High-elasticity anti-aging PVC waterproofing membrane

Abstract

The application discloses a kind of high elasticity ageing-resistant PVC waterproof coiled material, it is related to PVC waterproof coiled material technical field, including PVC waterproof cloth, the PVC waterproof cloth is by upper and lower two layers of PVC matrix and the reinforcing cloth in middle composition, the PVC waterproof cloth presented by the application is by upper and lower two layers of PVC matrix and the reinforcing cloth of middle clamping hot sealing composite, and the side of reinforcing cloth is integrally provided with edge strip.Two layers of PVC matrix as the main waterproof surface layer of coiled material, can form continuous dense waterproof barrier layer, with excellent water resistance, weather resistance and anti-aging ability, undertake coiled material core waterproof function;The reinforcing cloth in middle is clamped between two layers of PVC matrix, as framework reinforcing layer, can significantly improve the tensile strength, tear resistance and dimensional stability of PVC waterproof cloth, improve the defect that pure PVC matrix is easily deformed, insufficient tensile resistance, give coiled material good elasticity, relieve the deformation of coiled material by external force pulling, temperature alternation, improve the overall service reliability of coiled material.

Description

Technical Field

[0001] This invention relates to the field of PVC waterproof membrane technology, specifically a high-elasticity, aging-resistant PVC waterproof membrane. Background Technology

[0002] Polyvinyl chloride (PVC) waterproof membranes, with their excellent water resistance, weather resistance, and aging resistance, are widely used in waterproofing projects such as building roofs and underground utility tunnels. Internally reinforced PVC waterproof membranes typically incorporate a polyester mesh reinforcement fabric sandwiched between two layers of PVC matrix and heat-sealed together. The reinforcing fabric's skeletal reinforcement effectively improves the membrane's tensile strength, tear resistance, and dimensional stability, compensating for the high deformation and thermal shrinkage of pure PVC matrix materials. This achieves the membrane's high elasticity and long service life requirements. A key process in the production of this type of membrane is the smooth, low-stress feeding of the unwound reinforcement fabric between the two layers of molten PVC matrix, ensuring the molten PVC fully impregnates the reinforcement yarns and guarantees the quality of the interlayer heat seal.

[0003] Existing PVC waterproof membrane manufacturing equipment mostly uses ordinary guide rollers to suspend the reinforcing fabric during feeding. The reinforcing fabric is suspended before reaching the extrusion lamination station, and during production, it is subject to machine vibration and hot airflow from the extrusion die, making it prone to defects such as vertical movement, lateral deviation, and wrinkles. When wrinkled or misaligned reinforcing fabric directly enters the heat-sealing lamination station, the molten PVC matrix cannot fully penetrate the gaps in the mesh yarns, easily forming air bubbles and weak lamination defects inside the membrane. This results in large fluctuations in the interlayer peel strength of the finished product and a decrease in product yield. Furthermore, under suspended feeding conditions, the reinforcing fabric is prone to localized overstretching, causing irreversible deformation of the mesh warp and weft yarns. Ultimately, the finished membrane's heat shrinkage performance fails to meet standards, leading to early failures such as membrane warping, overlap seam shrinkage, and cracking during later service stages.

[0004] To address the issue of fabric misalignment and wrinkling during reinforcing fabric conveying, some existing equipment employs a rigid hook-type traction mechanism, relying on needles piercing the reinforcing fabric mesh to complete the fabric traction and conveying. However, the mesh positions of the polyester mesh are randomly distributed, and this type of mechanism cannot adapt to the mesh position. The needles are prone to pressing, scraping, and breaking the warp and weft fibers of the reinforcing fabric, causing invisible micro-damage to the reinforcing fabric. This damages the internal reinforcing skeleton of the roll material, directly deteriorating the tensile and tear mechanical properties of the finished roll material and affecting the actual reliability of the waterproof roll material in use.

[0005] Therefore, there is an urgent need to develop a highly elastic and aging-resistant PVC waterproof membrane and corresponding manufacturing equipment that can achieve stable conveying of the reinforcing fabric and avoid damage to the mesh fibers. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a highly elastic and aging-resistant PVC waterproof membrane, which solves the problems mentioned in the background section.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution: a high-elasticity and aging-resistant PVC waterproof membrane, comprising a PVC waterproof fabric, wherein the PVC waterproof fabric is composed of upper and lower PVC substrates and a middle reinforcing fabric, wherein the reinforcing fabric is heat-sealed between the upper and lower PVC substrates, and edge strips are evenly distributed on both sides of the reinforcing fabric. A high-elasticity, aging-resistant PVC waterproof membrane manufacturing equipment is provided. During the production of the PVC waterproof membrane, a heat sealing machine is required. The heat sealing machine includes a workbench, on which heat sealing components are installed. A traction machine is installed on the workbench via support legs, and an adsorption machine is installed on both the front and rear surfaces of the traction machine. The traction machine includes a front cover and a rear cover. Two conveyor rollers are rotatably mounted between the front cover and the rear cover via bearings. A conveyor belt is sleeved on the outer side of the two conveyor rollers. Several traction components are embedded in the surface of the conveyor belt. Each of the aforementioned traction components includes several main units, which are fixedly connected to each other. Each main unit has a first piston chamber inside, and a storage cavity is formed above the first piston chamber inside the main unit. A first piston block is slidably installed inside the first piston chamber. A push column is fixedly installed on the top of the first piston block. The top of the push column extends into the storage cavity and is fixedly installed on a movable disk. A telescopic column is fixedly installed on the top of each movable disk. The top of each telescopic column extends to the outside of the main unit and is fixedly installed with a round protrusion.

[0008] Preferably, a first spring is sleeved on the outer side of the telescopic column, the bottom end of the first spring is fixedly connected to the top of the movable disk, and the top end of the first spring is fixedly connected to the top of the storage cavity.

