技术领域technical field
本发明涉及一种熔融沉积3D打印用线材接线器组件，属于FDM （熔融沉积成型）3D打印领域。The invention relates to a wire connector assembly for fused deposition 3D printing, which belongs to the field of FDM (fused deposition modeling) 3D printing.
背景技术Background technique
3D打印技术，也被称为AM（增材制造）,目前已被广泛用于科学研究、工业生产和高精尖加工等领域。该技术基本过程为：预先设计好将CAD（计算机辅助设计）模型，利用3D 打印控制系统（计算机）对其进行离散化处理，获得对应于三维模型的一组二维数据信息；然后用二维数据信息驱动3D打印机，通过叠层堆积的方式最终获得完整的三维实体。FDM打印技术属于挤出式3D打印技术大类，是一种常见而且广泛应用的3D打印技术。该技术通常是将热塑性线材经供丝系统输送至挤出喷头处，在喷头中加热至半熔态，然后挤出并在工作平台上构筑三维实体。3D printing technology, also known as AM (Additive Manufacturing), has been widely used in scientific research, industrial production and high-precision processing and other fields. The basic process of this technology is: pre-design the CAD (Computer Aided Design) model, use the 3D printing control system (computer) to discretize it, and obtain a set of two-dimensional data information corresponding to the three-dimensional model; then use the two-dimensional The data information drives the 3D printer, and finally obtains a complete three-dimensional entity through stacking. FDM printing technology belongs to the category of extrusion 3D printing technology, and is a common and widely used 3D printing technology. This technology usually transports the thermoplastic wire to the extrusion nozzle through the wire supply system, heats it to a semi-molten state in the nozzle, and then extrudes and builds a three-dimensional solid on the working platform.
目前市场上主流的热塑性线材包括：PLA（聚乳酸）、ABS（丙烯腈-苯乙烯塑料）、PC（聚碳酸酯）、HIPS（高冲击强度聚苯乙烯）和PA（尼龙）等，也包括一部分用于特殊用途的功能化的线材。线材的主要直径有1.75mm和3.00mm，与常见的FDM打印系统匹配。At present, the mainstream thermoplastic wires on the market include: PLA (polylactic acid), ABS (acrylonitrile-styrene plastic), PC (polycarbonate), HIPS (high impact polystyrene) and PA (nylon), etc. Some functionalized wires for special purposes. The main diameter of the wire is 1.75mm and 3.00mm, matching with common FDM printing systems.
FDM打印在模具、工艺品模型、机械零部件等方面广泛应用，但是成型速度较慢，线材耗费量大，使得其在大型物件的构筑过程中面临巨大的挑战。此外，FDM多材料打印也逐渐成为市场需求，但是目前的FDM主要是单喷头和双喷头，要满足多材料打印也存在一定的困难。而解决上述问题的关键在于FDM线材之间能够实现简便灵活的对接。一般的解决办法有直接将线材末端切平，通过直接加热或者胶水粘接的方式进行连接，然后再用刀片或者砂纸进行切削打磨，以适应于FDM挤出头。该方法操作不便，线材对接处质量差，容易断裂，影响打印产品的质量。目前有报道一些用于FDM线材对接的工具，比如一种类似于老虎钳的加热夹具，能够实现线材对接，但是其操作不便，工艺过程繁琐，最终线材的对接处仍然需要打磨处理。专利CN201610488811.X公开了一种FDM 3D打印机耗材连接装置及其使用方法。该发明具体包括可拆卸的第一固定部和第二固定部，所述的第一固定部和第二固定部拼接固定在一起后构成可供3D打印线材穿过的第一通道和第二通道，第一通道和第二通道之间为可供加热线材对接端的工作区域。该发明虽然可以实现较好的线材连接，但是线材对接处是在暴露的情况下进行加热，采用明火或者其他的加热方式，直至熔化，最后需要手动推至相应的通道中进行冷却，对接好的线材还需要后期稍微修整至合适的尺寸用于FDM打印。整个操作工艺较为繁琐，不便作为FDM打印机配套的工具，明火的加热方式使得其在使用过程中存在安全隐患。此外，由于不同材料的熔融温度存在差异，从而限制了利用该方法实现不同种线材对接。FDM printing is widely used in molds, handicraft models, mechanical parts, etc., but the molding speed is slow and the wire consumption is large, which makes it face huge challenges in the construction of large objects. In addition, FDM multi-material printing has gradually become a market demand, but the current FDM is mainly single-nozzle and dual-nozzle, and there are certain difficulties in meeting multi-material printing. The key to solving the above problems lies in the simple and flexible connection between FDM wires. The general solution is to directly cut the end of the wire, connect it by direct heating or glue bonding, and then cut and polish it with a blade or sandpaper to adapt to the FDM extrusion head. This method is inconvenient to operate, and the quality of the butt joint of the wire rods is poor, and it is easy to break, which affects the quality of the printed product. At present, there are reports that some tools for FDM wire butt joint, such as a heating fixture similar to a vise, can realize wire butt joint, but its operation is inconvenient, the process is cumbersome, and the final wire joint still needs to be polished. Patent CN201610488811.X discloses a FDM 3D printer consumable connection device and its usage