An anti-seepage membrane encapsulation device for UV-curable glass fiber tubes

Abstract

This application discloses a geomembrane encapsulation device for UV-curable glass fiber tubes, relating to the field of geomembrane encapsulation equipment. It includes a support steel frame and a tube blank conveyed onto the support steel frame. Two geomembrane unwinding mechanisms, one for mounting the geomembrane roll and the other for installing the geomembrane, are symmetrically arranged on the upper and lower surfaces of the support steel frame. Cold pressure rollers are installed between the inner walls of the support steel frame to initially press the upper and lower geomembranes and the tube blank located between them. An auxiliary component is installed inside the support steel frame to flatten and fix the wrinkles at both ends of the geomembrane. The threaded grooves in this application form a raised structure, which discharges gas between the geomembrane and the tube blank during rolling, improving the encapsulation density, coordinating the flattening of wrinkles and fixing the edges, solving the edge warping problem common in traditional encapsulation, and precisely adjusting the contact state between the roller and the encapsulation plate to achieve different functions at different positions of the geomembrane.

Description

Technical Field

[0001] This invention relates to a plastic connection device, and more specifically to the field of geomembrane encapsulation equipment, and more specifically to a geomembrane encapsulation device for a UV-curable glass fiber tube. Background Technology

[0002] In the manufacturing process of UV-cured fiberglass tubes (such as corrosion-resistant pipes used in municipal water supply and drainage, chemical, and power industries), the encapsulation of the geomembrane (usually a polymer membrane) is a crucial step in ensuring the long-term sealing performance and structural durability of the pipeline. The geomembrane must tightly, wrinkle-free, and bubble-free wrap around the tube blank, and form a barrier layer with the resin during the subsequent UV curing process. Before wrapping the tube blank, the inner membrane needs to be cylindrically fitted over a hollow tube, and fiberglass cloth is wound onto the surface of the inner membrane using a winding mechanism. The tube blank (the inner membrane wrapped with fiberglass) requires geomembrane encapsulation. Currently, the geomembrane encapsulation equipment commonly used in the industry still has the following shortcomings in practical use:

[0003] When sealing and pressing the geomembrane onto the pipe blank, initial pressing and venting are typically achieved using only one or more pairs of pressure rollers. These rollers are mostly smooth, and while they can expel most of the air, their effectiveness is limited for localized gases, especially at the interface between the membrane and the fiberglass composite felt. Residual gases can become weak points during subsequent curing, affecting the impermeability and the overall integrity of the pipe. Furthermore, since the geomembrane directly wraps around the circular pipe blank, excess material at the edges can easily accumulate and wrinkle at the pressing points or fail to adhere properly to the flattened ends of the pipe blank, affecting the final seal. Summary of the Invention

[0004] In order to improve the effect of local gas discharge and solve the problem of wrinkled sealing of the geomembrane at both ends of the tube blank, this application provides a geomembrane encapsulation device for UV-cured glass fiber tubes.

[0005] The anti-seepage membrane encapsulation device for UV-curable glass fiber tubes provided in this application adopts the following technical solution:

[0006] A geomembrane encapsulation device for UV-curable glass fiber tubes includes a device support steel frame and a tube blank conveyed to the device support steel frame. The surface of the device support steel frame is symmetrically equipped with a geomembrane unwinding mechanism one and a geomembrane unwinding mechanism two for mounting geomembrane rolls. The inner walls of the device support steel frame are provided with cold pressure rollers for initially pressing the upper and lower geomembranes and the tube blank located between the two geomembranes. The inside of the device support steel frame is provided with auxiliary components for flattening and fixing the wrinkles at both ends of the geomembrane.

[0007] The auxiliary components include two reciprocating screw roller sets symmetrically arranged and rotatably connected to the inner side of the equipment support steel frame. The surfaces of the reciprocating screw roller sets are symmetrically provided with threaded grooves to form protrusions on the surface of the reciprocating screw roller sets and reduce gas between the geomembrane and the tube blank. An auxiliary column is provided on the outside of the reciprocating screw roller sets for moving outside the geomembrane. The bottom of the auxiliary column is provided with a roller and an auxiliary sealing plate with a central protrusion to prevent edge biting. An auxiliary plate is symmetrically fixedly connected to the inner side of the equipment support steel frame. The surface of the auxiliary plate is symmetrically provided with control components for controlling the contact state between the roller, the auxiliary sealing plate and the geomembrane.

[0008] By adopting the above technical solution, the threaded groove forms a raised structure, which discharges the gas between the geomembrane and the tube blank when rolling, improves the sealing density, and helps to flatten wrinkles and fix the edges, solving the common edge warping problem in traditional packaging. It also precisely adjusts the contact state between the roller and the packaging plate to achieve different functions at different positions of the geomembrane.

