Solid-state additive manufacturing method with feedstock connection

Abstract

The application provides a solid additive manufacturing method for connecting a feeding material, which is used for conveying a consumable rod to a spindle rotating mechanism in a continuous feeding device, one end of the consumable rod is provided with a first positioning part, and the other end is provided with a second positioning part matched with the first positioning part, the continuous feeding device comprises a feeding mechanism, a pressing mechanism, a high-position lifting mechanism and a low-position lifting mechanism, and the solid additive manufacturing method can continuously feed in the process of additive manufacturing, so that the manufacturing efficiency of additive manufacturing and the overall performance of the solid additive manufacturing component can be improved.

Description

Technical Field

[0001] This application relates to the field of additive manufacturing technology, and more specifically to a solid additive manufacturing method for connecting feedstock. Background Technology

[0002] Additive manufacturing technology has the advantages of reducing processing steps, shortening processing cycles, and quickly and precisely manufacturing parts of any complex shape. Therefore, it is widely used in fields such as aviation, aerospace, medical, automotive, machinery, chemical, energy, and art.

[0003] Solid-state additive manufacturing avoids defects such as cracks and porosity, as well as impurities like intermetallic compounds, that are prone to occur in over-melting-point additive manufacturing techniques (such as laser selective remelting and arc additive manufacturing) because the processing does not reach the material's melting point. Solid-state additive manufacturing is highly efficient, does not require a special protective atmosphere, and is particularly suitable for manufacturing large-size structural components. During processing, the material undergoes plastic deformation flow, and through dynamic recrystallization and extremely high strain rates, grain refinement and impurity phase fragmentation are achieved, resulting in components with excellent mechanical properties and corrosion resistance, thus demonstrating broad application prospects.

[0004] However, in related technologies, such as friction stir or friction deposition solid-state additive manufacturing, a discontinuous method is still used. When large-sized raw materials are consumed, additive manufacturing needs to be stopped, replaced with new raw materials, and then manufacturing can continue. Furthermore, during continued manufacturing, milling tools are required to mill the ends of the coating prepared from the previous raw material before joining the subsequent coatings. This process of replacing raw materials and external milling reduces the manufacturing efficiency of solid-state additive manufacturing, and the mechanical properties and corrosion resistance of the joined area are slightly degraded compared to the middle of the coating, limiting the overall performance of the solid-state additive-manufactured components. If the milling step is not used, and the second raw material rod is directly joined at the end of the first rod, it is highly susceptible to porosity due to insufficient plastic deformation flow, severely affecting the performance of the manufactured components. Summary of the Invention

[0005] This application provides a solid additive manufacturing method with continuous feeding, which enables continuous feeding of consumable rods during the additive manufacturing process, allowing the connection of the front and rear consumable rods to form a complete coating, thereby improving the manufacturing efficiency of additive manufacturing and the overall performance of solid additive manufactured components.

[0006] This application provides a solid additive manufacturing method with a continuous feed, wherein the solid additive manufacturing method is used to feed a consumable rod to a spindle rotation mechanism in a continuous feeding device, wherein one end of the consumable rod is provided with a first positioning part, and the other end is provided with a second positioning part that cooperates with the first positioning part;

[0007] The continuous feeding device includes a feeding mechanism, a pressing mechanism, a high-level lifting mechanism, and a low-level lifting mechanism. The solid-state additive manufacturing method includes the following steps:

[0008] S10: Place multiple consumable bars in the feeding mechanism, and provide the consumable bars to the high-position lifting mechanism located in the third clamping position, the low-position lifting mechanism located in the first clamping position, and the main shaft rotation mechanism, wherein the consumable bars in the high-position lifting mechanism are connected end to end with the consumable bars in the low-position lifting mechanism and the main shaft rotation mechanism through the first positioning part and the second positioning part;

[0009] S20: The pressing mechanism delivers the consumable rods to the high-position lifting mechanism in a predetermined order, and cooperates with the high-position lifting mechanism to connect the consumable rods output by the pressing mechanism with the consumable rods in the high-position lifting mechanism end to end through the first positioning part and the second positioning part.

[0010] S30: The low-position lifting mechanism cooperates with the top-pressing mechanism and the high-position lifting mechanism to drive the consumable bar to move down until the low-position lifting mechanism moves to the second limit position;

[0011] S40: The high-position lifting mechanism clamps the consumable bar, the low-position lifting mechanism releases the consumable bar and moves upward, the high-position lifting mechanism drives the clamped consumable bar to push the released consumable bar of the low-position lifting mechanism to continue to move downward until it moves to the fifth limit position, and the low-position lifting mechanism moves to the first clamping position.

[0012] S50: The low-position lifting mechanism clamps the consumable bar held by the high-position lifting mechanism, the high-position lifting mechanism releases the consumable bar and moves upward, and the low-position lifting mechanism drives the clamped consumable bar to continue to move downward.

[0013] S60: When the low-position lifting mechanism moves to near the second limit position, the high-position lifting mechanism moves to the third clamping position to clamp the consumable bar conveyed by the top pressing mechanism;

[0014] S70: Repeat steps S40 to S60.

[0015] According to any of the foregoing embodiments of the first aspect of this application, step S30 includes the following steps:

[0016] S31: The high-position lifting mechanism opens so that its inner diameter is larger than the outer diameter of the consumable rod;

[0017] S32: The low-position lifting mechanism clamps and drives the consumable bar to move down until the low-position lifting mechanism moves to the second limit position.

[0018] According to any of the foregoing embodiments of the first aspect of this application, the continuous feeding device further includes a support mechanism, which is disposed between the high-position lifting mechanism and the low-position lifting mechanism;

[0019] Step S30 further includes the following step:

[0020] S33: The support mechanism radially supports the consumable rod and moves with the movement of the low-position lifting mechanism and the high-position lifting mechanism;

[0021] Preferably, the support mechanism is located at the middle position between the high-position lifting mechanism and the low-position lifting mechanism.

[0022] According to any of the foregoing embodiments of the first aspect of this application, step S40 includes:

[0023] S41: The high-position lifting mechanism clamps the consumable bar, the low-position lifting mechanism releases the consumable bar and moves upward with the support mechanism, and the high-position lifting mechanism and the top pressing mechanism drive the clamped consumable bar to push the consumable bar released by the low-position lifting mechanism to continue to move downward;

[0024] S42: The high-position lifting mechanism moves downward to the fifth limit position, and the low-position lifting mechanism moves upward to the first clamping position.

[0025] According to any of the foregoing embodiments of the first aspect of this application, step S50 includes:

[0026] S: The low-position lifting mechanism clamps the consumable bar held by the high-position lifting mechanism;

[0027] S: The high-position lifting mechanism releases the consumable bar and moves upward with the support mechanism, wherein the upward movement speed of the support mechanism is less than the upward movement speed of the high-position lifting mechanism;

[0028] S: The low-position lifting mechanism cooperates with the top pressing mechanism to drive the clamped consumable bar to continue to move downward.