method. The invention specifically includes a detachable first fixing part and a second fixing part, and the first fixing part and the second fixing part are spliced and fixed together to form a first channel and a second channel through which 3D printing wires can pass. , between the first channel and the second channel is a working area for heating the butt end of the wire. Although this invention can achieve better wire connection, the butt joints of the wires are heated when they are exposed, using an open flame or other heating methods until they melt, and finally need to be manually pushed into the corresponding channel for cooling. The wire also needs to be slightly trimmed to the appropriate size for FDM printing. The entire operation process is relatively cumbersome, and it is inconvenient to be used as a supporting tool for FDM printers. The heating method of an open flame makes it a potential safety hazard during use. In addition, due to the difference in the melting temperature of different materials, the use of this method to realize the butt joint of different kinds of wires is limited.
综上，现在迫切需要一种一体化、工具化的FDM线材连接装置，同时要求操作简便，安全性高，能够满足多种线材连接要求，适合向市场推广应用。To sum up, there is an urgent need for an integrated and tool-based FDM wire connection device, which is required to be easy to operate, high in safety, capable of meeting various wire connection requirements, and suitable for market promotion and application.
发明内容Contents of the invention
本发明的目的是提供一种熔融沉积3D打印用线材接线器组件。The object of the present invention is to provide a wire connector assembly for fused deposition 3D printing.
本发明所述接线器组件是一种一体化封装的FDM线材连接装置，具备操作简单，安全可靠的工作特性，能够快速、高效的实现不同线材对接，同时该接线器内套可以定制为1.75 mm和3.00 mm，能够通过接线器内套的更换来简单地实现目前市场上主流FDM线材的连接。本发明可以作为工具型的产品向市场推广应用。The connector assembly of the present invention is an integrated packaged FDM wire connection device, which has the characteristics of simple operation, safety and reliability, and can quickly and efficiently realize the connection of different wires. At the same time, the inner sleeve of the connector can be customized to be 1.75 mm and 3.00 mm, the connection of mainstream FDM wires on the market can be easily realized by replacing the inner sleeve of the connector. The present invention can be promoted and applied to the market as a tool-type product.
一种熔融沉积3D打印用线材接线器组件，其特征在于该接线器组件包括接线器内套和加热器；所述接线器内套包括设有限位槽的第一固定部、第二固定部、第三固定部和第四固定部；第一固定部和第二固定部拼接固定在一起后构成第一通道，对需要对接的两种线材进行一体化封装；第三固定部和第四固定部拼接固定在一起后构成第二通道，该孔道直径略小于线材直径，拼接闭合后对线材产生夹持作用；第一固定部和第三固定部通过弹簧螺杆组合连接，第二固定部和第四固定部通过弹簧螺杆组合连接；所述加热器类似于老虎钳，钳头的内侧设有平面型缺口和半圆形缺口；平面型缺口与第一固定部限位槽的尺寸一致，且其背面加置PTC（正温度系数）加热片，所设限位槽为加热工作区；半圆形缺口的尺寸和第二固定部的外尺寸一致。A wire connector assembly for fused deposition 3D printing, characterized in that the connector assembly includes a connector inner sleeve and a heater; the connector inner sleeve includes a first fixing part provided with a limiting groove, a second fixing part, The third fixed part and the fourth fixed part; the first fixed part and the second fixed part are spliced and fixed together to form the first channel, and the two kinds of wires that need to be connected are integrated and packaged; the third fixed part and the fourth fixed part The second channel is formed after being spliced and fixed together. The diameter of the channel is slightly smaller than the diameter of the wire. The fixing part is connected by a combination of spring and screw rods; the heater is similar to a vise, and the inside of the pliers head is provided with a planar notch and a semicircular notch; the planar notch is consistent with the size of the first fixing part limiting groove, and the back is A PTC (Positive Temperature Coefficient) heating sheet is installed, and the set limit groove is the heating working area; the size of the semicircular notch is consistent with the outer size of the second fixed part.
