A silo gate for a 3D printing device

Abstract

The present invention relates to a silo gate of a 3D printing device, comprising a silo box body, wherein a closing cover one and a closing cover two are arranged on the top of the silo box body, and the closing cover one and the closing cover two are symmetrical to each other, a circular hole is opened at the bottom of the silo box body, a discharge pipe is fixedly connected in the circular hole, and a closing locking module is arranged on the outside of the silo box body, an isolation frame is arranged on the outside of the closing locking module, and the isolation frame is fixedly connected to the side opposite to the outside of the silo box body, a hole is opened on the closing cover two, and an observation and feeding module is arranged in the hole. The silo gate of a 3D printing device proposed by the present invention can realize the rapid opening and closing of the silo box body, and ensure the sealing effect of the silo box body when the closing cover one and the closing cover two are closed, while ensuring that the closing cover one and the closing cover two can be conveniently opened and closed, the silo box body forms an effective closed environment, and prevents external impurities from entering the silo box body to pollute materials, thereby ensuring the quality of printed objects.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing, and in particular to a silo gate of a 3D printing device. Background Art

[0002] A 3D printer is a rapid manufacturing device that creates three-dimensional objects by stacking materials layer by layer. It is widely used in product design, prototyping, parts manufacturing and other fields, with the advantages of high efficiency, flexibility and precision. 3D printing technology is constantly developing and is expected to play an important role in more fields in the future.

[0003] The opening and closing measures of the silo gate of the existing 3D printing device are relatively simple, and the sealing effect after closing is poor, resulting in a poor sealing effect of the silo, causing impurities in the environment to contaminate the materials in the silo, greatly affecting the use of materials by the printing device, thereby affecting the printing quality of the device. Summary of the invention

[0004] The invention discloses a silo gate of a 3D printing device, aiming to solve the technical problem of poor closing effect of the silo gate in the background technology.

[0005] A silo gate of a 3D printing device proposed in the present invention comprises a silo box body, a closure cover 1 and a closure cover 2 are arranged on the top of the silo box body, and the closure cover 1 and the closure cover 2 are symmetrical to each other, a circular hole is opened at the bottom of the silo box body, a discharge pipe is fixedly connected in the circular hole, and a closure locking module is arranged outside the silo box body, an isolation frame is arranged outside the closure locking module, and the isolation frame is fixedly connected to the side opposite to the outside of the silo box body, a hole is opened on the closure cover 2, and an observation and feeding module is arranged in the hole. By providing a silo box, a closing cover one, a closing cover two, a discharge pipe, an isolation frame, a closing locking module, and an observation and feeding module, the device can realize the rapid opening and closing of the silo box using the closing locking module, and ensure the sealing effect of the silo box when the closing cover one and the closing cover two are closed. While ensuring that the closing cover one and the closing cover two can be opened and closed conveniently, the silo box forms an effective closed environment, blocking external impurities from entering the silo box to pollute the materials, thereby ensuring the quality of printed items.

