3D printing petg consumable welding equipment

Abstract

The utility model relates to a kind of 3D printing PETG consumable welding equipment, belong to 3D printing consumable fusion technical field.The 3D printing PETG consumable welding equipment, comprising: welding box, the side hinged cover of welding box;Welding arrangement mechanism, for the butt welding of PETG printing consumable The welding arrangement mechanism setting in one side of welding box;Wherein, the welding arrangement mechanism includes the welding plate of fixed installation in the adjacent side of welding box and cover, the inside of the welding box is provided with cutting assembly, the inside of the welding box is also provided with heat dissipation component;By setting cutting assembly in welding box, PETG consumable both ends can be cut and trimmed before welding, ensure that fracture is smooth and perpendicular, improve the degree of fit and fusion uniformity, reduce broken wire, card silk and other faults.Welding plate provides stable docking and heating platform, realizes accurate welding;Heat dissipation component is used for rapid cooling after welding, prevent consumable soft.

Description

Technical Field

[0001] This utility model relates to the field of 3D printing consumable welding technology, and in particular to a 3D printing PETG consumable welding device. Background Technology

[0002] With the maturity of 3D printing technology, 3D printers have become a common item in people's lives. Like ordinary printers, 3D printers have become an indispensable tool in life and work. In the field of 3D printing, in order to improve material utilization and reduce material waste, two sections of PETG printing filament are often joined together by welding to continue to be used for subsequent printing jobs.

[0003] As shown in the reference case "A 3D Printing Consumable Fusion Splicer" (Announcement No. CN220180184U), its principle is similar to that of a fiber optic fusion splicer. The specific fusion process is roughly divided into three steps: first, the two ends of the broken 3D printing consumable are melted; second, the molten consumable is spliced ​​together; and finally, the molten part is shaped into a standard diameter, which can solve the problem of lack of continuity in linear 3D consumables to a certain extent.

[0004] However, since the ends of broken or residual wire segments are usually uneven, beveled, or carbonized, if they are directly welded without being cleaned up, it is easy to cause poor contact or uneven melting at the interface, which will affect the weld strength and the wire's continuity. Utility Model Content

[0005] Therefore, it is necessary to address the issue that the ends of broken or residual wire segments often have unevenness, bevels, or carbonization. If these are not properly prepared before welding, it can easily lead to poor contact or uneven melting at the interface, affecting the weld strength and wire continuity. To address this, a 3D printing PETG filament welding device is provided, comprising: a welding box with a cover hinged to one side; and a welding preparation mechanism, which is disposed on one side of the welding box for butt welding of the PETG printing filament. The welding preparation mechanism includes a welding plate fixedly installed on the side adjacent to the welding box and the cover. The welding box contains a cutting assembly and a heat dissipation assembly.

[0006] The cutting assembly includes two guide wheels rotatably mounted on both sides inside the welding box. Both sides of the welding box have inlets, and the two guide wheels on the same side are located on one side of the two inlets. The surface of the welding plate has a welding groove, and both sides of the welding plate are provided with cutting wheels.

[0007] The cutting assembly also includes a heating plate fixedly installed inside the welding plate. The heating plate is located on one side of the welding tank. Multiple heat-conducting strips are fixedly installed on the side of the heating plate near the welding tank, and all the heat-conducting strips are in contact with the welding tank.

[0008] The heating plate is designed in an arc shape and is arranged around the outside of the welding tank. A heat control plate is fixedly installed on one side of the welding plate and is embedded in one side of the welding plate.

[0009] Both cutting wheels are equipped with electric slide rails on their outer sides, and the cutting wheels are fixedly connected to the output ends of the adjacent electric slide rails.

[0010] The electric slide rail is internally fitted with a sealing telescopic belt, which is sleeved on the outside of the cutting wheel.

[0011] The heat dissipation assembly includes a heat dissipation fan fixedly installed inside the welding box. The heat dissipation fan is located at the bottom of the electric slide rail. An air inlet plate is fixedly installed on one side of the welding box. The air inlet end of the heat dissipation fan is located on one side of the air inlet plate. An air guide plate is fixedly connected to the output end of the heat dissipation fan. The air guide plate is located on one side of the welding plate inside the welding box.

[0012] The welding box is equipped with heat dissipation fins, which are located between the heat dissipation fan and the air inlet plate. Multiple air guide pipes are fixedly installed on one side of the air guide plate, and the multiple air guide pipes are located on one side of the adjacent welding plates. Multiple one-way air outlet pipes are fixedly installed on the surface of the box cover.

