3D printer capable of switching material conveying modes

Abstract

The utility model provides a material conveying mode switching 3D printer which comprises a supporting block, a sliding groove formed in the supporting block and two sets of rotating roller parts arranged in the sliding groove in a sliding mode. Compared with the prior art, a motor can drive one set of rotating roller parts to rotate so as to achieve the material conveying process of the two sets of rotating roller parts to consumables in the opposite direction; the process can be visually displayed, thereby facilitating auxiliary understanding of students; the rotating process of the driving part can be manually operated to drive one group of rotating roller parts to rotate in a friction mode, the opposite consumable conveying process of the two groups of rotating roller parts can also be achieved, the relative acting force can be reversely transmitted to students or operators through the driving part, the experience feeling in the teaching process is enhanced, and the teaching efficiency is improved. In the process, feeding, returning and hovering work of consumables can be flexibly and perfectly achieved, and the teaching quality of 3D printing work is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printers, and in particular to a 3D printer capable of switching feeding modes. Background Art

[0002] In education, 3D printing technology helps improve learning, skill development, and increase student and teacher engagement with the subject matter. In addition, 3D printing inspires greater creativity and collaboration in problem solving, so the application of 3D printing in education has a variety of important uses in primary and secondary schools, universities, libraries, technical colleges, and other educational environments.

[0003] Under normal circumstances, 3D printers feed consumables by driving the drive wheels with a motor, so that the two drive wheels rotate in opposite directions to squeeze the consumables to achieve the conveying process of the consumables. However, this consumable feeding method is relatively simple. Students can only understand the printer's feeding process by observing the process, but cannot participate in the feeding process. It has no practicality and the effect achieved in the teaching process is limited. Utility Model Content

[0004] The purpose of the utility model is to provide a 3D printer with a switchable feeding mode to solve the above problems.

[0005] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides a 3D printer for switching feeding mode, comprising: a support block, a slide groove arranged on the support block, two groups of roller parts slidably arranged in the slide groove, a motor arranged on the support block and connected to one group of the roller parts, and a driving part connected to one group of the roller parts through a support rod;

[0006] The driving part abuts against one group of the roller parts;

[0007] A through hole is provided at the lower end of the support block, and a nozzle is connected to the through hole;

[0008] The consumables can pass through the two sets of rollers and penetrate the nozzle from the through hole, wherein

[0009] The motor is driven or the driving part is manually cranked, wherein one of the roller parts can drive the other roller part to rotate through the consumables, so that the consumables are delivered to the nozzle.

[0010] Further, the roller portion includes a slide bar slidably arranged in the slide groove, a transmission shaft rotatably arranged on the slide bar, and a conveying wheel arranged on the transmission shaft;

[0011] The conveying wheel is provided with an annular groove, and the edge line of the annular groove is arc-shaped;

[0012] The consumables can be inserted into and abut against the annular groove.

[0013] Furthermore, a plurality of concave arc grooves are circumferentially arranged on the annular groove;

[0014] Some of the recessed arc grooves are capable of contacting consumables.

[0015] Further, the driving part includes a rotating wheel rotatably arranged on the support rod, and a convex ring arranged outside the rotating wheel;

[0016] The outer wall of the rotating wheel can abut against the conveying wheel

[0017] The convex ring can be matched, inserted and abutted against the annular groove.

[0018] Furthermore, one end of the rotating wheel is provided with a hexagonal groove for inserting an external hexagonal wrench;

[0019] The side edges of the hexagonal groove are inclined from the groove opening toward the groove bottom.

[0020] Furthermore, an operating rod is rotatably arranged in the slide groove;

[0021] The operating rod is provided with opposing threads;

[0022] The slide rod is provided with threaded holes, and two threaded holes are matched and connected with the opposing threads.

[0023] Furthermore, a stop bar is provided on the slide bar;

[0024] The stop bar can push down against the support block.

