Wire moving mechanism, feeding device and three-dimensional forming equipment

Abstract

The utility model discloses a silk material moving mechanism, a feeding device and three-dimensional forming equipment, which are mainly characterized in that extruders corresponding to a plurality of trays are combined into a whole, so that the structure is simplified, and the control difficulty is reduced. According to the main technical scheme, the silk material moving mechanism comprises a switching wheel assembly, and the position of the switching wheel assembly at least comprises a first switching position and a second switching position; the power assembly is used for providing power for movement of the silk materials; when the switching wheel assembly is located at the first switching position, the switching wheel assembly is matched with the power assembly to move the silk material corresponding to the first switching position; and when the switching wheel assembly is located at the second switching position, the switching wheel assembly is matched with the power assembly to move the silk material corresponding to the second switching position. The silk material moving device is mainly used for moving silk materials.

Description

Technical Field

[0001] The utility model relates to the technical field of 3D printing, in particular to a wire material moving mechanism, a feeding device and a three-dimensional molding device. Background Art

[0002] In an FDM printer, the filament is wound on a reel and passed through an extruder before being inserted into the print head. During the printing process, the extruder continues to deliver the filament, the print head melts the filament, and then sprays it according to the preset contour of the model to form a layer of the model. Then the spraying is repeated on the formed model, and three-dimensional forming is achieved by stacking layer by layer.

[0003] Some printers are connected to multiple trays at the same time, and can automatically change materials during printing. For example, when printing in color, the transmission of different color filaments on different trays can be switched according to the color of the model. Alternatively, the filament can be refilled when it is broken on the tray. In the prior art, the extruders corresponding to the multiple trays are independent of each other, and the multiple extruders occupy a large space, resulting in redundant equipment structure, and the extruders need to be controlled separately, which is difficult to control. Utility Model Content

[0004] In view of this, in order to solve at least one of the aforementioned technical problems, the utility model provides a wire moving mechanism, a feeding device and a three-dimensional molding equipment.

[0005] In order to achieve the above purpose, the utility model mainly provides the following technical solutions:

[0006] On the one hand, the utility model provides a wire material moving mechanism, comprising:

[0007] A switching wheel assembly, wherein the position of the switching wheel assembly includes at least a first switching position and a second switching position, and the first switching position and the second switching position correspond to different wire materials;

[0008] A power assembly, which is used to provide power for the movement of the wire;

[0009] When the switching wheel assembly is in the first switching position, the switching wheel assembly cooperates with the power assembly to move the wire corresponding to the first switching position;

[0010] When the switching wheel assembly is in the second switching position, the switching wheel assembly cooperates with the power assembly to move the wire material corresponding to the second switching position.

[0011] On the other hand, the utility model also provides another wire material moving mechanism, comprising:

[0012] A switching wheel assembly, wherein the position of the switching wheel assembly includes at least one switching position, the switching position corresponds to the wire material, the switching position includes a first switching position, and the first switching position includes a first feeding position and a first withdrawing position;

[0013] A power assembly, which is used to provide power for the movement of the wire;

[0014] When the switching wheel assembly is at the first feeding position, the switching wheel assembly cooperates with the power assembly to positively move the wire corresponding to the switching position;

[0015] When the switching wheel assembly is at the first material-returning position, the switching wheel assembly cooperates with the power assembly to reversely move the wire material corresponding to the first switching position.

[0016] On the other hand, the utility model further provides a feeding device, comprising the above-mentioned wire material moving mechanism and a device main body, wherein the wire material moving mechanism is movably connected to the device main body.

[0017] On the other hand, the utility model also provides a three-dimensional forming equipment, including the above-mentioned feeding device.

[0018] The utility model proposes a wire material moving mechanism, a feeding device and a three-dimensional molding device, which mainly simplify the structure and reduce the control difficulty by integrating the extruders corresponding to the multiple material trays into one. In the prior art, the extruders corresponding to the multiple material trays are independent of each other, and the multiple extruders occupy a large space, resulting in redundant equipment structure, and the extruders need to be controlled separately, which is difficult to control. Compared with the prior art, in the present application document, by moving the switching wheel assembly to different switching positions, it can selectively cooperate with the power assembly to move the wire materials corresponding to different switching positions. By controlling the position of the switching wheel assembly, the movement of different wire materials can be realized, and the integrated setting of the extruders corresponding to the multiple wire materials is realized, which reduces the space occupied and reduces the control difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a feeding device provided by an embodiment of the utility model at a first viewing angle;

[0020] Figure 2 A schematic structural diagram of a feeding device provided by an embodiment of the utility model at a second viewing angle;

[0021] Figure 3 for Figure 2 A partial enlarged view of the feeding device in area A shown;

[0022] Figure 4 A partial structural exploded schematic diagram of a feeding device provided in an embodiment of the utility model;

[0023] Figure 5 for Figure 4 A partial enlarged view of the feeding device in area B is shown;

[0024] Figure 6A schematic structural diagram of a first triggering part, a second triggering part and a rotating disk provided by an embodiment of the utility model at a first viewing angle;

[0025] Figure 7 A schematic diagram of the structure of a first triggering part, a second triggering part and a rotating disk at a second viewing angle provided by an embodiment of the utility model;

[0026] Figure 8 A schematic diagram of the structure of a first triggering part, a second triggering part and a turntable at a third viewing angle provided by an embodiment of the utility model;

[0027] Fig. 9 A schematic diagram of the structure of a first triggering part, a second triggering part and a rotating disk at a fourth viewing angle provided by an embodiment of the utility model;

[0028] Fig.10 A schematic diagram of the structure of a feeding device provided by an embodiment of the utility model in a first state;

[0029] Fig.11 for Fig.10 A partial enlarged view of the feeding device in area C shown;

[0030] Fig.12 A schematic structural diagram of a feeding device provided by an embodiment of the utility model in a second state;

[0031] Fig.13 for Fig.12 A partial enlarged view of the feeding device in area D is shown;

[0032] Fig.14 A schematic diagram of the structure of a feeding device provided by an embodiment of the utility model in a third state;

[0033] Fig.15 for Fig.14 A partial enlarged view of the feeding device in area E is shown;

[0034] Fig.16 A schematic diagram of the structure of a feeding device provided by an embodiment of the utility model in a fourth state;

[0035] Fig.17 for Fig.16 The feeding device shown is a partial enlarged view of the F area;

[0036] Fig.18 A partial structural schematic diagram of a feeding device provided in an embodiment of the utility model;

[0037] Fig.19 for Fig.18 A partial enlarged view of the feeding device in the G area shown;

[0038] Fig. 20 A schematic structural diagram of an action member provided by an embodiment of the utility model at a first viewing angle;

[0039] Fig.21 A schematic structural diagram of an actuating member provided by an embodiment of the utility model at a second viewing angle;

[0040] Fig. 22 A schematic diagram of an exploded structure of a partial structure of an action member provided by an embodiment of the utility model at a first viewing angle;

[0041] Fig.23 A schematic diagram of an exploded structure of a partial structure of an action member provided by an embodiment of the utility model at a second viewing angle;

[0042] Fig.24 A schematic diagram of an exploded structure of a first transmission wheel provided in an embodiment of the utility model;

[0043] Fig.25 A schematic structural diagram of a first transmission wheel provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0044] In order to further explain the technical means and effects adopted by the utility model to achieve the predetermined utility model purpose, the following is a detailed description of the specific implementation, structure, characteristics and effects of the wire moving mechanism proposed by the utility model in combination with the accompanying drawings and preferred embodiments. For the convenience of description, the light emitted by the wire moving mechanism is described in the form of light.

[0045] On the one hand, if Figure 1-5 As shown, the embodiment of the utility model provides a wire material moving mechanism, comprising:

[0046] A switching wheel assembly 100, wherein the positions of the switching wheel assembly 100 include at least a first switching position and a second switching position, and the first switching position and the second switching position correspond to different wire materials 10;

[0047] A power assembly 200, the power assembly 200 is used to provide power for the movement of the wire 10;

[0048] When the switch wheel assembly 100 is in the first switch position, the switch wheel assembly 100 cooperates with the power assembly 200 to move the wire 10 corresponding to the first switch position;

[0049] When the switch wheel assembly 100 is in the second switch position, the switch wheel assembly 100 cooperates with the power assembly 200 to move the wire 10 corresponding to the second switch position.

