3D printing equipment of high-strength reinforced structure floating body and machining method of 3D printing equipment

Abstract

The invention relates to the technical field of 3D printing, and discloses 3D printing equipment of a high-strength reinforced structure floating body and a machining method of the 3D printing equipment. The 3D printing device comprises a printing assembly, a movement control assembly and a connecting plate assembly connected with the printing assembly and the movement control assembly, the connecting opening assembly comprises a strip-shaped pipe mold, and a strip-shaped pipe notch matched with the strip-shaped pipe mold is formed in the blowing mold. The connecting plate assembly comprises a first connecting plate and a second connecting plate, the first connecting plate penetrates through the interior of the strip-shaped pipe mold to reach the interior of the floating body, the 3D printing device can be matched with blow molding equipment, the problem that a support cannot be manufactured in the floating body when the traditional blow molding equipment is used for machining the floating body is solved, and the production efficiency is improved. The produced float bowl has higher strength and is more durable, and even if the surface of the float bowl is damaged, the float bowl is still not prone to collapse.

Description

Technical Field

[0001] The present invention relates to the technical field of 3D printing, and in particular to a 3D printing device for a high-strength reinforced structural floating body and a processing method thereof. Background Art

[0002] The buoy is a hollow plastic product. It has gradually become popular in China due to its good impact resistance and reasonable price. The buoy has large buoyancy, is easy to install and operate, and basically does not require maintenance. In particular, the materials used in the current buoys are harmless to the environment. The use prospects of buoys will become more and more extensive. The use of buoys is very wide. Whether it is still water, static water, salt water, fresh water, almost as long as there is water, buoys can be used to their full potential. However, the existing buoys are all processed by blow molding, and it is impossible to add a supporting structure inside them during processing. The current buoys rely on internal air pressure to keep them inflated. The overall strength of the buoy is low. Once the surface of the buoy is damaged, the buoy will easily deflate. Summary of the invention

[0003] The object of the present invention is to provide a 3D printing device for a high-strength reinforced structural buoy and a processing method thereof, so as to solve the problem that the existing buoy production equipment is unable to process a reinforced structure inside the buoy.

[0004] The present invention is achieved through the following technical solutions:

[0005] In the first aspect, the present invention provides a 3D printing device for a high-strength reinforced structural floating body, comprising a 3D printing device, a blow molding mold and a connecting port assembly, wherein the 3D printing device comprises a printing assembly, a movement control assembly and a connecting plate assembly connecting the printing assembly and the movement control assembly, wherein the connecting port assembly comprises a bar tube mold, the blow molding mold is provided with a bar tube notch that cooperates with the bar tube mold, the connecting plate assembly comprises a first connecting plate and a second connecting plate, the first connecting plate passes through the bar tube mold to reach the interior of the floating body, the first connecting plate is controlled by the movement control assembly to move in space, the first connecting plate is hinged to the second connecting plate at one end inside the floating body, two second connecting plates are hinged on the first connecting plate, and the printing assembly is provided on the second connecting plate.

[0006] In a possible design, a first torsion spring is provided at a hinged position between each of the second connecting plates and the first connecting plate, and the first torsion spring can bring the two second connecting plates closer to each other.

[0007] In a possible design, the mobile control component includes a first mobile platform, a second mobile platform and a third mobile platform, wherein the first connecting plate is fixedly connected to the first mobile platform at one end outside the floating body, a first guide shaft is fixed to the second mobile platform, the first mobile platform slides on the first guide shaft, the first mobile platform is threadedly connected to the first driving screw, the first driving screw is fixed to the motor shaft of the first motor, a second guide shaft is fixed to the third mobile platform, the second mobile platform slides on the second guide shaft, the second mobile platform is threadedly connected to the second driving screw, the second driving screw is fixed to the motor shaft of the second motor, a pair of nut seats are fixed to the third mobile platform, each of the nut seats is threadedly connected to a third driving screw, one end of each of the third driving screws is fixed to the motor shaft of a third motor, and the third mobile platform is driven to perform lifting and lowering movements through the synchronous rotation of multiple third driving screws.