[0009] Preferably, the roller has arcuate surfaces at both ends to form a central convex shape.

[0010] By adopting the above technical solution, the raised structure makes the pressure in the middle of the roller greater than that at the edge, avoiding the tearing of the geomembrane due to stress concentration at the edge during pressing. The arc surface fits the curved surface of the tube blank, applying pressure evenly and reducing local wear.

[0011] Preferably, the auxiliary packaging plate has a second arc surface on the side away from the roller that matches the shape of both ends of the tube blank, and the two ends of the second arc surface have inclined surfaces for forming a central convex shape of the auxiliary packaging plate.

[0012] By adopting the above technical solution, the arc surface 2 matches the shape of the tube blank end, ensuring that there are no dead corners in the edge sealing.

[0013] Preferably, the control component includes parallel segment one, parallel segment two, and parallel segment three, which are formed on the surface of the auxiliary plate and are parallel to the auxiliary plate.

[0014] By adopting the above technical solution, a stable pressing state of the roller / packaging board is maintained.

[0015] Preferably, the control component further includes inclined segment one, inclined segment two, and inclined segment three, which are formed on the surface of the auxiliary plate and connect the beginning and end of parallel segment one, parallel segment two, and parallel segment three.

[0016] By adopting the above technical solution, the pressure is adjusted during the transition phase to avoid sudden changes that could cause membrane material displacement.

[0017] Preferably, the surface of the auxiliary column is fixedly connected to a second slider that is slidably connected inside the control component.

[0018] By adopting the above technical solution, when the auxiliary column slides along the path, the roller and the packaging plate switch between contact and separation states according to a preset trajectory, adapting to the needs of different packaging stages.

[0019] Preferably, the interior of each of the two threaded grooves is slidably connected with a reversible nut, and the surface of each of the two nuts is rotatably connected with a first slider that is slidably connected through the auxiliary column. The inner side of the equipment support steel frame is fixedly connected with a guide rail that is slidably connected through the two first sliders.

[0020] By adopting the above technical solution, gear meshing ensures that the upper and lower rollers rotate synchronously in opposite directions, and the geomembrane is subjected to balanced tension.

[0021] Preferably, both ends of the two reciprocating lead screw roller groups are fixedly connected to meshing transmission gears, an electric motor is fixedly connected to the surface of the equipment support steel frame, the output end of the electric motor is fixedly connected to the surface of one of the reciprocating lead screw roller groups, and a hot press roller for hot pressing and fixing the upper and lower geomembranes to the surface of the tube blank is provided inside the equipment support steel frame.

[0022] By adopting the above technical solution, the first slider slides along the guide rail, limiting the radial displacement of the nut and improving the motion accuracy of the auxiliary column.

[0023] Preferably, the surface of the auxiliary column is fixedly connected to a connecting column that penetrates the interior of the drum and is rotatably connected to the drum.

[0024] By adopting the above technical solution, the connecting column allows the roller to rotate freely, reducing frictional damage to the geomembrane.

[0025] Preferably, the surface of the auxiliary column is fixedly connected to a connecting column two that is fixedly connected to the surface of the auxiliary encapsulation plate.

[0026] By adopting the above technical solution, the connecting post 2 ensures stable pushing of the encapsulation board and precise handling of edge wrinkles.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. This invention employs a method where the geomembrane unwinding mechanism one and the geomembrane unwinding mechanism two are respectively wrapped around the upper and lower surfaces of the tube blank. The tube blank is sandwiched between the upper and lower geomembranes and enters between a pair of relatively rotating cold pressure rollers. The upper and lower geomembranes are initially pressed together with the tube blank, expelling most of the entrained air and forming a preliminary wrapped shape to prevent a large amount of air from entering subsequent processes. Subsequently, the tube blank wrapped with geomembrane enters between a reciprocating screw roller group. The raised structure formed by the threaded grooves on the surface of the reciprocating screw roller group can more effectively comb the geomembrane surface during rolling, further squeezing out the gas remaining in the local area after pre-bonding (especially at the interface between the membrane and the fiberglass cloth / tube blank), significantly improving the venting effect. The raised structure increases the local pressure, forcing the upper and lower geomembranes to contact the tube blank surface more closely, improving the adhesion, reducing interface gaps, and the uniform distribution of the threaded grooves ensures that the pressure is transmitted more evenly along the circumference and length of the tube blank.