[0050] The wire 10 can be wound on the material tray 20. The material tray 20 may include a winding shaft and two end plates. The two end plates are arranged in parallel at both ends of the winding shaft. The wire 10 is wound on the winding shaft, and the end plates are used to limit the wire 10 between the end plates. The switching wheel assembly 100 and the power assembly 200 cooperate to move the wire 10. The wire 10 can be moved by directly contacting the wire 10. For example, the switching wheel assembly 100 and the power assembly 200 cooperate to extrude the wire 10. The movement can be toward the direction of the print head to achieve the feeding of the wire 10, or it can be moved away from the print head to achieve the withdrawal of the wire 10. Alternatively, the switching wheel assembly 100 and the power assembly 200 cooperate to directly or indirectly drive the material tray 20 to rotate, and then through the rewinding of the material tray 20, the wire 20 can be rewound onto the material tray 20, and the withdrawal can also be achieved. The material withdrawal can be achieved by rewinding the material tray 20, or by extruding and moving the wire 10, or by rewinding the wire 10 while extruding and withdrawing the wire 10. Hereinafter, the implementation of extrusion and rewinding the material tray 20 will be described in detail in terms of structure.

[0051] The switching wheel assembly 100 includes two or more switching positions, and the movement of the switching wheel assembly 100 between different switching positions can be achieved by rotation, that is, different switching positions are different rotation positions of the switching wheel assembly 100. Alternatively, it can also be achieved by linear movement. In some embodiments, the wire material moving mechanism includes a first power member, which is connected to the switching wheel assembly 100 and is used to drive the switching wheel assembly 100 to rotate or move linearly to move between different switching positions. The first switching position and the second switching position can be any two of the multiple switching positions of the switching wheel assembly 100. There is a corresponding relationship between the material tray 20 or the wire material 10 and the switching position. When the switching wheel assembly 100 is in one of the multiple switching positions, the switching wheel assembly 100 will be able to cooperate with the power assembly 200 to move the wire material 10 on the material tray 20 corresponding to the switching position where the switching wheel assembly 100 is located. In some embodiments, the wire material moving mechanism includes a second power member, which is connected to the power assembly 200 and is used to drive the power assembly 200 to rotate, and then the aforementioned extrusion movement or driving the material tray 20 to rotate can be performed.

[0052] In an optional embodiment, the switching wheel assembly 100 includes a switching shaft 110 and at least two switching members, at least two actuating members are connected to the switching shaft 110, and the switching members correspond to the material tray 20 or the wire material 10. When the switching wheel assembly 100 is in the first switching position, at least one of the two switching members will cooperate with the power assembly 200 to extrude the wire material 10 and / or transmit power to the material tray 20. When the switching wheel assembly 100 is in the second switching position, at least another of the two switching members will cooperate with the power assembly 200. That is, when the switching wheel assembly 100 is in different switching positions, corresponding different switching members cooperate with the power assembly 200, and in the switching position, only a single switching member cooperates with the power assembly 200.

[0053] The movement of different filaments 10 can be achieved by controlling the single switch wheel assembly 100 to rotate to different switch positions, which greatly reduces the complexity of controlling multiple extruders individually. In addition, the integrated type of multiple extruders only requires the installation of the switch wheel assembly 100 and the power assembly 200, which is convenient to install and avoids errors in the positions of different extruders.

[0054] The embodiments of the utility model propose a wire material moving mechanism, a feeding device and a three-dimensional molding device, which mainly simplify the structure and reduce the control difficulty by integrating the extruders corresponding to the multiple material trays into one. In the prior art, the extruders corresponding to the multiple material trays are independent of each other, and the multiple extruders occupy a large space, resulting in redundant equipment structure, and the extruders need to be controlled separately, which is difficult to control. Compared with the prior art, in the present application document, by moving the switching wheel assembly to different switching positions, it can selectively cooperate with the power assembly to move the wire materials corresponding to different switching positions. By controlling the position of the switching wheel assembly, the movement of different wire materials can be realized, and the integrated setting of the extruders corresponding to the multiple wire materials is realized, which reduces the space occupied and reduces the control difficulty.

[0055] On the other hand, the embodiment of the utility model also provides another wire material moving mechanism, including: a switching wheel assembly 100, the position of the switching wheel assembly 100 includes at least one switching position, the switching position corresponds to the wire material 10, the switching position includes a first switching position, and the first switching position includes a first feeding position and a first withdrawing position;

[0056] A power assembly 200, the power assembly 200 is used to provide power for the movement of the wire 10;

[0057] When the switching wheel assembly 100 is at the first feeding position, the switching wheel assembly 100 cooperates with the power assembly 200 to move the wire 10 corresponding to the switching position in a positive direction;

[0058] When the switching wheel assembly 100 is at the first material-returning position, the switching wheel assembly 100 cooperates with the power assembly 200 to reversely move the wire 10 corresponding to the first switching position.

[0059] The switching position may be a single position, that is, only including the first switching position, and a single wire 10 may be moved forward and backward, or the switching position may be multiple, and multiple wires 10 may be moved forward and backward. The forward movement may be to move the wire 10 toward one side of the print head to achieve the feeding of the wire 10, and the reverse movement may be to extract the wire 10 from the print head to achieve the withdrawal of the wire 10. That is, the switching wheel assembly 100 moves between the feeding position and the withdrawal position under the same switching position, and the feeding and withdrawal operations of the same wire 10 may be performed. The movement of the switching wheel assembly 100 between the feeding position and the withdrawal position may be rotation or linear movement. In the embodiment in which the position of the above-mentioned switching wheel assembly 100 includes the first switching position and the second switching position, the first switching position further includes the first feeding position and the first withdrawal position, and when the switching wheel assembly 100 is in the first feeding position, the wire 10 corresponding to the first switching position may be fed, and when it is in the first withdrawal position, the wire 10 corresponding to the first switching position may be withdrawn. The second switching position further includes a second feeding position and a second unloading position. When the switching wheel assembly 100 is in the second feeding position, the wire material 10 corresponding to the second switching position can be fed. When in the second unloading position, the wire material 10 corresponding to the second switching position can be unloaded.

[0060] The above-mentioned material withdrawal can be to only drive the material tray 20 to rewind, or to extrude the wire 10 and drive the material tray 20 at the same time. By moving the switching wheel assembly to the feeding position and the material withdrawal position corresponding to the same switching position, the same wire 10 can be fed and withdrawn. The withdrawal of the wire 10 is not limited to extrusion withdrawal, but is rewound and withdrawn through the material tray 20, so as to avoid the accumulation of the wire 10 during withdrawal, and to avoid the wire 10 from drooping and knotting.

[0061] The following will be combined with more specific embodiments to explain the driving of the material tray 20 at the material return position. Unless otherwise specified, each embodiment can be used in the embodiment in which the position of the switching wheel assembly 100 includes at least the first switching position and the second switching position, and can also be used in the embodiment in which the switching position further includes the feeding position and the material return position.

[0062] In an optional embodiment, the wire moving mechanism also includes: a first position switch 310 and a first trigger part 320, one of the first position switch 310 and the first trigger part 320 is directly connected to the switching wheel assembly 100 or indirectly connected through other connecting parts, and when the switching wheel assembly 100 moves between the first switching position and the second switching position, the first trigger part 320 triggers the position switch 300 to generate a first position signal.

[0063] The first trigger unit 320 triggers the first position switch 310 to generate a first position signal, which is used to provide feedback on the moving position of the switching wheel assembly 100, and can indicate the change in the position of the switching wheel assembly 100, such as determining whether the switching wheel assembly 100 has reached a switching position, such as whether it has reached the first switching position or the second switching position, or whether it has reached the feeding position or the withdrawing position. This ensures that the position of the switching wheel assembly 100 is accurate, avoids the switching wheel assembly 100 from being unable to move into place due to mechanical errors or control errors, and avoids failure to move the wire 10.

[0064] The first position switch 310 and the first trigger part 320 can be in various forms. The following takes the first trigger part 320 being arranged on the switching wheel assembly 100 as an example to illustrate several optional embodiments. It can be understood that the first position switch 310 can also be arranged on the switching wheel assembly 100. In the embodiment in which the wire moving mechanism is used for the feeding device, the feeding device includes a device body 30, and the switching wheel assembly 100 is movably connected to the device body 30, such as being rotatably connected to the device body 30. The first trigger part 320 is arranged on the switching wheel assembly 100, and the first position switch 310 can be connected to the device body 30 and then fixed in position. The first position switch 310 can be a photoelectric switch, and the first trigger part 320 can be a shielding part, which is any component that can enter the detection slot of the photoelectric switch and then block the light, such as the shielding part can be a plate-shaped structure, and the shielding part moves with the switching wheel assembly 100, and then enters the detection slot of the photoelectric switch, blocks the light of the photoelectric switch, and then triggers the photoelectric switch to send a first position signal. Alternatively, the first position switch 310 may be a magnetic sensor, the first triggering part 320 may be a magnetic member, the magnetic member moves with the switching wheel assembly 100, and then enters the sensing range of the magnetic sensor, and then triggers the magnetic sensor to send a first position signal. The magnetic sensor may be a Hall sensor. Alternatively, the first position switch 310 may be a touch sensor, the first triggering part 320 may be a contact, the touch sensor may be a combination of a spring and a touch sensing chip, the contact moves with the switching wheel assembly 100, and then squeezes the spring, triggering the touch sensing chip to send a first position signal.

