CN218593702U - A butt fusion device that is used for FDM3D printer printing silk consumptive material - Google Patents

Abstract

The utility model provides a butt fusion device that is used for FDM3D printer printing silk consumptive material, belongs to the 3D field of printing. The welding device comprises a pair of opposite welding parts, wherein the center positions of the pair of opposite welding parts are provided with butt joint holes with the same diameter, the centers of the butt joint holes of the pair of opposite welding parts are on the same straight line, the pair of opposite welding parts are respectively divided into two parts along the axial direction through the centers of the butt joint holes, the opposite ends of the pair of opposite welding parts are provided with centering structures, and the opposite surfaces of the divided two welding parts are provided with positioning structures.

Description

A butt fusion device that is used for FDM3D printer printing silk consumptive material

Technical Field

The utility model relates to a dissolve and connect the device, in particular to a butt fusion device that is used for FDM3D printer printing silk consumptive material belongs to the 3D field of printing.

Background

FDM (Fused Deposition Modeling) 3D printer is a manufacturing device that prints using a Fused Deposition process, which accounts for over 70% of the market, and is generally made of a material supplied as a filamentous thermoplastic material, such as wax, ABS, nylon, etc., which is heated and melted in a nozzle, which moves along the cross-sectional profile and filling trajectory of a part while extruding the melted material, and the material solidifies rapidly and coagulates with the surrounding material to form a printing part.

In the printing process, the printing wire is easy to break, and the rolled printing wire needs to be replaced after the printing wire is broken, which is undoubtedly a great waste for a unit or an individual using a 3D printer.

Fig. 10 is a schematic structural diagram of a conventional printing wire docking device, in which the welding device is formed by docking a first docking plate 50a and a second docking plate 50b, a docking fixing end 53 is provided at one end, a docking hole 52 is formed by docking semicircular grooves on the docking surfaces of the first docking plate 50a and the second docking plate 50b, the docking fixing end 53 is provided with a corresponding circular hole, the docking hole 52 has a diameter about 1mm larger than that of a printing wire, after docking the first docking plate 50a and the second docking plate 50b, the other docking plate is fixed to a first screw hole 51 by screws, and the docking fixing end 53 is also fixed by screws 53a, when in use, the docked printing wire is inserted into a central hole 54 from both ends of the docking hole 52, heated by a lighter, an alcohol lamp, etc., and then pulled left and right along the docking hole, after cooling, the screws are removed, and the outer circumference of the docking part is milled into the same direct printing wire, which has the following disadvantages: 1. a special disassembling tool is required; 2. the success rate is low and is less than 30 percent, 3, the periphery is required to be polished after butt joint, and the post-treatment is troublesome; 4. the melted butt end faces need to be perpendicular to the butt wire axis.

With this kind of docking device, docking time is long, docking efficiency is low, docking intensity is not high, can waste a lot of time and energy, also docking failure can influence the mood, can make the people be irritated and restless, the biggest shortcoming is to influence 3D printing efficiency, therefore, expects to use a docking device that docking success rate is high, can bring the sense of achievement for people.

Disclosure of Invention

To current printing silk interfacing apparatus butt joint time long, butt joint inefficiency, can waste a lot of time and energy scheduling problem, the utility model provides a butt joint device for FDM3D printer printing silk consumptive material, its purpose reduces the waste of printing the silk, practices thrift the cost, improves the butt joint precision, improves to the butt joint success rate, improves butt joint intensity, reduces correction time, improves 3D printing efficiency.

The technical scheme of the utility model is that: a welding device for printing wire consumables of an FDM3D printer comprises a pair of opposite welding parts, wherein butt joint holes with the same diameter are formed in the center positions of the pair of opposite welding parts, centering structures which are matched with each other and are concentric with the butt joint holes are formed in the opposite ends of the pair of welding parts, the centers of the butt joint holes of the pair of opposite welding parts are located on the same straight line, the pair of opposite welding parts are respectively divided into two parts in the axial direction through the centers of the butt joint holes, and positioning structures are arranged on the dividing surfaces of the two parts;

