Silk material moving mechanism, material tray box and 3D printer

Abstract

According to the silk moving mechanism, the tray box and the 3D printer, different extrusion assemblies are located at extrusion positions through movement of a first switching assembly, trays are driven to rotate, a driving mechanism does not need to be arranged for each tray, the structural complexity and the occupied space are reduced, and the control burden is reduced. According to the main technical scheme, according to the silk material moving mechanism, a first material disc connecting assembly is used for being correspondingly connected with a material disc, a power assembly is used for providing power, when an extrusion assembly is located at an extrusion position, the power assembly is connected with the corresponding first material disc connecting assembly through the extrusion assembly, and when the extrusion assembly is located at a separation position, the power assembly is connected with the corresponding second material disc connecting assembly. The first switching main body is separated from the power assembly and / or the corresponding first charging tray connecting assembly, and when the first switching main body is located at different switching positions, the corresponding different extrusion assemblies are located at the extrusion positions so as to drive different charging trays to rotate. 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 material tray box and a 3D printer. Background Art

[0002] In an FDM type 3D printer, the wire material is wound around a consumable material tray, the extruder clamps the wire material and conveys the wire material into the print head. The print head melts the wire material and sprays it onto the printing platform according to the model contour. After the wire material is solidified, a layer of the model can be formed. Layer by layer stacking is performed in this way to achieve three-dimensional forming.

[0003] To achieve diversification of the model, multiple material trays can be set for feeding different wire materials. During the wire material switching process, it is necessary to first cut the original wire material in the print head, then extract the original wire material, and then feed in the new wire material to prevent the print head from being blocked due to the movement of the molten section of the original wire material. To avoid the sagging, loosening and knotting of the wire material caused by wire material back-drawing, usually during the wire material back-drawing process, the material tray is driven to rotate to realize the rewind of the withdrawn wire material. In the prior art, a driving mechanism is usually provided separately for each material tray to drive the material tray to rotate, resulting in redundant driving mechanisms, complex equipment structure and large occupied space. Summary of the Utility Model

[0004] In view of this, to solve at least one of the above technical problems, the utility model provides a wire material moving mechanism, a material tray box and a 3D printer.

[0005] To achieve the above object, the utility model mainly provides the following technical solutions:

[0006] On the one hand, an embodiment of the utility model provides a wire material moving mechanism, which includes:

[0007] A first material tray connection component for connecting with the material tray;

[0008] A power component for providing power;

[0009] At least two extrusion components, the positions of the extrusion components include an extrusion position and a disengaged position. When the extrusion component is in the extrusion position, the power component is connected to the first material tray connection component through the extrusion component. When the extrusion component is in the disengaged position, the extrusion component is disengaged from the power component and / or the extrusion component is disengaged from the first material tray connection component;

[0010] A first switching component, which includes a first switching main body and a first switching driving member. The position of the first switching main body includes at least two switching positions. The first switching driving member is connected to the first switching main body and is used to drive the first switching main body to move between different switching positions. When the first switching main body is in different switching positions, the corresponding different extrusion components are in the extrusion position to drive different material trays to rotate.

[0011] On the other hand, the present utility model further provides a material tray box, which includes a wire material moving mechanism as described in any one of the foregoing, and

[0012] a box body. The wire material moving mechanism is connected to the box body, and the box body is further used for accommodating the material tray.

[0013] On yet another hand, the present utility model further provides a 3D printer, which includes a wire material moving mechanism as described in any one of the foregoing, or includes a material tray box as described in any one of the foregoing.

[0014] For a wire material moving mechanism, a material tray box and a 3D printer provided by the present utility model, mainly by the movement of the first switching component, different extrusion components are driven to be in the extrusion position, and then the power of the power component can be transmitted to the first material tray connection component, and then the material tray corresponding to the extrusion component is driven to rotate, so as to realize the rewinding of the wire material. There is no need to separately set a driving mechanism for each material tray, which greatly reduces the structural complexity and the occupied space, and there is no need to control a plurality of driving mechanisms one by one, thus reducing the control burden. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of a material tray box provided by an embodiment of the present utility model from a first perspective;

[0016] Figure 2 is a schematic structural diagram of a material tray box provided by an embodiment of the present utility model from a second perspective;

[0017] Figure 3 is a schematic structural diagram of a material tray box provided by an embodiment of the present utility model from a third perspective;

[0018] Figure 4 is a schematic structural diagram of a material tray box provided by an embodiment of the present utility model from a fourth perspective;

[0019] Figure 5 is an exploded view of the composition structure of a material tray box provided by an embodiment of the present utility model;

[0020] Figure 6 is a schematic structural diagram of an extrusion component in a moving mechanism provided by an embodiment of the present utility model;

[0021] Figure 7 is a schematic structural diagram of a first switching component in a moving mechanism provided by an embodiment of the present utility model from a first perspective;

[0022] Figure 8 is a schematic structural diagram of a first switching component in a moving mechanism provided by an embodiment of the present utility model from a second perspective;

[0023] Figure 9Schematic diagram of the structure of a power component in a moving mechanism provided by an embodiment of the present utility model;

[0024] Figure 10 Schematic diagram of the structure of a second switching component in a moving mechanism provided by an embodiment of the present utility model;

[0025] Figure 11 Schematic diagram of the structure of a tray box in a fifth perspective provided by an embodiment of the present utility model;

[0026] Figure 12 For Figure 11 Partial enlarged schematic diagram of the tray box in area A in

[0027] Figure 13 For Figure 11 Partial enlarged schematic diagram of the tray box in area B in

[0028] Figure 14 First sectional structure schematic diagram of a tray box when the extrusion component is in the extrusion position and the second switching body is in the material discharging position provided by an embodiment of the present utility model;

[0029] Figure 15 Second sectional structure schematic diagram of a tray box when the extrusion component is in the extrusion position and the second switching body is in the material discharging position provided by an embodiment of the present utility model;

[0030] Figure 16 First sectional structure schematic diagram of a tray box when the extrusion component is in the extrusion position and the second switching body is in the feeding position provided by an embodiment of the present utility model;

[0031] Figure 17 Second sectional structure schematic diagram of a tray box when the extrusion component is in the extrusion position and the second switching body is in the feeding position provided by an embodiment of the present utility model;

[0032] Figure 18 First sectional structure schematic diagram of a tray box when the extrusion component is in the disengaged position and the second switching body is in the feeding position provided by an embodiment of the present utility model;

[0033] Figure 19 Second sectional structure schematic diagram of a tray box when the extrusion component is in the disengaged position and the second switching body is in the feeding position provided by an embodiment of the present utility model. Detailed implementation manners

[0034] To further elaborate on the technical means and effects adopted by the present utility model to achieve the intended utility model purpose, the following specifically optional implementation manners, structures, features, and effects of the wire material moving mechanism proposed according to the present utility model will be described in detail with reference to the accompanying drawings and preferred embodiments as follows.

[0035] On the one hand, as Figures 1-19 shown, an embodiment of the present utility model provides a wire material moving mechanism. The wire material moving mechanism 10 includes:

[0036] A first tray connection assembly 100, which is used to connect with a tray;

[0037] A power assembly 200, which is used to provide power;

[0038] At least two extrusion assemblies 300. The positions of the extrusion assemblies 300 include an extrusion position and a disengaged position. When the extrusion assembly 300 is in the extrusion position, the power assembly 200 is connected to the first tray connection assembly 100 through the extrusion assembly 300. When the extrusion assembly 300 is in the disengaged position, the extrusion assembly 300 is disengaged from the power assembly 200 and / or the extrusion assembly 300 is disengaged from the first tray connection assembly 100;

[0039] A first switching assembly 400, which includes a first switching main body and a first switching driving member 430. The position of the first switching main body includes at least two switching positions. The first switching driving member 430 is connected to the first switching main body and is used to drive the first switching main body to move between different switching positions. When the first switching main body is in different switching positions, the corresponding different extrusion assemblies 300 are in the extrusion position to drive different trays to rotate.