[0029] 2. The reciprocating screw roller assembly consists of two symmetrically fixed reciprocating screws. The rotation of the reciprocating screw roller assembly drives two auxiliary columns to move closer and further apart. The auxiliary columns drive the rollers and auxiliary sealing plates to move on the surfaces of the upper and lower geomembranes, flattening the excess and wrinkled geomembrane on the surface of the tube blank and both sides. The rollers and auxiliary sealing plates are slightly convex in the middle, so that when they contact the geomembrane, the center contacts first, and the pressure is distributed to both ends. This avoids excessive local stress concentration on the membrane material at the edges of the rollers and auxiliary sealing plates. In the flattening operation (especially when pushing to the edge) and wrapping the edge of the tube blank, the convex design significantly reduces the risk of biting or tearing the edge of the membrane material (biting effect), and helps to smooth out or flatten the air or small wrinkles under the membrane material to both sides.

[0030] 3. By controlling the components, when the second slider enters the parallel section two, the rollers flatten and vent the geomembrane from the center to the edge. When it enters the inclined section two, the two symmetrical rollers move closer together, precisely squeezing the excess geomembrane extending from both sides of the tube blank together, preparing for subsequent wrapping and heat sealing. The auxiliary sealing plate is plate-shaped. As the rollers move in an inclined direction, the auxiliary sealing plate tilts downward to contact the membrane surface and begins to wrap the geomembrane around the arc edge of the tube blank. The arc surface of the auxiliary sealing plate is equipped with heating wires. When wrapping the edge of the tube blank, the built-in heating wires are used to locally heat the geomembrane (below the main solid section). The membrane material is softened and becomes sticky or fused at a certain temperature, fixing it to the edges of both ends of the tube blank. Inside the third parallel section, the roller moves and drives the auxiliary sealing plate to move without contacting the membrane, smoothing out the tiny wrinkles generated in the edge area during the wrapping process, ensuring a smooth and flat edge. The roller and auxiliary sealing plate are raised and detached from the membrane surface in an orderly manner through the third inclined section, avoiding sudden detachment that could cause the membrane surface to spring back or be damaged. When the nut drives the roller back to the center starting point, the second slider is located inside the first parallel section and does not contact the membrane surface, preventing the roller from scraping or pushing the already treated membrane surface in the reverse direction during the return process.

[0031] 4. By installing the bottom of the auxiliary sealing plate at a position higher than the roller or not in contact with the membrane surface, the auxiliary sealing plate does not contact the membrane surface during the movement of the roller from the middle to the edge of the geomembrane. This ensures that the auxiliary sealing plate only makes contact with the edge area that needs to be treated. The two functional stages of "center flattening or venting" and "edge wrapping or fixing" are clearly defined and performed by different components (roller and auxiliary sealing plate) at different positions. Attached Figure Description

[0032] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application;

[0033] Figure 2 This is a three-dimensional side view of the overall structure of this application;

[0034] Figure 3 This is a schematic diagram showing the specific structural location of this application;

[0035] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0036] Figure 5 for Figure 3 Enlarged structural diagram at point B;

[0037] Figure 6 This is a schematic diagram of the auxiliary component structure of this application;

[0038] Figure 7 for Figure 6 Enlarged structural diagram at point C;

[0039] Figure 8 This is a cross-sectional view of the equipment support steel frame of this application;

[0040] Figure 9 for Figure 8 Enlarged structural diagram at point D;

[0041] Figure 10 This is a schematic diagram of the auxiliary packaging board in the hot-press state of this application.

[0042] Reference numerals: 1. Equipment support steel frame; 2. Tube blank; 3. Geomembrane unwinding mechanism one; 4. Geomembrane unwinding mechanism two; 5. Cold pressure roller;

[0043] 6. Auxiliary components; 61. Reciprocating lead screw roller assembly; 611. Threaded groove; 612. Nut; 613. First slider; 614. Guide rail; 615. Transmission gear; 616. Motor; 62. Auxiliary column; 63. Connecting column one;

[0044] 64. Roller; 641. Arc surface one; 65. Auxiliary encapsulation plate; 651. Arc surface two; 652. Inclined surface; 653. Connecting column two; 66. Control component; 661. Parallel section one; 662. Inclined section one; 663. Parallel section two;

[0045] 664. Inclined section two; 665. Parallel section three; 666. Inclined section three; 67. Second slider; 68. Auxiliary plate; 7. Hot press roller. Detailed Implementation

[0046] The following is in conjunction with the appendix Figures 1-10 This application will be described in further detail.

[0047] This application discloses an anti-seepage membrane encapsulation device for ultraviolet-curable glass fiber tubes.

