Multi-color wire changing mechanism of 3D printer

Abstract

The utility model relates to the technical field of 3D (three-dimensional) printers, and provides a multicolor wire changing mechanism of a 3D printer, which comprises a shell, a glass plate is fixedly embedded in the inner wall of the shell, and a reel is fixedly connected to one side of the inner wall of the shell. According to the multi-color wire winding device, firstly, a plurality of multi-color wire discs are placed on the outer surface of the reel, then an external power source of the motor is turned on, the motor is started through the controller, the output end of the motor starts to drive the circular gear to rotate forwards, and along with continuous forward rotation of the circular gear, the two racks start to move towards the direction of the circular gear; through continuous movement of the two racks, the fixing rods located on the outer surfaces of the two racks start to gradually drive the pop-up rods to be integrally attached to the two sides of the multiple multi-color wire discs, so that fierce shaking of gaps between the multi-color wire discs is prevented, the multi-color wire discs can be better and firmly clamped, and the clamping efficiency is improved. And the printing effect of the 3D printer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printers, in particular to a multi-color wire material wire changing mechanism for a 3D printer. Background Art

[0002] A 3D printer is an advanced manufacturing technology device that can create solid objects according to digital models by stacking materials layer by layer.

[0003] In the prior art, such as Chinese Patent No.: CN216914860U, an automatic wire changing mechanism for a 3D printer includes a rotary wire changing mechanism, a clamping wire feeding mechanism, a detection mechanism and a mounting plate. In the utility model, a main shaft is installed on the mounting plate, and two star-shaped parts are installed on the main shaft. The consumable wire installed in advance is driven by the arc-shaped small hooks at the ends of the star-shaped parts; when the sensor detects that the previous coil of wire is exhausted, the motor drives the main shaft to rotate; the star-shaped parts bring the new consumable to stop at the second sensor; a small gear is installed on the servo motor, a rack is installed on the fixed part, the small gear meshes with the rack, and the rotation of the servo motor drives the fixed part to press the consumable against the large gear; the large gear is installed on the motor, and when the motor rotates, the large gear rotates to feed the consumable wire forward. After the consumable wire is completely fed into the wire feeding channel, the star-shaped parts continue to rotate to take out the consumable. The utility model has the advantages of simple operation, fast, accurate and instant wire changing, high automation degree, reducing the labor intensity of people and improving the utilization rate of the consumable wire.

[0004] Although the above scheme has the above advantages, the disadvantage of the above scheme is that when the traditional multi-color wire material coils are installed on the reel, gaps will be generated between them. When the 3D printer starts to print with multi-color wires, due to the gaps between the multi-color wire material coils, violent shaking will occur, and the multi-color wire material coils cannot be firmly clamped better, which affects the printing effect of the 3D printer. Moreover, the traditional multi-color wire material coils are integrally fixedly installed on the 3D printer, which is not convenient for quick disassembly and installation, resulting in inconvenient replacement of the multi-color wire material coils inside, and reducing the practicability of the multi-color wire material wire changing mechanism of the 3D printer. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problems existing in the prior art that when the traditional multi-color wire material coils are installed on the reel, gaps will be generated between them. When the 3D printer starts to print with multi-color wires, due to the gaps between the multi-color wire material coils, violent shaking will occur, and the multi-color wire material coils cannot be firmly clamped better, which affects the printing effect of the 3D printer. Moreover, the traditional multi-color wire material coils are integrally fixedly installed on the 3D printer, which is not convenient for quick disassembly and installation, resulting in inconvenient replacement of the multi-color wire material coils inside, and reducing the practicability of the multi-color wire material wire changing mechanism of the 3D printer.

[0006] To achieve the above object, the present utility model adopts the following technical solution: A multi-color wire material changing mechanism for a 3D printer: It includes a housing, a glass plate is fixedly embedded on the inner wall of the housing, a reel is fixedly connected to one side of the inner wall of the housing, a plurality of multi-color wire material discs are movably sleeved on the outer surface of the reel, two chutes are opened on one side of the inner wall of the housing, racks are movably embedded on the inner walls of the two chutes, a fixed rod is fixedly connected to one side of the outer surface of the rack, torsion spring columns are fixedly connected to both sides of the inner wall of the fixed rod, a pop-up rod is fixedly connected to the outer surface of the torsion spring column, and a long column is fixedly connected to one side of the outer surface of the pop-up rod.