[0040] The wire material moving mechanism 10 can be a separate structural component or connected to a 3D printer for transporting and / or recycling wire materials. For example, the wire material moving mechanism 10 further includes a general support member, and the first spool connection assembly 100, the power assembly 200, the extrusion assembly 300, and the first switching assembly 400 are all connected to the general support member, and the general support member can be connected to the 3D printer. Alternatively, the wire material moving mechanism 10 may not be connected to the 3D printer. For example, the general support member can be placed on the operating table, and only the wire material 20 is introduced into the print head of the 3D printer. The general support member can be a box-type structure including an accommodation space, and the spool can be located in the accommodation space of the general support member. Alternatively, the general support member can be an open support member, which can be of various structures, as long as it can connect and support the first spool connection assembly 100, the power assembly 200, the extrusion assembly 300, and the first switching assembly 400. Specific examples are not listed one by one in this application. In some embodiments, the general support member can also be a part of the structure of the 3D printer, such as a part of the gantry or the base. Or, in some embodiments, a spool box can be provided. The spool box includes a box body 30, and the box body 30 is used to place the spool. The wire material moving mechanism 10 can be directly arranged in the box body 30. Alternatively, the aforementioned general support member is a part of the structure of the box body 30. It is common general knowledge in the art that the first spool connection assembly 100, the power assembly 200, the extrusion assembly 300, and / or the first switching assembly 400 can be connected to the general support member, the 3D printer, or the box body 30 through bearings, and thus will not be described one by one.

[0041] The first spool connection assembly 100 is used to drive the spool to rotate by its own rotation. The spool mainly includes a central axis and end plates located on both sides of the central axis, and the central axis is used to wind the wire material 20. The connection manner between the first spool connection assembly 100 and the spool can be various. For example, in one embodiment, the first spool connection assembly 100 abuts against the end plate, such as abutting against the edge of the end plate. Alternatively, the first spool connection assembly 100 is coaxially connected to the central axis.

[0042] The power assembly 200 is at least used to provide the power for driving the rotation of the first tray connection assembly 100 or the tray. The extrusion assembly 300, the first tray connection assembly 100, and the tray have a corresponding relationship. For example, both the extrusion assembly 300 and the first tray connection assembly 100 are four in number, and four trays can be correspondingly moved and switched. The extrusion assembly 300 changes its own position to switch whether power is transmitted between the power assembly 200 and the first tray connection assembly 100. When the extrusion assembly 300 is in the extrusion position, the power assembly 200 is connected to the corresponding first tray connection assembly 100 through the extrusion assembly 300, and then the power transmission between the power assembly 200 and the corresponding first tray connection assembly 100 is achieved, causing the tray corresponding to the extrusion assembly 300 to rotate, and then rewinding the wire material 20. When the extrusion assembly 300 is in the disengaged position, the extrusion assembly 300 is disengaged from the power assembly 200 and / or the extrusion assembly is disengaged from the corresponding first tray connection assembly 100, and then power transmission cannot be carried out, causing the tray corresponding to the extrusion assembly 300 to stop rotating and stop rewinding the wire material 20. The power assembly 200 can continuously rotate to provide power, or it can rotate to provide power after the position of the extrusion assembly 300 is switched, that is, when the extrusion assembly 300 reaches the extrusion position. When the extrusion assembly 300 disengages from the extrusion position, the power assembly 200 stops rotating.

[0043] The first switching assembly 400 is used to switch the position of the extrusion assembly 300, and the number of switching positions of the first switching body is the same as the number of the extrusion assemblies 300. When the first switching body is at different switching positions, the corresponding different extrusion assemblies 300 are in the extrusion position, and the other extrusion assemblies 300 are all in the disengaged position. Then, when the first switching body is at different switching positions, different trays rewind the wire material 20. For example Figure 11As shown, in the embodiment where both the extrusion assembly 300 and the material tray are four in number, the number of switching positions is also four. When the first switching body is in the first switching position, the first extrusion assembly 300a is in the extrusion position, and the second extrusion assembly 300b, the third extrusion assembly 300c, and the fourth extrusion assembly 300d are all in the disengaged positions. Then, when the power assembly 200 rotates, the first material tray corresponding to the first extrusion assembly 300a rotates, and then the wire material 20 is rewound. When it is necessary to rewind the wire material 20 of the second material tray, the first switching drive 430 drives the first switching body to move to the second switching position. The first extrusion assembly 300a moves from the extrusion position to the disengaged position, and the first material tray loses power and then stops rewinding the wire material 20. The second extrusion assembly 300b moves to the extrusion position, and the third extrusion assembly 300c and the fourth extrusion assembly 300d remain in the disengaged positions. Then, when the power assembly 200 rotates, the second material tray corresponding to the second extrusion assembly 300b rotates, and then the wire material 20 is rewound. The switching of the third material tray and the fourth material tray is the same as the principle of the foregoing embodiment and will not be elaborated. The movement of the first switching drive 430 driving the first switching body can be in various forms. For example, it can be a linear movement or a rotation, which can be set according to the specific structure of the first switching body.

[0044] When it is necessary to rewind and retract the material from the material tray, the movement of the material tray can be switched by driving the movement of the first switching body by the first switching drive 430. Then, it is possible to realize the rewinding of consumables at different positions by only setting two active driving parts, namely the power assembly 200 and the first switching drive 430, which greatly reduces the number of driving elements and the space occupied.

[0045] A wire material moving mechanism, a material tray box, and a 3D printer proposed in an embodiment of the present utility model mainly drive different extrusion assemblies to be in the extrusion position by the movement of the first switching assembly. Then, the power of the power assembly can be transmitted to the first material tray connection assembly, and then the material tray corresponding to the extrusion assembly is driven to rotate to realize the rewinding of the wire material. There is no need to separately set a driving mechanism for each material tray, which greatly reduces the structural complexity and the occupied space, and there is no need to control multiple driving mechanisms one by one, reducing the control burden.

[0046] In an optional embodiment, as Figure 6 shown, the extrusion assembly 300 includes a wheel seat 310 and a gear assembly. The first end of the wheel seat 310 is rotatably connected to the total support member, and the second end of the wheel seat 310 is connected to the first switching body at least when the extrusion assembly 300 is in the extrusion position. The gear assembly is rotatably connected to the wheel seat 310 and is located between the first end and the second end of the wheel seat 310. When the extrusion assembly 300 is in the extrusion position, the gear assembly is in transmission connection with the power assembly 200 and the first material tray connection assembly 100.