[0048] Reference Figure 1 , Figure 3 as well as Figure 4 This invention relates to a geomembrane encapsulation device belonging to the category of plastic connection equipment. It provides a geomembrane encapsulation device for UV-curable glass fiber tubes, comprising a support steel frame 1 and a tube blank 2 conveyed to the support steel frame 1. The surface of the support steel frame 1 near the tube blank 2 is fixed to the mounting ends of a geomembrane unwinding mechanism 1 3 and a geomembrane unwinding mechanism 2 4. The geomembrane unwinding mechanism 1 3 and the geomembrane unwinding mechanism 2 4 are symmetrically arranged above and below the central platform of the support steel frame 1 on its inner side. The geomembrane unwinding mechanism 1 3 and the geomembrane unwinding mechanism 2 4 are used to install the geomembrane roll and convey the geomembrane. 2.4 Allows independent control of the tension, speed, and position of the upper and lower membranes, ensuring that the two membrane belts can be accurately and independently transported to the confluence point, avoiding mutual interference or pulling, and laying the foundation for subsequent precise wrapping. The inner side of the equipment support steel frame 1 near the tube blank 2 is fixed to the mounting end of the cold pressure roller 5. The cold pressure roller 5 is used to initially press the upper and lower geomembranes and the tube blank 2 located between the two geomembranes. The equipment support steel frame 1 is equipped with an auxiliary component 6, which is used to flatten and fix the wrinkles at both ends of the geomembrane. The equipment support steel frame 1 is equipped with a hot pressure roller 7, which is used to hot-press and fix the upper and lower geomembranes to the surface of the tube blank 2.

[0049] During the fabrication of tube blank 2, the cylindrical inner membrane is first inserted into the hollow long tube, and then fiberglass cloth is wrapped around the surface of the inner membrane by a winding mechanism. At the same time, the inner membrane moves forward synchronously. The geomembrane unwinding mechanism 1 3 and the geomembrane unwinding mechanism 2 4 attach the two geomembranes to the tube blank 2 from top to bottom and feed them together into the space between the two pre-pressure rollers of the cold pressure roller 5. The surface of the pre-pressure roller of the cold pressure roller 5 is smooth, which initially presses the upper and lower membrane strips with the tube blank 2, expelling most of the trapped air and forming a preliminary wrapping shape to prevent a large amount of air from entering subsequent processes. Before entering the space between the cold pressure rollers 5, the two geomembranes pass through guide rollers. The guide rollers precisely guide the path of the membrane strips to ensure that the membrane strips are not twisted. The membrane, curved and without deviation, reaches the pre-bonding point to achieve precise alignment with the tube blank 2, preventing misalignment that could lead to poor wrapping or wasted membrane material. After being hot-pressed by the cold pressure roller 5, the geomembrane and tube blank 2 enter the interior of the auxiliary component 6. The auxiliary component 6 fixes and seals the edges of the geomembrane and tube blank 2. The geomembrane and tube blank 2 then enter the interior of the hot pressure roller 7 for hot-melt pressing and fixing. After pre-bonding, venting, edge pre-fixing, and flattening, the tube blank 2 is in a very stable state. At this point, it enters the hot pressure roller 7 for final hot-press bonding or to prepare for subsequent UV curing, resulting in a more uniform, firm, and defect-free final encapsulation effect. Edge pre-fixing is a key prerequisite for successful main hot pressing.

[0050] Reference Figure 5 , Figure 6The auxiliary component 6 includes two reciprocating screw roller groups 61 symmetrically arranged and rotatably connected to the inner side of the equipment support steel frame 1. Each reciprocating screw roller group 61 consists of two reciprocating screws symmetrically arranged and connected by their central axes. Driving the reciprocating screw roller group 61 to rotate will cause the two reciprocating screws to rotate synchronously. Two threaded grooves 611 are formed on the surface of each reciprocating screw roller group 61, symmetrically arranged on the two reciprocating screws. The threaded grooves 611 create a raised surface on the entire reciprocating screw roller group 61, reducing the gas pressure between the geomembrane and the tube blank 2. The inner walls of the two threaded grooves 611 slide against the bottom end of a nut 612. By maintaining the reciprocating screw roller group 61 in one direction of rotation through the threaded grooves 611, the two nuts 612 can be driven to rotate. The two nuts 612 can change direction inside the threaded groove 611 as they move closer or further apart. The tops of the two nuts 612 are rotatably connected to a first slider 613. The nuts 612 pass through the interior of the first slider 613. The rotation of the nuts 612 is achieved by the rotatable connection. The inner side of the equipment support steel frame 1 and the position on both sides of the two reciprocating screw roller groups 61 are fixed to the two ends of the guide rail 614. The guide rail 614 consists of two cylinders and passes through the interior of the two first sliders 613. The first sliders 613 slide on the surface of the guide rail 614 and the first sliders 613 are translated through the guide rail 614. The interior of the first sliders 613 slides through the surface of the auxiliary column 62. The auxiliary column 62 can slide up and down inside the first sliders 613.