[0007] As a preferred embodiment, a circular gear is movably connected to one side of the inner wall of the housing, and the outer surface of the circular gear meshes with one side of the outer surface of the rack.

[0008] The technical effect of adopting the above further solution is: As the circular gear continues to rotate forward, the two racks start to move towards the direction of the circular gear.

[0009] As a preferred embodiment, a motor is fixedly installed on one side of the outer surface of the housing, and the output end of the motor is fixedly connected to one side of the outer surface of the circular gear.

[0010] The technical effect of adopting the above further solution is: The output end of the motor starts to drive the circular gear to rotate forward.

[0011] As a preferred embodiment, two bidirectional screws are movably connected to the outer surface of the housing, and a knob is fixedly connected to one end of the two bidirectional screws.

[0012] The technical effect of adopting the above further solution is: By continuously rotating the knob, the knob drives the bidirectional screw to rotate forward, and as the bidirectional screw continues to rotate.

[0013] As a preferred embodiment, two limiting columns are fixedly connected to the outer surface of the housing.

[0014] The technical effect of adopting the above further solution is: The limiting columns limit the arc-shaped clamping plates to prevent the two arc-shaped clamping plates from idling.

[0015] As a preferred embodiment, two arc-shaped clamping plates are threadedly connected to the outer surfaces of the two bidirectional screws, and the two arc-shaped clamping plates are movably sleeved on the outer surfaces of the limiting columns.

[0016] The technical effect of adopting the above further solution is: The two arc-shaped clamping plates located on the surface of the bidirectional screw start to gradually move towards the middle of the bidirectional screw.

[0017] As a preferred embodiment, a sealing door is connected to one side of the outer surface of the housing through a hinge.

[0018] The technical effect of adopting the above further solution is: Open the sealed door, and then push aside the ejecting rod.

[0019] As a preferred implementation manner, one side of the outer surface of the sealed door is fixedly connected with a handle.

[0020] The technical effect of adopting the above further solution is: It is convenient to operate through the handle.

[0021] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0022] 1. In the present utility model, first place a plurality of multi-color wire reels on the outer surface of the reel, then turn on the external power supply of the motor, start the motor by using the controller, and the output end of the motor starts to drive the circular gear to rotate forward. As the circular gear continues to rotate forward, the two racks start to move towards the direction of the circular gear. Through the continuous movement of the two racks, the fixed rods on the outer surfaces of the two racks gradually drive the entire ejecting rod to fit on both sides of the plurality of multi-color wire reels and firmly clamp them. At this time, the two chutes limit the two racks to prevent the two racks from deviating from the track when moving, and clamp both sides of the plurality of multi-color wire reels through the two long columns, thereby preventing the gaps between the multi-color wire reels from shaking violently, being able to better firmly clamp the multi-color wire reels, and improving the printing effect of the 3D printer.

[0023] 2. In the present utility model, first place the whole shell on the two side rods on the surface of the 3D printer, then sequentially place the two arc-shaped clamping plates around the two rods, and then manually rotate the knobs in sequence. By continuously rotating the knobs, the knobs drive the bidirectional screw to rotate forward. As the bidirectional screw continues to rotate, the two arc-shaped clamping plates on the surface of the bidirectional screw start to gradually move towards the middle of the bidirectional screw. At this time, the limit posts limit the arc-shaped clamping plates to prevent the two arc-shaped clamping plates from idling, and clamp the rods on the surface of the D printer by using the two arc-shaped clamping plates, thereby completing the rapid disassembly and assembly of the shell. When it is necessary to replace the plurality of multi-color wire reels, the staff opens the sealed door, then pushes aside the ejecting rod, and sequentially removes and replaces the multi-color wire reels, thereby achieving convenient and rapid disassembly and installation, facilitating the replacement of the multi-color wire reels inside, and improving the practicability of the multi-color wire changing mechanism of the 3D printer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the main structure of a multi-color wire changing mechanism for a 3D printer provided by the present utility model;

[0025] Figure 2 It is a front view structure schematic diagram of a multi-color wire changing mechanism for a 3D printer provided by the present utility model;

[0026] Figure 3 External structural schematic diagram of a multi-color wire material changing mechanism for a 3D printer provided by the present utility model;

[0027] Figure 4 For a multi-color wire material changing mechanism of a 3D printer provided by the present utility model Figure 3 Enlarged structural schematic diagram at position A in the figure.

