Downward lifting type dimmable sunshade curtain and processing method of curtain material

Abstract

The invention relates to a downward lifting type dimmable sunshade curtain and a processing method of a curtain material, a sunshade curtain body is formed by combining a curtain frame main body and a sunshade curtain material main body, the curtain frame main body drives a brake head through a pull rope, and the brake head drives a round pipe to control the sunshade curtain material main body to move up and down and drives a shading sheet to be synchronously unfolded or folded, so that the shading effect is adjusted; the sunshade curtain material body is composed of shading yarn, lifting piece drawing wires and shading pieces, the shading pieces are connected with the shading yarn through the lifting piece drawing wires, and the up-down folding action of the shading pieces is achieved. The process weft naturally shears the shading yarn and shading piece weaving connecting warp, so that the adjacent shading yarn and shading piece are separated, and the foldable structure of the shading piece is achieved by controlling the vertical position of the lifting piece drawing wire. The sunshade curtain is simple in structure and convenient to operate, has good shading adjusting capacity and visual attractiveness, and is suitable for various windows and indoor environments.

Description

Technical Field

[0001] This application relates to the field of building shading devices, and in particular to a pull-down adjustable light-blocking shading curtain and a method for processing the curtain material. Background Technology

[0002] With the continuous improvement of people's living standards and increasing attention to the comfort of their living environment, sunshade products are being used more and more widely in building decoration, especially curtains. These curtains not only fulfill the basic functions of blocking light, providing sun protection, and protecting privacy, but also play an important role in decoration and light regulation. Common sunshade curtains on the market include roller blinds, Venetian blinds, honeycomb blinds, and fabric curtains, most of which are pull-up structures, meaning the folding and unfolding of the blackout panels is achieved by rolling or pulling them upwards.

[0003] However, existing pull-up sunshades generally have the following problems: First, the pulling structure is relatively complex, especially in multi-layered shading structures which require multiple synchronous control mechanisms, resulting in high manufacturing and maintenance costs; Second, because the direction of gravity is the same as the pulling direction, the shading sheet is prone to sliding down when not fixed, affecting the performance; Third, some sunshades can only perform simple lifting and lowering movements when achieving the shading function, and cannot be finely adjusted according to indoor lighting needs, resulting in an inflexible switching between shading and light transmission states, affecting the user experience.

[0004] Furthermore, while some flexible sunshades currently use lightweight materials and electric mechanisms for automated control, their shading structures are mostly full-width lifting and lowering, unable to achieve localized dimming or segmented control, thus offering limited support for users' personalized needs. Products using dimming venetian blinds, while able to adjust the angle of light, have a relatively rigid structure, making them unsuitable for flexible installation and applications in small spaces. Additionally, dust easily accumulates between the venetians, making cleaning and maintenance inconvenient. Summary of the Invention

[0005] In order to improve the technical problem that some sunshade curtains can only perform simple lifting and lowering movements when realizing the light-blocking function, and cannot be finely adjusted according to the indoor lighting needs, resulting in an inflexible switching between light-blocking and light-transmitting states, this application provides a pull-down adjustable light-blocking sunshade curtain and a processing method for the curtain material.

[0006] The technical solution provided in this application for a pull-down adjustable light-blocking sunshade and its fabric processing method is as follows: Firstly, a pull-down adjustable light-blocking sunshade includes a main body, which is composed of a curtain frame assembly, curtain material, and a lower rod assembly assembled together. The upper end of the curtain material is fixed to the curtain frame assembly, and the lower end of the curtain material is fixed to the lower rod assembly; The curtain frame assembly includes a pull bead that allows the curtain to rise and fall in both directions, simultaneously opening and folding the light-blocking slats of the curtain. The two adjacent light-blocking slats that are opened join together to block light. When the curtain material is pulled by the pull beads, the light-blocking sheet can be opened or folded.

[0007] By adopting the above technical solution, the limitations of traditional sunshade curtains, which can only be simply raised and lowered, are overcome. The use of a beaded system for forward and reverse pulling allows the curtain material to rise and fall smoothly while precisely adjusting the state of the blackout slats. The blackout slats automatically open or fold as needed during the raising and lowering process, ensuring flexible adjustment of indoor lighting. The opening and closing degree of the sunshade curtain can be adjusted according to different time periods or light intensities, achieving a fine switch between blackout and light transmission. The beaded system in the curtain frame assembly allows the blackout slats to move synchronously with the raising and lowering of the curtain material. As the curtain material rises and falls, the blackout slats automatically open or fold, and adjacent blackout slats... When the light-blocking panels are opened, they combine at both ends to form a complete blocking effect, effectively blocking light from entering, enhancing the light-blocking ability of the sunshade, preventing light leakage, and ensuring indoor privacy and comfort. The down-pulling structure allows for easy and smooth adjustment of the sunshade by simply pulling the beaded cord. The lifting and lowering of the sunshade and the opening and closing of the light-blocking panels become more stable under the pull of the beaded cord, avoiding the jamming or unevenness caused by manual lifting of traditional sunshades. It not only provides excellent light-blocking performance but also allows for flexible adjustment according to changes in indoor and outdoor lighting, adapting to the lighting needs of different environments.

[0008] Optionally, the curtain frame assembly includes a pull bead, a control head, a round tube assembly, a tail plug, and an upper cover. The upper cover contains the round tube assembly. The control head is provided on one side of the upper cover, and the tail plug is provided on the other side of the upper cover. Both the control head and the tail plug are sleeved on both ends of the round tube assembly. The control head is provided with a pull bead. When the pull bead is pulled, it pulls the ratchet assembly inside the control head to rotate. The rotating ratchet assembly synchronously drives the round tube assembly to rotate. The round tube assembly includes a lifting strip pull belt, a curtain material belt, and a grooved round tube. The round tube assembly has symmetrically recessed grooves on both sides of its outer circumference. The lifting strip pull belt is installed in the groove. The lifting strip pull belt and the curtain material belt simultaneously hold one end of the curtain material.

[0009] By adopting the above technical solution, the coordinated operation of the beaded chain system, the control head, and the ratchet assembly achieves smooth control of the sunshade. Pulling the beaded chain triggers the ratchet assembly inside the control head to rotate, which in turn drives the round tube assembly to rotate, thus raising and lowering the sunshade. The ratchet assembly ensures stability during the raising and lowering process, avoiding the jamming problem caused by mechanical instability in traditional sunshades. The round tube assembly securely fixes one end of the curtain material through the lifting clip and the curtain material clip, ensuring that the curtain material moves synchronously with the round tube assembly during the raising and lowering process, and guaranteeing the synchronization of the curtain material and the light-blocking sheet. Folding and unfolding allows for precise control of the slat status, enabling flexible adjustment of the slat opening and closing to meet different lighting needs. The slot design of the round tube kit effectively secures the lifting clip and curtain material clip, improving the connection stability between the curtain material and the round tube. This prevents malfunctions caused by loose clips during the lifting and lowering of the sunshade, enhancing the reliability and durability of the entire system. The pull ball allows for smooth operation of the control head, enabling a simple and intuitive operation process. Simply pulling the pull ball easily adjusts the lifting and lowering of the sunshade and the slat status, making operation convenient.

