WO2024087421A1 - Wire feeding mechanism suitable for fused deposition additive manufacturing of flexible wire - Google Patents

Wire feeding mechanism suitable for fused deposition additive manufacturing of flexible wire Download PDF

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Publication number
WO2024087421A1
WO2024087421A1 PCT/CN2023/077081 CN2023077081W WO2024087421A1 WO 2024087421 A1 WO2024087421 A1 WO 2024087421A1 CN 2023077081 W CN2023077081 W CN 2023077081W WO 2024087421 A1 WO2024087421 A1 WO 2024087421A1
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WO
WIPO (PCT)
Prior art keywords
wire
wall
bracket
roller
additive manufacturing
Prior art date
Application number
PCT/CN2023/077081
Other languages
French (fr)
Chinese (zh)
Inventor
单忠德
罗林林
宋文哲
范聪泽
郑菁桦
陈意伟
Original Assignee
南京航空航天大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by 南京航空航天大学 filed Critical 南京航空航天大学
Priority to US18/243,651 priority Critical patent/US11926098B1/en
Publication of WO2024087421A1 publication Critical patent/WO2024087421A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/307—Handling of material to be used in additive manufacturing
    • B29C64/321—Feeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Definitions

  • the present invention relates to the technical field of 3D printing, and in particular to a wire feeding mechanism suitable for flexible wire material molten deposition additive manufacturing.
  • additive manufacturing commonly known as 3D printing
  • 3D printing additive manufacturing
  • additive manufacturing technology is fast, efficient, and flexible. It does not require traditional molds, tools, and fixtures. Instead, it uses three-dimensional design data to efficiently and accurately manufacture parts of any complex shape and structure on additive manufacturing equipment.
  • Additive manufacturing technology can process a wide range of raw materials. Additive manufacturing technology for non-metallic materials (mainly organic polymer materials) has been relatively maturely applied.
  • a hook is set on the device for wire separation.
  • relatively soft flexible materials such as TPU materials
  • the position in contact with the hook is likely to cause temporary accumulation and form a lump, thereby affecting the wire feeding progress and even directly affecting the printing effect.
  • the present invention discloses a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing, aiming to solve the technical problem that when printing flexible materials, the position in contact with the hook is likely to cause temporary accumulation and form agglomerates.
  • the cam is provided with a plurality of third connecting shafts, and the outer wall of the plurality of third connecting shafts is provided with a fourth connecting wheel, and the plurality of third connecting shafts are provided with a plurality of connecting wheels, and the plurality of connecting wheels are provided with a plurality of connecting wheels.
  • the wire drawing mechanism By providing a wire drawing mechanism, since the wire is flexible, when the wire is hung on the hook and transmitted to the melting nozzle position under the action of the wire guiding mechanism, the position in contact with the hook is likely to cause temporary accumulation and cause agglomeration, and the electric slider in the wire drawing mechanism drives the sixth bracket to move along the electric slide groove on the support.
  • the fourth roller When the electric slider moves to the high position of the electric slide groove, the fourth roller just contacts the bottom end of the wire on the hook, and the movement of the wire will also drive the fourth roller to move, thereby acting on the connection between the wire and the hook, reducing the risk of wire agglomeration, and at the same time, the circulating movement of the electric slider on the electric slide groove also plays a role in assisting the wire to open the agglomeration position, and when the electric slider slides to the lower end of the electric slide groove, it will be disconnected from the wire, thereby avoiding the situation where the circular movement causes the wire to twist and cause knotting.
  • the guide wire mechanism includes a limit block, and a third connecting rod is arranged on both sides of the limit block, and the third connecting rod is connected to the inner wall of the supporting shell.
  • the wire guiding mechanism includes a third roller, the outer wall of the third roller is provided with a plurality of rubber pads of equal density, the wire material is located between the rubber pad and the limit block, the outer wall of one side of the third roller is connected with a gear, the outer wall of the gear is clamped with a second gear, the outer wall of one side of the second gear is connected with a second clamping block, one end of the second clamping block is connected with a motor, the inner wall of the second clamping block is movably clamped with a fifth bracket, the inner walls of both sides of the fifth bracket are provided with connecting seats, the connecting seats are respectively connected with the gear and the third roller, the outer wall of one side of the fifth bracket is provided with a third bracket, the third bracket is connected to the motor, the outer wall of the fifth bracket is movably connected with a third
  • the position between the limit block and the rubber pad on the third roller can be further controlled, so that the wire guiding mechanism can be adapted to the use of wires of different types.
  • the rubber pad can ensure that the third roller is in close contact with the wire, while protecting the wire made of flexible wire from damage during wire guiding, thereby preventing the wire from being deformed due to the squeezing of the third roller.
  • the outer walls on both sides of the fifth bracket are provided with clamping strips
  • the inner walls on both sides of the fourth bracket are provided with clamping grooves
  • the fifth bracket is movably connected with the fourth bracket through the clamping strips and the clamping grooves
  • one side outer wall of the fifth bracket is connected with a support plate
  • the top of the support plate is provided with a slider
  • the top of the fourth bracket is connected with a top slide groove
  • the slider is movably clamped inside the top slide groove.
  • the second clamping block is clamped on the inner wall of the fifth bracket to ensure the position of the second gear and ensure that the second gear can be perfectly engaged with the gear.
  • the slider is clamped inside the top slide slot, and the clamping strips on both sides are clamped inside the slot, so that the three positions of the third roller are adjusted.
  • the limit block is used to ensure that the third roller will not loosen or move during long-term use, thereby preventing the third roller from escaping from the clamping position with the limit block and ensuring the service life of the wire feeding mechanism.
  • the limiting mechanism includes a bracket and a second bracket, an outer wall of one side of the bracket is connected to a second connecting rod, the second connecting rod is connected to the supporting shell, the inner wall of the bracket is provided with a connecting shaft, the outer wall of the connecting shaft is sleeved with a roller, the inner walls of both sides of the second bracket are provided with ball bearings, the inner walls of the ball bearings are clamped with a clamping block, one side of the clamping block is connected to the second connecting shaft, the outer wall of the second connecting shaft is sleeved with a second roller, the outer wall of the second roller is provided with soft bumps of equal density, one side of the second bracket is connected to a gas rod, and the other side of the gas rod is connected to the supporting shell.
  • the wire By setting a limiting mechanism to act on both sides of the wire, the wire can be accurately entered into the wire guiding mechanism to avoid dislocation of the wire, which may cause the wire guiding mechanism to fail to guide the wire normally.
  • soft protrusions are set at equal density on the outer wall of the second roller, so that when the wire is limited, when it contacts the soft protrusions, it will drive the second roller to rotate. Under the action of the ball bearing, the friction force of the second roller during rotation can be reduced.
  • the soft protrusions can be intermittently separated from the wire during the rotation of the second roller, thereby avoiding wear on the surface of the wire due to long-term contact with the wire.