[0006] In a preferred embodiment, the closing and locking module includes two symmetrical fixing seats, which are respectively located on two sides of the silo box body away from the isolation frame, and the two fixing seats are fixedly connected to the side opposite to the silo box body, and the outsides of the two fixing seats are fixedly connected to two symmetrical mounting platforms, and the mounting platforms are each provided with a narrow opening, and the two narrow openings on the same side are movably connected to the same shaft rod, and the outsides of the shaft rod are fixedly connected to connecting pieces, and the two connecting pieces are respectively fixedly connected to the opposite sides of the closing cover one and the closing cover two; the upper side of the silo box body is fixedly connected to a lower sealing gasket, and the bottom of the closing cover one and the closing cover two is fixedly connected to an upper sealing gasket, the bottom of the upper sealing gasket is in contact with the upper side of the lower sealing gasket, and the mounting platforms are each provided with a narrow opening. There is a notch, and the outside of the shaft is fixedly connected with a disc, and the disc is located in the notch, and the outside of the disc is slidably connected to the inner wall of the notch, and the outside of one of the two mounting platforms on the same side is fixedly connected with a stopper, and the stopper is located on the side of the mounting platform away from the silo box body; the disc on the same side as the stopper is fixedly connected with a short shaft on the side away from the silo box body, and the outside of the mounting platforms on the same side is provided with an arc groove, and the inner wall of the arc groove is slidably connected to the outside of the short shaft, and the outside of the two short shafts is movably connected with a connecting rod 1, and the isolation frame is provided with openings on both sides close to the fixed seat, and the inner walls of the openings are respectively slidably connected to the outside of the two connecting rods 1, and the side of the silo box body close to the isolation frame is fixedly connected with two symmetrical cylinders, and the cylinders are fixedly connected to the side of the silo box body close to the isolation frame. The inner wall of the cylinder on one side close to the silo box body is movably connected with a central axis; the outside of the central axis is fixedly connected with a coil spring, and the end of the coil spring away from the central axis is fixedly connected to the inner wall of the cylinder on the same side, and the outside of the central axis is fixedly connected with a connecting rod 2, and the end of the connecting rod 2 away from the central axis is movably connected to the end of the connecting rod 1 on the same side away from the short axis, and the outsides of the two connecting rods 2 are movably connected with a transmission rod; the side of the silo box body close to the isolation frame is fixedly connected with two symmetrical slide rails, and sliders are slidably connected in the slide rails, and the sides of the sliders away from the slide rails are fixedly connected with short rods, and the outsides of the short rods on the same side are movably connected to the end of the transmission rod away from the connecting rod 2, and the slide rails and the transmission rods are both located inside the isolation frame; the interior of the isolation frame is provided with Rectangular frame, the rectangular frame is fixedly connected to the side opposite to the silo box body, a slot is opened on the rectangular frame, and the same pressing rod is slidably connected in the slot, the outside of the pressing rod is fixedly connected to a sliding block, the outside of the sliding block is slidably connected to the inner wall of the rectangular frame, a spring 1 is surrounded by the outside of the pressing rod, the spring 1 is located below the sliding block, one end of the spring 1 is fixedly connected to the bottom inner wall of the rectangular frame, and the other end is fixedly connected to the bottom of the sliding block, and the side of the sliding block away from the silo box body is movably connected with two symmetrical connecting rods 3, and the ends of the two connecting rods 3 away from the sliding block are both movably connected to the outside of the short rod on the same side, a notch is opened on the upper side of the isolation frame, the inner wall of the notch is slidably connected to the outside of the pressing rod, and a pressing sheet is fixedly connected to the upper side of the pressing rod.

[0007] By providing a closing locking module, the closing locking module utilizes a disc and a short shaft to make the device more convenient in the process of opening the closing cover one and the closing cover two. When the disc is rotated to ninety degrees, the device can automatically complete the operation of opening and closing the closing cover one and the closing cover two with the help of a coil spring and spring one, making the operation more labor-saving.

[0008] In a preferred embodiment, the observation and feeding module includes a circular ring, the outside of which is fixedly connected to the inner wall of the hole on the closed second, the upper side of the circular ring is fixedly connected to an annular frame, the upper side of the annular frame is provided with a circular groove, the bottom inner wall of the circular groove is provided with a circular cutout, an observation cover is slidably connected in the circular cutout, the side of the observation cover away from the circular ring is connected to the bottom inner wall of the circular groove by a hinge, and the bottom inner wall of the circular cutout is provided with a concave hole; a pushing block is slidably connected to the inner wall of the concave hole, the upper side of the pushing block is in contact with the bottom of the observation cover, the bottom of the pushing block is fixedly connected to a spring second, and the spring second is away from the pushing block. One end of the moving block is fixedly connected to the bottom inner wall of the concave hole, and the bottom inner wall of the circular groove is provided with two symmetrical rectangular openings, and the moving blocks are slidably connected in the rectangular openings, and the side of the moving block opposite to the inner wall of the rectangular opening is fixedly connected with a spring three; the upper side of the moving block is movably connected with a follow-up sleeve, and the same thin rod is slidably connected in the two follow-up sleeves, and the outside of the thin rod is fixedly connected with a locking piece, the outside of the locking piece is clamped with the outside of the observation cover, and the locking piece is located between the two follow-up sleeves, and the bottom inner wall of the circular groove is provided with a receiving groove, and the inner wall of the receiving groove is slidably connected to the bottom of the locking piece.

