Extrusion structure of multi-material extrusion type 3D printer
By setting up multiple sets of feed ports and cutters in the extrusion structure of the 3D printer, combining the servo motor and transmission mechanism, the problem that existing 3D printers can only extrude one material, and extrusion of multiple materials is achieved and cut-off, improving the practicality and flexibility of the equipment.
Patent Information
- Application Number
- CN202421115323.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-21
- Publication Date
- 2024-12-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing 3D printers can only extrude one material, which leads to limited use and cannot meet the printing needs of multiple materials.
An extrusion structure of a multi-material extrusion 3D printer is designed. By setting four sets of feed ports and cutting knives on the side of the bearing barrel, extrusion and cutting of various materials are achieved, using servo motors, threaded rods, and lifting. The extrusion mechanism composed of components such as plates, limiting columns and pressure plates is combined with electric push rods, sliding columns, swing plates and transmission columns to achieve material cutting and cutting.
The extrusion of multiple materials is realized, which improves the practicality and flexibility of printing equipment, and can handle printing tasks of multiple materials at the same time, enhancing printing efficiency and flexibility.
Smart Images
Figure CN222246132U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of 3D printing, and in particular to an extrusion structure of a multi-material extrusion type 3D printer. Background Art
[0002] 3D printers, also known as three-dimensional printers, are a type of rapid prototyping equipment. 3D printers have been widely used in industrial production, providing a lot of convenience for industrial production. Common 3D printers mostly use thermoplastic materials such as PLA and ABS for printing.
[0003] After searching, the existing patent (Announcement No.: CN 207224200 U) discloses a 3D printer extrusion device, in particular, a 3D printer extrusion device for printing plastic materials, which belongs to the field of 3D printing technology. The utility model discloses a 3D printer extrusion device for printing plastic materials, including a mud delivery tube and a mud pressing box for storing plastic materials, the top of the mud pressing box is fixedly provided with a support plate, a mud pressing plate is installed in the mud pressing box, and a mud outlet is installed at the bottom of the mud pressing box. The mud delivery tube passes through the support plate and the mud pressing plate and is inserted into the mud pressing box. A telescopic rod for driving the mud pressing plate to reciprocate along the inner wall of the mud pressing box and the outer wall of the mud delivery tube is connected between the support plate and the mud pressing plate, and a valve is also provided on the mud delivery tube. The 3D printer extrusion device for printing plastic materials using the utility model has a simple structure, strong practicality, easy implementation, convenient operation, can improve printing efficiency, and can meet the 3D printing requirements of plastic materials such as clay.
[0004] However, in the above solution, the printing device has only one feed port when in use, so it can only carry one material and can only extrude workpieces of one material, which results in the device being relatively limited in use.
[0005] In view of this, the utility model proposes an extrusion structure of a multi-material extrusion type 3D printer. Utility Model Content
[0006] The utility model provides an extrusion structure of a multi-material extrusion type 3D printer, which solves the problems of 3D printing in related technologies.
[0007] The technical solution of the utility model is as follows: an extrusion structure of a multi-material extrusion type 3D printer, comprising a mounting plate, a carrying barrel passing through the top of the mounting plate, an extrusion mechanism being arranged on the top of the carrying barrel, a feed port being fixedly connected to the side of the carrying barrel, a connecting plate being fixedly connected to the surface of the carrying barrel, a screw passing through the top of the connecting plate, a discharge port being fixedly connected to the bottom of the carrying barrel, an electric push rod being fixedly connected to the top of the mounting plate behind the carrying barrel, a sliding column being fixedly connected to the output end of the electric push rod, a swing plate being rotatably connected to the surface of the sliding column, a transmission column passing through the top of the swing plate, and a cutter being fixedly connected to the bottom of the transmission column.
[0008] Preferably, the extrusion mechanism includes a support plate, a servo motor, a threaded rod, a lifting plate, a limiting column and a pressing plate.
[0009] Preferably, four groups of feed ports are provided, and six groups of mounting holes are opened on the sides of the four groups of feed ports, and the mounting holes of the feed ports are arranged in the middle of the span.
[0010] Preferably, the connecting plates are provided in two groups, and the screws are provided in multiple groups.
[0011] Preferably, two groups of the swing plates are provided, and both groups of the swing plates are inclined.