[0029] According to any of the foregoing embodiments of the first aspect of this application, step S60 includes:

[0030] S61: When the low-position lifting mechanism moves to near the second limit position, the high-position lifting mechanism moves upward to the third clamping position to clamp the consumable bar conveyed by the top pressing mechanism;

[0031] S62: The supporting mechanism and the high-position lifting mechanism move in the same direction;

[0032] S63: The top pressing mechanism moves upward.

[0033] According to any of the foregoing embodiments of the first aspect of this application, in step S63, the moving speed of the top pressing mechanism is greater than the moving speed of the high-position lifting mechanism.

[0034] According to any of the foregoing embodiments of the first aspect of this application, the continuous feeding device further includes a blocking mechanism, which includes a plurality of blocking members. When the blocking mechanism is in a blocking state, the consumable bar is blocked within the feeding mechanism; when the blocking mechanism is in a non-blocking state, the consumable bar can be pushed out of the feeding mechanism to convey the consumable bar downward to the high-level lifting mechanism.

[0035] According to any of the foregoing embodiments of the first aspect of this application, step S20 includes:

[0036] S21: Set multiple blocking components to a non-blocking state and push out the consumable bar from the feeding mechanism;

[0037] S22: The pressing mechanism moves the consumable bar down and conveys it to the high-level lifting mechanism. When the pressing mechanism passes the blocking member, it sets the corresponding blocking member to the blocking state.

[0038] S23: Cooperating with the high-position lifting mechanism to connect the consumable rod output by the top pressing mechanism with the consumable rod inside the high-position lifting mechanism.

[0039] According to any of the foregoing embodiments of the first aspect of this application, step S63 includes:

[0040] S631: The pressing mechanism moves upward and passes through the blocking members in sequence. When passing through each blocking member, the blocking member to be passed through is first set to a non-blocking state, and after passing through, the blocking member is set to a blocking state, so that the pressing mechanism moves upward to the topmost blocking member.

[0041] The solid additive manufacturing method with continuous feeding provided in this application embodiment can continuously feed materials during the additive manufacturing process, thereby improving the manufacturing efficiency of additive manufacturing and the overall performance of solid additive manufactured components.

[0042] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0043] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0044] Figure 1 This is a schematic flowchart of a solid additive manufacturing method provided in some embodiments of this application.

[0045] Figures 2 to 8 A schematic diagram illustrating the working principle of a continuous feeding device provided for some embodiments of this application.

[0046] Figure 9 This is a schematic diagram of the structure of a continuous feeding device provided in some embodiments of this application.

[0047] Figure 10 This is a schematic diagram of the feeding mechanism and the pressing mechanism of a continuous feeding device provided in some embodiments of this application.

[0048] Figure 11 for Figure 10 A schematic diagram of the material feeding mechanism.

[0049] Figure 12 This is a schematic diagram of the top pressing mechanism of a continuous feeding device provided in some embodiments of this application.

[0050] Figure 13 for Figure 12 A schematic diagram of the conveying pipe.

[0051] Figure 14 for Figure 13 Another structural diagram from a different angle.

[0052] Figure 15 for Figure 12 A schematic diagram of the middle and lower pressure mechanism.

[0053] Figure 16 for Figure 9 A schematic diagram of the mid-to-high-level lifting mechanism.

[0054] Figure 17 for Figure 16 A schematic diagram of the lifting component.

[0055] Figure 18 for Figure 16 A schematic diagram of the structure of the lubrication section and the engagement section.

[0056] Figure 19 for Figure 16 A schematic diagram of the connection structure between the rotating component and the clamping component.

[0057] Figure 20 for Figure 19 A schematic diagram of the structure of the middle clamping component.

[0058] Figure 21 for Figure 19 A schematic diagram of the middle clamping part.

[0059] Figure 22 for Figure 9 A cross-sectional view of a high-position lifting mechanism according to another embodiment.

[0060] Figure 23 This is a schematic diagram of the structure of a continuous feeding device provided in some other embodiments of this application.

[0061] The reference numerals in the detailed embodiments are as follows:

[0062] 100 - Continuous feeding device;

[0063] 10-Material supply mechanism;

[0064] 11-Accommodating component, 111-Accommodating space, 112-First frame, 113-Second frame, 114-Connecting frame;

[0065] 12-Pushing component, 121-Connecting part, 122-First guide part, 123-Pushing part, 124-Driver;

[0066] 20 - Top pressure mechanism;

[0067] 21-Conveying pipe, 211-Inlet, 212-Opening, 213-Notch;

[0068] 22-Pressing mechanism, 221-Pressing part, 222-Driver, 223-Second guide part, 224-Limiting part, 226-Elastic element;

[0069] 23-Blocking mechanism; 231-Blocking component;

[0070] 310 - High-position lifting mechanism;

[0071] 311-Lifting component, 3111-Lifting arm, 3111a-First surface, 3111b-Second surface, 3111c-Through hole, 3111d-Mounting hole, 3111e-Annular groove, 3112-Lubricating component, 3113-Engaging part;

[0072] 312-Rotating component, 3121-Rotating shaft, 3121a-First end, 3121b-Second end, 3122-Transmission wheel, 3123-First rolling bearing, 3124-First thrust bearing;

[0073] 313-Clamping component, 3131-Support part, 3131a-First through hole, 3131b-First pin hole, 3132-Clamping part, 3132a-Drive end, 3132b-Clamping end, 3132c-Second pin hole, 3132d-Fourth pin hole, 3133-Base, 3134-First pin, 3135-Transmission block, 3135a-Second through hole, 3135b-Snap hole, 3135c-Third pin hole, 3136-Second pin, 3137-Second rolling bearing, 3138-Second thrust bearing;

[0074] 314-Telescopic component, 3141-Lubricating sleeve, 3142-Telescopic rod, 3143-Fixing bracket;

[0075] 315 - Second drive component,

[0076] 316-First driving component, 3161-Guide rail, 3162-Second slider, 3163-Second lead screw;

[0077] 317 - Cylinder;

[0078] 320 - Low-position lifting mechanism;

[0079] 40 - Supporting structures;

[0080] 50 - Spindle rotation mechanism;

[0081] 200 - Consumables Bar. Detailed Implementation

[0082] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0083] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0084] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more (including two), unless otherwise explicitly defined.

[0085] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0086] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0087] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0088] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0089] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0090] Additive manufacturing technology is a manufacturing technology that integrates computer-aided design, material processing and forming technology to produce solid objects by thermally deforming and stacking materials such as metals and non-metals layer by layer.

[0091] However, in related technologies, additive manufacturing technology is usually discontinuous feeding. When the long-sized filament rods are used up, additive manufacturing needs to be stopped, replaced with new filament rods, and then manufacturing can continue, resulting in low manufacturing efficiency.