[0010] Optionally, the curtain material includes lifting strips, blackout yarn, and blackout sheets. The blackout yarn has several lifting strips arranged longitudinally, and the blackout yarn has several blackout sheets evenly distributed from top to bottom. The lower end of the curtain material is provided with a lower rod to wrap, fix, and support the weight. The upper end of the light-blocking sheet is horizontally connected to the light-blocking yarn, and the lower end of the light-blocking sheet is suspended and connected to several lifting strips. When the lifting strips are pulled upward, the lower end of the light-blocking sheet is pulled upward synchronously with the lifting strips so that the light-blocking yarn is unobstructed. When the lifting strips are moved downward, the lower end of the light-blocking sheet is extended downward synchronously with the lifting strips so that the light-blocking sheet covers the light-blocking yarn.

[0011] By adopting the above technical solution, the curtain material achieves synchronous lifting and lowering of the blackout sheet and the blackout yarn, as well as adjustment of the blackout effect. The connection between the lifting sheet and the blackout sheet ensures that during the lifting operation, the lower end of the blackout sheet can be pulled upward synchronously with the lifting sheet, so that the blackout yarn is completely unobstructed and light can pass through. When the lifting sheet moves downward, the lower end of the blackout sheet also moves downward synchronously and extends, thereby blocking the blackout yarn and achieving the blackout effect. The state of the blackout sheet can be precisely controlled, so as to flexibly adjust between blackout and light transmission to meet different lighting needs and improve the functionality and convenience of the sunshade curtain. At the same time, the lower end of the curtain material is wrapped and fixed by the lower rod and supports the weight, which enhances the structural stability and ensures that the blackout sheet operates smoothly and is durable.

[0012] Optionally, the lower rod assembly includes a lower rod, with lower rod covers on both sides, and a clip for fixing the curtain material is provided in the inner cavity of the lower rod; Both the upper and lower ends of the lower rod are provided with openings. The opening at the lower end is connected to an I-shaped anti-collision strip, which extends beyond the opening at the lower end of the lower rod.

[0013] By adopting the above technical solution, the lower rod assembly achieves stable fixing and anti-collision protection of the curtain material. The clamps inside the lower rod firmly fix the curtain material, ensuring that the sunshade curtain does not loosen or fall off during the lifting and lowering process. The lower rod covers on both sides of the lower rod further enhance the stability of the structure and provide protection for the lower rod, extending its service life. The opening at the lower end of the lower rod is connected to an I-shaped anti-collision strip, which extends out of the lower end of the lower rod and effectively buffers the impact force that may be generated during the lifting and lowering process of the sunshade curtain, avoiding collisions with the ground or other objects, protecting the sunshade curtain from damage, and ensuring the smooth and long-lasting operation of the system.

[0014] Secondly, a method for processing the curtain material of a pull-down adjustable light-blocking sunshade includes the following steps: Several warp process yarns are output. Based on the overall width and design density requirements of the curtain fabric, long filaments are selected as warp process yarns. The warp process yarns are first warped to a fixed length on the warping machine to ensure uniform yarn tension and avoid curtain warping or uneven weft density due to tension differences. After warping, the process yarns are wound onto the warp beam, which is installed on the warp frame of the weaving equipment. They are then sequentially introduced into the loom through guide rollers and yarn dividers to form a uniform and parallel warp arrangement, providing a foundation for the subsequent interweaving of blackout yarn and puller yarns. The upper end of the process yarn outputs a light-blocking yarn, which is the main light-blocking layer in the weaving structure. This light-blocking yarn is made of coated polyester yarn or high-density nylon yarn, with a surface treated for UV protection and anti-static properties. Output from the yarn frame, the light-blocking yarn is evenly distributed above the warp process yarns by guide rollers. Under the control of the weaving machine's shedding device, it interweaves with the warp process yarns to form the initial mesh structure. During this process, the tension of the light-blocking yarn is set between 15 and 25 cN / tex and adjusted in real time by an electronic tension controller to ensure that the light-blocking yarn does not wrinkle or break during interlacing. Several lifting strips are evenly arranged on the upper surface of the blackout yarn. These lifting strips serve as the support and light-adjusting transmission unit for the curtain structure. They are evenly arranged on the upper surface of the blackout yarn, with a diameter between 0.15 and 0.30 mm, requiring good flexibility and tensile strength. The arrangement of the lifting strips is accomplished by an automatic yarn guiding mechanism, distributing them evenly in the transverse direction of the curtain at predetermined intervals. After arrangement, a temporary pressure roller gently presses the lifting strips to adhere them to the blackout yarn, laying the foundation for the subsequent installation of the blackout sheets. The upper surface of the lifting sheet is uniformly arranged with several light-blocking sheets from top to bottom. The light-blocking sheets are key components for controlling the angle of light transmission. After pre-cutting into strips, their width is consistent with the design spacing of the curtain fabric. During the weaving process, the lifting sheet (201) serves as the supporting layer for the light-blocking sheets (203). The light-blocking sheets are inserted or woven into the gaps between the lifting sheets from top to bottom. The upper and lower edges of each light-blocking sheet are fixed to the lifting sheet through hot pressing or spot bonding processes, so that it can maintain synchronous rotation and lifting during subsequent pulling. The density of the light-blocking sheets is controlled at one sheet every 25-30 mm to ensure the overall uniformity of light blocking. Between adjacent light-blocking sheets, there is an interlacing section between the light-blocking yarn and the sheet. In order to achieve an adjustable light transmission effect, an interlacing section between the light-blocking yarn and the sheet needs to be set between adjacent light-blocking sheets (203). This interlacing section is automatically controlled by the heddle selection mechanism of the loom. By controlling the lifting and pulling of the sheet to alternately interlacing in a local area, the light-blocking yarn forms a tight weave structure in this area. The interlacing section is used to connect adjacent light-blocking sheets and plays a role in overall support and tensile resistance of the curtain. The weaving tension is slightly higher than that of the light-blocking sheet area. The lifting strip wire is connected to the lower end of each piece of blackout yarn in a dotted manner. After the main body of the curtain fabric is woven, the lower end of the lifting strip wire (201) and each piece of blackout yarn (202) needs to be dotted. Ultrasonic hot melting and hot pressing adhesive dots are used to form stable connection points between the lifting strip wire and the blackout yarn at a certain distance. Each connection point has a diameter of about 1.0 to 1.5 mm and a spacing of 10 to 15 cm. This prevents the wire from slipping or misaligning during long-term use, ensures smooth and flat winding of the curtain fabric, and maintains the accurate positioning of the blackout sheet during its up-and-down movement. Step 2: Trimming and Shaping Use a trimming tool to cut open the C-side of the weave joint between the two ends of the lifting yarn and the blackout yarn. The cut depth should be controlled to 90% ± 5% of the thickness of the joint layer, and the cut width should be ≤ 0.3 mm. The cut length should cover the entire width of each section where the lifting yarn and blackout yarn are joined. Use a trimming tool to cut open the woven surface A of the lifting strip and the blackout yarn, allowing the lifting strip to flip upwards. The distance from the cutting point to the lower edge of the blackout sheet should be 2.0–5.0 mm (adjustable according to product specifications), with a tolerance of ±0.5 mm. This ensures that the lifting strip can flip upwards and reliably support the folding action of the blackout sheet. Use a trimming tool to cut open the weave joint between the process yarn and the blackout yarn, and remove the process yarn. When cutting, the integrity of the blackout yarn should be preserved. The process yarn should be removed to a depth sufficient to completely separate it without any residue. The pulling torque should be controlled between 0.5 and 2 N to avoid damaging the blackout yarn. The operating sequence and synchronous actions are as follows: First, cut the C-side. After cutting, do not immediately remove the lifting piece; retain temporary clamps to prevent displacement. Then, cut the lower end of the A-side so that the lower end of the lifting piece can be flipped upwards. Finally, cut and remove the process threads. At this point, pull the lifting piece according to the design to check the formation effect of the folded light-blocking sheet and whether the exposed width of the light-blocking yarn meets the specifications. When the lifting sheet is pulled, the lifting sheet can pull the lower end of each light-blocking sheet upward along the lifting sheet pulling direction to form a folded light-blocking sheet. The light-blocking yarn is exposed between two adjacent folded light-blocking sheets. When the lifting sheet is released from top to bottom, the lower end of each light-blocking sheet is simultaneously extended downward from the curved shape along the lifting sheet pulling direction to flatten it into the light-blocking sheet before folding. The light-blocking yarn is blocked by two adjacent folded light-blocking sheets.