[0047] The power assembly 200 and the first tray connection assembly 100 can be arranged at intervals, and the extrusion assembly 300 can pass through between the power assembly 200 and the first tray connection assembly 100. It can be understood that the second end of the wheel seat 310 does not refer to the end of the wheel seat 310, but the other end of the wheel seat 310 relative to the first end. The first end of the wheel seat 310 only rotates. Under the action of the first switching body, the second end of the wheel seat 310 moves, and then drives the gear assembly located between the first end and the second end of the wheel seat 310 to move. When the extrusion assembly 300 moves from the extrusion position to the disengaged position, the gear assembly can move upward, or move downward, or move to one side in the axial direction, aiming to disengage from one of the power assembly 200 and the first tray connection assembly 100. Taking the movement of the extrusion assembly 300 to the disengaged position as the downward movement of the gear assembly as an example, when the extrusion assembly 300 is in the extrusion position, the gear assembly is connected to both the power assembly 200 and the first tray connection assembly 100, and then power transmission is realized. The extrusion assembly 300 moves to the disengaged position, and then the gear assembly moves downward, and the gear assembly disengages from the power assembly 200 and / or the first tray connection assembly 100. The connection of the second end of the wheel seat 310 to the first switching body at least when the extrusion assembly 300 is in the extrusion position means that when the extrusion assembly 300 is in the disengaged position, the wheel seat 310 of the extrusion assembly 300 can be connected to the first switching body, and then the first switching body restricts the wheel seat 310 in the disengaged position. Or, when the extrusion assembly 300 is in the disengaged position, the wheel seat 310 of the extrusion assembly 300 may not be connected to the first switching body, and the extrusion assembly 300 can be kept in the disengaged position through the structural limit between the wheel seat 310 and the total support member. When it is necessary for the extrusion assembly 300 to move to the extrusion position, the first switching body moves and then connects to the wheel seat 310, and continues to move and act on the second end of the wheel seat 310, and then the wheel seat 310 moves and the extrusion assembly 300 moves to the extrusion position and is fixed in the extrusion position.

[0048] In an alternative embodiment, when the extrusion assembly 300 is in the extrusion position, the extrusion assembly 300 cooperates with the power assembly 200 to clamp the wire material 20 at the corresponding position.

[0049] When the wire material 20 is retracted, it can be that only the tray rotates, and the wire material 20 is in a suspended state between the tray and the print head, and the wire material 20 is only pulled back from the print head by the rewinding of the tray. Or, as in the above embodiment, the extrusion assembly 300 cooperates with the power assembly 200 to clamp the wire material 20 at the corresponding position. During the rewinding of the tray, the wire material 20 is actively clamped and retracted, increasing the retraction power of the wire material 20 and avoiding insufficient retraction length of the wire material 20 caused by slipping between the tray and the first tray connection assembly 100.

[0050] When the extrusion assembly 300 is in the disengaged position and the wire material 20 is no longer retracted, in an alternative implementation, when the extrusion assembly 300 is in the disengaged position, the extrusion assembly 300 is at least disengaged from the power assembly 200. Subsequently, when the extrusion assembly 300 is in the disengaged position, the extrusion assembly 300 and the power assembly 200 no longer clamp the wire material 20, and neither the wire material 20 nor the material tray moves.

[0051] In an alternative implementation, as Figure 6 shown, to enable the extrusion assembly 300 and the power assembly 200 to cooperate to clamp the wire material 20 at the corresponding position, on the basis of the foregoing implementation in which the extrusion assembly 300 includes a wheel seat 310 and a gear assembly, the extrusion assembly 300 further includes a pressing wheel 340. Both the gear assembly and the pressing wheel 340 are rotatably connected to the wheel seat 310 and are located between the first end and the second end of the wheel seat 310. When the extrusion assembly 300 is in the pressing position, the pressing wheel 340 cooperates with the power assembly 200 to clamp the wire material 20 at the corresponding position.

[0052] The pressing wheel 340 can be a D-shaped wheel, a rubber-faced wheel, a gear, etc., and can be configured in cooperation with the structure of the power assembly 200 to clamp the wire material 20 and ensure sufficient friction with the wire material 20 to prevent the wire material 20 from slipping.

[0053] In an alternative implementation, as Figure 6 shown, the extrusion assembly 300 further includes a first elastic member 350 and a first support seat 360. The first elastic member 350 is respectively connected to the wheel seat 310 and the first support seat 360. The first support seat 360 is connected to the first switching body at least when the extrusion assembly 300 is in the pressing position.

[0054] The first elastic member 350 functions as a buffer for the wheel seat 310. Mechanical errors, etc. will cause position errors of the wheel seat 310. The setting of the first elastic member 350 can avoid the rigid extrusion of the gear assembly and the pressing wheel 340 with the power assembly 200 caused by position errors and avoid mechanical damage. When the extrusion assembly 300 is in the disengaged position, the first support seat 360 can be connected to the first switching body or not connected to the first switching body, and the first switching body is used to act on the first support seat 360 to move the extrusion assembly 300 to the pressing position and maintain it in the pressing position.

[0055] In an alternative implementation, as Figure 6As shown, the gear assembly includes a first unloading drive gear 320 and a second unloading drive gear 330, both of which are rotatably connected to the wheel seat 310. When the extrusion assembly 300 is in the extrusion position, the first unloading drive gear 320 is in transmission connection with the power assembly 200, and the second unloading drive gear 330 is in transmission connection with the first tray connection assembly 100.

[0056] The gear assembly includes a first unloading drive gear 320 and a second unloading drive gear 330, which can reduce the space occupied by the gear assembly compared to a single large gear.

[0057] In an alternative embodiment, as Figures 7-8 shown, the first switching body includes a first linkage 410 and at least two actuating members 420. The actuating members 420 are connected to the first linkage 410. The actuating members 420 include acting ends. When the first switching body is in different switching positions, the acting ends of different actuating members 420 act on the corresponding extrusion assembly 300 to make the extrusion assembly 300 in the extrusion position.

[0058] When the first switching body is in different switching positions, the acting ends of different actuating members 420 contact the wheel seat 310, and then lift the wheel seat 310, causing the gear assembly to move upward to contact the power assembly 200 and the first tray connection assembly 100, and the extrusion wheel 340 to move upward to cooperate with the power assembly 200 to extrude the wire material 20.

[0059] The moving manner and specific structure of the actuating members 420 can be various. For example, the first linkage 410 can be a rotating shaft, the actuating members 420 can be cams, and the acting end is the end of the actuating member 420 farthest from the axis of the rotating shaft. The projected positions of the acting ends of the respective actuating members 420 in the axial direction of the first linkage 410 are different. The first linkage 410 is used for rotation so that the acting ends of different actuating members 420 act on the extrusion assembly 300. As Figures 11-12As shown, when the first material tray rewinds the wire material 20, the first switching driving member 430 drives the first switching body to move to the first switching position, and the acting end of the first acting member 420 jacks up the first extrusion assembly 300a, so that the first extrusion assembly 300a moves to the extrusion position. The first material tray obtains power to rewind the wire material 20, and the first extrusion assembly 300a cooperates with the power assembly 200 to extrude and push the wire material 20. When it is not necessary for the first material tray to rewind the wire material 20, the first switching driving member 430 drives the first switching body to move away from the first switching position, and the acting end of the first acting member 420 will disengage from the first extrusion assembly 300a. The first extrusion assembly 300a will move towards the disengaging position under the action of gravity. Or, in an embodiment where a reset elastic member is connected between the first extrusion assembly 300a and the total support member, the first extrusion assembly 300a moves towards the disengaging position under the combined action of gravity and the elastic force of the reset elastic member. Then the first material tray loses power and stops moving, and the first extrusion assembly 300a and the power assembly 200 release the wire material 20. The reset elastic member can be a torsion spring. The power member 230 can be a combination of a motor and a synchronous belt, and the synchronous belt connects the output end of the motor and the first linkage member 410.