[0092] In view of this, this application provides a solid additive manufacturing method with continuous feeding, which can continuously feed materials during the additive manufacturing process, thereby improving the efficiency of solid additive manufacturing and the overall performance of solid additive manufactured components.

[0093] Figure 1 A schematic flowchart of a solid additive manufacturing method provided in some embodiments of this application is shown.

[0094] Figures 2 to 8 A schematic diagram illustrating the working principle of a continuous feeding device provided in some embodiments of this application is shown.

[0095] Please refer to Figures 1 to 8 This application provides a solid additive manufacturing method with a continuous feed, which is used to transport a consumable rod 200 to a spindle rotation mechanism 50 in a continuous feeding device 100. One end of the consumable rod 200 is provided with a first positioning part, and the other end is provided with a second positioning part that cooperates with the first positioning part.

[0096] The continuous feeding device 100 includes a feeding mechanism 10, a pressing mechanism 20, a high-level lifting mechanism 310, and a low-level lifting mechanism 320. The solid additive manufacturing method includes the following steps:

[0097] S10: Place multiple consumable bars 200 in the feeding mechanism 10, and provide consumable bars 200 to the high-position lifting mechanism 310 located in the third clamping position, the low-position lifting mechanism 320 located in the first clamping position, and the spindle rotation mechanism 50. The consumable bars 200 in the high-position lifting mechanism 310 are connected end to end with the consumable bars 200 in the low-position lifting mechanism 320 and the spindle rotation mechanism 50 through the first positioning part and the second positioning part.

[0098] S20: The pressing mechanism 20 delivers the consumable bar 200 to the high-position lifting mechanism 310 in a predetermined sequence, and cooperates with the high-position lifting mechanism 310 to connect the consumable bar 200 output by the pressing mechanism 20 with the consumable bar 200 in the high-position lifting mechanism 310 end to end through the first positioning part and the second positioning part.

[0099] S30: The low-position lifting mechanism 320 cooperates with the top pressing mechanism 20 and the high-position lifting mechanism 310 to drive the consumable rod 200 to move down until the low-position lifting mechanism 320 moves to the second limit position;

[0100] S40: The high-position lifting mechanism 310 clamps the consumable rod 200, the low-position lifting mechanism 320 releases the consumable rod 200 and moves upward, the high-position lifting mechanism 310 drives the clamped consumable rod 200 to push the low-position lifting mechanism 320 to continue to move downward until it moves to the fifth limit position, and the low-position lifting mechanism 320 moves to the first clamping position;

[0101] S50: The low-position lifting mechanism 320 clamps the consumable rod 200 held by the high-position lifting mechanism 310, the high-position lifting mechanism 310 releases the consumable rod 200 and moves upward, and the low-position lifting mechanism 320 drives the clamped consumable rod 200 to continue to move downward.

[0102] S60: When the low-position lifting mechanism 320 moves to near the second limit position, the high-position lifting mechanism 310 moves to the third clamping position to clamp the consumable bar 200 conveyed by the top pressing mechanism 20.

[0103] S70: Repeat steps S40 to S60.

[0104] In S10, please refer to Figure 2 The third clamping position is the highest position of the high-position lifting mechanism 310, and the first clamping position is the highest position of the low-position lifting mechanism 320.

[0105] In S30, please refer to Figure 3 The second extreme position is the lowest position of the low-position lifting mechanism 320.

[0106] In S40, please refer to Figure 4 The fifth extreme position is the lowest position of the high-level lifting mechanism 310.

[0107] The solid additive manufacturing method provided in this application embodiment can continuously supply consumable rods to the spindle rotation mechanism without interruption to replace new consumable rods, thereby shortening the feeding time and improving the manufacturing efficiency of additive manufacturing and the overall performance of solid additive manufacturing components.

[0108] In some embodiments of this application, step S30 includes the following steps:

[0109] S31: The high-position lifting mechanism 310 opens so that its inner diameter is larger than the outer diameter of the consumable bar 200;

[0110] S32: The low-position lifting mechanism 320 clamps and drives the consumable bar 200 to move down until the low-position lifting mechanism 320 moves to the second limit position.

[0111] In the above embodiments, the consumable rod 200 can be a round rod or a square rod. The first positioning part at one end of the consumable rod 200 can be an irregularly shaped protrusion or a threaded rod structure, and the second positioning part at the other end of the consumable rod 200 can be a groove or a threaded hole that mates with the first positioning part. Through the cooperation of this concave-convex structure or threaded structure, torque transmission can be achieved when multiple consumable rods 200 are subjected to downward pressure.

[0112] In some embodiments of this application, the first positioning part of the consumable rod 200 is a pyramidal protrusion and the second positioning part is a pyramidal groove. This makes the transition position of the consumable rod 200 an inclined surface, so that the consumable rod 200 at the connection can form a continuous plastic deformation flow during solid additive manufacturing, thereby further improving the overall performance of the solid additive manufacturing component.

[0113] In some embodiments of this application, the spindle rotation mechanism 50 includes a hollow stirring tool sleeved on the outside of the consumable rod 200, a transmission wheel sleeved on the upper end of the hollow stirring tool, and a drive motor connected to the transmission wheel. The drive motor drives the transmission wheel to rotate the hollow stirring tool, thereby stirring and coating the plastically deformed consumable rod 200 onto a substrate or a previous coating, thus achieving the purpose of additive manufacturing.

[0114] Figure 9 A schematic diagram of the structure of a continuous feeding device provided in some embodiments of this application is shown.

[0115] Figure 10 This is a schematic diagram of the feeding mechanism and the pressing mechanism of a continuous feeding device provided in some embodiments of this application.

[0116] Figure 11 for Figure 10 A schematic diagram of the material feeding mechanism.

[0117] Please refer to Figure 10 In some embodiments of this application, the feeding mechanism 10 includes a receiving component 11 and a pushing component 12. The receiving component 11 has a receiving space 111 for receiving the consumable rod 200. The pushing component 12 is disposed on one side of the receiving component 11 and can extend into the receiving space 111 to push the consumable rod 200 out of the receiving space 111.

[0118] Please refer to Figure 11 In some embodiments of this application, the receiving component 11 includes a first frame 112, a second frame 113, and a connecting frame 114. The second frame 113 is disposed opposite to the first frame 112. The connecting frame 114 is connected between the first frame 112 and the second frame 113 to form a receiving space 111 with a discharge port.

[0119] The discharge port of the receiving space 111 is connected to the pressing mechanism 20. Furthermore, the volume of the receiving space 111 can be selected according to actual application requirements; this embodiment does not impose a specific limitation. The consumable rods 200 contained in the receiving space 111 are arranged sequentially along the length of the receiving component 11, which helps the pushing component 12 to push the consumable rods 200 out in a predetermined order.

