Material adding device for 3D printer

Abstract

The utility model relates to the technical field of 3D (three-dimensional) printers, and discloses a material adding device for a 3D printer, which comprises a support, a motor mounted on the support, a turntable mounted on an output rotating shaft of the motor and at least two abutting plates fixedly connected with a rotating shaft, one end of the rotating shaft is rotatably connected onto the turntable, and the other end of the rotating shaft is rotatably connected onto the rotating shaft. Symmetrical sliding grooves are formed in the abutting plate, a sliding block and a control pipe are connected into each sliding groove in a sliding mode, the control pipe is fixedly connected to the support, a pushing assembly used for pushing the sliding blocks to move in the sliding grooves is arranged on the control pipe, the sliding blocks move in the sliding grooves through the pushing assembly, then the sliding blocks abut against the inner wall of the material roller, and therefore the material roller can be fixed to the inner wall of the material roller. The material roller and the control pipe are coaxially fixed, the material roller can drive the rotating shaft to rotate on the rotating disc through the abutting plate, consumables on the material roller and the rotating shaft can coaxially rotate for discharging, the situation of eccentric discharging of the material roller is avoided, the material roller can conduct uniform discharging, and the printing quality of the printer is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printers, and in particular to a material adding device for a 3D printer. Background Art

[0002] 3D printer, also known as three-dimensional printer (3DP), is a machine with cumulative manufacturing technology, that is, rapid prototyping technology. It is based on a digital model file and uses special wax materials, powdered metal or plastic and other adhesive materials to print layers of adhesive materials to create three-dimensional objects. At this stage, 3D printers are used to manufacture products and construct objects by printing layer by layer.

[0003] A Chinese patent with patent number CN217553153U discloses a material adding device for a 3D printer. It drives the connecting shaft to rotate through a motor, so that the unused material roller rotates to the supply position. After unscrewing the first screw, the used material roller can be removed for replacement. When the user needs to replace the material roller, there is no need to stop the 3D printer, and the material roller can be replaced. This not only reduces the difficulty of replacing the material roller and the printing difficulty of the 3D printer, but also improves the replacement efficiency of the material roller and the printing efficiency of the 3D printer.

[0004] Although the device can replace the supply roller by driving the motor to change the position of the turntable feeding roller, there will be a certain error in the size of the material rollers matching different types of consumables. This will cause the material roller to rotate eccentrically when rotating on the side rod to discharge the material, resulting in uneven discharge of the consumables, which will cause the extruder to be unable to push the consumables with a constant pressure, resulting in unstable extrusion of the consumables and affecting the printing quality. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a material adding device for a 3D printer, which effectively solves the problem that the existing material adding device cannot be applied to different types of consumables, and the material roller will rotate eccentrically when rotating on the side rod to discharge the material, resulting in uneven discharge of the consumable, which will cause the extruder to be unable to push the consumable with a constant pressure, thereby causing unstable extrusion of the consumable and affecting the printing quality.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is: a material adding device for a 3D printer, comprising:

[0007] A support is provided on which a motor is installed, and a rotating disk is installed on the output rotating shaft of the motor.

[0008] At least two abutment plates are fixedly connected to a rotating shaft, and one end of the rotating shaft is rotatably connected to the turntable. Symmetrical sliding grooves are provided on the abutment plates, and a slider is slidably connected in each of the sliding grooves.

[0009] The control tube is fixedly connected to the abutment plate, and a pushing component for pushing the sliding block to move in the sliding groove is arranged on the control tube.

[0010] Furthermore, the pushing assembly includes a screw rod rotatably connected to the control tube, a movable groove opened on the control tube, a movable block threadedly connected to the screw rod, a hinged rod hinged on the movable block, an hinged seat hinged at one end of the hinged rod away from the movable block, and the hinged seat is fixedly connected to the slider.

[0011] Furthermore, one end of the screw rod away from the control tube is fixedly connected with a screw block.

[0012] Furthermore, a support plate is fixedly connected to the slider, and a side surface of the support plate away from the slider is a curved surface.

[0013] Furthermore, a fixing block is threadedly connected to the control tube.

[0014] Furthermore, a support rod is fixedly connected to the support, a support roller is rotatably connected to the support rod, and the support roller is in contact with the turntable.

[0015] Furthermore, the bottom surface of the support is fixedly connected to a base, and a mounting groove is provided on the base.

[0016] The beneficial effects of the above technical solution are:

[0017] The utility model promotes the coordination among a pushing component, a control tube, a supporting plate, a rotating shaft, a slide groove and a slider, and enables the slider to move inside the slide groove through the pushing component, and then to press the slider against the inner wall of the material roller, so that the material roller and the control tube are coaxially fixed, and the material roller can drive the rotating shaft to rotate on the turntable through the supporting plate, and the consumables on the material roller can be rotated coaxially with the rotating shaft to discharge the material, so that the material roller can avoid eccentric discharge, so that the material roller can discharge the material evenly, and the printing quality of the printer is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional Figure 1 ;

[0019] Figure 2 The three-dimensional Figure 2 ;

[0020] Figure 3 It is a cross-sectional view of the utility model.

[0021] Figure numerals: 1. support; 2. motor; 3. turntable; 4. rotating shaft; 5. abutment plate; 6. control tube; 7. fixed block; 8. slide groove; 9. slider; 10. support plate; 11. hinged seat; 12. movable groove; 13. screw rod; 14. screw block; 15. movable block; 16. hinged rod; 17. support rod; 18. support roller; 19. base; 20. mounting groove. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods:

[0023] Reference Figure 1-3 , a material adding device for a 3D printer, comprising a support 1, at least two abutment plates 5 and a control tube 6.