[0028] Legend description:

[0029] 1. Outer shell; 101. Glass plate; 102. Sealed door; 103. Handle; 104. Reel; 105. Multi-color wire material disk; 106. Slide groove; 107. Rack; 108. Fixed rod; 109. Torsion spring column; 110. Ejecting rod; 111. Long column; 112. Round gear; 113. Motor; 2. Bidirectional screw; 201. Limit column; 202. Arc-shaped clamping plate; 203. Knob. Specific implementation manners

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0031] Embodiment 1, please refer to Figures 1-4 , the present utility model provides a technical solution: a multi-color wire material changing mechanism for a 3D printer, including an outer shell 1, a glass plate 101 is fixedly embedded on the inner wall of the outer shell 1, a reel 104 is fixedly connected to one side of the inner wall of the outer shell 1, a plurality of multi-color wire material disks 105 are movably sleeved on the outer surface of the reel 104, two slide grooves 106 are opened on one side of the inner wall of the outer shell 1, racks 107 are movably embedded on the inner walls of the two slide grooves 106, a fixed rod 108 is fixedly connected to one side of the outer surface of the rack 107, torsion spring columns 109 are fixedly connected to both sides of the inner wall of the fixed rod 108, an ejecting rod 110 is fixedly connected to the outer surface of the torsion spring column 109, a long column 111 is fixedly connected to one side of the outer surface of the ejecting rod 110, a round gear 112 is movably connected to one side of the inner wall of the outer shell 1, the outer surface of the round gear 112 meshes with one side of the outer surface of the rack 107, and a motor 113 is fixedly installed on one side of the outer surface of the outer shell 1, and the output end of the motor 113 is fixedly connected to one side of the outer surface of the round gear 112.

[0032] In this embodiment, first, multiple multi-color wire discs 105 are placed on the outer surface of the reel 104, and then the external power supply of the motor 113 is turned on, and the motor 113 is started by the controller. The output end of the motor 113 begins to drive the circular gear 112 to rotate forward. As the circular gear 112 continues to rotate forward, the two racks 107 begin to move in the direction of the circular gear 112. Through the continuous movement of the two racks 107, the fixed rod 108 located on the outer surfaces of the two racks 107 begins to gradually drive the ejection rod 110 to fit the entirety of the multiple multi-color wire discs 105 on both sides and firmly clamp them. At this time, the two slide grooves 106 limit the two racks 107 to prevent the two racks 107 from deviating from the trajectory when moving, and clamp the multiple multi-color wire discs 105 on both sides through the two long columns 111, so as to prevent the gaps between the multi-color wire discs from causing violent shaking, and can better firmly clamp the multi-color wire discs, thereby improving the printing effect of the 3D printer.

[0033] Embodiment 2, as Figures 1-4 As shown, the outer surface of the shell 1 is movably connected to two bidirectional screws 2, one end of the two bidirectional screws 2 is fixedly connected to a knob 203, the outer surface of the shell 1 is fixedly connected to two limit columns 201, the outer surfaces of the two bidirectional screws 2 are threadedly connected to two arc-shaped clamping plates 202, the interiors of the two arc-shaped clamping plates 202 are movably sleeved on the outer surfaces of the limit columns 201, one side of the outer surface of the shell 1 is connected to a sealing door 102 through a hinge, and one side of the outer surface of the sealing door 102 is fixedly connected to a handle 103.

[0034] In this embodiment, the housing 1 is first placed as a whole on the two side rods on the surface of the 3D printer, and then the two arc-shaped clamping plates 202 are placed on the periphery of the two rods respectively, and then the knob 203 is manually turned in turn. By continuously turning the knob 203, the knob 203 drives the bidirectional screw 2 to rotate forward. As the bidirectional screw 2 continues to rotate, the two arc-shaped clamping plates 202 located on the surface of the bidirectional screw 2 begin to gradually move toward the middle of the bidirectional screw 2. At this time, the limit column 201 is on the arc-shaped clamping plates 20 2 is limited to prevent the two arc-shaped clamping plates 202 from idling, and the two arc-shaped clamping plates 202 are used to clamp the rods on the surface of the 3D printer, so as to complete the rapid disassembly and assembly of the shell 1. When multiple multi-color filament discs 105 need to be replaced, the staff opens the sealing door 102, then pushes the ejection rod 110 away, and successively removes and replaces the multi-color filament discs 105, thereby facilitating rapid disassembly and installation, and facilitating the replacement of the multi-color filament discs inside, thereby improving the practicality of the multi-color filament changing mechanism of the 3D printer.

