Feeding and discharging equipment and 3D printer

Abstract

The invention provides feeding and discharging equipment and a 3D printer, and the feeding and discharging equipment comprises a power device which is configured to be used for driving consumables to move in the feeding direction in the feeding state and driving the consumables to move in the discharging direction in the discharging state; wherein the power device is configured to be used for being connected with the matched raw material collecting and releasing device, and therefore consumables released by the raw material collecting and releasing device are obtained in the feeding state; and the transmission device is configured to be used for being connected with the raw material collecting and releasing device, and at least part of the structure of the transmission device is configured to be used for being in transmission fit with the raw material collecting and releasing device in the material returning state of the power device, so that the raw material collecting and releasing device is driven to actively collect the consumables. The feeding and discharging equipment controls feeding and discharging through cooperation of the power device and the transmission device, the raw material collecting and releasing device and the consumables can be driven to move synchronously, the movement consistency of the raw material collecting and releasing device and the consumables is ensured, the consumables can be stably stored, and the feeding and discharging efficiency is high.

Description

Technical Field

[0001] The present application relates to the technical field of 3D (three-dimensional) printing, and in particular to material feeding and withdrawing equipment and a 3D printer. Background Art

[0002] 3D printer, also known as three-dimensional printer, is a kind of machine of cumulative manufacturing technology, that is, rapid prototyping technology. It is based on a digital model file, using special wax materials, powdered metal or plastic and other adhesive materials to print layers of adhesive materials to make three-dimensional objects. At present, 3D printers are used to manufacture products. The technology of constructing objects by printing layer by layer. The principle of 3D printer is to put data and raw materials into the 3D printer, and the machine will make the product layer by layer according to the program.

[0003] FDM (Fused Deposition Modeling) is a printing method in 3D printing. The consumables used in FDM 3D printing are generally thermoplastic materials, such as wax, ABS, nylon, etc., and the consumables are fed in filament form. The consumables are heated and melted in the nozzle, and the nozzle moves along the cross-sectional contour and filling trajectory of the part, while extruding the melted consumables. The consumables solidify quickly and condense with the surrounding materials.

[0004] The nozzle in FDM 3D printing is used to melt and extrude molten consumables. After the solid filament consumables enter the nozzle under the action of external force, they can be heated and melted into molten consumables in the nozzle, and then extruded from the nozzle outlet, layer by layer, and then print the 3D model. In the 3D printing process, it is often involved in switching the feeding and withdrawing working conditions. At this time, the motor is usually used to achieve position switching to change the conveying direction of the consumables, thereby achieving the purpose of feeding or withdrawing. Since consumables are generally stored in a raw material receiving and releasing device such as a material tray, when feeding or withdrawing, the raw material receiving and releasing device needs to move synchronously to release or store the consumables. Especially when withdrawing, if the consistency of the raw material receiving and releasing device and the consumables movement cannot be controlled, it is difficult to stably store the consumables, affecting the feeding or withdrawing efficiency. Summary of the invention

[0005] Based on this, it is necessary to provide a material feeding and withdrawing device and a 3D printer to address the above-mentioned technical problems.

[0006] The present application provides a material feeding and withdrawing device, the material feeding and withdrawing device comprising:

[0007] A power device, the power device having a feeding state and a material return state, the power device being configured to drive the consumables to move in a feeding direction in the feeding state, and to drive the consumables to move in a material return direction in the material return state; wherein the power device is configured to be connected to a matching raw material receiving and releasing device, thereby obtaining the consumables released by the raw material receiving and releasing device in the feeding state;

[0008] A transmission device is configured to be connected to the raw material receiving and releasing device, and at least a part of the structure of the transmission device is configured to cooperate with the raw material receiving and releasing device in the material withdrawing state of the power device, thereby driving the raw material receiving and releasing device to actively receive consumables.

[0009] In one of the embodiments, the transmission device includes a first transmission mechanism and a second transmission mechanism;

[0010] The first transmission mechanism is configured to be rotatably connected with the second transmission mechanism in a feeding state and to move forward with the consumables, and to be transmission-coordinated with the second transmission mechanism in a withdrawing state and to move reversely with the consumables to drive the second transmission mechanism to move;

[0011] The second transmission mechanism is configured to be connected to the raw material receiving and placing device to drive the raw material receiving and placing device to store consumables.

