3D printing wire rod residual material regeneration device

Abstract

The invention discloses a 3D printing wire residual material regeneration device. Comprising a bottom plate, a mounting frame fixedly arranged on the bottom plate, a first conveying wheel and a second conveying wheel, wherein the first conveying wheel and the second conveying wheel are arranged on the mounting frame and used for conveying wires; the power mechanism is used for driving the first conveying wheel and the second conveying wheel to synchronously rotate in the same direction and synchronously rotate in different directions; and the heating assembly is positioned between the first conveying wheel and the second conveying wheel and is used for heating the wire rods. According to the 3D printing wire residual material regeneration device, through cooperation of the heating assembly and the conveying wheel, wires which are about to be used up can be rewound after being heated and connected in a butt joint mode, the wires which cannot be used due to bending or damp originally can be reheated and straightened, the wires are restored to be in an available state, and waste of the wires is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing, and in particular to a 3D printing wire material regeneration device. Background Art

[0002] Existing 3D printing equipment (such as FDM 3D printing equipment) usually uses reel-type wire. After being unused for a long time, the wire is easily affected by moisture and becomes brittle, resulting in material breakage during printing, affecting the printing quality. The damp wire not only reduces the printing success rate, but also increases material waste. When the wire is almost used up, the remaining part is usually wound in the center of the reel with a large degree of bending. This kind of bent wire has a more prominent problem of material breakage during printing. Since these wires are difficult to use directly, users often choose to discard them, resulting in material waste. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a 3D printing wire waste material regeneration device.

[0004] To achieve the above purpose, a technical solution adopted by the present invention is: to provide a 3D printing wire waste material regeneration device, including a base plate, a mounting frame fixedly arranged on the base plate, a first conveying wheel and a second conveying wheel for conveying wire arranged on the mounting frame, a power mechanism for driving the first conveying wheel and the second conveying wheel to rotate synchronously in the same direction and synchronously in opposite directions, and a heating component located between the first conveying wheel and the second conveying wheel for heating the wire.

[0005] Furthermore, the power mechanism includes a driving gear installed on the mounting frame, a driving device for driving the driving gear to rotate, a first driven gear, a reversing gear set and a second driven gear; the first driven gear is meshed with the driving gear and can drive the first conveying wheel to rotate, and the second driven gear can drive the second conveying wheel to rotate; the reversing gear set is transmission-connected between the driving gear and the second driven gear, and the second driven gear is realized by the reversing gear set to realize synchronous same-direction rotation or synchronous opposite-direction rotation with the first driven gear set, thereby driving the second conveying wheel to realize synchronous same-direction rotation or synchronous opposite-direction rotation with the first conveying wheel.

[0006] Furthermore, the reversing gear set includes a first reversing gear slidably set on a mounting frame, a second reversing gear slidably set on the mounting frame and meshed between the second driven gear and the first reversing gear, and a connecting rod used to connect the first reversing gear and the second reversing gear so that the two remain meshed in any state; the first reversing gear and the second reversing gear can be respectively meshed with the driving gear, when the first reversing gear is meshed with the driving gear, the second reversing gear is separated from the driving gear, and the second driven gear is connected to the driving gear through the second reversing gear and the first reversing gear; when the second reversing gear is meshed with the driving gear, the first reversing gear is separated from the driving gear, and the second driven gear is connected to the driving gear through the second reversing gear to change the rotation direction of the second transmission gear.

[0007] Furthermore, the mounting frame is provided with a first sliding portion and a second sliding portion, and the first reversing gear and the second reversing gear are respectively slidably connected to the first sliding portion and the second sliding portion; when the first reversing gear is meshed with the driving gear, the first reversing gear is located at an end of the first sliding portion close to the driving gear, and the second reversing gear is located at an end of the second sliding portion away from the driving gear; when the second reversing gear is meshed with the driving gear, the second reversing gear is located at an end of the second sliding portion close to the driving gear and the first reversing gear is located at an end of the first sliding portion away from the driving gear.

