Manual and automatic opening and closing door assembly of 3D printer

Abstract

The utility model discloses a 3D printer manual and automatic opening and closing door assembly, and relates to the technical field of 3D printing, the 3D printer manual and automatic opening and closing door assembly comprises a door outer frame arranged on one side of a printer rack, a damping hinge is hinged between the door outer frame and the printer rack, an inner upper frame is arranged in the door outer frame, an inner groove is formed in the inner wall of the inner upper frame, and the inner wall of the inner upper frame is provided with an outer groove. An upper glass plate is bonded to the interior of the inner groove through glue, a lower glass plate is arranged below the upper glass plate, the lower glass plate is connected with the inner upper frame through a mounting piece, and the outer door frame and the inner upper frame are connected through a driving piece; the driving piece is used for driving the inner upper frame and the upper glass plate to rotate and is matched with the lower glass plate to achieve opening and closing operation of the 3D printer. The printer has the functions of manual opening and automatic opening, so that a user can manually open and close the outer frame during power-off maintenance, and the servo motor can be driven to drive the embedded glass plate to move when the outer frame is in a door closing state, so that a printed piece can be smoothly moved out of the printer.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing technology, specifically a manual / automatic door opening and closing assembly for a 3D printer. Background Technology

[0002] 3D printing is a rapid prototyping technology that uses digital model files as a basis and special materials such as wax or plastic to create three-dimensional objects layer by layer. Currently, most 3D printers use sealed enclosures with purely manual glass doors. However, 3D printers are rapidly moving towards full automation, and printers need to be compatible with a variety of materials. When users use high-end materials that require high printing chamber temperatures and must be printed with a sealed door, the unpowered glass door will hinder the printer's automated printing operation, making it less practical.

[0003] Based on this, a manual / automatic door opening and closing assembly for 3D printers is now provided, which can eliminate the drawbacks of existing technical solutions. Utility Model Content

[0004] The purpose of this invention is to provide a manual / automatic door assembly for a 3D printer, in order to solve the problem in the background art where a purely manual glass door would hinder the automated printing operation of the printer.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A manual / automatic door assembly for a 3D printer includes an outer door frame mounted on one side of the printer frame. A damping hinge is hinged between the outer door frame and the printer frame. The damping hinge is mounted on the outer wall of the outer door frame by several bolts. An inner upper frame is provided inside the outer door frame. An inner groove is formed on the inner wall of the inner upper frame. An upper glass plate is glued to the inside of the inner groove. A lower glass plate is provided below the upper glass plate. The lower glass plate is connected to the inner upper frame by a mounting component. The outer door frame and the inner upper frame are connected by a driving component. The driving component is used to drive the inner upper frame and the upper glass plate to rotate and cooperate with the lower glass plate to realize the opening and closing operation of the 3D printer.

[0007] Preferably, the mounting component includes symmetrically arranged lower connecting rods, with grooves formed on opposite sides of the two lower connecting rods. The interior of the grooves is bonded to the lower glass plate with adhesive. A first connecting lug is fixedly connected to the lower end of the inner upper frame, and a second connecting lug is fixedly provided on the top of each of the lower connecting rods. The first connecting lug is installed on one side of the second connecting lug by screws and anti-loosening nuts.

[0008] Preferably, the driving component includes a through hole at the top of the inner upper frame, with flange bearings installed at both ends of the through hole. A guide shaft is installed inside the flange bearing and is located inside the through hole. Both ends of the guide shaft extend to the outside of the door frame and are positioned on the door frame through shaft holes. A driven sector tooth is fixedly installed on one side of the inner upper frame. The driven sector tooth is sleeved on the outside of the guide shaft. A driving gear is meshed on one side of the driven sector tooth. The driving gear is connected to the output end of the servo motor.

[0009] Preferably, the upper glass plate and the lower glass plate are compatible in shape and style.

[0010] Preferably, a third connecting lug is fixedly provided at the bottom of each of the lower connecting rods, and a rubber wheel is rotatably provided on the opposite side of each of the two third connecting lugs.

[0011] Preferably, the inner sidewall of the door frame is provided with a moving groove adapted to the rubber wheel.