[0051] In operation, the unidirectional rotation of the reciprocating screw roller assembly 61 drives two nuts 612 to slide inside the threaded groove 611. The two nuts 612 move closer to or further away from each other. Initially, the two first sliders 613 are located in the middle of the tube blank 2. When the nuts 612 move, they drive the first sliders 613 to slide on the surface of the guide rail 614. It should be noted that the reciprocating screw is a precision component that achieves mechanical transmission through the threaded groove 611 structure. Its core feature is that when the main shaft rotates in one direction, it drives the nuts 612 to complete axial reciprocating motion. This component consists of two threaded grooves 611 with the same pitch and opposite directions connected by a transition curve to form a closed helical track. The motion conversion is achieved by utilizing the thrust of the helical side on the nuts 612.

[0052] Reference Figure 8 Both ends of the two reciprocating lead screw roller sets 61 are fixed to a transmission gear 615. The reciprocating lead screw roller sets 61 pass through the middle of the transmission gear 615. The transmission gears 615 at the same end of the two reciprocating lead screw roller sets 61 mesh with each other. The equipment support steel frame 1 is fixed to the mounting end of the motor 616 near the outside of the lower reciprocating lead screw roller set 61. The output end of the motor 616 is fixed to one end of the lower reciprocating lead screw roller set 61.

[0053] The reciprocating screw roller group 61 located below is driven to rotate by the electric motor 616. The rotation of the reciprocating screw roller group 61 drives the reciprocating screw roller group 61 located above to rotate through the meshing transmission gear 615, thereby realizing the movement of the first slider 613.

[0054] Reference Figure 2 , Figure 6 , Figure 7 as well as Figure 10 An auxiliary column 62 is provided on the outside of the reciprocating screw roller assembly 61. The auxiliary column 62 moves outside the geomembrane. A roller 64 and an auxiliary sealing plate 65 are provided at the bottom of the auxiliary column 62. The middle part of the roller 64 and the auxiliary sealing plate 65 is convex to prevent the geomembrane from biting. The two ends of the roller 64 are provided with arc surfaces 641. The arc surfaces 641 make the bottom of the roller 64 convex in the middle. The surface of the auxiliary sealing plate 65 is provided with arc surfaces 651. The arc surfaces 651 are located at the end of the auxiliary sealing plate 65 away from the roller 64. Figure 7 As shown, the shape of the second arc surface 651 is adapted to the shape of both ends of the tube blank 2. The two ends of the second arc surface 651 are provided with inclined surfaces 652. The inclined surfaces 652 make the bottom of the auxiliary packaging plate 65 form a central convex shape. The bottom end of the surface of the auxiliary column 62 is fixed to the top end of the connecting column 63. The end of the connecting column 63 away from the auxiliary column 62 passes through the interior of the roller 64. The connecting column 63 and the roller 64 are rotatably connected. Through the rotatable connection, the roller 64 can roll on the surface of the geomembrane, pushing the surface of the geomembrane that is in contact with the tube blank 2 flat. The bottom end of the surface of the auxiliary column 62 is fixed to the top end of the connecting column 653. The bottom of the connecting column 653 is fixed to the upper surface of the auxiliary packaging plate 65. The movement of the connecting column 653 can drive the auxiliary packaging plate 65 to move.

[0055] When the first slider 613 moves, it drives the auxiliary column 62 to move. The movement of the auxiliary column 62, in turn, causes the connecting column 63 to roll on the geomembrane surface. Because the bottom of the auxiliary sealing plate 65 is installed above the roller 64 or in a position that does not contact the membrane surface, the auxiliary sealing plate 65 does not contact the membrane surface as the roller 64 moves from the center of the geomembrane towards the edge. This ensures that the auxiliary sealing plate 65 only makes contact in the edge areas that need treatment. The bulge in the center of the roller 64 means that contact first occurs at the center point (or central area). As the pressure increases or the roller 64 rolls, the contact surface expands from the center outwards. This is like a wave, with pressure gradually transmitted from the center to the edge.