[0008] Furthermore, the mounting frame is also provided with a first limiting member and a second limiting member for limiting the first reversing gear and the second reversing gear at two ends of the first sliding portion and the second sliding portion respectively;

[0009] A first connecting shaft is fixedly connected to the first reversing gear. The first reversing gear is slidably connected to the first sliding part through the first connecting shaft. The first limiting member includes a first limiting rod. One end of the first limiting rod is rotatably connected to one side of the first sliding part through a first rotating shaft. A first limiting pin is provided at the other end of the first limiting rod. A first top limiting groove and a first bottom limiting groove adapted to the first limiting pin are respectively provided at the top and bottom of the other side of the first sliding part. A second connecting shaft is fixedly connected to the second reversing gear. The second reversing gear is slidably connected to the second sliding part through the second connecting shaft. The second limiting member includes a second limiting rod. One end of the second limiting rod is rotatably connected to one side of the second sliding part through a second rotating shaft. A second limiting pin is provided at the other end of the second limiting rod. A second top limiting groove and a second bottom limiting groove adapted to the second limiting pin are respectively provided at the top and bottom of the other side of the second sliding part. When the first reversing gear meshes with the driving gear, the first limiting pin is inserted into the first bottom limiting groove and the first limiting rod is close to or in contact with the upper side of the first connecting shaft. The second limiting pin is inserted into the second top limiting groove and the second limiting rod is close to or in contact with the lower side of the second connecting shaft. When the second reversing gear meshes with the driving gear, the first limiting pin is inserted into the first top limiting groove and the first limiting rod is close to or in contact with the lower side of the first connecting shaft. The second limiting pin is inserted into the second bottom limiting groove and the second limiting rod is close to or in contact with the upper side of the second connecting shaft.

[0010] Further, first arc grooves and second arc grooves adapted to the outer diameters of the first connecting shaft and the second connecting shaft are respectively provided at the contact positions of the first limiting rod and the second limiting rod with the first connecting shaft and the second connecting shaft.

[0011] Further, grooves for limiting the wire are circumferentially provided along the outer perimeters of the first driven gear and the second driven gear.

[0012] Further, a winding mechanism for winding the wire is provided at one end of the mounting bracket. The winding mechanism includes a first bevel gear, a second bevel gear and a winding disc. The first bevel gear is coaxially arranged with the second driven gear. The second bevel gear is rotatably connected to one end of the mounting bracket close to the second driven gear and meshes with the first bevel gear. A rotating shaft is provided outside the second bevel gear. The winding disc is sleeved outside the rotating shaft.

[0013] Further, the heating component includes a support base, a heating block, and a heating rod. The support base is fixedly connected to the bottom plate. The heating block is disposed on the top of the support base. The heating rod is arranged inside the heating block. The heating block is provided with a perforation for the wire to pass through along the conveying direction of the first conveying wheel and the second conveying wheel.

[0014] Further, the mounting bracket includes a vertically arranged mounting base and a mounting cover detachably covering the vertical surface of the mounting base. The first conveying wheel, the second conveying wheel, and the power mechanism are all arranged between the mounting base and the mounting cover. The mounting base and / or the mounting cover is provided with reinforcing ribs.

[0015] A 3D printing wire leftover recycling device of the present invention can, through the cooperation of the heating component and the conveying wheels, heat and butt the nearly used-up wire and then rewind it, improving the utilization rate of the wire. And it can reheat and straighten the wire that was originally unusable due to bending or moisture, making it return to a usable state and reducing wire waste. This tool has a simple structure, is easy to operate, and has wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of an embodiment of the 3D printing wire leftover recycling device of the present invention.

[0017] Figure 2 It is a schematic structural diagram of the mounting base in an embodiment of the 3D printing wire leftover recycling device of the present invention.

[0018] Figure 3 It is a schematic structural diagram of the mounting cover in an embodiment of the 3D printing wire leftover recycling device of the present invention.

[0019] Figure 4 It is a schematic diagram of the transmission structure of the power mechanism with the first conveying wheel and the second conveying wheel in an embodiment of the present invention.

[0020] Figure 5 It is a schematic diagram of the connection structure of the first limiting member and the second limiting member with the first connecting shaft and the second connecting shaft of the present invention.

[0021] Figure 6 It is Figure 1 a schematic structural diagram from another perspective.