[0065] There are many ways to determine whether the switch wheel assembly 100 has moved to the position according to the first position signal. Taking the implementation of the first position switch 310 being a photoelectric switch and the first triggering part 320 being a shielding part as an example, two optional implementations are given:

[0066] First, the first trigger part 320 is connected to the switching wheel assembly 100, the number of the first trigger parts 320 is at least two, and at least two first trigger parts 320 extend at the same length in the moving direction of the switching wheel assembly 100, and at least two first trigger parts 320 are evenly spaced in the moving direction of the switching wheel assembly 100.

[0067] In the embodiment in which the switching wheel assembly 100 rotates to switch positions, the shielding portion has the same length in the circumferential direction of the switching wheel assembly 100. More specifically, the shielding portion may be a curved plate, and the arc length of the shielding portion extending in the circumferential direction is consistent. That is, when the switching wheel assembly 100 rotates at a constant speed, each shielding portion triggers the photoelectric switch for the same duration, and then when the switching wheel assembly 100 rotates, the first position signal of the same duration will be intermittently received. It can be that when the first position signal is generated, it is considered that the switching wheel assembly 100 has reached a switching position, or a feeding position or a withdrawing position, that is, during the movement of the switching wheel assembly 100, each first position signal corresponds to a switching position, or reaches a feeding position or a withdrawing position. More specifically, if the first switching position and the second switching position are two adjacent switching positions, when the switching wheel assembly 100 moves from the first switching position to the second switching position, when the first position signal is received, it can be determined that the switching wheel assembly 100 has reached the second switching position. If the first feeding position and the second unloading position are two adjacent positions, when the switching wheel assembly 100 moves from the first feeding position to the second unloading position, when the first position signal is received, it can be determined that the switching wheel assembly 100 reaches the second unloading position.

[0068] Alternatively, in some other embodiments, it can be determined which switching position is reached based on the number of first position signals, that is, during the movement of the switching wheel assembly 100, a corresponding number of first position signals corresponds to a switching position, or a corresponding number of first position signals corresponds to a feeding position or a withdrawing position. More specifically, if the first switching position and the second switching position are two adjacent switching positions, when the switching wheel assembly 100 moves from the first switching position to the second switching position, when a preset number, such as three or five first position signals, is received, it can be determined that the switching wheel assembly 100 has reached the second switching position. If the first feeding position and the second withdrawing position are two adjacent positions, when the switching wheel assembly 100 moves from the first feeding position to the second withdrawing position, when a preset number, such as three or five first position signals, is received, it can be determined that the switching wheel assembly 100 has reached the second withdrawing position.

[0069] In some embodiments, the wire moving mechanism also includes: a second position switch 410 and a second trigger part 420, one of the second position switch 410 and the second trigger part 420 is connected to the switching wheel assembly 100, and the position of the switching wheel assembly 100 also includes an initial position. When the switching wheel assembly 100 is in the initial position, the second trigger part 420 triggers the second position switch 410 to send a second position signal.

[0070] Whether the position of the switching wheel assembly 100 is considered to be generated by the first position signal, or the position of the switching wheel assembly 100 is determined according to the number of first position signals, it is necessary to know the initial position of the switching wheel assembly 100. For example, after the initial position, when the switching wheel assembly 100 rotates in the preset direction to obtain two first position signals, the switching wheel assembly 100 is located at the first position, the feeding position or the unloading position. If it is not known whether the switching wheel assembly 100 is in the initial position, the actual position of the switching wheel assembly 100 cannot be determined after receiving two first position signals. The second position switch 410 and the second trigger part 420 are used to cooperate with each other to send a second position signal indicating that the switching wheel assembly 100 has reached the initial position. Either one of the second position switch 410 and the second trigger part 420 can be set on the switching wheel assembly 100, which can be directly connected to the switching wheel assembly 100, or indirectly connected through an additional connector, and the other position is fixed, such as being fixed on the aforementioned device body 30. The second position switch 410 and the second triggering part 420 may be a combination of a photoelectric switch and a shielding part, a combination of a magnetic sensor and a magnetic member, or a combination of a touch sensor and a contact, which will not be described in detail here.

[0071] Secondly, the first triggering part 320 is connected to the switching wheel assembly 100 , the number of the first triggering parts 320 is at least two, and any two first triggering parts 320 have different extension lengths in the moving direction of the switching wheel assembly 100 .

[0072] The number of shielding parts can be consistent with the number of switching positions, and even the number of shielding parts can be more than the number of switching positions, so that any switching position corresponds to a shielding part of a length, or any feeding position and any withdrawing position can correspond to a shielding part of a length. If the shielding part is an arc plate, the shielding part has different lengths extending in the circumferential direction. When the switching wheel assembly 100 rotates at a constant speed, the duration of each shielding part triggering the photoelectric switch is different. The time taken from the shielding part blocking the light of the photoelectric switch to the end of the shielding is different. Then, according to different times, it can be determined which switching position the switching wheel assembly 100 has reached, or whether it has reached the feeding position or the withdrawing position, or which feeding position or withdrawing position it has reached. This embodiment allows the judgment of the switching position to be independent of the initial position, that is, the second position switch 410 and the second triggering part 420 can be set, and the switching wheel assembly 100 does not need to be rotated to the initial position. The duration of the first triggering part 320 triggering the first position switch 310 can be obtained nearby, and the position of the switching wheel assembly 100 at this time can be determined.

[0073] The extended length of the first trigger part 320 can be the physical length of the first trigger part 320, and can also be said to be the trigger strength of the first trigger part 320. For example, in an embodiment where the first position switch 310 is a magnetic sensor and the first trigger part 320 is a magnetic part, the first trigger part 320 can be a magnetic part with the same shape, but different first trigger parts 320 have different magnetic strengths, and different first trigger parts 320 trigger the first position switch 310 to send a first position signal for different durations.

[0074] In an optional implementation, Figure 3 , Figure 5 and Figure 6-9 As shown, the wire moving mechanism further includes: a turntable 500, which is coaxially arranged with the switching wheel assembly 100. One of the second position switch 410 and the second trigger part 420 is connected to the turntable 500, and one of the first position switch 310 and the first trigger part 320 is connected to the turntable 500.

[0075] The connection with the turntable 500 may be a detachable connection method such as snap-on, bonding, or may be integrally formed with the turntable 500. For example, the first trigger part 320 and the second trigger part 420 are both connected to the turntable 500 and are integrally formed with the turntable 500, so as to avoid position errors between the first trigger part 320 and the second trigger part 420 during installation and use, and ensure the accuracy of the switching position. In the embodiment where the first trigger part 320 and the second trigger part 420 are both shielding parts, and the first position switch 310 and the second position switch 410 are both photoelectric switches, the turntable 500 includes a turntable body and a panel surrounding the turntable body, and a notch is provided on the panel to form a plurality of uniform or non-uniform first trigger parts 320. The second trigger part 420 may be arranged on the turntable body and located in the area surrounded by the panel. The first position switch 310 and the second position switch 410 are arranged side by side and may be fixedly connected to the device body 30.

[0076] The turntable 500 can be set at multiple positions of the switching wheel assembly 100, and is intended to rotate with the switching wheel assembly 100. For example, it can be set at the end of the switching wheel assembly 100. In some embodiments, the switching wheel assembly 100 is rotatably connected to the device body 30, and a receiving space is provided on the device body 30. One end of the switching wheel assembly 100 extends to the receiving space, and the first position switch 310 and the second position switch 410 are provided on the side wall of the receiving space, and the turntable 500 is located in the receiving space. The receiving space can be switched separately, and the turntable 500, the first position switch 310, and the second position switch 410 can be disassembled, assembled, observed, etc.

[0077] In one embodiment, a mounting hole 501 is provided on the turntable 500, and the inner wall of the mounting hole 501 includes a limiting surface, which can be a plane or other shapes, such as a wave shape. The switching wheel assembly 100 includes a switching shaft 110, and a mounting groove 111 that matches the contour of the mounting hole 501 is provided on the switching shaft 110. The mounting hole 501 is sleeved on the switching shaft 110, and the limiting surface and the mounting groove 111 act to limit the circumferential direction of the switching shaft 110. Screw holes can also be provided on the turntable 500, and the turntable 500 is fixed by passing the top screw through the screw hole and then squeezing the switching shaft 110. The limiting surface of the turntable 500 abuts against the surface of the mounting groove 111, so that the circumferential relative position of the turntable 500 and the switching shaft 110 is accurate and will not shift during use.

