Discharging control mechanism of 3D printing equipment

Abstract

The utility model provides a discharge control mechanism of 3D printing equipment, and relates to the technical field of 3D printing, the discharge control mechanism comprises a rack, the top of the rack is provided with a mounting plate, the top of the mounting plate is provided with a material storage cylinder, the material storage cylinder is internally provided with a stirring mechanism, the top of the rack is provided with a placing groove, and the placing groove is internally and fixedly connected with a fixing rod. According to the utility model, when the storage barrel is vibrated, under the cooperation of the first U-shaped block, the second U-shaped block, the connecting rod, the fixed rod, the sliding block, the damping spring and the damper, the vibration of the storage barrel is reduced, the buffering and damping effects are achieved, and the printer body is prevented from influencing the printing precision due to the vibration during printing; and meanwhile, the discharging speed of the printer body is conveniently controlled and adjusted by controlling the booster pump, discharging nozzles with different calibers are replaced by rotating the discharging nozzles, and the discharging speed can be changed from the discharging port.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a material discharging control mechanism of a 3D printing device. Background Art

[0002] A 3D printer, also known as a three-dimensional printer, is a type of rapid prototyping 3D printing equipment that uses a layer-by-layer stacking method to create a three-dimensional model. Its operation process is similar to that of a traditional printer, except that traditional printers print ink on paper to form a two-dimensional plane drawing, while a three-dimensional printer stacks liquid photosensitive resin materials, molten plastic filaments, gypsum powder and other materials layer by layer through spraying adhesives or extrusion to form a three-dimensional entity.

[0003] For example, a 3D printing ceramic device with stable material discharging is described in its specification as follows: "The utility model relates to a 3D printing ceramic device with stable material discharging, comprising a frame, a stirring mechanism and a heating mechanism are arranged on the top of the frame, the stirring mechanism comprises a motor, a rotating shaft is arranged at the bottom of the output end of the motor, stirring blades are evenly arranged on the outer wall of the rotating shaft, a connecting column is arranged at the bottom of the rotating shaft, a first scraper close to the inner bottom surface of the storage barrel is connected to the bottom end of the connecting column, and the two ends of the first scraper are respectively connected to the second scraper close to the inner wall surface of the storage barrel; the heating mechanism comprises a heating wire evenly arranged on the outer wall of the storage barrel, the stirring blade, the first scraper and the second scraper are driven to rotate by the motor, and the stirring blade, the first scraper and the second scraper cooperate with each other to stir the mud in the middle, bottom and four walls of the storage barrel, so as to ensure that the bubbles in the mud are fully discharged and the material discharging is stable."

[0004] During use, the prior art has the advantages of ensuring that the bubbles in the mud are fully discharged and the discharge is stable. However, during the stirring process, when the motor drives the stirring blades, the first scraper and the second scraper to rotate, it is easy to cause the storage barrel to vibrate, thereby causing the printer to vibrate during the printing process, affecting the printing quality. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that when the motor drives the stirring blade, the first scraper and the second scraper to rotate during the stirring process, the storage barrel is easily vibrated, thereby causing the printer to vibrate during the printing process, affecting the printing quality, and a 3D printing equipment discharge control mechanism is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a material discharge control mechanism of a 3D printing device, comprising a frame, a mounting plate is arranged on the top of the frame, a material storage barrel is installed on the top of the mounting plate, a stirring mechanism is arranged in the material storage barrel, a placement groove is opened on the top of the frame, a fixing rod is fixedly connected in the placement groove, a shock-absorbing spring is sleeved on the outer surface of the fixing rod, a sliding block is sleeved on the outer surface of the fixing rod, a first U-shaped block is fixedly connected to the top of the sliding block, a second U-shaped block is fixedly connected to the bottom of the mounting plate, connecting rods are movably installed on the inner sides of the first U-shaped block and the second U-shaped block, a damper is installed on the top of the frame, and the top of the damper is fixedly connected to the mounting plate.

[0007] Preferably, the stirring mechanism includes a rotating shaft, which is rotatably connected to the storage barrel, and a fixed block is fixedly sleeved on the outer surface of the rotating shaft, and a connecting frame is fixedly connected to one side of the fixed block, and the top and bottom of the connecting frame are fixedly connected to the first telescopic rod.

[0008] Preferably, a second telescopic rod is fixedly connected to one side of the connecting frame, and the outer surfaces of the first telescopic rod and the second telescopic rod are both sleeved with return springs, one end of the first telescopic rod is fixedly connected to a scraper, and one end of the second telescopic rod is fixedly connected to a scraper block, and the scraper block and the scraper are both in contact with the inner wall of the storage barrel, and a driving motor is fixedly installed on the top of the storage barrel, and the output end of the driving motor passes through the storage barrel and is fixedly connected to the rotating shaft.