所述第一固定部和第二固定部为镜面对称结构，第三固定部和第四固定部为镜面对称结构。The first fixing part and the second fixing part are mirror symmetrical structures, and the third fixing part and the fourth fixing part are mirror symmetrical structures.
所述第一固定部上设有四个连接孔、一个与第三固定部上设置的贯穿连接孔通过弹簧螺杆组合相连的固定孔和第一滑槽；所述第二固定部上设置有与第一滑槽拼接构成第一通道的第二滑槽，一个与第四固定部上设置的贯穿连接孔通过弹簧螺杆组合相连的固定孔；第一固定部设置的四个连接孔通过四个螺杆连接第二固定部的四个固定孔；所述第三固定部上设有第三滑槽以及两个连接孔；所述第四固定部上设有与第三滑槽拼接构成第二通道的第四滑槽；第三固定部设置的两个连接孔通过两个螺杆连接第四固定部的两个固定孔。The first fixing part is provided with four connecting holes, a fixing hole and a first chute which are connected to the through connecting holes provided on the third fixing part through a combination of spring screws; the second fixing part is provided with The first chute is spliced to form the second chute of the first passage, a fixed hole connected to the through connection hole provided on the fourth fixed part through a spring screw combination; the four connection holes provided on the first fixed part are connected through four screw rods Connect the four fixing holes of the second fixing part; the third fixing part is provided with a third chute and two connection holes; The fourth chute; the two connecting holes of the third fixing part are connected to the two fixing holes of the fourth fixing part through two screw rods.
所述接线器内套第一滑槽、第二滑槽、第三滑槽和第四滑槽的横截面均为半圆形。The cross sections of the first chute, the second chute, the third chute and the fourth chute of the connector inner sleeve are all semicircular.
所述第一通道和第二通道的横截面均为圆形。第一通道的直径为1.75mm 或者3.00mm(针对两种线材尺寸设计)。第二通道的直径为1.70mm或者2.95mm第二通道的直径略小于线材直径，第三固定部和第四固定部拼接闭合后可以对线材进行夹持。The cross sections of the first channel and the second channel are both circular. The diameter of the first channel is 1.75mm or 3.00mm (designed for two wire sizes). The diameter of the second channel is 1.70 mm or 2.95 mm. The diameter of the second channel is slightly smaller than the diameter of the wire, and the wire can be clamped after the third fixing part and the fourth fixing part are spliced and closed.
两根线材的末端在第一通道的中部对接，所处位置对应于接线器内套第一固定部限位槽中部。The ends of the two wires are butted in the middle of the first passage, and the position is corresponding to the middle of the limiting groove of the first fixing part of the inner sleeve of the connector.
所述所有连接孔均为无内螺纹直孔；所述所有固定孔均为内螺纹孔。All the connection holes are straight holes without internal thread; all the fixing holes are internal thread holes.
所述接线器内套的所有部件均为不锈钢，加热熔融连接完毕的线材不会和第一通道的表面发生粘接，并且保证了线材表面光洁度良好，可以直接用于FDM打印，线材连接头处完全不需打磨切削后处理。此外，不锈钢耐磨性好，接线器内套使用寿命长。All parts of the inner sleeve of the connector are made of stainless steel. The wire rods that have been heated and melted will not bond to the surface of the first channel, and the surface finish of the wire rods is guaranteed to be good, which can be directly used for FDM printing. There is absolutely no need for grinding and post-processing. In addition, stainless steel has good wear resistance, and the inner sleeve of the connector has a long service life.
所述加热器的材质为碳素钢；在手柄上加装隔热保护套，保护套材质为聚四氟乙烯。The heater is made of carbon steel; a heat-insulating protective cover is installed on the handle, and the material of the protective cover is polytetrafluoroethylene.