[0012] Preferably, a reduction gearbox is provided on the outer side of the driven sector gear and the driving gear, and the servo motor is fixedly mounted on the reduction gearbox.

[0013] Preferably, there are two states: State 1: When the servo motor is not in the start state, the outer frame, inner upper frame, upper glass plate and lower glass plate of the door are all in a relatively stationary state. At this time, the human hand is the power source, and the outer frame of the door rotates horizontally around the damping hinge.

[0014] State 2: When the servo motor is in the start state, the printer frame, door frame and damping hinge are all in a relatively stationary state, and the inner upper frame rotates around the guide shaft.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] This utility model provides a manual / automatic door opening and closing component for a 3D printer. It features a combined outer and inner frame design, offering both manual and automatic opening functions. The external servo motor is designed separately, allowing the user to manually open and close the outer frame during power outage maintenance, achieving a 180-degree opening angle for convenient repairs. Furthermore, during automated 3D printer production, even when the door is closed, the component can drive the servo motor to move the embedded glass plate, facilitating smooth removal of printed parts from the printer by integrating with the printer's self-moving part module, significantly improving production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the printer frame and door outer frame of this utility model.

[0018] Figure 2 This is a complete assembly diagram of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of this utility model when it is automatically opened.

[0020] Figure 4 This is an exploded structural diagram of the present invention.

[0021] Figure 5 This is a partial schematic diagram of the inner upper frame of this utility model.

[0022] Figure label annotations: 1. Printer frame; 2. Door outer frame; 3. Damping hinge; 4. Inner upper frame; 5. Inner groove; 6. Upper glass plate; 7. Lower glass plate; 8. Lower connecting rod; 9. First connecting ear; 10. Second connecting ear; 11. Through hole; 12. Flange bearing; 13. Guide shaft; 14. Driven sector gear; 15. Servo motor; 16. Third connecting ear; 17. Rubber wheel; 18. Gearbox. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] In this embodiment, as Figure 1 — Figure 5 As shown, a manual / automatic door assembly for a 3D printer includes an outer door frame 2 located on one side of the printer frame 1. A damping hinge 3 is hinged between the outer door frame 2 and the printer frame 1. The damping hinge 3 is installed on the outer wall of the outer door frame 2 by several bolts for easy disassembly and assembly. An inner upper frame 4 is provided inside the outer door frame 2. An inner groove 5 is formed on the inner wall of the inner upper frame 4. An upper glass plate 6 is glued to the inside of the inner groove 5. A lower glass plate 7 is provided below the upper glass plate 6 and is connected to the inner upper frame 4 by a mounting component for easy installation. To facilitate subsequent maintenance operations, the outer frame 2 and the inner upper frame 4 are connected by a drive component. The drive component is used to drive the inner upper frame 4 and the upper glass plate 6 to rotate and cooperate with the lower glass plate 7 to realize the opening and closing operation of the 3D printer. This component integrates manual and automatic opening functions. When the 3D printer is working according to the preset program, the glass plate can open and close automatically without frequent manual operation, reducing labor intensity. In special circumstances such as printer debugging, maintenance or sudden power failure, the user can quickly switch to manual operation and directly control the opening and closing of the outer frame 2, which is quite practical.

[0025] Among them, such as Figure 4As shown, the mounting components include symmetrically arranged lower connecting rods 8. Grooves are provided on opposite sides of the two lower connecting rods 8. The interior of the grooves is glued to the lower glass plate 7 to facilitate fixing the position of the glass plate. The lower end of the inner upper frame 4 is fixedly connected to a first connecting ear 9, and the top of each lower connecting rod 8 is fixedly provided with a second connecting ear 10. The first connecting ear 9 is installed on one side of the second connecting ear 10 by screws and anti-loosening nuts. The screws and anti-loosening nuts need to be tightened to the corresponding positions to ensure that the first connecting ear 9 and the second connecting ear 10 can move relative to each other, so that the lower glass plate 7 can be folded smoothly and avoid interference.