further, the centering structure comprises a centering boss and a centering counter bore which are respectively arranged at opposite ends of the two welding parts, the centering boss and the centering counter bore are concentric with the center of the butt joint hole, a gap of 0.5-3 mm is reserved at the butt joint position of the end part of the centering boss and the bottom of the centering counter bore, and a flange is formed at the gap part;

further, the positioning structure comprises a convex butt joint strip, a concave butt joint groove, a convex butt joint column, a concave butt joint pit and a male-female hasp, and the clearance between the convex butt joint strip and the concave butt joint groove, and the clearance between the convex butt joint column and the concave butt joint pit is less than 0.05mm;

further, the diameter of the butt joint hole is 0.05mm to 0.2mm larger than that of the printing wire;

furthermore, the welding parts are made of high-temperature-resistant plastics, metal materials and glass;

further, the diameter of a butt joint hole of the welding component is between 0.5 and 10mm;

further, the pair of opposing welding members have an external shape of a cylinder, an ellipsoid, or a polygon, and the end surface shape thereof is a circle, an ellipsoid, or a polygon.

The utility model discloses the positive effect who has is: the centering structure is arranged at the opposite ends of the pair of opposite welding components, so that the printing wires after welding can be ensured to be in a straight line; through crossing butt joint hole center respectively with a pair of relative butt fusion part and dividing into two along the axial, be provided with location structure on dividing into two butt fusion part opposite faces, can guarantee that the butt fusion part of lock together can form circular butt joint hole, can guarantee can not misplace in axial and footpath, through leaving 0.5 to the clearance of 3mm at the butt joint department of centering boss tip and centering counter bore bottom, can guarantee the butt fusion of butt joint portion on the one hand, prevent to produce welding stress, can improve welding strength, in addition, be convenient for utilize the cutter to connect the shearing, compare with prior art's polishing, easy operation, repair is fast, welding speed and welding strength have been improved, through utilizing convex-concave butt joint groove, convex-concave butt joint post, public female hasp structure, operating speed has greatly been improved, the dismouting of screw has been removed from, the dismouting procedure has been simplified, utilize the utility model discloses, reducible printing silk's waste, practice thrift the cost, improve the butt joint precision, improve to the butt joint success rate, improve butt joint strength, reduce correction time, improve 3D printing efficiency.

Drawings

Fig. 1 is a schematic structural view of a first fused component.

Fig. 2 is a schematic structural view of a second welding part.

FIG. 3 is a schematic view of a positioning structure of a strip on one side of a welding component.

FIG. 4 is a schematic view of the positioning structure of the strip on the opposite side of the welding part.

FIG. 5 is a schematic view of a structure of a positioning structure on one side of a welding component.

Fig. 6 is a schematic view of the positioning structure of the strip on two opposite sides of the welding component.

FIG. 7 is a schematic view of a male docking post positioning structure of the fusion splice component.

FIG. 8 is a schematic view of a positioning structure of two concave butt-pits of the welding component.

FIG. 9 is a schematic view of a fused printing filament configuration after removal of the fusing components.

Fig. 10 is a schematic structural diagram of a main body of a conventional docking device.

Description of the reference symbols: the welding component comprises a first welding component 10, a first half welding component 10a, a first half welding component 10b, a centering boss 11, a first half centering boss 11a, a second half centering boss 11b, a first part convex strip positioning structure 12a, a first part concave groove positioning structure 12b, a first part positioning surface 13a, a second part positioning surface 13b, a second welding component 20, a second half welding component 20a, a second half welding component 20b, a centering counter bore 21, a first half centering counter bore 21a, a second half centering counter bore 21b, a second part convex strip positioning structure 22a, a second part concave groove positioning structure 22b, a first part positioning surface 23a, a second part positioning surface 23b, a convex column abutting surface 33a, a convex column 34a, a concave pit abutting surface 43b, a concave abutting pit 44b, a first abutting sheet 50a, a second abutting sheet 50b, an abutting hole 52, a first semicircular abutting hole 52a, a second semicircular abutting hole 52b, an abutting end 53, a screw 53a, a central hole 54, a printing wire 60 and a flange 61.

