Working cylinder device for 3D printing equipment

Abstract

The utility model discloses a working cylinder device for 3D printing equipment, which relates to the technical field of 3D printing equipment and comprises a delivery plate, a printing platform, a pushing mechanism, a cleaning mechanism and a lifting mechanism. The cleaning mechanism comprises a sliding groove formed in the inner wall of the back face of the 3D printing equipment body, a threaded rotating rod, a cleaning brush rod, a motor support and an upper servo motor. The cleaning mechanism is arranged, and dust impurities on the surface of the printing platform are effectively cleaned through reciprocating motion of the cleaning brush rod on the surface of the printing platform, so that the printing platform can be automatically cleaned after printing is completed, the manual cleaning burden is reduced, and the cleaning efficiency and the cleaning quality are improved; and by arranging the pushing mechanism, the printed product on the printing platform can be translated to the outer side, so that the printed product is convenient to take, and the product is prevented from being damaged due to blocking of a narrow space in the equipment when being taken.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing equipment, and in particular to a working cylinder device for 3D printing equipment. Background Art

[0002] With the increasing development of 3D printing technology, fused deposition modeling technology is currently the most widely used technology in 3D printers. It is a method that does not rely on laser as a molding energy source, but heats and melts various filaments (such as engineering plastics ABS, polycarbonate PC, etc.) and then accumulates and forms them. It is referred to as FDM.

[0003] After searching, patent application number 201922491418.8 discloses a working cylinder device for 3D printing equipment, which includes a printing box, a printing platform, an indicator light, a glass door, a first reduction motor, a first lead screw, a first nut holder, a second reduction motor, a second lead screw, a slide rod, a slip ring, and a second nut holder. This patent solves the problem of inflexible printing of the working cylinder device for the original 3D equipment. However, this patent still has the following shortcomings in actual operation:

[0004] First, it is inconvenient to automatically clean the printing platform after printing, which increases the burden of manual cleaning and the efficiency of manual cleaning is relatively low;

[0005] Secondly, after printing is completed, it is inconvenient to take out the printed product inside the device. When taking out the product, it is easy to be damaged due to the obstruction of the narrow space inside the device. Utility Model Content

[0006] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a working cylinder device for 3D printing equipment.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A working cylinder device for 3D printing equipment, comprising a delivery plate and a printing platform, a pushing mechanism, a cleaning mechanism and a lifting mechanism arranged in the body of the 3D printing equipment;

[0009] The cleaning mechanism includes a chute provided on the inner wall of the back side of the 3D printing device body, a threaded rotating rod rotatably installed in the chute, a cleaning brush rod threadedly connected to the threaded rotating rod, a motor bracket welded to the side wall of the 3D printing device body, and an upper servo motor fixedly installed on the side wall of the motor bracket. In this way, the cleaning brush rod reciprocates on the surface of the printing platform to effectively clean dust and impurities on the surface thereof, thereby facilitating automatic cleaning of the printing platform after printing is completed, reducing the burden of manual cleaning and improving cleaning efficiency and cleaning quality;

[0010] The pushing mechanism includes a driving assembly, two sliding grooves provided on the inner wall of the bottom of the 3D printing device body, two lead screws installed in the two sliding grooves that are rotated in sequence, two sliding seats that are threadedly connected to the two lead screws in sequence, and two worm gears that are fixedly mounted on the two lead screws in sequence. In this way, the product printed on the printing platform can be moved horizontally to the outside, making it convenient to take the printed product and preventing it from being damaged due to the obstruction of the narrow space inside the device when taking the product.

[0011] Preferably, the outer wall of the cleaning brush rod is slidably connected to the inner wall of the slide groove, the bottom of the cleaning brush rod is provided with evenly distributed bristles, and the output shaft of the upper servo motor passes through the motor bracket and is coaxially fixedly connected to one end of the threaded rotating rod through a coupling.

[0012] Preferably, the outer walls of the two sliding seats are slidably connected to the inner walls of the two sliding grooves respectively, and the top outer walls of the two sliding seats are fixedly connected to the bottom outer wall of the delivery plate.