[0009] Preferably, a mounting groove is provided on one side of the frame, a printer body is provided on the inner top of the mounting groove, and a discharge nozzle is threadedly connected to the outer bottom of the printer body.

[0010] Preferably, the outer surface of the material storage barrel is fixedly connected with a discharge pipe, one end of the discharge pipe away from the material storage barrel is connected with the interior of the printer body, and a solenoid valve is arranged on the discharge pipe.

[0011] Preferably, a booster pump is connected in series on the discharge pipe, the booster pump is installed on one side of the frame, and a heating plate is provided inside the storage barrel.

[0012] Preferably, the top of the storage barrel is connected to a pressure relief valve, the top of the storage barrel is fixedly connected to a feed pipe, and the outer top of the feed pipe is threadedly connected to a pipe cap.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, when the material storage barrel is vibrated, the mounting plate is stressed, so that under the cooperation of the first shape block, the second U-shaped block and the connecting rod, the sliding block is driven to slide on the fixed rod, so that the sliding block squeezes the shock-absorbing spring, and the shock-absorbing spring begins to shrink under the squeezing, and under the elastic force of the shock-absorbing spring and the damping action of the damper, the vibration of the material storage barrel is reduced, which plays a role of buffering and shock absorption, and avoids the printing accuracy of the printer being affected by vibration during printing.

[0015] 2. In the utility model, a stirring mechanism is provided and the driving motor is started so that the rotating shaft drives the fixed block to rotate, thereby making the connecting frame drive the scraper and the scraper block to rotate synchronously, so as to facilitate the stirring of the material in the storage barrel. At the same time, under the elastic force of the reset spring, the scraper block and the scraper can maintain close contact with the top, bottom and inner wall of the storage barrel, so as to facilitate the full discharge of bubbles in the material, ensure the stability and uniformity of the discharge, and avoid the interruption of the discharge when the discharge nozzle encounters bubbles, thereby affecting the molding of the printed product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of the main structure of a material discharging control mechanism of a 3D printing device is proposed for the utility model;

[0017] Figure 2 The utility model provides a bottom side structural stereogram of a material discharging control mechanism of a 3D printing device;

[0018] Figure 3 A sectional structural stereogram of a material storage barrel in a material discharging control mechanism of a 3D printing device is proposed for the utility model;

[0019] Figure 4 The utility model provides a structural stereogram of a stirring mechanism in a material discharging control mechanism of a 3D printing device.

[0020] Legend: 1. Frame; 2. Mounting plate; 3. Storage barrel; 4. Stirring mechanism; 401. Rotating shaft; 402. Fixed block; 403. Connecting frame; 404. First telescopic rod; 405. Second telescopic rod; 406. Return spring; 407. Scraper; 408. Scraper block; 409. Driving motor; 5. Placement slot; 6. Fixed rod; 7. Shock-absorbing spring; 8. Sliding block; 9. First U-shaped block; 10. Second U-shaped block; 11. Connecting rod; 12. Damper; 13. Mounting slot; 14. Printer body; 15. Discharge pipe; 16. Solenoid valve; 17. Booster pump; 18. Heating plate; 19. Pressure relief valve; 20. Feed pipe; 21. Pipe cover; 22. Discharge nozzle. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1, as Figure 1 - Figure 4 As shown, the utility model provides a material discharging control mechanism for a 3D printing device, comprising a frame 1, a mounting plate 2 is arranged on the top of the frame 1, a material storage barrel 3 is installed on the top of the mounting plate 2, a stirring mechanism 4 is arranged in the material storage barrel 3, a placement groove 5 is opened on the top of the frame 1, a fixing rod 6 is fixedly connected in the placement groove 5, a shock-absorbing spring 7 is sleeved on the outer surface of the fixing rod 6, a sliding block 8 is sleeved on the outer surface of the fixing rod 6, a first U-shaped block 9 is fixedly connected to the top of the sliding block 8, a second U-shaped block 10 is fixedly connected to the bottom of the mounting plate 2, a connecting rod 11 is movably installed on the inner sides of the first U-shaped block 9 and the second U-shaped block 10, a damper 12 is installed on the top of the frame 1, and the top of the damper 12 is fixedly connected to the mounting plate 2.