Detailed Description

The following describes a specific embodiment of the present invention with reference to the drawings.

A welding device for an FDM3D printer printing wire consumable, wherein FIG. 1 is a structural schematic diagram of a first welding component 10, FIG. 2 is a structural schematic diagram of a second welding component 20, the welding device comprises a pair of opposite welding components, the pair of opposite welding components are the first welding component 10 and the second welding component 20 respectively, a pair of opposite welding component center positions are provided with butt joint holes 52 with the same diameter, the centers of the pair of opposite welding component butt joint holes 52 are on the same straight line, and the pair of opposite welding components are axially divided into two parts respectively through the centers of the butt joint holes, namely: the welding component I10 and the other half welding component I10 b, the welding component I10 comprises the half welding component I10 a and the other half welding component I10 b, the welding component II 20 comprises the half welding component II 20a and the other half welding component II 20b, opposite ends of a pair of opposite welding components are provided with centering structures, each centering structure comprises a centering boss 11 and a centering counter bore 21, the centering bosses 11 and the centering counter bores 21 are the same as the welding components, the centers of the butting holes 52 are divided into two parts along the axis, the opposite surfaces of the welding components are divided into two parts which are provided with positioning structures, when in welding, two ends of a broken printing wire 60 are respectively inserted into opposite ends with the centering structures 11 from the outside of the welding component I10 and the outside of the welding component II 20, and the opposite sword holes of the first welding component 10 and the second welding component 20 are relatively separated by a certain distance, the two opposite broken ends are heated and melted by a lighter, an alcohol lamp and the like, then the first welding component 10 and the second welding component 20 are close to each other, the pair of opposite broken ends are butted, the centering structures 11 arranged at the opposite ends of the first welding component 10 and the second welding component 20 are anastomosed together, later, the opposite welding parts are separated from the positioning structures, the welding flanges 61 formed at the gaps of the butting parts are cut by taking out the positioning wires after welding, and the printing wires 60 after welding can be directly used for printing.

The centering structure comprises a centering boss 11 and a centering counter bore 21 which are respectively arranged at opposite ends of two welding parts, the centers of the centering boss 11 and the centering counter bore 21 are consistent with the center of a butt joint hole, the centering boss 11 and the welding part I10 are integrated, the centering boss 11 is divided into two parts, namely, a half of the centering boss 11a and a half of the centering boss 11b, the centering counter bore 21 is also integrated with the welding part II 20, the centering counter bore 21 is divided into two parts, namely, a half of the centering counter bore 21a and a half of the centering counter bore 21b, a gap smaller than 0.5mm to 3mm is reserved at the butt joint part between the end part of the centering boss 11 and the bottom of the centering counter bore 21, namely, the gap part forms a flange 61 after being heated and solidified.

The diameter of the butt joint hole 52 is increased by 0.05mm to 0.2mm on the basis of the diameter of the printing wire 60, the length of the printing wire 60 is larger than 50mm, the welding parts are made of high-temperature-resistant plastics, metal materials and glass, the diameter of the butt joint hole of the welding parts is 0.5 to 10mm, the appearance shapes of a pair of opposite welding parts are cylinders, ellipsoids and polygonal bodies, and the end faces of the opposite welding parts are circular, elliptical or polygonal.

The positioning structure comprises a convex butt joint strip, a concave butt joint groove, a convex butt joint column, a concave butt joint pit and a male and female buckle, wherein the clearance between the convex butt joint strip and the concave butt joint groove, and the clearance between the convex butt joint column and the concave butt joint pit is smaller than 0.05mm.