[0120] In some examples, the first frame 112 and the second frame 113 are U-shaped, and the connecting frame 114 can be U-shaped. Therefore, the receiving space 111 is a U-shaped receiving groove, and the opening of the receiving groove, i.e. the discharge port, is connected to the top pressing mechanism 20.

[0121] The width D of the outlet of the receiving space 111 and the width d of a consumable bar 200 satisfy the following relationship: d ≤ D < 2d. This reduces the stacking of consumable bars 200 within the receiving space 111, thereby facilitating the transport of the consumable bars 200.

[0122] Please continue to refer to Figure 11 In some embodiments, the pushing component 12 includes two connecting portions 121, a first guide portion 122, a pushing portion 123, and a driving member 124. The two connecting portions 121 are disposed opposite each other and located on one side of the receiving component 11. The first guide portion 122 is connected between the two connecting portions 121. The pushing portion 123 is slidably connected to the first guide portion 122 and is disposed within the receiving space 111. This allows the pushing portion 123 to push out the consumable rod 200 contained in the receiving space 111 through the discharge port. The driving member 124 is connected to the pushing portion 123 and is used to drive the pushing portion 123 to slide along the first guide portion 122.

[0123] In the above embodiments, the two connecting parts 121 can be fixed on the outer frame, the first guide part 122 is connected between the two connecting parts 121, and multiple guide parts are arranged vertically at intervals along the connecting parts 121.

[0124] In addition, in some other embodiments of this application, the width of the pushing part 123 in the vertical direction is equal to the width of the discharge port of the receiving space 111. This makes the consumable bar 200 subjected to balanced force, further reducing the stacking of the consumable bar 200 during the process of pushing out of the receiving space 111, thereby facilitating the conveying of the consumable bar 200.

[0125] In some examples, the pusher 123 has a hook-like structure, one side of which can extend into the receiving space 111 to push the consumable rod 200 in the receiving space 111, and the other side is slidably connected to the first guide 122.

[0126] You can continue to refer to Figure 11In some embodiments of this application, the driving member 124 may be an elastic member, such as a spring, which is disposed between the pushing part 123 and the connecting part 121. The pushing part 123 contacts the last consumable bar 200 in the accommodating space 111. When the accommodating space 111 is full of consumable bars 200, the elastic member is in a stretched state. At this time, the elastic member can apply a force to the consumable bar 200, thereby pushing the consumable bar 200 toward the pressing mechanism 20.

[0127] Figure 12 A schematic diagram of the top pressing mechanism of a continuous feeding device provided in some embodiments of this application is shown.

[0128] Figure 13 and Figure 14 It shows Figure 12 A schematic diagram of the conveying pipe.

[0129] Figure 15 It shows Figure 12 A schematic diagram of the middle and lower pressure mechanism.

[0130] Please refer to Figures 12 to 14 In some embodiments of this application, the pressing mechanism 20 includes a conveying pipe 21 and a pressing mechanism 22. The side wall of the conveying pipe 21 has an inlet 211, which is disposed opposite to the receiving component 11. The pressing mechanism 22 extends into the conveying pipe 21 and can move up and down within the conveying pipe 21 to drive the consumable rod 200 to move axially.

[0131] The delivery tube 21 serves as a guide and works in conjunction with the pressing mechanism 22 to guide the consumable rod 200 into the lifting mechanism 310. The shape and size of the delivery tube 21 can be designed according to the shape and size of the consumable rod 200. For example, if the consumable rod 200 is cylindrical, the shape of the delivery tube 21 can also be cylindrical. This embodiment of the application does not impose any particular limitation on this.

[0132] Please refer to Figure 15 In some embodiments of this application, the pressing mechanism 22 includes a pressing part 221, a driver 222, and a second guide part 223.

[0133] The first end of the pressing part 221 can extend into the conveying pipe 21 and move within the conveying pipe 21. The driver 222 is movably connected to the second end of the pressing part 221 and is used to drive the pressing part 221 to move within the conveying pipe 21.

[0134] The pressing part 221 includes a pressing head (i.e., the first end) and a pressing arm (i.e., the second end). The pressing head can extend into the delivery pipe 21 and presses down on the consumable rod 200 inside the delivery pipe 21 under the drive of the pressing arm. The pressing head can be an irregularly shaped protrusion that cooperates with the second positioning part of the consumable rod 200 or a threaded rod structure. In some embodiments of this application, the pressing head is pyramidal in shape, and the pressing head is rotatably connected to the lower end of the pressing arm through a rolling bearing and a bearing fixing cover. In this way, when the pressing head is connected to the consumable rod 200, the pressing head can press down on the consumable rod 200 and rotate with the consumable rod 200. That is, when the consumable rod 200 rotates, the pressing head also rotates.

[0135] In the above embodiments, the driver 222 can drive the pressing part 221 to extend into and move within the delivery tube 21 to provide driving force to the consumable bar 200 within the delivery tube 21, so that it is output through the outlet.

[0136] In some examples, the driver 222 can be any device that provides driving power, such as an electric screw.

[0137] The second guide section 223 is disposed opposite to the conveying pipe 21. The second guide section 223 includes two guide rods and a connecting part. The two guide rods are arranged in parallel, and the connecting part is disposed at both ends of the guide rods and connects the two guide rods. The pressing part 221 is slidably connected to the guide rods.

[0138] In some embodiments of this application, the pressing mechanism 22 further includes a limiting portion 224 that, by operating the driver 222, limits the pressing portion 221 to a preset position. The preset position includes a first position and a second position, wherein, in the first position, the pressing portion 221 is located at the first end of the delivery pipe 21, and in the second position, the pressing portion 221 is located at the outlet of the delivery pipe 21.

[0139] The first position can be understood as the initial position of the pressing part 221, that is, above the feed inlet 211 of the conveying pipe 21. The second position can be understood as the target position, that is, near the outlet of the conveying pipe 21.

[0140] In some examples, the limiting part 224 can be a vehicle limit switch. In some embodiments of this application, the limiting part 224 is a limit switch, which is located between the driver 222 and the pressing part 221. The pressing part 221 can be connected to the connecting part of the second guide part 223 through the elastic member 226. The elastic member 226 can be any elastic component, such as a spring. This application embodiment does not make any particular limitation.

[0141] During operation, the pressing part 221 pushes the consumable bar 200 in the delivery tube 21 downward under the action of the elastic member 226. At this time, the limiting part 224 is in the closed state. When the pressing part 221 moves to the lowest position, that is, the outlet of the delivery tube 21, the limiting part 224 opens to limit the pressing part 221. Under the action of the driver 222, the limiting part 224 can drive the pressing part 221 to move upward along the delivery tube 21 to the initial position to prepare for the delivery of the next consumable bar 200.