[0012] In one embodiment, the first transmission mechanism includes a first transmission member and a second transmission member, and a conveying channel is formed between the first transmission member and the second transmission member, wherein the conveying channel is configured to allow consumables to pass through so as to utilize the friction between the consumables and the first transmission member and the second transmission member to drive the first transmission member and the second transmission member to rotate forward or reversely;

[0013] The first transmission member is configured to be rotationally connected to the second transmission mechanism in a feeding state, and to be transmission-coordinated with the second transmission mechanism in a withdrawing state to drive the second transmission mechanism to move.

[0014] In one embodiment, the first transmission mechanism further includes a supporting member, on which the second transmission member is rotatably disposed, and the conveying channel for the consumables is formed between the second transmission member and the first transmission member.

[0015] In one embodiment, the second transmission mechanism includes a third transmission member and a fourth transmission member, and the third transmission member is connected between the fourth transmission member and the first transmission member;

[0016] The third transmission member is configured to enable the first transmission member to rotate freely relative to the fourth transmission member in a feeding state, and to enable the first transmission member to connect with the fourth transmission member and rotate synchronously in a withdrawing state;

[0017] The fourth transmission member is configured to be connected to the raw material receiving and placing device to drive the raw material receiving and placing device to store consumables.

[0018] In one embodiment, the third transmission member is a one-way bearing.

[0019] In one embodiment, the fourth transmission member includes a transmission shaft and a transmission wheel, the transmission shaft is connected to the first transmission member through the third transmission member, the transmission wheel is connected to the transmission shaft, the outer edge of the transmission wheel is in contact with the raw material receiving and releasing device, and the transmission wheel is configured to drive the raw material receiving and releasing device to rotate to rewind the consumables when the transmission shaft rotates.

[0020] In one embodiment, the material taking-up device comprises a take-up shaft and a take-up disk, the take-up shaft is configured to take up the consumable material, the take-up disk is connected to the take-up shaft and protrudes radially from the outer surface of the take-up shaft, and the take-up disk is configured to contact the outer edge of the transmission wheel;

[0021] The ratio of the diameter of the transmission wheel to the diameter of the first transmission member is greater than or equal to the ratio of the outer diameter of the winding disk to the outer diameter of the winding shaft.

[0022] In one of the embodiments, the power device includes a drive component and a monitoring component;

[0023] The driving assembly is configured to drive the consumables to move along the feeding direction in the feeding state or to drive the consumables to move along the withdrawing direction in the withdrawing state;

[0024] The monitoring component is connected to the driving component, and the monitoring component is configured to monitor driving status information of the driving component.

[0025] The present application provides a 3D printer, the 3D printer comprising:

[0026] A printing body, wherein the printing body is used to print the model;

[0027] The material feeding and withdrawing device as described in any one of the above items is configured to convey consumables to the printing body.

[0028] In the above-mentioned feeding and withdrawing equipment and 3D printer, when withdrawing materials, the power device is in a withdrawing state and provides power to drive the consumables to move toward the raw material receiving and releasing device along the withdrawing direction, and the transmission device and the raw material receiving and releasing device cooperate to drive the raw material receiving and releasing device to move, so that the raw material receiving and releasing device moves synchronously with the consumables to stably store the consumables. When feeding, the power device is in a feeding state and provides power to drive the consumables to separate from the raw material receiving and releasing device along the feeding direction, and the transmission between the transmission device and the raw material receiving and releasing device is released, at which time the raw material receiving and releasing device freely releases the consumables. Therefore, by controlling the feeding and withdrawing of materials through the cooperation of the power device and the transmission device, the raw material receiving and releasing device can be driven to move synchronously with the consumables, ensuring the consistency of the movement of the raw material receiving and releasing device and the consumables, stably storing the consumables, and the feeding and withdrawing efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the structure of the material feeding and withdrawing equipment and the raw material receiving and releasing device provided for one embodiment of the present application.

[0030] Figure 2 A schematic diagram of the structure of a material feeding and withdrawing device provided for one embodiment of the present application.

[0031] Figure 3 A schematic diagram of the structure of the material feeding and withdrawing equipment provided in one embodiment of the present application at another angle.

[0032] Figure 4 A schematic top view of a material feeding and withdrawing device provided for one embodiment of the present application.

[0033] Figure 5 For Figure 4 The AA-plane cross-sectional schematic diagram of the feeding and withdrawing equipment is shown.

[0034] Figure 6 A schematic diagram of the structure of a power device provided for one embodiment of the present application.

[0035] Figure 7 A front view schematic diagram of a power device provided in one embodiment of the present application.

[0036] Figure 8 For Figure 7 The BB-plane cross-sectional schematic diagram of the power device shown.

[0037] Fig. 9 A schematic side view of a power device provided for one embodiment of the present application.