[0009] Preferably, the inner wall of the host is provided with a second piston chamber on the side of the movable disk, and a storage cavity is provided at the left end of the second piston chamber. A second piston block is slidably installed inside the second piston chamber. A piston column is fixedly installed at the left end of the second piston block. One end of the piston column extends into the storage cavity and is fixedly installed with a push plate. A pin is fixedly installed at one end of the push plate. A second spring is sleeved on the outside of the piston column. The left end of the second spring is fixedly connected to the right end of the push plate. The right end of the second spring is fixedly connected to the right wall of the inner cavity of the storage cavity.

[0010] Preferably, the outer side of the movable disk is provided with an oblique guide groove, and the inside of the movable disk is provided with a socket at one end of the pin, and one end of the pin is inserted into the socket.

[0011] Preferably, a front drive mechanism is fixedly installed at the front end of the traction assembly, and a rear drive mechanism is fixedly installed at the rear end of the traction assembly. Both the front and rear drive mechanisms include drive cylinders. The two drive cylinders are respectively fixed to the sides of the two main units at the front and rear. Each drive cylinder has a third piston chamber inside, and a moving chamber is formed on the side of each drive cylinder located in the third piston chamber. A reciprocating screw is rotatably mounted inside the moving chamber via a bearing. A moving block is mounted on the outer side of the reciprocating screw, and a piston rod is fixedly installed at one end of each moving block. One end of each piston rod extends into the third piston chamber and is fixedly mounted with a third piston block. The other end of each reciprocating screw extends to the outside of the drive cylinder and is fixedly mounted with a gear. An injection pipe is fixedly mounted inside the first drive cylinder. One end of the injection pipe passes through the main unit and is connected to the bottom interface of the first piston chamber through a branch pipe. An input pipe is fixedly mounted inside the last drive cylinder. One end of the input pipe passes through the main unit and is connected to the second piston chamber through a support head. The support head is located inside the second piston chamber and is located inside the left cavity of the second piston block.

[0012] Preferably, both the front and rear hoods have annular cavities on their inner sides, and the traction assembly and the front drive mechanism are located inside the annular cavities.

[0013] Preferably, a third rack is fixedly installed on the upper part of the inner wall of the annular cavity at the tail end on the rear hood, and a fourth rack is fixedly installed on the inner wall of the annular cavity and the side of the third rack. A first rack is fixedly installed on the upper part of the inner wall of the annular cavity at the head end on the front hood, and a second rack is fixedly installed on the inner wall of the annular cavity and the side of the first rack. The first rack, the second rack, the third rack, and the fourth rack all cooperate with gears.

[0014] Preferably, a drive cover is fixedly installed on the side of the front cover, and a first motor is fixedly installed on the inner side below the drive cover. The output end of the first motor and one end of the conveying roller both extend into the interior of the drive cover, and a sprocket connected by a chain drive is fixedly sleeved on the outer side of the output end of the first motor and one end of the conveying roller.

[0015] Preferably, the adsorption machine includes a frame, with support legs fixedly installed below the drive cover and the rear cover. A frame is fixedly installed at the top of each support leg on the outer side of the drive cover and the rear cover. A rotating roller is rotatably mounted between the inner wall of one frame and the outer side of the drive cover, and between the outer side of the rear cover and the inner wall of another frame, via bearings. A mesh belt is fitted between each of the two rotating rollers. A suction box is fixedly installed on the inner wall of the frame between the two rotating rollers. A pump is fixedly installed at the bottom of the suction box, with the suction end of the pump extending into the interior of the suction box. Several suction holes are opened on the surface of the suction box. A second motor is fixedly installed on the side of the frame, and the output end of each second motor is connected to one end of a rotating roller.

[0016] Preferably, a limiting mechanism is fixedly installed on the top of the workbench. The limiting mechanism includes a fixed frame, which is fixedly installed on the top of the workbench above the traction machine. An electric telescopic rod is fixedly installed below the fixed frame, and a pressure plate is fixedly installed at the telescopic end of the electric telescopic rod. The heat sealing assembly includes a heat sealing roller machine, which is mounted on the left side of the workbench. A lower extruder is fixedly installed on the top of the workbench, and an upper extruder is fixedly installed on the side of the heat sealing roller machine. A feeding machine is fixedly installed on the top of the workbench behind the traction machine, and a material roller is loaded on the feeding machine. The PVC waterproof cloth released from the material roller passes between the limiting mechanism and the traction machine, and is then fed between the upper and lower extruders, where it is pressed by the heat sealing roller machine.

[0017] After the reinforcing fabric is completely freed from the constraints of the traction components and the adsorption machine, it continues to be conveyed forward under the overall traction force of the production line and fed into the discharge gap between the upper and lower extruders. The upper extruder extrudes the molten upper layer of PVC matrix, and the lower extruder extrudes the molten lower layer of PVC matrix. The two molten PVC matrix layers are respectively bonded to the upper and lower surfaces of the reinforcing fabric, so that the reinforcing fabric is sandwiched between the two PVC matrix layers. Subsequently, the three-layer composite preform continues to be fed into the roller gap of the heat-sealing press roller machine. The heat-sealing press roller machine applies a set pressure to the composite preform, and the molten PVC matrix fully impregnates and penetrates into the yarn gaps of the reinforcing fabric under the pressure, realizing the heat-sealing and fusion bonding of the PVC matrix and the reinforcing fabric to form an integrated PVC waterproof fabric.

[0018] In this device, the pneumatic driving force of the first piston chamber, the restoring force of the first spring, and the locking force of the second spring work together in stages to complete the entire action. The three forces each perform their own functions and do not conflict with each other.

[0019] When the gear meshes with the first rack, the front drive mechanism presses gas into the bottom of the first piston chamber. The gas pressure pushes the first piston block upward. This upward driving force is greater than the pre-compression force of the first spring, overcoming the spring force and driving the push column, moving disk, telescopic column, and round protrusion to move upward. During this stage, the first spring is further compressed, storing the reset elastic potential energy.