[0009] By providing an observation and feeding module, the observation and feeding module uses a locking part and an observation cover to enable the device to add materials in harsh environments without completely opening the silo box to perform the feeding operation, which greatly reduces the risk of material hand-held environmental impurity contamination. The observation cover made of transparent material can also help the operator quickly determine the material inventory status in the silo box.

[0010] From the above, it can be seen that the silo gate of a 3D printing device provided by the present invention can realize the rapid opening and closing of the silo box body, and ensure the sealing effect of the silo box body when the closing cover one and the closing cover two are closed. While ensuring that the closing cover one and the closing cover two can be conveniently opened and closed, the silo box body forms an effective closed environment, blocking external impurities from entering the silo box body to pollute the materials, thereby ensuring the quality of the printed objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the overall structure diagram of the present invention; Figure 2 It is a cross-sectional structural diagram of the present invention; Figure 3 This is a structural diagram of the closed locking module of the present invention; Figure 4This is a structural diagram of the isolation frame of the present invention; Figure 5 It is a structural diagram of the disc and rectangular frame of the present invention; Figure 6 This is the structural diagram of the observation and feeding module of the present invention; Figure 7 This is a structural diagram of the locking member of the present invention.

[0012] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Bin box; 2. Closing cover 1; 3. Closing cover 2; 4. Discharge pipe; 5. Isolation frame; 6. Closing locking module; 601. Fixing seat; 602. Mounting table; 603. Connecting piece; 604. Shaft; 605. Lower sealing gasket; 606. Upper sealing gasket; 607. Notch; 608. Disc; 609. Stopper; 610. Arc groove; 611. Short shaft; 612. Connecting rod 1; 613. Cylinder; 614. Middle shaft; 615. Connecting rod 2; 616. Coil spring; 617. Transmission rod; 618. Slide rail; 61 9. Slider; 620. Short rod; 621. Connecting rod three; 622. Rectangular frame; 623. Pressing rod; 624. Sliding block; 625. Spring one; 626. Pressing sheet; 7. Observation and feeding module; 701. Ring; 702. Ring frame; 703. Circular notch; 704. Circular cutout; 705. Observation cover; 706. Pushing block; 707. Spring two; 708. Rectangular mouth; 709. Moving block; 710. Spring three; 711. Follow-up sleeve; 712. Thin rod; 713. Locking piece; 714. Receiving groove. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0014] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0015] In the description of the present application, the term "for example" is used to mean "used as an example, illustration or description". Any embodiment described as "for example" in the present application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is given to enable any technician in the field to implement and use the present invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present invention can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid unnecessary details to obscure the description of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0016] A silo gate of a 3D printing device disclosed in the present invention is mainly used in scenarios where the silo gate has a poor closing effect.

[0017] Reference Figure 1-7 A silo gate of a 3D printing device comprises a silo box body 1, a closing cover 1 2 and a closing cover 2 3 are arranged above the silo box body 1, and the closing cover 1 2 and the closing cover 2 3 are symmetrical to each other, a round hole is opened at the bottom of the silo box body 1, a discharge pipe 4 is connected in the round hole by bolts, and a closing locking module 6 is arranged outside the silo box body 1, an isolation frame 5 is arranged outside the closing locking module 6, and the isolation frame 5 is connected to the side opposite to the outside of the silo box body 1 by bolts, a hole is opened on the closing cover 2 3, and an observation and feeding module 7 is arranged in the hole. Specifically, when it is necessary to fill the silo box 1 with printed materials, the closing and locking module 6 in the isolation frame 5 is used to rotate the closing cover 1 2 and the closing cover 2 3 provided on the silo box 1 to the two sides of the silo box 1 by 180 degrees, so that the silo box 1 can be completely opened. After filling the materials, the closing and locking module 6 is used again to close the closing cover 1 2 and the closing cover 2 3 to seal the silo box 1. When the printing environment is poor, the observation and feeding module 7 is used to confirm the material inventory in the silo box 1. The device recognizes and replenishes a certain amount of materials through observation and the feeding module 7. The replenished materials will be supplied to the printing device through the discharge pipe 4. The device uses the closing locking module 6 to realize the rapid opening and closing of the silo box 1, and ensures the sealing effect of the silo box 1 when the closing cover 1 2 and the closing cover 2 3 are closed. While ensuring that the closing cover 1 2 and the closing cover 2 3 can be opened and closed conveniently, the silo box 1 forms an effective closed environment, blocking external impurities from entering the silo box 1 to pollute the materials, thereby ensuring the quality of printed objects.