[0038] Fig.10 For Fig. 9 The CC-plane cross-sectional schematic diagram of the power unit shown.

[0039] Figure Number:

[0040] 100. Material feeding and withdrawing equipment; 200. Raw material receiving and releasing device; 300. Consumables;

[0041] 1000, power device; 2000, transmission device; 3000, installation component; 4000, detection element;

[0042] 1110, driving member; 1111, motor; 1112, worm; 1120, first driving roller; 1130, second driving roller; 1140, driving shaft; 1150, driving gear;

[0043] 1210, first monitoring component; 1220, second monitoring component;

[0044] 1310, mounting housing; 1320, material passing portion; 1330, raw material hole; 1340, rotating shaft; 1350, elastic portion;

[0045] 2100, first transmission mechanism; 2200, second transmission mechanism;

[0046] 2110, first transmission member; 2120, second transmission member; 2130, conveying channel; 2140, supporting member; 2141, limiting hole; 2150, elastic member; 2160, pin shaft;

[0047] 2210, third transmission member; 2220, fourth transmission member; 2221, transmission shaft; 2222, transmission wheel; 2223, positioning groove;

[0048] 3100, base; 3200, raw material roller;

[0049] 210. Take-up reel; 220. Take-up drum. DETAILED DESCRIPTION

[0050] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0051] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0052] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0054] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0055] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0056] The present application provides a 3D printer, which includes a printing body and a material feeding and withdrawing device 100. The printing body is used to output a printed model. The material feeding and withdrawing device 100 is configured to deliver the consumables 300 on the material receiving and placing device 200 to the printing body for printing, or to withdraw the consumables 300 from the printing body and drive the material receiving and placing device 200 to move to synchronously store the consumables 300, thereby ensuring the consistency of the movement of the material receiving and placing device 200 and the consumables 300, thereby stably storing the consumables 300 and ensuring the feeding or withdrawing efficiency. Figures 1 to 5 As shown, the above-mentioned material feeding and withdrawing equipment 100 includes a power device 1000 and a transmission device 2000. The power device 1000 is used to provide power, thereby driving the consumables 300 to move in the feeding direction to disengage from the raw material receiving and releasing device 200 or driving the consumables 300 to move in the withdrawing direction to be stored on the raw material receiving and releasing device 200. The transmission device 2000 is used to switch the transmission matching state with the raw material receiving and releasing device 200 in the feeding state or the withdrawing state, respectively, so that in the withdrawing state, the consumables 300 are subjected to the extrusion force of the power device 1000, and the consumables are withdrawn from the printing body (not shown). Since the consumables 300 are continuously subjected to the extrusion force of the power device 1000, the transmission device 2000 is driven to move, and the raw material receiving and releasing device 200 is driven to move by the transmission device 2000, thereby making the raw material receiving and releasing device 200 move synchronously with the consumables 300, so that the consumables 300 are synchronously stored on the raw material receiving and releasing device 200, thereby stably storing the consumables 300.

[0057] In one embodiment, the raw material receiving and releasing device 200 includes a reel 210 and a reel 220, the reel 210 is configured to be used for reeling the consumable material 300, the reel 220 is connected to the reel 210 and protrudes from the outer surface of the reel 210 in the radial direction of the reel 210, and the reel 220 is configured to be in contact with the transmission device 2000. Thus, when the transmission device 2000 moves, the reel 220 can move with the transmission device 2000, thereby driving the reel 210 to rotate to reel the consumable material 300. It should also be noted that, in addition to being used in the field of 3D printing, the feeding and unloading device 100 of the present application can also be used in industries such as textiles and additive manufacturing to achieve feeding and unloading operations.

[0058] Continue reading Figures 1 to 5 As shown, the power device 1000 has a feeding state and a withdrawing state, and the power device 1000 is configured to drive the consumables 300 to move in the feeding direction in the feeding state, and to drive the consumables 300 to move in the withdrawing direction in the withdrawing state; wherein the power device 1000 is also configured to be connected to a matching raw material receiving and placing device 200, thereby obtaining the consumables 300 released by the raw material receiving and placing device 200 in the feeding state. In the embodiment of the present application, the feeding direction refers to the movement direction of the consumables 300 when they are stored in the raw material receiving and placing device 200, and the withdrawing direction refers to the movement direction of the consumables 300 when they are separated from the raw material receiving and placing device 200.