  • the working principle of the present invention is as follows: when in use, the electric slider in the wire drawing mechanism drives the sixth bracket to move along the electric slide groove on the support. When the electric slider moves to the high position of the electric slide groove, the fourth roller just contacts the bottom end of the wire on the hook. Under the movement of the wire, the fourth roller is also driven to move, thereby acting on the connection between the wire and the hook to reduce the risk of wire agglomeration. At the same time, the electric slider circulates on the electric slide groove to assist the wire in opening the agglomeration position. When the electric slider slides to the lower end of the electric slide groove When the wire is slid into the loop, it will be disconnected from the wire, thus avoiding the situation where the wire is twisted and tangled due to the circular movement.
  • the wire feeding mechanism suitable for flexible wire fused deposition additive manufacturing has the function of reducing the risk of agglomeration at the connection between the wire and the hook.
  • FIG1 is a schematic diagram of the overall appearance structure of a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing proposed by the present invention.
  • FIG2 is a schematic diagram of the overall internal structure of a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing proposed by the present invention.
  • FIG3 is a schematic diagram of the disassembled structure of a limiting mechanism of a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing proposed by the present invention.
  • FIG4 is a schematic diagram of the disassembled structure of a wire guide mechanism of a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing proposed by the present invention.
  • FIG5 is a schematic diagram of the disassembled structure of a wire drawing mechanism of a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing proposed by the present invention.
  • the present invention discloses a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing, which is mainly used in 3D printing scenarios.
  • a wire feeding mechanism suitable for molten deposition additive manufacturing of flexible wires comprises a supporting shell 1, a melting nozzle 3 is arranged at the lower end of the supporting shell 1, a hook 4 is connected to the top inner wall of the supporting shell 1, a connecting rod 6 is connected to the inner wall of one side of the supporting shell 1, a wire drawing mechanism 5 is connected to one end of the connecting rod 6, the wire drawing mechanism 5 is located below the hook 4, a limiting mechanism 7 and a wire guiding mechanism 8 are connected to the inner wall of one side of the supporting shell 1, the limiting mechanism 7 is located below the wire drawing mechanism 5, the wire guiding mechanism 8 is located below the limiting mechanism 7, and the wire drawing mechanism 50 comprises a support 43, the support 43 is connected to the connecting rod 6, and the support 43 An electric slide groove 42 is provided on the inner wall of the top end, and an electric slider 41 is movably connected to the inner wall of the electric slide groove 42.
  • the outer wall of the top end of the electric slider 41 is connected to the sixth bracket 38.
  • a plurality of third connecting shafts 40 are provided on the inner wall of the sixth bracket 38.
  • the outer walls of the plurality of third connecting shafts 40 are sleeved with a fourth roller 39.
  • a wire material 2 is provided on the hook 4, and the wire material 2 passes through the limiting mechanism 7 and the wire guiding mechanism 8 at the same time.
  • the wire guiding mechanism 8 includes a limit block 21, and a third connecting rod 20 is arranged on both sides of the limit block 21, and the third connecting rod 20 is connected to the inner wall of the support shell 1.
  • the wire guiding mechanism 8 includes a third roller 23, and the outer wall of the third roller 23 is provided with multiple rubber pads 22 with equal density, and the wire material 2 is located between the rubber pad 22 and the limit block 21.
  • a gear 24 is connected to an outer wall of one side of the third roller 23
  • a second gear 27 is clamped to an outer wall of the gear 24
  • a second clamping block 26 is connected to an outer wall of one side of the second gear 27
  • a motor 25 is connected to one end of the second clamping block 26 .
  • the inner wall of the second clamping block 26 is movably connected with the fifth bracket 34, and the inner walls on both sides of the fifth bracket 34 are provided with connecting seats 37, and the connecting seats 37 are respectively connected to the gear 24 and the third roller 23, and the outer wall of one side of the fifth bracket 34 is provided with a third bracket 28, and the third bracket 28 is connected to the motor 25.
  • the outer wall of the fifth bracket 34 is movably connected with the fourth bracket 30, and the inner wall of one side of the fourth bracket 30 is provided with a second gas rod 31, and the second gas rod 31 is also connected to the fifth bracket 34.
  • controlling the telescopic length of the second gas rod 31 can further control the position between the limit block 21 and the rubber pad 22 on the third roller 23, so that the wire guiding mechanism 8 can be adapted to different types of wires 2.
  • the rubber pad 22 can ensure that the third roller 23 is in close contact with the wire 2, while also protecting the wire 2 made of flexible wire from damage during wire guiding, thereby preventing the wire 2 from being deformed under the extrusion of the third roller 23.
  • the outer walls of both sides of the fifth bracket 34 are provided with clamping strips 29
  • the inner walls of both sides of the fourth bracket 30 are provided with clamping grooves 32
  • the fifth bracket 34 is movably connected to the fourth bracket 30 through the clamping strips 29 and the clamping grooves 32 .
  • a support plate 36 is connected to the outer wall of one side of the fifth bracket 34, and a slider 35 is provided at the top of the support plate 36.
  • the top of the fourth bracket 30 is connected to the top slide groove 33, and the slider 35 is movably clamped in the interior of the top slide groove 33, and is clamped to the inner wall of the fifth bracket 34 through the second clamping block 26, thereby ensuring the position of the second gear 27 and ensuring that the second gear 27 can perfectly engage with the gear 24.
  • the slider 35 is clamped in the interior of the top slide groove 33, and the clamping strips 29 on both sides are clamped in the interior of the clamping groove 32, thereby limiting the three positions of the third roller 23, ensuring that the third roller 23 will not cause loosening and displacement under long-term use, preventing the third roller 23 from being separated from the clamping position with the limit block 21, and ensuring the service life of the wire feeding mechanism.
  • the limiting mechanism 7 includes a bracket 10 and a second bracket 16, and the outer wall of one side of the bracket 10 is connected to the second connecting rod 9, the second connecting rod 9 is connected to the supporting shell 1, and the inner wall of the bracket 10 is provided with a connecting shaft 11, and the outer wall of the connecting shaft 11 is sleeved with a roller 12.
  • ball bearings 15 are provided on the inner walls of both sides of the second bracket 16, a clamping block 13 is clamped on the inner wall of the ball bearing 15, a second connecting shaft 14 is connected to one side of the clamping block 13, a second roller 18 is sleeved on the outer wall of the second connecting shaft 14, and soft bumps 19 are provided on the outer wall of the second roller 18 with equal density, a gas rod 17 is connected to one side of the second bracket 16, and the other side of the gas rod 17 is connected to the support shell 1, and a limiting mechanism 7 is provided to act on both sides of the wire 2, so that the wire 2 accurately enters the wire guide mechanism 8, To avoid the wire 2 being dislocated and causing the wire guiding mechanism 8 to fail to guide the wire normally, soft bumps 19 are arranged at equal density on the outer wall of the second roller 18.