[0008] In one possible design, the printing assembly includes a print head, a print head mounting plate, a material guide tube and a print head driving assembly. The print head mounting plate is hinged to the second connecting plate, and two print head mounting plates are hinged to each of the second connecting plates. A print head is slidably arranged on each of the print head mounting plates, and the sliding of the print head on the print head mounting plate is controlled by the print head driving assembly.

[0009] In a possible design, one end of the material guide tube is fixed to the print head, and the interior of the material guide tube is connected to the interior of the print head.

[0010] In a possible design, a second torsion spring is provided at a hinged position between each of the print head mounting plates and the second connecting plate, and the second torsion spring can bring the two print head mounting plates on the same second connecting plate closer to each other.

[0011] In one possible design, the print head drive assembly includes a drive motor and a print head drive screw, the two ends of the print head drive screw are rotatably connected to two bearing seats, the two bearing seats are fixed on the print head mounting plate, the body of the drive motor is fixed on the print head mounting plate, the motor shaft of the drive motor is fixedly connected to one end of the print head drive screw, and a connecting block is also fixed on the print head, which is threadedly connected to the print head drive screw.

[0012] In one possible design, the print head mounting plate is in a vertical state with an inner wall of one side of the float after being unfolded, and two abutment blocks are fixed on the second connecting plate. The two abutment blocks are arranged on the second connecting plate near the print head mounting plate. When the print head mounting plate is unfolded, two mutually perpendicular planes on the abutment blocks contact the second connecting plate and the print head mounting plate respectively.

[0013] In a possible design, it also includes a pull-rope deployment mechanism, and the deployment of each print head mounting plate is controlled by one of the pull-rope deployment mechanisms. The pull-rope deployment mechanism includes a pull rope and multiple wire coils, one end of each of the pull ropes is fixedly connected to the print head mounting plate controlled by the pull-rope deployment mechanism, and the pull rope passes through at least two of the wire coils, one of the two wire coils is fixed on the second connecting plate and the other is fixed on the first connecting plate, and the connecting line of the two wire coils is located on the side of the hinge point between the second connecting plate and the first connecting plate close to the deployment direction of the second connecting plate.

[0014] On the other hand, the present invention provides a method for processing a high-strength reinforced structural floating body 3D printing device, comprising the following steps:

[0015] S1, open the two blow molds, make the printing assembly and the connecting plate assembly both in a closed state, and at the same time, make the printing assembly drop below the strip tube mold;

[0016] S2, making the raw material of the float in a softened state fall down, and when the raw material falls to the required processing length, closing the two blow molds, and extracting the air between the blow molds and the raw material, processing a float with a strip opening and a sealed plastic part;

[0017] S3, sending the printing assembly from the middle of the strip tube mold into the interior of the floating body by moving the control assembly, and unfolding the printing assembly and two second connecting plates after the printing assembly enters the floating body;

[0018] S4, after unfolding the printing assembly and the two second connecting plates, the four printing heads of the 3D printing device are controlled to work simultaneously according to the set program to print the support mounting seat on the inner wall of the floating body on both sides of the connecting plate assembly, and the four printing heads can work simultaneously during printing;

[0019] S5. After the printing is completed, the support is installed inside the float, and after the support is installed, the sealing plastic part of the float is hot-melt sealed. Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0020] 1. The 3D printing device of the present invention can cooperate with the blow molding equipment, which solves the problem that the traditional blow molding equipment cannot make supports inside the float when processing the float. The produced float can have higher strength and be more durable. Even if the float surface is damaged, the float will not be easily deflated.

[0021] 2. The present invention can use four print heads to work simultaneously, with high efficiency and fast printing speed. The printing material is selected to be the same as the material of the float. The mounting seat is printed by thickening the inner wall, and the mounting support is prefabricated in advance, which can greatly reduce the time consumed in printing and improve efficiency. At the same time, by printing the mounting seat, the wall thickness of the float at this location can be increased, which can effectively prevent the float from being punctured by the internal support. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 For the present invention Figure 1 Sectional view at AA;

[0025] Figure 3 is a schematic diagram of the blow molding mold in the present invention in an open state;

[0026] Figure 4 is a side view of the present invention;

[0027] Figure 5 is a side view of the printing assembly of the present invention;

[0028] Figure 6 It is a front view of the printing assembly in the present invention;

[0029] Figure 7 For the present invention Figure 6 The enlarged view of point B in the middle;

[0030] Figure 8 For the present invention Figure 7 Sectional view at CC;

[0031] Fig. 9 It is a schematic diagram of the printing component in the present invention when it is unfolded.