[0078] In an optional embodiment, the position of the switching wheel assembly 100 includes at least a first switching position and a second switching position, such as Figure 10-19As shown, at least two extrusion grooves 201 are provided on the power assembly 200, and the switching wheel assembly 100 cooperates with the extrusion grooves 201 to extrude the wire material 10 to move the wire material 10. In the embodiment where the switching position can be a single one or multiple ones, and the switching position further includes a feeding position and a withdrawing position, the power assembly 200 is provided with extrusion grooves 201, and the number of the extrusion grooves 201 is consistent with the number of the switching positions. In other words, the extrusion grooves 201 correspond to the wire material 10.

[0079] The switching wheel assembly 100 cooperates with the power assembly 200 to move the filament 10, which can be extruded. The movement can be to move toward the print head, which can realize the feeding of the filament 10, or to move the filament 10 away from the print head, which can realize the withdrawal of the filament 10. For example, in an embodiment in which the switching wheel assembly 100 includes a switching shaft 110 and at least two switching members, the switching members cooperate with the power assembly 200 to extrude the filament 10 and / or transmit power to the material tray 20. In a more specific embodiment, the switching member includes a support body 120 and an action wheel 140, which is rotatably connected to the support body 120, and the action wheel 140 is used to cooperate with the extrusion groove 201 of the power assembly 200 to extrude the filament 10. The power component 200 includes an axis, and the power component 200 is used to rotate around the axis to drive the wire 10 to move. The extrusion groove 201 limits the wire 10 at least in the axial direction of the power component 200, limiting the axial position of the wire 10 in the power component 200, so that the wire 10 is only stably transmitted in the direction along the extrusion groove 201, and will not swing or bend along the axial direction of the power component 200, thereby ensuring the stable transmission of the wire 10 and avoiding inaccurate feeding amount caused by bending of the wire 10.

[0080] In one embodiment, if Fig.19 As shown, a wire through hole 31 is provided on the device body 30, and the extrusion groove 201 is provided corresponding to the wire through hole 31. After the wire 10 passes through the action wheel 140 and the power component 200, it is led out from the wire through hole 31, thereby further ensuring the stable transmission of the wire 10.

[0081] The extrusion groove 201 may be arranged around the power component 200 or the support body 120, that is, the extrusion groove 201 is an integrated groove that passes through the circumference of the power component 200; or, in an optional embodiment, there are multiple extrusion grooves 201, and the multiple extrusion grooves 201 are evenly arranged around the circumference of the power component 200 or the support body 120. The multiple extrusion grooves 201 may be closely adjacent to each other or spaced at a small distance, so that the surface of the support body 120 presents circumferentially extending tooth-like depressions, which can increase the friction between the extrusion grooves 201 and the wire material 10 to avoid slipping and losing steps.

[0082] In an optional embodiment, the inner wall of the extrusion groove 201 includes a bottom wall 2011 and two side walls 2012, the two side walls 2012 are arranged opposite to each other and are respectively connected to the bottom wall 2011, the bottom wall 2011 and the two side walls 2012 enclose the extrusion groove 201, the distance between the two side walls 2012 increases in the direction away from the bottom wall 2011, and the side walls 2012 are used to contact the wire 10. Wires 10 of different thicknesses can abut against different positions of the side walls 2012, thereby realizing that the extrusion groove 201 can adapt to wires 10 of different thicknesses, thereby increasing the versatility of the extrusion groove 201. Alternatively, in another embodiment, the inner wall of the extrusion groove 201 includes an arc-shaped inner wall, the inner diameter of the arc-shaped inner wall can be slightly larger than the wire 10, so that the wire 10 can be limited within a certain range of movement, and convenient processing can be realized.

[0083] In an optional implementation, the power assembly 200 includes a driving shaft 210 and a power wheel 220 , the power wheel 220 is connected to the driving shaft 210 , and the extrusion groove 201 is provided on the power wheel 220 .

[0084] For the embodiment in which the position of the switching wheel assembly 100 includes at least the first switching position and the second switching position, there are at least two power wheels 220; for the embodiment in which the switching position can be a single one or more, and the switching position further includes a feeding position and a withdrawing position, the number of power wheels 220 is consistent with the number of switching positions. In other words, the power wheel 220 corresponds to the wire material 10. The power wheel 220 can be a metal wheel with a smooth surface and an extrusion groove 201 processed. A rough friction surface can be processed on the inner wall of the extrusion groove 201 to avoid slipping with the wire material 10. The outer diameter of the active shaft 210 is smaller than the outer diameter of the power wheel 220, so as to reduce the overall weight of the power assembly 200. In addition, the power wheel 220 and the active shaft 210 can be fastened with bolts, and the power wheel 220 can be replaced.

[0085] In another embodiment, the power assembly 200 may include a driving shaft 210, a power wheel 220 and an operating sleeve 230. The power wheel 220 and the operating sleeve 230 are correspondingly sleeved on the driving shaft 210, and an extrusion groove 201 is formed between the power wheel 220 and the operating sleeve 230. The operating sleeve 230 is used to interact with the switching wheel assembly 100 to drive the material tray 20 to rotate through the switching wheel assembly 100. The power wheel 220 and the operating sleeve 230 are arranged with a certain gap, and the extrusion groove 201 can be formed by the edges of the opposite sides of the power wheel 220 and the operating sleeve 230 being enclosed together with the driving shaft 210, so that there is no need to groove the power wheel 220, which is convenient for processing, and the groove width of the extrusion groove 201 can be adjusted as needed.

[0086] In an optional embodiment, the wire material moving mechanism further includes: a tray action member 600, the tray action member 600 is used to connect the tray 20, and the tray 20 is connected to the wire material 10. The switching wheel assembly 100 is connected to the power assembly 200 and the tray action member 600 to rewind the wire material 10 by driving the tray 20 to rotate.

[0087] For the embodiment in which the position of the switching wheel assembly 100 includes at least the first switching position and the second switching position, there are at least two tray action members 600, which are correspondingly abutted with the tray 20; for the embodiment in which the switching position can be a single one or more, and the switching position further includes the feeding position and the unloading position, the number of the tray action members 600 is consistent with the number of the switching positions. In other words, the tray action member 600 corresponds to the tray 20. As in the aforementioned embodiment, the switching wheel assembly 100 can cooperate with the power assembly 200 to indirectly drive the tray 20 to rotate, and then through the rewinding of the tray 20, the wire material 20 can be rewound to the tray 20 to realize the unloading. The tray action member 600 is used to cooperate with the switching wheel assembly 100 and abut against the end plate of the tray 20, and then through the rotation of the tray action member 600, the tray 20 is driven to rewind the wire material 10. This process can realize the unloading of the wire material 10, and during the feeding process, the switching wheel assembly 100 needs to be separated from the power assembly 200.

[0088] The following is a detailed description in conjunction with a specific implementation. The switching wheel assembly 100 includes a switching shaft 110 and at least two switching members, the switching member includes a support body 120 and an action wheel 140, the support body 120 is connected to the switching shaft 110, the action wheel 140 is rotatably connected to the support body 120, and the action wheel 140 is used to cooperate with the extrusion groove 201 of the power assembly 200 to extrude the wire material 10. The switching wheel assembly 100 also includes at least two transmission wheel assemblies 130, and the transmission wheel assembly 130 is connected to the support body 110. When the switching wheel assembly 100 is in the first switching position, only one of feeding and unloading can be performed, or, the following takes the first switching position further including the first feeding position and the first unloading position, and the switching wheel assembly 100 can feed when it is in the first feeding position, and can unload when it is in the first unloading position as an example. A single action member includes two action wheels 140. As Figure 14-15As shown, when the switching wheel assembly 130 is in the first material-returning position, the transmission wheel assembly 130 is connected to the power assembly 200 and the material tray actuator 600 corresponding to the first switching position. When the power assembly 200 rotates, the power is transmitted to the material tray actuator 600 through the transmission wheel assembly 130, and then the material tray 20 corresponding to the first switching position is driven to rotate, thereby rewinding the wire 10. One of the two action wheels 140 cooperates with the power assembly 200 to extrude the wire 10. When the power assembly 200 rotates, the wire 10 is extruded and retracted synchronously. Alternatively, in some embodiments, the action wheel 140 may not extrude the wire 10, and the wire 10 can be allowed to pass between the action wheel 140 and the power assembly 200. As shown in FIG. Figure 10-12 As shown, when the switching wheel assembly 130 is in the first feeding position, the transmission wheel assembly 130 is separated from the power assembly 200, and when the power assembly 200 rotates, it will not transmit power to the tray action member 600. The other of the two action wheels 140 cooperates with the power assembly 200 to extrude the wire 10, and when the power assembly 200 rotates, the wire 10 can be fed. When the switching wheel assembly 130 is in the second switching position, as shown in FIG. Figure 16-17 As shown, the transmission wheel assembly 130 and the action wheel 140 corresponding to the first switching position will not be in contact with the power assembly 200 to stop the movement of the wire 10.