  • the soft bumps 19 When the wire 2 is limited, when it contacts the soft bumps 19, it will drive the second roller 18 to rotate. Under the action of the ball bearing 15, the friction force on the second roller 18 during rotation can be reduced. During the rotation of the second roller 18, the soft bumps 19 can be intermittently separated from the wire 2, thereby avoiding long-term contact with the wire 2 to cause wear on the surface of the wire 2.
  • the electric slider 41 in the wire pulling mechanism 5 drives the sixth bracket 38 to move along the electric slide groove 42 on the support 43.
  • the fourth roller 39 just contacts the bottom end of the wire 2 on the hook 4.
  • the electric slider 41 circulates on the electric slide groove 42, which also helps the wire 2 to open the agglomeration position.
  • the electric slider 41 slides to the lower end of the electric slide groove 42, it will be disconnected from the wire 2, thereby avoiding the situation where the circular movement causes the wire 2 to twist and cause knotting.
  • the technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above technical features.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Wire Processing (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

Disclosed in the present invention is a wire feeding mechanism suitable for fused deposition additive manufacturing of a flexible wire. The wire feeding mechanism comprises a supporting housing, wherein the lower end of the supporting housing is provided with a fusion spray head; a hook is connected to an inner wall of the top end of the supporting housing; a connecting rod is connected to an inner wall of one side of the supporting housing; a wire drawing mechanism is connected to one end of the connecting rod, and is located at the lower end of the hook; a limiting mechanism and a wire guiding mechanism are connected to the inner wall of one side of the supporting housing; the limiting mechanism is located at the lower end of the wire drawing mechanism; the wire guiding mechanism is located at the lower end of the limiting mechanism; the wire drawing mechanism comprises a supporting seat; the supporting seat is connected to the connecting rod; an inner wall of the top end of the supporting seat is provided with an electric sliding groove; an electric slider is movably engaged with an inner wall of the electric sliding groove; and a sixth support is connected to an outer wall of the top end of the electric slider. The wire feeding mechanism suitable for fused deposition additive manufacturing of a flexible wire disclosed in the present invention has the effect of reducing the risk of agglomeration at a joint between a wire and the hook.

Description

一种适用于柔性丝材熔融沉积增材制造的进丝机构A wire feeding mechanism suitable for flexible wire fused deposition additive manufacturing 技术领域Technical Field
本发明涉及3D打印技术领域，尤其涉及一种适用于柔性丝材熔融沉积增材制造的进丝机构。The present invention relates to the technical field of 3D printing, and in particular to a wire feeding mechanism suitable for flexible wire material molten deposition additive manufacturing.
背景技术Background technique
目前，增材制造(AdditiveManufacturing，AM，俗称3D打印)技术成为国内外研究热点，该技术具有快速、高效、柔性等特点，不需要传统的模具、刀具、夹具，而是利用三维设计数据在增材制造设备上高效而精确地制造出任意复杂形状及结构的零部件。增材制造技术可加工的原材料种类较为广泛。非金属材料(主要是有机高分子材料)增材制造技术已有较成熟的应用。At present, additive manufacturing (AM, commonly known as 3D printing) technology has become a hot research topic at home and abroad. This technology is fast, efficient, and flexible. It does not require traditional molds, tools, and fixtures. Instead, it uses three-dimensional design data to efficiently and accurately manufacture parts of any complex shape and structure on additive manufacturing equipment. Additive manufacturing technology can process a wide range of raw materials. Additive manufacturing technology for non-metallic materials (mainly organic polymer materials) has been relatively maturely applied.
现有技术中，为了防止绕丝，会在装置上设置一个挂钩用于分线，但当打印相对较软的柔性材料时，比如TPU材料，与挂钩接触的位置很有可能会造成临时堆积并形成结块，从而影响到进丝进度，甚至直接影响到打印效果。In the prior art, in order to prevent wire entanglement, a hook is set on the device for wire separation. However, when printing relatively soft flexible materials, such as TPU materials, the position in contact with the hook is likely to cause temporary accumulation and form a lump, thereby affecting the wire feeding progress and even directly affecting the printing effect.
发明内容Summary of the invention
为解决上述问题，本发明公开了本发明公开一种适用于柔性丝材熔融沉积增材制造的进丝机构，旨在解决打印柔性材料时，与挂钩接触的位置很有可能会造成临时堆积并形成结块的技术问题。To solve the above problems, the present invention discloses a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing, aiming to solve the technical problem that when printing flexible materials, the position in contact with the hook is likely to cause temporary accumulation and form agglomerates.
为了实现上述目的，本发明采用了如下技术方案： In order to achieve the above object, the present invention adopts the following technical solutions:
一种适用于柔性丝材熔融沉积增材制造的进丝机构，包括支撑外壳，所述支撑外壳的下端设置有熔融喷头，所述支撑外壳的顶端内壁连接有挂钩，所述支撑外壳的一侧内壁连接有连接杆，所述连接杆的一端连接有拨丝机构，所述拨丝机构位于挂钩的下端，所述支撑外壳的一侧内壁连接有限位机构和导丝机构，所述限位机构位于拨丝机构的下方，所述导丝机构位于限位机构的下方，所述拨丝机构包括支座，所述支座与连接杆相连，所述支座的顶端内壁设置有电滑槽，所述电滑槽的内壁活动卡接有电滑块，所述电滑块的顶端外壁连接有第六支架，所述第六支架的内壁设置有多个第三连接轴，多个所述第三连接轴的外壁套接有第四滚轮，所述挂钩上设置有丝材，所述丝材同时经过限位机构和导丝机构。The cam is provided with a plurality of third connecting shafts, and the outer wall of the plurality of third connecting shafts is provided with a fourth connecting wheel, and the plurality of third connecting shafts are provided with a plurality of connecting wheels, and the plurality of connecting wheels are provided with a plurality of connecting wheels.
通过设置有拨丝机构，由于丝材为柔性丝材，当丝材挂在挂钩上，并在导丝机构的作用下向熔融喷头位置传送时，与挂钩接触的位置很有可能会造成临时堆积并造成结块，通过拨丝机构中的电滑块带动第六支架顺着支座上的电滑槽进行移动，当电滑块移动至电滑槽的高位置时，第四滚轮刚好与挂钩上丝材的底端相接触，在丝材的运动下，也会带动第四滚轮进行运动，从而作用于丝材与挂钩的连接处，降低丝材结块的风险，同时通过电滑块在电滑槽上循环运动，也起到了辅助丝材打开结块位置的作用，当电滑块滑到电滑槽的下端时，会与丝材脱离连接，从而避免循环移动带着丝材扭转造成打结的情况发生。By providing a wire drawing mechanism, since the wire is flexible, when the wire is hung on the hook and transmitted to the melting nozzle position under the action of the wire guiding mechanism, the position in contact with the hook is likely to cause temporary accumulation and cause agglomeration, and the electric slider in the wire drawing mechanism drives the sixth bracket to move along the electric slide groove on the support. When the electric slider moves to the high position of the electric slide groove, the fourth roller just contacts the bottom end of the wire on the hook, and the movement of the wire will also drive the fourth roller to move, thereby acting on the connection between the wire and the hook, reducing the risk of wire agglomeration, and at the same time, the circulating movement of the electric slider on the electric slide groove also plays a role in assisting the wire to open the agglomeration position, and when the electric slider slides to the lower end of the electric slide groove, it will be disconnected from the wire, thereby avoiding the situation where the circular movement causes the wire to twist and cause knotting.