[0012] Preferably, two groups of transmission columns are provided, the two groups of transmission columns are rotationally connected to the two groups of swing plates respectively, and the two groups of transmission columns are slidingly connected to the mounting plate.
[0013] Preferably, the cutters are provided in two groups, and the two groups of cutters are respectively connected to form a movable structure through two groups of transmission columns.
[0014] Preferably, the top of the supporting barrel is fixedly connected to a support plate, the top of the support plate is connected to a servo motor via screws, the output end of the servo motor is fixedly connected to a threaded rod, the surface of the threaded rod is threadedly connected to a lifting plate, the side of the lifting plate is fixedly connected to a limiting column, and the bottom of the lifting plate is fixedly connected to a pressure plate.
[0015] Preferably, two groups of the limiting columns are provided, and sliding grooves matching the limiting columns are provided on both sides of the support plate.
[0016] Preferably, the pressing plate is embedded in the interior of the carrying barrel, and the pressing plate is slidably connected to the carrying barrel.
[0017] The working principle and beneficial effects of the utility model are:
[0018] 1. In the utility model, by setting the feed port, the staff can connect with the feed equipment through the mounting hole on the side of the feed port. Because there are four groups of feed ports, up to four different materials can be placed, thereby achieving the purpose of multi-material extrusion and improving the practicality of the extrusion equipment;
[0019] 2. In the utility model, by setting a cutter, when the material is extruded, the electric push rod can be controlled, and under the joint movement of the sliding column, the swing plate and the transmission column, the two sets of cutters are driven to cut the extruded material, thereby achieving the purpose of cutting. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0022] Figure 2 This is a schematic diagram of the mounting hole structure of the utility model;
[0023] Figure 3 This is a schematic diagram of the cutter structure of the utility model;
[0024] Figure 4 This is a schematic diagram of the pressing plate structure of the utility model;
[0025] Figure 5 This is a schematic diagram of the threaded rod structure of the utility model.
[0026] In the figure: 1. Mounting plate; 2. Carrying barrel; 3. Extrusion mechanism; 31. Support plate; 32. Servo motor; 33. Threaded rod; 34. Lifting plate; 35. Limiting column; 36. Pressing plate; 4. Feed inlet; 5. Connecting plate; 6. Screw; 7. Discharge outlet; 8. Electric push rod; 9. Sliding column; 10. Swinging plate; 11. Transmission column; 12. Cutter. DETAILED DESCRIPTION
[0027] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0028] Example 1
[0029] A preferred embodiment of the extrusion structure of a multi-material extrusion type 3D printer provided by the utility model is as follows: Figures 1 to 5As shown: an extrusion structure of a multi-material extrusion type 3D printer, including a mounting plate 1, a carrying barrel 2 is penetrated on the top of the mounting plate 1, an extrusion mechanism 3 is arranged on the top of the carrying barrel 2, a feed port 4 is fixedly connected to the side of the carrying barrel 2, a connecting plate 5 is fixedly connected to the surface of the carrying barrel 2, a screw 6 is penetrated on the top of the connecting plate 5, a discharge port 7 is fixedly connected to the bottom of the carrying barrel 2, an electric push rod 8 is fixedly connected to the top of the mounting plate 1 behind the carrying barrel 2, a sliding column 9 is fixedly connected to the output end of the electric push rod 8, a swing plate 10 is rotatably connected to the surface of the sliding column 9, a transmission column 11 is penetrated on the top of the swing plate 10, and a cutter 12 is fixedly connected to the bottom of the transmission column 11.
[0030] In this embodiment, four groups of feed ports 4 are provided, and six groups of mounting holes are opened on the sides of the four groups of feed ports 4. The mounting holes of the feed ports 4 are set in the middle of the span. Because there are four groups of feed ports 4, the staff can transport up to four materials into the supporting barrel 2 according to needs, thereby achieving the purpose of multi-material extrusion and improving the practicability of the extrusion equipment. Because the mounting holes on the sides of the feed ports 4 are set in the middle of the span, it can prevent material leakage from causing rust on the fixed parts.
[0031] In this embodiment, two groups of connecting plates 5 are provided, and multiple groups of screws 6 are provided. The staff can pass the supporting barrel 2 through the top of the mounting plate 1, and then install the supporting barrel 2 on the top of the mounting plate 1 through the screws 6.
