FDM3D printer feeder

Abstract

The utility model discloses an FDM3D printer feeder, and relates to the technical field of 3D printers, the FDM3D printer feeder comprises a shell, the upper surface of the shell is provided with a shell cover, the front and rear parts of the left side of the shell and the shell cover are respectively provided with a loading and unloading assembly, the right side of the shell is provided with a cleaning assembly, and the middle part of the right side of the shell cover is provided with a discharge port which is communicated with the inside and the outside. The fixing block, the elastic plate, the groove, the T-shaped positioning block, the U-shaped block, the inclined plane, the sliding groove, the T-shaped groove and the T-shaped block are matched with one another, the groove is separated from the U-shaped block by pressing the inclined plane, the elastic plate is in a deformed state at the moment, and then the elastic plate is moved downwards so that the elastic plate can be separated from the U-shaped block conveniently. And then the shell cover is moved to drive the T-shaped block to slide outwards in the T-shaped groove, so that the operation is completed, the problem that the current structure is of an integral design and is inconvenient to disassemble is solved, the operation is simple and convenient, and the effect of quick disassembly and maintenance is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printers, in particular to a feeder for an FDM 3D printer. Background Art

[0002] FDM is the abbreviation of "Fused Deposition Modeling", that is, fused deposition modeling method, which is a method of heating and melting wire and then stacking it into a shape. An FDM 3D printer is a 3D printer that uses FDM technology for printing. When an FDM 3D printer works, the wire is sent into the print head through a feeder, heated and melted by the print head, and then extruded and stacked layer by layer on the printing platform to form the material.

[0003] According to the patent publication number CN209079220U, a feeder for an FDM 3D printer is disclosed. The feeder for the FDM 3D printer includes a housing provided with a feed inlet, a discharge outlet, and a wire channel located between the feed inlet and the discharge outlet. A detection switch is arranged on the side of the wire channel in the housing, and the wire entering the wire channel can trigger the detection switch. The feeder for the FDM 3D printer of the utility model detects the presence or absence of the wire by setting a detection switch that can be triggered by the wire itself, making the structure of the feeder for the FDM 3D printer simple, capable of real-time detection, and avoiding interference from external factors, making the detection result more accurate. The following problems exist in the prior art:

[0004] In the above-mentioned publication number CN209079220U, due to the current structure being an integral design, it is not convenient to disassemble, resulting in the problem of difficult disassembly when maintenance is required later; at the same time, due to the feature of not being provided with a cleaning structure in the above-mentioned publication number CN209079220U, there may be a phenomenon that dirt or dust adheres to the surface of the wire during use, thus affecting the use. Summary of the Utility Model

[0005] The utility model provides a feeder for an FDM 3D printer to solve the problems raised in the above background art.

[0006] To solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A feeder for an FDM 3D printer includes a housing, a housing cover is arranged on the upper surface of the housing, loading and unloading components are arranged on the front and rear sides of the left side of the housing and the housing cover, a cleaning component is arranged on the right side of the housing, and a discharge outlet communicating inside and outside is opened in the middle of the right side of the housing cover.

[0008] A feed inlet communicating with the inside and outside is provided in the middle of the right side of the housing. T-shaped blocks are fixedly connected to the front and rear of the lower surface of the housing cover. T-shaped grooves are provided in the front and rear of the upper surface of the housing. The left inner wall of the T-shaped groove communicates with the inside and outside. The outer surface of the T-shaped block is slidably connected to the inside of the T-shaped groove. The T-shaped groove and the T-shaped block have the same length. The lower surface of the housing cover is lapped with the upper surface of the housing. A wire channel is provided in the middle of the lower surface of the inner wall of the housing. Two semi-circular mounting grooves are mirror-image opened on the front and rear sides of the right side of the lower surface of the inner wall of the housing near the wire channel. The lower surfaces of the inner walls of the two semi-circular mounting grooves are movably connected to a feed tray. A square groove is provided on the left rear side of the lower surface of the inner wall of the housing near the wire channel. A micro motor is fixedly connected to the right rear side of the lower surface of the housing. The output shaft of the micro motor penetrates the inner wall of the housing and is movably connected to each other. The upper end of the output shaft of the micro motor is fixedly connected to the middle of the lower surface of the rear feed tray. The outer surface of the feed tray is lapped with the inside of the semi-circular mounting groove in the housing. A detection switch is fixedly connected to the lower surface of the inner wall of the square groove in the housing.