在一个优选的方案中，所述导丝机构包括限位块，所述限位块的两侧设置有第三连接杆，所述第三连接杆与支撑外壳的内壁相连，所述导丝机构包括第三滚轮，所述第三滚轮的外壁等密度设置有多个橡胶垫，所述丝材位于橡胶垫与限位块之间，所述第三滚轮的一侧外壁连接有齿轮，所述齿轮的外壁卡接有第二齿轮，所述第二齿轮的一侧外壁连接有第二夹块，所述第二夹块的一端连接有电机，所述第二夹块的内壁活动卡接有第五支架，所述第五支架的两侧内壁设置有连接座，所述连接座分别与齿轮、第三滚轮相连，所述第五支架的一侧外壁设置有第三支架，所述第三支架与电机相连，所述第五支架的外壁活动连接有第四支架，所述第四支架的一侧内壁设置有第二气杆，所述第二气杆同时与第五支架相连。In a preferred embodiment, the guide wire mechanism includes a limit block, and a third connecting rod is arranged on both sides of the limit block, and the third connecting rod is connected to the inner wall of the supporting shell. The wire guiding mechanism includes a third roller, the outer wall of the third roller is provided with a plurality of rubber pads of equal density, the wire material is located between the rubber pad and the limit block, the outer wall of one side of the third roller is connected with a gear, the outer wall of the gear is clamped with a second gear, the outer wall of one side of the second gear is connected with a second clamping block, one end of the second clamping block is connected with a motor, the inner wall of the second clamping block is movably clamped with a fifth bracket, the inner walls of both sides of the fifth bracket are provided with connecting seats, the connecting seats are respectively connected with the gear and the third roller, the outer wall of one side of the fifth bracket is provided with a third bracket, the third bracket is connected to the motor, the outer wall of the fifth bracket is movably connected with a fourth bracket, the inner wall of one side of the fourth bracket is provided with a second gas rod, and the second gas rod is simultaneously connected to the fifth bracket.
通过设置有第二气杆，控制第二气杆的伸缩长度可进一步控制限位块与第三滚轮上的橡胶垫之间的位置，从而使导丝机构可适应于不同型号的丝材使用，同时通过设置的橡胶垫可在保证第三滚轮与丝材紧密接触的同时，也保护了材质为柔性丝材的丝材在导丝时不受到伤害，避免丝材在第三滚轮的挤压下导致变形。By providing a second gas rod and controlling the telescopic length of the second gas rod, the position between the limit block and the rubber pad on the third roller can be further controlled, so that the wire guiding mechanism can be adapted to the use of wires of different types. At the same time, the rubber pad can ensure that the third roller is in close contact with the wire, while protecting the wire made of flexible wire from damage during wire guiding, thereby preventing the wire from being deformed due to the squeezing of the third roller.
进一步改进，所述第五支架的两侧外壁设置有卡条，所述第四支架的两侧内壁设置有卡槽，所述第五支架通过卡条、卡槽相互卡接与第四支架活动连接，所述第五支架的一侧外壁连接有支板，所述支板的顶端设置有滑块，所述第四支架的顶端连接有顶部滑槽，所述滑块活动卡接在顶部滑槽的内部。Further improvement, the outer walls on both sides of the fifth bracket are provided with clamping strips, the inner walls on both sides of the fourth bracket are provided with clamping grooves, the fifth bracket is movably connected with the fourth bracket through the clamping strips and the clamping grooves, one side outer wall of the fifth bracket is connected with a support plate, the top of the support plate is provided with a slider, the top of the fourth bracket is connected with a top slide groove, and the slider is movably clamped inside the top slide groove.
通过第二夹块卡接在第五支架内壁，从而保证了第二齿轮的位置，保证第二齿轮能与齿轮完美卡合，同时通过滑块卡接在顶部滑槽内部，两侧的卡条卡接在卡槽内部，从而对第三滚轮的三个方位都进行限位，保障在长时间的使用下第三滚轮都不会造成松动和位移，避免第三滚轮脱离与限位块的夹持位置，保障进丝机构的使用寿命。The second clamping block is clamped on the inner wall of the fifth bracket to ensure the position of the second gear and ensure that the second gear can be perfectly engaged with the gear. At the same time, the slider is clamped inside the top slide slot, and the clamping strips on both sides are clamped inside the slot, so that the three positions of the third roller are adjusted. The limit block is used to ensure that the third roller will not loosen or move during long-term use, thereby preventing the third roller from escaping from the clamping position with the limit block and ensuring the service life of the wire feeding mechanism.
进一步改进，所述限位机构包括支架和第二支架，所述支架的一侧外壁连接有第二连接杆，所述第二连接杆与支撑外壳相连，所述支架的内壁设置有连接轴，所述连接轴的外壁套接有滚轮，所述第二支架的两侧内壁设置有滚珠轴承，所述滚珠轴承的内壁卡接有夹块，所述夹块的一侧连接有第二连接轴，所述第二连接轴的外壁套接有第二滚轮，所述第二滚轮的外壁等密度设置有软性凸块，所述第二支架的一侧连接有气杆，所述气杆的另一侧与支撑外壳相连。Further improvement, the limiting mechanism includes a bracket and a second bracket, an outer wall of one side of the bracket is connected to a second connecting rod, the second connecting rod is connected to the supporting shell, the inner wall of the bracket is provided with a connecting shaft, the outer wall of the connecting shaft is sleeved with a roller, the inner walls of both sides of the second bracket are provided with ball bearings, the inner walls of the ball bearings are clamped with a clamping block, one side of the clamping block is connected to the second connecting shaft, the outer wall of the second connecting shaft is sleeved with a second roller, the outer wall of the second roller is provided with soft bumps of equal density, one side of the second bracket is connected to a gas rod, and the other side of the gas rod is connected to the supporting shell.