[0022] The meanings of the reference numerals in the drawings are as follows: the first conveying wheel 1; the second conveying wheel 2; the power mechanism 3; the driving gear 31; the driving device 32; the first driven gear 33; the reversing gear set 34; the first reversing gear 341; the second reversing gear 342; the connecting rod 343; the second driven gear 35; the heating assembly 4; the support base 41; the heating block 42; the heating rod 43; the heat insulation pad 44; the mounting bracket 5; the first sliding part 51; the second sliding part 52; the mounting seat 53; the mounting cover 54; the first top limiting groove 541; the first bottom limiting groove 542; the second top limiting groove 543; the second bottom limiting groove 544; the groove 6; the winding mechanism 7; the first bevel gear 71; the second bevel gear 72; the rotating shaft 721; the reinforcing rib 8; the bottom plate 9; the first limiting member 10; the first limiting rod 101; the first rotating shaft 102; the first limiting pin 103; the first arc-shaped groove 104; the second limiting member 11; the second limiting rod 111; the second rotating shaft 112; the second limiting pin 113; the second arc-shaped groove 114. Detailed implementation manners

[0023] The following further explains through specific implementation manners:

[0024] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the 3D printing wire material waste recycling device of the present invention is used for butt-winding two sets of spooled wire materials that are about to be used up. After multiple butt-joint recombinations, a spool with more and longer wire materials is formed. Therefore, the 3D printing wire material waste recycling device can also be called a 3D printing wire material waste recombination device. The 3D printing wire material waste recycling device includes a bottom plate 9, a mounting bracket 5 fixedly arranged on the bottom plate 9, a first conveying wheel 1 and a second conveying wheel 2 arranged on the mounting bracket 5 for conveying wire materials, a power mechanism 3 for driving the first conveying wheel 1 and the second conveying wheel 2 to rotate synchronously in the same direction and synchronously in the opposite direction, and a heating assembly 4 located between the first conveying wheel 1 and the second conveying wheel 2 for heating the wire materials. The 3D printing wire material waste recycling device of the present invention, through the cooperation of the heating assembly 4, the first conveying wheel 1 and the second conveying wheel 2, can heat and butt-joint the wire materials that are about to be used up and then wind them again, and can reheat and straighten the wire materials that were originally unusable due to bending or moisture, so that they can be restored to a usable state, reducing the waste of wire materials.

[0025] In this embodiment, the mounting bracket 5 includes a vertically arranged mounting base 53 and a mounting cover 54 detachably covering the vertical surface of the mounting base 53. The first conveying wheel 2, the second conveying wheel 2 and the power mechanism 3 are all arranged between the mounting base 53 and the mounting cover 54. The mounting base 53 and the mounting cover 54 are fixedly connected by screws. The screw connection ensures the firm connection between the mounting base 53 and the mounting cover 54 and enhances the stability of the overall structure. And the screw connection method enables the mounting cover 54 to be easily disassembled, facilitating the maintenance and replacement of internal components. At the same time, reinforcing ribs 8 are provided on the mounting base 53 and / or the mounting cover 54. In this embodiment, reinforcing ribs 8 are provided on the outer sides of both the mounting base 53 and the mounting cover 54. By providing the reinforcing ribs 8, the mechanical strength of the mounting base 53 and the mounting cover 54 is improved, avoiding deformation or damage, and effectively enhancing the durability of the tool. The heating assembly 4 includes a support base 41, a heating block 42 and a heating rod 43. The heating block 42 is arranged on the top of the support base 41, and the heating rod 43 is arranged inside the heating block 42. The heating block 42 is provided with a through hole 421 for the wire to pass through the heating block 42 along the conveying direction of the first conveying wheel 1 and the second conveying wheel 2. Through the combination of the heating block 43 and the heating rod 43, it is ensured that the wire can be uniformly heated and its flexibility can be restored. At the same time, a heat insulation pad 44 is provided between the heating block 42 and the support base 41. The design of the heat insulation pad 42 prevents heat from being transferred to the support base 41 and other components, avoiding equipment damage, and can also gather more heat in the heating block to prevent heat loss. In this embodiment, the heating assembly 4 is externally connected to a power supply, and the heating rod 43 is controlled to heat through the externally connected power supply. For the sake of stronger integrity of the overall structure, in this embodiment, the bottom plate 9 supports the mounting bracket 5 and the heating assembly 4. The support base 41 in the heating assembly 4 is fixedly installed on the upper surface of the bottom plate 9, making the entire device form an integral whole and facilitating portability.

[0026] It should be understood that in other embodiments, the first conveying wheel 1 and the second conveying wheel 2 can also be directly arranged on the power mechanism 3. The power mechanism 3 can be two sets of rotating motors capable of forward and reverse rotation (the axis lines of the two motors are parallel). The first conveying wheel 1 and the second conveying wheel 2 can be respectively arranged on the two rotating motors. Through the synchronous and opposite rotation of the rotating motors (making the two sets of rotating motors rotate towards each other), the first conveying wheel 1 and the second conveying wheel 2 complete the butt joint of the wire in the opposite direction. Through the synchronous and same-direction rotation of the rotating motors, the first conveying wheel and the second conveying wheel rotate in the same direction synchronously for winding.