[0015] By adopting the above technical solution, the precise weaving and processing control of the light-blocking sheets and lifting sheet yarns are achieved, enabling the sunshade curtain to automatically adjust the state of the light-blocking sheets when pulled up. The weaving process in step one ensures the tight arrangement and fixation of the light-blocking yarn, lifting sheet yarns, and light-blocking sheets, allowing each light-blocking sheet to move precisely along its direction under the pull of the lifting sheet yarns. When the lifting sheet yarns are pulled, the lower end of the light-blocking sheet bends upward along the direction of the yarns, forming a folded state, and the light-blocking yarns are exposed between adjacent light-blocking sheets, achieving partial light transmission while maintaining the light-blocking effect; when When the lifting sheet is pulled and released, the light-blocking sheet gradually extends from a curved state to a flat state, blocking the light-blocking yarn and providing a complete light-blocking effect. The trimming and shaping process in step two ensures the adjustability of the lifting sheet and the synchronous movement of the light-blocking sheet by precisely trimming and removing excess process yarns at the interface with the light-blocking yarn. This allows the sunshade curtain to be easily adjusted in terms of light blocking and light transmission during use, improving the flexibility and stability of the system and making the light-blocking effect of the sunshade curtain more precise, meeting the adjustment requirements of different lighting needs.

[0016] Optionally, the light-blocking yarn is a unidirectional high-density fabric with a light-blocking rate of not less than 85%, and is treated with an anti-ultraviolet coating. By adopting the above technical solution, the unidirectional high-density fabric structure ensures that the blackout yarn has good shading performance, with a shading rate of not less than 85%, effectively blocking strong outdoor sunlight; at the same time, its surface is treated with an anti-ultraviolet coating, which can resist ultraviolet radiation, prevent indoor items from aging and fading due to prolonged sun exposure, and improve the durability and practicality of the sunshade curtain.

[0017] Optionally, the lifting sheet is made of polyester fiber material, which has good tensile strength and flexibility, and is coated with a wear-resistant coating to improve service life. By adopting the above technical solutions, the polyester fiber material gives the lifting sheet good tensile strength and flexibility, which can maintain a state of no breakage and no deformation during frequent pulling, ensuring smooth folding of the light-blocking sheet; at the same time, its surface is coated with a wear-resistant coating, which effectively reduces the wear rate, extends the overall service life, improves the reliability and stability of the sunshade product, and meets the needs of scenarios with multiple light adjustments and long-term use.

[0018] Optionally, the light-shielding sheet has a multi-layer composite structure, including a surface decorative layer, an intermediate light-shielding layer and a bottom support fabric, with an overall thickness of 0.2-0.5mm.

[0019] By adopting the above technical solution, the multi-layer composite structure design makes the light-blocking sheet both aesthetically pleasing and functional. The surface decorative layer enhances the visual effect, the middle light-blocking layer effectively blocks light, and the bottom support fabric enhances the tensile and folding resistance of the light-blocking sheet. The overall thickness is controlled between 0.2-0.5mm to ensure flexibility and smooth folding, which helps the sunshade curtain to be durable and comfortable to use during frequent opening and closing, and meets the application needs of diverse sunshade environments.

[0020] Optionally, the point-like connection between the lifting sheet and the light-shielding sheet is achieved using a hot-press bonding process, with the bonding points distributed at both ends of the lower edge of the light-shielding sheet to ensure a firm connection without affecting the folding and bending performance.

[0021] By adopting the above technical solution, the hot-press bonding process ensures that the joints are firmly bonded and not easy to fall off, thus ensuring the stability of the light-blocking sheet during repeated pulling. The bonding points are reasonably distributed at both ends of the lower edge of the light-blocking sheet, which not only enhances the structural stability but also avoids rigid interference with the central folding area, thereby ensuring the smooth bending of the light-blocking sheet during folding and improving the overall light-adjusting flexibility and durability of the sunshade.

[0022] Optionally, during the trimming and shaping process in step two, the cutting of surface C and surface A is completed using an automatic cutting device, with the cutting accuracy error controlled within ±0.5mm.

[0023] In summary, this application includes at least one of the following beneficial technical effects: 1. The main body of the sunshade curtain can be raised and lowered by pulling the rope, and the lifting panel can be pulled to fold or unfold the light-blocking panel. While ensuring full light blocking, it can be gradually switched to a soft light transmission state to meet the personalized light needs of different time periods or indoor activities. 2. Adopting a pull-down operation mode, it conforms to ergonomics. Users can easily switch between blackout and curtain raising / lowering by simply pulling down the cord, solving the problem of inconvenience in operating traditional pull-up curtains; 3. The curtain frame is equipped with a ratchet assembly and a sunshade fixing module. Driven by the pull rope, it can stably control the raising and lowering position of the sunshade and prevent the sunshade from failing due to gravity slippage. 4. The light-blocking panels are connected by a dotted connection of lifting strips and are precisely fixed by a hot-pressing process, so that multiple light-blocking panels can be folded or unfolded simultaneously. The structure is compact and the movement is coordinated, which is superior to the complex flipping system of traditional Venetian blinds. 5. The sunshade curtain material is made of high-performance fabrics such as polyester fiber, composite blackout sheet, and UV-resistant high-density blackout yarn, which have good tensile strength, bending strength, UV resistance and wear resistance. The overall processing flow is standardized and can be automated for cutting, which is conducive to large-scale production and quality control. 6. The blackout yarn is made of high-density fabric and treated with UV protection coating, which can provide a blackout rate of no less than 85%, while reducing the entry of ultraviolet rays into the room and protecting furniture and human health. 7. The modular design of each component facilitates quick assembly and replacement, reduces manufacturing costs and post-maintenance difficulty, and is suitable for shading applications in various scenarios such as homes, offices, and hotels. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a pull-up adjustable light-blocking sunshade according to an embodiment of this application.

[0025] Figure 2 This is a partial left-side view of the pull-up adjustable light-shading curtain according to an embodiment of this application.

[0026] Figure 3 This is a schematic diagram of the lower rod assembly of the pull-up adjustable light-shading curtain according to an embodiment of this application.

[0027] Figure 4 This is a schematic diagram showing the connection between the curtain material and the lower rod assembly of the pull-up adjustable light-blocking sunshade in an embodiment of this application.