[0026] Among them, such as Figure 4 and Figure 5 As shown, the driving component includes a through hole 11 at the top of the inner upper frame 4. Flange bearings 12 are installed at both ends of the through hole 11 to ensure that the inner upper frame 4 can rotate while the guide shaft 13 does not rotate, thus maintaining its fixed position. The guide shaft 13 is housed inside the flange bearings 12 and is located within the through hole 11. Both ends of the guide shaft 13 extend to the outside of the outer frame 2 and are positioned on the outer frame 2 via shaft holes. The guide shaft 13 is fixed to the outer frame 2 with bolts and cannot rotate. The guide shaft 13 confines the inner upper frame 4 within the outer frame 2, serving as a limiting mechanism. A driven sector tooth 14 is fixedly installed on one side of the inner upper frame 4, and the driven sector tooth 14 is sleeved on the guide shaft 12. On the outside of 3, a rolling bearing or self-lubricating bushing is fitted onto the guide shaft 13 and rigidly connected to the inner upper frame 4 by bolts, so that the driven sector tooth 14 can rotate freely around the guide shaft 13. A drive gear is meshed on one side of the driven sector tooth 14. The drive gear is connected to the output end of the servo motor 15. The rotation direction, angle and speed of the servo motor 15 are set according to the actual working environment to avoid the situation where the gear transmission cannot operate normally. The servo motor 15 drives the drive gear to rotate, which in turn drives the driven sector tooth 14 to rotate, which in turn drives the inner upper frame 4 to rotate, so as to achieve the folding and lifting effect of the glass plate. When the power is off, the servo motor 15 can be disassembled to avoid affecting the smoothness of manual operation.

[0027] Among them, such as Figure 1 — Figure 4 As shown, the upper glass plate 6 and the lower glass plate 7 are matched in shape and style. Both the upper glass plate 6 and the lower glass plate 7 are designed with glass structures commonly used in printing to ensure the normal use of the component.

[0028] Among them, such as Figure 4 As shown, the bottom of the lower connecting rod 8 is fixedly provided with a third connecting lug 16. On the opposite side of the two third connecting lugs 16, a rubber wheel 17 is rotatably provided. The rubber wheel 17 is rotatably mounted on the mounting block. The mounting block is detachably connected to the third connecting lug 16 by bolts, which is convenient for replacement and assembly. When the inner upper frame 4 rotates, the lower connecting rod 8 drives the rubber wheel 17 to roll along the moving groove to ensure smooth guidance.

[0029] Among them, such as Figure 3 As shown, a moving groove adapted to the rubber wheel 17 is provided on the inner side wall of the door frame 2, so that the rubber wheel 17 can roll inside the moving groove and play a guiding role. The inner wall of the moving groove is relatively smooth, so the frictional resistance is small and avoids affecting the stability of the automatic mode.

[0030] Among them, such as Figure 2 As shown, a reduction gearbox 18 is provided on the outside of the driven sector gear 14 and the driving gear. The servo motor 15 is fixedly mounted on the reduction gearbox 18. The reduction gearbox 18 is equipped with a reduction gear set, which is the prior art. The reduction gearbox 18 can be mounted on the printer frame 1. The output end of the reduction gearbox 18 passes through the frame and is fixedly connected to the driving gear. When the outer frame 2 of the door is closed, the driven sector gear 14 and the driving gear mesh with each other. The servo motor 15, the reduction gearbox 18, the driving gear and the printer frame 1 can be detachably connected for easy separation, so that the outer frame 2 of the door is not obstructed when it is manually opened and closed, and the rotation effect of the outer frame 2 of the door in manual mode is avoided.

[0031] When installing this component, first install the damping hinge 3 into the left hole of the outer frame 2. Then, apply glue to the inner groove 5 of the inner upper frame 4 and insert the upper glass plate 6 into the inner upper frame 4. Apply glue to the groove of the lower connecting rod 8 and install it on both sides of the lower glass plate 7. Then, with the help of screws and lock nuts, fix the lower connecting rod 8 with the lower glass plate 7 installed to the first connecting ear 9 at the lower end of the inner upper frame 4. Install the rubber wheel 17 to the third connecting ear 16 at the lower end of the lower connecting rod 8. Next, snap the flange bearing 12 into the through holes 11 on the left and right sides of the inner upper frame 4. Pass the guide shaft 13 through the two flange bearings 12 and fix the driven sector tooth 14 with bolts. Then, embed the installed inner upper frame 4 into the outer frame 2 and fix the position of the guide shaft 13. Finally, assemble the other half of the damping hinge 3 onto the printer frame 1. This completes the installation of the entire component.