[0009] A further improvement of the technical solution of the present utility model lies in that: the loading and unloading assembly includes a fixed block and an elastic plate. The right side of the fixed block is fixedly connected to the left side of the housing. A T-shaped positioning block is fixedly connected to the lower left side of the fixed block. The elastic plate is in an L shape. A chute communicating with the left and right is provided in the middle of the left side in the vertical direction of the elastic plate. The inside of the chute is slidably connected to the outer surface of the T-shaped positioning block in the horizontal direction of the left and right.

[0010] A further improvement of the technical solution of the present utility model lies in that: the left side of the fixed block is lapped with the right side in the vertical direction of the elastic plate. A U-shaped block is lapped with the outer surface above the vertical direction of the elastic plate. The right side of the U-shaped block is fixedly connected to the left side of the housing cover.

[0011] A further improvement of the technical solution of the present utility model lies in that: an inclined surface is provided above the left side in the vertical direction of the elastic plate. A groove is provided on the side near the inclined surface above the left side in the vertical direction of the elastic plate. The front and rear inner walls of the groove communicate with the inside and outside. The inside of the groove is lapped with the outer surface in the horizontal direction of the front and rear of the U-shaped block.

[0012] A further improvement of the technical solution of the present utility model lies in that: the cleaning assembly includes two mounting blocks. The opposite surfaces of the two mounting blocks are lapped. The left side of the lower mounting block is fixedly connected to the right side of the housing. The left side of the upper mounting block is lapped with the right side of the housing. Arc-shaped placement grooves are provided on the opposite surfaces of the two mounting blocks. The left and right inner walls of the arc-shaped placement groove communicate with the inside and outside. Arc-shaped card slots are provided on the left and right sides inside the arc-shaped placement groove. A semi-circular scraping plate is lapped on the inner wall of the arc-shaped card slot. An arc-shaped opening is provided in the middle of the upper surface of the semi-circular scraping plate. The left and right inner walls of the arc-shaped opening communicate with the inside and outside.

[0013] A further improvement of the technical solution of the present utility model lies in that: the arc-shaped placement grooves, arc-shaped card slots, semi-circular scraping plates, and arc-shaped openings in the upper and lower mounting blocks have the same structure and are mirror-image arranged.

[0014] A further improvement of the technical solution of the present utility model lies in that: slots communicating up and down are provided at the front and rear of the upper surface of the lower mounting block, and strip-shaped openings communicating up and down are provided below the inner wall of the arc-shaped placement groove of the lower mounting block. Rubber insertion plates are fixedly connected to the front and rear of the lower surface of the upper mounting block.

[0015] A further improvement of the technical solution of the present utility model lies in that: the length of the rubber insertion plate is greater than the length of the slot, a trapezoidal block that contracts inward is fixedly connected to the lower surface of the rubber insertion plate, and the outer surface of the rubber insertion plate is lapped and pressed tightly inside the slot.

[0016] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model compared with the prior art is:

[0017] The present utility model provides a feeding device for an FDM 3D printer, which adopts the mutual cooperation of a fixed block, an elastic plate, a groove, a T-shaped positioning block, a U-shaped block, an inclined surface, a sliding groove, a T-shaped groove, and a T-shaped block. By pressing the inclined surface, the groove is separated from the U-shaped block. At this time, the elastic plate is in a deformed state. Then, by moving the elastic plate downward, it is convenient to separate the elastic plate from the U-shaped block. Then, by moving the shell cover, the T-shaped block slides outward inside the T-shaped groove to complete the operation, solving the problem that the current structure is an integral design, making it inconvenient to disassemble, making the operation simple and convenient, and achieving the effect of quick disassembly and maintenance.

