Fiber rib building 3D printing device

Abstract

The invention belongs to the field of building 3D printing, and particularly relates to a fiber rib building 3D printing device which comprises a mechanical arm, a spraying and building device, a swing supporting device, a fiber yarn spraying device, a fiber rib guiding-out device and a guiding-out mechanism. The swing supporting devices are installed on the two sides of the end of the mechanical arm correspondingly, the lower ends of the swing supporting devices on the two sides are fixedly connected with the fiber yarn spraying device and the fiber rib guiding-out device correspondingly, and the guiding-out mechanism is fixedly connected to the portions, above the fiber rib guiding-out device, of the swing supporting devices. And the fiber rib is arranged in the fiber rib leading-out device. According to the device, when a building is subjected to 3D printing and reciprocating multi-layer spray-building printing, fiber yarn spraying and fiber rib inserting can be synchronously carried out, and the strength and stability of a printed wall are enhanced.

Description

Technical Field

[0001] The present invention relates to the field of architectural 3D printing, and in particular to a fiber reinforcement architectural 3D printing device. Background Art

[0002] In recent years, architectural 3D printing technology has demonstrated significant advantages in the field of complex structure construction due to its high efficiency, low carbon, and intelligent features. However, existing technologies generally face the problem of synchronous molding of fiber-reinforced structures and matrix materials. Traditional printing devices mostly focus on the layer-by-layer stacking of concrete materials, but lack effective solutions for the continuous introduction, precise positioning, and dynamic coordination of fiber reinforcements with the printing path. This results in uneven distribution of reinforcement structures and weak interface bonding, affecting the mechanical properties of components. Especially in special-shaped building components, the bending and laying requirements of fiber reinforcements are not coordinated enough with the movement of the printing equipment, which can easily lead to fiber dislocation, breakage, or accumulation of redundant materials, which seriously restricts the reinforcement effect and construction efficiency.

[0003] In addition, existing fiber laying technologies mostly rely on pre-embedding or post-processing processes, which cannot achieve instant fusion of fiber filaments and the matrix during the printing process. This not only increases the complexity of the process, but also causes the risk of interlayer delamination due to secondary operations. Some equipment attempts to integrate fiber delivery functions, but they are limited by the rigid guide structure and are difficult to adapt to the dynamic adjustment of the printing path. In addition, the accuracy of fiber cutting and positioning is insufficient, resulting in material waste or structural defects. For example, the intermittent feeding of the fiber reinforcement derivation device does not match the continuous movement of the robotic arm, which can easily lead to reinforcement material jamming or supply interruption; and the free drooping of the fiber filaments after being ejected lacks length control, affecting the uniformity of the thickness of the reinforcement layer.

[0004] Therefore, in order to solve the above problems, a fiber reinforcement building 3D printing device is proposed. Summary of the Invention

[0005] The present invention aims to solve the above-mentioned problems and specifically designs a fiber reinforcement building 3D printing device. This device can simultaneously eject fiber filaments and insert fiber reinforcements during reciprocating multi-layer spray printing when 3D printing buildings, thereby enhancing the strength and stability of the printed wall.

[0006] To achieve the above-mentioned objectives, the present invention provides a fiber reinforcement building 3D printing device, comprising: a robotic arm, a spraying device, a swinging support device, a fiber filament ejecting device, a fiber reinforcement derivation device and an derivation mechanism, wherein the spraying device is installed at the end of the robotic arm, and the swinging support device is installed on both sides of the end of the robotic arm, and the lower ends of the swinging support devices on both sides are respectively fixedly connected to the fiber filament ejecting device and the fiber reinforcement derivation device, and the derivation mechanism is fixedly connected to the swinging support device above the fiber reinforcement derivation device, and the fiber reinforcement is placed in the fiber reinforcement derivation device.