[0028] Figure 5 A schematic diagram of the curtain material is provided for the processing method of the pull-up adjustable light-shading curtain in the embodiments of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Highest point: Main body; 10. Curtain frame assembly; 101. Bead pull; 102. Head; 103. Round tube assembly; 104. Tail plug; 105. Upper cover; 1031. Lifting piece pull belt; 1032. Curtain material belt; 1033. Round tube with groove; 20. Curtain material; 201. Lifting piece pull belt; 202. Blackout yarn; 203. Blackout sheet; 204. Process yarn; 205. Interlacing section between blackout yarn and sheet; 30. Lower rod assembly; 301. Lower rod cover; 302. Lower rod; 303. Belt; 304. Anti-collision strip. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0031] This application discloses a pull-down adjustable light-shading curtain, referring to... Figures 1-4 The system includes a main body 1, which comprises a curtain frame assembly 10, a curtain fabric 20, and a lower rod assembly 30. The upper end of the curtain fabric 20 is fixed to the curtain frame assembly 10, and the lower end of the curtain fabric 20 is fixed to the lower rod assembly 30. The curtain frame assembly 10 includes a pull bead 101 that can be pulled forward and backward, allowing the curtain fabric 20 to rise and fall, simultaneously opening and folding the light-blocking slats 203 of the curtain fabric 20. When two adjacent light-blocking slats 203 are opened, they join together to block light. When the curtain fabric 20 is pulled by the pull bead 101, the open and folded states of the light-blocking slats 203 are changed. Through the forward and reverse pulling operation of the pull bead 101, the raising and lowering of the curtain fabric 20 can be precisely controlled, and the opening and closing states of the light-blocking slats 203 can be adjusted simultaneously. The folding and unfolding of the light-blocking slats allows the sunshade curtain to flexibly switch between light blocking and light transmission as needed, providing an ideal indoor lighting environment. It can precisely adjust the light according to changes in external light or different privacy requirements. The linear strength enhances the comfort of living and office environments. When the light-blocking slats 203 are fully open, the ends of two adjacent light-blocking slats combine to effectively block light, avoiding the light leakage problem of traditional sunshades, improving the light-blocking effect, and providing a more uniform and seamless light-blocking layer. This avoids the problem of incomplete light blocking caused by misalignment of the light-blocking slats in traditional sunshades. The pull bead 101, as a control system, enables the curtain material 20 to rise and fall smoothly and adjusts the state of the light-blocking slats synchronously. Multiple light adjustments can be achieved simply by pulling the pull bead, which not only improves ease of use but also ensures the smoothness of the rising and falling process, avoiding the phenomenon of uneven or stuck rising and falling in traditional sunshades. The firm connection between the curtain material 20 and the curtain frame assembly 10 and the lower rod assembly 30 ensures the stability of the entire sunshade system. During long-term use, the stability and durability of the structure are effectively guaranteed, improving the service life and reliability of the product.

[0032] The curtain frame assembly 10 includes a pull bead 101, a control head 102, a round tube assembly 103, a tail plug 104, and an upper cover 105. The round tube assembly 103 is housed inside the upper cover 105. The control head 102 is used to seal one side of the upper cover 105, and the tail plug 104 is used to seal the other side. Both the control head 102 and the tail plug 104 are sleeved onto both ends of the round tube assembly 103. The control head 102 has a pull bead 101. When the pull bead 101 is pulled, it causes a ratchet assembly inside the control head 102 to rotate. The rotating ratchet assembly synchronously drives the round tube assembly 103 to rotate. The curtain frame assembly is connected via the pull bead 101 and the control head 102. The coordinated action of the head 102, the round tube assembly 103, the tail plug 104, and the upper cover 105 provides precise adjustment and stable control of the curtain's movement. When the pull bead 101 is in operation, it pulls the ratchet assembly inside the head 102 to rotate, which in turn drives the round tube assembly 103 to rotate, thus achieving smooth opening and closing of the curtain. The head 102 and the tail plug 104 are connected to the round tube assembly 103 through a sleeve connection, ensuring the stability and durability of the structure and avoiding common problems of loosening or damage. The upper cover 105 protects the internal components from external environmental influences by covering the round tube assembly 103, extending its service life. The round tube assembly 103 includes a lifting strap 1031, a curtain material strap 1032, and a grooved round tube 1033. The round tube assembly 103 has symmetrically recessed grooves on both sides of its outer circumference. The lifting strap 1031 is installed within each groove. The lifting strap 1031 and the curtain material strap 1032 simultaneously secure one end of the curtain material 20. The round tube assembly 103 provides reliable and stable curtain fixing and adjustment functions through the lifting strap 1031, the curtain material strap 1032, and the grooved round tube 1033. The 031 and curtain material clip 1032 work synchronously to firmly fix one end of the curtain material 20, ensuring that the curtain will not fall off or become loose during the pulling process. The concave structure of the clip groove allows the lifting clip 1031 to be firmly embedded, enhancing the tightness and stability of the structure and avoiding the phenomenon of curtain shifting or operation being difficult due to loose clips in traditional designs. The round tube kit 103 ensures smooth curtain pulling while improving the durability and damage resistance of the curtain system, enhancing the user experience and the long-term stability of the curtain.

[0033] The curtain fabric 20 includes lifting filaments 201, blackout yarn 202, and blackout sheets 203. The blackout yarn 202 has several lifting filaments 201 arranged longitudinally, and several blackout sheets 203 are evenly distributed from top to bottom on the blackout yarn 202. A lower rod 302 is provided at the lower end of the curtain fabric 20 to wrap, fix, and support the weight. The upper end of the blackout sheet 203 is laterally connected to the blackout yarn 202, and the lower end of the blackout sheet 203 is suspended and connected to the lifting filaments 201. When the lifting filaments 201 are pulled upwards, the lower end of the blackout sheet 203 is pulled upwards synchronously, leaving the blackout yarn 202 unobstructed. When the lifting filaments 201 move downwards, the lower end of the blackout sheet 203 extends downwards synchronously, thus blocking the blackout yarn 202. The light-blocking strip 203 is horizontally connected to the light-blocking gauze 202 and connected to the lifting rod 201. When the lifting rod 201 is pulled, the lower end of the light-blocking strip 203 moves up and down synchronously with the lifting rod 201, which can precisely adjust the light-blocking effect. When the lifting rod 201 is pulled upward, the light-blocking strip 203 completely exposes the light-blocking gauze 202, allowing unobstructed light to pass through. When pulled downward, the light-blocking strip 203 can effectively block the light-blocking gauze 202, providing excellent light-blocking effect. The wrapping and fixing function of the lower rod 302 ensures that the lower end of the curtain 20 is stable and prevents it from fluttering or drooping unevenly. This significantly improves the light-blocking and privacy protection functions of the curtain, while also making it easy to operate and improving the user's comfort and convenience.

[0034] The lower rod assembly 30 includes a lower rod 302, with lower rod caps 301 on both sides of the lower rod 302, effectively sealing both ends of the lower rod and enhancing the integrity and aesthetics of the structure. The lower rod 302 has a retainer 303 inside to fix the curtain material 20, ensuring that the curtain hangs vertically without shifting or loosening. The lower rod 302 has openings at both the upper and lower ends for easy installation and disassembly. The lower opening is connected to an I-shaped anti-collision strip 304, which not only improves the stability of the lower rod but also effectively prevents the curtain from colliding with the ground or obstacles during the pulling process, reducing damage and wear. The anti-collision strip 304 extends outside the opening at the lower end of the lower rod 302. The I-shaped design of the anti-collision strip 304 allows it to extend beyond the lower end of the lower rod 302, further enhancing the anti-collision effect and protecting the lower end of the curtain from external impacts, while also providing additional stability to the curtain system.