Embodiment of the positioning Structure

Fig. 3 is a schematic structural view of a strip-shaped positioning structure on one side of a first welding component 10, fig. 4 is a schematic structural view of a strip-shaped positioning structure on the opposite side of the first welding component 10, fig. 5 is a schematic structural view of one side of a second welding component 20, fig. 6 is a schematic structural view of the opposite side of the second welding component 20, in an embodiment, the positioning structure comprises a first welding component 10a and a second welding component 10b which are formed by dividing the first welding component 10 into two parts along the center of a butt hole in the axial direction, and a first component positioning surface 13a and a second component positioning surface 13b are respectively arranged on opposite surfaces of the first welding component 10a and the second welding component 10b, wherein a first component positioning surface 13a forms a first axial semicircular butt hole 52a in the center, and a first component protrusion positioning structure 12a is symmetrically arranged on two sides of the semicircular butt hole 52 a; the center of the second positioning surface 13b of the component also forms a second axial semicircular butt joint hole 52b, two sides of the second semicircular butt joint hole 52b are symmetrically provided with a first component groove positioning structure 12b, and the first component convex strip positioning structure 12a and the first component groove positioning structure 12b are buckled to form a first semi-fusion component 10a.

Similarly, the second welding component 20 is axially divided into a half second welding component 20a and the other half second welding component 20b along the center of the abutting hole 52, a semicircular abutting hole 52a is formed on a first positioning surface 23a of the divided second part of the half second welding component 20a, and second protruding strip positioning structures 22a are symmetrically arranged on a first positioning surface 23a of a second part of the first semicircular abutting hole 52 a;

a second circular abutting hole 52b is formed in the center of a second component positioning surface 23b of the other second half of the welding component 20b, second component groove positioning structures 22b are symmetrically arranged on the second positioning surface 23b of the second side component of the second semicircular abutting hole 52b, and the second component convex strip positioning structures 22a and the second component groove positioning structures 22b are buckled to form the other second half of the welding component 20b.

Second embodiment of the positioning structure

FIG. 7 is a schematic view of a male docking post positioning feature of the fusion splice component. A plurality of convex columns 34a are formed on a convex column butt joint surface 33a of a convex butt joint column positioning structure of the welding component, and a plurality of matched concave butt joint pits are correspondingly arranged on an opposite surface. The schematic diagram of the positioning structure of the concave butt-joint pit of the first welding component is shown in fig. 8, and the difference is that the end face of the centering structure of the first welding component is a centering boss 11, and the end part of the second welding component is a centering counter bore 20.

Fig. 8 is a schematic diagram of a concave docking pit positioning structure of a second welding component, a plurality of concave docking pits 44b are arranged on a pit docking surface 43b of the concave docking pit positioning structure of the second welding component, and a convex docking post positioning structure of the second welding component on the opposite surface is shown in fig. 7, except that the end surface of a centering structure of the welding component is a centering boss 11, and the end part of the second welding component is a centering counterbore 20.

Embodiment III of the positioning structure

In the first embodiment, the length of the part-ridge positioning structure 12a or the part-groove positioning structure 12b is shortened at the same time, and the shortened part-ridge positioning structure 12a or the shortened part-groove positioning structure 12b is preferably arranged at an axially intermediate position, so that the positioning is more accurate and the axial misalignment is not easily caused.

Embodiment III of the positioning structure

And the alignment surfaces of the half of the first welding component 10a and the other half of the first welding component 10b or the half of the second welding component 20a and the other half of the second welding component 20b are simultaneously provided with a convex column (a convex column 34 a) and a matched butt pit (a concave butt pit 44 b) which are matched with each other, and the first welding component 10 and the second welding component 20 are formed after alignment.

The convex column can also be made into structures such as a cone, a truncated cone, a polygon and the like, and the opposite surface is made into a matched concave butt joint pit, which also belongs to the scope of the utility model.

The welding step of the broken printing wire 60 is as follows:

1. respectively combining a first welding component 10 and a second welding component 20 (the combined state is shown in figures 1 and 2);

2. the broken printing wire 60 is threaded through the docking hole 52 from the opposite side of the opposite end to extend out of the centering structure of the opposite end

3. A heated lighter and an alcohol lamp are fixedly arranged and ignited;

4. horizontally holding the first welding component 10 and the second welding component 20 by two hands respectively to enable the end part of the broken printing wire 60 to be relatively close to a flame part in a short distance, heating and melting the broken end, and then butting the printing wire;

5. then, butting the opposite centering bosses 11 and the centering counterbores 21 to enable the ends of the first handheld welding component 10 and the second handheld welding component 20 to be tightly attached;

6. after cooling for about 1 minute, respectively detaching the opposite pair of welding parts along the positioning surface, detaching and separating, and taking out the positioning wire 60 after welding, wherein FIG. 9 is a structural schematic diagram of the welding printing wire after detaching the welding parts;

7. the flange 61 is sheared off by a shearing tool to make the surface smooth and, if necessary, slightly polished.