[0059] The transmission device 2000 is configured to be connected to the raw material receiving and placing device 200. For example, the transmission device 2000 is configured to contact the edge of the winding disk 220. When the transmission device 2000 moves, the winding disk 220 and the winding shaft 210 can be driven to move by friction to wind up the consumables 300. Specifically, at least part of the structure of the transmission device 2000 is configured to cooperate with the raw material receiving and placing device 200 in the material-retracting state of the power device 1000, thereby driving the raw material receiving and placing device 200 to actively store the consumables 300, and to release the transmission from the raw material receiving and placing device 200 in the material-feeding state of the power device 1000.

[0060] According to the feeding and withdrawing equipment 100 of the embodiment of the present application, when withdrawing materials, the power device 1000 is in the withdrawing state and provides power to drive the consumables 300 to move toward the raw material receiving and placing device 200 along the withdrawing direction, and the transmission device 2000 and the raw material receiving and placing device 200 are transmission-coordinated to drive the raw material receiving and placing device 200 to move, so that the raw material receiving and placing device 200 moves synchronously with the consumables 300 to stably store the consumables 300. When feeding materials, the power device 1000 is in the feeding state and provides power to drive the consumables 300 to separate from the raw material receiving and placing device 200 along the feeding direction, and the transmission between the transmission device 2000 and the raw material receiving and placing device 200 is released, and at this time, the raw material receiving and placing device 200 is free to release the consumables 300. Therefore, by cooperating between the power device 1000 and the transmission device 2000 to control the feeding and withdrawing of materials, the raw material receiving and releasing device 200 and the consumables 300 can be driven to move synchronously, ensuring the consistency of the movement of the raw material receiving and releasing device 200 and the consumables 300, and the feeding and withdrawing efficiency is high, which is suitable for switching the feeding scene of different types of consumables 300. For example, in multi-color 3D printing technology, multiple consumables 300 can be efficiently switched in one printing process, so as to use consumables 300 of multiple colors to print colorful objects.

[0061] In one embodiment, the feeding and withdrawing device 100 further includes a mounting assembly 3000, and the mounting assembly 3000 includes a base 3100 and a raw material roller 3200. The base 3100 is formed with an arc structure to facilitate matching with the circular shape of the raw material receiving and placing device 200, and the base 3100 is also used to install components such as the power device 1000 and the transmission device 200. The raw material roller 3200 is connected to the base 3100 through a bearing, and is used to carry the raw material receiving and placing device 200, for example, tangent to the edge of the receiving tray to reduce resistance, so that the raw material receiving and placing device 200 can rotate freely relative to the base 3100 when feeding or withdrawing materials.

[0062] See also Figures 2 to 5 As shown, in one embodiment, the transmission device 2000 includes a first transmission mechanism 2100 and a second transmission mechanism 2200; the first transmission mechanism 2100 is configured to be rotatably connected with the second transmission mechanism 2200 in the feeding state and move forward with the consumables 300, and to be transmission-coordinated with the second transmission mechanism 2200 in the unloading state and move reversely with the consumables 300 to drive the second transmission mechanism 2200 to move; the second transmission mechanism 2200 is configured to be connected with the raw material receiving and placing device 200 to drive the raw material receiving and placing device 200 to store the consumables 300. Therefore, when unloading, the first transmission mechanism 2100 will move with the consumables 300 to drive the second transmission mechanism 2200 to move, and then the second transmission mechanism 2200 drives the raw material receiving and placing device 200 to move synchronously with the consumables 300, so as to ensure the consistency of the movement of the raw material receiving and placing device 200 and the consumables 300, and improve the storage efficiency of the consumables 300.

[0063] For example, when the material receiving and releasing device 200 includes the winding shaft 210 and the winding disk 220 of the above-mentioned embodiment, the second transmission mechanism 2200 contacts the edge of the winding disk 220, so that the second transmission mechanism 2200 can drive the winding disk 220 and the winding shaft 210 to rotate and wind up the consumables 300. Specifically, in the material unwinding state, the first transmission mechanism 2100 and the second transmission mechanism 2200 are in transmission cooperation, and the consumables 300 move in the material unwinding direction under the driving action of the power device 1000. At this time, the first transmission mechanism 2100 will move in the opposite direction with the consumables 300 to drive the second transmission mechanism 2200 to move, and then drive the winding disk 220 and the winding shaft 210 to rotate through the second transmission mechanism 2200, so as to synchronously wind up the consumables 300, so as to ensure the consistency of winding. During feeding, the first transmission mechanism 2100 and the second transmission mechanism 2200 can rotate freely, that is, the transmission between the first transmission mechanism 2100 and the second transmission mechanism 2200 is released, and the consumables 300 move along the feeding direction under the driving action of the power device 1000. At this time, the first transmission mechanism 2100 will move forward with the consumables 300, and at the same time, the consumables 300 will drive the winding shaft 210 to rotate, thereby driving the second transmission mechanism 2200 to move through the winding disk 220. Since the transmission between the first transmission mechanism 2100 and the second transmission mechanism 2200 is released, the movement processes of the first transmission mechanism 2100 and the second transmission mechanism 2200 do not interfere with each other, so as to ensure normal feeding.