所述PTC加热片用耐高温环氧树脂进行封装。The PTC heating chip is encapsulated with high temperature resistant epoxy resin.
加热器的平面型缺口和第一固定部的限位槽尺寸一致，从而实现对两根线材对接处的定点加热，提高线材接合质量；半圆形缺口的尺寸和第二固定部的外尺寸一致，确保夹持的稳定性。The plane notch of the heater is consistent with the size of the limiting groove of the first fixing part, so as to realize the fixed-point heating of the butt joint of the two wires and improve the quality of wire bonding; the size of the semicircular notch is consistent with the outer dimension of the second fixing part , to ensure the stability of the clamping.
本发明通过调节弹簧螺杆组合的松紧程度向线材对接的方向施加和卸载外力，避免高温情况下人工外力向线材施加推力，确保安全，安装完毕后不需要将此部分拆卸。The present invention applies and unloads external force to the direction of wire rod docking by adjusting the degree of tightness of the spring-screw combination, avoiding artificial external force from applying thrust to the wire rod under high temperature conditions, ensuring safety, and this part does not need to be disassembled after installation.
所述熔融沉积3D打印用线材接线器组件工作时，按照如下步骤进行：When the wire connector assembly for fused deposition 3D printing is working, follow the steps below:
（1）将需要对接的两种线材封装在第一通道内；(1) Encapsulate the two wires that need to be connected in the first channel;
（2）第二通道对外部一侧线材进行夹持，调节弹簧螺杆组合对线材施加一定的外力；(2) The second channel clamps the wire on the outer side, and adjusts the spring screw combination to apply a certain external force to the wire;
（3）将加热器夹在接线器内套的限位槽中，加热20秒左右，撤掉加热器，使接线器内套自然冷却至室温；(3) Clamp the heater in the limit groove of the inner sleeve of the connector, heat for about 20 seconds, remove the heater, and let the inner sleeve of the connector cool down to room temperature naturally;
（4）拧松接线器内套一侧的螺杆（三个）并将另一侧的螺杆（3个）打开，即可将固定部分开，取下连接好的FDM线材，直接用于FDM打印。(4) Loosen the screw rods (three) on one side of the inner sleeve of the connector and open the screw rods (three) on the other side to separate the fixed part, remove the connected FDM wire, and use it directly for FDM printing .
所述的加热器类似于老虎钳，在其钳头部位设计安装一个PTC加热片，加热片通过温控电路控制，能够实现多温度区控制，在100-200℃范围内实现不同温区恒温加热。所述的加热器在钳口处的缺口和接线器内套加热工作区相匹配，能够对线材对接处进行局部定点加热。The heater is similar to a vise, and a PTC heating chip is designed and installed on the clamp head. The heating chip is controlled by a temperature control circuit, which can realize multi-temperature zone control, and realize constant temperature heating in different temperature zones within the range of 100-200°C. . The gap of the heater at the jaw is matched with the heating working area of the inner cover of the connector, and can locally heat the butt joints of the wires at fixed points.
所述第一滑槽和第二滑槽拼接形成第一通道，通道的横截面为封闭的圆形，该通道的直径和FDM线材的直径一致；第三滑槽和第四滑槽拼接形成第二通道，通道的横截面为封闭的圆形，该通道的直径比FDM线材的直径略小，在第三、第四固定部拼接闭合后，固定部对线材具有一定的夹持作用。The first chute and the second chute are spliced to form the first passage, the cross section of the passage is a closed circle, and the diameter of the passage is consistent with the diameter of the FDM wire; the third chute and the fourth chute are spliced to form the first channel. The second channel, the cross section of the channel is a closed circle, the diameter of the channel is slightly smaller than the diameter of the FDM wire, after the third and fourth fixing parts are spliced and closed, the fixing part has a certain clamping effect on the wire.
本发明与现有的FDM线材连接方法和装置相比具有的优点：本发明能够实现FDM线材一体化封装连接过程，操作简便，安全性高，线材对接处平滑，不用后处理可直接用于打印，能够满足不同熔融温度线材的连接要求，同时可以作为FDM打印机的配套工具。本发明填补了FDM线材接线装置领域的空白，拓宽了FDM打印技术的应用。Compared with the existing FDM wire connection method and device, the present invention has the following advantages: the present invention can realize the integrated packaging and connection process of FDM wires, which is easy to operate, high in safety, smooth at the joint of wires, and can be directly used for printing without post-processing , can meet the connection requirements of wires with different melting temperatures, and can also be used as a supporting tool for FDM printers. The invention fills up the gap in the field of FDM wire connection devices and broadens the application of the FDM printing technology.