[0013] Beneficial effects

[0014] 1. By installing a cutting component inside the welding box, the ends of the PETG consumables can be cut and trimmed before welding, ensuring a flat and vertical cut, improving fit and welding uniformity, and reducing defects such as wire breakage and jamming. The welding plate provides a stable docking and heating platform for precise welding; the heat dissipation component is used for rapid cooling after welding to prevent the consumables from softening.

[0015] 2. The cooling fan can continuously draw in external cold air, improve air circulation efficiency, and provide a stable cooling air source for the device. At the same time, the output end of the cooling fan is fixedly connected to the air guide plate, and the air guide plate is set on one side of the welding plate, so that the cooling airflow can be concentrated and guided to the welding area, especially for rapid cooling of the welding plate and its heating plate and other high-temperature parts. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the welding and finishing mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the cutting component structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the heat dissipation component structure of this utility model.

[0021] Figure label:

[0022] 100. Welding box; 110. Air inlet plate; 120. One-way air outlet pipe; 200. Box cover; 300. Welding and finishing mechanism; 310. Welding plate; 320. Cutting assembly; 321. Guide wheel; 322. Welding tank; 323. Heating plate; 324. Heat-conducting strip; 325. Temperature control plate; 326. Electric slide rail; 327. Cutting wheel; 328. Sealing telescopic belt; 329. Feed inlet; 330. Heat dissipation assembly; 331. Heat dissipation fan; 332. Heat dissipation fins; 333. Air guide plate; 334. Air guide pipe. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0026] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0028] The following is combined Figures 1-4 This invention describes a 3D printing PETG filament welding device.

[0029] In one embodiment, a 3D printing PETG filament welding device includes: a welding box 100, with a box cover 200 hinged to one side of the welding box 100; and a welding sorting mechanism 300, which is disposed on one side of the welding box 100 for butt welding of PETG printing filaments; wherein the welding sorting mechanism 300 includes a welding plate 310 fixedly installed on the adjacent side of the welding box 100 and the box cover 200, a cutting assembly 320 is disposed inside the welding box 100, and a heat dissipation assembly 330 is also disposed inside the welding box 100.

[0030] In this embodiment, by setting a cutting component 320 inside the welding box 100, the end faces of the PETG printing consumables to be connected at both ends can be cut and trimmed before formal welding, ensuring that the cut is flat, vertical and burr-free, thereby improving the bonding density and welding uniformity of the wires at both ends during the subsequent welding process, effectively reducing problems such as wire breakage, wire jamming and poor material feeding caused by poor contact. The welding plate 310 on the joint side of the welding box 100 and the box cover 200 provides a stable docking and heating platform, allowing the consumables to be accurately welded under a compressed state. The heat dissipation component 330 is used to quickly dissipate heat from the welding plate 310 after welding, avoiding the problem of the PETG consumables softening during the cooling process.

[0031] It should be noted that existing 3D printing PETG filament welding equipment typically includes basic components such as a welding shell, a heating welding plate, a positioning and clamping mechanism, and a guiding docking device. The cutting component 320 and the heat dissipation component 330 are both located within the welding chamber 100, maintaining an independent layout from the main welding functional structures such as the welding plate 310, and will not interfere with the normal docking and welding operations. The cutting component 320 only serves to tidy the end faces before welding, avoiding welding errors caused by irregular filament cuts. The heat dissipation component 330 is only used after welding is completed; its operation process is staggered from the heating step, and will not adversely affect temperature control, docking accuracy, or filament position during the welding process.

[0032] like Figure 2 and Figure 3 As shown, the cutting assembly 320 includes two guide wheels 321 rotatably mounted on both sides inside the welding box 100. Both sides of the welding box 100 are provided with inlet ports 329. The two guide wheels 321 on the same side are respectively located on one side of the two inlet ports 329. The surface of the welding plate 310 is provided with welding grooves 322. Both sides of the welding plate 310 are provided with cutting wheels 327.

[0033] In this embodiment, by setting two guide wheels 321 inside the welding box 100 and placing them near the two feed ports 329 respectively, the consumables can be effectively guided and positioned during the process of entering the welding box 100, preventing the wires from deviating or bending. The welding groove 322 opened on the surface of the welding plate 310 is used to temporarily accommodate and limit the wires at both ends, so that they remain in a stable and close fit during the welding process, avoiding welding deviation caused by slight displacement. The cutting wheels 327 set on both sides of the welding plate 310 can simultaneously cut and trim the ends of the consumables before they are joined, ensuring that the cross-sections at both ends are flat and consistent, improving the heat-melting contact area and uniformity, thereby improving the structural strength and smoothness of the final joint, and effectively reducing problems such as wire breakage, material jamming or nozzle blockage caused by poor joints during the printing process.