[0064] As mentioned above, the transmission cooperation mode between the first transmission mechanism 2100 and the consumables 300 should at least meet the requirements of forward movement with the consumables 300 in the feeding state, and reverse movement with the consumables 300 in the unloading state. In one embodiment, the first transmission mechanism 2100 includes a first transmission member 2110 and a second transmission member 2120, and a conveying channel 2130 is formed between the first transmission member 2110 and the second transmission member 2120, wherein the conveying channel 2130 is configured to allow the consumables 300 to pass through so as to drive the first transmission member 2110 and the second transmission member 2120 to rotate forward or reversely by utilizing the friction between the consumables 300 and the first transmission member 2110 and the second transmission member 2120; the first transmission member 2110 is configured to be rotationally connected with the second transmission mechanism 2200 in the feeding state, and to cooperate with the second transmission mechanism 2200 in the unloading state to drive the second transmission mechanism 2200 to move. In this embodiment, the power device 1000 can drive the consumables 300 forward or backward, and at the same time, the consumables 300 drive the first transmission member 2110 and the second transmission member 2120 to rotate, thereby driving the second transmission mechanism 2200 to move and drive the raw material receiving and releasing device 200 to move. Therefore, the same power source, i.e., the power device 1000, can drive the consumables 300 to be transported, and at the same time, the consumables 300 provide power to drive the raw material receiving and releasing device 200 to move synchronously with the consumables 300, so that the power loss is small, and the consistency of the movement of the raw material receiving and releasing device 200 and the consumables 300 can be ensured, and the feeding and withdrawing efficiency is high.

[0065] For example, see Figures 2 to 5 As shown, the first transmission member 2110 is configured as a rotating wheel such as a rubber wheel, and correspondingly, the second transmission member 2120 is also configured as a rotating wheel such as a bearing member, thereby utilizing the first transmission member 2110 and the second transmission member 2120 to cooperate to squeeze and limit the consumable 300, and rotate with the movement of the consumable 300 when the consumable 300 is transported, thereby reducing the movement resistance of the consumable 300, so that the first transmission mechanism 2100 can move with the consumable 300 to drive the second transmission mechanism 2200 to move accordingly.

[0066] In one embodiment, the first transmission mechanism 2100 includes a support member 2140, which can be connected to the base 3100 via a pin 2160, and the second transmission member 2120 is rotatably disposed on the support member 2140. A conveying channel 2130 for the consumables 300 is formed between the second transmission member 2120 and the first transmission member 2110, further ensuring the stability of the conveying of the consumables 300.

[0067] In one embodiment, the first transmission mechanism 2100 further includes an elastic member 2150, the second transmission member 2120 is rotatably disposed on the support member 2140, the elastic member 2150 is connected to the support member 2140, and the elastic member 2150 is configured to apply force to the support member 2140 so that the support member 2140 drives the second transmission member 2120 to move toward the first transmission member 2110 to form the conveying channel 2130. For example, continue to refer to Figures 2 to 5 As shown, the support member 2140 is rotatably connected to the base 3100 through the pin 2160, and the second transmission member 2120 is rotatably arranged on the support member 2140. The elastic member 2150 may be a spring, and the two ends of the elastic member 2150 are respectively connected to the base 3100 and the support member 2140. Thus, the elastic force of the elastic member 2150 is used to apply force to the support member 2140 so that the support member 2140 drives the second transmission member 2120 to move toward the first transmission member 2110, so that the second transmission member 2120 and the first transmission member 2110 cooperate to extrude the consumable 300, thereby ensuring that the friction between the consumable 300 and the first transmission member 2110 and the second transmission member 2120 is large enough to meet the requirement of driving the first transmission member 2110 and the second transmission member 2120 to rotate by the friction force.