[0007] Through the above method, the fiber filament spraying device and the fiber rib leading device installed on both sides of the spraying device can spray the fiber filaments in front of the forward direction of the spraying device and insert the fiber ribs in the rear. After the fiber ribs of the base layer are inserted, the top ends of the fiber ribs extend out of the spraying layer. When the subsequent spraying layer is printed, the fiber filaments are wound on the fiber ribs. Similarly, the fiber filaments of a higher layer are wound on the fiber ribs of a lower layer. The fiber ribs provide a fulcrum for the installation of the fiber filaments, which can raise the height of the installation plane of the fiber filaments, so that after the cement mortar is sprayed, the fiber filaments are located in the middle of this spraying layer, rather than at the junction between each layer, further improving the filling effect of the fiber filaments on the spraying layer and improving the structural strength of the spraying layer.

[0008] Furthermore, the fiber tendon extraction device includes a storage barrel and a pushing mechanism, the storage barrel is fixedly connected to the lower part of the swing support device, one side of the pushing mechanism is placed inside the storage barrel, and the other side is slidably connected to the outer surface of the storage barrel.

[0009] Furthermore, the material storage barrel includes a volute groove and a volute plate, the volute plate is fixedly connected to the interior of the material storage barrel, and the volute groove is opened at the bottom of the material storage barrel and is staggered with the volute plate.

[0010] Furthermore, the pushing mechanism includes: a support plate, a long plate, a pushing rod and a driving part. The outer wall of the storage barrel is fixedly connected to a gear ring. The support plate is vertically arranged on the side of the storage barrel. One end of the support plate is slidably connected to the long plate. The driving part is installed in the middle of the support plate. The driving part is connected to the gear ring. The end of the long plate passes through the volute groove and is connected to the pushing rod. The pushing rod is placed in the volute plate.

[0011] In this method, the drive unit is a motor with a gear connected to the output end. The gear cooperates with the ring gear. The drive unit moves on the ring gear, driving the support plate to rotate around the storage barrel. The support plate drives the long plate to move in the volute groove. As it moves, the long plate moves toward the center of the storage barrel, sliding on the support plate to extend. A push rod is connected to the long plate. Fiber ribs are placed inside the volute plate. As the push rod moves with the long plate, it pushes the fiber ribs into the storage barrel and drops them through the through hole.

[0012] Furthermore, a through hole is provided on the storage barrel, and the export mechanism includes: a turntable, a limit plate, a connecting rod, a slider and a guide rod, the turntable is rotatably connected to the top of the limit plate, the limit plate is fixedly connected to the swing support device above the storage barrel, one end of the connecting rod is rotatably connected to the turntable, and the other end of the connecting rod is rotatably connected to the slider, a sliding groove is provided on the limit plate, the slider is slidably connected in the sliding groove, the lower part of the slider is fixedly connected to the guide rod, and the guide rod is placed in the through hole.

[0013] In the above manner, the guide mechanism can push the fiber reinforcement by the guide rod through reciprocating motion, so that the fiber reinforcement is inserted into the sprayed layer.

[0014] Furthermore, the swing support device includes: a fixed plate, a rotating plate and a motor, the fixed plate is fixedly connected to both sides of the end of the robotic arm, the rotating plate is a right-angled plate structure, one end of the rotating plate is fixedly connected to the end of the fixed plate, and the motor is provided at the connection.

[0015] Furthermore, the fiber filament ejecting device includes a storage box and a spinneret, the storage box is fixedly connected to the swing support device, and the spinneret is arranged at the lower part of the storage box.

[0016] Furthermore, it also includes a cutting device, which is arranged at the lower part of the spinneret.

[0017] Furthermore, the cutting device includes: a mounting plate, a fixed cutter, a reciprocating cutter and an electric telescopic rod, the two mounting plates are fixedly connected to the fiber filament ejection device and are located on both sides of the spinneret, the fixed cutter is fixedly connected to one of the mounting plates, and the reciprocating cutter is slidably connected to the other mounting plate through the electric telescopic rod.

[0018] In the above manner, the cutting device drives the reciprocating cutter through the electric telescopic rod to cut the fiber filaments.