[0032] The figures represent: 1-blow mold, 2-guide light axis, 3-strip tube mold, 4-float, 5-connecting plate assembly, 501-first connecting plate, 502-second connecting plate, 6-first moving table, 7-second moving table, 8-third moving table, 9-first motor, 10-third motor, 11-third driving screw, 12-first driving screw, 13-second motor, 14-second driving screw, 15-print head, 16-print head mounting plate, 17-material guide tube, 18-drive motor, 19-print head driving screw, 20-pull rope, 21-guide coil, 22-support block. DETAILED DESCRIPTION

[0033] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0034] Embodiment 1, as Figures 1 to 9 As shown, a 3D printing device for a high-strength reinforced structural floating body comprises a 3D printing device, a blow molding mold 1 and a connecting port assembly, wherein the 3D printing device comprises a printing assembly inside a floating body 4, a moving control assembly outside the floating body 4 and a connecting plate assembly 5 connecting the printing assembly and the moving control assembly, wherein the connecting port assembly comprises a bar tube mold 3, wherein the blow molding mold 1 is provided with a bar tube notch which cooperates with the bar tube mold 3, wherein the blow molding mold 1 is slidably arranged on a guide optical axis 2, wherein the two blow molding molds 1 are opened and closed along the guide optical axis 2, wherein during blow molding, a bar opening is formed on the processed floating body 4 through the cooperation between the bar tube notch on the blow molding mold 1 and the bar tube mold 3, and a flat tube-shaped sealing plastic portion is also processed at the bar opening, wherein the flat tube-shaped plastic sealing portion can facilitate the subsequent sealing of the bar opening on the floating body 4;

[0035] The connecting plate assembly 5 includes a first connecting plate 501 and a second connecting plate 502. The first connecting plate 501 passes through the strip tube mold 3 to reach the interior of the float 4. The first connecting plate 501 is hinged to the second connecting plate 502 at one end inside the float 4. Two second connecting plates 502 are hinged on the first connecting plate 501. A first torsion spring is provided at the hinge position between each of the second connecting plates 502 and the first connecting plate 501. The first torsion spring can make the two second connecting plates 502 approach each other. The first connecting plate 501 is controlled by the mobile control assembly to move in space. The second connecting plate 502 is provided with the printing assembly. The mobile control assembly drives the printing assembly to perform 3D printing operations inside the float 4 through the connecting plate assembly 5.

[0036] In this embodiment, the mobile control component includes a first mobile platform 6, a second mobile platform 7 and a third mobile platform 8, wherein the first connecting plate 501 is fixedly connected to the first mobile platform 6 at one end outside the floating body 4, a first guide shaft is fixed on the second mobile platform 7, the first mobile platform 6 slides on the first guide shaft, the first mobile platform 6 is threadedly connected to the first driving screw 12, the first driving screw 12 is fixed to the motor shaft of the first motor 9, and the relative linear motion between the first mobile platform 6 and the second mobile platform 7 is controlled by the rotation of the first motor 9, a second guide shaft is fixed on the third mobile platform 8, the second mobile platform 7 slides on the second guide shaft, the second mobile platform 7 and the second driving screw 12 are connected to the motor shaft of the first motor 9, and the relative linear motion between the first mobile platform 6 and the second mobile platform 7 is controlled by the rotation of the first motor 9. The lead screw 14 is threadedly connected, and the second driving lead screw 14 is fixed to the motor shaft of the second motor 13. The relative linear motion between the second movable table 7 and the third movable table 8 is controlled by the rotation of the second motor 13. The mutual cooperation between the first movable table 6, the second movable table 7 and the third movable table 8 can drive the printing component to complete the movement in the plane. Furthermore, a plurality of nut seats are fixed on the third movable table 8, each of which is threadedly connected to a third driving lead screw 11, and one end of each third driving lead screw 11 is fixed to the motor shaft of a third motor 10. The third movable table 8 is driven to perform lifting motion through the synchronous rotation of the plurality of third driving lead screws 11, thereby driving the printing component to complete the lifting motion.