[0142] In these optional embodiments, the elastic element 226 not only pulls the pressing part 221 downward, but also acts as a buffer to reduce the impact of the pressing part 221 on the conveying pipe 21 and other components, thereby extending the service life of the pressing mechanism 20.

[0143] Figure 16 for Figure 9 A schematic diagram of the mid-to-high-level lifting mechanism.

[0144] Figure 17 for Figure 16 A schematic diagram of the lifting component.

[0145] Figure 18 for Figure 16 A schematic diagram of the structure of the lubrication section and the engagement section.

[0146] Figure 19 for Figure 16 A schematic diagram of the connection structure between the rotating component and the clamping component.

[0147] Figure 20 for Figure 19 A schematic diagram of the structure of the middle clamping component.

[0148] Figure 21 for Figure 19 A schematic diagram of the middle clamping part.

[0149] Please refer to Figure 16 The high-position lifting mechanism 310 includes a lifting component 311, a rotating component 312, a pressing component 313, a telescopic component 314, a first driving component 316, and a second driving component 315.

[0150] Please refer to Figure 17The lifting component 311 includes a lifting arm 3111. The first end of the lifting arm 3111 is connected to the first driving component 316. The lifting arm 3111 has a through hole 3111c penetrating the first surface 3111a and the second surface 3111b, as well as a mounting hole 3111d. Four through holes 3111c can be provided, and the four through holes 3111c can be arranged around the mounting hole 3111d. This avoids interference between the telescopic component 314 and the rotating component 312, while also ensuring that the clamping component 313 experiences balanced force, thus firmly clamping the consumable rod 200.

[0151] Please refer to Figure 17 and Figure 18 In some embodiments, the second surface 3111b of the lifting component 311 is provided with an annular groove 3111e communicating with the through hole 3111c. A slidable lubricant 3112 is installed in the annular groove 3111e, and a locking part 3113 is provided on the surface of the lubricant 3112 facing away from the second surface 3111b.

[0152] The telescopic component 314 extends through the through hole 3111c into the annular groove 3111e to apply force to the lubricating component 3112. The lubricating component 3112 transmits this force to the clamping component 313, causing it to switch between a clamped state and a non-clamped state. The engaging part 3113 can engage in the clamping component 313, allowing the lubricating component 3112 to facilitate the rotation of the clamping component 313 relative to the lifting component 311.

[0153] Please refer to Figure 19 In some embodiments, the rotating component 312 includes a rotating shaft 3121 and a drive wheel 3122. The rotating shaft 3121 has a first end 3121a protruding from a first surface 3111a and a second end 3121b protruding from a second surface 3111b and connected to the first end 3121a. The rotating shaft 3121 is provided with a second material conveying channel axially penetrating the first end 3121a and the second end 3121b. The second end 3121b is connected to the pressing component 313. The drive wheel 3122 is sleeved on the first end 3121a and is drively connected to the second driving component 315, so that the second driving component 315 drives the drive wheel 3122 to drive the rotating shaft 3121 to rotate.

[0154] In the above-described optional embodiments, the transmission wheel 3122, driven by the second driving component 315, can drive the rotating shaft 3121 to rotate within the mounting hole 3111d. The rotating shaft 3121 has a second feeding channel, allowing the consumable rod 200 within the second feeding channel to rotate with the rotating shaft 3121. Furthermore, the second end 3121b is connected to the clamping component 313, thus also driving the clamping component 313 to rotate. This helps to keep the consumable rod 200 and the rotating shaft 3121 rotating synchronously, preventing friction between the consumable rod 200, the rotating shaft 3121, and the clamping component 313, thus avoiding wear and tear on the consumable rod 200.

[0155] In other embodiments of this application, the rotating component 312 further includes a first rolling bearing 3123 and a first thrust bearing 3124. The first rolling bearing 3123 is disposed within the mounting hole 3111d and located on the outer periphery of the rotating shaft 3121. The first thrust bearing 3124 is located on the outer periphery of the second end 3121b.

[0156] In these alternative embodiments, the first rolling bearing 3123 helps the rotating shaft 3121 rotate relative to the lifting component 311, preventing friction between the rotating shaft 3121 and the lifting component 311 and thus extending its service life. The first thrust bearing 3124 helps the rotating shaft 3121 withstand the axial force of the lifting component 311, allowing it to move up and down with the lifting component 311.

[0157] Furthermore, in some alternative embodiments of this application, the rotating component 312 further includes a fastener fitted onto the first end 3121a to secure the first rolling bearing 3123. The fastener secures the first rolling bearing 3123, facilitating rotation of the rotating shaft 3121. In some examples, the fastener may be a retaining ring.

[0158] Please refer to Figures 19 to 21 The clamping component 313 includes multiple support portions 3131, multiple clamping portions 3132, and a base 3133. The first ends of the multiple support portions 3131 are connected to the end faces of the second ends 3121b and are spaced apart on the end faces of the second ends 3121b. The multiple clamping portions 3132 are pivotally connected to their corresponding support portions 3131. Each clamping portion 3132 includes a drive end 3132a and a clamping end 3132b connected to each other. The multiple clamping ends 3132b surround to form a first feeding channel. The telescopic component 314 can drive the drive end 3132a to engage the clamping ends 3132b to clamp or release the consumable rod 200 within the first feeding channel. The base 3133 is connected to the second ends of the multiple support portions 3131 and has a third feeding channel communicating with the first feeding channel.

[0159] The support portion 3131 and the base 3133 provide support. The first end of the support portion 3131 is connected to the second end 3121b of the rotating shaft 3121, and the second end is connected to the base 3133, so that the clamping member 313 can rotate together with the rotating member 312. The clamping portion 3132 is pivotally connected to the support portion 3131, that is, the clamping portion 3132 can rotate relative to the support portion 3131. The clamping portion 3132 includes a driving end 3132a and a clamping end 3132b connected to each other. The driving end 3132a is arranged opposite to the through hole 3111c. Multiple clamping ends 3132b surround to form a first material conveying channel. Thus, the telescopic member 314 can drive the driving end 3132a to engage the clamping ends 3132b to clamp or release the consumable bar 200 in the first material conveying channel. When the clamping end 3132b clamps the consumable rod 200 in the first feeding channel, the consumable rod 200 can rotate with the rotating component 312; when the clamping end 3132b releases the consumable rod 200 in the first feeding channel, the consumable rod 200 can move downward to the target position. In addition, the base 3133 has a third feeding channel communicating with the first feeding channel, which enables the consumable rod 200 to be quickly transported to the target position.

[0160] In these alternative embodiments, the clamping part 3132 can be understood as a lever clamp.

