FDM high-speed printing device

Abstract

The utility model relates to the technical field of printing devices, and provides an FDM high-speed printing device which comprises an FDM printer body and further comprises a workbench, a heating mechanism, two heating mantles, a removing mechanism and a clamp, the workbench is connected in the FDM printer body in a sliding mode, the heating mechanism is installed on the workbench, the two heating mantles are located on the two sides of the workbench, and the removing mechanism is installed on the workbench. The removing mechanism is installed at the bottom end of the FDM printer body, and the clamp is fixedly connected to one side of the FDM printer body. By means of the technical scheme, the problems that in the prior art, when a supporting structure is subjected to heat removal, a finished product is usually taken down and then put into a heat removal instrument, workpieces need to be manually transferred in the process, the temperature in an FDM printer needs to be considered in the transferring process, the workpieces are not collided, and the work efficiency is high are solved. And the FDM printing efficiency can be seriously influenced by transferring the workpiece back and forth.

Description

Technical Field

[0001] The utility model relates to the technical field of printing devices, in particular to an FDM high-speed printing device. Background Art

[0002] The FDM process, fused deposition modeling (FDM), was successfully developed by American scholars in 1988. The materials of FDM are generally thermoplastic materials, such as wax, ABS, nylon, etc., which are supplied in filament form. The working principle of FDM is to heat and melt the filamentary hot-melt material, and extrude it through a nozzle with a fine nozzle. After the hot-melt material melts, it is ejected from the nozzle and deposited on the production panel or the previous layer of solidified material. It starts to solidify after the temperature is lower than the curing temperature, and the final product is formed by the accumulation of layers of materials.

[0003] During the FDM printing process, the hot melt extrusion head system has a simple construction principle and operation, so the maintenance cost is low, the system runs safely, and the molding speed is slow. The products produced by the fused deposition method do not require the scraper reprocessing process in SLA, and the part prototypes molded with wax can be directly used for investment casting. The raw materials do not undergo chemical changes during the molding process, the warping deformation of the parts is small, and the material utilization rate is high.

[0004] During FDM printing, the filamentary hot-melt filament is transported to the print head through the feed shaft. The heating area of ​​the print head heats and melts the filament, and then the molten material is extruded onto the support structure through the nozzle according to a predetermined path. The extruded material quickly cools and solidifies in mid-air and is deposited on the workbench. After each layer of deposition is completed, the workbench drops a certain height and repeats until the entire three-dimensional modeling is completed. During the printing process, the role of the support structure is to support the suspended parts of the printed object to prevent them from sagging or deforming during the printing process. A reasonable support structure can effectively improve the accuracy and stability of the printed object. The support structure needs to be removed after printing is completed. The methods for removing the support mechanism in the prior art usually include manual removal methods, dissolution methods and thermal removal methods. The dissolution method requires that the support material is a soluble material, while the thermal removal method uses the difference in melting points between the support structure and the printing material to quickly remove the support.

[0005] However, in the prior art, when the support structure is thermally removed, the finished product is usually removed and then placed in a thermal removal instrument. The workpiece needs to be manually transferred during the process. During the transfer process, it is necessary to consider the temperature in the FDM printer and pay attention to the workpiece not being bumped. In addition, transferring the workpiece back and forth will seriously affect the efficiency of FDM printing. Utility Model Content

[0006] The utility model provides an FDM high-speed printing device, which solves the problem in the prior art that when the support structure is thermally removed, the finished product is usually removed and then placed in a thermal removal instrument, the workpiece needs to be manually transferred during the process, and the back-and-forth transfer of the workpiece will seriously affect the efficiency of FDM printing of the finished product.

[0007] The technical solution of the utility model is as follows:

[0008] An FDM high-speed printing device includes an FDM printer body, a workbench, a heating mechanism, a heating cover, a removal mechanism and a fixture;

[0009] The workbench is slidably connected in the FDM printer body;

[0010] The heating mechanism is installed on the workbench;

[0011] There are two heating covers, which are located on both sides of the workbench;

[0012] The removal mechanism is mounted at the bottom end of the FDM printer body;

[0013] The clamp is fixedly connected to one side of the FDM printer body.

[0014] Further, the heating mechanism includes a temperature-controlled heating plate, a thermal device and a closed drive assembly;

[0015] There are two temperature-controlling heating plates, and the two temperature-controlling heating plates are fixedly connected in the two heating covers;

[0016] The thermal device is fixedly connected to the top end of one of the heating covers;

[0017] The closed drive assembly is mounted on both sides of the FDM printer body.