[0018] Reference Figure 3 , Figure 4 and Figure 5In a preferred embodiment, the closing locking module 6 includes two symmetrical fixing seats 601, the two fixing seats 601 are respectively located on the two sides of the silo box body 1 away from the isolation frame 5, the two fixing seats 601 are connected to the side opposite to the silo box body 1 by bolts, the outsides of the two fixing seats 601 are connected to two symmetrical mounting platforms 602 by bolts, and the mounting platforms 602 are each provided with a narrow opening, and the two narrow openings on the same side are both rotatably connected to the same shaft rod 604 through bearings, and the outsides of the shaft rod 604 are both connected to connecting members 603 by bolts, and the two connecting members 603 are respectively connected to the sides opposite to the closing cover 1 2 and the closing cover 2 3 by bolts; the upper side of the silo box body 1 is connected to the lower sealing gasket 60 by bolts 5. The bottom of the closing cover 1 2 and the closing cover 2 3 are both connected with an upper sealing gasket 606 by bolts, and the bottom of the upper sealing gasket 606 is in contact with the upper side of the lower sealing gasket 605, and a notch 607 is provided on the mounting platform 602. The outside of the shaft 604 is connected with a disc 608 by bolts, and the disc 608 is located in the notch 607. The outside of the disc 608 is slidably connected with the inner wall of the notch 607. The outside of one of the two mounting platforms 602 located on the same side is connected with a stopper 609 by bolts, and the stopper 609 is located on the side of the mounting platform 602 away from the silo box body 1; the side of the disc 608 on the same side as the stopper 609 away from the silo box body 1 is connected with a short shaft 611 by bolts, and the mounting platform 604 on the same side is connected with a stopper 609 by bolts. The outside of the mounting platform 602 is provided with an arc groove 610, the inner wall of the arc groove 610 is slidably connected to the outside of the short shaft 611, and the outside of the two short shafts 611 is rotatably connected to the connecting rod 612 through bearings. The isolation frame 5 has openings on both sides close to the fixed seat 601, and the inner walls of the openings are respectively slidably connected to the outside of the two connecting rods 612. The side of the silo box body 1 close to the isolation frame 5 is connected with two symmetrical cylinders 613 by bolts, and the inner wall of the cylinder 613 close to the silo box body 1 is rotatably connected to the central axis 614 through bearings; the outside of the central axis 614 is connected with a coil spring 616 by bolts, and the end of the coil spring 616 away from the central axis 614 is connected to the inner wall of the cylinder 613 on the same side by bolts. The outside of the shaft 614 is connected to the connecting rod 2 615 by bolts, and the end of the connecting rod 2 615 away from the middle axis 614 is rotatably connected to the end of the connecting rod 1 612 on the same side away from the short axis 611 through a bearing, and the outsides of the two connecting rods 615 are rotatably connected to the transmission rod 617 through a bearing; the side of the silo box body 1 close to the isolation frame 5 is connected to two symmetrical slide rails 618 by bolts, and the slide rails 618 are slidably connected with sliders 619, and the side of the slider 619 away from the slide rail 618 is connected to the short rod 620 by bolts, and the outside of the short rod 620 on the same side is rotatably connected to the end of the transmission rod 617 away from the connecting rod 2 615 through a bearing, and the slide rail 618 and the transmission rod 617 are both located inside the isolation frame 5;A rectangular frame 622 is provided inside the isolation frame 5, and the rectangular frame 622 is connected to the side opposite to the silo box body 1 by bolts. A slot is provided on the rectangular frame 622, and a pressing rod 623 is slidably connected in the slot. A sliding block 624 is connected to the outside of the pressing rod 623 by bolts. The outside of the sliding block 624 is slidably connected to the inner wall of the rectangular frame 622. A spring 625 is surrounded by the outside of the pressing rod 623. The spring 625 is located below the sliding block 624. One end of the spring 625 is connected to the rectangular frame. The bottom inner wall of 622 is connected by bolts, and the other end is connected to the bottom of the sliding block 624 by bolts, and the sliding block 624 is rotatably connected to two symmetrical connecting rods 621 on the side away from the silo box body 1 through a bearing, and the ends of the two connecting rods 621 away from the sliding block 624 are both rotatably connected to the outside of the short rod 620 on the same side through a bearing, and a notch is opened on the upper side of the isolation frame 5, and the inner wall of the notch is slidably connected to the outside of the pressing rod 623, and the upper side of the pressing rod 623 is connected to a pressing sheet 626 by bolts. ;