[0068] As mentioned above, the second transmission mechanism 2200 is configured to be capable of transmission cooperation with the first transmission mechanism 2100 and the raw material receiving and placing device 200. In one embodiment, the second transmission mechanism 2200 includes a third transmission member 2210 and a fourth transmission member 2220, and the third transmission member 2210 is connected between the fourth transmission member 2220 and the first transmission member 2110; the third transmission member 2210 is configured to enable the first transmission member 2110 to rotate freely relative to the fourth transmission member 2220 in the feeding state, and to enable the first transmission member 2110 to be connected with the fourth transmission member 2220 and rotate synchronously in the unloading state; the fourth transmission member 2220 is configured to be connected with the raw material receiving and placing device 200 to drive the raw material receiving and placing device 200 to store the consumables 300. Therefore, the second transmission mechanism 2200 is split into a third transmission member 2210 and a fourth transmission member 2220 that are connected to each other, so that the third transmission member 2210 can be used to cooperate with the first transmission mechanism 2100 for transmission, and the fourth transmission member 2220 can be used to cooperate with the raw material receiving and releasing device 200 for transmission, so as to facilitate the structural design of the third transmission member 2210 and the fourth transmission member 2220 respectively, improve the transmission stability, and enable the second transmission mechanism 2200 assembled by the third transmission member 2210 and the fourth transmission member 2220 to adapt to more complex installation scenarios.

[0069] For example, in one embodiment, the third transmission member 2210 is a one-way bearing, and the first transmission member 2110 is connected to the fourth transmission member 2220 via a one-way bearing. At this time, when feeding, the fourth transmission member 2220 will not rotate with the first transmission member 2110, and when unloading, since the first transmission member 2110 will rotate in the opposite direction with the movement of the consumables 300, the fourth transmission member 2220 will rotate with the first transmission member 2110, so as to meet the transmission matching requirements between the first transmission member 2110 and the fourth transmission member 2220.

[0070] Continue reading Figures 2 to 5 As shown, in one embodiment, the fourth transmission member 2220 includes a transmission shaft 2221 and a transmission wheel 2222, the transmission shaft 2221 is connected to the first transmission member 2110 through the third transmission member 2210, the transmission wheel 2222 is connected to the transmission shaft 2221, the outer edge of the transmission wheel 2222 is in contact with the raw material receiving and placing device 200, and the transmission wheel 2222 is configured to drive the raw material receiving and placing device 200 to rotate when the transmission shaft 2221 rotates to reel in the consumables 300. Thus, in the material unloading state, the first transmission member 2110 can drive the transmission shaft 2221 to rotate through the third transmission member 2210, thereby driving the transmission wheel 2222 to rotate, and at this time, the raw material receiving and placing device 200 can rotate with the transmission wheel 2222 to synchronously reel in the consumables 300.

[0071] Optionally, in one embodiment, the transmission wheel 2222 is provided with a positioning groove 2223, and a plurality of positioning grooves 2223 can be provided and evenly distributed along the circumference of the transmission wheel 2222. The feeding and withdrawing device 100 also includes a detection element 4000, which is provided on the base 3100. For example, the detection element 4000 can be selected as a slot switch or a U-shaped switch. When the transmission wheel 2222 rotates, the detection element 4000 can detect the positioning groove 2223 to obtain the rotation speed and mileage of the transmission wheel 2222, and correspondingly obtain the rotation speed and mileage of the raw material receiving and releasing device 200, so as to judge the feeding or withdrawing mileage to ensure the accuracy of feeding and withdrawing.

[0072] Further, when the material receiving and placing device 200 includes a reel 210 and a reel 220, in the material unwinding state, in order to ensure that the consumables 300 are timely rewound onto the reel 210, the speed at which the material receiving and placing device 200 recycles the consumables 300 should be controlled to be greater than the speed at which the power device 1000 conveys the consumables 300 to the material receiving and placing device 200. In one embodiment, the ratio of the diameter of the transmission wheel 2222 to the diameter of the first transmission member 2110 is greater than or equal to the ratio of the outer diameter of the reel 220 to the outer diameter of the reel 210. At this time, when rewinding the consumables 300, the speed at which the reel 210 rewinds the consumables 300 can be maintained greater than the speed at which the power device 1000 drives the consumables 300 to unwind the material, so as to ensure that the returned consumables 300 can be timely wound onto the reel 210.

[0073] See also Figures 6 to 10 As shown, in one embodiment, the power device 1000 includes a driving component and a monitoring component; the driving component is configured to drive the consumable 300 to move in a feeding direction in a feeding state or to drive the consumable 300 to move in a withdrawing direction in a withdrawing state; the monitoring component is connected to the driving component, and the monitoring component is configured to monitor the driving state information of the driving component.