[0018] Furthermore, the removal mechanism includes a mounting plate, a threaded rod, a slider, a motor, a through hole, a sliding table, an electric telescopic rod, and a pulling assembly;

[0019] The mounting plate 1 is fixedly connected to one side of the FDM printer body;

[0020] The threaded rod 1 is rotatably connected to the mounting plate 1;

[0021] The slider is threadedly connected to the threaded rod 1, and the clamp is fixedly connected to the slider;

[0022] The motor 1 is fixedly connected to the mounting plate 1, and the output end of the motor 1 is fixedly connected to the threaded rod 1;

[0023] The through hole is opened in the center of the workbench;

[0024] The sliding platform is slidably connected in the through hole;

[0025] The electric telescopic rods are provided in plurality, and the plurality of electric telescopic rods are fixedly connected to the bottom end of the workbench, and the output ends of the plurality of electric telescopic rods are fixedly connected to the sliding table;

[0026] The pulling assembly is installed at the bottom end of the FDM printer body.

[0027] Still further, the closed drive assembly includes a second mounting plate, a second threaded rod, a second motor and a threaded block;

[0028] There are two second mounting plates, and the two second mounting plates are fixedly connected to two sides of the workbench;

[0029] There are two threaded rods 2, and the two threaded rods 2 are rotatably connected in the two mounting plates 2;

[0030] The motor 2 is provided with two, the two motors 2 are fixedly connected to the two mounting plates 2, and the output ends of the two motors 2 are fixedly connected to the two threaded rods 2;

[0031] There are two threaded blocks, the two threaded blocks are fixedly connected to the two heating covers respectively, and the two threaded blocks are threadedly connected to the two threaded rods respectively.

[0032] Preferably, the pulling assembly comprises a mounting box, an electric cylinder, a mounting ring and an electric telescopic rod;

[0033] The installation box is fixedly connected to the bottom end of the FDM printer body;

[0034] The electric cylinder is fixedly connected in the installation box;

[0035] The mounting ring is fixedly connected to the output end of the electric cylinder;

[0036] There are multiple electric telescopic rods 2, and the multiple electric telescopic rods 2 are fixedly connected to the outer wall of the mounting ring, and the output end of each electric telescopic rod 2 is fixedly connected to an anti-sliding block.

[0037] More preferably, a plug hole and an insertion rod are respectively provided at the contact positions of the two heating covers, and a heat preservation strip is provided on one of the heating covers.

[0038] The working principle and beneficial effects of the utility model are:

[0039] 1. In the present invention, the workpiece printed by FDM is isolated in an independent cavity through a heating mechanism, and then the support structure used is heated. After heating to the melting point of the support structure, the support structure and the printed body are separated. Compared with the prior art, a heating cavity is directly formed for the removal of the support structure after printing, so that the support structure can be removed immediately after FDM printing, which is more efficient and makes full use of the residual heat left on the workpiece after printing, saving more resources.

[0040] 2. In the utility model, the effect of separating the initially melted support structure from the workpiece is achieved through the removal mechanism. Compared with the prior art, it does not require manual operation. The workpiece is taken out after printing, which is a finished product. The efficiency is higher. The removal mechanism can also properly store and process the removed support structure on the workbench, avoiding the difficulty in collecting the residue of the support structure after using pliers and scissors to remove the support structure in the prior art, and can also avoid scratches on the printed workpiece;

[0041] Therefore, the present invention can remove the support structure more efficiently than the prior art by combining the heating mechanism and the removal mechanism, and the support structure can be removed in the FDM printer, and the residual heat during printing can be used to increase the temperature to the melting point of the support structure more quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0043] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0044] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model;

[0045] Figure 3 This is a schematic diagram of the heating mechanism structure of the utility model;

[0046] Figure 4 This is a schematic diagram of the structure of the pulling component of the utility model;

[0047] Figure 5 It is a schematic diagram of the local structure of the pulling component of the utility model.

[0048] In the figure: 1. FDM printer body; 2. workbench; 3. heating cover; 4. fixture; 5. temperature control heating plate; 6. thermal device; 7. mounting plate 1; 8. threaded rod 1; 9. slider; 10. sliding table; 11. electric telescopic rod 1; 12. mounting plate 2; 13. threaded rod 2; 14. motor 2; 15. threaded block; 16. mounting box; 17. electric cylinder; 18. mounting ring; 19. electric telescopic rod 2; 20. socket; 21. plug rod; 22. insulation strip; 23. motor 1. DETAILED DESCRIPTION

[0049] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0050] like Figure 1 to Figure 5 As shown, this embodiment proposes an FDM high-speed printing device, including an FDM printer body 1, a workbench 2, a heating mechanism, a heating cover 3, a removal mechanism and a clamp 4, the workbench 2 is slidably connected in the FDM printer body 1, the heating mechanism is installed on the workbench 2, two heating covers 3 are provided, and the two heating covers 3 are located on both sides of the workbench 2, the removal mechanism is installed at the bottom end of the FDM printer body 1, and the clamp 4 is fixedly connected to one side of the FDM printer body 1. When the heating mechanism is started, the workpiece is gathered in the two heating covers 3 and heated to the melting point of the support structure, making full use of the residual heat of the printing process, and then the workpiece and the support structure are separated by the removal mechanism. Compared with the method of taking out the workpiece and then heating to separate the two, the printing efficiency is greatly improved.