[0020] 1. If the round protrusion successfully passes through the reinforcing mesh hole, the moving disk moves upward to the locking position; the inclined surface of the guide groove on the outer side of the moving disk contacts the pin, pushing the pin to retract towards the storage cavity and compressing the second spring; when the insertion hole and the pin are aligned, the second spring releases its storage force, pushing the push plate so that the pin inserts into the insertion hole to complete the mechanical locking. After locking is completed, the pin forms a mechanical limit constraint on the moving disk. At this time, regardless of whether the pressure inside the first piston chamber is subsequently released, the upward position of the moving disk is maintained by the mechanical locking force of the pin, no longer relying on the air pressure of the first piston chamber for support. The return force of the first spring is canceled out by the locking force of the pin, and cannot drive the moving disk to fall downward.

[0021] 2. If the round protrusion is directly opposite the reinforcing fabric and cannot be inserted into the hole, the protrusion will be blocked by the fabric, preventing the moving disc from moving upward to the locking position. The insertion hole and pin will remain misaligned, preventing the pin from entering the insertion hole and thus preventing locking. The subsequent gear meshes with the second rack, drawing back the gas inside the first piston chamber, and the upward air pressure driving force disappears. At this point, only the reset force stored in the first spring takes effect, directly driving the moving disc, telescopic column, and round protrusion to retract downward, with the round protrusion retracting into the storage cavity.

[0022] At the unlocking station, the gear meshes with the third rack, and the rear drive mechanism presses gas into the left chamber of the second piston block in the second piston chamber. The air pressure pushes the second piston block, piston column, and push plate to overcome the elastic force of the second spring, causing the pin to be pulled out from the insertion hole and releasing the mechanical locking constraint. After the locking constraint is removed, the reset elastic force of the first spring is no longer canceled, driving the entire set of moving disk assembly to fall downwards and complete the storage of the round protrusion.

[0023] As the gear continues to mesh with the fourth rack, the gas in the left chamber of the second piston chamber is drawn back, the pneumatic driving force disappears, the second spring releases its elastic force to push the push plate and the pin to reset, returning to the initial position to be locked, and entering the next working cycle.

[0024] The air pressure is only responsible for providing the driving force for the piston to lift upwards and the driving force for pulling out the pin when unlocking; the first spring is responsible for the reset and retraction of the protrusion in the unlocked state; the second spring is responsible for providing the insertion spring force for the pin to lock; the locked state is maintained by the mechanical engagement of the pin, which is not dependent on the air pressure and is not affected by the reset force of the first spring. Each force is used for different process stages to realize the complete cycle of the protrusion extending, locking, retracting and unlocking.

[0025] This invention provides a highly elastic and aging-resistant PVC waterproof membrane, which has the following beneficial effects: 1. The PVC waterproof fabric proposed in this invention is composed of two layers of PVC matrix and a reinforcing fabric sandwiched in the middle, heat-sealed together. The reinforcing fabric has integrally formed edge strips on both sides. The two PVC matrix layers serve as the main waterproof surface layer of the roll material, forming a continuous and dense waterproof barrier layer with excellent water resistance, weather resistance, and aging resistance, undertaking the core waterproof function of the roll material. The reinforcing fabric sandwiched between the two PVC matrix layers acts as a skeleton reinforcement layer, significantly improving the tensile strength, tear resistance, and dimensional stability of the PVC waterproof fabric. It overcomes the defects of pure PVC matrix, such as easy deformation and insufficient tensile strength, giving the roll material good elasticity, mitigating deformation caused by external force pulling and temperature changes, and improving the overall service reliability of the roll material.

[0026] 2. This invention employs a composite conveying method that combines point-like traction of the central traction component with negative pressure traction of the side suction machines. The multiple round protrusions in the central section effectively suppress the vertical movement and shaking of the reinforcing fabric during feeding. The side suction machines use negative pressure to absorb the dense side strips of the reinforcing fabric, achieving lateral flattening and correction of the fabric. This effectively improves the defects of wrinkles, deviation, and fabric surface offset that are common during the conveying of the reinforcing fabric. It allows the reinforcing fabric to be stably conveyed to the composite station of the upper and lower extruders in a flat and low-stress state. This facilitates the full impregnation of the reinforcing fabric yarn gaps by the molten PVC matrix, improves the heat-sealing peel strength between the reinforcing fabric and the PVC matrix, reduces the probability of defects such as air bubbles and poor bonding inside the roll material, and improves the product qualification rate.

[0027] 3. This invention, by setting up a traction component, utilizes gears meshing with a fixed rack on the inner side of the frame to drive a reciprocating screw to move the third piston block, thereby achieving the compression and extraction of gas inside the first piston chamber, and driving the round protrusion to complete the extension and retraction actions. When the round protrusion successfully penetrates the hole in the reinforcing fabric, the inclined guide groove on the moving disk drives the pin to avoid it. After the insertion hole and the pin are aligned, the pin is inserted into the insertion hole under the drive of the second spring to lock it, so that the round protrusion can remain in the extended state, forming a stable point-like support and traction for the reinforcing fabric. When the round protrusion is directly opposite the reinforcing fabric rib and cannot penetrate the hole, the moving disk cannot reach the locking position, and the pin cannot complete the locking. After the gas inside the first piston chamber is extracted, the unlocked round protrusion automatically retracts under the action of the first spring. This structure requires no additional electrical detection components such as sensors and controllers. It relies entirely on mechanical-pneumatic linkage to achieve adaptive judgment of mesh alignment, making it suitable for the harsh production environment of PVC extrusion stations with high temperatures and oil fume interference. It can adaptively adjust the position of the reinforcing mesh, avoiding the hard pressing, scraping, and crushing of the reinforcing fibers by the round protrusions, protecting the mechanical structure of the reinforcing fabric from damage, effectively reducing local stress concentration during the reinforcing fabric transportation process, and preventing hidden micro-damage to the mesh yarns. It ensures the tensile and tear mechanical properties of the finished PVC waterproof membrane, avoiding the problem of early membrane failure caused by partial damage to the reinforcing structure from the source.