[0037] The printing assembly includes a print head 15, a print head mounting plate 16, a material guide tube 17 and a print head 15 driving assembly. The print head mounting plate 16 is hinged to the second connecting plate 502. Two print head mounting plates 16 are hinged to each of the second connecting plates 502. A print head 15 is slidably arranged on each of the print head mounting plates 16. The sliding movement of the print head 15 on the print head mounting plate 16 is controlled by the print head 15 driving assembly. One end of the material guide tube 17 is fixed to the print head 15, and, The interior of the material guide tube 17 is connected to the interior of the print head 15. The materials required for printing by the print head 15 are transported to the print head 15 along the material guide tube 17. The two print head mounting plates 16 on the same second connecting plate 502 can be expanded and closed with each other. When the printing operation is performed, the two print head mounting plates 16 are in an expanded state. In this state, the print head mounting plates 16 and the second connecting plate 502 are perpendicular to each other. When the two print head mounting plates 16 are closed, the two print head mounting plates 16 are parallel to the second connecting plate 502.

[0038] Advantageously, each of the print head mounting plates 16 and the second connecting plate 502 is provided with a second torsion spring at the hinged position, and the second torsion spring can make the two print head mounting plates 16 on the same second connecting plate 502 move closer to each other. In the absence of other external forces, the closing of the two print head mounting plates 16 is achieved by the second torsion spring.

[0039] In this embodiment, the print head 15 driving assembly includes a driving motor 18 and a print head driving screw 19, the two ends of the print head driving screw 19 are rotatably connected to two bearing seats, the two bearing seats are fixed on the print head mounting plate 16, the body of the driving motor 18 is fixed on the print head mounting plate 16, the motor shaft of the driving motor 18 is fixedly connected to one end of the print head driving screw 19, and a connecting block is also fixed on the print head 15, which is threadedly connected to the print head driving screw, and the print head 15 is slidably matched with the print head mounting plate 16.

[0040] It should be noted that the print head mounting plate 16 is in a perpendicular state to the inner wall of one side of the float after being unfolded, and the sliding direction of the print head 15 on the print head mounting plate 16 is also perpendicular to the inner wall of this side. The print head 15 can be driven by the drive motor 18 to move close to or away from the inner wall of this side, thereby printing a mounting seat on the inner wall.

[0041] In this embodiment, when performing a printing operation, not only the two print head mounting plates 16 need to be unfolded, but also the two second connecting plates 502 need to be unfolded. Therefore, a pull rope 20 unfolding mechanism is further provided, and the unfolding of each of the print head mounting plates 16 is controlled by a pull rope 20 unfolding mechanism. The pull rope 20 unfolding mechanism includes a pull rope 20 and a plurality of wire coils 21, one end of each of the pull ropes 20 is fixedly connected to the print head mounting plate 16 controlled by the pull rope 20 unfolding mechanism, and the pull rope 20 passes through at least two of the wire coils 21, one of the two wire coils 21 is fixed on the second connecting plate 502 and the other is fixed on the first connecting plate 501, and the connecting line of the two wire coils 21 is located on the side of the hinge point between the second connecting plate 502 and the first connecting plate 501 close to the unfolding direction of the second connecting plate 502. Under this position arrangement, the second connecting plate 502 can be unfolded only by pulling the pull rope 20.

[0042] Advantageously, two abutment blocks are fixed to each of the second connecting plates 502. The two abutment blocks are arranged on the second connecting plates 502 near the print head mounting plate 16. When the print head mounting plate 16 is unfolded, two mutually perpendicular planes on the abutment blocks contact the second connecting plate 502 and the print head mounting plate 16 respectively. The abutment blocks can better maintain the mutually perpendicular state between the second connecting plate 502 and the print head mounting plate 16, and can prevent the print head mounting plate 16 from being excessively pulled by the pull rope 20 and thus being not perpendicular to the second connecting plate 502.