[0019] Furthermore, it also includes a balancing device, which is fixedly connected to the upper part of the storage barrel. The balancing device includes a hollow ring and an annular groove. The hollow ring is fixedly connected to the upper part of the storage barrel, and the annular groove is opened on the side of the hollow ring. The top of the support plate is fixedly connected with a clamping column, and the clamping column is slidably connected in the annular groove.

[0020] In the above manner, the top of the support plate is slidably connected to the storage barrel through the balancing device, so that when the support plate moves in a circular motion, it can have a more stable effect.

[0021] In summary, the fiber reinforcement building 3D printing device of the present invention has the following advantages and beneficial technical effects: 1. The fiber filament ejection device and fiber rib guide device installed on both sides of the spraying device of the present invention can eject fiber filaments in the front of the spraying device in the forward direction and insert fiber ribs in the rear. After the fiber ribs are inserted in the base layer, the top of the fiber ribs extends out of the spraying layer. When printing the subsequent spraying layer, the fiber filaments are wound on the fiber ribs. Similarly, the fiber filaments of the higher layer are wound on the fiber ribs of the lower layer. The fiber ribs provide a fulcrum for the installation of the fiber filaments, raising the height of the installation plane of the fiber filaments. After the cement mortar is sprayed, the fiber filaments are located in the middle of the spraying layer, rather than at the junction between each layer. This further improves the filling effect of the fiber filaments on the spraying layer and improves the structural strength of the spraying layer. 2. The fiber reinforcement building 3D printing device of the present invention can push the fiber reinforcement out of the storage barrel through the guide mechanism, making the fiber reinforcement insertion position more precise and the insertion speed faster without affecting the spraying process; 3. The present invention provides a swing support device for a fiber reinforcement building 3D printing device, which can change the direction of the fiber filament ejection device and the fiber reinforcement lead-out device installed thereon, thereby facilitating the turning operation when spraying buildings with complex structures, so that the work of various parts is not affected, thereby improving the versatility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments with reference to the following drawings, in which: Figure 1 This is a schematic structural diagram of a fiber reinforcement building 3D printing device according to the present invention; Figure 2 This is a schematic diagram of the front-end structure of a fiber reinforcement building 3D printing device of the present invention; Figure 3 This is a structural diagram of the front end bottom of a fiber reinforcement building 3D printing device of the present invention; Figure 4 This is a schematic diagram of the internal structure of a material storage barrel of a fiber reinforcement building 3D printing device of the present invention; Figure 5 This is a cross-sectional view of a storage barrel of a fiber reinforcement building 3D printing device according to the present invention; Figure 6 This invention Figure 2 A magnified view of middle A; Figure 7 This invention Figure 5 Enlarged view of middle B; Figure 8 This invention Figure 3 Enlarged view of middle C; Figure 9 It is a schematic diagram of the present invention after spraying; Figure 10 It is a schematic diagram of the top view after spraying of the present invention.

[0023] The reference numerals in the accompanying drawings are: 1-Robotic arm; 2-Spraying device 3-swing support device; 31-fixed plate; 32-rotating plate; 33-motor; 4-fiber yarn ejection device; 41-material storage box; 42-spinneret; 5-fiber rib guide device; 51-storage barrel; 511-through hole; 512-gear ring; 513-volute groove; 514-volute plate; 52-push mechanism; 521-support plate; 522-long plate; 523-push rod; 524-driving part; 525-limiting column; 526-clamping sleeve; 527-clamping column; 53-balance device; 531-hollow ring; 532-annular groove; 6-export mechanism; 61-turntable; 62-limiting plate; 63-connecting rod; 64-slider; 65-guide rod; 7-cutting device; 71-mounting plate; 72-fixed cutter; 73-reciprocating cutter; 74-electric telescopic rod; 8-sprayed layer; 9-fiber reinforcement; 10-fiber filament. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the implementation of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions; the embodiments described are part of the embodiments of the present invention, not all of the embodiments; the embodiments and directional terms described below with reference to the drawings are exemplary and intended to be used to explain the present invention, and cannot be understood as limitations on the present invention; based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The parts and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field. The embodiments of the present invention are described in detail below in conjunction with the drawings: Example 1 like Figure 1 and Figure 2As shown, it includes: a robotic arm 1, a spraying device 2, a swing support device 3, a fiber filament ejecting device 4, a fiber tendon derivation device 5 and a derivation mechanism 6. The spraying device 2 is installed at the end of the robotic arm 1, and the swing support devices 3 are installed on both sides of the end of the robotic arm 1. The lower ends of the swing support devices 3 on both sides are fixedly connected to the fiber filament ejecting device 4 and the fiber tendon derivation device 5 respectively. The derivation mechanism 6 is fixedly connected to the swing support device 3 above the fiber tendon derivation device 5, and the fiber tendon is placed in the fiber tendon derivation device 5.