附图说明Description of drawings
图1 为本发明所述熔融沉积3D打印接线器组件的结构示意图。Figure 1 is a schematic structural view of the fused deposition 3D printed connector assembly of the present invention.
图2为本发明所述接线器内套的结构爆炸示意图。Fig. 2 is a schematic exploded view of the structure of the inner sleeve of the connector according to the present invention.
图3为本发明所述接线器内套的结构示意图。Fig. 3 is a schematic structural view of the inner sleeve of the connector according to the present invention.
图4为本发明所述加热器的结构示意图。Fig. 4 is a schematic structural diagram of the heater of the present invention.
具体实施方式Detailed ways
如图1所示，一种熔融沉积3D打印线材接线器组件，包接线器内套Ⅰ和加热器Ⅱ。如图2所示，接线器内套Ⅰ的第一固定部1和第二固定部2通过四个螺杆5、6、7、8实施可拆卸连接，第一固定部1和第二固定部2拼接后构成可供FDM线材穿过的第一通道；接线器内套Ⅰ的第三固定部3和第四固定部4通过两个螺杆9、10实施可拆卸连接，第三固定部3和第四固定部4拼接后构成可供FDM线材穿过的第二通道，该通道的直径略小于线材的直径，固定部闭合后对线材具有夹持作用；两个带弹簧螺杆11、12穿过第三固定部3的连接孔3-4和第四固定部4的连接孔4-4，分别连接第一固定部1的固定孔1-7和第二固定部2的固定孔2-6，为可拆卸连接。通过第一固定部1和第二固定部2对线材进行一体化封装，第三固定部3和第四固定部4配合两个弹簧螺杆组合11、12向线材对接头方向施加外力，代替人工加载外力。加热器Ⅱ直接夹在接线器内套Ⅰ的加热工作区限位槽1-1，使得线材对接处加热熔融，然后经自然冷却，完成线材连接。As shown in Figure 1, a fused deposition 3D printed wire connector assembly includes a wire connector inner sleeve I and a heater II. As shown in Figure 2, the first fixed part 1 and the second fixed part 2 of the connector inner sleeve I are detachably connected by four screws 5, 6, 7, 8, the first fixed part 1 and the second fixed part 2 After splicing, the first passage for FDM wires to pass through is formed; the third fixing part 3 and the fourth fixing part 4 of the connector inner sleeve I are detachably connected by two screws 9 and 10, and the third fixing part 3 and the fourth fixing part are detachably connected. The splicing of the four fixing parts 4 constitutes a second channel through which the FDM wire rod can pass. The diameter of the channel is slightly smaller than the diameter of the wire rod. After the fixing part is closed, it has a clamping effect on the wire rod; The connecting hole 3-4 of the three fixing parts 3 and the connecting hole 4-4 of the fourth fixing part 4 are respectively connected with the fixing hole 1-7 of the first fixing part 1 and the fixing hole 2-6 of the second fixing part 2, as Detachable connection. The wire is packaged integrally through the first fixing part 1 and the second fixing part 2, and the third fixing part 3 and the fourth fixing part 4 cooperate with two spring screw combinations 11 and 12 to apply external force to the direction of the wire butt joint instead of manual loading external force. The heater Ⅱ is directly clamped to the limit groove 1-1 of the heating working area of the inner sleeve Ⅰ of the connector, so that the butt joints of the wires are heated and melted, and then naturally cooled to complete the connection of the wires.
第一固定部1设置有限位槽1-1，该限位槽1-1为加热工作区；设置有四个连接孔1-2、1-3、1-4、1-5，设置有横截面为半圆形的第一滑槽1-6，设置有固定孔1-7。The first fixing part 1 is provided with a limiting groove 1-1, and the limiting groove 1-1 is a heating working area; four connection holes 1-2, 1-3, 1-4, 1-5 are provided, and a horizontal The first chute 1-6 with a semicircular cross section is provided with a fixing hole 1-7.