[0043] Embodiment 2: Based on Embodiment 1, this embodiment further provides a processing method for a high-strength reinforced structure floating body 3D printing device, and the specific steps are as follows:

[0044] S1. Open the two blow molds 1, so that the printing assembly and the connecting plate assembly 5 are both in a closed state, and at the same time, lower the printing assembly to the bottom of the strip tube mold 3.

[0045] S2, making the raw material of the float in a softened state fall down, and when the raw material falls to the required processing length, closing the two blow molds 1, and extracting the air between the blow mold 1 and the raw material, processing the float 4 with a strip opening and a sealed plastic part.

[0046] S3. The printing assembly is sent from the middle of the bar tube mold 3 to the inside of the float 4 by moving the control assembly. When the printing assembly enters the float 4, the printing assembly and the two second connecting plates 502 are unfolded. When unfolding, the pull rope 20 is pulled. The pull rope 20 contracts to overcome the torsion of the first torsion spring and the second torsion spring, so that the two second connecting plates 502 are unfolded to each other. At the same time, the two print head mounting plates 16 on the second connecting plates 502 are unfolded.

[0047] S4. After unfolding the printing assembly and the two second connecting plates 502, the four print heads 15 of the 3D printing equipment are controlled to work simultaneously according to the set program to print the support mounting seats on the inner walls of the float 4 on both sides of the connecting plate assembly 5. The four print heads 15 can work simultaneously during printing, which is efficient and fast. The printing material is selected to be the same as the float 4. The mounting seats are printed by thickening the inner wall. The installation supports are prefabricated in advance, which can greatly reduce the time consumed during printing and improve efficiency. At the same time, the wall thickness of the float 4 at this location can be increased by printing the mounting seats, which can effectively prevent the float 4 from being punctured by the internal support.

[0048] S5. After printing is completed, the support is installed inside the float 4, and after the support is installed, the sealing plastic part of the float 4 is hot-melt sealed. The above-described specific implementations further explain the purpose, technical scheme and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation of the present invention and is not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A 3D printing device for a high-strength reinforced structural floating body, comprising a 3D printing device, a blow molding mold (1) and a connection port assembly, characterized in that: The 3D printing device comprises a printing component, a movement control component and a connecting plate component (5) connecting the printing component and the movement control component; The connection port assembly comprises a strip tube mold (3), and the blow mold (1) is provided with a strip tube notch that cooperates with the strip tube mold (3); The connecting plate assembly (5) comprises a first connecting plate (501) and a second connecting plate (502), wherein the first connecting plate (501) passes through the strip tube mold (3) to reach the interior of the floating body (4), and the first connecting plate (501) is controlled by the movement control assembly to move in space; The first connecting plate (501) is hinged to the second connecting plate (502) at one end inside the floating body (4), two second connecting plates (502) are hinged on the first connecting plate (501), and the printing assembly is provided on the second connecting plate (502).

2. The 3D printing device for a high-strength reinforced structural floating body according to claim 1, characterized in that: A first torsion spring is provided at a hinged position between each of the second connecting plates (502) and the first connecting plate (501), and the first torsion spring can bring the two second connecting plates (502) closer to each other.

3. The 3D printing device for a high-strength reinforced structural floating body according to claim 1, characterized in that: The mobile control assembly comprises a first mobile platform (6), a second mobile platform (7) and a third mobile platform (8), wherein the first connecting plate (501) is fixedly connected to the first mobile platform (6) at one end outside the floating body (4), a first guide shaft is fixed to the second mobile platform (7), the first mobile platform (6) slides on the first guide shaft, the first mobile platform (6) is threadedly connected to a first driving screw (12), the first driving screw (12) is fixed to the motor shaft of the first motor (9), and the third mobile platform (8) is fixed to a second guide shaft. The second movable platform (7) slides on the second guide shaft, the second movable platform (7) is threadedly connected to the second driving screw (14), the second driving screw (14) is fixed to the motor shaft of the second motor (13), a plurality of nut seats are fixed on the third movable platform (8), each of the nut seats is threadedly connected to a third driving screw (11), one end of each of the third driving screws (11) is fixed to the motor shaft of a third motor (10), and the third movable platform (8) is driven to perform lifting movement through the synchronous rotation of the plurality of third driving screws (11).