[0161] In some optional embodiments of this application, the support portion 3131 is provided with a first through hole 3131a, and the wall of the first through hole 3131a is provided with two opposing first pin holes 3131b. The clamping portion 3132 is provided with a second pin hole 3132c that mates with the first pin holes 3131b. The clamping component 313 further includes a first pin 3134. The clamping portion 3132 passes through the first through hole 3131a and is pivotally connected to the support portion 3131 through the engagement of the first pin 3134 with the first pin holes 3131b and the second pin hole 3132c.

[0162] In these alternative embodiments, the cooperation between the support part 3131 and the clamping part 3132 is simple, and under the action of the telescopic member 314, it is more convenient for the clamping part 3132 to clamp or loosen the consumable rod 200.

[0163] In addition, the end face of the clamping end 3132b facing the first feeding channel can have a shape that is adapted to the outer surface of the consumable bar 200, such as square or round, so that the clamping end 3132b can firmly clamp the raw material.

[0164] In some alternative embodiments of this application, the end face of the clamping end 3132b facing the first feed channel also has external threads, which further helps the clamping part 3132 to firmly clamp the consumable bar 200.

[0165] In some optional embodiments of this application, the clamping component 313 further includes a transmission block 3135. The transmission block 3135 is provided with a second through hole 3135a and a locking hole 3135b that cooperates with the engaging part 3113. The driving end 3132a passes through the second through hole 3135a and is pivotally connected to the transmission block 3135. The lubricating component 3112 and the transmission block 3135 are connected by the engaging part 3113 cooperating with the locking hole 3135b.

[0166] In these alternative embodiments, the arrangement of the transmission block 3135 not only facilitates the rotation of the pressing member 313 relative to the lifting member 311, but also facilitates the switching of the pressing member 313 between the pressing state and the non-pressing state.

[0167] In some optional embodiments of this application, the clamping member 313 further includes a third elastic portion connected between the support portion 3131 and the clamping end 3132b. When the telescopic member 314 drives the driving end 3132a to retract upward, the elastic portion generates a radial pulling force on the clamping end 3132b, causing the clamping portion 3132 to rotate relative to the support portion 3131, thereby generating an upward component force on the driving end 3132a, enabling the transmission block 3135 to move upward with the telescopic member 314.

[0168] In these alternative embodiments, the provision of the third elastic portion can help the clamping end 3132b quickly return to its initial position, thereby quickly releasing the consumable rod 200 and allowing the consumable rod 200 to quickly leave the clamping member 313.

[0169] In some examples, the third elastic part can be a spring.

[0170] In some optional embodiments of this application, the second through hole 3135a has two oppositely arranged third pin holes 3135c on its hole wall, the drive end 3132a has a fourth pin hole 3132d that cooperates with the third pin holes 3135c, and the clamping component 313 also includes a second pin 3136. The drive end 3132a passes through the second through hole 3135a and is pivotally connected to the transmission block 3135 through the cooperation of the second pin 3136, the third pin hole 3135c and the fourth pin hole 3132d.

[0171] In some embodiments of this application, the distance between the second pin hole 3132c and the fourth pin hole 3132d of the clamping part 3132 can be greater than the distance between the second pin hole 3132c and the clamping end 3132b. This increases the input lever arm, thereby increasing the thrust of the telescopic component 314 and increasing the clamping force of the clamping part 3132 on the consumable rod 200.

[0172] In some embodiments of this application, a second rolling bearing 3137 and a second thrust bearing 3138 are respectively fitted on the base 3133, which can help the base 3133 rotate and rise.

[0173] In some optional embodiments of this application, the telescopic component 314 may include a lubrication sleeve 3141, a telescopic rod 3142, and a fixing bracket 3143. The lubrication sleeve 3141 is installed in the through hole 3111c. The telescopic rod 3142 is installed on the first surface 3111a and can push the lubricant 3112 to move in the annular groove 3111e through the through hole 3111c, so that the driving end 3132a drives the clamping part 3132 to clamp the consumable rod 200 in the first feeding channel. The fixing bracket 3143 is installed on the first surface 3111a and is used to fix the telescopic rod 3142.

[0174] In these alternative embodiments, the lubrication sleeve 3141 facilitates the extension and retraction of the telescopic rod 3142, reducing the impact of external resistance. The fixing bracket 3143 secures it to the first surface 3111a and also provides protection.

[0175] In some other embodiments of this application, a bearing may be used instead of the lubrication sleeve 3141.

[0176] In some examples, the telescopic pole 3142 can be an electrically controlled telescopic pole.

[0177] Please refer to Figure 17 In some optional embodiments of this application, the first driving component 316 may include a guide rail 3161, a second slider 3162, and a second lead screw 3163. The second lead screw 3163 is threadedly connected to the second slider 3162, and the guide rail 3161 is slidably connected to the second slider 3162, so that the lifting component 311 moves up and down along the guide rail 3161 via the second slider 3162.

[0178] In some optional embodiments of this application, the second driving component 315 may include a motor, a connecting bracket, and a transmission unit. The motor is used to output torque. The connecting bracket is connected between the motor and the lifting component 311, and the motor moves up and down with the lifting component 311 via the connecting bracket. The transmission unit is connected between the motor and the transmission wheel 3122, and the motor drives the transmission wheel 3122 to rotate the rotating shaft 3121 via the transmission unit.

[0179] It should be noted that when the consumable rod 200 is a rod with a polygonal cross-section, the material conveying channel in the hollow stirring tool of the main shaft rotation mechanism 50 is a polygonal through hole that matches the shape of the consumable rod 200. At this time, the main shaft rotation mechanism 50 is the rotational power, which drives the consumable rod 200 to rotate, while the second drive component 315 is in the disconnected state. The high-position lifting mechanism 310 and the low-position lifting mechanism 320 clamp the consumable rod 200 and move with the consumable rod 200. At the same time, the high-position lifting mechanism 310 and the low-position lifting mechanism 320 apply downward pressure by moving downward.

[0180] When the consumable rod 200 is a rod with a circular cross-section, the material conveying channel in the hollow stirring tool of the main shaft rotation mechanism 50 is a circular through hole adapted to the shape of the consumable rod 200. At this time, the second drive component 315 is in the open state, and the high-position lifting mechanism 310 and the low-position lifting mechanism 320 clamp the consumable rod 200 and drive the consumable rod 200 to rotate. At the same time, the high-position lifting mechanism 310 and the low-position lifting mechanism 320 apply downward pressure by moving downward. The main shaft rotation mechanism 50 is used to radially support the consumable rod 200 and can rotate relative to the consumable rod 200. Its rotation speed can be the same as or different from the rotation speed of the high-position lifting mechanism 310 and the low-position lifting mechanism 320, and the rotation direction can be the same as or opposite to that of the high-position lifting mechanism 310 and the low-position lifting mechanism 320.

[0181] Figure 22 It shows Figure 9 A cross-sectional view of a high-position lifting mechanism according to another embodiment.