[0013] Preferably, the driving assembly includes a carrier fixedly connected to the outer wall of the back side of the 3D printing device body, a lower servo motor fixedly mounted on the side wall of the carrier, a transmission shaft rotatably mounted on the carrier, and two worms fixedly mounted on the transmission shaft in sequence.

[0014] Preferably, the output shaft of the lower servo motor passes through the carrier frame and is coaxially fixedly connected to one end of the transmission shaft through a coupling, and the two worms are respectively engaged with the two worm wheels.

[0015] Preferably, the lifting mechanism includes a guide rail fixedly connected to the top outer wall of the delivery plate, a two-way cylinder fixedly installed on the top outer wall of the guide rail, two movable blocks fixed on the two piston ends of the two-way cylinder, and two linkage oblique rods symmetrically hinged on the top of the two movable blocks.

[0016] Preferably, the two movable blocks are both slidably connected to the guide rail, the top ends of the two linked oblique rods are both hinged to the bottom of the printing platform, and the two linked oblique rods are arranged to be cross-shaped and non-contact.

[0017] The beneficial effects of the utility model are:

[0018] 1. A cleaning mechanism is provided, which effectively cleans the dust and impurities on the surface of the printing platform by reciprocating the cleaning brush rod on the surface of the printing platform. This facilitates automatic cleaning of the printing platform after printing is completed, reducing the burden of manual cleaning and improving cleaning efficiency and cleaning quality;

[0019] 2. A pushing mechanism is provided to move the printed product on the printing platform to the outside, making it easier to take the printed product and prevent it from being damaged due to the obstruction of the narrow space inside the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the partial front view structure of the utility model;

[0022] Figure 3 This is a three-dimensional enlarged structural diagram of the pushing mechanism area in the utility model;

[0023] Figure 4 For this utility model Figure 3 Schematic diagram of the three-dimensional enlarged structure of part A;

[0024] Figure 5 It is a three-dimensional structural diagram of the lifting mechanism in the utility model.

[0025] In the figure: 1. 3D printing device body; 2. Feed plate; 3. Printing platform; 4. Threaded rotating rod; 5. Cleaning brush rod; 6. Motor bracket; 7. Upper servo motor; 8. Lead screw; 9. Sliding seat; 10. Worm gear; 11. Carrying frame; 12. Lower servo motor; 13. Drive shaft; 14. Worm; 15. Guide rail; 16. Bidirectional cylinder; 17. Movable block; 18. Linkage inclined rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Example 1, reference Figure 1-5 A working cylinder device for a 3D printing device includes a delivery plate 2 and a printing platform 3, a pushing mechanism and a lifting mechanism arranged in a 3D printing device body 1. The pushing mechanism includes:

[0028] Two sliding grooves and two lead screws 8, both of which are provided on the bottom inner wall of the 3D printing device body 1, and the two lead screws 8 are rotated and installed in the two sliding grooves in sequence;

[0029] Two sliding seats 9 and two worm gears 10. The two sliding seats 9 are sequentially threadedly connected to the two lead screws 8. The outer walls of the two sliding seats 9 are respectively slidably connected to the inner walls of the two sliding grooves. The top outer walls of the two sliding seats 9 are fixedly connected to the bottom outer wall of the delivery plate 2. The two worm gears 10 are sequentially fixedly sleeved on the two lead screws 8.

