserted into the end socket on the surface of the mounting seat, which more powerfully enhances the operability of the overall device and ensures the firmness and stability during use.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] For the spinneret mechanism of this 3D printer, the end position of the feeding pipe is fixed by the mounting seat. The adjusting shaft drives the lead screw to control the clamping block to limit the external feeding pipe and facilitate adaptation to the size of the feeding pipe. Then, through the cooperation of the lifting seat with the horizontal adjuster and the vertical adjuster, it is achieved that the spinneret of the 3D printer can better adapt to feeding pipes of different sizes for installation, improving the adaptability of the spinning operation when receiving the feed, and further facilitating the adjustment of the thickness of the material during printing. It is convenient to fix the feeding pipe and avoid the occurrence of phenomena such as the feeding pipe being pulled off accidentally during subsequent 3D printing. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall external structure of the present utility model;

[0014] Figure 2 is a schematic diagram of the structure of the horizontal adjustment seat of the present utility model;

[0015] Figure 3 is a schematic diagram of the structure of the spinneret of the present utility model;

[0016] Figure 4 is a schematic diagram of the structure of the clamping block of the present utility model;

[0017] Figure 5 is a schematic diagram of the structure of the added nozzle of the present utility model.

[0018] In the figure: 1. Printer; 2. Horizontal regulator; 3. Mounting bracket; 4. Vertical regulator; 5. Spinneret; 6. Nut sleeve; 7. Mounting base; 8. Adjusting shaft; 9. Lead screw; 10. Bearing; 11. Bottom ring; 12. Clamping block; 13. Additional nozzle; 14. Nozzle; 15. Lifting seat; 16. Spiral shaft. Specific implementation mode

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0021] Such as Figures 1-5As shown in the figure, the wire spraying mechanism of a 3D printer in this embodiment includes a printer 1. A horizontal regulator 2 is fixedly connected inside the printer 1, and a mounting bracket 3 is threadedly sleeved on the surface of the horizontal regulator 2. A vertical regulator 4 is fixedly connected to the lower surface of the mounting bracket 3. The positions of the wire sprayer 5 are controlled by the horizontal regulator 2 and the vertical regulator 4 for easy movement. Motors are respectively installed at one end of each side of the horizontal regulator 2 and the vertical regulator 4, and threaded rods are respectively installed at the ends of the output shafts of each motor. Limit grooves matching the threaded rods are provided on the surfaces of the horizontal regulator 2 and the vertical regulator 4. The threaded rods inside the horizontal regulator 2 and the vertical regulator 4 are limited by the limit grooves and are facilitated to perform reciprocating movements. A screw sleeve 6 is threadedly sleeved on the surface of the threaded rod of the vertical regulator 4 and below the vertical regulator 4, and the end of the screw sleeve 6 is fixedly connected to the wire sprayer 5. The position of the wire sprayer 5 is driven by the screw sleeve 6 and is displaced under the traction of the horizontal regulator 2 and the vertical regulator 4. Mounting seats 7 and additional nozzles 13 are respectively installed on the side surface and the low-end surface of the wire sprayer 5. The number of the mounting seats 7 is several. A nozzle 14 is installed on the bottom surface of the additional nozzle 13. The nozzle 14 is installed in a thread-removable connection form. 3D printing is carried out by spraying wire on the surface of the lifting seat 15 through the additional nozzle 13. Motors are respectively installed on the left and right sides inside the printer 1, and a spiral shaft 16 is installed on the output shaft of each motor. The motors here, the motor inside the horizontal regulator 2 and the motor inside the vertical regulator 4 can select servo motors of different models according to the actual situation, and corresponding forward and reverse control circuits need to be configured for use. A lifting seat 15 is installed inside the printer 1 and below the wire sprayer 5, and the spiral shafts 16 are respectively installed on the left and right sides of the lifting seat 15. 3D printing is carried out by spraying wire on the surface of the lifting seat 15 through the additional nozzle 13, and the lifting seat 15 is adjusted for up and down displacement inside the printer 1.

[0022] Furthermore, sockets are provided at the end of the surface of each mounting seat 7, and an adjusting shaft 8 is inserted through a threaded hole on one side surface of each mounting seat 7. The position of the adjusting shaft 8 is on the side of the mounting seat 7 facing outward. The rotation of the corresponding lead screw 9 is controlled by the adjusting shaft 8, so as to drive the clamping block 12 to perform relative displacement.

[0023] Furthermore, the adjusting shaft 8 extends into the inside of the mounting seat 7 and a lead screw 9 is installed at the opposite end. A bearing 10 is installed on the inner wall surface of the mounting seat 7 at the end of the lead screw 9. The thread grooves on the left and right sides of the surface of the lead screw 9 have opposite helix directions. The bottom ring 11 is controlled by the thread grooves bidirectionally opened on the surface of the lead screw 9, so as to drive the clamping block 12 to facilitate relative movement to fix feed pipes of different sizes.

[0024] Furthermore, a bottom ring 11 is threadedly sleeved on the thread grooves on the left and right sides of the surface of the lead screw 9, and a clamping block 12 is fixedly connected to the top of each bottom ring 11. By matching the bottom ring 11 with the clamping block 12 and with the assistance of the lead screw 9 and the bearing 10, it is convenient to fix the material supply pipe to prevent it from falling off.