[0089] In an optional embodiment, the transmission wheel assembly 130 includes a first transmission wheel 131, a second transmission wheel 132 and an intermediate transmission wheel 133, the first transmission wheel 131 and the second transmission wheel 132 are respectively connected to the intermediate transmission wheel 133, and the first transmission wheel 131 is used to contact the power assembly 200. The first transmission wheel 131 and the power assembly 200 are mutually gear-engaged; or one of the surfaces where the first transmission wheel 131 and the power assembly 200 contact each other is a flexible surface, and the other of the surfaces where the first transmission wheel 131 and the power assembly 200 contact each other is a tooth surface.

[0090] When the switching wheel assembly 130 is in the first material withdrawal position, the first transmission wheel 131 and the power assembly 200 are in contact with each other, and the second transmission wheel 132 is in contact with the tray action member 600 to perform power transmission. The first transmission wheel 131 and the power assembly 200 can be connected by gear meshing and transmitted by meshing. If the first transmission wheel 131 is a gear, the power assembly 200 includes an active shaft 210 and an action gear, the action gear is connected to the active shaft 210, and the action gear is meshed and connected to the first transmission wheel 131. Alternatively, the first transmission wheel 131 and the power assembly 200 are abutted against the tooth surface by a flexible surface, which, on the one hand, ensures the transmission strength and avoids slipping, and on the other hand, reduces the processing difficulty of the tooth surface bite, reduces the impact noise caused by the meshing, and avoids the slipping phenomenon that occurs during the process from disengagement to meshing. The first transmission wheel 131 may be a gear, the power assembly 200 includes a driving shaft 210 and an operating sleeve 230, the operating sleeve 230 is sleeved on the driving shaft 210, and the operating sleeve 230 is flexible, such as a rubber sleeve. Alternatively, the power assembly 200 includes a driving shaft 210 and an operating gear, the operating gear is connected to the driving shaft 210, the first transmission wheel 131 includes a flexible sleeve 1311 located at the outermost side, and the flexible sleeve 1311 may be a rubber sleeve. Similarly, when the first transmission wheel 131 includes the flexible sleeve 1311, the intermediate transmission wheel 133 may be a gear, and the second transmission wheel 132 may have the same flexible sleeve 1311 as the first transmission wheel 131.

[0091] In some embodiments, the teeth of the working gear of the power assembly 200 are made of a flexible material, and / or the first transmission wheel 131 is a gear, and the teeth of the first transmission wheel 131 are made of a flexible material. The flexible material may be rubber, or a flexible coating may be covered on the teeth of the working gear and / or the teeth of the first transmission wheel 131, which can avoid rigid collisions caused by meshing between teeth and reduce abnormal noises.

[0092] In an optional implementation, Figure 24-25 As shown, the first transmission wheel 131 includes a flexible sleeve 1311 , a support member 1312 and at least one bearing 1313 . The support member 1312 is wrapped around the outer circumference of the bearing 1313 , and the flexible sleeve 1311 is wrapped around the outer circumference of the support member 1312 .

[0093] The bearing 1313 can be a single one or two, and the two bearings 1313 are axially arranged in parallel in the support member 1312. The support member 1312 is a cylindrical structure, which is used to support the flexible sleeve 1311. The position between the flexible sleeve 1311 and the support member 1312 is fixed, and at least one first limiting portion 1314 can be provided on the support member 1312, and at least one second limiting portion 1315 can be provided on the flexible sleeve 1311. The first limiting portion 1314 and the second limiting portion 1315 interact with each other so that the support member 1312 and the flexible sleeve 1311 are mutually limited in the axial direction and / or circumferential direction of the support member 1312. The support member 1312 can be made of plastic material, the first limiting portion 1314 can be a rubber block formed on the support member 1312, the flexible sleeve 1311 can be a rubber sleeve, and the second limiting portion 1315 is a groove provided on the rubber sleeve that is adapted to the rubber block. The rubber sleeve can be fitted to the outer periphery of the support member 1312 by means of the elasticity of the rubber sleeve, and the rubber block can be embedded in the groove to achieve the position limiting of the rubber sleeve and the support member 1312, and the rubber sleeve can be easily disassembled and replaced.

[0094] On the other hand, an embodiment of the utility model further provides a feeding device, comprising any one of the above-mentioned wire moving mechanisms, and a device body 30 , wherein the wire moving mechanism is movably connected to the device body 30 .

[0095] The switching wheel assembly 100, the power assembly 200 and the tray action member 600 in the aforementioned embodiment are rotatably connected to the device body 30, and the device body 30 also has a tray space, and the tray 20 is located in the tray space and abuts against the tray action member 600. The device body 30 can protect the tray 30. The feeding device includes any of the aforementioned wire moving mechanisms, including the advantages of any of the aforementioned wire moving mechanisms, which will not be repeated here.

[0096] On the other hand, the embodiment of the utility model further provides a three-dimensional molding device, including the above-mentioned feeding device and a device body, and the device body is used to print a 3D model. The feeding device can be connected to the device body or can be set separately from the device body, and the feeding device is used to feed the device body. The three-dimensional molding device includes the above-mentioned feeding device, including the advantages of the above-mentioned feeding device, which will not be repeated here.

[0097] The utility model also provides the following implementation modes:

[0098] Reference numeral 1. A wire material moving mechanism, comprising:

[0099] A switching wheel assembly 100, wherein the positions of the switching wheel assembly 100 include at least a first switching position and a second switching position, wherein the first switching position and the second switching position correspond to different wires 10; a power assembly 200, wherein the power assembly 200 is used to provide power for the movement of the wire 10; when the switching wheel assembly 100 is in the first switching position, the switching wheel assembly 100 cooperates with the power assembly 200 to move the wire 10 corresponding to the first switching position;

[0100] When the switch wheel assembly 100 is in the second switch position, the switch wheel assembly 100 cooperates with the power assembly 200 to move the wire 10 corresponding to the second switch position.

[0101] Reference numeral 2, according to the wire material moving mechanism of reference numeral 1, wherein the wire material moving mechanism further comprises:

[0102] The first position switch 310 and the first trigger part 320, one of which is connected to the switching wheel assembly 100, when the switching wheel assembly 100 moves between the first switching position and the second switching position, the first trigger part 320 triggers the position switch 300 to generate a first position signal.

[0103] Reference numeral 3, a wire material moving mechanism according to reference numeral 2, wherein:

[0104] The first trigger part 320 is connected to the switching wheel assembly 100, the number of the first trigger parts 320 is at least two, and the at least two first trigger parts 320 have the same extension length in the moving direction of the switching wheel assembly 100, and at least two first trigger parts 320 are evenly spaced apart in the moving direction of the switching wheel assembly 100; or, the first trigger part 320 is connected to the switching wheel assembly 100, the number of the first trigger parts 320 is at least two, and the extension lengths of any two first trigger parts 320 in the moving direction of the switching wheel assembly 100 are different.

[0105] Label 4, a wire moving mechanism according to label 2, wherein the first position switch 310 includes a photoelectric switch, and the first trigger part 320 includes a shielding part; and / or, the first position switch 310 includes a magnetic sensor, and the first trigger part 320 includes a magnetic member; and / or, the first position switch 310 includes a touch sensor, and the first trigger part 320 includes a contact.

[0106] Reference numeral 5. The wire material moving mechanism according to reference numeral 2, wherein the wire material moving mechanism further comprises:

[0107] The second position switch 410 and the second trigger part 420, one of the second position switch 410 and the second trigger part 420 is connected to the switching wheel assembly 100, and the position of the switching wheel assembly 100 also includes an initial position. When the switching wheel assembly 100 is in the initial position, the second trigger part 420 triggers the second position switch 410 to send a second position signal.

[0108] Label 6, a wire moving mechanism according to label 5, wherein the wire moving mechanism further comprises: a turntable 500, which is coaxially arranged with the switching wheel assembly 100; one of the second position switch 410 and the second trigger part 420 is connected to the turntable 500, and one of the first position switch 310 and the first trigger part 320 is connected to the turntable 500.

[0109] Label 7, a wire moving mechanism according to label 6, wherein a mounting hole 501 is provided on the turntable 500, the inner wall of the mounting hole 501 includes a limiting surface, the switching wheel assembly 100 includes a switching shaft 110, the switching shaft 110 is provided with a mounting groove 111 adapted to the contour of the mounting hole 501, the turntable 500 is sleeved on the switching shaft 110 through the mounting hole 501, and the limiting surface acts on the mounting groove 111 to limit the circumferential limit of the switching shaft 110.

[0110] Label 8 , according to the wire material moving mechanism of label 1 , wherein at least two extrusion grooves 201 are opened on the power component 200 , and the switching wheel component 100 cooperates with the extrusion grooves 201 to extrude the wire material 10 to move the wire material 10 .