[0182] The high-level lifting mechanism 310 may also include a cylinder 317 having an opening and an outlet arranged opposite to each other, a lifting component 311 covering the opening and connected to the end face of the opening, a second end 3121b of the rotating shaft 3121 and a pressing component 313 disposed inside the cylinder 317, and a base 3133 installed at the outlet.

[0183] In these optional embodiments, the cylindrical body 317 serves to protect the clamping component 313 and reduce external interference to the clamping component 313 and the consumable rod 200.

[0184] In some embodiments of this application, the low-position lifting mechanism 320 and the high-position lifting mechanism 310 have the same structure.

[0185] Figure 23 This is a schematic diagram of the structure of a continuous feeding device provided in some other embodiments of this application.

[0186] Please refer to Figure 23 The continuous feeding device 100 may also include a support mechanism 40, which is located between the high-level lifting mechanism 310 and the low-level lifting mechanism 320.

[0187] Step S30 also includes the following steps:

[0188] S33: The support mechanism 40 radially supports the consumable rod 200 and moves with the movement of the low-position lifting mechanism 320 and the high-position lifting mechanism 310;

[0189] Preferably, the support mechanism 40 is located in the middle position between the high-position lifting mechanism 310 and the low-position lifting mechanism 320. The support mechanism 40 has a material passage that cooperates with the second material conveying channel.

[0190] In some examples, the support mechanism 40 includes an axial drive mechanism, a support plate, and a second lubrication sleeve. One end of the support plate is connected to the axial drive mechanism, and the other end has a material passage. The second lubrication sleeve is installed within the material passage, thus providing radial support to the consumable rod 200 and preventing significant bending deformation in the middle of the rod. Simultaneously, the axial drive mechanism can drive the support plate to move axially along the consumable rod 200, allowing the support position to be adjusted according to changes in the distance between the high-position lifting mechanism 310 and the low-position lifting mechanism 320.

[0191] In the above embodiments, step S40 may include:

[0192] S41: The high-position lifting mechanism 310 clamps the consumable rod 200, the low-position lifting mechanism 320 releases the consumable rod 200 and moves upward with the support mechanism 40, the high-position lifting mechanism 310 and the top pressing mechanism 20 drive the clamped consumable rod 200 to push the consumable rod 200 released by the low-position lifting mechanism 320 to continue to move downward.

[0193] S42: The high-position lifting mechanism 310 moves downward to the fifth limit position, and the low-position lifting mechanism 320 moves upward to the first clamping position.

[0194] Further, step S50 may include:

[0195] S51: The low-position lifting mechanism 320 clamps the consumable rod 200 held by the high-position lifting mechanism 310;

[0196] S52: The high-level lifting mechanism 310 releases the consumable rod 200 and moves upward with the support mechanism 40, wherein the upward movement speed of the support mechanism 40 is less than the upward movement speed of the high-level lifting mechanism 310.

[0197] S52: The low-position lifting mechanism 320 cooperates with the top pressing mechanism 20 to drive the clamped consumable bar 200 to continue to move downward.

[0198] In the above embodiments, step S60 may include:

[0199] S61: When the low-position lifting mechanism 320 moves to near the second limit position, the high-position lifting mechanism 310 moves upward to the third clamping position to clamp the consumable bar 200 conveyed by the pressing mechanism 20.

[0200] S62: The support mechanism 40 and the high-position lifting mechanism 310 move in the same direction;

[0201] S63: The top pressure mechanism 20 moves upward.

[0202] In step S63, the moving speed of the top pressing mechanism 20 is greater than the moving speed of the high-position lifting mechanism 310.

[0203] Please refer to Figure 23 In some embodiments of this application, the continuous feeding device 100 further includes a blocking mechanism 23, which includes a plurality of blocking members 231. When the blocking mechanism 23 is in a blocking state, the consumable rod 200 is blocked within the feeding mechanism 10. When the blocking mechanism 23 is in a non-blocking state, the consumable rod 200 can be pushed out of the feeding mechanism 10 to convey the consumable rod 200 downward to the high-level lifting mechanism 310.

[0204] In the above embodiments, step S20 includes:

[0205] S21: Set the multiple blocking elements 231 to the non-blocking state, and push out the consumable bar 200 from the feeding mechanism 10;

[0206] S22: The pressing mechanism 20 moves the consumable bar 200 down and conveys it to the high-level lifting mechanism 310. When the pressing mechanism 20 passes the blocking member 231, it sets the corresponding blocking member 231 to the blocking state.

[0207] S23: Cooperates with the high-level lifting mechanism 310 to connect the consumable rod 200 output by the top pressing mechanism 20 with the consumable rod 200 inside the high-level lifting mechanism 310.

[0208] Step S63 includes:

[0209] S631: The upward pressing mechanism 20 passes through the blocking member 231 in sequence. When passing through each blocking member 231, the blocking member 231 to be passed through is first set to a non-blocking state. After passing through, the blocking member 231 is set to a blocking state, so that the pressing mechanism 20 moves up to the top blocking member 231.

[0210] Please refer to Figure 14The sidewall of the conveying pipe 21 is provided with a plurality of openings 212 at intervals, and the plurality of openings 212 are arranged opposite to the feed inlet 211. The blocking mechanism 23 includes blocking members 231 that are arranged one-to-one with the openings 212. The blocking members 231 can extend into the receiving space 111 through the openings 212 and the feed inlet 211 to block the consumable rod 200 from entering the conveying pipe 21.

[0211] In the above embodiments, each blocking member 231 works independently. When the pressing mechanism 20 presses down on the consumable bar 200, the blocking member 231 is in a non-blocking state. After the pressing mechanism 20 passes through the blocking member 231, the blocking member 231 immediately resets to the blocking state to prevent the consumable bar 200 from being pushed out. After the pressing mechanism 20 pushes the consumable bar 200 to the target position, the pressing mechanism 20 moves upward along the conveying pipe 21. Each time it passes a blocking member 231, the blocking member 231 retracts towards the outside of the conveying pipe 21 to avoid the pressing mechanism 20. After the pressing mechanism 20 passes, the blocking member 231 extends into the receiving space 111 again to block the consumable bar 200 until the pressing mechanism 20 rises to the initial position. Then all the blocking members 231 return to the non-blocking state to ensure that the next consumable bar 200 can be pushed into the conveying pipe 21.

[0212] It should be noted that when the pressing mechanism 20 presses down on the consumable bar 200, it is necessary to ensure that the blocking member 231 is completely away from the delivery pipe 21 to avoid interference between the consumable bar 200 and the blocking mechanism 23 during rotation.

[0213] In some examples, the stop 231 may be a pneumatic push rod.

[0214] In some other embodiments of this application, the side wall of the conveying pipe 21 is also provided with a notch 213 for the pressing mechanism 20 to move up and down.