[0060] In one embodiment, the projections of the acting ends of at least two acting members 420 on the axis of the first linkage member 410 are circumferentially evenly distributed around the axis of the first linkage member 410. For example, in an embodiment where there are four acting members 420, the projections of the acting ends of the four acting members 420 on the axis of the first linkage member 410 are circumferentially evenly distributed around the axis of the first linkage member 410. Or rather, among the projections of the acting ends of the four acting members 420 on the axis of the first linkage member 410, the circumferential interval angle between two adjacent projections on the circumference of the first linkage member 410 is 90 degrees. On the one hand, it is possible to increase the circumferential interval angle between adjacent acting ends on the circumference of the first linkage member 410 as much as possible, so that when at different switching positions, the rotation angle of the acting member 420 is as large as possible. Then it is possible to increase the moving amplitude of the extrusion assembly 300 between the extrusion position and the disengaging position, and achieve precise transmission and disengagement of the extrusion assembly 300. On the other hand, when moving at different switching positions, the rotation angle of the first linkage member 410 is 90 degrees or an integer multiple of 90 degrees, which is convenient for control and reduces the control cost.

[0061] In some other alternative embodiments, the first switching driving member 430 can also drive the first linkage member 410 to move linearly, so that the acting ends of different acting members 420 act on the corresponding extrusion assemblies 300. For example, if the acting ends of all the acting members 420 are arranged upward, when the first switching driving member 430 drives the first switching body to move to the first switching position, the first acting member 420 slides under the first extrusion assembly 300a, and then jacks up the first extrusion assembly 300a. When the first switching driving member 430 drives the first switching body to move away from the first switching position, the first acting member 420 slides to the outside of the first extrusion assembly 300a, and then the first extrusion assembly 300a drops down.

[0062] In an alternative embodiment, as Figure 9 shown, the power assembly 200 includes a power shaft 210 and a driving gear 220. The driving gear 220 is connected to the power shaft 210. When the extrusion assembly 300 is in the extrusion position, the driving gear 220 is connected to the extrusion assembly 300. The power assembly 200 further includes a power member 230. The power member 230 is in transmission connection with the power shaft 210, and the power member 230 is used to drive the power shaft 210 and the driving gear 220 to rotate.

[0063] The aforementioned extrusion wheel 340 can be a D-shaped wheel or a rubber wheel. The driving gear 220 is provided with engaging teeth on the outside. The extrusion wheel 340 cooperates with the driving gear 220 to effectively extrude and push the wire material 20. The power member 230 can be a combination of a motor and a synchronous belt. The synchronous belt connects the output end of the motor and the power shaft 210.

[0064] In an alternative embodiment, the first material tray connection assembly 100 includes a connecting shaft and an adhesive layer. The adhesive layer is wrapped around the connecting shaft, and the adhesive layer is used to frictionally abut against the edge of the end plate of the material tray.

[0065] The adhesive layer can increase the friction force with the material tray and prevent the first material tray connection assembly 100 from slipping with the material tray.

[0066] In an alternative embodiment, the wire material moving mechanism further includes: a second switching assembly 600. The second switching assembly 600 includes a second switching body. The positions of the second switching body include a feeding position and a discharging position. When the extrusion assembly 300 is in the extrusion position and the second switching body is in the feeding position, the second switching body is disengaged from the extrusion assembly 300 and / or the second switching body is disengaged from the first material tray connection assembly 100. So that the extrusion assembly 300 and the first material tray connection assembly 100 are disengaged from the transmission connection. When the extrusion assembly 300 is in the extrusion position and the second switching body is in the discharging position, the extrusion assembly 300 is in transmission connection with the first material tray connection assembly 100 through the second switching body.

[0067] The movement of the second switching body realizes the switching between feeding and withdrawing the wire material 20. Figures 14-15 As shown, when the extrusion assembly 300 is in the extrusion position and the second switching body is in the material withdrawal position, the extrusion assembly 300 cooperates with the power assembly 200 to clamp the wire material 20 at the corresponding position, and then the power assembly 200 rotates forward to move and withdraw the wire material 20. At the same time, the extrusion assembly 300 is connected to the power assembly 200 by transmission, and the extrusion assembly 300 is connected to the first material tray connection assembly 100 by transmission through the second switching body, and then the power of the power assembly 200 will be transmitted to the first material tray connection assembly 100, driving the material tray to rotate synchronously and rewind the wire material 20. Figures 16-17 As shown, when the extrusion assembly 300 is in the extrusion position and the second switching body is in the feeding position, the extrusion assembly 300 cooperates with the power assembly 200 to clamp the wire 20 at the corresponding position, and then the power assembly 200 rotates in the opposite direction to move and feed the wire 20. At the same time, the second switching body is separated from the extrusion assembly 300 and the first tray connection assembly 100, and then the extrusion assembly 300 is in transmission connection with the power assembly 200, while the extrusion assembly 300 is separated from the first tray connection assembly 100. The power of the power assembly 200 cannot be transmitted to the first tray connection assembly 100, and the tray will not rotate actively, but passively rotate to release the wire 20 under the pull of the wire 20. It can be understood that when the second switching body is in the feeding position, the second switching body can also be separated from only one of the extrusion assembly 300 and the first tray connection assembly 100, such as only from the extrusion assembly 300, or only from the first tray connection assembly 100.

[0068] In an optional implementation, Figure 10 As shown, the second switching body includes a second linkage 610 and at least two driving wheel assemblies. The driving wheel assembly is connected to the second linkage 610. When the extrusion assembly 300 is in the extrusion position, the driving wheel assembly is connected to the extrusion assembly 300 and the first material tray connecting assembly 100. The driving wheel assembly is used to rotate for power transmission.

[0069] The driving wheel assembly can be rotated by rotating the driving wheel assembly and the second linkage member 610, and the second linkage member 610 does not rotate. Alternatively, the driving wheel assembly and the second linkage member 610 rotate synchronously, and the second linkage member 610 is connected to the aforementioned general support member through a bearing. This can be determined according to the movement mode of the second linkage member 610.

[0070] In an alternative embodiment, the drive wheel assembly includes a third unloading drive gear 620 and at least two drive rubber wheels 630. The third unloading drive gear 620 can be a gear for meshing connection with the gear assembly of the extrusion assembly 300. The drive rubber wheels 630 can be made of rubber or soft rubber and are used for connection with the rubber layer of the first tray connection assembly 100, thereby realizing transmission. The third unloading drive gear 620 and the drive rubber wheels 630 are circumferentially limited to ensure circumferential synchronous rotation of the third unloading drive gear 620 and the drive rubber wheels 630. It can be that both the third unloading drive gear 620 and the drive rubber wheels 630 are rotationally connected to the second linkage 610 after circumferential limitation, or it can be that both the third unloading drive gear 620 and the drive rubber wheels 630 are circumferentially limited to the second linkage 610.

[0071] In an alternative embodiment, the second switching assembly 600 further includes a drive assembly for driving the second switching body to move between the feeding position and the unloading position.

[0072] The moving manner of the second switching body can be various, such as rotation, linear movement, curved movement, etc., aiming to selectively achieve the transmission connection between the extrusion assembly 300 and the first tray connection assembly 100. For example, in one embodiment, the movement of the second switching body is up and down movement. In an alternative embodiment, the second linkage 610 does not rotate and only drives the third unloading drive gear 620 and the drive rubber wheels 630 to lift and lower, while the third unloading drive gear 620 and the drive rubber wheels 630 are rotationally connected to the second linkage 610.