[0024] A motor 2 is installed on the support 1, and a turntable 3 is installed on the output shaft of the motor 2. The turntable 3 is driven to rotate by the output shaft of the motor 2, and the position of the abutment plate 5 on the turntable 3 can be adjusted, thereby switching the positions of different types of consumables.

[0025] A rotating shaft 4 is fixedly connected to the abutment plate 5, and one end of the rotating shaft 4 is rotatably connected to the turntable 3, so that the abutment plate 5 can drive the rotating shaft 4 to rotate on the turntable 3. A symmetrical slide groove 8 is provided on the abutment plate 5, and a slider 9 is slidably connected in each slide groove 8. A support plate 10 is fixedly connected to the slider 9. The side of the support plate 10 away from the slider 9 is an arc surface, which can make the arc surface of the support plate 10 abut against the inner wall of the material roller, thereby supporting and fixing the material roller.

[0026] The control tube 6 is fixedly connected to the abutment plate 5. A pushing component for pushing the slider 9 to move in the slide groove 8 is provided on the control tube 6. A fixing block 7 is threadedly connected to the control tube 6, which can rotate and move the fixing block 7 on the control tube 6, so that the material roller placed on the control tube 6 can be limited and fixed again.

[0027] The pushing assembly includes a screw rod 13 rotatably connected to the control tube 6 and a movable groove 12 opened on the control tube 6. A movable block 15 is threadedly connected to the screw rod 13. A hinged rod 16 is hinged on the movable block 15. An end of the hinged rod 16 away from the movable block 15 is hinged to a hinged seat 11, and the hinged seat 11 is fixedly connected to the slider 9.

[0028] By rotating the screw rod 13, the moving block 15 can be moved on the screw rod 13, and the hinged rod 16 can be moved in the moving groove 12. Under the action of the hinged seat 11, the slider 9 can slide in the slide groove 8. At this time, after the moving block 15 moves, multiple hinged rods 16 can synchronously drive multiple sliders 9 to move, so that the material roller and the control tube 6 are set coaxially, and the hinged seat 11 is placed against the material roller to fix the material roller.

[0029] One end of the screw rod 13 away from the control tube 6 is fixedly connected with a screw block 14 , and the screw rod 13 can be conveniently controlled to rotate by the screw block 14 .

[0030] A support rod 17 is fixedly connected to the support 1, and a support roller 18 is rotatably connected to the support rod 17, and the support roller 18 is in contact with the turntable 3. The support roller 18 on the support rod 17 is used to support the turntable 3 to improve the stability of the turntable 3 in the rotating state.

[0031] The bottom surface of the support 1 is fixedly connected with a base 19 , and a mounting groove 20 is formed on the base 19 . The base 19 is fixed by installing bolts in the mounting groove 20 , and the support 1 is supported by the base 19 .

[0032] Working principle: When installing the consumable material roller, first, put the hollow part of the material roller on the control tube 6, then, rotate the screw 13 through the screw block 14, and move the moving block 15 on the screw 13, and push the slider 9 to slide in the slide groove 8 through the hinge rod 16 and the hinge seat 11, and make the support plate 10 on the slider 9 contact the inner wall of the material roller, so that the material roller and the control tube 6 are coaxially installed, and finally, rotate the fixed block 7 and move the fixed block 7 on the control tube 6, and the fixed block 7 can be pressed against the material roller, so that the material roller is installed and fixed, and the material roller can be driven by the abutment plate 5 to rotate on the turntable 3. The consumables on the material roller can be rotated coaxially with the rotating shaft 4 to avoid eccentric feeding of the material roller, so that the material roller can be fed evenly to ensure the printing quality of the printer.

Claims

1. A material adding device for a 3D printer, characterized in that: include: A support (1), a motor (2) being mounted on the support (1), and a rotating disk (3) being mounted on the output rotating shaft of the motor (2); At least two abutment plates (5), each of which is fixedly connected to a rotating shaft (4), and one end of the rotating shaft (4) is rotatably connected to the turntable (3), and each of which is provided with symmetrical sliding grooves (8), and each of which is slidably connected to a sliding block (9); The control tube (6) is fixedly connected to the abutment plate (5), and a pushing component for pushing the slider (9) to move in the slide groove (8) is provided on the control tube (6).

2. A material adding device for a 3D printer according to claim 1, characterized in that: The pushing assembly comprises a screw rod (13) rotatably connected to the control tube (6), and a moving groove (12) provided on the control tube (6); a moving block (15) is threadedly connected to the screw rod (13); a hinged rod (16) is hinged to the moving block (15); an end of the hinged rod (16) away from the moving block (15) is hinged to a hinged seat (11); and the hinged seat (11) is fixedly connected to the slider (9).

3. A material adding device for a 3D printer according to claim 2, characterized in that: One end of the screw rod (13) away from the control tube (6) is fixedly connected to a screw block (14).

4. The material adding device for a 3D printer according to claim 1, characterized in that: A support plate (10) is fixedly connected to the slider (9), and a side surface of the support plate (10) away from the slider (9) is a curved surface.

5. The material adding device for a 3D printer according to claim 1, characterized in that: A fixing block (7) is threadedly connected to the control tube (6).

6. A material adding device for a 3D printer according to claim 1, characterized in that: A support rod (17) is fixedly connected to the support seat (1), a support roller (18) is rotatably connected to the support rod (17), and the support roller (18) is in contact with the turntable (3).

7. The material adding device for a 3D printer according to claim 1, characterized in that: The bottom surface of the support (1) is fixedly connected to a base (19), and a mounting groove (20) is provided on the base (19).

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