[0035] The implementation principle of the pull-down adjustable light-shading curtain in this application embodiment is as follows: The pull-down adjustable light-shading curtain in this application embodiment provides a precise and flexible pull-down adjustable light-shading curtain through the coordinated work of multiple modules such as the pull bead 101, the curtain frame assembly 10, the curtain material 20, and the lower rod assembly 30. The curtain frame assembly 10 realizes the up and down adjustment of the curtain material 20 through the operation of the pull bead 101, and can simultaneously control the opening and closing state of the light-blocking sheet 203. The forward and reverse operation of the pull bead 101 allows for flexible adjustment of the folding and unfolding of the blackout sash 203 according to needs, thereby controlling the indoor lighting environment. The pull bead 101, by pulling the ratchet assembly inside the control head 102, drives the round tube assembly 103 to rotate, causing the curtain fabric 20 to rise and fall. The round tube assembly 103, through the cooperation of the lifting clip 1031 and the curtain fabric clip 1032, firmly secures the curtain fabric 20, ensuring smooth pulling of the curtain and avoiding operational difficulties caused by loose clips. The blackout sash 203, connected to the lifting clip 201, can precisely adjust the blocking state of the blackout gauze 202. It provides effective light blocking; the lower rod assembly 30, through the lower rod 302, lower rod cover 301, and clip 303, enhances the stability and aesthetics of the structure. At the same time, the anti-collision strip 304 effectively avoids the curtain from colliding with the ground or obstacles, reducing the risk of damage. The I-shaped design of the anti-collision strip 304 further enhances stability and protects the curtain system from external impacts. The pull-down adjustable light-blocking shading curtain ensures the smoothness of curtain operation, light blocking, and durability. It can meet various light adjustment needs through simple pulling operation, while ensuring stability and comfort during long-term use.

[0036] Example 2 For the fabric processing method of pull-down adjustable light-blocking sunshade curtains, please refer to... Figure 5 The processing method of the curtain material 20 includes the following steps: Step 1: Weaving Several warp process yarns 204 are output. Based on the overall width and design density requirements of the curtain fabric, long filaments are selected as warp process yarns (204). The warp process yarns 204 are first warped to a fixed length on the warping machine to ensure uniform yarn tension and avoid curtain warping or uneven weft density due to tension differences. After warping, the process yarns 204 are wound onto the warp beam, which is installed on the warp frame of the weaving equipment. They are then introduced into the loom sequentially through guide rollers and yarn dividers to form a uniform and parallel warp arrangement, providing a foundation for the subsequent interweaving of the blackout yarn and the puller yarn. The upper end of the process yarn 204 outputs a light-blocking yarn 202. The light-blocking yarn 202 is the main light-blocking layer in the weaving structure, made of coated polyester yarn or high-density nylon yarn, with a surface treated for UV protection and anti-static properties. The light-blocking yarn 202 is output from the yarn frame and evenly distributed above the warp process yarns by guide rollers. Under the control of the weaving machine's shedding device, it interweaves with the warp process yarns to form the initial mesh structure. During this process, the tension of the light-blocking yarn 202 is set between 15 and 25 cN / tex and adjusted in real time by an electronic tension controller to ensure that the light-blocking yarn does not wrinkle or break during interlacing. Several lifting threads 201 are evenly arranged on the upper surface of the blackout yarn 202. The lifting threads 201 serve as the support and light-adjusting transmission unit for the curtain structure. They are evenly arranged on the upper surface of the blackout yarn 202, with a diameter between 0.15 and 0.30 mm, requiring good flexibility and tensile strength. The arrangement of the lifting threads 201 is accomplished by an automatic thread guiding mechanism, distributing them evenly in the transverse direction of the curtain at predetermined intervals. After arrangement, a temporary pressure roller gently presses the lifting threads to adhere them to the blackout yarn, laying the foundation for the subsequent installation of the blackout sheet. The upper surface of the lifting sheet 201 is uniformly arranged with several light-blocking sheets 203 from top to bottom. The light-blocking sheets 203 are key components for controlling the angle of light transmission. After pre-cutting into strips, their width is consistent with the design spacing of the curtain fabric. During the weaving process, the lifting sheet 201 serves as the supporting layer for the light-blocking sheets 203. The light-blocking sheets 203 are inserted or woven into the gaps between the lifting sheets from top to bottom. The upper and lower edges of each light-blocking sheet 203 are fixed to the lifting sheet 203 by hot pressing or spot bonding, so that it can maintain synchronous rotation and lifting during subsequent pulling. The arrangement density of the light-blocking sheets is controlled at one sheet every 25-30 mm to ensure overall light-blocking uniformity. A light-blocking yarn and sheet interlacing interval 205 is provided between adjacent light-blocking sheets 203. In order to achieve an adjustable light transmission effect, a light-blocking yarn and sheet interlacing interval 205 needs to be provided between adjacent light-blocking sheets 203. This interval is automatically controlled by the heddle selection mechanism of the loom. By controlling the lifting of the sheet and the alternating up and down interlacing of the yarn in a local area, the light-blocking yarn forms a tight weave structure in this area. The interlacing interval (205) is used to connect adjacent light-blocking sheets and plays a role in overall support and tensile resistance of the curtain. The weaving tension is slightly higher than that of the light-blocking sheet area. The lifting strip 201 is connected to the lower end of each piece of blackout yarn 202 in a point-like manner. After the main body of the curtain fabric is woven, the lower end of the lifting strip 201 and each piece of blackout yarn (202) needs to be point-likely connected. Ultrasonic hot melting and hot pressing adhesive points are used to make the lifting strip 201 and the blackout yarn 202 form stable connection points at a certain distance. Each connection point has a diameter of about 1.0 to 1.5 mm and a spacing of 10 to 15 cm. This prevents the lifting strip from slipping or misaligning during long-term use, ensures smooth and flat winding of the curtain fabric, and maintains the accurate positioning of the blackout sheet during vertical movement. Step 2: Trimming and Shaping Use a trimming tool to cut open the C-surface of the weave joint between the two ends of the lifting yarn 201 and the blackout yarn 202. The cutting depth should be controlled to 90% ± 5% of the thickness of the joint layer, and the cutting width should be ≤ 0.3 mm. The cutting length should cover the entire width of each section where the lifting yarn and blackout yarn are joined. Use a trimming tool to cut open the weave joint surface A between the lower end of the lifting tab filament 201 and the light-blocking yarn 202, so that the lifting tab filament 201 can be flipped upwards. The distance from the cutting point to the lower edge of the light-blocking sheet is 2.0–5.0 mm (adjustable according to product specifications), with a tolerance of ±0.5 mm, to ensure that the lifting tab can be flipped upwards and can reliably support the folding action of the light-blocking sheet. Use a trimming tool to cut the weave joint between the process yarn 204 and the blackout yarn 202, and remove the process yarn 204. When cutting, the integrity of the blackout yarn should be preserved. The removal depth of the process yarn 204 should be such that it is completely separated and can be pulled out without residue. The pulling torque should be controlled between 0.5 and 2 N to avoid damaging the blackout yarn. The operation sequence and synchronous actions are as follows: First, cut the C-side. After the cut is completed, do not immediately remove the lifting piece; retain temporary clamps to prevent the lifting piece from shifting. Then, cut the lower end of the A-side so that the lower end of the lifting piece can be flipped upwards. Finally, cut and remove the process thread (204). At this time, pull the lifting piece thread (201) according to the design to check the formation effect of the folded light-blocking sheet (203) and whether the exposed width of the light-blocking yarn meets the specifications. When the lifting sheet filament 201 is pulled, the lifting sheet filament 201 can pull the lower end of each light-blocking sheet 203 to bend upward along the direction of the lifting sheet filament 201, forming a folded light-blocking sheet 203. The light-blocking yarn 202 is exposed between two adjacent folded light-blocking sheets 203. When the lifting sheet filament 201 releases its length from top to bottom, the lower end of each light-blocking sheet 203 is simultaneously extended downward from a curved shape along the direction of the lifting sheet filament 201 and laid flat to form the light-blocking sheet 203 before folding. The light-blocking yarn 202 is blocked by two adjacent folded light-blocking sheets 203. Step 1 Weaving: Several warp process yarns 204 are used to form the weaving base, serving as a supporting skeleton for subsequent positioning processing; a light-blocking yarn 202 is placed above the process yarns 204. The light-blocking yarn 202 is a unidirectional high-density woven fabric with a light-blocking rate of not less than 85% and is coated with an anti-UV coating; several lifting strips 201 are evenly arranged on the longitudinal surface of the light-blocking yarn 202; multiple light-blocking sheets 203 are arranged equidistantly from top to bottom along the longitudinal direction of each lifting strip 201, adjacent to... The light-blocking sheets 203 are provided with interlacing sections 205 for light-blocking yarn and sheet, which facilitates folding and unfolding; the upper end of the light-blocking sheet 203 is fixed to the light-blocking yarn 202 by transverse sewing or heat pressing, and the lower end is connected to the lifting sheet filament 201 by heat pressing dot-like bonding. The bonding points are distributed on both sides of the bottom of the light-blocking sheet 203 to ensure stability and flexible bending ability; the light-blocking sheet 203 adopts a multi-layer composite structure, including a decorative layer, an intermediate light-blocking layer and a bottom support fabric, with a total thickness of 0.2 to 0.5 mm; Step two, trimming and shaping, uses an automatic cutting device to precisely cut the C-side and A-side of the junction between the lifting sheet filament 201 and the light-blocking yarn 202, with the error controlled within ±0.5mm; cut off both ends of the lifting sheet filament 201 so that it can be flipped up independently; cut off the process yarn 204 to release the light-blocking yarn 202 into a flexible structure; at this time, the lifting sheet filament 201 is pullable, and the light-blocking sheet 203 can bend and fold upwards or return to a straight state downwards under its action, completing the structural forming of the light-adjusting function.