[0027] When it is necessary to integrate two groups of unused wires, the ends of the two groups of wires must first be fused and docked. Specifically, the ends of the two groups of corresponding wires are placed on the outer surfaces of the first conveying wheel 1 and the second conveying wheel 2, respectively. In this embodiment, the first conveying wheel 1 and the second conveying wheel 2 are respectively located on the right and left sides of the mounting frame 2. The first conveying wheel 1 and the second conveying wheel 2 are driven by the power mechanism 3 so that the two groups of wires are conveyed toward the direction of the heating component 4, and then fused and docked by the heating component 4. At this time, the first conveying wheel 1 and the second conveying wheel 2 are synchronously rotated in opposite directions; after the fusion and docking of the two groups of wires are completed, the first conveying wheel 1 and the second conveying wheel 2 are driven by the power mechanism 3 to rotate synchronously in the same direction to reel the wires, and the wires can be softened after passing through the heating component 4 for next use. When only a group of wires that have not been used for a long time need to be heated and softened, only the ends of the wires need to be placed on the surface of the first conveying wheel 1 or the second conveying wheel 2, and the first conveying wheel 1 or the second conveying wheel 2 is driven by the power mechanism 3 to rotate toward the direction of the heating component 4. Specifically, when the wire is placed on the first conveying wheel 1, the power mechanism 3 drives the first conveying wheel to rotate toward the heating component 4, and the second conveying wheel 2 rotates in a direction away from the heating component 4; or when the wire is placed on the second conveying wheel 2, the power mechanism 3 drives the second conveying wheel 2 to rotate toward the heating component 4, and the first conveying wheel 1 rotates in a direction away from the heating component 4. In this state, the first conveying wheel 1 and the second conveying wheel 2 rotate synchronously in the same direction.

[0028] To achieve the above effect, in this embodiment, the power mechanism 3 includes a driving gear 31 installed on the mounting frame 5, a driving device 32 for rotating the driving gear 31, a first driven gear 33, a reversing gear set 34, and a second driven gear 35. The first driven gear 33 is meshed with the driving gear 31 and can drive the first conveying wheel 2 to rotate, the second driven gear 35 can drive the second conveying wheel 2 to rotate, the reversing gear set 34 is transmission-connected between the driving gear 31 and the second driven gear 35, and the second driven gear 35 is realized to rotate synchronously with the first driven gear 33 or synchronously rotate in opposite directions through the reversing gear set 34, thereby driving the second conveying wheel 2 to rotate synchronously with the first conveying wheel 1 or synchronously rotate in opposite directions. In this embodiment, the first driven gear 33 and the second driven gear 35 are respectively arranged in the direction of the first conveying wheel 1 and the second conveying wheel 2 to drive the first conveying wheel 1 and the second conveying wheel 2 to rotate, the driving gear 31 is arranged above the first driven gear 33 and meshes with the first driven gear 33, and the driving device 32 is a handle arranged outside the driving gear 31. Designing the driving device 32 as a handle allows the user to control the rotation speed and direction of the first conveying wheel 1 and the second conveying wheel 2 to avoid too fast or too slow conveying of the wire.