通过设置有限位机构，作用于丝材的两侧，使丝材精准的进入到导丝机构，避免丝材脱位导致导丝机构不能正常导丝，同时通过在第二滚轮的外壁等密度设置软性凸块，从而当对丝材进行限位时，当接触到软性凸块时，则会带动第二滚轮进行转动，在滚珠轴承的作用下，能降低第二滚轮转动时所受的摩擦力，通过在第二滚轮转动过程中软性凸块能间断性的脱离丝材，则避免了与丝材长期接触对丝材的表面造成磨损。By setting a limiting mechanism to act on both sides of the wire, the wire can be accurately entered into the wire guiding mechanism to avoid dislocation of the wire, which may cause the wire guiding mechanism to fail to guide the wire normally. At the same time, soft protrusions are set at equal density on the outer wall of the second roller, so that when the wire is limited, when it contacts the soft protrusions, it will drive the second roller to rotate. Under the action of the ball bearing, the friction force of the second roller during rotation can be reduced. The soft protrusions can be intermittently separated from the wire during the rotation of the second roller, thereby avoiding wear on the surface of the wire due to long-term contact with the wire.
本发明的工作原理是：工作原理使用时，通过拨丝机构中的电滑块带动第六支架顺着支座上的电滑槽进行移动，当电滑块移动至电滑槽的高位置时，第四滚轮刚好与挂钩上丝材的底端相接触，在丝材的运动下，也会带动第四滚轮进行运动，从而作用于丝材与挂钩的连接处，降低丝材结块的风险，同时通过电滑块在电滑槽上循环运动，也起到了辅助丝材打开结块位置的作用，当电滑块滑到电滑槽的下端时，会与丝材脱离连接，从而避免循环移动带着丝材扭转造成打结的情况发生。The working principle of the present invention is as follows: when in use, the electric slider in the wire drawing mechanism drives the sixth bracket to move along the electric slide groove on the support. When the electric slider moves to the high position of the electric slide groove, the fourth roller just contacts the bottom end of the wire on the hook. Under the movement of the wire, the fourth roller is also driven to move, thereby acting on the connection between the wire and the hook to reduce the risk of wire agglomeration. At the same time, the electric slider circulates on the electric slide groove to assist the wire in opening the agglomeration position. When the electric slider slides to the lower end of the electric slide groove When the wire is slid into the loop, it will be disconnected from the wire, thus avoiding the situation where the wire is twisted and tangled due to the circular movement.
由上可知，本发明的有益效果是：As can be seen from the above, the beneficial effects of the present invention are:
1、适用于柔性丝材熔融沉积增材制造的进丝机构具有降低丝材与挂钩的连接处结块的风险。1. The wire feeding mechanism suitable for flexible wire fused deposition additive manufacturing has the function of reducing the risk of agglomeration at the connection between the wire and the hook.
2、保证打印的效果和提高工作效率。2. Ensure printing effect and improve work efficiency.
3、延长设备的使用寿命。3. Extend the service life of the equipment.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本发明提出的一种适用于柔性丝材熔融沉积增材制造的进丝机构的整体外观结构示意图。FIG1 is a schematic diagram of the overall appearance structure of a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing proposed by the present invention.
图2为本发明提出的一种适用于柔性丝材熔融沉积增材制造的进丝机构的内部整体结构示意图。FIG2 is a schematic diagram of the overall internal structure of a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing proposed by the present invention.
图3为本发明提出的一种适用于柔性丝材熔融沉积增材制造的进丝机构的限位机构拆分结构示意图。FIG3 is a schematic diagram of the disassembled structure of a limiting mechanism of a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing proposed by the present invention.
图4为本发明提出的一种适用于柔性丝材熔融沉积增材制造的进丝机构的导丝机构拆分结构示意图。FIG4 is a schematic diagram of the disassembled structure of a wire guide mechanism of a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing proposed by the present invention.
图5为本发明提出的一种适用于柔性丝材熔融沉积增材制造的进丝机构的拨丝机构拆分结构示意图。FIG5 is a schematic diagram of the disassembled structure of a wire drawing mechanism of a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing proposed by the present invention.
图中：1、支撑外壳；2、丝材；3、熔融喷头；4、挂钩；5、拨丝机构；6、连接杆；7、限位机构；8、导丝机构；9、第二连接杆；10、支架；11、连接轴；12、滚轮；13、夹块；14、第二连接轴；15、滚珠轴承；16、第二支架；17、气杆；18、第二滚轮；19、软性凸块；20、第三连接杆；21、限位块；22、橡胶垫；23、第三滚轮；24、齿轮；25、电机；26、第二夹块；27、第二齿轮；28、第三支架；29、卡条；30、第四支架；31、第二气杆；32、卡槽；33、顶部滑槽；34、第五支架；35、滑块；36、支板；37、连接座；38、第六支架；39、第四滚轮；40、第三连接轴；41、电滑块；42、电滑槽；43、支座。In the figure: 1. Support shell; 2. Wire; 3. Melting nozzle; 4. Hook; 5. Wire drawing mechanism; 6. Connecting rod; 7. Limiting mechanism; 8. Wire guiding mechanism; 9. Second connecting rod; 10. Bracket; 11. Connecting shaft; 12. Roller; 13. Clamping block; 14. Second connecting shaft; 15. Ball bearing; 16, second bracket; 17, gas rod; 18, second roller; 19, soft bump; 20, third connecting rod; 21, limit block; 22, rubber pad; 23, third roller; 24, gear; 25, motor; 26, second clamping block; 27, second gear; 28, third bracket; 29, clamping strip; 30, fourth bracket; 31, second gas rod; 32, clamping slot; 33, top slide; 34, fifth bracket; 35, slider; 36, support plate; 37, connecting seat; 38, sixth bracket; 39, fourth roller; 40, third connecting shaft; 41, electric slider; 42, electric slide; 43, support.
具体实施方式Detailed ways
下面结合附图和具体实施方式，进一步阐明本发明，应理解下述具体实施方式仅用于说明本发明而不用于限制本发明的范围。需要说明的是，下面描述中使用的词语“前”、“后”、“左”、“右”、“上”和“下”指的是附图中的方向，词语“内”和“外”分别指的是朝向或远离特定部件几何中心的方向。The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.
本发明公开的一种适用于柔性丝材熔融沉积增材制造的进丝机构主要应用于3D打印的场景。The present invention discloses a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing, which is mainly used in 3D printing scenarios.