第二固定部2，设有五个固定孔2-1、2-2、2-3、2-4、2-6，设有横截面为半圆形的第二滑槽2-5。The second fixing part 2 is provided with five fixing holes 2-1, 2-2, 2-3, 2-4, 2-6, and a second chute 2-5 with a semicircular cross section.
第三固定部3，设有第三滑槽3-1，设置有两个连接孔3-2和3-3，设置有贯穿的连接孔3-4。The third fixing part 3 is provided with a third chute 3-1, is provided with two connection holes 3-2 and 3-3, and is provided with a through connection hole 3-4.
第四固定部4，设置有第四滑槽4-1，设置有两个固定孔4-2和4-3，设置有贯穿的连接孔4-4。The fourth fixing part 4 is provided with a fourth chute 4-1, is provided with two fixing holes 4-2 and 4-3, and is provided with a through connecting hole 4-4.
第一滑槽1-6和第二滑槽2-5拼接构成第一通道，第三滑槽3-1和第四滑槽4-1拼接构成第二通道；第一通道和第二通道的横截面均为圆形。The first chute 1-6 and the second chute 2-5 are spliced to form the first passage, and the third chute 3-1 and the fourth chute 4-1 are spliced to form the second passage; the first passage and the second passage The cross sections are all circular.
第一固定部1上的限位槽1-1为加热工作区，两根线材的末端在第一通道的中间对接，所处位置对应在限位槽1-1中部。The limiting groove 1-1 on the first fixing part 1 is a heating working area, and the ends of the two wires are butted in the middle of the first channel, and the position corresponds to the middle of the limiting groove 1-1.
弹簧螺杆组合11穿过连接孔3-4和固定孔1-7实施可拆卸连接；弹簧螺杆组合12穿过连接孔4-4和固定孔2-6实施可拆卸连接。The spring screw assembly 11 is detachably connected through the connecting hole 3-4 and the fixing hole 1-7; the spring screw assembly 12 is detachably connected through the connecting hole 4-4 and the fixing hole 2-6.
所有固定孔1-7、2-1、2-2、2-3、2-4、2-6、4-2和4-3均为内螺纹孔，与对应的螺杆配套使用。所述的螺杆5、6、7、8、9和10为相应规格的标准件。所有的连接孔1-2、1-3、1-4、1-5、3-2、3-3、3-4 和4-4均为无内螺纹直孔。All fixing holes 1-7, 2-1, 2-2, 2-3, 2-4, 2-6, 4-2 and 4-3 are internally threaded holes, and are used in conjunction with corresponding screw rods. The screws 5, 6, 7, 8, 9 and 10 are standard parts of corresponding specifications. All connecting holes 1-2, 1-3, 1-4, 1-5, 3-2, 3-3, 3-4 and 4-4 are straight holes without internal thread.
接线器内套Ⅰ的所有部件均为不锈钢。All parts of the connector sleeve I are stainless steel.
第一固定部1和第二固定部2为镜面对称结构，第三固定部3和第四固定部4为镜面对称结构。The first fixing part 1 and the second fixing part 2 have a mirror symmetrical structure, and the third fixing part 3 and the fourth fixing part 4 have a mirror symmetrical structure.
接线器内套拼接后如图3所示。After splicing the inner sleeve of the connector, it is shown in Figure 3.
如图4所示，加热器Ⅱ类似于老虎钳。一侧手柄钳头13的内侧设置平面形缺口13-1，平面形缺口13-1的背面加置一枚PTC加热片16，并用耐高温环氧树脂进行封装。另一侧手柄钳头14的内侧设置半圆形缺口14-1。所述的平面形缺口13-1和第一固定部1的限位槽1-1尺寸一致，从而实现对两根线材对接处的定点加热，提高线材接合质量；半圆形缺口14-1的尺寸和第二固定部2的尺寸一致，确保夹持的稳定性。As shown in Figure 4, Heater II is similar to a vise. A planar notch 13-1 is arranged on the inner side of the handle pliers head 13 on one side, and a PTC heating chip 16 is placed on the back of the planar notch 13-1, and is encapsulated with high temperature resistant epoxy resin. A semicircular notch 14-1 is provided on the inner side of the handle pliers head 14 on the other side. The planar notch 13-1 has the same size as the limiting groove 1-1 of the first fixing part 1, so as to realize fixed-point heating at the joint of two wires and improve the quality of wire bonding; the semicircular notch 14-1 The size is consistent with the size of the second fixing part 2 to ensure the stability of clamping.