[0029] In this embodiment, the reversing gear set 34 includes a first reversing gear 341 slidably disposed on the mounting frame, a second reversing gear 342 slidably disposed on the mounting frame and meshed between the second driven gear 35 and the first reversing gear 341, and a connecting rod 343 for connecting the first reversing gear 341 and the second reversing gear 342 so that the two remain meshed in any state. The first reversing gear 341 and the second reversing gear 342 can be meshed with the driving gear 31 respectively. When the first reversing gear 341 is meshed with the driving gear 31, the second reversing gear 342 is separated from the driving gear 31, and the second driven gear 35 is connected to the driving gear 31 through the second reversing gear 342 and the first reversing gear 341. When the second reversing gear 342 is meshed with the driving gear 31, the first reversing gear 341 is separated from the driving gear 31, and the second driven gear 35 is connected to the driving gear 31 through the second reversing gear 342 to change the rotation direction of the second transmission gear 35. In order for the first reversing gear 341 and the second reversing gear 342 to slide, a first sliding portion 51 and a second sliding portion 52 are provided on the mounting frame 5, and the first reversing gear 341 and the second reversing gear 342 are respectively slidably connected to the first sliding portion 51 and the second sliding portion 52. When the first reversing gear 341 is meshed with the driving gear 31, the first reversing gear 341 is located at an end of the first sliding portion 51 close to the driving gear 31, and the second reversing gear 342 is located at an end of the second sliding portion 52 away from the driving gear 31. When the second reversing gear 342 is meshed with the driving gear 31, the second reversing gear 342 is located at an end of the second sliding portion 52 close to the driving gear 31 and the first reversing gear 341 is located at an end of the first sliding portion 51 away from the driving gear 31. Specifically, in this embodiment, both the first sliding portion 51 and the second sliding portion 52 are sliding grooves that penetrate the mounting frame 5 from front to back. The first sliding portion 51 is arranged above the driving gear 51, the bottom end of the first sliding portion 51 is close to the driving gear 31, and the top end of the first sliding portion 51 extends in a direction away from the driving gear 31. The second sliding portion 52 is arranged above the second driven gear 35, the top end of the second sliding portion 52 is arranged directly above the second driven gear 35, and the bottom end of the second sliding portion 52 is arranged on one side of the second driven gear 35. When the first reversing gear 341 is meshed with the driving gear 31, the first reversing gear 341 is located at the bottom end of the first sliding portion 51 and the first reversing gear 341 is located at the top end of the second sliding portion 52, that is, directly above the second driven gear 35. When the first reversing gear 341 and the second reversing gear 342 slide, the first reversing gear 341 slides toward the top of the first sliding portion 51 until it is disengaged from the driving gear 31, and the second reversing gear 342 slides toward the bottom of the second sliding portion 52 until it is meshed with the driving gear 31.

[0030] When the first reversing gear 341 and the second reversing gear 342 slide to both ends of the first sliding part 51 and the second sliding part 52, it is necessary to fix the positions of the first reversing gear 341 and the second reversing gear 342 to prevent the first reversing gear 341 and the second reversing gear 342 from being disengaged when driving the driving pinion 31 to rotate. In this embodiment, a first limiting member 10 and a second limiting member 11 are further provided on the mounting bracket 5 for respectively limiting the first reversing gear 341 and the second reversing gear 342 at both ends of the first sliding part 51 and the second sliding part 52. Specifically, a first connecting shaft 3411 is fixedly connected to the first reversing gear 341, and the first reversing gear 341 is slidably connected to the first sliding part 51 through the first connecting shaft 3411. The first limiting member 10 includes a first limiting rod 101. One end of the first limiting rod 101 is rotatably connected to one side of the first sliding part 51 through a first rotating shaft 102, and a first limiting pin 103 is provided at the other end of the first limiting rod 101. A first top limiting groove 541 and a first bottom limiting groove 542 adapted to the first limiting pin 103 are respectively provided at the top and bottom of the other side of the first sliding part 51. A second connecting shaft 3421 is fixedly connected to the second reversing gear 342, and the second reversing gear 342 is slidably connected to the second sliding part 52 through the second connecting shaft 3421. The second limiting member 11 includes a second limiting rod 111. One end of the second limiting rod 111 is rotatably connected to one side of the second sliding part 52 through a second rotating shaft 112, and a second limiting pin 113 is provided at the other end of the second limiting rod 111. A second top limiting groove 543 and a second bottom limiting groove 544 adapted to the second limiting pin 113 are respectively provided at the top and bottom of the other side of the second sliding part 52. When the first reversing gear 341 meshes with the driving pinion 31, the first limiting pin 103 is inserted into the first limiting bottom groove 542 and the upper side of the first limiting rod 101 close to the first connecting shaft 3411 or contacts therewith. The second limiting pin 113 is inserted into the second top limiting groove 543 and the lower side of the second limiting rod 111 close to the second connecting shaft 3421 or contacts therewith. Specifically, when the second reversing gear 342 meshes with the driving pinion 31, the first limiting pin 101 is inserted into the first top limiting groove 541 and the lower side of the first limiting rod 101 close to the first connecting shaft 3411 or contacts therewith, the second limiting pin 113 is inserted into the second bottom limiting groove 544, and the upper side of the second limiting rod 111 close to the second connecting shaft 3421 or contacts therewith. Through the cooperation of the first limiting rod 101 and the second limiting rod 111 with the limiting grooves by the first limiting pin 103 and the second limiting pin 113, the positions of the first reversing gear 341 and the second reversing gear 342 can be quickly and accurately locked. This design simplifies the operation steps, improves the operation efficiency of the equipment, ensures the stability of the gears in the meshing state, reduces equipment failures caused by gear loosening or misalignment, and improves the overall reliability of the equipment.To further enhance the stability of the limit, first arc grooves 104 and second arc grooves 114 that are adapted to the outer diameters of the first connecting shaft 3411 and the second connecting shaft 3421 are respectively provided at the contact positions between the first limit rod 101 and the second limit rod 102 and the first connecting shaft 3411 and the second connecting shaft 3421. By providing the first arc grooves 104 and the second arc grooves 114, the contact surfaces between the first limit rod 101 and the second limit rod 111 and the first connecting shaft 3411 and the second connecting shaft 3421 are increased, making the contact between the first limit rod 101 and the second limit rod 111 and the first connecting shaft 3411 and the second connecting shaft 3421 closer and more stable, and improving the operation stability of the device.