[0037] The blackout yarn 202 is a high-density polyester unidirectional fabric with a blackout rate of ≥85% and an anti-UV coating. The lifting sheet 201 is made of polyester fiber filament, which has strong tensile strength and good flexibility. The outer layer is coated with a wear-resistant coating for high durability. The blackout yarn 202 adopts a three-layer composite structure. The surface decorative layer is a colored coated fabric, the middle layer is a high-density blackout film, and the bottom layer is a supporting fiber web, which has both blackout effect and maintains lightness and thinness.

[0038] The processing method of the curtain material 20 in this embodiment is divided into two stages: the weaving stage and the trimming and shaping stage.

[0039] Weaving stage: 1.1 Set several warp-direction process wires 204 as longitudinal support bases; 1.2 The upper end of the process yarn 204 is woven with a light-blocking yarn 202. The light-blocking yarn 202 is a unidirectional high-density fabric with a light-blocking rate of not less than 85% and a UV-resistant coating on the surface to improve weather resistance and sun resistance. 1.3 Several lifting strips 201 are evenly arranged on the width of the blackout yarn 202. Each lifting strip 201 is made of polyester fiber material, which has good tensile strength and flexibility. Its surface is also provided with a wear-resistant coating to improve the service life of the product. 1.4 Light-shielding sheets 203 are evenly arranged from top to bottom above the lifting sheet 201. The light-shielding sheet 203 has a multi-layer composite structure, including a surface decorative layer, an intermediate light-shielding layer and a bottom support fabric. The overall thickness is controlled between 0.2-0.5mm to ensure the light-shielding effect and smooth folding. 1.5 The light-shielding sheet 203 has a light-shielding yarn and sheet interlacing interval 205 between its upper and lower parts. The sheet lifting and pulling yarn 201 is connected to the lower end of each light-shielding sheet 203 by point hot-press bonding. The connection points are located at both ends of the lower edge of the light-shielding sheet, which ensures that the bonding is firm and does not affect the upward folding action of the light-shielding sheet 203.

[0040] Pruning and shaping stage: 2.1 Use automatic cutting equipment to complete the cutting operation, and control the cutting accuracy within ±0.5mm; 2.2 Cut the weaving interface C at both ends of the lifting sheet filament 201 and the blackout yarn 202 to give the lifting sheet filament 201 independent mobility; 2.3 Cut the lower end of the shearing sheet 201 and the weaving interface A of the blackout yarn 202 to release the space for bending and turning up; 2.4 Cut the braided connection surface of the process yarn 204 and the blackout yarn 202, remove the redundant process yarn 204, and make the blackout yarn 202 a free surface layer.

[0041] At this point, the main body of the sunshade curtain, which has been woven and trimmed, has the functions of light adjustment and folding. When the lifting tab 201 is pulled, the lower end of the light-blocking sheet 203 bends upward to become the folded light-blocking sheet 203. When the lifting tab 201 is released, the light-blocking sheet 203 naturally returns to the original folded light-blocking sheet 203, restoring the light-blocking state.

[0042] The implementation principle of the fabric processing method for the pull-up adjustable light-shading blind in this application embodiment is as follows: In the weaving stage, several warp-oriented process yarns 204 are first used as the longitudinal support base to provide stable support and framework. The process yarns 204 form the supporting skeleton of the entire curtain material, which helps with subsequent processing and positioning operations. Above the process yarns 204, a blackout yarn 202 is woven. The blackout yarn 202 is a high-density unidirectional fabric with a light-blocking rate of not less than 85% and is coated with an anti-UV layer to enhance the weather resistance and sun protection of the sunshade curtain. Lifting strips 201 are evenly arranged on the blackout yarn 202. The lifting strips 201 are made of polyester fiber yarn, which has high tensile strength and flexibility. Their surface is coated with a wear-resistant coating to extend their service life. Multiple blackout sheets 203 are arranged longitudinally at equal intervals along each lifting strip 201. The blackout sheets 203 are made of three layers. The composite structure includes a decorative layer, a high-density light-blocking layer, and a support fabric. The overall thickness is controlled between 0.2-0.5mm to ensure both light-blocking effect and lightweight design. The light-blocking sheet 203 is connected to the lifting sheet 201 at the top, ensuring flexibility in folding and unfolding. Between adjacent light-blocking sheets 203, there are interlacing sections 205 between the light-blocking yarn and the sheet, allowing for easy folding and unfolding of the light-blocking sheet 203. This prevents the light-blocking sheet from being too compact and affecting its adjustment function, while also ensuring uniformity and stability between the light-blocking sheets. During the trimming and shaping stage, an automatic cutting device precisely trims the joint surfaces C and A at both ends of the lifting sheet 201 and the light-blocking yarn 202, ensuring the independent mobility of the lifting sheet 201 and maintaining an accuracy control within ±0.5mm. Within a few millimeters, unnecessary materials were removed, providing flexibility for subsequent folding and light-adjusting operations. The lower end of the lifting strip 201 and the weaving interface with the blackout yarn 202 were trimmed, allowing the lifting strip 201 to be pulled independently. This ensures the up-and-down folding of the blackout sheet 203. The lifting strip 201 can be pulled to bend and fold the blackout sheet 203 or restore it to its flat state, ensuring that the blackout sheet's blocking and light-transmitting functions can be precisely adjusted as needed. By cutting and removing the process threads 204, the blackout yarn 202 is freed from the supporting structure, becoming a free and flexible structure, facilitating subsequent folding and unfolding of the blackout sheet. After weaving and trimming, the structure of the curtain material 20 possesses two core functions: folding and light-adjusting, and stability and durability. When the sheet is pulled 201, the lower end of the light-blocking sheet 203 bends upward, forming a folded state, exposing the light-blocking yarn 202 between the sheets, allowing light to pass through. When the sheet is released and the pulling 201 is lifted, the light-blocking sheet 203 returns to its flat position, blocking the light-blocking yarn 202 and achieving light blocking. It can precisely adjust the light blocking or light transmission state according to changes in external light or privacy needs. The light-blocking sheet 203 has high folding performance and durability, while the drawing material has strong tensile strength and abrasion resistance, ensuring that the curtain material maintains a stable and smooth adjustment effect during long-term use. This processing method effectively solves the problems of incomplete light blocking, awkward operation, and poor durability in traditional sunshade curtains, while improving user comfort and convenience through simple operation.