[0056] Reference Figure 8 , Figure 9The inner side of the equipment support steel frame 1 is located above and below the two reciprocating screw roller groups 61 and fixed to the two ends of the two auxiliary plates 68. The two auxiliary plates 68 are symmetrically arranged above and below the tube blank 2. The surface of the auxiliary plates 68 is provided with a control component 66. The control component 66 is used to control the contact state between the roller 64, the auxiliary sealing plate 65 and the geomembrane. The control component 66 includes parallel section one 661, parallel section two 663 and parallel section three 665. Parallel section one 661, parallel section two 663 and parallel section three 665 are opened on the side of the auxiliary plate 68 near the hot press roller 7. Parallel section one 661, parallel section two 663 and parallel section three 665 are all parallel to the position of the auxiliary plate 68, and the opening positions of parallel section one 661, parallel section two 663 and parallel section three 665 are not uniform. Parallel section three 665 is located at both ends of the auxiliary plate 68. Compared with the height of parallel section one 661 and parallel section two 663, parallel section three 665 is located at the lowest point. Position 663 is located between parallel section 1 661 and parallel section 3 665. Initially, the second slider 67 is located inside parallel section 2 663, and the roller 64 is located at the contact point between the geomembrane and the surface of the tube blank 2. When the second slider 67 is located in parallel section 3 665, the roller 64 is located in the excess space on both sides of the geomembrane. When the second slider 67 is located in parallel section 1 661, the roller 64 is located above the geomembrane and does not contact the geomembrane. The control component 66 also includes inclined section 1 662, inclined section 2 664, and inclined section 3 666. Inclined section 1 662, inclined section 2 664, and inclined section 3 666 are all opened on the surface of the auxiliary plate 68. Inclined section 1 662, inclined section 2 664, and inclined section 3 666 respectively connect the beginning and end of parallel section 1 661, parallel section 2 663, and parallel section 3 665. The top surface of the auxiliary column 62 is fixed to one end of the second slider 67, and the other end of the second slider 67 slides inside the control component 66.

[0057] Initially, roller 64 is located in the middle of tube blank 2 and in contact with the geomembrane surface. The auxiliary column 62 drives the second slider 67 to enter the parallel section 663 and roll towards the edge of tube blank 2, achieving flattening and air release from the center to the edge of the geomembrane. When the second slider 67 slides into the inclined section 664, due to the downward inclination of the inclined section 664, the second slider 67 drives the auxiliary column 62 to slide downwards. The two symmetrical rollers 64 move closer to each other, precisely removing excess geomembrane extending from both sides of the tube blank 2. The geomembrane is compressed together, preparing for subsequent wrapping and heat sealing. At this time, the auxiliary column 62, through the connecting column 653, drives the auxiliary sealing plate 65 to slide downwards. Since the auxiliary sealing plate 65 is plate-shaped, as the roller 64 tilts and moves, it drives the auxiliary sealing plate 65 to tilt downwards to contact the membrane surface and begin to wrap the geomembrane around the arc edge of the tube blank 2. The arc surface 651 of the auxiliary sealing plate 65 is equipped with a heating wire. When wrapping the edge of the tube blank 2, the built-in heating wire is used to locally heat the geomembrane (below the main curing temperature), so that the membrane... The material softens and becomes sticky or fused, fixing the membrane to the edges of both ends of the tube blank 2. When the second slider 67 slides inside the parallel section 3 665, the roller 64 moves and drives the auxiliary sealing plate 65 to move when it comes into contact with the excess geomembrane. The auxiliary sealing plate 65 does not come into contact with the membrane. The roller 64 smooths out the tiny wrinkles generated in the edge area during the wrapping process, ensuring that the edges are flat and smooth. Since the inclined section 3 666 is inclined upward, the second slider 67 slides to the inclined section 3 666 so that the roller 64 comes into contact with the auxiliary sealing plate. 65. The roller 64 is lifted and detached from the membrane surface in an orderly manner. When the nut 612 drives the roller 64 back to the center starting point, the second slider 67 is located inside the parallel section 661. The roller 64 moves towards the middle of the tube blank 2 without contacting the membrane surface, thus avoiding the roller 64 scraping or pushing the treated membrane surface in the reverse direction during the return process. When the second slider 67 moves into the inclined section 662, the second slider 67 slides down from the end of the parallel section 661 into the inclined section 662. At this time, the roller 64 is located in the middle of the tube blank 2 and is in contact with the surface of the geomembrane.

[0058] The screw rotation drives the nut 612 to reciprocate, which in turn drives the roller 64 and the auxiliary sealing plate 65 to automatically complete a complex sequence of actions from the center to the edge. This replaces the complex manual or independent mechanism operation. The design of a pair of rollers 64 and auxiliary sealing plates 65 on the top and bottom ensures that the forces on both sides of the tube blank 2 are symmetrical and balanced, preventing the tube blank 2 from twisting or shifting during the edge processing. The roller 64 starts moving from the longitudinal center of the geomembrane, ensuring that the processing starts from the flattest area and moves towards the edge, resulting in a more reliable effect.

[0059] The pressure range of the cold pressure roller 5 is usually set at 200-300 N / cm to ensure the initial tight pressing between the film and the tube blank 2, while ensuring that most of the gas is effectively discharged. The rotation speed of the cold pressure roller 5 should be maintained at 5-10 m / min to prevent excessive friction between the film and the tube blank 2 and to ensure that the air bubbles can be discharged smoothly.