[0215] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A solid additive manufacturing method with a connected feedstock, characterized in that, The solid additive manufacturing method is used to transport a consumable rod (200) to a spindle rotation mechanism (50) in a continuous feeding device (100). One end of the consumable rod (200) is provided with a first positioning part, and the other end is provided with a second positioning part that cooperates with the first positioning part. The continuous feeding device (100) includes a feeding mechanism (10), a pressing mechanism (20), a high-level lifting mechanism (310), and a low-level lifting mechanism (320). The solid additive manufacturing method includes the following steps: S10: Place multiple consumable rods (200) inside the feeding mechanism (10), and provide the consumable rods (200) to the high-position lifting mechanism (310) located in the third clamping position, and to the low-position lifting mechanism (320) located in the first clamping position and the main shaft rotation mechanism (50), wherein the consumable rods (200) in the high-position lifting mechanism (310) are connected end to end with the consumable rods (200) in the low-position lifting mechanism (320) and the main shaft rotation mechanism (50) through the first positioning part and the second positioning part, the third clamping position is the highest position of the high-position lifting mechanism (310), and the first clamping position is the highest position of the low-position lifting mechanism (320); S20: The top pressing mechanism (20) delivers the consumable rod (200) to the high-level lifting mechanism (310) in a predetermined sequence, and cooperates with the high-level lifting mechanism (310) to connect the consumable rod (200) output by the top pressing mechanism (20) with the consumable rod (200) in the high-level lifting mechanism (310) end to end through the first positioning part and the second positioning part; S30: The low-position lifting mechanism (320) cooperates with the top pressing mechanism (20) and the high-position lifting mechanism (310) to drive the consumable bar (200) to move down until the low-position lifting mechanism (320) moves to the second limit position, which is the lowest position of the low-position lifting mechanism (320); S40: The high-position lifting mechanism (310) clamps the consumable rod (200), the low-position lifting mechanism (320) releases the consumable rod (200) and moves upward, the high-position lifting mechanism (310) drives the clamped consumable rod (200) to push the low-position lifting mechanism (320) to release the consumable rod (200) and continue to move downward until it moves to the fifth limit position, the low-position lifting mechanism (320) moves to the first clamping position, and the fifth limit position is the lowest position of the high-position lifting mechanism (310); S50: The low-position lifting mechanism (320) clamps the consumable rod (200) held by the high-position lifting mechanism (310), the high-position lifting mechanism (310) releases the consumable rod (200) and moves upward, and the low-position lifting mechanism (320) drives the clamped consumable rod (200) to continue to move downward. S60: When the low-position lifting mechanism (320) moves to near the second limit position, the high-position lifting mechanism (310) moves to the third clamping position to clamp the consumable bar (200) conveyed by the top pressing mechanism (20). S70: Repeat steps S40 to S60.

2. The solid-state additive manufacturing method according to claim 1, characterized in that, Step S30 includes the following steps: S31: The high-position lifting mechanism (310) opens so that its inner diameter is larger than the outer diameter of the consumable rod (200); S32: The low-position lifting mechanism (320) clamps and drives the consumable bar (200) to move down until the low-position lifting mechanism (320) moves to the second limit position.

3. The solid-state additive manufacturing method according to claim 2, characterized in that, The continuous feeding device (100) further includes a support mechanism (40), which is located between the high-level lifting mechanism (310) and the low-level lifting mechanism (320); Step S30 further includes the following step: S33: The support mechanism (40) radially supports the consumable rod (200) and moves with the movement of the low-position lifting mechanism (320) and the high-position lifting mechanism (310); The support mechanism (40) is located in the middle position between the high-position lifting mechanism (310) and the low-position lifting mechanism (320).

4. The solid-state additive manufacturing method according to claim 3, characterized in that, Step S40 includes: S41: The high-position lifting mechanism (310) clamps the consumable rod (200), the low-position lifting mechanism (320) releases the consumable rod (200) and moves upward with the support mechanism (40), the high-position lifting mechanism (310) and the top pressing mechanism (20) drive the clamped consumable rod (200) to push the consumable rod (200) released by the low-position lifting mechanism (320) to continue to move downward; S42: The high-position lifting mechanism (310) moves downward to the fifth limit position, and the low-position lifting mechanism (320) moves upward to the first clamping position.

5. The solid-state additive manufacturing method according to claim 3, characterized in that, Step S50 includes: S51: The low-position lifting mechanism (320) clamps the consumable rod (200) held by the high-position lifting mechanism (310). S52: The high-level lifting mechanism (310) releases the consumable rod (200) and moves upward with the support mechanism (40), wherein the upward movement speed of the support mechanism (40) is less than the upward movement speed of the high-level lifting mechanism (310); S52: The low-position lifting mechanism (320) cooperates with the top pressing mechanism (20) to drive the clamped consumable bar (200) to continue to move downward.

6. The solid-state additive manufacturing method according to claim 3, characterized in that, Step S60 includes: S61: When the low-position lifting mechanism (320) moves to near the second limit position, the high-position lifting mechanism (310) moves upward to the third clamping position to clamp the consumable bar (200) conveyed by the top pressing mechanism (20). S62: The support mechanism (40) and the high-position lifting mechanism (310) move in the same direction; S63: The top pressing mechanism (20) moves upward.

7. The solid-state additive manufacturing method according to claim 6, characterized in that, In step S63, the moving speed of the top pressing mechanism (20) is greater than the moving speed of the high-position lifting mechanism (310).

8. The solid-state additive manufacturing method according to claim 6 or 7, characterized in that, The continuous feeding device (100) further includes a blocking mechanism (23), which includes a plurality of blocking elements (231). When the blocking mechanism (23) is in a blocking state, the consumable bar (200) is blocked in the feeding mechanism (10). When the blocking mechanism (23) is in a non-blocking state, the consumable bar (200) can be pushed out of the feeding mechanism (10) to convey the consumable bar (200) downward to the high-level lifting mechanism (310).

9. The solid-state additive manufacturing method according to claim 8, characterized in that, Step S20 includes: S21: Set multiple blocking members (231) to a non-blocking state and push out the consumable rod (200) from the feeding mechanism (10). S22: The top pressing mechanism (20) moves the consumable rod (200) down and delivers it to the high-level lifting mechanism (310). When the top pressing mechanism (20) passes the blocking member (231), the corresponding blocking member (231) is set to the blocking state. S23: Cooperate with the high-level lifting mechanism (310) to connect the consumable rod (200) output by the top pressing mechanism (20) with the consumable rod (200) inside the high-level lifting mechanism (310).

10. The solid-state additive manufacturing method according to claim 9, characterized in that, Step S63 includes: S631: The pressing mechanism (20) moves upward and passes through the blocking member (231) in sequence. When passing through each blocking member (231), the blocking member (231) to be passed through is first set to a non-blocking state. After passing through, the blocking member (231) is set to a blocking state, so that the pressing mechanism (20) moves upward to the topmost blocking member (231).

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