[0028] 4. The lifting, locking, depressurization retraction, and unlocking reset actions of the entire traction assembly of this invention are achieved by the meshing transmission of gears and fixed racks to realize sequential drive. There is no need to configure external dynamic sliding air circuits or electronic sensors such as photoelectric and pressure sensors. All logical actions are completed by mechanical transmission. It can adapt to the harsh working conditions of high temperature and oil fume volatilization in PVC extrusion composite stations, avoid the failure risks of electronic components being easily contaminated by high temperature and oil fume, and the failure risks of dynamic sliding seals being easily worn and leaking air. The mechanism has high operational reliability, is convenient for continuous industrial production, and reduces equipment operation and maintenance costs.

[0029] 5. The present invention is equipped with a third and fourth rack at the rear station. Before the reinforcing fabric is fed into the heat-sealing composite position, the pin is driven by the rear drive mechanism to pull out of the insertion hole, thereby completing the centralized unlocking of the round protrusion. The round protrusion is retracted and stored inside the main unit, realizing the smooth separation of the round protrusion from the reinforcing fabric. This not only enables the continuous traction and conveying of the front section, but also avoids the protrusion from intervening in the molten composite area, preventing metal and plastic parts from mixing into the roll material and forming impurities and defects, thus ensuring the normal operation of the heat-sealing composite process.

[0030] 6. The present invention is equipped with a limiting mechanism. The pressure plate can limit the upper part of the reinforcing fabric, restrict the reinforcing fabric from arching and deforming upwards, ensure the effectiveness of the judgment of the lifting stroke of the round protrusion, reduce the locking misjudgment caused by the elastic deformation of the fabric, and improve the stability of the traction component. At the same time, the edge strip, as the clamping part of the negative pressure adsorption, does not occupy the effective force grid area of ​​the reinforcing fabric and will not have an adverse effect on the performance of the middle reinforcing layer of the roll material.

[0031] 7. The reinforcing fabric of this invention exhibits uniform overall tension during transportation, without any localized excessive stretching. This results in a uniform internal stress distribution in the composite-molded PVC waterproof membrane, ensuring that the finished membrane's heat shrinkage performance meets usage requirements. It effectively inhibits membrane shrinkage and warping, as well as overlap seam shrinkage and cracking during later use. The reinforcing effect of the reinforcing fabric is fully preserved, resulting in a PVC waterproof membrane with good elasticity and excellent aging resistance, thus extending the service life of the waterproof membrane. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of the PVC waterproof fabric of the present invention; Figure 2 This is a schematic diagram of the heat sealing machine of the present invention; Figure 3 This is a schematic diagram of the traction machine and adsorption machine from the right side of the present invention; Figure 4 This is a schematic cross-sectional view of the main unit of the present invention; Figure 5 This is a schematic diagram of the internal structure of the front drive mechanism of the present invention; Figure 6 This is a schematic diagram of the internal structure of the rear drive mechanism of the present invention; Figure 7 This is a schematic diagram of the rear view structure of the front hood of the present invention; Figure 8 This is a schematic diagram of the main structure of the rear hood of the present invention; Figure 9 This is a schematic diagram of the traction machine of the present invention; Figure 10 This is a schematic diagram of the mobile disk portion of the present invention; Figure 11 This is a schematic diagram of the adsorption machine of the present invention; Figure 12 This is a schematic diagram of the suction box structure of the present invention; Figure 13 For the present invention Figure 4 Enlarged view of point A.

[0033] In the diagram: 1. PVC waterproof fabric; 101. PVC substrate; 102. Reinforcing fabric; 103. Edge strip; 2. Workbench; 3. Heat sealing assembly; 301. Heat sealing roller machine; 302. Feeder; 303. Upper extruder; 304. Lower extruder; 4. Support legs; 5. Traction machine; 501. Front cover; 502. Drive cover; 503. Rear cover; 504. Conveyor roller; 505. Conveyor belt; 506. Sprocket; 507. First motor; 508. First rack; 509. Second rack; 510. Third rack; 511. Fourth rack; 512. Annular cavity; 6. Traction assembly; 601. Main unit; 602. Storage cavity; 603. First piston cavity; 604. First piston block; 605. Push column; 606. Moving disk; 607. First spring; 608. Telescopic column; 609. Round protrusion; 610. Injection pipe; 612. Storage cavity; 613. Second piston cavity; 614. Second piston block; 615. Piston column; 616. Second spring; 617. Push disk; 618. Pin; 620. Input pipe; 621. Angled guide groove; 622. Insertion hole; 7. Front drive mechanism; 701. Drive cylinder; 702. Third piston chamber; 703. Third piston block; 704. Moving chamber; 705. Reciprocating screw; 706. Gear; 707. Piston rod; 708. Moving block; 8. Rear drive mechanism; 9. Adsorption machine; 901. Frame; 902. Rotary roller; 903. Mesh belt; 904. Suction box; 905. Pump; 906. Suction hole; 907. Second motor; 10. Limiting mechanism; 1001. Fixing frame; 1002. Electric telescopic rod; 1003. Pressure plate. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0035] Please see Figures 1 to 13 The present invention provides a technical solution: a high elasticity and aging-resistant PVC waterproof membrane, comprising a PVC waterproof fabric 1; the PVC waterproof fabric 1 is composed of two upper and lower PVC substrates 101 and a middle reinforcing fabric 102; the reinforcing fabric 102 is heat-sealed between the upper and lower PVC substrates 101; and edge strips 103 are evenly distributed on both sides of the reinforcing fabric 102.