[0043] Example 3 This embodiment provides an assembly and drive control structure for the curtain material 20 of a pull-down adjustable light-blocking sunshade. Based on Embodiments 1 and 2, the structure further integrates a mechanical drive mechanism and a control system to achieve synchronicity in the up-and-down lifting action of the curtain material and precise control of the shading angle. After the curtain material 20 has been processed and shaped as described above, its upper end is fixed inside the upper crossbeam guide seat, and its lower end is connected to the lower rod assembly 30. The upper crossbeam guide seat is equipped with a lifting shaft. The lifting shaft is supported in the crossbeam housing by needle roller bearings at both ends. A double rope traction cable is wound around the outer wall of the lifting shaft. One end of the traction cable is fixed to the lower end connection hole of the lifting plate wire, and the other end extends along the guide pulley to the lower rod assembly 30 for driving the overall lifting of the curtain material. The lower rod assembly 30 includes a balance rod body and a magnetic fixing end. The balance rod body adopts an integrated extrusion molding structure of aluminum alloy to improve stability and wear resistance. The magnetic fixing end is attracted to the corresponding ferrous adsorption area on the base through a magnet assembly to fix the sunshade at its lowest position and prevent swaying.

[0044] The lifting shaft is driven by a micro motor. The motor is a brushless geared motor with a rated voltage of 5V. It meshes with the lifting shaft through a gear transmission pair. The motor is electrically connected to the control module, which is integrated in the upper crossbeam guide seat. It has a built-in temperature sensing unit, light sensing unit, and wireless communication unit.

[0045] When the ambient light intensity exceeds a set threshold, the control module automatically drives the motor to rotate, causing the lifting shaft to wind around the traction cable, raising the curtain material, and folding the light-blocking sash to achieve a semi-shading mode. When the ambient light intensity decreases or the temperature drops, the control module drives the motor to rotate in the opposite direction, releasing the traction cable, causing the light-blocking sash to unfold, forming a full-shading mode. To prevent uneven stress on the lifting sheet wire 201 after prolonged use, resulting in tension deviation, this embodiment incorporates a tension balancing component at the connection between the traction cable and the lifting sheet wire 201. The tension balancing component includes an elastic support and a miniature limiting slider, which automatically adjusts the tension distribution during pulling, ensuring that the folding angles of adjacent light-shielding sheets 203 remain consistent.

[0046] This embodiment achieves electric control and adaptive dimming effect of the curtain material 20, ensuring smooth movement of the curtain slats and avoiding problems such as localized breakage of the slats or uneven folding. The system can also be wirelessly linked with the main control module of an aircraft cockpit or smart home to automatically adjust the lighting environment, improve comfort and energy-saving performance.

[0047] Example 4 This embodiment discloses an automated production process and quality inspection system for pull-down adjustable light-blocking sunshade curtains, aiming to improve the manufacturing efficiency and product consistency of the curtain material 20. The process includes the following steps: Step 1: Material Preparation and Pretreatment According to the design specifications, polyester composite fiber light-blocking yarn 202, high-elastic nylon lifting sheet 201, and high-temperature resistant silicone light-blocking sheet 203 were selected. After being treated with constant temperature and dehumidification, the materials entered the weaving section, where the humidity was controlled at 45% to 55% and the temperature at 20 to 25°C to prevent the fibers from absorbing moisture and causing dimensional instability. Step Two: Intelligent Weaving Stage The machine uses a fully automatic plain knitting machine (model: ZX-210A), which is controlled by a PLC and equipped with a vision correction module. It can monitor the warp and weft yarn arrangement accuracy in real time (error ≤ 0.2 mm). After knitting, it is automatically cut into curtain fabric blanks, and the production parameter data of each curtain fabric is recorded for traceability. Step 3: Laser trimming and folding shaping A high-precision laser cutting system replaces traditional mechanical trimming tools, with a cutting power set to 10-15 W and automatic focus adjustment. An AI vision recognition system identifies the A-side, C-side, and the area where the process wires intersect, performing zoned cutting. After cutting, the curtain material immediately enters the heat-setting device, where the setting temperature is 80-90℃ and the time is controlled at 60-90 seconds to stabilize the connection position between the lifting sheet and the light-blocking sheet. Step 4: Automated Assembly and Calibration Testing After being shaped, the curtain material is automatically assembled onto the upper crossbeam guide seat by a robotic arm, completing the connection between the traction cable and the lifting shaft.

[0048] The system uses a tension sensing module to detect the tension distribution of each lifting wire. When the deviation exceeds ±5%, it automatically corrects the length of the traction cable. Subsequently, a folding-unfolding action test was performed, with 50 test cycles, to check the consistency of folding angle, recovery time, and shading ratio parameters. Step 5: Overall Machine Inspection and Factory Verification After the finished curtain material 20 is assembled, it enters the full-function testing line to complete the following tests in sequence: light blocking ratio test (light blocking ratio ≥98%), temperature control response test (stable control within ±1℃ error range), and life test (>10,000 cycles without breakage). After passing the inspection, the products are automatically packaged and labeled with a QR code for after-sales traceability.

[0049] This embodiment achieves integrated operation of weaving, trimming, and shaping through an intelligent production line, which greatly improves production efficiency and consistency. It adopts AI visual recognition and laser cutting technology to ensure that the cut is flat and free of burrs, improves folding accuracy, and the automatic tension detection and correction technology reduces manual adjustment. At the same time, the data traceability system ensures batch traceability and quality stability.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pull-down adjustable light-blocking sunshade, comprising a main body (1), characterized in that: The main body (1) is composed of a curtain frame assembly (10), curtain material (20), and lower rod assembly (30) assembled together. The upper end of the curtain material (20) is fixed to the curtain frame assembly (10), and the lower end of the curtain material (20) is fixed to the lower rod assembly (30); The curtain frame assembly (10) includes pull beads (101) that can be pulled forward and backward, which can make the curtain (20) rise and fall, and simultaneously open and fold the light-blocking sheets (203) of the curtain (20). The two adjacent light-blocking sheets (203) that are opened join together to block the light. When the curtain material (20) is pulled by the pull bead (101), the light-blocking sheet (203) changes its open and folded state.