[0019] Specifically, when it is necessary to open the closing cover 1 2 and the closing cover 2 3, the pressing piece 626 is pressed, and the pressing piece 626 drives the sliding block 624 on the pressing rod 623 to overcome the elastic force of the spring 1 625 and slide downward, so that the sliding block 624 pulls the connecting rod 3 621 so that the short rod 620 connected to the connecting rod 3 621 drives the slider 619 to slide on the slide rail 618, so that the transmission rod 617 can pull the connecting rod 2 615 to overcome the torsion of the coil spring 616 and rotate with the central axis 614 as the axis, and the rotating connecting rod 2 615 pulls the connecting rod 1 612 so that the short axis 611 connected to the connecting rod 1 612 can drive the disk 608 to rotate with the shaft 604 as the axis, and after the disk 608 rotates 90 degrees, the pressing piece 626 is released, and the coil spring 616 and the spring 604 are pressed. Driven by connecting rod 1 625, short shaft 611 continues to rotate upward with disc 608 and finally stops on stop member 609. During the rotation of disc 608, shaft rod 604 connected to disc 608 drives closing cover 1 2 and closing cover 2 3 connected to connecting member 603 to rotate 180 degrees, so that closing cover 1 2 and closing cover 2 3 are opened, so that the silo box body 1 can be filled with materials. After filling, pressing piece 626 is pressed again. According to the above steps, connecting rod 1 612 will drive short shaft 611 to rotate 180 degrees again, so that closing cover 1 2 and closing cover 2 3 are closed, and short shaft 611 is stuck in arc groove 610, so that upper sealing gasket 606 and lower sealing gasket 605 on closing cover 1 2 and closing cover 2 3 are pressed and fitted against each other.

[0020] In specific application scenarios, the closing and locking module 6 is mainly suitable for the closing and locking link in the closing and locking process, that is, the closing and locking module 6 uses the disc 608 and the short shaft 611 to make the device more convenient in the process of opening the closing cover 1 2 and the closing cover 2 3. When the disc 608 is rotated to ninety degrees, the device can automatically complete the opening and closing operations of the closing cover 1 2 and the closing cover 2 3 with the help of the coil spring 616 and the spring 1 625, making the operation more labor-saving.

[0021] Reference Figure 6 and Figure 7 In a preferred embodiment, the observation and feeding module 7 includes a circular ring 701, the outer part of the circular ring 701 is connected to the inner wall of the hole on the closed part 3 by bolts, the upper side of the circular ring 701 is connected to a circular frame 702 by bolts, the upper side of the circular frame 702 is provided with a circular notch 703, the bottom inner wall of the circular notch 703 is provided with a circular cutout 704, an observation cover 705 is slidably connected in the circular cutout 704, the side of the observation cover 705 away from the circular ring 701 is connected to the bottom inner wall of the circular notch 703 by a hinge, and the bottom inner wall of the circular cutout 704 is provided with a concave hole; a pushing block 706 is slidably connected to the inner wall of the concave hole, the upper side of the pushing block 706 is in contact with the bottom of the observation cover 705, the bottom of the pushing block 706 is connected to a spring 707 by bolts, and the spring 707 is away from the pushing block 7 One end of 06 is connected to the bottom inner wall of the concave hole by bolts, and the bottom inner wall of the circular groove opening 703 is provided with two symmetrical rectangular openings 708, and moving blocks 709 are slidably connected in the rectangular openings 708, and the side of the moving block 709 opposite to the inner wall of the rectangular opening 708 is connected with a spring three 710 by bolts; the upper side of the moving block 709 is rotatably connected with a follower sleeve 711 through a bearing, and the same thin rod 712 is slidably connected in the two follower sleeves 711, and the outside of the thin rod 712 is connected with a locking piece 713 by bolts, and the outside of the locking piece 713 is clamped with the outside of the observation cover 705, and the locking piece 713 is located between the two follower sleeves 711, and the bottom inner wall of the circular groove opening 703 is provided with a receiving groove 714, and the inner wall of the receiving groove 714 is slidably connected to the bottom of the locking piece 713.