[0074] For example, in one embodiment, the driving assembly includes a driving member 1110, a first driving roller 1120, a second driving roller 1130 and a driving shaft 1140, the driving member 1110 is connected to the driving shaft 1140 to drive the driving shaft 1140 to rotate, the first driving roller 1120 is connected to the driving shaft 1140, the second driving roller 1130 is rotatably arranged, and the second driving roller 1130 cooperates with the first driving roller 1120 to clamp the consumable 300; wherein the first driving roller 1120 is configured to rotate with the driving shaft 1140 to cooperate with the second driving roller 1130 to extrude the consumable 300 so that the consumable 300 moves along the feeding direction or the withdrawing direction.

[0075] In one embodiment, the driving member 1110 includes a motor 1111 and a worm 1112. The output end of the motor 1111 is in transmission cooperation with the drive shaft 1140 through the worm 1112, for example, meshing with each other, to provide power to drive the drive shaft 1140 to rotate, thereby driving the consumable 300 to move. For example, in one embodiment, when the motor 1111 controls the worm 1112 to rotate counterclockwise, the consumable 300 is fed, and when the motor 1111 controls the worm 1112 to rotate clockwise, the consumable 300 is withdrawn.

[0076] Continue reading Figures 6 to 10As shown, a driving gear 1150 is provided around the driving shaft 1140, and the driving gear 1150 is meshed with the worm 1112, so that the motor 1111 can provide power to the driving gear 1150 and the driving shaft 1140 through the worm 1112, thereby driving the first driving roller 1120 to rotate to drive the consumables 300 to move. The second driving roller 1130 can be configured as a bearing structure so that it can rotate freely, and is used to cooperate with the first driving roller 1120 to convey the consumables 300.

[0077] In one embodiment, the power device 1000 further includes a support assembly, which includes a mounting housing 1310, a material passing portion 1320, a rotating shaft 1340, and an elastic portion 1350. The material passing portion 1320 is disposed inside the mounting housing 1310 and is rotatably connected to the mounting housing 1310 through the rotating shaft 1340. A raw material hole 1330 for guiding the consumables 300 to pass through is provided inside the material passing portion 1320. The side wall of the material passing portion 1320 is configured as a structural form adapted to the first driving roller 1120 and the second driving roller 1130 so that the first driving roller 1120 and the second driving roller 1130 are relatively arranged on both sides of the raw material hole 1330. For example, the elastic portion 1350 may be a compression spring. The elastic portion 1350 is connected between the feed portion 1320 and the mounting shell 1310, and is used to apply force to the feed portion 1320 to make the consumables 300 in the raw material hole 1330 in close contact with the first driving roller 1120, ensuring that the consumables 300 can be driven to move when the first driving roller 1120 and the second driving roller 1130 rotate.

[0078] In one embodiment, the monitoring component includes a first monitoring component 1210 and a second monitoring component 1220 , and the first monitoring component 1210 and the second monitoring component 1220 are configured to monitor driving status information of the driving component.

[0079] For example, the first monitoring component 1210 can be a micro switch, which is arranged on the side of the material transfer portion 1320 away from the elastic portion 1350, so as to detect whether there is consumable material 300 in the material transfer portion 1320, thereby judging the conveying status of the consumable material 300 to confirm whether feeding and returning the material have started or ended.

[0080] For example, the second monitoring element 1220 is connected to the second driving roller 1130, and the second monitoring element 1220 is configured to monitor the rotation state information of the second driving roller 1130. Figure 8As shown, the second monitoring component 1220 may include a Hall sensor and a magnetic ring, which are used to connect with the second drive roller 1130. The Hall sensor is used to detect the rotation of the magnetic ring to obtain the rotation information of the second drive roller 1130, such as the rotation speed and time, so that the conveying speed and mileage of the consumable 300 moving with the second drive roller 1130 can be calculated, so as to facilitate the subsequent calculation of the conveying loss rate of the consumable 300 and ensure the accuracy of the feed amount. At the same time, it can also be determined whether the consumable 300 is blocked.

[0081] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A material feeding and withdrawing device (100), characterized in that: The material feeding and withdrawing equipment (100) comprises: A power device (1000), the power device (1000) having a feeding state and a withdrawing state, the power device (1000) being configured to drive the consumables (300) to move along a feeding direction in the feeding state, and to drive the consumables (300) to move along a withdrawing direction in the withdrawing state; wherein the power device (1000) is configured to be connected to a matching raw material receiving and releasing device (200), thereby obtaining the consumables (300) released by the raw material receiving and releasing device (200) in the feeding state; A transmission device (2000), the transmission device (2000) being configured to be connected to the raw material receiving and placing device (200), and at least a portion of the structure of the transmission device (2000) being configured to cooperate with the raw material receiving and placing device (200) in transmission when the power device (1000) is in a material-returning state, thereby driving the raw material receiving and placing device (200) to actively store consumables (300).