参照图1、图2和图5，一种适用于柔性丝材熔融沉积增材制造的进丝机构，包括支撑外壳1，支撑外壳1的下端设置有熔融喷头3，支撑外壳1的顶端内壁连接有挂钩4，支撑外壳1的一侧内壁连接有连接杆6，连接杆6的一端连接有拨丝机构5，拨丝机构5位于挂钩4的下方，支撑外壳1的一侧内壁连接有限位机构7和导丝机构8，限位机构7位于拨丝机构5的下方，导丝机构8位于限位机构7的下方，拨丝机构50包括支座43，支座43与连接杆6相连，支座43顶端内壁设置有电滑槽42，电滑槽42的内壁活动卡接有电滑块41，电滑块41的顶端外壁连接有第六支架38，第六支架38的内壁设置有多个第三连接轴40，多个第三连接轴40的外壁套接有第四滚轮39，挂钩4上设置有丝材2，丝材2同时经过限位机构7和导丝机构8。1, 2 and 5, a wire feeding mechanism suitable for molten deposition additive manufacturing of flexible wires comprises a supporting shell 1, a melting nozzle 3 is arranged at the lower end of the supporting shell 1, a hook 4 is connected to the top inner wall of the supporting shell 1, a connecting rod 6 is connected to the inner wall of one side of the supporting shell 1, a wire drawing mechanism 5 is connected to one end of the connecting rod 6, the wire drawing mechanism 5 is located below the hook 4, a limiting mechanism 7 and a wire guiding mechanism 8 are connected to the inner wall of one side of the supporting shell 1, the limiting mechanism 7 is located below the wire drawing mechanism 5, the wire guiding mechanism 8 is located below the limiting mechanism 7, and the wire drawing mechanism 50 comprises a support 43, the support 43 is connected to the connecting rod 6, and the support 43 An electric slide groove 42 is provided on the inner wall of the top end, and an electric slider 41 is movably connected to the inner wall of the electric slide groove 42. The outer wall of the top end of the electric slider 41 is connected to the sixth bracket 38. A plurality of third connecting shafts 40 are provided on the inner wall of the sixth bracket 38. The outer walls of the plurality of third connecting shafts 40 are sleeved with a fourth roller 39. A wire material 2 is provided on the hook 4, and the wire material 2 passes through the limiting mechanism 7 and the wire guiding mechanism 8 at the same time.
参照图4，在一个优选的实施方式中，导丝机构8包括限位块21，限位块21的两侧设置有第三连接杆20，第三连接杆20与支撑外壳1的内壁相连，导丝机构8包括第三滚轮23，第三滚轮23的外壁等密度设置有多个橡胶垫22，丝材2位于橡胶垫22与限位块21之间。Referring to Figure 4, in a preferred embodiment, the wire guiding mechanism 8 includes a limit block 21, and a third connecting rod 20 is arranged on both sides of the limit block 21, and the third connecting rod 20 is connected to the inner wall of the support shell 1. The wire guiding mechanism 8 includes a third roller 23, and the outer wall of the third roller 23 is provided with multiple rubber pads 22 with equal density, and the wire material 2 is located between the rubber pad 22 and the limit block 21.
参照图4，在一个优选的实施方式中，第三滚轮23的一侧外壁连接有齿轮24，齿轮24的外壁卡接有第二齿轮27，第二齿轮27的一侧外壁连接有第二夹块26，第二夹块26的一端连接有电机25。4 , in a preferred embodiment, a gear 24 is connected to an outer wall of one side of the third roller 23 , a second gear 27 is clamped to an outer wall of the gear 24 , a second clamping block 26 is connected to an outer wall of one side of the second gear 27 , and a motor 25 is connected to one end of the second clamping block 26 .
参照图4，在一个优选的实施方式中，第二夹块26的内壁活动卡接有第五支架34，第五支架34的两侧内壁设置有连接座37，连接座37分别与齿轮24、第三滚轮23相连，第五支架34的一侧外壁设置有第三支架28，第三支架28与电机25相连，第五支架34的外壁活动连接有第四支架30，第四支架30的一侧内壁设置有第二气杆31，第二气杆31同时与第五支架34相连，通过设置有第二气杆31，控制第二气杆31的伸缩长度可进一步控制限位块21与第三滚轮23上的橡胶垫22之间的位置，从而使导丝机构8可适应于不同型号的丝材2使用，同时通过设置的橡胶垫22可在保证第三滚轮23与丝材2紧密接触的同时，也保护了材质为柔性丝材的丝材2在导丝时不受到伤害，避免丝材2在第三滚轮23的挤压下导致变形。 4 , in a preferred embodiment, the inner wall of the second clamping block 26 is movably connected with the fifth bracket 34, and the inner walls on both sides of the fifth bracket 34 are provided with connecting seats 37, and the connecting seats 37 are respectively connected to the gear 24 and the third roller 23, and the outer wall of one side of the fifth bracket 34 is provided with a third bracket 28, and the third bracket 28 is connected to the motor 25. The outer wall of the fifth bracket 34 is movably connected with the fourth bracket 30, and the inner wall of one side of the fourth bracket 30 is provided with a second gas rod 31, and the second gas rod 31 is also connected to the fifth bracket 34. By providing the second gas rod 31, controlling the telescopic length of the second gas rod 31 can further control the position between the limit block 21 and the rubber pad 22 on the third roller 23, so that the wire guiding mechanism 8 can be adapted to different types of wires 2. At the same time, the rubber pad 22 can ensure that the third roller 23 is in close contact with the wire 2, while also protecting the wire 2 made of flexible wire from damage during wire guiding, thereby preventing the wire 2 from being deformed under the extrusion of the third roller 23.
参照图4，在一个优选的实施方式中，第五支架34的两侧外壁设置有卡条29，第四支架30的两侧内壁设置有卡槽32，第五支架34通过卡条29、卡槽32相互卡接与第四支架30活动连接。4 , in a preferred embodiment, the outer walls of both sides of the fifth bracket 34 are provided with clamping strips 29 , the inner walls of both sides of the fourth bracket 30 are provided with clamping grooves 32 , and the fifth bracket 34 is movably connected to the fourth bracket 30 through the clamping strips 29 and the clamping grooves 32 .
参照图4，在一个优选的实施方式中，第五支架34的一侧外壁连接有支板36，支板36的顶端设置有滑块35，第四支架30的顶端连接有顶部滑槽33，滑块35活动卡接在顶部滑槽33的内部，通过第二夹块26卡接在第五支架34内壁，从而保证了第二齿轮27的位置，保证第二齿轮27能与齿轮24完美卡合，同时通过滑块35卡接在顶部滑槽33内部，两侧的卡条29卡接在卡槽32内部，从而对第三滚轮23的三个方位都进行限位，保障在长时间的使用下第三滚轮23都不会造成松动和位移，避免第三滚轮23脱离与限位块21的夹持位置，保障进丝机构的使用寿命。Referring to Figure 4, in a preferred embodiment, a support plate 36 is connected to the outer wall of one side of the fifth bracket 34, and a slider 35 is provided at the top of the support plate 36. The top of the fourth bracket 30 is connected to the top slide groove 33, and the slider 35 is movably clamped in the interior of the top slide groove 33, and is clamped to the inner wall of the fifth bracket 34 through the second clamping block 26, thereby ensuring the position of the second gear 27 and ensuring that the second gear 27 can perfectly engage with the gear 24. At the same time, the slider 35 is clamped in the interior of the top slide groove 33, and the clamping strips 29 on both sides are clamped in the interior of the clamping groove 32, thereby limiting the three positions of the third roller 23, ensuring that the third roller 23 will not cause loosening and displacement under long-term use, preventing the third roller 23 from being separated from the clamping position with the limit block 21, and ensuring the service life of the wire feeding mechanism.