[0036] A high-elasticity, aging-resistant PVC waterproof membrane manufacturing equipment is provided. The PVC waterproof membrane 1 is produced using a heat sealing machine, which includes a workbench 2; heat sealing components 3 are installed on the workbench 2; a traction machine 5 is installed on the workbench 2 via support legs 4; and adsorption machines 9 are installed on both the front and rear surfaces of the traction machine 5.

[0037] The traction machine 5 includes a front cover 501 and a rear cover 503; two conveyor rollers 504 are rotatably mounted between the front cover 501 and the rear cover 503 via bearings; a conveyor belt 505 is sleeved on the outside of the two conveyor rollers 504; several traction components 6 are embedded in the surface of the conveyor belt 505.

[0038] Each traction assembly 6 includes several main units 601, which are fixedly connected to each other. A first piston chamber 603 is opened inside the main unit 601. A storage chamber 602 is opened inside the main unit 601 and above the first piston chamber 603. A first piston block 604 is slidably assembled inside the first piston chamber 603. A push column 605 is fixedly installed on the top of the first piston block 604. The top of the push column 605 extends into the storage chamber 602 and is fixedly connected to a moving disk 606. A telescopic column 608 is fixedly installed on the top of the moving disk 606. The top of the telescopic column 608 extends to the outside of the main unit 601 and is fixedly installed with a round protrusion 609.

[0039] A second piston chamber 613 is formed on the inner wall of the main unit 601, located on the side of the movable disk 606; a storage cavity 612 is formed on the inner wall of the main unit 601, located at the left end of the second piston chamber 613; a second piston block 614 is slidably assembled inside the second piston chamber 613; a piston column 615 is fixedly connected to the left end of the second piston block 614; one end of the piston column 615 extends into the storage cavity 612 and is fixedly connected to the push plate 617; a pin 618 is fixedly installed at one end of the push plate 617; a second spring 616 is sleeved on the outside of the piston column 615; the left end of the second spring 616 is fixedly connected to the right end of the push plate 617, and the right end of the second spring 616 is fixedly connected to the right wall of the inner cavity of the storage cavity 612.

[0040] An oblique guide groove 621 is provided on the outer side of the movable disk 606; a socket 622 is provided inside the movable disk 606 at one end of the corresponding pin 618; one end of the pin 618 can be inserted into the socket 622 to achieve a locking engagement.

[0041] A front drive mechanism 7 is fixedly installed at the front end of the traction assembly 6, and a rear drive mechanism 8 is fixedly installed at the rear end of the traction assembly 6. Both the front drive mechanism 7 and the rear drive mechanism 8 include a drive cylinder 701. The drive cylinder 701 is fixed to the side of the two main units 601 at the front and rear. A third piston chamber 702 is opened inside the drive cylinder 701. A moving chamber 704 is opened inside the drive cylinder 701 and on the side of the third piston chamber 702. A reciprocating screw 705 is rotatably assembled inside the moving chamber 704 through a bearing. A moving block 708 is assembled on the outside of the reciprocating screw 705. One end of the moving block 708 is fixedly connected to a piston rod 707. One end of the piston rod 707 extends into the third piston chamber 702 and is fixedly installed with a third piston block 703. The other end of the reciprocating screw 705 extends to the outside of the drive cylinder 701 and is fixedly assembled with a gear 706.

[0042] An injection pipe 610 is fixedly installed inside the first drive cylinder 701; the injection pipe 610 penetrates into the main unit 601 and is connected to the bottom of the first piston chamber 603 through a branch pipe; an input pipe 620 is fixedly installed inside the last drive cylinder 701; the input pipe 620 penetrates into the main unit 601 and is connected to the second piston chamber 613 through a support head, which is located inside the second piston chamber 613 and on the left side of the second piston block 614.

[0043] Both the front hood 501 and the rear hood 503 have annular cavities 512 on their inner sides; the traction assembly 6 and the front drive mechanism 7 are integrally arranged inside the annular cavity 512; the inner wall of the annular cavity 512 is fixedly provided with a first rack 508, a second rack 509, a third rack 510, and a fourth rack 511; the gear 706 can respectively form a meshing transmission cooperation with the first rack 508, the second rack 509, the third rack 510, and the fourth rack 511.

[0044] Example 1 A first spring 607 is sleeved on the outside of the telescopic column 608; the bottom end of the first spring 607 is fixedly connected to the top of the movable disk 606; the top end of the first spring 607 is fixedly connected to the top of the inner cavity of the storage cavity 602.

[0045] Under normal conditions, the first spring 607 applies an upward reset preload force to the movable disk 606; when the first piston chamber 603 is depressurized and the pin 618 is not locked, the first spring 607 drives the movable disk 606, push column 605, telescopic column 608, and round protrusion 609 to automatically retract downward, so that the round protrusion 609 is stored inside the storage cavity 602.

[0046] It provides a reliable reset driving force for the unlocked round protrusion 609, ensuring that the protrusion that fails to align can retract in time to avoid the reinforcing cloth 102, reducing the risk of scratching the mesh wires; improving the reliability of the mechanism's action response and reducing jamming failures.

[0047] Example 2 A drive cover 502 is fixedly installed on the side of the front cover 501; a first motor 507 is fixedly installed on the inner side below the drive cover 502; the output end of the first motor 507 and one end of the conveyor roller 504 both extend into the interior of the drive cover 502; sprockets 506 are fixedly sleeved on the outer side of the output end of the first motor 507 and one end of the conveyor roller 504; the two sets of sprockets 506 are connected by a chain drive.

[0048] The first motor 507 drives the conveyor roller 504 to rotate via the sprocket 506 and chain belt. The conveyor roller 504 drives the conveyor belt 505 and all the traction components 6 on it to perform continuous cyclic rotation, providing cyclical travel power for the entire traction component 6, so that the gear 706 sequentially meshes with each rack inside the annular cavity 512.