[0060] The temperature of the hot press roller 7 is set between 80-120℃, which can be adjusted according to the different geomembrane materials to ensure that the membrane material can be heated evenly within this temperature range and firmly bonded to the tube blank 2. The pressure of the hot press roller 7 should be controlled between 300-500N / cm. The pressure should be adjusted according to the diameter of the tube blank 2 and the thickness of the geomembrane to ensure that the membrane material is firmly bonded to the surface of the tube blank 2 and to avoid the generation of air bubbles or uneven sealing.

[0061] Among them, the motor 616 and the heating wire are existing technologies, and their structural principles will not be elaborated here. The motor 616 can be a Yaskawa Σ-7 series servo motor. The speed and direction of the motor 616 are precisely controlled by the main control PLC through the frequency converter, driving the lead screw to rotate. The heating wire can be a nickel-chromium alloy heating wire, which has excellent high temperature resistance and stability. The heating wire built into the auxiliary packaging board 65 is connected to the onboard terminal through a high temperature resistant wire, and then connected to the constant temperature control module through a slip ring collector (to avoid the wires getting tangled during movement). The constant temperature module receives the PLC command and supplies power to the heating wire at the preset temperature (usually 80-120℃). The temperature is fed back in real time by the onboard thermocouple to realize closed-loop PID regulation. This can ensure that the film material will not overheat when wrapping the tube blank 2, and also avoid the situation of poor adhesion during the subsequent curing process.

[0062] The implementation principle of the UV-curable glass fiber tube geomembrane encapsulation device in this application embodiment is as follows: the device installs two geomembrane rolls on the geomembrane unwinding mechanism 3 above the wrapping and bonding unit and the geomembrane unwinding mechanism 4 below the wrapping and bonding unit respectively. The two membrane rolls are precisely guided by a series of fixed guide rollers to the position where they will meet the tube blank 2. The inner membrane tube blank 2 wrapped with glass fiber cloth (continuously moving in a straight line) reaches the pre-bonding point. Simultaneously, the upper geomembrane belt is introduced from above, and the lower geomembrane belt is introduced from below. The tube blank 2 is sandwiched between the upper and lower geomembrane belts and enters together between a pair of relatively rotating cold pressure rollers 5. Subsequently, the pressed and wrapped tube blank 2 enters between the reciprocating screw roller group 61. When the reciprocating screw roller group 61 is rolling, it can further discharge the local air inside the pressed and wrapped tube blank 2 and make the pressed and wrapped tube blank 2 more tightly pressed. Each reciprocating screw roller group 61 consists of two symmetrical reciprocating screws with a fixed central axis. By rotating the reciprocating screw roller group 61, the nut 612 moves back and forth. When the nut 612 moves back and forth, it drives the roller 64 and the auxiliary encapsulation plate 65 to move.

[0063] Initially, the rollers 64 are positioned at the longitudinal center of the geomembrane on the surface of the compressed tube blank 2. As the reciprocating screw roller assembly 61 rotates, the four rollers 64, symmetrically arranged on the upper and lower geomembrane surfaces of the tube blank 2, along with the auxiliary sealing plates 65, roll towards the transverse edge of the geomembrane. Initially, the auxiliary sealing plates 65 are higher than the rollers 64, and during rolling, they adhere to the geomembrane surface without directly contacting it. When the rollers 64 move to the point where the geomembrane extends beyond the tube blank 2 at both ends, the rollers 64 slide downwards via the auxiliary columns 62. When the rollers 64, which are symmetrically positioned above and below the two geomembranes, move closer together to squeeze the excess geomembrane on both sides, the rollers 64 move at an angle during the tilting process and move closer to the surface of the geomembrane. The auxiliary sealing plate 65 is plate-shaped and wraps the geomembrane and the edges of the tube blank 2 when it moves closer together at an angle. The arc surface 651 of the auxiliary sealing plate 65 fits against the arc surfaces of the tube blank 2. The heating wire inside the auxiliary sealing plate 65 preheats the geomembrane and fixes the geomembrane at both ends of the tube blank 2 to prevent displacement during transportation. When the second slider 67 moves to the bottom of the inclined section 2 664, it will move into the interior of the parallel section 3 665. When the roller 64 moves horizontally, it will flatten the edge of the folds with the membrane on the surface of the tube blank 2 to avoid the formation of folds. Then the second slider 67 moves into the interior of the inclined section 3 666, so that the roller 64 moves upward at an angle and drives the auxiliary sealing plate 65 to not contact the geomembrane. Then the nut 612 slides to one end of the reciprocating screw and moves in the opposite direction so that the auxiliary sealing plate 65 is located inside the upper parallel section 1 661. At this time, when moving back and forth, the roller 64 does not contact the geomembrane to avoid pushing the geomembrane flat in the opposite direction.