[0030] The drive assembly includes a carrier 11 fixedly connected to the outer wall of the back of the 3D printing device body 1, a lower servo motor 12 fixedly mounted on the side wall of the carrier 11, a transmission shaft 13 rotatably mounted on the carrier 11, and two worms 14 fixedly mounted on the transmission shaft 13 in sequence;

[0031] Furthermore, the output shaft of the lower servo motor 12 passes through the carrier 11 and is coaxially fixedly connected to one end of the transmission shaft 13 through a coupling, and the two worms 14 are respectively engaged with the two worm wheels 10;

[0032] When the pushing mechanism is in use: the two worms 14 are driven to rotate by the lower servo motor 12, and then the two worm wheels 10 engaged with the two worms 14 drive the two lead screws 8 to rotate synchronously. Then, under the limit of the two sliding grooves, the two sliding seats 9 threadedly connected to the two lead screws 8 will control the delivery plate 2 to move outward automatically. In this way, the printed product on the printing platform 3 can be moved horizontally to the outside, making it easier to take the printed product and preventing it from being damaged by the narrow space inside the equipment when taking it out;

[0033] In this embodiment, in order to drive the printing platform 3 to move up and down, a lifting mechanism is provided, which includes:

[0034] Guide rail 15, two-way cylinder 16, the guide rail 15 is fixedly connected to the top outer wall of the delivery plate 2, and the two-way cylinder 16 is fixedly installed on the top outer wall of the guide rail 15;

[0035] Two movable blocks 17, the two movable blocks 17 are fixed on the two piston ends of the bidirectional cylinder 16 in sequence, and the two movable blocks 17 are both slidably connected to the guide rail 15;

[0036] Two linkage oblique rods 18, the two linkage oblique rods 18 are symmetrically hinged to the top of the two movable blocks 17, the top ends of the two linkage oblique rods 18 are hinged to the bottom of the printing platform 3, and the two linkage oblique rods 18 are arranged in a cross-non-contact manner;

[0037] When the lifting mechanism is in use: the two piston rods of the bidirectional cylinder 16 are synchronously contracted or extended to control the two movable blocks 17 to slide on the guide rail 15 and move closer to or away from each other, and then under the linkage articulation effect of the two linkage inclined rods 18, the printing platform 3 can be lifted and lowered.

[0038] Example 2, reference Figure 1-2 This embodiment is optimized based on the first embodiment, specifically: a working cylinder device for 3D printing equipment, further comprising a cleaning mechanism, the cleaning mechanism comprising:

[0039] A chute and a threaded rotating rod 4, wherein the chute is provided on the inner wall of the back of the 3D printing device body 1, and the threaded rotating rod 4 is rotatably installed in the chute;

[0040] The cleaning brush rod 5 is threadedly connected to the threaded rotating rod 4. The outer wall of the cleaning brush rod 5 is slidably connected to the inner wall of the slide groove. The bottom of the cleaning brush rod 5 is provided with evenly distributed bristles, and all the bristles can contact the surface of the printing platform 3;

[0041] The motor bracket 6 and the upper servo motor 7 are welded to the side wall of the 3D printing device body 1, and the upper servo motor 7 is fixedly mounted on the side wall of the motor bracket 6. The output shaft of the upper servo motor 7 passes through the motor bracket 6 and is coaxially fixedly connected to one end of the threaded rotating rod 4 through a coupling;

[0042] During the specific implementation of this embodiment: the threaded rotating rod 4 is driven to rotate by the upper servo motor 7, and then the cleaning brush rod 5 threadedly connected to the threaded rotating rod 4 will reciprocate on the surface of the printing platform 3 to effectively clean the dust and impurities on its surface. This facilitates automatic cleaning of the printing platform 3 after printing is completed, reduces the burden of manual cleaning, and improves cleaning efficiency and cleaning quality.

[0043] The working principle of the present invention is as follows: First, during the product printing stage, the two piston rods of the bidirectional cylinder 16 are synchronously contracted or extended to control the two movable blocks 17 to slide on the guide rail 15 and move closer to or away from each other. Subsequently, under the linkage and articulation effect of the two linkage inclined rods 18, the printing platform 3 can be raised and lowered to facilitate the product printing process;

[0044] Secondly, when printing is completed, the two worms 14 are driven to rotate by the lower servo motor 12, and then the two worm wheels 10 engaged with the two worms 14 drive the two lead screws 8 to rotate synchronously. Then, under the limit of the two sliding grooves, the two sliding seats 9 threadedly connected to the two lead screws 8 will control the delivery plate 2 to move outward automatically, so that the printed product on the printing platform 3 can be moved horizontally to the outside, making it convenient to take the printed product and prevent it from being damaged by the narrow space inside the equipment when taking it out. After the product is taken out, the two worms 14 are driven to rotate in the opposite direction by the lower servo motor 12, so that the delivery plate 2 can control the printing platform 3 to return to the inside;