In this embodiment, the nail clipper with the inclined cutting opening is used to cut.

The utility model discloses the positive effect who has is: the centering structures are arranged at the opposite ends of a pair of opposite welding components, so that the butt joint holes 52 of the first welding component 10 and the second welding component 20 can be ensured to be in a straight line, and the printing wire 60 after welding is in an axis; a pair of opposite welding parts are divided into two parts along the axial direction through the center of the butt joint hole 52 respectively to form a half welding part I10 a, a half welding part I10 b or a half welding part II 20a, and a half welding part II 20b, and the opposite surfaces of the half welding part I10 a, the half welding part I10 b or the half welding part II 20a, and the half welding part II 20b are provided with positioning structures, so that the welding parts buckled together can form a circular butt joint hole 52, the axial direction and the radial direction can be ensured not to be dislocated, and a gap of 0.5 to 3mm is reserved at the butt joint part of the centering boss end 11 and the centering counterbore bottom 21, can guarantee the butt fusion of butt joint portion on the one hand, prevent to produce welding stress, can improve weld strength, in addition, be convenient for utilize the cutter to connect the shearing, compare with prior art's polishing, easy operation, repair fastly, improved welding speed and weld strength, through utilizing convex-concave butt joint groove, convex-concave butt joint post, public female hasp structure, greatly improved operating speed, removed the dismouting of screw from, simplified the dismouting procedure, utilize the utility model discloses, reducible printing silk 60's waste is practiced thrift the cost, improves the butt joint precision, improves to the butt fusion success rate, improves butt joint strength, reduces correction time, improves 3D printing efficiency.

Claims (7)

1. The utility model provides a butt fusion device that is used for FDM3D printer printing silk consumptive material which characterized in that: the welding device comprises a pair of opposite welding components, wherein the center positions of the pair of opposite welding components are provided with butt joint holes with the same diameter, opposite ends of the pair of welding components are provided with centering structures which are matched with each other and are concentric with the butt joint holes, the centers of the butt joint holes of the pair of opposite welding components are positioned on the same straight line, the pair of opposite welding components are respectively divided into two parts along the axial direction through the centers of the butt joint holes, and the dividing surfaces of the two parts are provided with positioning structures.

2. The fusing device for an FDM3D printer print wire consumable of claim 1, wherein: the centering structure comprises a centering boss and a centering counter bore, wherein opposite ends of the two welding parts are respectively provided with the centering boss and the centering counter bore, the centering boss and the centering counter bore are concentric with the center of the counter bore, a gap of 0.5 to 3mm is reserved at the butt joint of the end part of the centering boss and the bottom of the centering counter bore, and a flange is formed at the gap part.

3. The fusion apparatus for an FDM3D printer print wire consumable of claim 1, wherein: the positioning structure comprises a convex butt joint strip, a concave butt joint groove, a convex butt joint column, a concave butt joint pit and a male-female hasp, and the clearance between the convex butt joint strip and the concave butt joint groove, and the clearance between the convex butt joint column and the concave butt joint pit is less than 0.05mm.

4. The fusion apparatus for an FDM3D printer print wire consumable of claim 1, wherein: the diameter of the butt joint hole is 0.05mm to 0.2mm larger than that of the printing wire.

5. The fusion apparatus for an FDM3D printer print wire consumable of claim 1, wherein: the welding parts are made of high-temperature-resistant plastics, metal materials and glass.

6. The fusion apparatus for an FDM3D printer print wire consumable of claim 1, wherein: the diameter of the butt joint hole of the welding component is 0.5-10mm.

7. The fusion apparatus for an FDM3D printer print wire consumable of claim 1, wherein: the appearance shape of a pair of opposite welding parts is a cylinder, an ellipsoid or a polygon, and the end surface shape of the welding parts is a circle, an ellipsoid or a polygon.

Images