[0049] The traction component 6 achieves continuous cyclical movement, ensuring continuous production of the equipment.

[0050] Example 3 The adsorption machine 9 includes a frame 901; the frame 901 is fixed to the outside of the drive cover 502 and the rear cover 503 by support feet 4; a rotating roller 902 is mounted between the two frames 901 on the bearings; a mesh belt 903 is sleeved between the two rollers 902; a suction box 904 is fixedly installed on the inner wall of the frame 901 and between the two rollers 902; a pump 905 is fixedly installed at the bottom of the suction box 904; the suction end of the pump 905 is connected to the inside of the suction box 904; several suction holes 906 are opened on the surface of the suction box 904; a second motor 907 is fixed to the side of the frame 901; the output end of the second motor 907 is connected to one end of the roller 902 for transmission.

[0051] The second motor 907 drives the rotating roller 902 to drive the mesh belt 903 to operate synchronously; the pump 905 draws negative pressure on the suction box 904, and the negative pressure acts on the surface of the mesh belt 903 through the suction hole 906, forming a negative pressure adsorption on the edge strips 103 laid on the mesh belt 903, which are then transported synchronously with the mesh belt 903.

[0052] The reinforcing fabric 102 is conveyed by negative pressure clamping on both sides of the side strips 103 to achieve lateral flattening and correction; in conjunction with the central traction component 6, a composite conveying mode of "central point support + side adsorption" is formed to suppress the reinforcing fabric 102 from running off track and wrinkling, and to improve the flatness of the fabric surface.

[0053] Example 4 A limiting mechanism 10 is fixedly installed on the top of the workbench 2; the limiting mechanism 10 includes a fixing frame 1001; the fixing frame 1001 is fixedly installed on the top of the workbench 2, above the traction machine 5; an electric telescopic rod 1002 is fixedly installed below the fixing frame 1001; the telescopic end of the electric telescopic rod 1002 is fixedly connected to a pressure plate 1003; the pressure plate 1003 is arranged on the upper side of the reinforcing fabric 102.

[0054] The electric telescopic rod 1002 drives the pressure plate 1003 downward. The pressure plate 1003 forms a limiting constraint on the upper side of the reinforcing fabric 102, restricting the reinforcing fabric 102 from arching and deforming upward, and ensuring that the lifting stroke of the round protrusion 609 is not affected by the large deformation of the fabric.

[0055] The maximum upward deformation displacement of the fabric is constrained, reducing locking misjudgments caused by the elastic bulging of the reinforcing fabric 102; the accuracy of the locking and retraction actions of the traction component 6 is improved, reducing the probability of malfunction of the mechanism.

[0056] Example 5 The heat-sealing assembly 3 includes a heat-sealing roller press 301, a feeding machine 302, an upper extruder 303, and a lower extruder 304. The heat-sealing roller press 301 is mounted on the left side of the workbench 2. The upper extruder 303 is fixed to the side of the heat-sealing roller press 301. The lower extruder 304 is fixed to the top of the workbench 2. The feeding machine 302 is arranged on the top of the workbench 2 and behind the traction machine 5. The feeding machine 302 is loaded with a reinforcing fabric 102 material roller. The reinforcing fabric 102 passes between the limiting mechanism 10 and the traction machine 5 in sequence, is fed into the outlet between the upper extruder 303 and the lower extruder 304, and then sent into the heat-sealing roller press 301 for hot-pressing composite molding to obtain PVC waterproof fabric 1.

[0057] The upper extruder 303 and the lower extruder 304 respectively extrude molten PVC matrix 101. The reinforcing fabric 102 is flattened and fed between the two layers of molten PVC matrix 101. The heat-sealing roller machine 301 applies pressure to make the PVC matrix 101 melt and impregnate the gaps in the yarn of the reinforcing fabric 102, and heat-seal them together.

[0058] It forms a complete production chain with the traction-adsorption conveying mechanism; the flat reinforcing fabric 102 and the PVC matrix 101 are fully heat-sealed to improve the interlayer bonding strength and reduce defects such as bubbles and false composites.

[0059] First motor 507, second motor 907: variable frequency geared motor, model RV-0.75-40; Pump 905: Vortex negative pressure fan, model RB-41D-1; Electric telescopic rod 1002: DC electric push rod, model DTZ-50-200; First spring 607, second spring 616: High-temperature resistant stainless steel springs, material 316H; Reciprocating Screw 705: T-type reciprocating screw, Tr12; Piston seals: Fluororubber sealing rings, temperature resistant from -20 to 180℃, suitable for high-temperature extrusion radiation.

[0060] Reinforcing fabric 102: Polyester mesh reinforcing fabric; the edge strip 103 is woven into the reinforcing fabric 102, with an edge strip weight of 220g / ㎡ and a dense weave without mesh holes.