[0051] Among them, the heating mechanism includes a temperature-controlled heating plate 5, a thermistor 6 and a closed driving assembly. There are two temperature-controlled heating plates 5, which are fixedly connected in two heating covers 3. The thermistor 6 is fixedly connected to the top of one of the heating covers 3. The closed driving assembly is installed on both sides of the FDM printer body 1. The thermistor 6 is used to monitor the temperature in the heating cover 3 and transmit the temperature information to the control system to control the temperature of the temperature-controlled heating plate 5. During the printing process, the two heating covers 3 are separated. When the printing is completed, the heating covers 3 are brought together to enclose the printed workpiece in the heating cover 3, and then the temperature-controlled heating plate 5 starts to heat the heating cover 3 to the melting point of the support structure.

[0052] Secondly, the removal mechanism includes a mounting plate 7, a threaded rod 8, a slider 9, a motor 23, a through hole, a sliding table 10, an electric telescopic rod 11 and a pulling component. The mounting plate 7 is fixedly connected to one side of the FDM printer body 1, the threaded rod 8 is rotatably connected to the mounting plate 7, the slider 9 is threadedly connected to the threaded rod 8, the motor 23 is fixedly connected to the mounting plate 7, the output end of the motor 23 is fixedly connected to the threaded rod 8, the clamp 4 is fixedly connected to the slider 9, the through hole is opened in the center of the workbench 2, the sliding table 10 is slidably connected in the through hole, the electric telescopic rod 11 is provided with a plurality of, and the plurality of electric telescopic rods 1 1 is fixedly connected to the bottom end of the workbench 2, the output ends of the multiple electric telescopic rods 11 are fixedly connected to the sliding table 10, and the pulling component is installed at the bottom end of the FDM printer body 1. When working, the motor 23 is started to drive the threaded rod 8 to rotate, thereby driving the slider 9 to slide in the mounting plate 7, driving the clamp 4 to move, and clamping the printed workpiece. Then the pulling component is started to pull the support structure downward, and the support structure sliding table 10 moves downward under the action of the electric telescopic rod 11, so that the support table is separated from the workpiece, and the support structure is immediately removed after heating. Compared with the method of removing by heat removal instruments and manual tools, the efficiency is greatly improved.

[0053] Again, the closed driving assembly includes a mounting plate 12, a threaded rod 13, a motor 14 and a threaded block 15. There are two mounting plates 12, which are fixedly connected to both sides of the workbench 2. There are two threaded rods 13, which are rotatably connected to the two mounting plates 12. There are two motors 14, which are fixedly connected to the two mounting plates 12. The output ends of the two motors 14 are fixedly connected to the two threaded rods 13. There are two threaded blocks 15, which are fixedly connected to the two heating covers 3 respectively. The two threaded blocks 15 are threadedly connected to the two threaded rods 13 respectively. After the workpiece is printed, the motor 14 is started, and the two motors 14 are started synchronously and in the same direction, driving the two threaded rods 13 to rotate, thereby driving the threaded blocks 15 to move closer to the middle, driving the two heating covers 3 to move closer and form a closed heating chamber.

[0054] Among them, the pulling component includes an installation box 16, an electric cylinder 17, a mounting ring 18 and an electric telescopic rod 19. The installation box 16 is fixedly connected to the bottom end of the FDM printer body 1, the electric cylinder 17 is fixedly connected in the installation box 16, the mounting ring 18 is fixedly connected to the output end of the electric cylinder 17, and a plurality of electric telescopic rods 19 are provided. The plurality of electric telescopic rods 19 are fixedly connected to the outer wall of the mounting ring 18, and the output end of each electric telescopic rod 19 is fixedly connected with an anti-sliding block. When the pulling component is started, the electric cylinder 17 is started first, driving the mounting ring 18 to move vertically upward, passing through the workbench 2, and moving to the same horizontal plane as the supporting structure. Then the electric telescopic rod 19 clamps the supporting structure, the electric cylinder 17 is started, and pulls downward. At the same time, the sliding table 10 sinks under the action of the electric telescopic rod 11 to separate the supporting structure from the workpiece.

[0055] Finally, the contact positions of the two heating covers 3 are respectively provided with a socket 20 and a plug rod 21, and one of the heating covers 3 is provided with a heat preservation strip 22. The socket 20 and the plug pin are locked together, and the heat preservation strip 22 can reduce the loss of heat.