[0034] The cutting assembly 320 also includes a heating plate 323 fixedly installed inside the welding plate 310. The heating plate 323 is located on one side of the welding tank 322. Multiple heat-conducting strips 324 are fixedly installed on the side of the heating plate 323 near the welding tank 322, and all the heat-conducting strips 324 are in contact with the welding tank 322.

[0035] In this embodiment, the heating plate 323 and the heat-conducting strip 324 can achieve uniform and stable heating of the end of the PETG consumable in the welding tank 322. The multi-point distributed heat-conducting strip 324 can keep the consumable heated evenly while avoiding excessive heat concentration and reducing the risk of thermal deformation.

[0036] The heating plate 323 is designed in an arc shape and is arranged around the outside of the welding tank 322. A heat control plate 325 is fixedly installed on one side of the welding plate 310 and is embedded in one side of the welding plate 310.

[0037] In this embodiment, by setting the heating plate 323 to an arc shape and surrounding it on the outside of the welding tank 322, the heating area is made to fit the geometric contour of the PETG consumable docking position more closely, thereby achieving a more uniform covering heating effect, improving heating efficiency and heat energy utilization, and ensuring that all parts of the consumable end reach the ideal welding temperature at the same time. The setting of the heat control plate 325 enables precise control of the working temperature of the heating plate 323, avoiding problems such as carbonization and adhesion of PETG consumables due to excessive temperature, or weak welding due to insufficient temperature.

[0038] Both cutting wheels 327 are equipped with electric slide rails 326 on their outer sides, and the output ends of the cutting wheels 327 and the adjacent electric slide rails 326 are fixedly connected.

[0039] In this embodiment, the electric slide rail 326 enables the cutting wheel 327 to slide smoothly in the horizontal direction, thereby achieving precise cutting of the end of the PETG consumable.

[0040] The electric slide rail 326 has a sealed telescopic belt 328 that is slidably installed inside it, and the sealed telescopic belt 328 is sleeved on the outside of the cutting wheel 327.

[0041] In this embodiment, the sealing telescopic belt 328 is sleeved on the outside of the cutting wheel 327, which can effectively cover the electric slide rail 326 when the cutting wheel 327 is sliding horizontally and rotating at high speed, preventing PETG debris, powder or high-temperature molten material generated during the cutting process from entering the internal track of the electric slide rail 326.

[0042] like Figure 2 and Figure 4 As shown, the heat dissipation assembly 330 includes a heat dissipation fan 331 fixedly installed inside the welding box 100. The heat dissipation fan 331 is located at the bottom of the electric slide rail 326. An air inlet plate 110 is fixedly installed on one side of the welding box 100. The air inlet end of the heat dissipation fan 331 is located on one side of the air inlet plate 110. An air guide plate 333 is fixedly connected to the output end of the heat dissipation fan 331. The air guide plate 333 is located on one side of the welding plate 310 inside the welding box 100.

[0043] In this embodiment, the cooling fan 331 can continuously draw in external cold air, improve air circulation efficiency, and provide a stable cooling air source for the device. At the same time, the output end of the cooling fan 331 is fixedly connected to the air guide plate 333, and the air guide plate 333 is set on one side of the welding plate 310, so that the cooling airflow can be concentrated and guided to the welding area, especially to rapidly cool the welding plate 310 and its heating plate 323 and other high-temperature parts.

[0044] The welding box 100 has heat dissipation fins 332 fixedly installed inside. The heat dissipation fins 332 are located between the heat dissipation fan 331 and the air inlet plate 110. Multiple air guide pipes 334 are fixedly installed on one side of the air guide plate 333. The multiple air guide pipes 334 are located on one side of the adjacent welding plate 310. Multiple one-way air outlet pipes 120 are fixedly installed on the surface of the box cover 200.

[0045] In this embodiment, multiple air ducts 334 are fixedly installed on one side of the air guide plate 333, so that the cooling airflow can be delivered to the welding plate 310 and its surrounding area in a multi-point and directional manner, avoiding uneven cooling caused by local heat accumulation, improving the cooling speed and welding stability. Multiple unidirectional air outlet pipes 120 can form a continuous unidirectional airflow channel inside the welding equipment, so that hot air can be discharged quickly and heat can be prevented from being trapped in the closed cavity. The heat dissipation fins 332 use the fin structure to expand the contact area between the air and the metal material, improve the heat exchange efficiency of the airflow when the heat dissipation fan 331 is working, and help reduce the overall internal temperature.