[0073] In an alternative embodiment, as Figure 10 、 Figure 13 shown, the drive assembly includes a second switching drive 640 and a second elastic member 650. The output end of the second switching drive 640 is connected to the second linkage 610 through the second elastic member 650.

[0074] The second elastic member 650 is used to buffer the force of the drive assembly. When there are installation errors in the drive assembly, the second linkage 610, etc., the second elastic member 650 prevents rigid extrusion between the second linkage 610 and the extrusion assembly 300 and the first tray connection assembly 100 due to position errors of the second linkage 610, avoiding damage to components. The second elastic member 650 can be a spring, foam, soft rubber, etc., such as a compression spring or a torsion spring.

[0075] In an alternative embodiment, the driving assembly further includes a second support base 660 and a pressing head 670. The output end of the second switching driving member 640 is connected to the pressing head 670. The second elastic member 650 is respectively connected to the second support base 660 and the pressing head 670, and the second support base 660 is connected to the second linkage member 610. The connection between the second elastic member 650 and the second support base 660 and / or the pressing head 670 can be at least one of hanging connection, clamping connection, snap connection, and plug connection, which facilitates the replacement of the second elastic member 650 and increases the support area of the second elastic member 650, making the position of the second elastic member 650 more stable.

[0076] In an alternative embodiment, the second switching assembly 600 further includes at least one third elastic member 680. The third elastic member 680 is at least connected to the second switching body. The third elastic member 680 is used to apply an elastic force to the second switching body to cooperate with the driving assembly to move the second switching body between the feeding position and the discharging position.

[0077] The driving assembly is used to drive the second switching body to move unidirectionally, such as moving downward or upward, to reduce the structural complexity of the driving assembly. In an alternative embodiment, for example, the driving assembly is used to apply an external force to the second switching body to make the second switching body move to the discharging position, that is, the driving assembly is used to apply an external force to the second switching body to make the second switching body move downward. The pressing head 670 and the second elastic member 650 are both located above the second linkage member 610, and the pressing head 670 presses the second linkage member 610 downward. The third elastic member 680 is used to apply an elastic force to the second switching body or the second linkage member 610 to make the second switching body move to the feeding position, that is, the third elastic member 680 is used to drive the second linkage member 610 to move upward to reset it when the external force of the pressing head 670 is withdrawn. Or, in another alternative embodiment, the driving assembly is used to apply an external force to the second switching body to make the second switching body move to the feeding position, that is, the driving assembly is used to apply an external force to the second switching body to make the second switching body move upward. The pressing head 670 and the second elastic member 650 are both located below the second linkage member 610, and the pressing head 670 presses the second linkage member 610 upward. The third elastic member 680 is used to apply an elastic force to the second switching body or the second linkage member 610 to make the second switching body move to the discharging position, that is, the third elastic member 680 is used to drive the second linkage member 610 to move downward when the external force of the pressing head 670 is withdrawn.

[0078] The third elastic member 680 can be one or more, such as two arranged along the length direction of the second linkage member 610. The third elastic member 680 can be a spring, a foam, a soft rubber, etc. For example Figure 10As shown, a connecting block may be provided on the second linkage member 610 and / or the total support body, an installation groove is formed on the connecting block, and the third elastic member 680 may be a spring, and both ends of the spring are inserted into the installation groove.

[0079] In an alternative embodiment, as Figure 5 、 Figure 8 shown, the wire moving mechanism further includes a first position detector 710 and a second position detector 720. The first position detector 710 is connected to the first switching body, and the first position detector 710 is used to move along with the first switching body. The second position detector 720 is used to interact with the first position detector 710 to generate a feedback signal for feedbacking the switching position where the first switching body is located.

[0080] The first position detector 710 and the second position detector 720 may be a combination of a light-shielding protrusion and a photoelectric switch, a combination of a contact and a touch switch, a combination of a magnetic member and a magnetic sensor, etc. Taking the first light-shielding protrusion and the photoelectric switch as an example, the first position detector 710 includes a turntable and a first light-shielding protrusion. In an embodiment where the first switching body moves to different switching positions by rotation, the turntable is coaxially connected to the first switching body, and the first light-shielding protrusion can be connected to the edge of the turntable and surround the turntable for one week. The second position detector 720 is a photoelectric switch, and the first light-shielding protrusion extends into the detection groove of the photoelectric switch. When the first switching body rotates, the first light-shielding protrusion will intermittently block the light of the second position detector 720, and then trigger the second position detector 720 to emit a first feedback signal. Then, the rotation angle of the first switching body can be calculated according to the number of the first feedback signals to determine which acting end of the acting member 420 acts on the extrusion assembly 300.

[0081] In an alternative embodiment, the position of the first switching body further includes a neutral position. When the first switching body is in the neutral position, all the extrusion assemblies 300 are in the disengaged position.

[0082] As Figures 18-19 shown, the first switching body can be moved to the neutral position, and all the extrusion assemblies 300 will not contact the power assembly 200 and will not extrude the wire 20. At the same time, the second switching body is moved to the feeding position. It is convenient for the disassembly and assembly of each component, the manual extraction and insertion of the wire 20, as well as maintenance, testing, etc. In an embodiment where the wire moving mechanism includes the first position detector 710 and the second position detector 720, the first feedback signal is further used to feedback that the first switching body moves to the neutral position.

[0083] In an alternative embodiment, as Figure 5 、 Figure 8As shown, the position of the first switching body further includes a zero position. The wire material moving mechanism further includes: a third position detector 730 and a fourth position detector 740. The third position detector 730 is connected to the first switching body and is used to move along with the first switching body. The fourth position detector 740 is used to interact with the third position detector 730 to generate a second feedback signal for feeding back that the first switching body has moved to the zero position.

[0084] When the first switching body is located at the zero position, it can be considered that the rotation angle of the first switching body is 0 degrees, realizing the reset of the position of the first switching body. Starting from the zero position, the rotation angle of the first switching body can be accurately obtained according to the number of the first feedback signals obtained. The third position detector 730 and the fourth position detector 740 can be a combination of a light-shielding protrusion and a photoelectric switch, a combination of a contact and a touch switch, a combination of a magnetic part and a magnetic sensor, etc. For example, the third position detector 730 is a second light-shielding protrusion, which can be arranged on the turntable of the first position detector 710 and is located at a different circumferential position from the first light-shielding protrusion of the first position detector 710, such as inside the first light-shielding protrusion. The fourth position detector 740 is a photoelectric switch arranged in parallel with the second position detector 720.

[0085] On the other hand, an embodiment of the present invention further provides a tray box, including the wire material moving mechanism 10 as described in any one of the foregoing, and a box body 30. The wire material moving mechanism is connected to the box body 30, and the box body 30 is further used to accommodate the tray.

[0086] The aforementioned total support body can be connected to the box body 30 or be a part of the structure of the box body 30. The box body 30 can be a box structure, including an accommodation cavity for accommodating the tray. The tray box includes the wire material moving mechanism 10 as described in any one of the foregoing, and has the advantages of the wire material moving mechanism 10 as described in any one of the foregoing, which will not be elaborated here.

[0087] In an alternative embodiment, the tray box further includes: a second tray connection assembly 40, a first tray connection assembly 100. The first tray connection assembly 100 and the second tray connection assembly 40 are rotatably connected to the box body 30, and the first tray connection assembly 100 and the second tray connection assembly 40 are spaced apart and abut against the edge of the end plate of the tray 20.