[0025] like Figure 2 、 Figure 3 and Figure 4 As shown, the fiber tendon extraction device 5 includes a storage barrel 51 and a pushing mechanism 52. The storage barrel 51 is fixedly connected to the lower part of the swing support device 3 by welding. One side of the pushing mechanism 52 is placed inside the storage barrel 51, and the other side is slidably connected to the outer surface of the storage barrel 51.

[0026] like Figure 4 and Figure 5 As shown, the storage barrel 51 includes a volute groove 513 and a volute plate 514 . The volute plate 514 is fixedly connected to the inside of the storage barrel 51 by welding. The volute groove 513 is opened at the bottom of the storage barrel 51 and is staggered with the volute plate 514 .

[0027] like Figure 4 As shown, the pushing mechanism 52 includes: a support plate 521, a long plate 522, a pushing rod 523 and a driving part 524. The outer wall of the storage barrel 51 is fixedly connected to the ring gear 512 by bolt connection. The support plate 521 is vertically arranged on the side of the storage barrel 51. One end of the support plate 521 is slidably connected to the long plate 522. The lower end of the support plate 521 is integrally provided with a sleeve-shaped structure. The long plate 522 is slidably connected to the lower end of the support plate 521. The driving part 524 is installed in the middle of the support plate 521 and is connected to the ring gear 512. The end of the long plate 522 passes through the volute groove 513 and is connected to the pushing rod 523. The diameter of the pushing rod 523 is greater than the width of the volute groove 513. The pushing rod 523 is placed in the volute plate 514. The pushing rod 523 can move in the channel in the volute plate 514 to push the fiber ribs therein.

[0028] like Figure 2 、 Figure 5 and Figure 6As shown, a through hole 511 is also provided on the storage barrel 51, and the lead-out mechanism 6 includes: a turntable 61, a limit plate 62, a connecting rod 63, a slider 64 and a guide rod 65. The turntable 61 is rotatably connected to the top of the limit plate 62, and the limit plate 62 is fixedly connected to the swing support device 3 above the storage barrel 51. A motor for rotating the turntable 61 is installed on the swing support device 3. One end of the connecting rod 63 is rotatably connected to the turntable 61, and the other end of the connecting rod 63 is rotatably connected to the slider 64. A slide groove is provided on the limit plate 62, and the slider 64 is slidably connected in the slide groove. The lower part of the slider 64 is fixedly connected to the guide rod 65 by bolt connection, and the guide rod 65 is placed in the through hole 511.

[0029] like Figure 2 As shown, the swing support device 3 includes: a fixed plate 31, a rotating plate 32, and a motor 33. The fixed plate 31 is fixedly connected to both sides of the end of the robot arm 1 by welding. The rotating plate 32 is a right-angled plate structure. One end of the rotating plate 32 is connected to the end of the fixed plate 31, and the motor 33 is provided at the connection. The motor 33 is located on the fixed plate 31 and can drive the rotating plate 32 to swing relative to the fixed plate 31 through the output shaft.