[0025] Furthermore, a slot hole matching the spiral shaft 16 is respectively opened on the left and right sides of the lifting seat 15, and a support pad is installed inside the printer 1 below the lifting seat 15. By means of the synchronous rotation of the spiral shaft 16 on the left and right sides inside the printer 1 and with the support of the support pad for the lifting seat 15, the lifting seat 15 is driven to lift in matching with the spinneret 5 to complete printing.

[0026] Even further, a valve and a delivery pipe are built into the spinneret 5, and the top end of the delivery pipe can be plugged into the end socket on the surface of the mounting seat 7. By means of spraying through the valve to the outside of the bottom end of the spinneret 5 for printing, and using the nozzle 14 to assist in controlling the spraying of the material by the valve of the spinneret 5.

[0027] The usage method of this embodiment is as follows: When in use, please refer to Figures 1-5 , first, the staff needs to manually install the end of the material supply pipe inside the printer 1 with the spinneret 5. During the installation process, the staff manually plugs the end of the material supply pipe into the jack on the surface of the mounting seat 7, and then continues to push the end of the material supply pipe inserted into the mounting seat 7 forward and extends it, and simultaneously manually rotates the adjusting shaft 8. By rotating the adjusting shaft 8 on the surface of the mounting seat 7, the lead screw 9 is driven to rotate synchronously in cooperation with the bearing 10. Then, by means of the rotation of the lead screw 9, the bottom rings 11 on the left and right sides of the lead screw 9 are driven to displace, and thus the clamping blocks 12 respectively installed above the two bottom rings 11 are synchronously driven to move, so as to adapt to and fix material supply pipes of different sizes, in order to improve the adaptability of the spinneret 5. The end part of the material supply pipe (i.e., the part installed with the mounting seat 7) can be made of metal material, and the end is a threaded structure, which can be threadedly connected to the top end of the material supply channel inside the spinneret 5, and the part inside the mounting seat 7 can be clamped by the clamping block 12 without deformation. The other parts of the material supply pipe can be made of flexible hoses. Actually, the whole is conducive to material supply. At the same time, the material inside the material supply pipe is a filamentous solid printing material. The spinneret 5 is an existing and mature device in the prior art, and there is a mature heating component inside the spinneret 5 in the prior art. When the filamentous fixed printing material inside the material supply pipe is sprayed by the spinneret 5, the heating component inside the spinneret 5 heats the filamentous fixed printing material inside the material supply pipe into a molten state. Before the spinneret 5 sprays, according to the different requirements of the current staff, nozzles 14 of different specifications and models can be installed on the additional nozzle 13 for use by means of threaded connection.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A wire spraying mechanism of a 3D printer, comprising a printer (1), characterized in that: Inside the printer (1), a lateral adjuster (2) is fixedly connected, and a mounting bracket (3) is threadedly sleeved on the surface of the lateral adjuster (2). A longitudinal adjuster (4) is fixedly connected to the lower surface of the mounting bracket (3). At one end of each of the lateral adjuster (2) and the longitudinal adjuster (4), a motor is respectively installed, and at the end of the output shaft of each motor, a threaded rod is respectively installed. Limiting grooves matching the threaded rods are provided on the surfaces of the lateral adjuster (2) and the longitudinal adjuster (4). On the surface of the threaded rod of the longitudinal adjuster (4) and below the longitudinal adjuster (4), a nut sleeve (6) is threadedly sleeved, and a spinneret (5) is fixedly connected to the end of the nut sleeve (6). Mounting seats (7) and additional nozzles (13) are respectively installed on the side surface and the lower end surface of the spinneret (5). The number of mounting seats (7) is several. A nozzle (14) is installed on the bottom surface of the additional nozzle (13). Inside the printer (1), a motor is respectively installed on the left and right sides, and a spiral shaft (16) is installed on the output shaft of each motor. An elevating seat (15) is installed inside the printer (1) and below the spinneret (5), and the spiral shafts (16) are respectively installed on the left and right sides of the elevating seat (15).

2. The spinning mechanism of a 3D printer according to claim 1, wherein: At the end of the surface of each mounting seat (7), a socket is provided, and an adjusting shaft (8) is inserted through a threaded hole on one side surface of each mounting seat (7). The adjusting shaft (8) is located on the side of the mounting seat (7) facing outward.

3. The spinning mechanism of a 3D printer according to claim 2, characterized in that: The adjusting shaft (8) extends into the inside of the mounting seat (7), and a lead screw (9) is installed at the opposite end. A bearing (10) is installed on the inner wall surface of the mounting seat (7) at the end of the lead screw (9). The thread grooves on the left and right sides of the surface of the lead screw (9) have opposite helix directions.

4. The spinning mechanism of a 3D printer according to claim 3, characterized in that: On the thread grooves on the left and right sides of the surface of the lead screw (9), a bottom ring (11) is respectively threadedly sleeved, and a clamping block (12) is fixedly connected to the top of each bottom ring (11).

5. The spinning mechanism of a 3D printer according to claim 1, characterized in that: On the left and right sides of the elevating seat (15), a slot hole matching the spiral shaft (16) is respectively provided, and a support cushion seat is installed inside the printer (1) and below the elevating seat (15).

6. The wire spraying mechanism of a 3D printer according to claim 1, characterized in that: Inside the spinneret (5), a valve and a delivery pipe are built in, and the delivery pipe extends outward through the socket at the end of the surface of the mounting seat (7).

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