[0045] Finally, after the product is taken out and the printing platform 3 returns to the inside, the upper servo motor 7 drives the threaded rotating rod 4 to rotate, and then the cleaning brush rod 5 threadedly connected to the threaded rotating rod 4 will reciprocate on the surface of the printing platform 3 to effectively clean the dust and impurities on its surface. This facilitates automatic cleaning of the printing platform 3 after printing is completed, reduces the burden of manual cleaning, and improves cleaning efficiency and cleaning quality.

[0046] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A working cylinder device for a 3D printing device, comprising a delivery plate (2) and a printing platform (3) arranged in a 3D printing device body (1), characterized in that: It also includes a pushing mechanism, a cleaning mechanism and a lifting mechanism; The cleaning mechanism comprises a slide groove provided on the inner wall of the back side of the 3D printing device body (1), a threaded rotating rod (4) rotatably mounted in the slide groove, a cleaning brush rod (5) threadedly connected to the threaded rotating rod (4), a motor bracket (6) welded to the side wall of the 3D printing device body (1), and an upper servo motor (7) fixedly mounted on the side wall of the motor bracket (6); The pushing mechanism comprises a driving assembly, two sliding grooves provided on the inner wall of the bottom of the 3D printing device body (1), two lead screws (8) rotatably installed in the two sliding grooves in sequence, two sliding seats (9) threadedly connected to the two lead screws (8) in sequence, and two worm gears (10) fixedly sleeved on the two lead screws (8) in sequence.

2. A working cylinder device for 3D printing equipment according to claim 1, characterized in that: The outer wall of the cleaning brush rod (5) is slidably connected to the inner wall of the slide groove, and the bottom of the cleaning brush rod (5) is provided with evenly distributed bristles. The output shaft of the upper servo motor (7) passes through the motor bracket (6) and is coaxially fixedly connected to one end of the threaded rotating rod (4) through a coupling.

3. A working cylinder device for 3D printing equipment according to claim 1, characterized in that: The outer walls of the two sliding seats (9) are respectively slidably connected to the inner walls of the two sliding grooves, and the top outer walls of the two sliding seats (9) are fixedly connected to the bottom outer wall of the delivery plate (2).

4. A working cylinder device for 3D printing equipment according to claim 1, characterized in that: The driving assembly comprises a carrier (11) fixedly connected to the outer wall of the back side of the 3D printing device body (1), a lower servo motor (12) fixedly mounted on the side wall of the carrier (11), a transmission shaft (13) rotatably mounted on the carrier (11), and two worms (14) fixedly sleeved on the transmission shaft (13) in sequence.

5. A working cylinder device for 3D printing equipment according to claim 4, characterized in that: The output shaft of the lower servo motor (12) passes through the carrier (11) and is coaxially fixedly connected to one end of the transmission shaft (13) through a coupling, and the two worms (14) are respectively engaged with the two worm wheels (10).

6. The working cylinder device for 3D printing equipment according to claim 1, characterized in that: The lifting mechanism comprises a guide rail (15) fixedly connected to the top outer wall of the delivery plate (2), a bidirectional cylinder (16) fixedly mounted on the top outer wall of the guide rail (15), two movable blocks (17) fixed on the two piston ends of the bidirectional cylinder (16), and two linkage oblique rods (18) symmetrically hinged to the tops of the two movable blocks (17).

7. A working cylinder device for 3D printing equipment according to claim 6, characterized in that: The two movable blocks (17) are both slidably connected to the guide rail (15), the top ends of the two linked oblique rods (18) are both hinged to the bottom of the printing platform (3), and the two linked oblique rods (18) are arranged in a cross-non-contact manner.

Images