[0061] During use, the PVC waterproof cloth 1 on the material roller is inserted between the upper extruder 303 and the lower extruder 304, the reinforcing cloth 102 is located on the surface of the conveyor belt 505, and the side strip 103 is located on the surface of the mesh belt 903. The pressure plate 1003 is moved by the telescopic end of the electric telescopic rod 1002 to limit the upper part of the PVC waterproof cloth 1; The output of the first motor 507, through two sprockets 506 and a chain belt, causes the conveyor roller 504 to rotate, which in turn drives the conveyor belt 505 to move. This causes the traction assembly 6 to move to below the feeding inlet of the PVC waterproof cloth 1. The first rack 508 drives the front drive mechanism 7 to work. At this time, the first rack 508 drives the gear 706 to rotate, which in turn drives the reciprocating screw 705 to rotate. The reciprocating screw 705 drives the moving block 708 and the piston rod 707 to move, which in turn drives the third piston block 703 to move. This causes the gas inside the third piston chamber 702 to enter the first piston chamber 603 through the injection pipe 610. This causes the first piston block 604 to push the push column 605, the moving disc 606, the telescopic column 608, and the round protrusion 609 to move upward, so that the round protrusion 609 passes into the hole of the reinforcing cloth 102. After the round protrusion 609 can pass through the hole in the reinforcing cloth 102, the moving disk 606 moves upward and pushes the pin 618 into the storage cavity 612 through the inclined surface of the inclined guide groove 621. When the insertion hole 622 moves to the side of the pin 618, the second spring 616 pushes the pusher 617 and the pin 618 to move, so that one end of the pin 618 is inserted into the insertion hole 622 and locked. When the round protrusion 609 cannot be inserted into the hole of the reinforcing fabric 102, one end of the pin 618 cannot be inserted into the socket 622 to lock it in place. As the conveyor belt 505 continues to move, the second rack 509 drives the front drive mechanism 7 to continue working. At this time, the first rack 508 drives the gear 706 to rotate, which in turn drives the reciprocating screw 705 to rotate. This causes the reciprocating screw 705 to drive the moving block 708 and the piston rod 707 to reset and move. This causes the piston rod 707 to drive the third piston block 703 to reset and move. This causes the gas inside the first piston chamber 603 to be drawn into the third piston chamber 702 through the injection pipe 610. At this time, the telescopic column 608 pushes the moving disk 606, the push column 605, the first piston block 604, the telescopic column 608, and the round protrusion 609 to move down. The unlocked round protrusion 609 moves down, while the locked round protrusion 609 cannot move down. During the process of conveyor belt 505 transporting reinforcing fabric 102, the output end of the second motor 907 drives a rotating roller 902 to rotate, so that this rotating roller 902 drives another rotating roller 902 to rotate through the mesh belt 903, and the pump 905 draws out the air inside the suction box 904 and discharges it to the outside, so that suction force is generated in the suction hole 906, thereby pulling the edge strip 103 to move through the mesh belt 903; Before the reinforcing fabric 102 moves to the feed inlet of the upper extruder 303 and the lower extruder 304, the third rack 510 first drives the rear drive mechanism 8 to work. At this time, the third rack 510 drives the gear 706 to rotate, which in turn drives the reciprocating screw 705 to rotate. The reciprocating screw 705 drives the moving block 708 and the piston rod 707 to move. The piston rod 707 then drives the third piston block 703 to move, allowing the gas inside the third piston chamber 702 to enter the second piston chamber 613 through the input pipe 620. The gas is positioned to the left of the second piston block 614, thereby pushing the second piston block 614 to move the piston rod 615, the push plate 617, and the pin 618 back to their original positions. This causes one end of the pin 618 to move out of the insertion hole 622, unlocking the device. At this time, the telescopic rod 608 pushes the moving plate 606 and the push rod 605 to move down, causing the push rod 605 to push the first piston block 604 down. When the fourth rack 511 drives the gear 706 to rotate The gear 706 drives the reciprocating screw 705 to reset and rotate, which in turn drives the moving block 708 and piston rod 707 to reset and move. The piston rod 707 then drives the third piston block 703 to reset and move. This causes the gas inside the second piston chamber 613 located to the left of the second piston block 614 to be drawn into the third piston chamber 702 through the input pipe 620. The second spring 616 then pushes the push plate 617 and the pin 618 to reset and move. The push plate 617 then drives the piston rod 615 and the second piston block 614 to reset and move. This releases the traction effect of the round protrusion 609 on the reinforcing fabric 102, and the edge strip 103 also leaves the suction box 904 area, so that the adsorption machine 9 no longer pulls on the reinforcing fabric 102.

[0062] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-elasticity, aging-resistant PVC waterproof membrane, comprising PVC waterproof fabric (1), characterized in that: The PVC waterproof fabric (1) consists of two layers of PVC substrate (101) and a middle reinforcing fabric (102). The reinforcing fabric (102) is heat-sealed between the two layers of PVC substrate (101), and the reinforcing fabric (102) is provided with side strips (103) on both sides.

2. A manufacturing equipment for high-elasticity, aging-resistant PVC waterproof membrane, characterized in that: Includes a workbench (2), on which a heat sealing component (3) is installed, and on which a traction machine (5) is installed via support legs (4), and on the front and rear surfaces of the traction machine (5) are adsorption machines (9); The traction machine (5) includes a front cover (501) and a rear cover (503). Two conveyor rollers (504) are rotatably mounted between the front cover (501) and the rear cover (503) via bearings. A conveyor belt (505) is sleeved on the outer side of the two conveyor rollers (504). Several traction components (6) are embedded on the surface of the conveyor belt (505). Each of the aforementioned traction components (6) includes a plurality of main units (601), and the plurality of main units (601) are fixedly connected to each other. A first piston chamber (603) is provided inside the main unit (601). A storage chamber (602) is provided inside the main unit (601) and above the first piston chamber (603). A first piston block (604) is slidably installed inside the first piston chamber (603). A push column (605) is fixedly installed on the top of the first piston block (604). The top of the push column (605) extends into the storage chamber (602) and is fixedly installed with a moving disk (606). A telescopic column (608) is fixedly installed on the top of each moving disk (606). The top of each telescopic column (608) extends to the outside of the main unit (601) and is fixedly installed with a round protrusion (609).

3. The high-elasticity, aging-resistant PVC waterproof membrane manufacturing equipment according to claim 2, characterized in that: The telescopic column (608) is fitted with a first spring (607) on its outer side. The bottom end of the first spring (607) is fixedly connected to the top of the movable disk (606), and the top end of the first spring (607) is fixedly connected to the top of the inner cavity of the storage cavity (602).