[0111] Label 9, a wire moving mechanism according to label 8, wherein the extrusion groove 201 surrounds the power assembly 200; or, there are multiple extrusion grooves 201, and the multiple extrusion grooves 201 are arranged around the circumference of the power assembly 200.

[0112] Reference numeral 10, a wire material moving mechanism according to reference numeral 8, wherein the inner wall of the extrusion groove 201 comprises a bottom wall 2011 and two side walls 2012, the two side walls 2012 are arranged opposite to each other and are respectively connected to the bottom wall 2011, the bottom wall 2011 and the two side walls 2012 enclose the extrusion groove 201, the distance between the two side walls 2012 increases in a direction away from the bottom wall 2011, and the side walls 2012 are used to contact the wire material 10;

[0113] Alternatively, the inner wall of the extrusion groove 201 includes an arc-shaped inner wall.

[0114] Label 11, a wire moving mechanism according to label 8, wherein the power assembly 200 includes a driving shaft 210 and at least two power wheels 220, the power wheels 220 are connected to the driving shaft 210, and the extrusion groove 201 is opened on the power wheels 220; or, the power assembly 200 includes a driving shaft 210, at least two power wheels 220 and at least two working sleeves 230, the power wheels 220 and the working sleeves 230 are correspondingly sleeved on the driving shaft 210, and the extrusion groove 201 is formed between the power wheels 220 and the working sleeves 230.

[0115] Reference numeral 12. The wire moving mechanism according to reference numeral 1, wherein the wire moving mechanism further comprises:

[0116] At least two tray action members 600, the tray action members 600 are used to connect the tray 20;

[0117] The switching wheel assembly 100 is connected to the power assembly 200 , and the switching wheel assembly 100 is also connected to the material tray actuator 600 to rewind the wire material 10 by driving the material tray 20 to rotate.

[0118] Reference numeral 13, a wire material moving mechanism according to reference numeral 12, wherein the switching wheel assembly 100 comprises a switching shaft 110, at least two supporting bodies 120 and at least two transmission wheel assemblies 130, the supporting bodies 120 are connected to the switching shaft 110, and the transmission wheel assembly 130 is connected to the supporting bodies 110; when the switching wheel assembly 130 is in a first switching position, at least one of the two transmission wheel assemblies 130 is connected to the power assembly 200 and the material tray acting member 600 corresponding to the first switching position, so as to drive the material tray 20 corresponding to the first switching position to rotate;

[0119] When the switching wheel assembly 130 is in the second switching position, at least another one of the two transmission wheel assemblies 130 is connected to the power assembly 200 and the tray actuator 600 corresponding to the second switching position to drive the tray 20 corresponding to the second switching position to rotate.

[0120] Reference numeral 14, a wire moving mechanism according to reference numeral 13, wherein the transmission wheel assembly 130 comprises a first transmission wheel 131, a second transmission wheel 132 and an intermediate transmission wheel 133, the first transmission wheel 131 and the second transmission wheel 132 are respectively connected to the intermediate transmission wheel 133 in transmission connection, and the first transmission wheel 131 is used to contact the power assembly 200;

[0121] The first transmission wheel 131 and the power assembly 200 are gear-engaged with each other; or one of the surfaces where the first transmission wheel 131 and the power assembly 200 contact each other is a flexible surface, and the other surface where the first transmission wheel 131 and the power assembly 200 contact each other is a tooth surface.

[0122] Label 15. A wire moving mechanism according to label 14, wherein the first transmission wheel 131 is a gear, the power assembly 200 includes a driving shaft 210 and an acting gear, the acting gear is connected to the driving shaft 210, and the acting gear is gear-engaged with the first transmission wheel 131; or, the first transmission wheel 131 is a gear, the power assembly 200 includes a driving shaft 210 and an acting sleeve 230, the acting sleeve 230 is sleeved on the driving shaft 210, and the acting sleeve 230 is flexible; or, the power assembly 200 includes a driving shaft 210 and an acting gear, the acting gear is connected to the driving shaft 210, and the first transmission wheel 131 includes a flexible sleeve 1311 located at the outermost side.

[0123] Label 16, a wire moving mechanism according to label 14, wherein the first transmission wheel 131 includes a flexible sleeve 1311, a support member 1312 and at least one bearing 1313, the support member 1312 is wrapped around the outer periphery of the bearing 1313, and the flexible sleeve 1311 is wrapped around the outer periphery of the support member 1312; at least one first limiting portion 1314 is provided on the support member 1312, and at least one second limiting portion 1315 is provided on the flexible sleeve 1311, the first limiting portion 1314 and the second limiting portion 1315 interact with each other to limit each other in the axial direction and / or circumferential direction of the support member 1312.

[0124] Reference numeral 17, a wire material moving mechanism, comprising: a switching wheel assembly 100, wherein the position of the switching wheel assembly 100 includes at least one switching position, the switching position corresponds to the wire material 10, the switching position includes a first switching position, and the first switching position includes a first feeding position and a first withdrawing position; a power assembly 200, the power assembly 200 is used to provide power for the movement of the wire material 10; when the switching wheel assembly 100 is in the first feeding position, the switching wheel assembly 100 cooperates with the power assembly 200 to positively move the wire material 10 corresponding to the first switching position;

[0125] When the switching wheel assembly 100 is at the first material-returning position, the switching wheel assembly 100 cooperates with the power assembly 200 to reversely move the wire 10 corresponding to the first switching position.

[0126] Reference numeral 18. The wire moving mechanism according to reference numeral 17, wherein the wire moving mechanism further comprises:

[0127] The first position switch 310 and the first trigger part 320, one of which is connected to the switching wheel assembly 100, when the switching wheel assembly 100 moves between the first feeding position and the first unloading position, the first trigger part 320 triggers the position switch 300 to generate a first position signal.

[0128] Label 19. A wire moving mechanism according to label 18, wherein the first trigger part 320 is connected to the switching wheel assembly 100, the number of the first trigger parts 320 is at least two, and at least two first trigger parts 320 have the same extension length in the moving direction of the switching wheel assembly 100, and at least two first trigger parts 320 are evenly spaced apart in the moving direction of the switching wheel assembly 100; or, the first trigger part 320 is connected to the switching wheel assembly 100, the number of the first trigger parts 320 is at least two, and any two first trigger parts 320 have different extension lengths in the moving direction of the switching wheel assembly 100.

[0129] Label 20, a wire moving mechanism according to label 18, wherein the first position switch 310 includes a photoelectric switch, and the first trigger part 320 includes a shielding part; and / or, the first position switch 310 includes a magnetic sensor, and the first trigger part 320 includes a magnetic member; and / or, the first position switch 310 includes a touch sensor, and the first trigger part 320 includes a contact.

[0130] Label 21, a wire moving mechanism according to label 18, wherein the wire moving mechanism further includes: a second position switch 410 and a second trigger part 420, one of the second position switch 410 and the second trigger part 420 is connected to the switching wheel assembly 100, the position of the switching wheel assembly 100 also includes an initial position, when the switching wheel assembly 100 is in the initial position, the second trigger part 420 triggers the second position switch 410 to send a second position signal.

[0131] Label 22, a wire moving mechanism according to label 21, wherein the wire moving mechanism further comprises: a turntable 500, which is coaxially arranged with the switching wheel assembly 100; one of the second position switch 410 and the second trigger part 420 is connected to the turntable 500, and one of the first position switch 310 and the first trigger part 320 is connected to the turntable 500.

[0132] Label 23, a wire moving mechanism according to label 22, wherein a mounting hole 501 is provided on the turntable 500, the inner wall of the mounting hole 501 includes a limiting surface, the switching wheel assembly 100 includes a switching shaft 110, the switching shaft 110 is provided with a mounting groove 111 that is adapted to the contour of the mounting hole 501, the turntable 500 is sleeved on the switching shaft 110 through the mounting hole 501, and the limiting surface acts on the mounting groove 111 to limit the circumferential position of the switching shaft 110.

[0133] Label 24, a wire material moving mechanism according to label 17, wherein at least one extrusion groove 201 is provided on the power component 200, and the switching wheel component 100 cooperates with the extrusion groove 201 to extrude the wire material 10 to move the wire material 10 in a forward or reverse direction.

[0134] Label 25 . The wire moving mechanism according to label 24 , wherein the extrusion groove 201 surrounds the power assembly 200 ; or, there are multiple extrusion grooves 201 , which are arranged circumferentially around the power assembly 200 .

[0135] Reference numeral 26, a wire material moving mechanism according to reference numeral 24, wherein the inner wall of the extrusion groove 201 comprises a bottom wall 2011 and two side walls 2012, the two side walls 2012 are arranged opposite to each other and are respectively connected to the bottom wall 2011, the bottom wall 2011 and the two side walls 2012 enclose the extrusion groove 201, the distance between the two side walls 2012 increases in a direction away from the bottom wall 2011, and the side walls 2012 are used to contact the wire material 10;

[0136] Alternatively, the inner wall of the extrusion groove 201 includes an arc-shaped inner wall.