参照图3，在一个优选的实施方式中，限位机构7包括支架10和第二支架16，支架10的一侧外壁连接有第二连接杆9，第二连接杆9与支撑外壳1相连，支架10的内壁设置有连接轴11，连接轴11的外壁套接有滚轮12。Referring to Figure 3, in a preferred embodiment, the limiting mechanism 7 includes a bracket 10 and a second bracket 16, and the outer wall of one side of the bracket 10 is connected to the second connecting rod 9, the second connecting rod 9 is connected to the supporting shell 1, and the inner wall of the bracket 10 is provided with a connecting shaft 11, and the outer wall of the connecting shaft 11 is sleeved with a roller 12.
参照图3，在一个优选的实施方式中，第二支架16的两侧内壁设置有滚珠轴承15，滚珠轴承15的内壁卡接有夹块13，夹块13的一侧连接有第二连接轴14，第二连接轴14的外壁套接有第二滚轮18，第二滚轮18的外壁等密度设置有软性凸块19，第二支架16的一侧连接有气杆17，气杆17的另一侧与支撑外壳1相连，通过设置有限位机构7，作用于丝材2的两侧，使丝材2精准的进入到导丝机构8， 避免丝材2脱位导致导丝机构8不能正常导丝，同时通过在第二滚轮18的外壁等密度设置软性凸块19，从而当对丝材2进行限位时，当接触到软性凸块19时，则会带动第二滚轮18进行转动，在滚珠轴承15的作用下，能降低第二滚轮18转动时所受的摩擦力，通过在第二滚轮18转动过程中软性凸块19能间断性的脱离丝材2，则避免了与丝材2长期接触对丝材2的表面造成磨损。3 , in a preferred embodiment, ball bearings 15 are provided on the inner walls of both sides of the second bracket 16, a clamping block 13 is clamped on the inner wall of the ball bearing 15, a second connecting shaft 14 is connected to one side of the clamping block 13, a second roller 18 is sleeved on the outer wall of the second connecting shaft 14, and soft bumps 19 are provided on the outer wall of the second roller 18 with equal density, a gas rod 17 is connected to one side of the second bracket 16, and the other side of the gas rod 17 is connected to the support shell 1, and a limiting mechanism 7 is provided to act on both sides of the wire 2, so that the wire 2 accurately enters the wire guide mechanism 8, To avoid the wire 2 being dislocated and causing the wire guiding mechanism 8 to fail to guide the wire normally, soft bumps 19 are arranged at equal density on the outer wall of the second roller 18. When the wire 2 is limited, when it contacts the soft bumps 19, it will drive the second roller 18 to rotate. Under the action of the ball bearing 15, the friction force on the second roller 18 during rotation can be reduced. During the rotation of the second roller 18, the soft bumps 19 can be intermittently separated from the wire 2, thereby avoiding long-term contact with the wire 2 to cause wear on the surface of the wire 2.
工作原理：使用时，通过拨丝机构5中的电滑块41带动第六支架38顺着支座43上的电滑槽42进行移动，当电滑块41移动至电滑槽42的高位置时，第四滚轮39刚好与挂钩4上丝材2的底端相接触，在丝材2的运动下，也会带动第四滚轮39进行运动，从而作用于丝材2与挂钩4的连接处，降低丝材2结块的风险，同时通过电滑块41在电滑槽42上循环运动，也起到了辅助丝材2打开结块位置的作用，当电滑块41滑到电滑槽42的下端时，会与丝材2脱离连接，从而避免循环移动带着丝材2扭转造成打结的情况发生。Working principle: When in use, the electric slider 41 in the wire pulling mechanism 5 drives the sixth bracket 38 to move along the electric slide groove 42 on the support 43. When the electric slider 41 moves to the high position of the electric slide groove 42, the fourth roller 39 just contacts the bottom end of the wire 2 on the hook 4. Under the movement of the wire 2, the fourth roller 39 will also be driven to move, thereby acting on the connection between the wire 2 and the hook 4, reducing the risk of the wire 2 agglomerating. At the same time, the electric slider 41 circulates on the electric slide groove 42, which also helps the wire 2 to open the agglomeration position. When the electric slider 41 slides to the lower end of the electric slide groove 42, it will be disconnected from the wire 2, thereby avoiding the situation where the circular movement causes the wire 2 to twist and cause knotting.
本发明方案所公开的技术手段不仅限于上述实施方式所公开的技术手段，还包括由以上技术特征任意组合所组成的技术方案。 The technical means disclosed in the scheme of the present invention are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical schemes composed of any combination of the above technical features.

Claims (8)

  1. 一种适用于柔性丝材熔融沉积增材制造的进丝机构，包括支撑外壳(1)，其特征在于，所述支撑外壳(1)的下端设置有熔融喷头(3)，所述支撑外壳(1)的顶端内壁连接有挂钩(4)，所述支撑外壳(1)的一侧内壁连接有连接杆(6)，所述连接杆(6)的一端连接有拨丝机构(5)，所述拨丝机构(5)位于挂钩(4)的下方，所述支撑外壳(1)的一侧内壁连接有限位机构(7)和导丝机构(8)，所述限位机构(7)位于拨丝机构(5)的下方，所述导丝机构(8)位于限位机构(7)的下方，所述拨丝机构(50)包括支座(43)，所述支座(43)与连接杆(6)相连，所述支座(43)的顶端内壁设置有电滑槽(42)，所述电滑槽(42)的内壁活动卡接有电滑块(41)，所述电滑块(41)的顶端外壁连接有第六支架(38)，所述第六支架(38)的内壁设置有多个第三连接轴(40)，每所述第三连接轴(40)的外壁均套接有第四滚轮(39)，所述挂钩(4)上设置有丝材(2)，所述丝材(2)依次经过限位机构(7)和导丝机构(8)。A wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing comprises a support shell (1), characterized in that a molten nozzle (3) is arranged at the lower end of the support shell (1), a hook (4) is connected to the top inner wall of the support shell (1), a connecting rod (6) is connected to the inner wall of one side of the support shell (1), one end of the connecting rod (6) is connected to a wire drawing mechanism (5), the wire drawing mechanism (5) is located below the hook (4), the inner wall of one side of the support shell (1) is connected to a limiting mechanism (7) and a wire guiding mechanism (8), the limiting mechanism (7) is located below the wire drawing mechanism (5), and the wire guiding mechanism (8) is located above the limiting mechanism (7). The wire drawing mechanism (50) is located below the structure (7), and includes a support (43), the support (43) is connected to the connecting rod (6), the top inner wall of the support (43) is provided with an electric slide groove (42), the inner wall of the electric slide groove (42) is movably connected with an electric slider (41), the top outer wall of the electric slider (41) is connected with a sixth bracket (38), the inner wall of the sixth bracket (38) is provided with a plurality of third connecting shafts (40), the outer wall of each of the third connecting shafts (40) is sleeved with a fourth roller (39), the hook (4) is provided with a wire material (2), and the wire material (2) passes through the limiting mechanism (7) and the wire guiding mechanism (8) in sequence.