[0018] The present utility model provides a feeding device for an FDM 3D printer, which adopts the mutual cooperation of a mounting block, a slot, a strip-shaped opening, a rubber insertion plate, a semi-circular scraping plate, and an arc-shaped opening. Through the setting of the semi-circular scraping plates and arc-shaped openings above and below, it is convenient to clean the surface during the movement of the wire. Through the function of the strip-shaped opening, dirt or dust can fall downward conveniently. Through the setting of the rubber insertion plate and the slot, it is convenient to achieve quick assembly, solving the problem that dirt or dust may adhere to the surface of the current wire during use, and achieving the effect of quickly cleaning the dirt or dust on the surface of the wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the present utility model;

[0020] Figure 2 is a schematic exploded structural diagram of the housing and the shell cover of the present utility model;

[0021] Figure 3 is a schematic structural diagram of the loading and unloading assembly of the present utility model;

[0022] Figure 4 Schematic diagram of the groove structure in the spring plate of the present utility model;

[0023] Figure 5 Exploded structure diagram of the upper and lower mounting blocks of the present utility model.

[0024] In the figure: 1. Housing; 11. Wire channel; 12. Feeding tray; 13. Detection switch; 14. T-shaped groove; 2. Cover; 21. T-shaped block; 3. Loading and unloading assembly; 31. Fixed block; 32. Elastic plate; 321. Groove; 33. T-shaped positioning block; 34. U-shaped block; 35. Inclined surface; 36. Slide groove; 4. Cleaning assembly; 41. Mounting block; 42. Slot; 43. Strip-shaped opening; 44. Rubber plug board; 45. Semi-circular scraping plate; 46. Arc-shaped opening; 5. Discharge port; 6. Feed port. Detailed implementation manners

[0025] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0026] As Figure 1 shown, the present utility model provides a feeding device for an FDM 3D printer, including a housing 1, a cover 2 is arranged on the upper surface of the housing 1, loading and unloading assemblies 3 are arranged on the front and rear sides of the left side of the housing 1 and the cover 2, a cleaning assembly 4 is arranged on the right side of the housing 1, and a discharge port 5 communicating inside and outside is opened in the middle of the right side of the cover 2;

[0027] The arrangement of the loading and unloading assembly 3 facilitates the installation of the cover 2 and the housing 1, and the arrangement of the cleaning assembly 4 facilitates the cleaning of dirt or dust on the surface of the wire during use.

[0028] As Figure 2As shown in the figure, T-shaped blocks 21 are fixedly connected to the front and rear of the lower surface of the shell cover 2. T-shaped grooves 14 are provided in the front and rear of the upper surface of the shell 1. The left inner wall of the T-shaped groove 14 communicates with the outside. The outer surface of the T-shaped block 21 is slidably connected to the inside of the T-shaped groove 14. The lengths of the T-shaped groove 14 and the T-shaped block 21 are the same. The lower surface of the shell cover 2 overlaps with the upper surface of the shell 1. A wire channel 11 is provided in the middle of the lower surface of the inner wall of the shell 1. Two semi-circular mounting grooves are mirror-symmetrically provided on the right front and rear sides of the lower surface of the inner wall of the shell 1 near the wire channel 11. The lower surfaces of the inner walls of the two semi-circular mounting grooves are movably connected to the feeding disks 12. A square groove is provided on the left rear side of the lower surface of the inner wall of the shell 1 near the wire channel 11. A micro motor is fixedly connected to the right rear of the lower surface of the shell 1. The output shaft of the micro motor penetrates through the inner wall of the shell 1 and is movably connected to each other. The upper end of the output shaft of the micro motor is fixedly connected to the middle of the lower surface of the rear feeding disk 12. The outer surface of the feeding disk 12 overlaps with the inside of the semi-circular mounting groove in the shell 1. A detection switch 13 is fixedly connected to the lower surface of the inner wall of the square groove in the shell 1;