[0137] Label 27. A wire moving mechanism according to label 24, wherein the power assembly 200 includes a driving shaft 210 and at least one power wheel 220, the power wheel 220 is connected to the driving shaft 210, and the extrusion groove 201 is opened on the power wheel 220; or, the power assembly 200 includes a driving shaft 210, at least one power wheel 220 and at least one working sleeve 230, the power wheel 220 and the working sleeve 230 are correspondingly sleeved on the driving shaft 210, and the extrusion groove 201 is formed between the power wheel 220 and the working sleeve 230.

[0138] Label 28, a wire material moving mechanism according to label 17, wherein the wire material moving mechanism further includes: at least one material tray actuator 600, the material tray actuator 600 is used to connect the material tray 20; when the switching wheel assembly 100 is in the first material unloading position, the switching wheel assembly 100 is connected to the power assembly 200, and the switching wheel assembly 100 is also connected to the material tray actuator 600, so as to rewind the wire material 10 by driving the material tray 20 to rotate.

[0139] Label 29, a wire moving mechanism according to label 28, wherein the switching wheel assembly 100 includes a switching shaft 110, at least two supporting bodies 120 and at least two transmission wheel assemblies 130, the supporting bodies 120 are connected to the switching shaft 110, and the transmission wheel assembly 130 is connected to the supporting bodies 110; when the switching wheel assembly 130 is in the first material unloading position, the transmission wheel assembly 130 is connected to the power assembly 200 and the material tray actuator 600 to drive the material tray 20 to rotate; when the switching wheel assembly 130 is in the first material feeding position, the transmission wheel assembly 130 is disengaged from at least one of the power assembly 200 and the material tray actuator 600.

[0140] Reference numeral 30, a wire material moving mechanism according to reference numeral 29, wherein the transmission wheel assembly 130 comprises a first transmission wheel 131, a second transmission wheel 132 and an intermediate transmission wheel 133, the first transmission wheel 131 and the second transmission wheel 132 are respectively connected to the intermediate transmission wheel 133 in transmission connection, and the first transmission wheel 131 is used to contact the power assembly 200;

[0141] The first transmission wheel 131 and the power assembly 200 are gear-engaged with each other; or one of the surfaces where the first transmission wheel 131 and the power assembly 200 contact each other is a flexible surface, and the other surface where the first transmission wheel 131 and the power assembly 200 contact each other is a tooth surface.

[0142] Label 31, according to the wire moving mechanism of label 30, wherein the first transmission wheel 131 is a gear, the power component 200 includes a driving shaft 210 and an acting gear, and the acting gear is connected to the driving shaft 210; or, the first transmission wheel 131 is a gear, the power component 200 includes a driving shaft 210 and an acting sleeve 230, the acting sleeve 230 is sleeved on the driving shaft 210, and the acting sleeve 230 is flexible; or, the power component 200 includes a driving shaft 210 and an acting gear, the acting gear is connected to the driving shaft 210, and the first transmission wheel 131 includes a flexible sleeve 1311 located at the outermost side.

[0143] Label 32, a wire moving mechanism according to label 30, wherein the first transmission wheel 131 includes a flexible sleeve 1311, a support member 1312 and at least one bearing 1313, the support member 1312 is wrapped around the outer periphery of the bearing 1313, and the flexible sleeve 1311 is wrapped around the outer periphery of the support member 1312; at least one first limiting portion 1314 is provided on the support member 1312, and at least one second limiting portion 1315 is provided on the flexible sleeve 1311, the first limiting portion 1314 and the second limiting portion 1315 interact with each other so that the support member 1312 and the flexible sleeve 1311 limit each other in the axial direction and / or circumferential direction of the support member 1312.

[0144] Label 33, a feeding device, which includes a wire moving mechanism as any one of the above labels 1-16, and a device body 30, and the wire moving mechanism is movably connected to the device body 30; or, includes a wire moving mechanism as any one of the above labels 17-32, and a device body 30, and the wire moving mechanism is movably connected to the device body 30.

[0145] Label 34, a three-dimensional molding equipment, which includes a feeding device as described above with label 33.

[0146] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A wire material moving mechanism, characterized in that: include: A switching wheel assembly, wherein the position of the switching wheel assembly includes at least a first switching position and a second switching position, wherein the first switching position and the second switching position correspond to different wire materials; A power assembly, the power assembly is used to provide power for the movement of the wire; When the switching wheel assembly is at the first switching position, the switching wheel assembly cooperates with the power assembly to move the wire material corresponding to the first switching position; When the switching wheel assembly is in the second switching position, the switching wheel assembly cooperates with the power assembly to move the wire material corresponding to the second switching position; The wire material moving mechanism also includes: a first position switch and a first triggering part, wherein one of the first position switch and the first triggering part is connected to the switching wheel assembly, and when the switching wheel assembly moves between the first switching position and the second switching position, the first triggering part triggers the first position switch to generate a first position signal; a second position switch and a second triggering unit, one of the second position switch and the second triggering unit being connected to the switching wheel assembly, the position of the switching wheel assembly further comprising an initial position, when the switching wheel assembly is in the initial position, the second triggering unit triggers the second position switch to send a second position signal; A turntable, one of the second position switch and the second trigger unit is connected to the turntable, and one of the first position switch and the first trigger unit is connected to the turntable.

2. The wire material moving mechanism according to claim 1, characterized in that: The first trigger part is connected to the switching wheel assembly, the number of the first trigger parts is at least two, and at least two of the first trigger parts have the same extension length in the moving direction of the switching wheel assembly, and at least two of the first trigger parts are evenly spaced in the moving direction of the switching wheel assembly; Alternatively, the first triggering portion is connected to the switching wheel assembly, the number of the first triggering portions is at least two, and any two of the first triggering portions have different extension lengths in the moving direction of the switching wheel assembly.

3. The wire material moving mechanism according to claim 1, characterized in that: The first position switch includes a photoelectric switch, and the first triggering portion includes a shielding portion; And / or, the first position switch includes a magnetic sensor, and the first triggering part includes a magnetic member; And / or, the first position switch includes a touch sensor, and the first triggering part includes a contact.

4. The wire material moving mechanism according to claim 1, characterized in that: The rotating disk is coaxially arranged with the switching wheel assembly.

5. The wire material moving mechanism according to claim 1, characterized in that: The turntable is provided with a mounting hole, the inner wall of the mounting hole includes a limiting surface, the switching wheel assembly includes a switching shaft, the switching shaft is provided with a mounting groove adapted to the contour of the mounting hole, the turntable is sleeved on the switching shaft through the mounting hole, and the limiting surface acts on the mounting groove to limit the circumferential direction of the switching shaft.

6. The wire material moving mechanism according to claim 1, characterized in that: At least two extrusion grooves are provided on the power assembly, and the switching wheel assembly cooperates with the extrusion grooves to extrude the wire material so as to move the wire material.

7. The wire material moving mechanism according to claim 6, characterized in that: The extrusion groove surrounds the power assembly; Alternatively, there are multiple extrusion grooves, and the multiple extrusion grooves are arranged around the circumference of the power component.

8. The wire material moving mechanism according to claim 6, characterized in that: The inner wall of the extrusion groove comprises a bottom wall and two side walls, the two side walls are arranged opposite to each other and are respectively connected to the bottom wall, the bottom wall and the two side walls enclose the extrusion groove, the distance between the two side walls increases in the direction away from the bottom wall, and the side walls are used to contact the wire material; Alternatively, the inner wall of the extrusion groove includes an arc-shaped inner wall.

9. The wire material moving mechanism according to claim 6, characterized in that: The power assembly includes a driving shaft and at least two power wheels, the power wheels are connected to the driving shaft, and the extrusion grooves are provided on the power wheels; Alternatively, the power assembly includes a driving shaft, at least two power wheels and at least two operating sleeves, the power wheels and the operating sleeves are correspondingly sleeved on the driving shaft, and the extrusion groove is formed between the power wheels and the operating sleeves.

10. The wire material moving mechanism according to claim 1, characterized in that: The wire material moving mechanism also includes: At least two tray action members, the tray action members are used to connect the trays; The switching wheel assembly is connected to the power assembly, and the switching wheel assembly is also connected to the material tray actuator to rewind the wire material by driving the material tray to rotate.

11. The wire material moving mechanism according to claim 10, characterized in that: The switching wheel assembly comprises a switching shaft, at least two supporting bodies and at least two transmission wheel assemblies, wherein the supporting body is connected to the switching shaft, and the transmission wheel assembly is connected to the supporting body; When the switching wheel assembly is in the first switching position, at least one of the two transmission wheel assemblies is connected to the power assembly and the tray actuator corresponding to the first switching position to drive the tray corresponding to the first switching position to rotate; When the switching wheel assembly is in the second switching position, at least another one of the two transmission wheel assemblies is connected to the power assembly and the material tray actuator corresponding to the second switching position to drive the material tray corresponding to the second switching position to rotate.