[0030] like Figure 2 and Figure 3 As shown, the fiber filament ejecting device 4 includes a storage box 41 and a spinneret 42 . The storage box 41 is fixedly connected to the swing support device 3 by bolts, and the spinneret 42 is arranged at the lower part of the storage box 41 .

[0031] like Figure 3 and Figure 8 As shown, the cutting device 7 is further included. The cutting device 7 is arranged at the lower part of the spinneret 42. The cutting device 7 includes: a mounting plate 71, a fixed cutter 72, a reciprocating cutter 73 and an electric telescopic rod 74. The two mounting plates 71 are fixedly connected to the fiber filament ejection device 4 by bolt connection and are located on both sides of the spinneret 42. The fixed cutter 72 is fixedly connected to one of the mounting plates 71 by welding, and the reciprocating cutter 73 is slidably connected to the other mounting plate 71 via the electric telescopic rod 74. The reciprocating cutter 73 is driven by the electric telescopic rod 74 to move back and forth to cut the fiber filaments ejected from the spinneret 42.

[0032] like Figure 4 As shown, the supporting plate 521 further includes a balancing device 53, which is fixedly connected to the upper portion of the storage barrel 51. The balancing device 53 includes a hollow ring 531 and an annular groove 532. The hollow ring 531 is fixedly connected to the upper portion of the storage barrel 51 by bolts. The side of the hollow ring 531 is provided with an annular groove 532. A clamping column 527 is fixedly connected to the top of the support plate 521, and the clamping column 527 is slidably connected to the annular groove 532. The end of the clamping column 527 is clamped in the annular groove 532 and can slide.

[0033] Example 2 like Figure 5 and Figure 7 As shown, the difference between this embodiment and the above embodiment is that this embodiment also includes a limiting column 525 and a sleeve 526, the sleeve 526 is rotatably connected to the top of the push rod 523, the limiting column 525 is fixedly connected to both sides of the sleeve 526, and a slide groove is provided at the top of each surface of the inner wall of the spiral plate 514. The end of the limiting column 525 is clamped in the slide groove and slides in the slide groove, which limits the top of the push rod 523, and the force on the push rod 523 is more stable when it moves.

[0034] The method for using the fiber reinforcement building 3D printing device of the present invention is as follows: like Figure 9 As shown, when printing, the spraying device 2 first prints the spraying layer of the base layer, and through the intermittent movement of the driving part 524, drives the pushing rod 523 to push the fiber reinforcement to the through hole 511. When the fiber reinforcement falls, the top pushing mechanism 52 applies force to assist insertion, and controls the insertion length to be half the length of the fiber reinforcement. When printing the next layer, first swing the support device 3 and the movement of the robot arm 1 to coordinate so that the fiber filament is wound around the fiber reinforcement at the end, and then print. The swing support device 3 swings back and forth to control the fiber filament spraying device 4 to swing so that the fiber filament is wound around the fiber reinforcement. The spraying device 2 sprays, and at the same time, the fiber reinforcement lead-out device 5 at the rear inserts the fiber reinforcement. The fiber reinforcement of each layer is spaced apart from the fiber reinforcement of the lower layer.

[0035] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the above embodiments, or that some of the technical features may be replaced with equivalents; such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A fiber reinforcement building 3D printing device, characterized in that: include: A robotic arm (1), a spraying device (2), a swing support device (3), a fiber filament ejecting device (4), a fiber tendon guide device (5) and a guide mechanism (6), wherein the spraying device (2) is installed at the end of the robotic arm (1), the swing support device (3) is installed on both sides of the end of the robotic arm (1), the lower ends of the swing support devices (3) on both sides are fixedly connected to the fiber filament ejecting device (4) and the fiber tendon guide device (5), respectively, the guide mechanism (6) is fixedly connected to the swing support device (3) above the fiber tendon guide device (5), and the fiber tendon is placed in the fiber tendon guide device (5).