[0088] The structures of the first tray connection assembly 100 and the second tray connection assembly 40 can be the same. The first tray connection assembly 100 and the second tray connection assembly 40 can be spaced apart and abut against the edge of the end plate of the tray at the bottom of the tray, thereby playing a role in supporting the tray. The second tray connection assembly 40 rotates along with the rotation of the tray, so that the friction force on the tray is small and the rotation of the tray is smoother.

[0089] On the other hand, the present utility model further provides a 3D printer, which includes the wire material moving mechanism of any one of the above, or includes the material tray box of any one of the above.

[0090] The 3D printer includes the wire material moving mechanism 10 of any one of the foregoing, and includes the advantages of the wire material moving mechanism 10 of any one of the foregoing, or includes the material tray box of any one of the above, and includes the advantages of the material tray box of any one of the above, which will not be elaborated here.

[0091] The present application further provides the following embodiments:

[0092] Reference numeral 1, a wire material moving mechanism, wherein the wire material moving mechanism 10 includes:

[0093] A first material tray connection component 100, and the first material tray connection component 100 is used for connecting with the material tray;

[0094] A power component 200, and the power component 200 is used for providing power;

[0095] At least two extrusion components 300, the positions of the extrusion components 300 include an extrusion position and a disengaged position. When the extrusion component 300 is in the extrusion position, the power component 200 is connected with the first material tray connection component 100 through the extrusion component 300. When the extrusion component 300 is in the disengaged position, the extrusion component 300 is disengaged from the power component 200, and / or the extrusion component 300 is disengaged from the first material tray connection component 100;

[0096] A first switching component 400, the first switching component 400 includes a first switching main body and a first switching driving member 430. The position of the first switching main body includes at least two switching positions. The first switching driving member 430 is connected with the first switching main body and is used for driving the first switching main body to move between different switching positions. When the first switching main body is located at different switching positions, the corresponding different extrusion components 300 are in the extrusion position to drive different material trays to rotate.

[0097] Reference numeral 2, the wire material moving mechanism according to reference numeral 1, wherein the wire material moving mechanism further includes:

[0098] A general support member, the extrusion component 300 includes a wheel seat 310 and a gear assembly. The first end of the wheel seat 310 is rotatably connected with the general support member, and the second end of the wheel seat 310 is connected with the first switching main body at least when the extrusion component 300 is in the extrusion position;

[0099] The gear assembly is rotatably connected with the wheel seat 310 and is located between the first end and the second end of the wheel seat 310;

[0100] When the extrusion component 300 is in the extrusion position, the power component 200 is in transmission connection with the first material tray connection component 100 through the gear assembly.

[0101] Reference numeral 3, a wire material moving mechanism according to reference numeral 1, wherein:

[0102] When the extrusion assembly 300 is in the extrusion position, the extrusion assembly 300 cooperates with the power assembly 200 to clamp the wire material 20 at the corresponding position.

[0103] Reference numeral 4. A wire material moving mechanism according to reference numeral 3, wherein:

[0104] When the extrusion assembly 300 is in the disengaged position, the extrusion assembly 300 is at least disengaged from the power assembly 200 .

[0105] Reference numeral 5. The wire moving mechanism according to reference numeral 3, wherein the wire moving mechanism further comprises:

[0106] The main support, the extrusion assembly 300 includes a wheel seat 310, a gear assembly and an extrusion wheel 340, the first end of the wheel seat 310 is rotatably connected to the main support, and the second end of the wheel seat 310 is connected to the first switching body at least when the extrusion assembly 300 is in the extrusion position;

[0107] The gear assembly and the extrusion wheel 340 are both rotatably connected to the wheel seat 310 and are located between the first end of the wheel seat 310 and the second end of the wheel seat 310;

[0108] When the extrusion assembly 300 is located at the extrusion position, the power assembly 200 is transmission-connected to the first tray connection assembly 100 via the gear assembly, and the extrusion wheel 340 cooperates with the power assembly 200 to clamp the wire material 20 at the corresponding position.

[0109] Reference numeral 6. A wire moving mechanism according to reference numeral 2 or 5, wherein:

[0110] The extrusion assembly 300 further includes a first elastic member 350 and a first support seat 360. The first elastic member 350 is connected to the wheel seat 310 and the first support seat 360 respectively. The first support seat 360 is connected to the first switching body at least when the extrusion assembly 300 is in the extrusion position.

[0111] Reference numeral 7. A wire moving mechanism according to reference numeral 2 or 5, wherein:

[0112] The gear assembly includes a first material-removing driving gear 320 and a second material-removing driving gear 330, and the first material-removing driving gear 320 and the second material-removing driving gear 330 are both rotatably connected to the wheel seat 310;

[0113] When the extrusion assembly 300 is in the extrusion position, the first material-removing driving gear 320 is transmission-connected to the power assembly 200 , and the second material-removing driving gear 330 is transmission-connected to the first material tray connecting assembly 100 .

[0114] Reference numeral 8. The wire material moving mechanism according to reference numeral 1, wherein:

[0115] The first switching body includes a first linkage 410 and at least two acting members 420. The acting members 420 are connected to the first linkage 410. The acting members 420 include acting ends. When the first switching body is in different switching positions, the acting ends of different acting members 420 act on the corresponding extrusion assemblies 300, so that the extrusion assemblies 300 are in the extrusion positions.

[0116] Reference numeral 9. The wire material moving mechanism according to reference numeral 8, wherein

[0117] The first switching driving member 430 is used to drive the first linkage 410 to move linearly, so that the acting ends of different acting members 420 act on the corresponding extrusion assemblies 300;

[0118] Alternatively, the first switching driving member 430 is used to drive the first linkage 410 to rotate, so that the acting ends of different acting members 420 act on the corresponding extrusion assemblies 300.

[0119] Reference numeral 10. The wire material moving mechanism according to reference numeral 8, wherein

[0120] The first linkage 410 is used to rotate. The acting member 420 is a cam. The projection positions of the acting ends of the acting member 420 in the axial direction of the first linkage 410 are different.

[0121] Reference numeral 11. The wire material moving mechanism according to reference numeral 10, wherein

[0122] The projections of the acting ends of at least two acting members 420 in the axial direction of the first linkage 410 are circumferentially and uniformly distributed around the axis of the first linkage 410.

[0123] Reference numeral 12. The wire material moving mechanism according to reference numeral 1, wherein

[0124] The power assembly 200 includes a power shaft 210 and a driving gear 220. The driving gear 220 is connected to the power shaft 210. When the extrusion assembly 300 is in the extrusion position, the driving gear 220 is connected to the extrusion assembly 300;

[0125] The power assembly 200 further includes a power member 230. The power member 230 is in transmission connection with the power shaft 210. The power member 230 is used to drive the power shaft 210 and the driving gear 220 to rotate.

[0126] Reference numeral 13. The wire material moving mechanism according to reference numeral 1, wherein

[0127] The first material tray connection assembly 100 includes a connection shaft and an adhesive layer. The adhesive layer is wrapped around the connection shaft. The adhesive layer is used to frictionally abut against the edge of the end plate of the material tray.