[0032] When in use, when the servo motor 15 is not in the start state, the outer frame 2, the inner upper frame 4, the upper glass plate 6 and the lower glass plate 7 are all in a relatively stationary state. At this time, the human hand is the power source, and the outer frame 2 rotates horizontally around the damping hinge 3. When the servo motor 15 is in the start state, the printer frame 1, the outer frame 2 and the damping hinge 3 are all in a relatively stationary state, and the inner upper frame 4 rotates around the guide shaft 13.

[0033] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A 3D printer hand automatic opening and closing door assembly, characterized in that, The utility model relates to a 3D printer door frame, including the door frame (2) of setting in the one side of printer frame (1), the door frame (2) and printer frame (1) between hinged have damping hinge (3), the damping hinge (3) is installed on the outer wall of door frame (2) through a plurality of bolts, the inside of door frame (2) is provided with inner upper frame (4), the inner wall of inner upper frame (4) is provided with inner groove (5), the inside of inner groove (5) is bonded with upper glass plate (6) through glue, the lower of upper glass plate (6) is provided with lower glass plate (7), lower glass plate (7) is connected with inner upper frame (4) through mounting piece, the door frame (2) and inner upper frame (4) are connected through driving piece, and the driving piece is used to drive inner upper frame (4), upper glass plate (6) rotates and cooperates lower glass plate (7) to realize the opening and closing operation of 3D printer.

2. A 3D printer hand automatic opening and closing door assembly according to claim 1, characterized in that, The mounting piece includes the lower connecting rod (8) of setting up symmetrically, the opposite side of two lower connecting rod (8) is provided with recess, the recess is bonded with lower glass plate (7) through glue in the inside, the lower end of inner upper frame (4) is fixedly connected with first connecting lug (9), the top of lower connecting rod (8) is fixedly provided with second connecting lug (10), and the first connecting lug (9) is installed on one side of second connecting lug (10) through screw and lock nut.

3. A 3D printer hand automatic opening and closing door assembly according to claim 2, characterized in that, The driving piece includes the through -hole (11) of setting in inner upper frame (4) top, the flange bearing (12) of being installed to the left and right two ends of through -hole (11), the inside of flange bearing (12) is provided with guide shaft (13), guide shaft (13) is arranged in the inside of through -hole (11), the both ends of guide shaft (13) are extended to the outside of door frame (2) and are positioned on the door frame (2) through the cooperation of shaft hole, one side of inner upper frame (4) is fixedly provided with driven fan tooth (14), driven fan tooth (14) is sleeved on the outside of guide shaft (13), one side of driven fan tooth (14) is engaged with driving gear, and the output end of servo motor (15) is connected with driving gear.

4. The 3D printer hand automatic opening and closing door assembly according to claim 2, characterized in that, The shape of the upper glass plate (6) and the lower glass plate (7) is compatible.

5. The 3D printer hand automatic opening and closing door assembly according to claim 2, characterized in that, The bottom of the lower connecting rod (8) is fixedly provided with a third connecting lug (16), and the opposite sides of the two third connecting lugs (16) are rotatably provided with rubber wheels (17).

6. A 3D printer hand automatic opening and closing door assembly according to claim 5, characterized in that, The inner side wall of the door frame (2) is provided with a moving groove matched with the rubber wheel (17).

7. The 3D printer hand automatic opening and closing door assembly according to claim 3, characterized in that, The outside of the driven fan tooth (14) and the driving gear is provided with a speed reducer (18), and the servo motor (15) is fixedly installed on the speed reducer (18).

8. The 3D printer hand automatic opening and closing door assembly according to claim 3, characterized in that, It includes two states: State one: when the servo motor (15) is not in the starting state, the door frame (2), the inner upper frame (4), the upper glass plate (6) and the lower glass plate (7) are in a relatively static state, the human hand is a power source at this time, and the door frame (2) rotates horizontally around the damping hinge (3). State two: when the servo motor (15) is in the starting state, the printer frame (1), the door outer frame (2) and the damping hinge (3) are in the relatively static state, and the inner upper frame (4) rotates around the guide shaft (13).

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