[0031] During specific use, when it is necessary to dock two groups of wire materials, the first conveying wheel 1 and the second conveying wheel 2 both rotate towards the heating component 4. First, drive the driving gear 31 to rotate, and disengage the first reversing gear 331 from the driving gear 31. At this time, rotate the driving gear 31 counterclockwise. Since the first driven gear 32 meshes with the driving gear 31, the counterclockwise rotating driving gear 31 will drive the first driving gear 32 to rotate clockwise. At the same time, the clockwise rotating first driving gear 32 will drive the first conveying wheel 1 to rotate counterclockwise. At this time, the wire material moves towards the heating component 4 through the first conveying wheel 1. Since the first reversing gear 331 is disengaged from the driving gear 31, the second reversing gear 332 meshes with the driving gear 31 and the second driven gear 34 respectively at this time. The counterclockwise rotating driving gear 31 will drive the second reversing gear 332 to rotate clockwise. The clockwise rotating second reversing gear 332 will drive the second driven gear 34 to rotate counterclockwise. The counterclockwise rotating second driven gear 34 will drive the second conveying wheel 2 to rotate clockwise, that is, towards the heating component 4. At this time, the first conveying wheel 1 and the second conveying wheel 2 rotate synchronously in opposite directions. When the two groups of wire materials enter the heating component 4, after the two groups of wire materials are fused and connected, it is necessary to move the first conveying wheel 1 and the second conveying wheel 2 synchronously in the same direction at this time. Specifically, slide the first reversing gear 331 towards the driving gear 31 until the first reversing gear 341 is located at the bottom end of the first sliding portion 51 and meshes with the driving gear 31. At this time, the second reversing gear 332 slides towards the top end of the second sliding portion 52 and disengages from the driving gear 31. In this state, the first reversing gear 331 meshes with the driving gear 31 and the second reversing gear 332. When the first reversing gear 331 meshes with the driving gear 31, rotate the handle 311 counterclockwise. At this time, the counterclockwise rotating driving gear 31 drives the first reversing gear 331 to rotate clockwise. The clockwise rotating first reversing gear 331 drives the second reversing gear 332 to rotate counterclockwise. The counterclockwise rotating second reversing gear 332 drives the second driven gear 34 to rotate clockwise. The clockwise rotating second driven gear 34 drives the second conveying wheel 2 to rotate counterclockwise. Since the meshing between the driving gear 31 and the first driven gear 32 remains unchanged, the first conveying wheel 1 also keeps rotating counterclockwise. At this time, the first conveying wheel 1 and the second conveying wheel 2 rotate synchronously in the same direction. At this time, the wire material can be heated and softened and then wound. The wire material after being heated and softened is output from the left end and becomes the regenerated 3D printing wire material.

[0032] When the first conveying wheel 1 and the second conveying wheel 2 convey the wire, in order to limit the wire, grooves 6 for limiting the wire are circumferentially arranged along the outer perimeters of the first driven gear 33 and the second driven gear 35. Specifically, the groove 6 is an arc-shaped groove adapted to the wire. Since the first driven gear 33 and the second driven gear 35 are respectively arranged above the first conveying wheel 1 and the second conveying wheel 2 and drive the first conveying wheel 1 and the second conveying wheel 2 to rotate, the first driven gear 33 and the second driven gear 35 are respectively in contact with the first conveying wheel 1 and the second conveying wheel 2. By setting the groove 6, the wire can be restricted on a fixed path, preventing the wire from detaching or tangling, and reducing the risks of equipment failures and safety accidents. It should be noted that if it is necessary to change the direction of the co-rotation of the first conveying wheel 1 and the second conveying wheel 2, only the rotation direction of the driving gear 31 needs to be changed, which will not be elaborated here.