[0128] Reference numeral 14. The wire material moving mechanism according to reference numeral 3, wherein the wire material moving mechanism further comprises:

[0129] A second switching component 600, the second switching component 600 includes a second switching body, and the positions of the switching body include a feeding position and a discharging position;

[0130] When the extrusion component 300 is in the extrusion position and the second switching body is in the discharging position, the extrusion component 300 is drivingly connected to the first material tray connection component 100 through the second switching body;

[0131] When the extrusion component 300 is in the extrusion position and the second switching body is in the feeding position, the second switching body is disengaged from the extrusion component 300 and / or the second switching body is disengaged from the first material tray connection component 100, so that the extrusion component 300 and the first material tray connection component 100 are disengaged from the driving connection.

[0132] Reference numeral 15. The wire material moving mechanism according to reference numeral 14, wherein,

[0133] The second switching body includes a second linkage member 610 and a driving wheel assembly. The driving wheel assembly is connected to the second linkage member 610. When the second switching body is in the discharging position, the driving wheel assembly is connected to the extrusion component 300 and the first material tray connection component 100, and the driving wheel assembly is used for rotation;

[0134] The driving wheel assembly is rotatably connected to the second linkage member 610, or the driving wheel assembly rotates synchronously with the second linkage member 610.

[0135] Reference numeral 16. The wire material moving mechanism according to reference numeral 15, wherein,

[0136] The driving wheel assembly includes a third discharging driving gear 620 and at least two driving rubber wheels 630. When the second switching body is in the discharging position, the third discharging driving gear 620 is connected to the extrusion component 300, and the driving rubber wheels 630 are connected to the first material tray connection component 100;

[0137] The third discharging driving gear 620 and the driving rubber wheels 630 are circumferentially limited.

[0138] Reference numeral 17. The wire material moving mechanism according to reference numeral 14, wherein,

[0139] The second switching component 600 further includes a driving component, and the driving component is used for driving the second switching body to move between the feeding position and the discharging position;

[0140] The driving component includes a second switching driving member 640 and a second elastic member 650. The output end of the second switching driving member 640 is connected to the second linkage member 610 through the second elastic member 650;

[0141] The driving assembly further includes a second support base 660 and a pressing head 670. The output end of the second switching driving member 640 is connected to the pressing head 670. The second elastic member 650 is respectively connected to the second support base 660 and the pressing head 670. The second support base 660 is connected to the second linkage member 610.

[0142] Reference numeral 18. The wire material moving mechanism according to reference numeral 17, wherein

[0143] The second switching assembly 600 further includes at least one third elastic member 680. The third elastic member 680 is at least connected to the switching body. The third elastic member 680 is used to apply an elastic force to the switching body to cooperate with the driving assembly to move the switching body between the feeding position and the discharging position.

[0144] Reference numeral 19. The wire material moving mechanism according to reference numeral 18, wherein the driving assembly is used to apply an external force to the second switching body to make the second switching body move towards the discharging position, and the third elastic member 680 is used to apply an elastic force to the second switching body to make the second switching body move towards the feeding position; or, the driving assembly is used to apply an external force to the second switching body to make the second switching body move towards the feeding position, and the third elastic member 680 is used to apply an elastic force to the second switching body to make the second switching body move towards the discharging position.

[0145] Reference numeral 20. The wire material moving mechanism according to reference numeral 1, wherein the wire material moving mechanism further includes a first position detector 710 and a second position detector 720. The first position detector 710 is connected to the first switching body. The first position detector 710 is used to move along with the first switching body. The second position detector 720 is used to interact with the first position detector 710 to generate a feedback signal for feedbacking the switching position where the first switching body is located.

[0146] Reference numeral 21. The wire material moving mechanism according to reference numeral 20, wherein

[0147] The first position detector 710 includes a turntable and a plurality of light-shielding protrusions. The light-shielding protrusions are connected to the turntable. The second position detector 720 is a photoelectric switch. The light-shielding protrusions are used to trigger the photoelectric switch to emit a first feedback signal.

[0148] Reference numeral 22. The wire material moving mechanism according to reference numeral 1, wherein the position of the first switching body further includes a neutral position. When the first switching body is in the neutral position, all the extrusion assemblies 300 are in the disengaged position.

[0149] Reference numeral 23. A wire material moving mechanism according to reference numeral 1, wherein the position of the first switching body further includes a zero position; the wire material moving mechanism further includes: a third position detector 730 and a fourth position detector 740. The third position detector 730 is connected to the first switching body and is used to move following the first switching body. The fourth position detector 740 is used to interact with the third position detector 730 to generate a second feedback signal for feeding back that the first switching body has moved to the zero position.

[0150] Reference numeral 24. A tray box, which includes a wire material moving mechanism 10 according to any one of the foregoing reference numerals 1-23, and a box body 30. The wire material moving mechanism is connected to the box body 30, and the box body 30 is further used to accommodate trays.

[0151] Reference numeral 25. A tray box according to reference numeral 24, wherein the total support member of the wire material moving mechanism is connected to the box body 30 or is integrally formed with the box body 30.

[0152] Reference numeral 26. A tray box according to reference numeral 24, wherein the tray box further includes:

[0153] A second tray connection assembly 40, a first tray connection assembly 100 and the second tray connection assembly 40 are rotatably connected to the box body 30, and the first tray connection assembly 100 and the second tray connection assembly 40 are spaced apart and abut against the edge of the end plate of the tray 20.

[0154] Reference numeral 27. A 3D printer, which includes a wire material moving mechanism according to any one of the foregoing reference numerals 1-23, or includes a tray box according to any one of the foregoing reference numerals 24-26.

[0155] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claimed rights.

Claims

1. A wire material moving mechanism, characterized in that: The wire material moving mechanism comprises: A first tray connecting component, wherein the first tray connecting component is used to connect to the tray; A power assembly, the power assembly is used to provide power; At least two extrusion assemblies, the positions of the extrusion assemblies include an extrusion position and a disengagement position, when the extrusion assemblies are in the extrusion position, the power assembly is connected to the first tray connection assembly through the extrusion assemblies, when the extrusion assemblies are in the disengagement position, the extrusion assemblies are disengaged from the power assembly, and / or the extrusion assemblies are disengaged from the first tray connection assembly; The first switching component includes a first switching body and a first switching drive. The position of the first switching body includes at least two switching positions. The first switching drive is connected to the first switching body and is used to drive the first switching body to move between different switching positions. When the first switching body is located at different switching positions, the corresponding different extrusion components are in the extrusion position to drive different material trays to rotate.

2. The wire material moving mechanism according to claim 1, characterized in that: The wire material moving mechanism also includes: A general support, the extrusion assembly includes a wheel seat and a gear assembly, the first end of the wheel seat is rotatably connected to the general support, and the second end of the wheel seat is connected to the first switching body at least when the extrusion assembly is in the extrusion position; The gear assembly is rotatably connected to the wheel seat and is located between the first end of the wheel seat and the second end of the wheel seat; When the extrusion assembly is in the extrusion position, the power assembly is transmission-connected to the first tray connecting assembly via the gear assembly.

3. The wire moving mechanism according to claim 1, characterized in that: When the extrusion assembly is in the extrusion position, the extrusion assembly cooperates with the power assembly to clamp the wire material at the corresponding position.

4. The wire material moving mechanism according to claim 3, characterized in that: When the extrusion assembly is in the disengaged position, the extrusion assembly is at least disengaged from the power assembly.

5. The wire material moving mechanism according to claim 3, characterized in that: The wire material moving mechanism also includes: A general support, the extrusion assembly comprises a wheel seat, a gear assembly and an extrusion wheel, the first end of the wheel seat is rotatably connected to the general support, and the second end of the wheel seat is connected to the first switching body at least when the extrusion assembly is in the extrusion position; The gear assembly and the extrusion wheel are both rotatably connected to the wheel seat and are located between the first end of the wheel seat and the second end of the wheel seat; When the extrusion assembly is located at the extrusion position, the power assembly is transmission-connected with the first tray connecting assembly via the gear assembly, and the extrusion wheel cooperates with the power assembly to clamp the wire material at the corresponding position.