[0064] After the two ends are pre-fixed, the entire assembly is fixed by hot pressing roller 7. It should be noted that the middle of both roller 64 and auxiliary encapsulation plate 65 is slightly raised. This way, when contacting the geomembrane, the center contacts first, and the pressure is dispersed to both ends to avoid stress concentration at the edges. This is because when roller 64 moves to the edge, the convexity design can reduce the edge biting effect of the membrane at the end.

[0065] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for sealing ultraviolet-cured glass fiber tubes with an impermeable membrane, characterized in that: The equipment includes a steel frame (1) and a tube blank (2) that is conveyed to the steel frame (1). The surface of the steel frame (1) is symmetrically provided with a geomembrane unwinding mechanism 1 (3) and a geomembrane unwinding mechanism 2 (4) for installing geomembrane rolls. A cold pressure roller (5) is provided between the inner walls of the steel frame (1) for initially pressing the upper and lower geomembranes and the tube blank (2) located between the two geomembranes. An auxiliary component (6) is provided inside the steel frame (1) for flattening and fixing the wrinkles at both ends of the geomembrane. The auxiliary component (6) includes two reciprocating screw roller groups (61) rotatably connected to the inner side of the equipment support steel frame (1) and symmetrically arranged. The surface of the reciprocating screw roller group (61) is symmetrically provided with threaded grooves (611) for forming a protrusion on the surface of the reciprocating screw roller group (61) and reducing the gas between the geomembrane and the tube blank (2). The outside of the reciprocating screw roller group (61) is provided with an auxiliary column (62) for moving outside the geomembrane. The bottom of the auxiliary column (62) is provided with a roller (64) with a raised center to prevent edge biting and an auxiliary sealing plate (65). The inner side of the equipment support steel frame (1) is symmetrically fixedly connected with an auxiliary plate (68). The surface of the auxiliary plate (68) is symmetrically provided with a control component (66) for controlling the contact state between the roller (64), the auxiliary sealing plate (65) and the geomembrane. The interior of each of the two threaded grooves (611) is slidably connected with a reversible nut (612), and the surfaces of the two nuts (612) are rotatably connected with a first slider (613) that is slidably connected through the auxiliary column (62). The inner side of the equipment support steel frame (1) is fixedly connected with a guide rail (614) that is slidably connected through the two first sliders (613). Both ends of the two reciprocating screw roller groups (61) are fixedly connected with meshing transmission gears (615). The surface of the equipment support steel frame (1) is fixedly connected with an electric motor (616). The output end of the electric motor (616) is fixedly connected to the surface of one of the reciprocating screw roller groups (61). The inside of the equipment support steel frame (1) is provided with a hot press roller (7) for hot pressing and fixing the upper and lower geomembranes to the surface of the tube blank (2).

2. The anti-seepage membrane encapsulation device for UV-curable glass fiber tubes according to claim 1, characterized in that: The roller (64) has arc surfaces (641) at both ends to form a central convex shape.

3. The anti-seepage membrane encapsulation device for UV-curable glass fiber tubes according to claim 2, characterized in that: The auxiliary packaging plate (65) has an arc surface (651) on the side away from the roller (64) that matches the shape of both ends of the tube blank (2). The two ends of the arc surface (651) have inclined surfaces (652) for forming a central convex shape of the auxiliary packaging plate (65).

4. The anti-seepage membrane encapsulation device for UV-curable glass fiber tubes according to claim 1, characterized in that: The control component (66) includes parallel segment one (661), parallel segment two (663) and parallel segment three (665) which are formed on the surface of the auxiliary plate (68) and are parallel to the auxiliary plate (68).

5. The anti-seepage membrane encapsulation device for UV-curable glass fiber tubes according to claim 4, characterized in that: The control component (66) further includes inclined segment one (662), inclined segment two (664) and inclined segment three (666) which are formed on the surface of the auxiliary plate (68) and connect the parallel segment one (661), parallel segment two (663) and parallel segment three (665) end to end.

6. The anti-seepage membrane encapsulation device for UV-curable glass fiber tubes according to claim 5, characterized in that: The surface of the auxiliary column (62) is fixedly connected to a second slider (67) which is slidably connected inside the control component (66).

7. The anti-seepage membrane encapsulation device for UV-curable glass fiber tubes according to claim 1, characterized in that: The auxiliary column (62) has a connecting column (63) that penetrates the inside of the roller (64) and is rotatably connected to the roller (64).

8. The anti-seepage membrane encapsulation device for UV-curable glass fiber tubes according to claim 7, characterized in that: The auxiliary column (62) is fixedly connected to a connecting column two (653) which is fixedly connected to the surface of the auxiliary encapsulation plate (65).

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