[0032] In this embodiment, two groups of swing plates 10 are provided, and both groups of swing plates 10 are inclined. Since the two groups of swing plates 10 are rotationally connected to the sliding column 9, when the sliding column 9 slides backward, a pulling force is applied to the two groups of swing plates 10, causing the two groups of swing plates 10 to swing relative to each other and move closer to each other.
[0033] In this embodiment, two groups of transmission columns 11 are provided, and the two groups of transmission columns 11 are rotationally connected to the two groups of swing plates 10 respectively, and the two groups of transmission columns 11 are slidingly connected to the mounting plate 1. Because the two groups of transmission columns 11 are rotationally connected to the two groups of swing plates 10 respectively, when the two groups of swing plates 10 swing, the two groups of transmission columns 11 will be driven to slide relative to each other and move closer to each other.
[0034] In this embodiment, two groups of cutters 12 are provided, and the two groups of cutters 12 form a movable structure through two groups of transmission columns 11 respectively. Since the two groups of cutters 12 are fixedly connected to the two groups of transmission columns 11 respectively, when the two groups of transmission columns 11 slide, the two groups of cutters 12 will be driven to move relative to each other and approach each other. At this time, the two groups of cutters 12 will cut the extruded material, thereby achieving the purpose of cutting.
[0035] Example 2
[0036] On the basis of Example 1, a preferred embodiment of the extrusion structure of a multi-material extrusion type 3D printer provided by the present invention is as follows: Figures 1 to 5 As shown: the extrusion mechanism 3 includes a support plate 31, a servo motor 32, a threaded rod 33, a lifting plate 34, a limiting column 35 and a pressing plate 36. The top of the supporting barrel 2 is fixedly connected to the support plate 31, the top of the support plate 31 is connected to the servo motor 32 through a screw 6, the output end of the servo motor 32 is fixedly connected to the threaded rod 33, the surface of the threaded rod 33 is threadedly connected to the lifting plate 34, the side of the lifting plate 34 is fixedly connected to the limiting column 35, and the bottom of the lifting plate 34 is fixedly connected to the pressing plate 36.
[0037] In this embodiment, two groups of limit columns 35 are provided, and sliding grooves matching the limit columns 35 are opened on both sides of the support plate 31. Because the lifting plate 34 is engaged with the threaded rod 33, when the threaded rod 33 rotates clockwise, it will drive the lifting plate 34 to descend. At this time, the two groups of limit columns 35 fixedly connected to the lifting plate 34 will slide downward in the vertical grooves on both sides of the support plate 31, and play a certain limiting role on the lifting plate 34, so that the lifting plate 34 descends vertically.
[0038] In this embodiment, the pressure plate 36 is embedded in the interior of the carrying barrel 2, and the pressure plate 36 and the carrying barrel 2 are slidably connected. Because the pressure plate 36 is fixedly connected to the lifting plate 34, when the lifting plate 34 descends, it will drive the pressure plate 36 to slide downward inside the carrying barrel 2 and squeeze the material inside the carrying barrel 2, so that the material is squeezed out from the discharge port 7.
[0039] The working principle and use process of the utility model are as follows: first, the load-bearing barrel 2 passes through the top of the mounting plate 1, and then the load-bearing barrel 2 is mounted on the top of the mounting plate 1 by means of screws 6, and then the staff can connect the feeding device with the feeding port 4. Since the feeding port 4 is provided with four groups, the staff can deliver up to four materials into the load-bearing barrel 2 according to the needs, thereby achieving the purpose of multi-material extrusion and improving the practicality of the extrusion device;
[0040] Subsequently, when the inside of the carrying barrel 2 is filled with material, the servo motor 32 can be started to drive the threaded rod 33 to rotate clockwise. Because the lifting plate 34 is meshed with the threaded rod 33, when the threaded rod 33 rotates clockwise, it will drive the lifting plate 34 to descend. At this time, the two sets of limiting columns 35 fixedly connected to the lifting plate 34 will slide downward in the vertical grooves on both sides of the support plate 31, and play a certain limiting role on the lifting plate 34, so that the lifting plate 34 descends vertically. Because the pressing plate 36 is fixedly connected to the lifting plate 34, when the lifting plate 34 descends, it will drive the pressing plate 36 to slide downward inside the carrying barrel 2 and squeeze the material inside the carrying barrel 2, so that the material is squeezed out from the discharge port 7;
[0041] When the extrusion is completed, the electric push rod 8 can be controlled to pull the sliding column 9 to slide backward. Since the two groups of swing plates 10 are rotationally connected to the sliding column 9, when the sliding column 9 slides backward, a pulling force will be applied to the two groups of swing plates 10, so that the two groups of swing plates 10 swing relative to each other and move closer to each other. Because the two groups of transmission columns 11 are rotationally connected to the two groups of swing plates 10 respectively, when the two groups of swing plates 10 swing, the two groups of transmission columns 11 will be driven to slide relative to each other and move closer to each other. Since the two groups of cutters 12 are fixedly connected to the two groups of transmission columns 11 respectively, when the two groups of transmission columns 11 slide, the two groups of cutters 12 will be driven to move relative to each other and move closer to each other. At this time, the two groups of cutters 12 will cut the extruded material, thereby achieving the purpose of cutting.