[0022] Specifically, when the external environment of the printing device is relatively bad, the material inventory in the silo box body 1 is observed through the transparent acrylic observation cover 705. When the material inventory in the silo box body 1 is about to run out, the locking piece 713 is pulled outward, and the thin rod 712 on the locking piece 713 pushes the follower sleeve 711 and enables the follower sleeve 711 to drive the moving block 709 to overcome the elastic force of the spring three 710 and move away from the observation cover 705. As the moving block 709 moves obliquely in the rectangular opening 708, under the restraint of the follower sleeve 711, the follower sleeve 711 rotates on the moving block 709 at an angle, so that the locking piece on the follower sleeve 711 713 can continue to move on the accommodating groove 714. After the locking piece 713 is completely removed from the observation cover 705, under the elastic force of the spring two 707, the spring two 707 pushes the pushing block 706 to push the observation cover 705 away from the circular cutout 704, thereby opening the observation cover 705 and quickly injecting the material into the silo box body 1 through the hole opened by the observation cover 705. After the filling is completed, the observation cover 705 is rotated so that the observation cover 705 pushes the locking piece 713 away and presses down the pushing block 706. After the observation cover 705 is completely entered into the circular cutout 704, the locking piece 713 locks the observation cover 705 again under the push of the spring three 710.

[0023] In specific application scenarios, the observation and filling module 7 is mainly suitable for the observation and filling links in the observation and filling process, that is, the observation and filling module 7 uses the locking piece 713 and the observation cover 705 to enable the device to add materials in harsh environments without fully opening the silo box 1 to achieve the filling operation, which greatly reduces the risk of material contamination by hand-held environmental impurities. The observation cover 705 made of transparent material can also help the operator quickly determine the material inventory in the silo box 1.

[0024] Working principle: when it is necessary to open the closing cover 1 2 and the closing cover 2 3, the pressing piece 626 is pressed, and the pressing piece 626 drives the sliding block 624 on the pressing rod 623 to overcome the elastic force of the spring 1 625 and slide downward, so that the sliding block 624 pulls the connecting rod 3 621 so that the short rod 620 connected to the connecting rod 3 621 drives the slider 619 to slide on the slide rail 618, so that the transmission rod 617 can pull the connecting rod 2 615 to overcome the torsion of the coil spring 616 and rotate with the central axis 614 as the axis, and the rotating connecting rod 2 615 pulls the connecting rod 1 612 so that the short axis 611 connected to the connecting rod 1 612 can drive the disc 608 to rotate with the shaft 604 as the axis, and after the disc 608 rotates ninety degrees, the release The pressing piece 626 is opened. Under the push of the coil spring 616 and the spring 1 625, the short shaft 611 continues to rotate upward with the disc 608 and finally stops on the stopper 609. During the rotation of the disc 608, the shaft 604 connected to the disc 608 drives the closing cover 1 2 and the closing cover 2 3 connected to the connecting piece 603 to rotate 180 degrees, so that the closing cover 1 2 and the closing cover 2 3 are opened, so that the silo box body 1 can be filled with materials. After the filling is completed, the pressing piece 626 is pressed again. According to the above steps, the connecting rod 1 612 will drive the short shaft 611 to rotate 180 degrees again, so that the closing cover 1 2 and the closing cover 2 3 are closed and closed, and the short shaft 611 is stuck in the arc groove 610, so that the closing cover 1 2 and the closing cover 2 3 are closed and closed. The upper sealing gasket 606 and the lower sealing gasket 605 on the cover 1 2 and the closing 2 3 are pressed and fitted against each other. When the external environment of the printing device is relatively bad, the material inventory in the silo box body 1 is observed through the transparent acrylic observation cover 705. When the material inventory in the silo box body 1 is about to run out, the locking member 713 is pulled outward, and the thin rod 712 on the locking member 713 pushes the follower sleeve 711 and enables the follower sleeve 711 to drive the moving block 709 to overcome the elastic force of the spring 3 710 and move in the direction away from the observation cover 705. As the moving block 709 moves obliquely in the rectangular opening 708, under the restraint of the follower sleeve 711, the follower sleeve 711 rotates on the moving block 709 to a certain angle. , so that the locking piece 713 on the follower sleeve 711 can continue to move on the accommodating groove 714. After the locking piece 713 is completely removed from the observation cover 705, under the elastic force of the second spring 707, the second spring 707 pushes the pushing block 706 to push the observation cover 705 away from the circular cutout 704, thereby opening the observation cover 705 and quickly injecting the material into the silo box body 1 through the hole opened by the observation cover 705. After the filling is completed, the observation cover 705 is rotated so that the observation cover 705 pushes the locking piece 713 away and presses down the pushing block 706. After the observation cover 705 is completely entered into the circular cutout 704, the locking piece 713 locks the observation cover 705 again under the push of the third spring 710.