2. The material feeding and withdrawing device (100) according to claim 1, characterized in that: The transmission device (2000) comprises a first transmission mechanism (2100) and a second transmission mechanism (2200); The first transmission mechanism (2100) is configured to be rotationally connected with the second transmission mechanism (2200) in a feeding state and to move forward with the consumable (300), and to be transmission-coordinated with the second transmission mechanism (2200) in a withdrawing state and to move reversely with the consumable (300) to drive the second transmission mechanism (2200) to move; The second transmission mechanism (2200) is configured to be connected to the raw material receiving and placing device (200) so as to drive the raw material receiving and placing device (200) to store consumables (300).

3. The material feeding and withdrawing device (100) according to claim 2, characterized in that: The first transmission mechanism (2100) comprises a first transmission member (2110) and a second transmission member (2120), wherein a conveying channel (2130) is formed between the first transmission member (2110) and the second transmission member (2120), wherein the conveying channel (2130) is configured to allow the consumable (300) to pass through so as to utilize the friction between the consumable (300) and the first transmission member (2110) and the second transmission member (2120) to drive the first transmission member (2110) and the second transmission member (2120) to rotate in a forward or reverse direction; The first transmission member (2110) is configured to be rotationally connected to the second transmission mechanism (2200) in a feeding state, and to cooperate with the second transmission mechanism (2200) in a discharging state to drive the second transmission mechanism (2200) to move.

4. The material feeding and withdrawing device (100) according to claim 3, characterized in that: The first transmission mechanism (2100) further comprises a support member (2140), on which the second transmission member (2120) is rotatably arranged, and between the second transmission member (2120) and the first transmission member (2110) a conveying channel (2130) for the consumable material (300) is formed.

5. The material feeding and withdrawing device (100) according to claim 3, characterized in that: The second transmission mechanism (2200) comprises a third transmission member (2210) and a fourth transmission member (2220), wherein the third transmission member (2210) is connected between the fourth transmission member (2220) and the first transmission member (2110); The third transmission member (2210) is configured to enable the first transmission member (2110) to rotate freely relative to the fourth transmission member (2220) in a feeding state, and to enable the first transmission member (2110) to be connected with the fourth transmission member (2220) and to rotate synchronously in a withdrawing state; The fourth transmission member (2220) is configured to be connected to the raw material receiving and placing device (200) so as to drive the raw material receiving and placing device (200) to store consumables (300).

6. The material feeding and withdrawing device (100) according to claim 5, characterized in that: The third transmission member (2210) is a one-way bearing.

7. The material feeding and withdrawing device (100) according to claim 5, characterized in that: The fourth transmission member (2220) comprises a transmission shaft (2221) and a transmission wheel (2222); the transmission shaft (2221) is connected to the first transmission member (2110) via the third transmission member (2210); the transmission wheel (2222) is connected to the transmission shaft (2221); the outer edge of the transmission wheel (2222) is in contact with the raw material receiving and releasing device (200); the transmission wheel (2222) is configured to drive the raw material receiving and releasing device (200) to rotate when rotating with the transmission shaft (2221) to reel in the consumable material (300).

8. The material feeding and withdrawing device (100) according to claim 7, characterized in that: The material taking-up device (200) comprises a take-up shaft (210) and a take-up disk (220), wherein the take-up shaft (210) is configured to take up the consumable material (300), the take-up disk (220) is connected to the take-up shaft (210) and protrudes radially from the outer surface of the take-up shaft (210), and the take-up disk (220) is configured to contact the outer edge of the transmission wheel (2222); The ratio of the diameter of the transmission wheel (2222) to the diameter of the first transmission member (2110) is greater than or equal to the ratio of the outer diameter of the winding disk (220) to the outer diameter of the winding shaft (210).

9. The material feeding and withdrawing device (100) according to any one of claims 1 to 8, characterized in that: The power device (1000) comprises a driving component and a monitoring component; The driving assembly is configured to drive the consumable (300) to move along a feeding direction in a feeding state or to drive the consumable (300) to move along a withdrawing direction in a withdrawing state; The monitoring component is connected to the driving component, and the monitoring component is configured to monitor driving status information of the driving component.

10. A 3D printer, characterized in that: The 3D printer comprises: A printing body, wherein the printing body is used to print the model; The material feeding and withdrawing device (100) according to any one of claims 1 to 9, wherein the material feeding and withdrawing device (100) is configured to convey consumables (300) to the printing body.

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