4. The high-elasticity, aging-resistant PVC waterproof membrane manufacturing equipment according to claim 3, characterized in that: The main unit (601) has a second piston chamber (613) on its inner wall and on the side of the moving disk (606). The main unit (601) has a storage cavity (612) on its inner wall and at the left end of the second piston chamber (613). A second piston block (614) is slidably installed inside the second piston chamber (613). A piston column (615) is fixedly installed at the left end of the second piston block (614). One end of the piston column (615) extends into the storage cavity (612) and is fixedly installed with a push plate (617). One end of the push plate (617) is fixedly installed with a pin (618). A second spring (616) is sleeved on the outside of the piston column (615). The left end of the second spring (616) is fixedly connected to the right end of the push plate (617). The right end of the second spring (616) is fixedly connected to the right wall of the inner cavity of the storage cavity (612).

5. The high-elasticity, aging-resistant PVC waterproof membrane manufacturing equipment according to claim 4, characterized in that: The movable disk (606) has an inclined guide groove (621) on its outer side, and a socket (622) is provided inside the movable disk (606) and at one end of the pin (618). One end of the pin (618) is inserted into the socket (622).

6. The high-elasticity, aging-resistant PVC waterproof membrane manufacturing equipment according to claim 5, characterized in that: The front drive mechanism (7) is fixedly installed at the front end of the traction assembly (6), and the rear drive mechanism (8) is fixedly installed at the rear end of the traction assembly (6). Both the front drive mechanism (7) and the rear drive mechanism (8) include drive cylinders (701). The two drive cylinders (701) are respectively fixed to the sides of the two main units (601) at the front and rear ends. Each drive cylinder (701) has a third piston chamber (702) inside. Each drive cylinder (701) has a moving chamber (704) inside and on the side of the third piston chamber (702). A reciprocating screw (705) is rotatably installed in the moving chamber (704) through a bearing. A moving block (708) is assembled on the outside of the reciprocating screw (705). A piston rod (707) is fixedly installed at one end of each moving block (708). One end of each of the reciprocating screws (705) extends into the third piston chamber (702) and is fixedly installed with a third piston block (703). The other end of each of the reciprocating screws (705) extends into the outside of the drive cylinder (701) and is fixedly installed with a gear (706). An injection pipe (610) is fixedly installed inside the first drive cylinder (701). One end of the injection pipe (610) passes through the main unit (601) and is connected to the bottom interface of the first piston chamber (603) through a branch pipe. An input pipe (620) is fixedly installed inside the last drive cylinder (701). One end of the input pipe (620) passes through the main unit (601) and is connected to the second piston chamber (613) through a support head. The support head is located inside the second piston chamber (613) and inside the left cavity of the second piston block (614).

7. The high-elasticity, aging-resistant PVC waterproof membrane manufacturing equipment according to claim 6, characterized in that: The front hood (501) and the rear hood (503) are both provided with annular cavities (512), and the traction assembly (6) and the front drive mechanism (7) are both located inside the annular cavities (512).

8. The high-elasticity, aging-resistant PVC waterproof membrane manufacturing equipment according to claim 7, characterized in that: A third rack (510) is fixedly installed on the upper part of the inner wall of the annular cavity (512) on the rear cover (503), and a fourth rack (511) is fixedly installed on the inner wall of the annular cavity (512) and the side of the third rack (510). A first rack (508) is fixedly installed on the upper part of the inner wall of the annular cavity (512) on the front cover (501), and a second rack (509) is fixedly installed on the inner wall of the annular cavity (512) and the side of the first rack (508). The first rack (508), the second rack (509), the third rack (510) and the fourth rack (511) all cooperate with the gear (706).

9. The high-elasticity, aging-resistant PVC waterproof membrane manufacturing equipment according to claim 8, characterized in that: A drive cover (502) is fixedly installed on the side of the front cover (501). A first motor (507) is fixedly installed on the inner side below the drive cover (502). The output end of the first motor (507) and one end of the conveying roller (504) both extend into the interior of the drive cover (502). A sprocket (506) connected by a chain belt drive is fixedly sleeved on the outer side of the output end of the first motor (507) and one end of the conveying roller (504).

10. The high-elasticity, aging-resistant PVC waterproof membrane manufacturing equipment according to claim 9, characterized in that: The adsorption machine (9) includes a frame (901). Support legs (4) are fixedly installed below the drive cover (502) and the rear cover (503). A frame (901) is fixedly installed at the top of each support leg (4) and on the outer side of the drive cover (502) and the rear cover (503). A rotating roller (902) is rotatably mounted between the inner wall of one frame (901) and the outer side of the drive cover (502), and between the outer side of the rear cover (503) and the inner wall of the other frame (901) via bearings. Two rotating rollers (902) are fitted together. The machine is equipped with a mesh belt (903). A suction box (904) is fixedly installed on the inner wall of the frame (901) between two rotating rollers (902). A pump (905) is fixedly installed at the bottom of the suction box (904). The suction end of the pump (905) extends into the interior of the suction box (904). Several suction holes (906) are opened on the surface of the suction box (904). A second motor (907) is fixedly installed on the side of the frame (901). The output end of the second motor (907) is connected to one end of the rotating roller (902). A limiting mechanism (10) is fixedly installed on the top of the workbench (2). The limiting mechanism (10) includes a fixed frame (1001). The fixed frame (1001) is fixedly installed on the top of the workbench (2) and above the traction machine (5). An electric telescopic rod (1002) is fixedly installed below the fixed frame (1001), and a pressure plate (1003) is fixedly installed at the telescopic end of the electric telescopic rod (1002). The heat sealing assembly (3) includes a heat sealing roller machine (301). The heat sealing roller machine (301) is mounted on the left side of the workbench (2). A lower extruder (304) is fixedly installed on the top of the workbench (2). An upper extruder (303) is fixedly installed on the side of the heat sealing roller machine (301). A feeder (302) is fixedly installed on the top of the workbench (2) and behind the traction machine (5).

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