[0033] In order to make the winding process more convenient, in this embodiment, a winding mechanism 7 for winding the wire is provided at one end of the mounting bracket 5. The winding mechanism 7 includes a first bevel gear 71, a second bevel gear 72, and a winding disc (not shown in the figure). In this embodiment, since the driving gear 31 rotates counterclockwise, one end of the second conveying wheel 2 is the wire output end. Therefore, the first bevel gear 71 is coaxially arranged with the second driven gear 35. The second bevel gear 72 is rotatably connected to one end of the mounting bracket 5 close to the second driven gear 35 and meshes with the first bevel gear 71. A rotating shaft 721 is arranged outside the second bevel gear 72, and the winding disc is sleeved outside the rotating shaft 721. Through the meshing transmission of the first bevel gear 71 and the second bevel gear 72, the rotation of the second driven gear 34 can drive the rotation of the rotating shaft 721, thereby driving the winding disc to rotate for automatic winding of the wire. The design of this structure reduces manual operation, improves efficiency, and makes the overall structure more automated.

[0034] Based on the above embodiments, the 3D printing wire scrap recycling device of the present invention has the following beneficial effects: In this solution, both the mounting frame and the heating component are fixedly installed on the bottom plate, making the entire device form an integral whole, which is convenient for carrying and moving, and enhances the practicality of the equipment. The mounting frame is designed with screw connections and reinforcing ribs, enhancing the stability and durability of the overall structure, and avoiding deformation or damage of the equipment during long-term use. Through the synchronous rotation in the same direction or synchronous rotation in the opposite direction of the first conveying wheel and the second conveying wheel, the functions of wire conveying, docking, and winding are realized. The power mechanism can flexibly control the rotation direction of the first conveying wheel and the second conveying wheel through the design of the gear set and the reversing gear set, ensuring the smooth operation of the wire during the heating docking and winding processes. The wires conveyed by the first conveying wheel and the second conveying wheel are heated and fused together by the heating component for two groups of unused wires, reconnecting them into a longer wire spool. For wires that have not been used for a long time, they are softened by the heating component, which can soften the wires that were originally damp and brittle, restoring their flexibility so that they can be reused for 3D printing, avoiding the problem of wire breakage caused by brittle wires. An insulating pad is provided between the heating component and the support seat to prevent heat from being transferred to other components, avoiding equipment damage, while improving the heating efficiency and ensuring uniform heating of the wire. At the same time, the winding mechanism realizes automatic winding of the wire through bevel gear transmission, reducing manual operation and improving efficiency. Through the meshing transmission of the first bevel gear and the second bevel gear, the rotation of the second driven gear can drive the winding disc to rotate, realizing automatic winding of the wire and further improving the automation degree of the device. This solution effectively solves problems such as dampness and brittleness of 3D printing wires through technical means such as heating docking, heating softening, and automatic winding of wires, reducing material waste and increasing the utilization rate of wires. At the same time, the device has a reasonable structure design, convenient operation, high automation degree, and high practicality and economy.

[0035] The above are only embodiments of the present invention. Common knowledge such as specific structures and characteristics that are well-known in the art are not described in detail here. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the present invention.

Claims

1. A 3D printing wire material regeneration device, characterized in that: The invention comprises a bottom plate, a mounting frame fixed on the bottom plate, a first conveying wheel and a second conveying wheel for conveying wires arranged on the mounting frame, a power mechanism for driving the first conveying wheel and the second conveying wheel to rotate synchronously in the same direction and synchronously in different directions, and a heating component located between the first conveying wheel and the second conveying wheel for heating the wires.

2. The 3D printing wire material regeneration device according to claim 1, characterized in that: The power mechanism includes a driving gear installed on the mounting frame, a driving device for driving the driving gear to rotate, a first driven gear, a reversing gear set and a second driven gear; the first driven gear is meshed with the driving gear and can drive the first conveying wheel to rotate, and the second driven gear can drive the second conveying wheel to rotate; the reversing gear set is transmission-connected between the driving gear and the second driven gear, and the second driven gear is realized by the reversing gear set to realize synchronous same-direction rotation or synchronous opposite-direction rotation with the first driven gear set, thereby driving the second conveying wheel to realize synchronous same-direction rotation or synchronous opposite-direction rotation with the first conveying wheel.