加热器的材质为常用的碳素钢，在手柄13和14上加装隔热保护套15，保护套15材质为聚四氟乙烯。The material of the heater is a commonly used carbon steel, and an insulating protective cover 15 is installed on the handles 13 and 14, and the protective cover 15 is made of polytetrafluoroethylene.
FDM接线器组件工作时，按照上述安装顺序，将需要对接的两种线材封装在接线器内套Ⅰ第一通道内，然后调节弹簧螺杆组合11和12对一侧线材施加一定的外力，在受热熔融的时候增强结合作用，提高线材接合质量。然后将加热器Ⅱ夹在接线器内套Ⅰ的限位槽1-1中，加热20秒左右，撤掉加热器Ⅱ，使接线器内套Ⅰ自然冷却定型至室温。然后将接线器内套Ⅰ一侧的螺杆（3个）拧松，另一侧的螺杆（3个）打开，即可将固定部分开，取下连接好的FDM线材，直接用于FDM打印。When the FDM connector assembly is working, according to the above installation sequence, pack the two wires that need to be connected in the first channel of the connector inner sleeve I, and then adjust the spring screw combination 11 and 12 to apply a certain external force to one side of the wire. When melting, the bonding effect is enhanced to improve the quality of wire bonding. Then clamp the heater II in the limit groove 1-1 of the connector inner sleeve I, heat for about 20 seconds, remove the heater II, and let the connector inner sleeve I naturally cool and shape to room temperature. Then loosen the screws (3 pieces) on one side of the inner sleeve of the connector I, and open the screws (3 pieces) on the other side to separate the fixed part, remove the connected FDM wire, and use it directly for FDM printing.
本发明填补了本技术领域的空白。该组件能够方便快捷的实现不同FDM线材之间的连接，在连接过程中对线材进行了一体化封装，通道直径和线材直径保持一致，连接完毕的线材可直接用于FDM打印，不需要任何打磨切削处理，整个工艺过程安全可靠。此外，加热器的控温电路能够实现不同温度加热，为不同熔融温度的热塑性线材的连接提供可能。该发明为FDM技术打印大尺寸物件和多种材料打印提供了可能。The present invention fills up the gap in the technical field. This component can conveniently and quickly realize the connection between different FDM wires. During the connection process, the wires are integrated and packaged. The diameter of the channel is consistent with the diameter of the wires. The connected wires can be directly used for FDM printing without any grinding. Cutting treatment, the whole process is safe and reliable. In addition, the temperature control circuit of the heater can realize heating at different temperatures, making it possible to connect thermoplastic wires with different melting temperatures. This invention provides the possibility for FDM technology to print large-scale objects and print a variety of materials.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810212097.0ACN110271181B (en) | 2018-03-15 | 2018-03-15 | Fused deposition 3D prints and uses wire rod connector subassembly |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810212097.0ACN110271181B (en) | 2018-03-15 | 2018-03-15 | Fused deposition 3D prints and uses wire rod connector subassembly |
| Publication Number | Publication Date |
|---|---|
| CN110271181Atrue CN110271181A (en) | 2019-09-24 |
| CN110271181B CN110271181B (en) | 2024-02-27 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810212097.0AActiveCN110271181B (en) | 2018-03-15 | 2018-03-15 | Fused deposition 3D prints and uses wire rod connector subassembly |
| Country | Link |
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| CN (1) | CN110271181B (en) |
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| CN112757641A (en)* | 2021-01-22 | 2021-05-07 | 青岛科技大学 | Manual wiring device |
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| CN203282709U (en)* | 2013-05-31 | 2013-11-13 | 中国科学院福建物质结构研究所 | Fused depositional 3D printer with local heating device |
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| CN106626365A (en)* | 2016-12-27 | 2017-05-10 | 湖北工业大学 | Online print material fusion device for 3D printer |
| CN107662334A (en)* | 2017-01-12 | 2018-02-06 | 许昌义 | The docking calculation and instrument of 3 D-printing wire rod |
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| CN110271181B (en) | 2024-02-27 |
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