  2. 根据权利要求1所述的一种适用于柔性丝材熔融沉积增材制造的进丝机构，其特征在于，所述导丝机构(8)包括限位块(21)，所述限位块(21)的两侧设置有第三连接杆(20)，所述第三连接杆(20)与支撑外壳(1)的内壁相连，限位块(21)旁设有第三滚轮(23)，所述第三滚轮(23)的外壁等密度设置有多个橡胶垫(22)，所述丝材(2)位于橡胶垫(22)与限位块(21)之间。According to claim 1, a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing is characterized in that the wire guiding mechanism (8) includes a limit block (21), and third connecting rods (20) are arranged on both sides of the limit block (21), and the third connecting rod (20) is connected to the inner wall of the supporting shell (1), and a third roller (23) is arranged next to the limit block (21), and a plurality of rubber pads (22) are arranged on the outer wall of the third roller (23) with equal density, and the wire (2) is located between the rubber pad (22) and the limit block (21).
  3. 根据权利要求2所述的一种适用于柔性丝材熔融沉积增材制造的进丝机构，其特征在于，所述第三滚轮(23)的一侧外壁连接有齿轮(24)，所述齿轮(24)的外壁卡接有第二齿轮(27)，所述第二齿轮(27)的一侧外壁连接有第二夹块(26)，所述第二夹块(26)的一端连接有电机(25)。According to claim 2, a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing is characterized in that a gear (24) is connected to an outer wall of one side of the third roller (23), a second gear (27) is clamped on the outer wall of the gear (24), a second clamping block (26) is connected to an outer wall of one side of the second gear (27), and one end of the second clamping block (26) is connected to a motor (25).
  4. 根据权利要求3所述的一种适用于柔性丝材熔融沉积增材制造的进丝机构，其特征在于，所述第二夹块(26)的内壁活动卡接有第五支架(34)，所述第五支架(34)的两侧内壁设置有连接座(37)，所述连接座(37)分别与齿轮(24)、第三滚轮(23)相连，所述第五支架(34)的一侧外壁设置有第三支架(28)，所述第三支架(28)与电机(25)相连，所述第五支架(34)的外壁活动连接有第四支架(30)，所述第四支架(30)的一侧内壁设置有第二气杆(31)，所述第二气杆(31)同时与第五支架(34)相连。According to claim 3, a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing is characterized in that the inner wall of the second clamping block (26) is movably connected with a fifth bracket (34), and the inner walls on both sides of the fifth bracket (34) are provided with connecting seats (37), and the connecting seats (37) are respectively connected to the gear (24) and the third roller (23), and the outer wall of one side of the fifth bracket (34) is provided with a third bracket (28), and the third bracket (28) is connected to the motor (25), and the outer wall of the fifth bracket (34) is movably connected with the fourth bracket (30), and the inner wall of one side of the fourth bracket (30) is provided with a second gas rod (31), and the second gas rod (31) is also connected to the fifth bracket (34).
  5. 根据权利要求4所述的一种适用于柔性丝材熔融沉积增材制造的进丝机构，其特征在于，所述第五支架(34)的两侧外壁设置有卡条(29)，所述第四支架(30)的两侧内壁设置有卡槽(32)，所述第五支架(34)通过卡条(29)、卡槽(32)相互卡接与第四支架(30)活动连接。According to claim 4, a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing is characterized in that the outer walls on both sides of the fifth bracket (34) are provided with clamping strips (29), and the inner walls on both sides of the fourth bracket (30) are provided with clamping grooves (32), and the fifth bracket (34) is movably connected to the fourth bracket (30) by mutually clamping the clamping strips (29) and the clamping grooves (32).
  6. 根据权利要求5所述的一种适用于柔性丝材熔融沉积增材制造的进丝机构，其特征在于，所述第五支架(34)的一侧外壁连接有支板(36)，所述支板(36)的顶端设置有滑块(35)，所述第四支架(30)的顶端连接有顶部滑槽(33)，所述滑块(35)活动卡接在顶部滑槽(33)的内部。According to claim 5, a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing is characterized in that a support plate (36) is connected to an outer wall of one side of the fifth bracket (34), a slider (35) is provided at the top of the support plate (36), and a top slide groove (33) is connected to the top of the fourth bracket (30), and the slider (35) is movably engaged in the interior of the top slide groove (33).
  7. 根据权利要求1所述的一种适用于柔性丝材熔融沉积增材制造的进丝机构，其特征在于，所述限位机构(7)包括支架(10)和第二支架(16)，所述支架(10)的一侧外壁连接有第二连接杆(9)，所述第二连接杆(9)与支撑外壳(1)相连，所述支架(10)的内壁设置有连接轴(11)，所述连接轴(11)的外壁套接有滚轮(12)。According to claim 1, a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing is characterized in that the limiting mechanism (7) includes a bracket (10) and a second bracket (16), a second connecting rod (9) is connected to an outer wall of one side of the bracket (10), and the second connecting rod (9) is connected to the supporting shell (1), and the inner wall of the bracket (10) is provided with a connecting shaft (11), and the outer wall of the connecting shaft (11) is sleeved with a roller (12).
  8. [根据细则91更正 30.06.2023]
    根据权利要求7所述的一种适用于柔性丝材熔融沉积增材制造的进丝机构，其特征在于，所述第二支架(16)的两侧内壁设置有滚珠轴承(15)，所述滚珠轴承(15)的内壁卡接有夹块(13)，所述夹块(13)的一侧连接有第二连接轴(14)，所述第二连接轴(14)的外壁套接有第二滚轮(18)，所述第二滚轮(18)的外壁等密度设置有软性凸块(19)，所述第二支架(16)的一侧连接有气杆(17)，所述气杆(17)的另一侧与支撑外壳(1)相连。    [Corrected 30.06.2023 in accordance with Article 91]
    According to claim 7, a wire feeding mechanism suitable for flexible wire molten deposition additive manufacturing is characterized in that ball bearings (15) are provided on the inner walls of both sides of the second bracket (16), a clamping block (13) is clamped on the inner wall of the ball bearing (15), one side of the clamping block (13) is connected to a second connecting shaft (14), the outer wall of the second connecting shaft (14) is sleeved with a second roller (18), the outer wall of the second roller (18) is provided with soft protrusions (19) of equal density, one side of the second bracket (16) is connected to a gas rod (17), and the other side of the gas rod (17) is connected to the support shell (1).
PCT/CN2023/077081 2022-10-28 2023-02-20 Wire feeding mechanism suitable for fused deposition additive manufacturing of flexible wire WO2024087421A1 (en)

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