[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An extrusion structure of a multi-material extrusion type 3D printer, comprising a mounting plate (1), characterized in that: The top of the mounting plate (1) is penetrated by a supporting barrel (2), the top of the supporting barrel (2) is provided with an extrusion mechanism (3), the side of the supporting barrel (2) is fixedly connected with a feed port (4), the surface of the supporting barrel (2) is fixedly connected with a connecting plate (5), the top of the connecting plate (5) is penetrated by a screw (6), the bottom of the supporting barrel (2) is fixedly connected with a discharge port (7), the top of the mounting plate (1) is located behind the supporting barrel (2) and is fixedly connected with an electric push rod (8), the output end of the electric push rod (8) is fixedly connected with a sliding column (9), the surface of the sliding column (9) is rotatably connected with a swing plate (10), the top of the swing plate (10) is penetrated by a transmission column (11), and the bottom of the transmission column (11) is fixedly connected with a cutter (12).
2. The extrusion structure of a multi-material extrusion type 3D printer according to claim 1, characterized in that: The extrusion mechanism (3) comprises a support plate (31), a servo motor (32), a threaded rod (33), a lifting plate (34), a limiting column (35) and a pressing plate (36).
3. The extrusion structure of a multi-material extrusion type 3D printer according to claim 1, characterized in that: The feed ports (4) are provided with four groups, and the sides of the four groups of feed ports (4) are each provided with six groups of mounting holes, and the mounting holes of the feed ports (4) are arranged in the middle of the span.
4. The extrusion structure of a multi-material extrusion type 3D printer according to claim 1, characterized in that: The connection plates (5) are provided in two groups, and the screws (6) are provided in multiple groups.
5. The extrusion structure of a multi-material extrusion type 3D printer according to claim 1, characterized in that: Two groups of the swing plates (10) are provided, and both groups of the swing plates (10) are arranged in an inclined manner.
6. The extrusion structure of a multi-material extrusion type 3D printer according to claim 1, characterized in that: The transmission columns (11) are provided in two groups, the two groups of transmission columns (11) are rotationally connected to the two groups of swing plates (10) respectively, and the two groups of transmission columns (11) are slidingly connected to the mounting plate (1).
7. The extrusion structure of a multi-material extrusion type 3D printer according to claim 1, characterized in that: The cutters (12) are provided in two groups, and the two groups of cutters (12) respectively form a moving structure through two groups of transmission columns (11).
8. The extrusion structure of a multi-material extrusion type 3D printer according to claim 2, characterized in that: The top of the carrying barrel (2) is fixedly connected to a support plate (31), the top of the support plate (31) is connected to a servo motor (32) via a screw (6), the output end of the servo motor (32) is fixedly connected to a threaded rod (33), the surface of the threaded rod (33) is threadedly connected to a lifting plate (34), the side of the lifting plate (34) is fixedly connected to a limiting column (35), and the bottom of the lifting plate (34) is fixedly connected to a pressing plate (36).
9. The extrusion structure of a multi-material extrusion type 3D printer according to claim 8, characterized in that: Two groups of the limiting columns (35) are provided, and sliding grooves matching the limiting columns (35) are provided on both sides of the support plate (31).
10. The extrusion structure of a multi-material extrusion type 3D printer according to claim 8, characterized in that: The pressing plate (36) is embedded in the interior of the carrying barrel (2), and the pressing plate (36) and the carrying barrel (2) are slidably connected.