6. The wire material moving mechanism according to claim 2 or 5, characterized in that: The extrusion assembly further comprises a first elastic member and a first support seat, wherein the first elastic member is respectively connected to the wheel seat and the first support seat, and the first support seat is connected to the first switching body at least when the extrusion assembly is in the extrusion position.

7. The wire material moving mechanism according to claim 2 or 5, characterized in that: The gear assembly comprises a first material-removing driving gear and a second material-removing driving gear, and the first material-removing driving gear and the second material-removing driving gear are both rotatably connected to the wheel seat; When the extrusion assembly is in the extrusion position, the first material-returning driving gear is transmission-connected to the power assembly, and the second material-returning driving gear is transmission-connected to the first material tray connecting assembly.

8. The wire material moving mechanism according to claim 1, characterized in that: The first switching body includes a first linkage member and at least two acting members, the acting member is connected to the first linkage member, the acting member includes an acting end, and when the first switching body is located at different switching positions, the acting ends of different acting members act on the corresponding extrusion assembly to make the extrusion assembly be in the extrusion position.

9. The wire material moving mechanism according to claim 8, characterized in that: The first switching driving member is used to drive the first linkage member to move linearly, so that the action ends of different action members act on the corresponding extrusion components; Alternatively, the first switching drive member is used to drive the first linkage member to rotate, so that the action ends of different action members act on the corresponding extrusion components.

10. The wire material moving mechanism according to claim 8, characterized in that: The first linkage member is used for rotation, the action member is a cam, and the action end of the action member has different projection positions in the axial direction of the first linkage member.

11. The wire material moving mechanism according to claim 10, characterized in that: The projections of the active ends of at least two of the active members in the axial direction of the first linkage member are evenly distributed circumferentially around the axis of the first linkage member.

12. The wire material moving mechanism according to claim 1, characterized in that: The power assembly includes a power shaft and a driving gear, wherein the driving gear is connected to the power shaft, and when the extrusion assembly is in the extrusion position, the driving gear is connected to the extrusion assembly; The power assembly further comprises a power member, which is drivingly connected to the power shaft and is used to drive the power shaft and the driving gear to rotate.

13. The wire moving mechanism according to claim 1, characterized in that: The first material tray connecting assembly includes a connecting shaft and a rubber layer, wherein the rubber layer is wrapped around the connecting shaft and is used for frictionally abutting against an edge of an end plate of the material tray.

14. The wire material moving mechanism according to claim 3, characterized in that: The wire material moving mechanism also includes: A second switching component, the second switching component comprises a second switching body, and the position of the switching body comprises a feeding position and a withdrawing position; When the extrusion assembly is in the extrusion position and the second switching body is in the material withdrawal position, the extrusion assembly is transmission-connected to the first tray connecting assembly through the second switching body; When the extrusion assembly is in the extrusion position and the second switching body is in the feeding position, the second switching body is disengaged from the extrusion assembly and / or the second switching body is disengaged from the first tray connecting assembly, so that the extrusion assembly and the first tray connecting assembly are disengaged from the transmission connection.

15. The wire material moving mechanism according to claim 14, characterized in that: The second switching body comprises a second linkage member and a driving wheel assembly, wherein the driving wheel assembly is connected to the second linkage member, and when the second switching body is in the material withdrawing position, the driving wheel assembly is connected to the extrusion assembly and the first material tray connecting assembly, and the driving wheel assembly is used for rotation; The driving wheel assembly is rotationally connected to the second linkage member, or the driving wheel assembly rotates synchronously with the second linkage member.

16. The wire material moving mechanism according to claim 15, characterized in that: The driving wheel assembly includes a third material-returning driving gear and at least two driving rubber wheels. When the second switching body is in the material-returning position, the third material-returning driving gear is connected to the extrusion assembly, and the driving rubber wheel is connected to the first material tray connecting assembly; The third material-returning driving gear and the driving rubber wheel are limited in circumferential direction.

17. The wire material moving mechanism according to claim 15, characterized in that: The second switching component further comprises a driving component, and the driving component is used to drive the second switching body to move between the feeding position and the withdrawing position; The driving assembly comprises a second switching driving member and a second elastic member, and the output end of the second switching driving member is connected to the second linkage member through the second elastic member; The driving assembly also includes a second supporting seat and a pressure head, the output end of the second switching driving member is connected to the pressure head, the second elastic member is respectively connected to the second supporting seat and the pressure head, and the second supporting seat is connected to the second linkage member.

18. The wire material moving mechanism according to claim 17, characterized in that: The second switching component also includes at least one third elastic member, which is connected to at least the switching body. The third elastic member is used to apply elastic force to the switching body to cooperate with the driving component to move the switching body between the feeding position and the withdrawing position.

19. The wire material moving mechanism according to claim 18, characterized in that: The driving assembly is used to apply an external force to the second switching body so that the second switching body moves toward the material withdrawal position, and the third elastic member is used to apply an elastic force to the second switching body so that the second switching body moves toward the material feeding position; Alternatively, the driving assembly is used to apply an external force to the second switching body so that the second switching body moves toward the feeding position, and the third elastic member is used to apply an elastic force to the second switching body so that the second switching body moves toward the withdrawing position.

20. The wire moving mechanism according to claim 1, characterized in that: The wire moving mechanism also includes a first position detection member and a second position detection member, wherein the first position detection member is connected to the first switching body, the first position detection member is used to follow the movement of the first switching body, and the second position detection member is used to interact with the first position detection member to generate a feedback signal of the switching position of the first switching body.

21. The wire material moving mechanism according to claim 20, characterized in that: The first position detection component includes a rotating disk and a plurality of light-shielding protrusions, wherein the light-shielding protrusions are connected to the rotating disk; the second position detection component is a photoelectric switch, and the light-shielding protrusions are used to trigger the photoelectric switch to send the feedback signal.

22. The wire moving mechanism according to claim 1, characterized in that: The position of the first switching body also includes a neutral position. When the first switching body is in the neutral position, all of the extrusion components are in the disengaged position.

23. The wire moving mechanism according to claim 1, characterized in that: The position of the first switching body also includes a zero position; The wire moving mechanism also includes: a third position detection component and a fourth position detection component, the third position detection component is connected to the first switching body, the third position detection component is used to follow the movement of the first switching body, and the fourth position detection component is used to interact with the third position detection component to generate a second feedback signal to feedback that the first switching body moves to the zero position.

24. A tray box, characterized in that: comprising a wire moving mechanism as claimed in any one of claims 1 to 23, and A box body, the wire material moving mechanism is connected to the box body, and the box body is also used to accommodate the material tray.

25. The tray box according to claim 24, characterized in that The main support member of the wire moving mechanism is connected to the box body, or is integrally formed with the box body.

26. The tray box according to claim 24, characterized in that The tray box also includes: The second tray connection assembly, the first tray connection assembly and the second tray connection assembly are rotatably connected to the box body, and the first tray connection assembly and the second tray connection assembly abut against the edge of the end plate of the tray at intervals.

27. A 3D printer, characterized in that: It comprises the wire moving mechanism described in any one of claims 1 to 23, or it comprises the material tray box described in any one of claims 24 to 26.

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