[0029] Through the arrangement of the T-shaped block 21 and the T-shaped groove 14, it is convenient to move the shell cover 2, so as to achieve the installation and disassembly of the shell cover 2. When in use, the wire is passed through the cleaning component 4 and enters the inside of the shell 1 through the feeding port 6. At the same time, the micro motor is started to drive the rear feeding disk 12 to rotate, so that the wire moves inside the wire channel 11. At this time, the outer surfaces of the front and rear feeding disks 12 are in contact with and fit the surface of the wire. During the movement of the wire, the front feeding disk 12 is driven to rotate, and the detection switch 13 is used for detection, so as to realize the detection of the presence or absence of the wire, so that the wire is taken out through the discharge port 5 and the operation is completed. Among them, the micro motor is electrically connected through wires and a power source. The working principle of the detection switch 13 is not described in detail for the existing technical features.

[0030] As Figure 3 - Figure 4 As shown in the figure, the loading and unloading component 3 includes a fixed block 31 and an elastic plate 32. The right side of the fixed block 31 is fixedly connected to the left side of the shell 1. A T-shaped positioning block 33 is fixedly connected to the lower left side of the fixed block 31. The elastic plate 32 is L-shaped. A left-right communicating chute 36 is provided in the middle of the left side in the vertical direction of the elastic plate 32. The inside of the chute 36 is slidably connected to the outer surface of the T-shaped positioning block 33 in the left-right horizontal direction. The left side of the fixed block 31 overlaps with the right side in the vertical direction of the elastic plate 32. A U-shaped block 34 overlaps with the upper outer surface in the vertical direction of the elastic plate 32. The right side of the U-shaped block 34 is fixedly connected to the left side of the shell cover 2. An inclined surface 35 is provided above the left side in the vertical direction of the elastic plate 32. A groove 321 is provided on the left side above the inclined surface 35 in the vertical direction of the elastic plate 32. The front and rear inner walls of the groove 321 communicate with the outside. The inside of the groove 321 overlaps with the outer surface in the front and rear horizontal directions of the U-shaped block 34;

[0031] When disassembly is required, by pressing the inclined surface 35, the elastic plate 32 is in a deformed state in the vertical direction. At this time, the groove 321 is separated from the U-shaped block 34. Then, by moving the elastic plate 32 downward in the horizontal direction, it drives the separation of the elastic plate 32 from the U-shaped block 34 downward. At this time, the outer surface of the T-shaped positioning block 33 slides horizontally left and right inside the chute 36. Then, by moving the shell cover 2, the T-shaped block 21 slides outward inside the T-shaped groove 14 to complete the operation. Conversely, when installation is required, after moving the elastic plate 32 upward to an appropriate position, the inclined surface 35 contacts the U-shaped block 34 and squeezes the elastic plate 32 to cause deformation. When the elastic plate 32 is moved upward again, it returns to the normal state, causing the groove 321 to be stuck on the surface of the U-shaped block 34, thus achieving the installation effect.