[0024] The effect achieved by the entire embodiment 1 is that when the material storage barrel 3 is vibrated, the mounting plate 2 is subjected to force, so that under the cooperation of the first U-shaped block 9, the second U-shaped block 10 and the connecting rod 11, the sliding block 8 is driven to slide on the fixed rod 6, so that the sliding block 8 squeezes the shock-absorbing spring 7, and the shock-absorbing spring 7 begins to shrink under the squeezing, and under the elastic force of the shock-absorbing spring 7 and the damping action of the damper 12, the vibration of the material storage barrel 3 is reduced, which plays a role in buffering and shock absorption, thereby avoiding the printing accuracy being affected by vibration during printing.

[0025] Embodiment 2, as Figure 1 - Figure 4As shown, the stirring mechanism 4 includes a rotating shaft 401, which is rotatably connected to the storage barrel 3, and a fixed block 402 is fixedly sleeved on the outer surface of the rotating shaft 401, and a connecting frame 403 is fixedly connected to one side of the fixed block 402, and the top and bottom of the connecting frame 403 are fixedly connected to a first telescopic rod 404, and one side of the connecting frame 403 is fixedly connected to a second telescopic rod 405, and the outer surfaces of the first telescopic rod 404 and the second telescopic rod 405 are sleeved with a return spring 406, one end of the first telescopic rod 404 is fixedly connected to a scraper 407, and one end of the second telescopic rod 405 is fixedly connected to a scraper block 408, and the scraper block 408 and the scraper 407 are both in contact with the inner wall of the storage barrel 3, and a driving motor 409 is fixedly installed on the top of the storage barrel 3. The output end of 09 passes through the storage barrel 3 and is fixedly connected to the rotating shaft 401, a mounting groove 13 is opened on one side of the frame 1, a printer body 14 is arranged on the inner top of the mounting groove 13, the outer bottom of the printer body 14 is threadedly connected with a discharge nozzle 22, the outer surface of the storage barrel 3 is fixedly connected with a discharge pipe 15, the end of the discharge pipe 15 away from the storage barrel 3 is connected with the interior of the printer body 14, a solenoid valve 16 is arranged on the discharge pipe 15, a booster pump 17 is connected in series on the discharge pipe 15, the booster pump 17 is installed on one side of the frame 1, a heating plate 18 is arranged inside the storage barrel 3, a pressure relief valve 19 is connected to the top of the storage barrel 3, a feed pipe 20 is fixedly connected to the top of the storage barrel 3, and a pipe cover 21 is threadedly connected to the outer top of the feed pipe 20.

[0026] The effect achieved by the entire embodiment 2 is that, by providing the stirring mechanism 4, the driving motor 409 is started, so that the rotating shaft 401 drives the fixed block 402 to rotate, so that the connecting frame 403 drives the scraper 407 and the scraper block 408 to rotate synchronously, so as to facilitate the stirring of the material in the storage barrel 3. At the same time, under the elastic force of the reset spring 406, the scraper block 408 and the scraper 407 can maintain close contact with the top, bottom and inner wall of the storage barrel 3, so as to facilitate the full discharge of bubbles in the material, ensure the stability and uniformity of the discharge, and avoid the interruption of the discharge when the discharge nozzle 22 encounters bubbles, which affects the molding of the printed product. Then, by opening the solenoid valve 16, under the action of the booster pump 17, the material is The discharge pipe 15 enters the printer body 14 and then discharges and prints through the discharge nozzle 22. At the same time, the discharge speed of the printer body 14 can be conveniently controlled and adjusted by controlling the booster pump 17. At the same time, the discharge nozzle 22 of different calibers can be replaced by rotating the discharge nozzle 22, and the discharge speed can also be changed from the discharge port. The material in the storage barrel 3 is then heated by the heating plate 18 to ensure the smooth state of the material and prevent the material from cooling and blocking the discharge nozzle 22. A pressure relief valve 19 is provided. When the bubbles in the storage barrel 3 accumulate to a certain extent, the air pressure in the storage barrel 3 will rise and push the pressure relief valve 19 open for pressure relief. Then, by rotating the pipe cover 21, the required material can be added to the storage barrel 3 through the feed pipe 20.