12. The wire material moving mechanism according to claim 11, characterized in that: The transmission wheel assembly comprises a first transmission wheel, a second transmission wheel and an intermediate transmission wheel, the first transmission wheel and the second transmission wheel are respectively connected to the intermediate transmission wheel in transmission, and the first transmission wheel is used to contact the power assembly; The first transmission wheel and the power assembly are gear-engaged with each other; or one of the surfaces of the first transmission wheel and the power assembly in contact with each other is a flexible surface, and the other of the surfaces of the first transmission wheel and the power assembly in contact with each other is a tooth surface.

13. The wire material moving mechanism according to claim 12, characterized in that: The first transmission wheel is a gear, the power assembly includes a driving shaft and an operating gear, the operating gear is connected to the driving shaft, and the operating gear is gear-engaged with the first transmission wheel; Alternatively, the first transmission wheel is a gear, the power assembly comprises a driving shaft and an operating sleeve, the operating sleeve is sleeved on the driving shaft, and the operating sleeve is flexible; Alternatively, the power assembly includes a driving shaft and an operating gear, the operating gear is connected to the driving shaft, and the first transmission wheel includes a flexible sleeve located at the outermost side.

14. The wire material moving mechanism according to claim 12, characterized in that: The first transmission wheel comprises a flexible sleeve, a support member and at least one bearing, the support member is wrapped around the outer circumference of the bearing, and the flexible sleeve is wrapped around the outer circumference of the support member; The support member is provided with at least one first limiting portion, and the flexible sleeve is provided with at least one second limiting portion, and the first limiting portion and the second limiting portion interact with each other so that the support member and the flexible sleeve are mutually limited in the axial direction and / or circumferential direction of the support member.

15. A wire material moving mechanism, characterized in that: include: A switching wheel assembly, wherein the position of the switching wheel assembly includes at least one switching position, the switching position corresponds to the wire material, the switching position includes a first switching position, and the first switching position includes a first feeding position and a first withdrawing position; A power assembly, the power assembly is used to provide power for the movement of the wire; When the switching wheel assembly is at the first feeding position, the switching wheel assembly cooperates with the power assembly to positively move the wire corresponding to the first switching position; When the switching wheel assembly is at the first material-returning position, the switching wheel assembly cooperates with the power assembly to reversely move the wire material corresponding to the first switching position; The wire material moving mechanism also includes: A first position switch and a first trigger part, one of the first position switch and the first trigger part is connected to the switching wheel assembly, and when the switching wheel assembly moves between the first feeding position and the first material withdrawing position, the first trigger part triggers the position switch to generate a first position signal; a second position switch and a second triggering unit, one of the second position switch and the second triggering unit being connected to the switching wheel assembly, the position of the switching wheel assembly further comprising an initial position, when the switching wheel assembly is in the initial position, the second triggering unit triggers the second position switch to send a second position signal; A turntable, one of the second position switch and the second trigger unit is connected to the turntable, and one of the first position switch and the first trigger unit is connected to the turntable.

16. The wire material moving mechanism according to claim 15, characterized in that: The first trigger part is connected to the switching wheel assembly, the number of the first trigger parts is at least two, and at least two of the first trigger parts have the same extension length in the moving direction of the switching wheel assembly, and at least two of the first trigger parts are evenly spaced in the moving direction of the switching wheel assembly; Alternatively, the first triggering portion is connected to the switching wheel assembly, the number of the first triggering portions is at least two, and any two of the first triggering portions have different extension lengths in the moving direction of the switching wheel assembly.

17. The wire material moving mechanism according to claim 15, characterized in that: The first position switch includes a photoelectric switch, and the first triggering portion includes a shielding portion; And / or, the first position switch includes a magnetic sensor, and the first triggering part includes a magnetic member; And / or, the first position switch includes a touch sensor, and the first triggering part includes a contact.

18. The wire material moving mechanism according to claim 15, characterized in that: The rotating disk is coaxially arranged with the switching wheel assembly.

19. The wire material moving mechanism according to claim 15, characterized in that: The turntable is provided with a mounting hole, the inner wall of the mounting hole includes a limiting surface, the switching wheel assembly includes a switching shaft, the switching shaft is provided with a mounting groove adapted to the contour of the mounting hole, the turntable is sleeved on the switching shaft through the mounting hole, and the limiting surface acts on the mounting groove to limit the circumferential direction of the switching shaft.

20. The wire material moving mechanism according to claim 15, characterized in that: At least one extrusion groove is provided on the power assembly, and the switching wheel assembly cooperates with the extrusion groove to extrude the wire material so as to move the wire material forward or reversely.

21. The wire material moving mechanism according to claim 20, characterized in that: The extrusion groove surrounds the power assembly; Alternatively, there are multiple extrusion grooves, and the multiple extrusion grooves are arranged around the circumference of the power component.

22. The wire moving mechanism according to claim 20, characterized in that: The inner wall of the extrusion groove comprises a bottom wall and two side walls, the two side walls are arranged opposite to each other and are respectively connected to the bottom wall, the bottom wall and the two side walls enclose the extrusion groove, the distance between the two side walls increases in the direction away from the bottom wall, and the side walls are used to contact the wire material; Alternatively, the inner wall of the extrusion groove includes an arc-shaped inner wall.

23. The wire material moving mechanism according to claim 20, characterized in that: The power assembly includes a driving shaft and at least one power wheel, the power wheel is connected to the driving shaft, and the extrusion groove is provided on the power wheel; Alternatively, the power assembly includes a driving shaft, at least one power wheel and at least one operating sleeve, the power wheel and the operating sleeve are correspondingly sleeved on the driving shaft, and the extrusion groove is formed between the power wheel and the operating sleeve.

24. The wire moving mechanism according to claim 15, characterized in that: The wire material moving mechanism also includes: At least one tray action member, the tray action member is used to connect the tray; When the switching wheel assembly is in the first material unloading position, the switching wheel assembly is connected to the power assembly, and the switching wheel assembly is also connected to the material tray actuator to rewind the wire material by driving the material tray to rotate.

25. The wire moving mechanism according to claim 24, characterized in that: The switching wheel assembly comprises a switching shaft, at least two supporting bodies and at least two transmission wheel assemblies, wherein the supporting body is connected to the switching shaft, and the transmission wheel assembly is connected to the supporting body; When the switching wheel assembly is in the first material-returning position, the transmission wheel assembly is connected with the power assembly and the material tray actuator to drive the material tray to rotate; When the switching wheel assembly is in the first feeding position, the transmission wheel assembly is disengaged from at least one of the power assembly and the tray actuator.

26. The wire moving mechanism according to claim 25, characterized in that: The transmission wheel assembly comprises a first transmission wheel, a second transmission wheel and an intermediate transmission wheel, the first transmission wheel and the second transmission wheel are respectively connected to the intermediate transmission wheel in transmission, and the first transmission wheel is used to contact the power assembly; The first transmission wheel and the power assembly are gear-engaged with each other; or one of the surfaces of the first transmission wheel and the power assembly in contact with each other is a flexible surface, and the other of the surfaces of the first transmission wheel and the power assembly in contact with each other is a tooth surface.

27. The wire material moving mechanism according to claim 26, characterized in that: The first transmission wheel is a gear, the power assembly includes a driving shaft and an operating gear, and the operating gear is connected to the driving shaft; Alternatively, the first transmission wheel is a gear, the power assembly comprises a driving shaft and an operating sleeve, the operating sleeve is sleeved on the driving shaft, and the operating sleeve is flexible; Alternatively, the power assembly includes a driving shaft and an operating gear, the operating gear is connected to the driving shaft, and the first transmission wheel includes a flexible sleeve located at the outermost side.

28. The wire material moving mechanism according to claim 26, characterized in that: The first transmission wheel comprises a flexible sleeve, a support member and at least one bearing, the support member is wrapped around the outer circumference of the bearing, and the flexible sleeve is wrapped around the outer circumference of the support member; The support member is provided with at least one first limiting portion, and the flexible sleeve is provided with at least one second limiting portion, and the first limiting portion and the second limiting portion interact with each other so that the support member and the flexible sleeve are mutually limited in the axial direction and / or circumferential direction of the support member.

29. A feeding device, characterized in that: It comprises a wire moving mechanism as described in any one of claims 1 to 14 above, and a device main body, wherein the wire moving mechanism is movably connected to the device main body; or it comprises a wire moving mechanism as described in any one of claims 15 to 28 above, and a device main body, wherein the wire moving mechanism is movably connected to the device main body.

30. A three-dimensional forming device, characterized in that: Comprising the feeding device as described in claim 29 above.

Images