[0032] As Figure 5 shown, the cleaning component 4 includes two mounting blocks 41. The opposite surfaces of the two mounting blocks 41 are lapped. The left side of the lower mounting block 41 is fixedly connected to the right side of the housing 1. The left side of the upper mounting block 41 is lapped with the right side of the housing 1. Arc-shaped placement grooves are provided on the opposite surfaces of the two mounting blocks 41. The left and right sides of the inner wall of the arc-shaped placement groove communicate with each other. Arc-shaped card slots are provided on the left and right sides inside the arc-shaped placement groove. A semi-circular scraper 45 is lapped on the inner wall of the arc-shaped card slot. An arc-shaped opening 46 is provided in the middle of the upper surface of the semi-circular scraper 45. The left and right sides of the inner wall of the arc-shaped opening 46 communicate with each other. The arc-shaped placement grooves, arc-shaped card slots, semi-circular scrapers 45, and arc-shaped openings 46 in the upper and lower mounting blocks 41 have the same structure and are mirror-symmetrically arranged. Through slots 42 communicating up and down are provided on the front and rear sides of the upper surface of the lower mounting block 41. A strip-shaped opening 43 communicating up and down is provided on the lower side of the inner wall of the arc-shaped placement groove of the lower mounting block 41. Rubber plug plates 44 are fixedly connected to the front and rear sides of the lower surface of the upper mounting block 41. The length of the rubber plug plates 44 is greater than the length of the through slots 42. A trapezoidal block that contracts inward is fixedly connected to the lower surface of the rubber plug plates 44. The outer surface of the rubber plug plates 44 is lapped and pressed tightly inside the through slots 42;

[0033] By placing the wire in the lower mounting block 41, the wire contacts the arc-shaped opening 46. Then, by pressing the upper mounting block 41, the rubber plug plates 44 enter the inside of the through slots 42 and the rubber plug plates 44 are deformed and contracted, thus facilitating the installation. When the wire moves, the semi-circular scrapers 45 and the arc-shaped opening 46 in the upper and lower parts facilitate the scraping of dirt on the surface of the wire. The strip-shaped opening 43 facilitates the dirt after wire cleaning to fall off and be discharged through the strip-shaped opening 43, thus achieving the effect of dirt cleaning.

[0034] Next, specifically describe the working principle of the feeder of this FDM 3D printer.

[0035] When disassembly is required, press the inclined surface 35 to make the elastic plate 32 in a deformed state in the vertical direction. At this time, the groove 321 is separated from the U-shaped block 34. Then, move the elastic plate 32 horizontally downward to drive the separation of the elastic plate 32 from the U-shaped block 34. Then, move the shell cover 2 to drive the T-shaped block 21 to slide outward inside the T-shaped groove 14 to complete the operation. When the wire moves, the semicircular scraping plate 45 and the arc-shaped opening 46 above and below are provided to facilitate scraping the dirt on the surface of the wire. The bar-shaped opening 43 is provided to facilitate the dirt after the wire is cleaned to fall and be discharged through the bar-shaped opening 43, thus achieving the effect of dirt cleaning.

[0036] The above text generally describes the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, the modifications or improvements made without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A FDM 3D printer feeder, comprising a housing (1), characterized in that: The upper surface of the shell (1) is provided with a shell cover (2); loading and unloading components (3) are provided at the left and front sides of the shell (1) and the shell cover (2); a cleaning component (4) is provided at the right side of the shell (1); and a discharge port (5) communicating with the inside and outside is provided in the middle of the right side of the shell cover (2); A feed port (6) communicating with the inside and outside is provided in the middle of the right side of the shell (1); a T-shaped block (21) is fixedly connected to the front and rear sides of the lower surface of the shell cover (2); a T-shaped slot (14) is provided in the front and rear sides of the upper surface of the shell (1); the left side of the inner wall of the T-shaped slot (14) is communicating with the inside and outside; the outer surface of the T-shaped block (21) is slidably connected to the inside of the T-shaped slot (14); the lengths of the T-shaped slot (14) and the T-shaped block (21) are the same; the lower surface of the shell cover (2) overlaps the upper surface of the shell (1); a wire passage (11) is provided in the middle of the lower surface of the inner wall of the shell (1); the front and rear sides of the right side of the lower surface of the inner wall of the shell (1) are close to the wire passage (11) Two semicircular mounting grooves are mirrored on one side, and the lower surfaces of the inner walls of the two semicircular mounting grooves are movably connected to a feed tray (12). A square groove is provided on the left rear side of the lower surface of the inner wall of the shell (1) close to the wire channel (11). A micro motor is fixedly connected to the right rear side of the lower surface of the shell (1). The output shaft of the micro motor passes through the inner wall of the shell (1) and is movably connected to each other. The upper end of the output shaft of the micro motor is fixedly connected to the middle part of the lower surface of the rear feed tray (12). The outer surface of the feed tray (12) overlaps the inside of the semicircular mounting groove in the shell (1), and the lower surface of the inner wall of the square groove in the shell (1) is fixedly connected to a detection switch (13).