[0025] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A silo gate for a 3D printing device, comprising a silo box (1), characterized in that: A closing cover 1 (2) and a closing cover 2 (3) are arranged above the silo box body (1), and the closing cover 1 (2) and the closing cover 2 (3) are symmetrical to each other. A circular hole is provided at the bottom of the silo box body (1), and a discharge pipe (4) is fixedly connected in the circular hole. A closing locking module (6) is provided outside the silo box body (1), and an isolation frame (5) is provided outside the closing locking module (6). The isolation frame (5) is fixedly connected to a side opposite to the outside of the silo box body (1). A hole is provided on the closing cover 2 (3), and an observation and feeding module (7) is provided in the hole.

2. The silo gate of a 3D printing device according to claim 1, characterized in that: The closing locking module (6) comprises two symmetrical fixing seats (601), the two fixing seats (601) are respectively located on two sides of the silo box body (1) away from the isolation frame (5), the two fixing seats (601) are fixedly connected to the opposite side of the silo box body (1), the outside of the two fixing seats (601) are fixedly connected to two symmetrical mounting platforms (602), the mounting platforms (602) are each provided with a narrow opening, the two narrow openings located on the same side are movably connected to the same shaft rod (604), and the outside of the shaft rod (604) is fixedly connected to a connecting piece (603), and the two connecting pieces (603) are respectively fixedly connected to the opposite side of the closing cover 1 (2) and the closing cover 2 (3).

3. The silo gate of a 3D printing device according to claim 2, characterized in that: The upper side of the silo box body (1) is fixedly connected to a lower sealing gasket (605), the bottoms of the closing cover 1 (2) and the closing cover 2 (3) are fixedly connected to upper sealing gaskets (606), the bottom of the upper sealing gasket (606) is in contact with the upper side of the lower sealing gasket (605), and a notch (607) is provided on the mounting platform (602), the outside of the shaft rod (604) is fixedly connected to a disc (608), the disc (608) is located in the notch (607), the outside of the disc (608) is slidably connected to the inner wall of the notch (607), and the outside of one of the two mounting platforms (602) located on the same side is fixedly connected to a stopper (609), and the stopper (609) is located on a side of the mounting platform (602) away from the silo box body (1).

4. The silo gate of a 3D printing device according to claim 1, characterized in that: The disk (608) on the same side as the stopper (609) is fixedly connected to a short shaft (611) on the side away from the silo box body (1); the mounting platform (602) on the same side is provided with an arc groove (610) on the outside; the inner wall of the arc groove (610) is slidably connected to the outside of the short shaft (611); and the outsides of the two short shafts (611) are movably connected to a connecting rod (612); the isolation frame (5) is provided with openings on both sides close to the fixed seat (601); the inner walls of the openings are respectively slidably connected to the outsides of the two connecting rods (612); and the silo box body (1) is fixedly connected to two symmetrical cylinders (613) on the side close to the isolation frame (5); and the inner walls of the cylinders (613) on the side close to the silo box body (1) are movably connected to a central axis (614).