4. The 3D printing device for a high-strength reinforced structural floating body according to claim 2, characterized in that: The printing assembly comprises a print head (15), a print head mounting plate (16), a material guide tube (17) and a print head (15) driving assembly, wherein the print head mounting plate (16) is hinged to the second connecting plate (502), two print head mounting plates (16) are hinged to each of the second connecting plates (502), and a print head (15) is slidably arranged on each of the print head mounting plates (16), and the sliding movement of the print head (15) on the print head mounting plate (16) is controlled by the print head (15) driving assembly.

5. The 3D printing device for a high-strength reinforced structural floating body according to claim 4, characterized in that: One end of the material guide tube (17) is fixed to the print head (15), and the interior of the material guide tube (17) is connected to the interior of the print head (15).

6. The 3D printing device for a high-strength reinforced structural floating body according to claim 4, characterized in that: A second torsion spring is provided at the hinged position between each of the print head mounting plates (16) and the second connecting plate (502), and the second torsion spring can make the two print head mounting plates (16) on the same second connecting plate (502) move closer to each other.

7. The 3D printing device for a high-strength reinforced structural floating body according to claim 4, characterized in that: The print head (15) driving assembly comprises a driving motor (18) and a print head driving screw (19), the two ends of the print head driving screw (19) are rotatably connected to two bearing seats, the two bearing seats are fixed on the print head mounting plate (16), the body of the driving motor (18) is fixed on the print head mounting plate (16), the motor shaft of the driving motor (18) is fixedly connected to one end of the print head driving screw (19), and a connecting block is also fixed on the print head (15), and the connecting block is threadedly connected to the print head driving screw (19).

8. The 3D printing device for a high-strength reinforced structural floating body according to claim 4, characterized in that: The print head mounting plate (16) is in a vertical state with respect to an inner wall of one side of the float after being unfolded. Two abutment blocks are also fixed on the second connecting plate (502). The two abutment blocks are arranged on the second connecting plate (502) near the print head mounting plate (16). When the print head mounting plate (16) is unfolded, two mutually perpendicular planes on the abutment blocks contact the second connecting plate (502) and the print head mounting plate (16) respectively.

9. The 3D printing device for a high-strength reinforced structural floating body according to claim 4, characterized in that: It also includes a pull rope (20) deployment mechanism, the deployment of each of the print head mounting plates (16) is controlled by a pull rope (20) deployment mechanism, the pull rope (20) deployment mechanism includes a pull rope (20) and a plurality of wire coils (21), one end of each of the pull ropes (20) is fixedly connected to the print head mounting plate (16) controlled by the pull rope (20) deployment mechanism, and the pull rope (20) passes through at least two of the wire coils (21), one of the two wire coils (21) is fixed on the second connecting plate (502) and the other is fixed on the first connecting plate (501), and the connecting line of the two wire coils (21) is located on the side of the hinge point between the second connecting plate (502) and the first connecting plate (501) close to the deployment direction of the second connecting plate (502).

10. A method for processing a high-strength reinforced structure floating body 3D printing device according to claims 1-9, characterized in that: The method comprises the following steps: S1, opening the two blow molding molds (1), making the printing assembly and the connecting plate assembly (5) both in a closed state, and at the same time, making the printing assembly descend to the bottom of the strip tube mold (3); S2, making the raw material of the float in a softened state fall down, and when the raw material falls to the required processing length, closing the two blow molding molds (1), and extracting the air between the blow molding molds (1) and the raw material, processing the float (4) with a strip opening and a sealed plastic part; S3, sending the printing assembly from the middle of the bar tube mold (3) into the interior of the floating body (4) by moving the control assembly, and unfolding the printing assembly and the two second connecting plates (502) after the printing assembly enters the floating body (4); S4, after unfolding the printing assembly and the two second connecting plates (502), the four printing heads (15) of the 3D printing device are controlled to work simultaneously according to a set program to print a support mounting seat on the inner wall of the floating body (4) on both sides of the connecting plate assembly (5), and the four printing heads (15) can work simultaneously during printing; S5. After printing is completed, a support is installed inside the float (4). After the support is installed, the sealing plastic part of the float (4) is hot-melt sealed.

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