[0025] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0026] Compared with the existing technology, the motor can drive one group of roller parts to rotate to realize the process of feeding the consumables by the two groups of roller parts. The process can be displayed intuitively, which is convenient for students to understand. The rotation process of the driving part can be manually operated to drive one group of roller parts to rotate frictionally, and the process of feeding the consumables by the two groups of roller parts can also be realized. The relative force can be reversely transmitted to students or operators through the driving part, thereby enhancing the experience in the teaching process. In the process, the feeding, withdrawing and hovering of consumables can be flexibly and perfectly realized, thereby improving the teaching quality of 3D printing work. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1 A first perspective stereogram of the present invention is shown;

[0029] Figure 2 A second perspective stereogram of the present invention is shown;

[0030] Figure 3 A three-dimensional diagram of the roller part connected to the driving part of the utility model is shown;

[0031] Figure 4 A front view of the conveying wheel of the present utility model is shown.

[0032] In the figure

[0033] 1. Support block; 2. Slide groove; 3. Roller part; 31. Slide rod; 32. Conveying wheel; 33. Ring groove; 34. Concave arc groove; 4. Motor; 5. Support rod; 6. Driving part; 61. Rotating wheel; 62. Convex ring; 63. Hexagonal groove; 7. Nozzle; 8. Operating rod; 9. Opposite threads; 10. Threaded hole; 11. Baffle bar. DETAILED DESCRIPTION

[0034] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0035] like Figure 1-4 As shown, a 3D printer for switching feeding modes comprises: a support block 1, a chute 2 arranged on the support block 1, two groups of roller parts 3 slidably arranged in the chute 2, a motor 4 arranged on the support block 1 and connected to one group of the roller parts 3, and a driving part 6 connected to one group of the roller parts 3 through a support rod 5;

[0036] The driving part 6 abuts against one group of the roller parts 3;

[0037] The support block 1 is provided with a through hole at the lower end, and a nozzle 7 is connected to the through hole.

[0038] The consumables can pass through the two sets of rollers 3 and penetrate the nozzle 7 from the through hole, wherein

[0039] Drive the motor 4 or manually crank the drive unit 6, where one of the roller units 3 can drive the other roller unit 3 to rotate through the consumables, so that the consumables are transported to the nozzle 7. Specifically, compared with the prior art, the motor 4 can drive one group of roller units 3 to rotate to realize the feeding process of the two groups of roller units 3 to the consumables, and the process can be displayed intuitively to facilitate students' understanding; and the rotation process of the drive unit 6 can be manually operated to drive one group of roller units 3 to rotate frictionally, and the feeding process of the two groups of roller units 3 to the consumables can also be realized. The relative force can be reversely transmitted to the students or operators through the drive unit 6, thereby enhancing the experience in the teaching process. In the process, the feeding, withdrawing and hovering of the consumables can be flexibly and perfectly realized, thereby improving the teaching quality of 3D printing.

[0040] Optionally, the roller portion 3 includes a slide bar 31 slidably disposed in the slide groove 2, a transmission shaft rotatably disposed on the slide bar 31, and a conveying wheel 32 disposed on the transmission shaft;

[0041] The conveying wheel 32 is provided with an annular groove 33, and the edge line of the annular groove 33 is arc-shaped;

[0042] The consumables can be inserted into and abut against the annular groove 33. Specifically, the two sides of the consumables can finally abut against the two annular grooves 33 respectively. The annular grooves 33 are bent from the groove mouth to the groove bottom in the same direction as the arching direction of the consumable edge line to meet the extrusion requirements of the consumables, so that the consumables cannot shake during the extrusion process and separate from the conveying wheel 32, and the force applied to the consumables can be smooth and uniform during the process.

[0043] Optionally, a plurality of concave arc grooves 34 are circumferentially arranged on the annular groove 33;

[0044] Some of the recessed arc grooves 34 can contact the consumables. Specifically, some of the recessed arc grooves 34 can increase the contact angle and contact area with the consumables, so that the consumables are not easy to slide during the transportation process, and the force effect of the consumables is stronger.

[0045] Optionally, the driving part 6 includes a rotating wheel 61 rotatably arranged on the support rod 5, and a convex ring 62 arranged outside the rotating wheel 61;

[0046] The outer wall of the rotating wheel 61 can abut against the conveying wheel 32

[0047] The convex ring 62 can match, penetrate and side-butt the annular groove 33. Specifically, the convex ring 62 and the rotating wheel 61 can respectively transmit the force to the annular groove 33 and the conveying wheel 32, so that the conveying wheel 32 can receive the force effect in multiple aspects, making the force transmission process more balanced and reducing the force loss in the process of manually conveying consumables.