[0056] In this embodiment, after the workpiece is printed, the motor 2 14 is started, driving the threaded rod 2 13 to rotate, thereby driving the threaded block 15 to move, driving the two heating covers 3 to move together to form a heating chamber to wrap the workpiece, and then the temperature-controlled heating plate 5 is started to heat the temperature in the heating cover 3 to a preset temperature to soften the contact part between the support structure and the workpiece, and then the heating cover 3 is opened, and the motor 1 23 drives the threaded rod 1 8 to rotate, thereby driving the slider 9 to move on the mounting plate 1 7, driving the clamp 4 to move to the workpiece position, fixing the workpiece, and then the electric cylinder 17 is started to drive the mounting ring 18 to move in the vertical direction to the support structure position, and then the electric telescopic rod 2 19 is started to clamp the support structure, and the electric cylinder 17 is started to pull the mounting ring 18 downward, thereby separating the support structure from the workpiece.

[0057] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An FDM high-speed printing device, comprising an FDM printer body (1), characterized in that: Also includes: A workbench (2), wherein the workbench (2) is slidably connected inside the FDM printer body (1); A heating mechanism, the heating mechanism being installed on the workbench (2); A heating cover (3), wherein two heating covers (3) are provided, and the two heating covers (3) are located on both sides of the workbench (2); A removal mechanism, the removal mechanism being mounted at the bottom end of the FDM printer body (1); A clamp (4), wherein the clamp (4) is fixedly connected to one side of the FDM printer body (1).

2. The FDM high-speed printing device according to claim 1, characterized in that: The heating mechanism comprises: A temperature control heating plate (5), wherein two temperature control heating plates (5) are provided, and the two temperature control heating plates (5) are fixedly connected in the two heating covers (3); A heat-sensitive device (6), the heat-sensitive device (6) being fixedly connected to the top end of one of the heating covers (3); A closed drive assembly is installed on both sides of the FDM printer body (1).

3. The FDM high-speed printing device according to claim 2, characterized in that: The removal mechanism comprises: A mounting plate 1 (7), wherein the mounting plate 1 (7) is fixedly connected to one side of the FDM printer body (1); A threaded rod (8), wherein the threaded rod (8) is rotatably connected to the mounting plate (7); A slider (9), wherein the slider (9) is threadedly connected to the threaded rod (8), and the clamp (4) is fixedly connected to the slider (9); Motor 1 (23), wherein the motor 1 (23) is fixedly connected to the mounting plate 1 (7), and the output end of the motor 1 (23) is fixedly connected to the threaded rod 1 (8); A through hole, wherein the through hole is provided at the center of the workbench (2); A sliding platform (10), the sliding platform (10) being slidably connected in the through hole; An electric telescopic rod (11), wherein a plurality of the electric telescopic rods (11) are provided, wherein the plurality of electric telescopic rods (11) are fixedly connected to the bottom end of the workbench (2), and the output ends of the plurality of electric telescopic rods (11) are fixedly connected to the sliding table (10); A pulling component is installed at the bottom end of the FDM printer body (1).

4. The FDM high-speed printing device according to claim 3, characterized in that: The closed drive assembly comprises: A second mounting plate (12), wherein two second mounting plates (12) are provided, and the two second mounting plates (12) are fixedly connected to two sides of the workbench (2); Threaded rod 2 (13), two threaded rods 2 (13) are provided, and the two threaded rods 2 (13) are rotatably connected in the two mounting plates 2 (12); Motor 2 (14), wherein two motors 2 (14) are provided, the two motors 2 (14) are fixedly connected to the two mounting plates 2 (12), and the output ends of the two motors 2 (14) are fixedly connected to the two threaded rods 2 (13); The threaded block (15) is provided with two threaded blocks (15), the two threaded blocks (15) are respectively fixedly connected to the two heating covers (3), and the two threaded blocks (15) are respectively threadedly connected to the two threaded rods (13).

5. The FDM high-speed printing device according to claim 4, characterized in that: The pulling assembly comprises: A mounting box (16), the mounting box (16) being fixedly connected to the bottom end of the FDM printer body (1); An electric cylinder (17), the electric cylinder (17) being fixedly connected in the installation box (16); A mounting ring (18), wherein the mounting ring (18) is fixedly connected to an output end of the electric cylinder (17); The electric telescopic rod 2 (19) is provided with a plurality of electric telescopic rods 2 (19), and the plurality of electric telescopic rods 2 (19) are fixedly connected to the outer wall of the mounting ring (18), and the output end of each electric telescopic rod 2 (19) is fixedly connected to an anti-sliding block.

6. The FDM high-speed printing device according to claim 5, characterized in that: The contact positions of the two heating covers (3) are respectively provided with an insertion hole (20) and an insertion rod (21), and one of the heating covers (3) is provided with a heat preservation strip (22).

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