3. The 3D printing wire material regeneration device according to claim 2, characterized in that: The reversing gear set includes a first reversing gear slidably arranged on a mounting frame, a second reversing gear slidably arranged on the mounting frame and meshed between the second driven gear and the first reversing gear, and a connecting rod for connecting the first reversing gear and the second reversing gear so that the two remain meshed in any state; the first reversing gear and the second reversing gear can be meshed with the driving gear respectively, when the first reversing gear is meshed with the driving gear, the second reversing gear is separated from the driving gear, and the second driven gear is connected to the driving gear through the second reversing gear and the first reversing gear; when the second reversing gear is meshed with the driving gear, the first reversing gear is separated from the driving gear, and the second driven gear is connected to the driving gear through the second reversing gear to change the rotation direction of the second transmission gear.

4. The 3D printing wire material regeneration device according to claim 3, characterized in that: The mounting frame is provided with a first sliding portion and a second sliding portion, and the first reversing gear and the second reversing gear are slidably connected to the first sliding portion and the second sliding portion respectively; when the first reversing gear is meshed with the driving gear, the first reversing gear is located at an end of the first sliding portion close to the driving gear, and the second reversing gear is located at an end of the second sliding portion away from the driving gear; when the second reversing gear is meshed with the driving gear, the second reversing gear is located at an end of the second sliding portion close to the driving gear and the first reversing gear is located at an end of the first sliding portion away from the driving gear.

5. The 3D printing wire material regeneration device according to claim 4, characterized in that: The mounting frame is also provided with a first limiting member and a second limiting member for limiting the first reversing gear and the second reversing gear at two ends of the first sliding portion and the second sliding portion respectively; The first gear is connected with the gear train of the first transmission gear, and the second gear is connected with the gear train of the first transmission gear through the first transmission gear, and the gear train is connected with the gear train of the first transmission gear through the first transmission gear. A second limit pin is provided, and the top and bottom ends of the other side of the second sliding part are respectively provided with a second top limit groove and a second bottom limit groove matched with the second limit pin; when the first reversing gear is meshed with the driving gear, the first limit pin is inserted into the first limit bottom groove and the first limit rod is close to the upper side of the first connecting shaft or in contact with it, and the second limit pin is inserted into the second top limit groove and the second limit rod is close to the lower side of the second connecting shaft or in contact with it; when the second reversing gear is meshed with the driving gear; the first limit pin is inserted into the first top limit groove and the first limit rod is close to the lower side of the first connecting shaft or in contact with it, and the second limit pin is inserted into the second bottom limit groove, and the second limit rod is close to the upper side of the second connecting shaft or in contact with it.

6. The 3D printing wire material regeneration device according to claim 5, characterized in that: The first and second limiting rods are respectively provided with first and second arc grooves matching the outer diameters of the first and second connecting shafts at the contact points between the first and second limiting rods and the first and second connecting shafts.

7. The 3D printing wire material regeneration device according to claim 2, characterized in that: The outer circumferences of the first driven gear and the second driven gear are both provided with grooves for limiting the wire along the circumferential direction.

8. The 3D printing wire material regeneration device according to claim 2, characterized in that: A winding mechanism for winding the wire is provided at one end of the mounting frame, and the winding mechanism includes a first bevel gear, a second bevel gear and a winding disk, the first bevel gear is coaxially arranged with the second driven gear, the second bevel gear is rotatably connected to one end of the mounting frame close to the second driven gear and meshes with the first bevel gear, a rotating shaft is provided outside the second bevel gear, and the winding disk is sleeved outside the rotating shaft.

9. The 3D printing wire material regeneration device according to claim 1, characterized in that: The heating assembly includes a support seat, a heating block and a heating rod. The support seat is fixedly connected to the base plate, the heating block is arranged on the top of the support seat, the heating rod is arranged in the heating block, and the heating block is provided with through holes along the conveying direction of the first conveying wheel and the second conveying wheel for the wire to pass through the heating block.

10. The 3D printing wire material regeneration device according to claim 1, characterized in that: The mounting frame includes a vertical mounting seat and a detachable mounting cover arranged on the vertical surface of the mounting seat, the first conveying wheel, the second conveying wheel and the power mechanism are all arranged between the mounting seat and the mounting cover, and the mounting seat and / or the mounting cover are provided with reinforcing ribs.

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