[0048] Optionally, one end of the rotating wheel 61 is provided with a hexagonal groove 63 for inserting an external hexagonal wrench;

[0049] The side of the hexagonal groove 63 is inclined from the groove position toward the groove bottom position. Specifically, 3D printers are generally equipped with tools such as hexagonal wrenches. When the rotating wheel 61 is manually operated to rotate, the hexagonal bolt can be directly inserted into the hexagonal groove 63 to facilitate the rotation of the rotating wheel 61. The shape setting of the hexagonal groove 63 can adapt to the insertion of hexagonal wrenches of multiple sizes.

[0050] Optionally, an operating rod 8 is rotatably provided in the slide slot 2;

[0051] The operating rod 8 is provided with opposing threads 9;

[0052] The slide bar 31 is provided with threaded holes 10, and the two threaded holes 10 are matched and connected with the opposing threads 9. Specifically, the most common consumable diameters on the market are 1.75 mm and 2.85 mm. Each consumable must be matched with a different printer. The operating rod 8 can be rotated to allow the opposing threads 9 to act on the two threaded holes 10 respectively, so that the two slide bars 31 drive the conveying wheels 32 to move and contact consumables of different diameters under the limiting force of the slide groove, so as to expand the use range of consumables of different diameters and make the loading and unloading process of consumables more flexible.

[0053] Optionally, a stop bar 11 is provided on the slide bar 31;

[0054] The stop bar 11 can push down against the support block 1. Specifically, the width of the stop bar 11 is greater than the width of the slide groove 2. The stop bar 11 can ensure that the slide bar 31 will not fall from the slide groove 2, thereby increasing the protection of the slide bar 31 during its movement.

[0055] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A 3D printer with a switching feeding mode, characterized in that: include: A support block (1), a slide groove (2) arranged on the support block (1), two groups of roller parts (3) slidably arranged in the slide groove (2), a motor (4) arranged on the support block (1) and connected to one group of the roller parts (3), and a driving part (6) connected to one group of the roller parts (3) via a support rod (5); The driving portion (6) abuts against one group of the rotating roller portions (3); The support block (1) is provided with a through hole at the lower end, and a nozzle (7) is provided below the through hole; The consumable material can pass through the two sets of roller parts (3) and penetrate the nozzle (7) from the through hole, wherein By driving the motor (4) or manually cranking the driving part (6), one of the roller parts (3) can drive the other roller part (3) to rotate through the consumables, so that the consumables are transported to the nozzle (7).

2. A 3D printer for switching feeding modes as claimed in claim 1, characterized in that: The roller portion (3) comprises a slide rod (31) slidably arranged in the slide groove (2), a transmission shaft rotatably arranged on the slide rod (31), and a conveying wheel (32) arranged on the transmission shaft; The conveying wheel (32) is provided with an annular groove (33), and the edge line of the annular groove (33) is arc-shaped; The consumable material can penetrate and abut against the annular groove (33).

3. A 3D printer for switching feeding modes as claimed in claim 2, characterized in that: The annular groove (33) is provided with a plurality of concave arc grooves (34) in a circumferential manner; A plurality of the recessed arc grooves (34) are capable of contacting consumables.

4. A 3D printer for switching feeding modes as claimed in claim 3, characterized in that: The driving part (6) comprises a rotating wheel (61) rotatably arranged on the support rod (5), and a convex ring (62) arranged outside the rotating wheel (61); The outer wall of the rotating wheel (61) can abut against the conveying wheel (32) The convex ring (62) can be matched, inserted, and abutted against the annular groove (33).

5. A 3D printer for switching feeding modes as claimed in claim 4, characterized in that: One end of the rotating wheel (61) is provided with a hexagonal groove (63) for inserting an external hexagonal wrench; The side edge of the hexagonal groove (63) is inclined from the groove opening toward the groove bottom.

6. A 3D printer for switching feeding modes as claimed in claim 5, characterized in that: An operating rod (8) is rotatably disposed through the slide groove (2); The operating rod (8) is provided with opposing threads (9); The sliding rod (31) is provided with a threaded hole (10), and the two threaded holes (10) are matched and connected with the opposing threads (9).

7. A 3D printer for switching feeding modes as claimed in claim 6, characterized in that: The slide bar (31) is provided with a stop bar (11); The stop bar (11) can press down against the support block (1).

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