[0027] Working principle: when in use, the required material is added into the storage barrel 3 through the feeding pipe 20, and then the pipe cover 21 is rotated to close the feeding pipe 20, and the driving motor 409 is started to make the rotating shaft 401 drive the fixed block 402 to rotate, so that the connecting frame 403 drives the scraper 407 and the scraper block 408 to rotate synchronously, so as to stir the material in the storage barrel 3, and at the same time, under the elastic force of the return spring 406, the scraper block 408 and the scraper 407 can maintain close contact with the top, bottom and inner wall of the storage barrel 3, so as to facilitate the full discharge of bubbles in the material, ensure the stability and uniformity of the discharge, and avoid the interruption of the discharge when the discharge nozzle 22 encounters bubbles, which affects the molding of the printed product. When the bubbles in the storage barrel 3 accumulate to a certain extent, the air pressure in the storage barrel 3 rises and the pressure relief valve 19 is pushed open for pressure relief. When the storage barrel 3 vibrates during the stirring process, the mounting plate 2 is subjected to force, so that the first U-shaped block 9 and the second U Under the cooperation of the shaping block 10 and the connecting rod 11, the sliding block 8 is driven to slide on the fixed rod 6, so that the sliding block 8 squeezes the shock absorbing spring 7, and the shock absorbing spring 7 begins to shrink under the squeezing. Under the elastic force of the shock absorbing spring 7 and the damping action of the damper 12, the vibration of the material storage barrel 3 is reduced, which plays a role of buffering and shock absorption, and prevents the subsequent printer body 14 from affecting the printing accuracy due to vibration during printing. At the same time, the material in the material storage barrel 3 is heated by the heating plate 18 to ensure the smooth state of the material and prevent the material from cooling and blocking the discharge nozzle 22. Subsequently, by opening the solenoid valve 16, under the action of the booster pump 17, the material enters the printer body 14 through the discharge pipe 15 and then is discharged and printed through the discharge nozzle 22. At the same time, the discharge speed of the printer body 14 is conveniently controlled and adjusted by controlling the booster pump 17. At the same time, the discharge nozzle 22 is replaced with a discharge nozzle 22 of different calibers by rotating the discharge nozzle 22, and the discharge speed can also be changed from the discharge port.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A 3D printing device discharge control mechanism, comprising a frame (1), characterized in that: A mounting plate (2) is arranged on the top of the frame (1), a material storage barrel (3) is installed on the top of the mounting plate (2), a stirring mechanism (4) is arranged in the material storage barrel (3), a placement groove (5) is opened on the top of the frame (1), a fixing rod (6) is fixedly connected in the placement groove (5), a shock absorbing spring (7) is sleeved on the outer surface of the fixing rod (6), a sliding block (8) is sleeved on the outer surface of the fixing rod (6), a first U-shaped block (9) is fixedly connected to the top of the sliding block (8), a second U-shaped block (10) is fixedly connected to the bottom of the mounting plate (2), a connecting rod (11) is movably installed on the inner sides of the first U-shaped block (9) and the second U-shaped block (10), a damper (12) is installed on the top of the frame (1), and the top end of the damper (12) is fixedly connected to the mounting plate (2).

2. A 3D printing device discharge control mechanism according to claim 1, characterized in that: The stirring mechanism (4) comprises a rotating shaft (401), the rotating shaft (401) being rotatably connected to the storage barrel (3), a fixed block (402) being fixedly sleeved on the outer surface of the rotating shaft (401), a connecting frame (403) being fixedly connected to one side of the fixing block (402), and a first telescopic rod (404) being fixedly connected to the top and bottom of the connecting frame (403).

3. A 3D printing device discharge control mechanism according to claim 2, characterized in that: A second telescopic rod (405) is fixedly connected to one side of the connecting frame (403); the outer surfaces of the first telescopic rod (404) and the second telescopic rod (405) are sleeved with return springs (406); one end of the first telescopic rod (404) is fixedly connected to a scraper (407); one end of the second telescopic rod (405) is fixedly connected to a scraper block (408); the scraper block (408) and the scraper plate (407) are both in contact with the inner wall of the material storage barrel (3); a driving motor (409) is fixedly mounted on the top of the material storage barrel (3); the output end of the driving motor (409) passes through the material storage barrel (3) and is fixedly connected to the rotating shaft (401).

4. A 3D printing device discharge control mechanism according to claim 1, characterized in that: A mounting groove (13) is provided on one side of the frame (1), a printer body (14) is provided on the inner top of the mounting groove (13), and a discharge nozzle (22) is threadedly connected to the outer bottom of the printer body (14).

5. A 3D printing device discharge control mechanism according to claim 4, characterized in that: The outer surface of the material storage barrel (3) is fixedly connected to a discharge pipe (15), one end of the discharge pipe (15) away from the material storage barrel (3) is connected to the interior of the printer body (14), and a solenoid valve (16) is provided on the discharge pipe (15).

6. A 3D printing device discharge control mechanism according to claim 5, characterized in that: A booster pump (17) is connected in series to the discharge pipe (15), and the booster pump (17) is installed on one side of the frame (1). A heating plate (18) is provided inside the storage barrel (3).

7. A 3D printing device discharge control mechanism according to claim 1, characterized in that: The top of the material storage barrel (3) is connected to a pressure relief valve (19), the top of the material storage barrel (3) is fixedly connected to a feed pipe (20), and the outer top of the feed pipe (20) is threadedly connected to a pipe cover (21).

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