2. The FDM 3D printer feeder according to claim 1, characterized in that: The loading and unloading assembly (3) comprises a fixed block (31) and an elastic plate (32); the right side of the fixed block (31) is fixedly connected to the left side of the housing (1); a T-shaped positioning block (33) is fixedly connected to the lower left side of the fixed block (31); the elastic plate (32) is L-shaped; a sliding groove (36) communicating with the left and right sides is provided in the middle of the left side in the vertical direction of the elastic plate (32); the interior of the sliding groove (36) is slidably connected to the left and right horizontal outer surfaces of the T-shaped positioning block (33).

3. The FDM 3D printer feeder according to claim 2, characterized in that: The left side of the fixed block (31) overlaps the right side of the elastic plate (32) in the vertical direction, a U-shaped block (34) overlaps the upper side of the vertical outer surface of the elastic plate (32), and the right side of the U-shaped block (34) is fixedly connected to the left side of the shell cover (2).

4. The FDM 3D printer feeder according to claim 2, characterized in that: An inclined surface (35) is provided on the upper left side of the elastic plate (32) in the vertical direction, and a groove (321) is provided on the upper left side of the elastic plate (32) in the vertical direction close to the inclined surface (35). The inner wall of the groove (321) is connected to the inside and outside of the front and rear sides, and the interior of the groove (321) overlaps the outer surfaces of the front and rear horizontal directions of the U-shaped block (34).

5. The FDM 3D printer feeder according to claim 1, characterized in that: The cleaning assembly (4) comprises two mounting blocks (41), the two mounting blocks (41) are overlapped with each other at opposite surfaces, the left side of the lower mounting block (41) is fixedly connected to the right side of the shell (1), and the left side of the upper mounting block (41) is overlapped with the right side of the shell (1), the opposite surfaces of the two mounting blocks (41) are provided with arc-shaped placement grooves, the inner walls of the arc-shaped placement grooves are connected to each other on the left and right sides, the inner sides of the arc-shaped placement grooves are provided with arc-shaped clamping grooves, the inner walls of the arc-shaped clamping grooves are fixedly connected with a semicircular scraper (45), the upper surface of the semicircular scraper (45) is provided with an arc-shaped opening (46) in the middle, and the inner walls of the arc-shaped opening (46) are connected to each other on the left and right sides.

6. The FDM 3D printer feeder according to claim 5, characterized in that: The arc-shaped placement groove, arc-shaped clamping groove, semicircular scraper (45), and arc-shaped opening (46) in the upper and lower mounting blocks (41) have the same structure and are arranged in a mirror image.

7. The FDM 3D printer feeder according to claim 5, characterized in that: The upper surface of the lower mounting block (41) is provided with slots (42) communicating with each other up and down at the front and rear sides thereof, the lower inner wall of the arc-shaped placement groove of the lower mounting block (41) is provided with a strip-shaped opening (43) communicating with each other up and down, and the lower surface of the upper mounting block (41) is fixedly connected with rubber plug plates (44) at the front and rear sides thereof.

8. The FDM 3D printer feeder according to claim 7, characterized in that: The length of the rubber plug plate (44) is greater than the length of the slot (42); a trapezoidal block that contracts inwards is fixedly connected to the lower surface of the rubber plug plate (44); and the outer surface of the rubber plug plate (44) overlaps and tightens against the inside of the slot (42).

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