2. A fiber reinforcement building 3D printing device according to claim 1, characterized in that: The fiber tendon outlet device (5) comprises a storage barrel (51) and a pushing mechanism (52), wherein the storage barrel (51) is fixedly connected to the lower part of the swing support device (3), and one side of the pushing mechanism (52) is placed inside the storage barrel (51), and the other side is slidably connected to the outer surface of the storage barrel (51).

3. A fiber reinforcement building 3D printing device according to claim 2, characterized in that: The material storage barrel (51) comprises a volute groove (513) and a volute plate (514), wherein the volute plate (514) is fixedly connected to the interior of the material storage barrel (51), and the volute groove (513) is opened at the bottom of the material storage barrel (51) and is staggered with the volute plate (514).

4. A fiber reinforcement building 3D printing device according to claim 3, characterized in that: The pushing mechanism (52) comprises: a support plate (521), a long plate (522), a pushing rod (523) and a driving part (524); the outer wall of the storage barrel (51) is fixedly connected to a gear ring (512); the support plate (521) is vertically arranged on the side of the storage barrel (51); one end of the support plate (521) is slidably connected to the long plate (522); the driving part (524) is installed in the middle of the support plate (521); the driving part (524) is connected to the gear ring (512); the end of the long plate (522) passes through the volute groove (513) and is connected to the pushing rod (523); and the pushing rod (523) is placed in the volute plate (514).

5. The fiber reinforcement building 3D printing device according to claim 2, characterized in that: The storage barrel (51) is also provided with a through hole (511), and the lead-out mechanism (6) comprises: a turntable (61), a limit plate (62), a connecting rod (63), a slider (64) and a guide rod (65), wherein the turntable (61) is rotatably connected to the top of the limit plate (62), and the limit plate (62) is fixedly connected to the swing support device (3) above the storage barrel (51), one end of the connecting rod (63) is rotatably connected to the turntable (61), and the other end of the connecting rod (63) is rotatably connected to the slider (64), a sliding groove is provided on the limit plate (62), and the slider (64) is slidably connected in the sliding groove, and the lower part of the slider (64) is fixedly connected to the guide rod (65), and the guide rod (65) is placed in the through hole (511).

6. The fiber reinforcement building 3D printing device according to claim 1, characterized in that: The swing support device (3) comprises: a fixed plate (31), a rotating plate (32) and a motor (33); the fixed plate (31) is fixedly connected to both sides of the end of the mechanical arm (1); the rotating plate (32) is a right-angled plate structure; one end of the rotating plate (32) is connected to the end of the fixed plate (31), and the motor (33) is provided at the connection.

7. The fiber reinforcement building 3D printing device according to claim 1, characterized in that: The fiber filament ejecting device (4) comprises a material storage box (41) and a spinneret (42), wherein the material storage box (41) is fixedly connected to the swing support device (3), and the spinneret (42) is arranged at the lower part of the material storage box (41).

8. The fiber reinforcement building 3D printing device according to claim 7, characterized in that: It also includes a cutting device (7), which is arranged at the lower part of the spinneret (42).

9. The fiber reinforcement building 3D printing device according to claim 8, characterized in that: The cutting device (7) comprises: a mounting plate (71), a fixed cutter (72), a reciprocating cutter (73) and an electric telescopic rod (74), wherein the two mounting plates (71) are fixedly connected to the fiber filament ejection device (4) and are located on both sides of the spinneret (42), the fixed cutter (72) is fixedly connected to one of the mounting plates (71), and the reciprocating cutter (73) is slidably connected to the other mounting plate (71) via the electric telescopic rod (74).

10. The fiber reinforcement building 3D printing device according to claim 4, characterized in that: The invention also includes a balancing device (53), wherein the balancing device (53) is fixedly connected to the upper part of the storage barrel (51), and the balancing device (53) includes a hollow ring (531) and an annular groove (532). The hollow ring (531) is fixedly connected to the upper part of the storage barrel (51), and the annular groove (532) is provided on the side of the hollow ring (531). A clamping column (527) is fixedly connected to the top of the support plate (521), and the clamping column (527) is slidably connected to the annular groove (532).

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