5. The silo gate of a 3D printing device according to claim 4, characterized in that: The outside of the central axis (614) is fixedly connected to a coil spring (616), and one end of the coil spring (616) away from the central axis (614) is fixedly connected to the inner wall of the cylinder (613) on the same side. The outside of the central axis (614) is fixedly connected to a second connecting rod (615), and one end of the second connecting rod (615) away from the central axis (614) is movably connected to one end of the first connecting rod (612) on the same side away from the short axis (611), and the outsides of the two second connecting rods (615) are movably connected to a transmission rod (617).

6. The silo gate of a 3D printing device according to claim 4, characterized in that: Two symmetrical slide rails (618) are fixedly connected to one side of the silo box body (1) close to the isolation frame (5), and sliders (619) are slidably connected inside the slide rails (618). A short rod (620) is fixedly connected to one side of the slider (619) away from the slide rails (618), and the outside of the short rod (620) on the same side is movably connected to one end of the transmission rod (617) away from the second connecting rod (615), and the slide rail (618) and the transmission rod (617) are both located inside the isolation frame (5).

7. The silo gate of a 3D printing device according to claim 6, characterized in that: A rectangular frame (622) is provided inside the isolation frame (5), the rectangular frame (622) is fixedly connected to a side opposite to the silo box body (1), a slot is provided on the rectangular frame (622), a pressing rod (623) is slidably connected in the slot, a sliding block (624) is fixedly connected to the outside of the pressing rod (623), the outside of the sliding block (624) is slidably connected to the inner wall of the rectangular frame (622), a spring (625) is surrounded by the outside of the pressing rod (623), the spring (625) is located below the sliding block (624), and the spring (625) is provided on the outside of the pressing rod (623). One end of the isolating frame (5) is fixedly connected to the bottom inner wall of the rectangular frame (622), and the other end is fixedly connected to the bottom of the sliding block (624), and the sliding block (624) is movably connected to two symmetrical connecting rods (621) on the side away from the silo box body (1), and the ends of the two connecting rods (621) away from the sliding block (624) are both movably connected to the outside of the short rod (620) on the same side, and a notch is provided on the upper side of the isolation frame (5), and the inner wall of the notch is slidably connected to the outside of the pressing rod (623), and the upper side of the pressing rod (623) is fixedly connected to a pressing plate (626).

8. The silo gate of a 3D printing device according to claim 7, characterized in that: The observation and feeding module (7) comprises a circular ring (701), the outside of the circular ring (701) is fixedly connected to the inner wall of the hole on the closed part (3), the upper side of the circular ring (701) is fixedly connected to an annular frame (702), the upper side of the annular frame (702) is provided with a circular notch (703), the bottom inner wall of the circular notch (703) is provided with a circular cutout (704), an observation cover (705) is slidably connected inside the circular cutout (704), a side of the observation cover (705) away from the circular ring (701) is connected to the bottom inner wall of the circular notch (703) by a hinge, and the bottom inner wall of the circular cutout (704) is provided with a concave hole.

9. The silo gate of a 3D printing device according to claim 8, characterized in that: The inner wall of the concave hole is slidably connected to a push block (706), the upper side of the push block (706) is in contact with the bottom of the observation cover (705), the bottom of the push block (706) is fixedly connected to a second spring (707), one end of the second spring (707) away from the push block (706) is fixedly connected to the bottom inner wall of the concave hole, and the bottom inner wall of the circular groove (703) is provided with two symmetrical rectangular openings (708), each of which is slidably connected to a moving block (709), and a third spring (710) is fixedly connected to the side of the moving block (709) opposite to the inner wall of the rectangular opening (708).

10. The silo gate of a 3D printing device according to claim 9, characterized in that: The upper sides of the moving blocks (709) are movably connected to follower sleeves (711), the two follower sleeves (711) are slidably connected to the same thin rod (712), the outside of the thin rod (712) is fixedly connected to a locking piece (713), the outside of the locking piece (713) is snap-fitted to the outside of the observation cover (705), and the locking piece (713) is located between the two follower sleeves (711), and the bottom inner wall of the circular notch (703) is provided with a receiving groove (714), and the inner wall of the receiving groove (714) is slidably connected to the bottom of the locking piece (713).

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