[0046] Working principle: Open the box cover 200 and insert the PETG printing consumables to be welded at both ends into the inlets 329 on both sides of the welding box 100. Then, with the box cover 200 open, the electric slide rail 326 drives the two cutting wheels 327 to slide towards the center, cutting the consumables at both ends simultaneously to ensure that the cross-section is vertical and flat, improving the subsequent welding and bonding quality. The sealing telescopic strip 328 is sleeved on the outside of the cutting wheel 327 during the cutting process to prevent PETG debris from entering the slide rail structure and affecting the operation. After the end face cutting is completed, the consumables are guided and positioned in the welding groove 322 on the surface of the welding plate 310 by the guide wheel 321. Close the box cover 200, and the equipment enters the welding stage. The heating plate 323 starts heating under the control of the heat control plate 325. The heat is evenly transferred to the welding groove 322 through multiple sets of heat conduction strips 324, so that the ends of the consumables at both ends melt simultaneously. The heating plate 323 has a surrounding arc structure, which can efficiently and uniformly cover and heat the welding contact area, thereby ensuring stable welding quality. After welding is completed, the heat dissipation component 330 is immediately activated. The cooling fan 331 draws in cold air from the air inlet plate 110. The air exchanges heat through the heat dissipation fins 332 set inside the welding box 100, and the cold airflow is precisely guided to the welding plate 310 area through the air guide plate 333 and its connected air guide pipe 334. Finally, multiple one-way air outlet pipes 120 guide the hot air to be discharged outward, forming an efficient cooling channel to prevent the end of the consumable from softening or deforming due to uneven cooling.

[0047] It should be noted that the electric slide rail, heating plate, cutting wheel, temperature control plate, and cooling fan mentioned above are all components with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the electric slide rail, heating plate, cutting wheel, temperature control plate, and cooling fan can be powered by the built-in power supply or by the mains power. The specific power supply method should be selected according to the situation, and will not be elaborated here.

[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A 3D printing PETG filament welding device, characterized in that, include: A welding box (100) with a lid (200) hinged to one side; A welding and finishing mechanism (300) for welding PETG printing consumables is disposed on one side of the welding box (100); The welding and finishing mechanism (300) includes a welding plate (310) fixedly installed on one side of the welding box (100) and the box cover (200). The welding box (100) is equipped with a cutting component (320) and a heat dissipation component (330).

2. The 3D printing PETG filament welding equipment according to claim 1, characterized in that, The cutting assembly (320) includes two guide wheels (321) rotatably mounted on both sides inside the welding box (100). Both sides of the welding box (100) are provided with inlets (329). The two guide wheels (321) on the same side are respectively located on one side of the two inlets (329). The surface of the welding plate (310) is provided with welding grooves (322). Both sides of the welding plate (310) are provided with cutting wheels (327).

3. The 3D printing PETG filament welding equipment according to claim 1, characterized in that, The cutting assembly (320) also includes a heating plate (323) fixedly installed inside the welding plate (310). The heating plate (323) is located on one side of the welding tank (322). Multiple heat-conducting strips (324) are fixedly installed on the side of the heating plate (323) near the welding tank (322), and the multiple heat-conducting strips (324) are in contact with the welding tank (322).

4. The 3D printing PETG filament welding equipment according to claim 3, characterized in that, The heating plate (323) is configured in an arc shape and is arranged around the outside of the welding tank (322). A heat control plate (325) is fixedly installed on one side of the welding plate (310) and is embedded in one side of the welding plate (310).

5. The 3D printing PETG filament welding equipment according to claim 2, characterized in that, Both cutting wheels (327) are provided with electric slide rails (326) on their outer sides, and the cutting wheels (327) are fixedly connected to the output ends of the adjacent electric slide rails (326).

6. The 3D printing PETG filament welding equipment according to claim 5, characterized in that, The electric slide rail (326) is internally slidably fitted with a sealing telescopic belt (328), which is sleeved on the outside of the cutting wheel (327).

7. The 3D printing PETG filament welding equipment according to claim 5, characterized in that, The heat dissipation assembly (330) includes a heat dissipation fan (331) fixedly installed inside the welding box (100). The heat dissipation fan (331) is located at the bottom of the electric slide rail (326). An air inlet plate (110) is fixedly installed on one side of the welding box (100). The air inlet end of the heat dissipation fan (331) is located on one side of the air inlet plate (110). The output end of the heat dissipation fan (331) is fixedly connected to a guide plate (333). The guide plate (333) is located on one side of the welding plate (310) inside the welding box (100).

8. The 3D printing PETG filament welding equipment according to claim 7, characterized in that, The welding box (100) is internally fixedly equipped with heat dissipation fins (332), which are located between the heat dissipation fan (331) and the air inlet plate (110). Multiple air guide pipes (334) are fixedly installed on one side of the air guide plate (333), and the multiple air guide pipes (334) are located on one side of the adjacent welding plate (310). Multiple one-way air outlet pipes (120) are fixedly installed on the surface of the box cover (200).

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