[0035] Working principle: When in use, first place a plurality of multi-color filament disks 105 on the outer surface of the reel 104, then turn on the external power supply of the motor 113, use the controller to start the motor 113, and the output end of the motor 113 begins to drive the circular gear 112 to rotate forward. As the circular gear 112 continues to rotate forward, the two racks 107 begin to move in the direction of the circular gear 112. Through the continuous movement of the two racks 107, the fixed rod 108 located on the outer surfaces of the two racks 107 begins to gradually drive the ejection rod 110 to fit the entirety of the plurality of multi-color filament disks 105 on both sides and firmly clamp them. At this time, the two slide grooves 106 limit the two racks 107 to prevent the two racks 107 from deviating from the trajectory when moving, and clamp the two sides of the plurality of multi-color filament disks 105 through the two long columns 111, so as to prevent the gaps between the multi-color filament disks from causing violent shaking, and can better firmly clamp the multi-color filament disks, thereby improving the printing effect of the 3D printer, and First, place the shell 1 as a whole on the two side rods on the surface of the 3D printer, and then place the two arc-shaped clamping plates 202 on the periphery of the two rods respectively, and then manually turn the knob 203 in turn. By continuously turning the knob 203, the knob 203 drives the bidirectional screw 2 to rotate forward. As the bidirectional screw 2 continues to rotate, the two arc-shaped clamping plates 202 located on the surface of the bidirectional screw 2 begin to gradually move toward the middle of the bidirectional screw 2. At this time, the limit column 201 limits the arc-shaped clamping plates 202 to prevent the two arc-shaped clamping plates 202 from idling, and use the two arc-shaped clamping plates 202 to clamp the rods on the surface of the 3D printer, so as to complete the rapid disassembly and assembly of the shell 1. When multiple multi-color filament discs 105 need to be replaced, the staff opens the sealing door 102, then pushes the ejection rod 110 away, and removes and replaces the multi-color filament discs 105 in turn, so as to facilitate rapid disassembly and installation, and facilitate the replacement of the multi-color filament discs inside it, thereby improving the practicality of the multi-color filament changing mechanism of the 3D printer.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A 3D printer multi-color filament changing mechanism, comprising a housing (1), characterized in that: A glass plate (101) is fixedly embedded in the inner wall of the shell (1), a reel (104) is fixedly connected to one side of the inner wall of the shell (1), a plurality of multi-color wire discs (105) are movably sleeved on the outer surface of the reel (104), two slide grooves (106) are provided on one side of the inner wall of the shell (1), racks (107) are movably embedded on the inner walls of the two slide grooves (106), a fixed rod (108) is fixedly connected to one side of the outer surface of the rack (107), torsion spring columns (109) are fixedly connected to both sides of the inner wall of the fixed rod (108), an ejection rod (110) is fixedly connected to the outer surface of the torsion spring column (109), and a long column (111) is fixedly connected to one side of the outer surface of the ejection rod (110).

2. A 3D printer multi-color filament changing mechanism according to claim 1, characterized in that: A circular gear (112) is movably connected to one side of the inner wall of the housing (1), and the outer surface of the circular gear (112) is meshed with one side of the outer surface of the rack (107).

3. A 3D printer multi-color filament changing mechanism according to claim 1, characterized in that: A motor (113) is fixedly mounted on one side of the outer surface of the housing (1), and an output end of the motor (113) is fixedly connected to one side of the outer surface of the circular gear (112).

4. A 3D printer multi-color filament changing mechanism according to claim 1, characterized in that: Two bidirectional screw rods (2) are movably connected to the outer surface of the housing (1), and a knob (203) is fixedly connected to one end of the two bidirectional screw rods (2).

5. A 3D printer multi-color filament changing mechanism according to claim 1, characterized in that: Two limiting columns (201) are fixedly connected to the outer surface of the housing (1).

6. A 3D printer multi-color filament changing mechanism according to claim 4, characterized in that: The outer surfaces of the two bidirectional screws (2) are both threadedly connected to two arc-shaped clamping plates (202), and the interiors of the two arc-shaped clamping plates (202) are movably sleeved on the outer surface of the limiting column (201).

7. A 3D printer multi-color filament changing mechanism according to claim 6, characterized in that: A sealing door (102) is connected to one side of the outer surface of the housing (1) via a hinge.

8. A 3D printer multi-color filament changing mechanism according to claim 7, characterized in that: A handle (103) is fixedly connected to one side of the outer surface of the sealing door (102).

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