2. The pull-down adjustable light-blocking sunshade curtain according to claim 1, characterized in that: The curtain frame assembly (10) includes a pull bead (101), a control head (102), a round tube assembly (103), a tail plug (104), and an upper cover (105). The upper cover (105) is provided with a round tube assembly (103). The control head (102) is provided on one side of the upper cover (105), and the tail plug (104) is provided on the other side of the upper cover (105). The control head (102) and the tail plug (104) are both sleeved with both ends of the round tube assembly (103). The control head (102) is provided with a pull bead (101). When the pull bead (101) is pulled, the pull bead (101) pulls the ratchet assembly inside the control head (102) to rotate. The rotating ratchet assembly synchronously drives the round tube assembly (103) to rotate. The round tube assembly (103) includes a lifting strip pull wire clamp (1031), a curtain material clamp (1032), and a grooved round tube (1033). The round tube assembly (103) has symmetrically recessed grooves on both sides of its outer circumference. The lifting strip pull wire clamp (1031) is provided in the groove. The lifting strip pull wire clamp (1031) and the curtain material clamp (1032) simultaneously clamp one end of the curtain material (20).

3. The pull-down adjustable light-blocking sunshade curtain according to claim 1, characterized in that: The curtain material (20) includes lifting strips (201), light-blocking yarn (202) and light-blocking sheets (203). The light-blocking yarn (202) has several lifting strips (201) arranged longitudinally. The light-blocking yarn (202) has several light-blocking sheets (203) evenly distributed from top to bottom. The lower end of the curtain material (20) is provided with a lower rod (302) to wrap, fix and support the weight. The upper end of the light-blocking sheet (203) is horizontally connected to the light-blocking yarn (202), and the lower end of the light-blocking sheet (203) is suspended and connected to several lifting strips (201). When the lifting strips (201) are pulled upward, the lower end of the light-blocking sheet (203) is pulled upward synchronously with the lifting strips (201) so that the light-blocking yarn (202) is unobstructed. When the lifting strips (201) are moved downward, the lower end of the light-blocking sheet (203) is restored and extended downward synchronously with the lifting strips (201), and the light-blocking sheet (203) blocks the light-blocking yarn (202).

4. The pull-down adjustable light-blocking sunshade curtain according to claim 1, characterized in that: The lower rod assembly (30) includes a lower rod (302), with lower rod caps (301) on both sides of the lower rod (302), and a clip (303) for fixing the curtain material (20) is provided in the inner cavity of the lower rod (302). The lower rod (302) has openings at both the upper and lower ends. The lower opening is connected to an I-shaped anti-collision strip (304), which extends beyond the opening at the lower end of the lower rod (302).

5. A method for processing the curtain material of a pull-down adjustable light-blocking sunshade curtain, characterized in that: The processing method of the curtain material (20) includes the following steps: Step 1: Weaving Several warp process yarns (204) are output. Based on the overall width and design density requirements of the curtain fabric, long filaments are selected as warp process yarns (204). The warp process yarns (204) are first warped to a fixed length on the warping machine to ensure uniform yarn tension and avoid curtain warping or uneven weft density due to tension differences. After warping, the process yarns (204) are wound onto the warp beam, which is installed on the warp frame of the weaving equipment. The yarns are then introduced into the loom sequentially through guide rollers and yarn dividers to form a uniform and parallel warp arrangement, providing a foundation for the subsequent interweaving of the blackout yarn and the lifting sheet yarn. The upper end of the process yarn (204) outputs the light-blocking yarn (202), which is the main light-blocking layer in the weaving structure. It is made of coated polyester yarn or high-density nylon yarn, and the surface is treated with anti-ultraviolet and anti-static finishing. The light-blocking yarn (202) is output from the yarn frame and evenly distributed above the warp process yarn by the guide roller. Under the control of the shedding device of the weaving machine, it interweaves with the warp process yarn to form an initial mesh structure. During this process, the tension of the light-blocking yarn (202) is set between 15 and 25 cN / tex and is adjusted in real time by an electronic tension controller to ensure that the light-blocking yarn does not wrinkle or break during the interlacing process. Several lifting wires (201) are evenly arranged on the upper surface of the blackout yarn (202). The lifting wires (201) are the supporting and light-adjusting transmission units of the curtain structure. They are evenly arranged on the upper surface of the blackout yarn (202). The diameter of the lifting wires (201) is between 0.15 and 0.30 mm, and they need to have good flexibility and tensile strength. The arrangement of the lifting wires (201) is completed by an automatic wire guiding mechanism. They are evenly distributed in the transverse direction of the curtain at a predetermined interval. After the arrangement is completed, the lifting wires are pressed lightly by a temporary pressure roller to make them fit with the blackout yarn, laying the foundation for the subsequent installation of the blackout sheet. The upper surface of the lifting sheet (201) is uniformly arranged with several light-blocking sheets (203) from top to bottom. The light-blocking sheets (203) are key components for controlling the angle of light transmission. After pre-cutting into strips, their width is consistent with the design spacing of the curtain fabric. During the weaving process, the lifting sheet (201) serves as the supporting layer for the light-blocking sheets (203). The light-blocking sheets (203) are inserted or woven into the gaps between the lifting sheets from top to bottom. The upper and lower edges of each light-blocking sheet (203) are fixed to the lifting sheet through hot pressing or spot bonding processes, so that it can maintain synchronous rotation and lifting during subsequent pulling. The density of the light-blocking sheets is controlled at one sheet every 25-30 mm to ensure the overall uniformity of light blocking. Between adjacent light-blocking sheets (203) is a light-blocking yarn and sheet interlacing interval (205). To achieve adjustable light transmission, a light-blocking yarn and sheet interlacing interval (205) needs to be set between adjacent light-blocking sheets (203). This interval is automatically controlled by the heddle selection mechanism of the loom. By controlling the lifting of the sheet and the alternating up and down interlacing of the yarn in a local area, the light-blocking yarn forms a tight weave structure in this area. The interlacing interval (205) is used to connect adjacent light-blocking sheets and plays a role in overall support and tensile resistance of the curtain. The weaving tension is slightly higher than that of the light-blocking sheet area. The lifting strip (201) is connected at the lower end of each piece of blackout yarn (202). After the main body of the curtain fabric is woven, the lower ends of the lifting strip (201) and each piece of blackout yarn (202) need to be connected at a point using ultrasonic hot melting and hot pressing. This allows the lifting strip (201) and the blackout yarn (202) to form stable connection points at a certain distance. Each connection point has a diameter of about 1.0 to 1.5 mm and a spacing of 10 to 15 cm. This prevents the strip from slipping or misaligning during long-term use, ensures smooth and flat winding of the curtain fabric, and maintains the accurate positioning of the blackout strip during its up-and-down movement. Step 2: Trimming and Shaping Use a trimming tool to cut open the C-surface of the weave joint between the two ends of the lifting strip (201) and the blackout yarn (202). The cutting depth should be controlled to be 90% ± 5% of the thickness of the joint layer, and the cutting width should be ≤ 0.3 mm. The cutting length should cover the entire width of each section where the lifting strip and the blackout yarn are joined. Use a trimming tool to cut open the weave joint surface A between the lower end of the lifting piece (201) and the light-blocking yarn (202), so that the lifting piece (201) can be flipped upwards. The distance from the cutting point to the lower edge of the light-blocking sheet is 2.0 to 5.0 mm (adjustable according to product specifications), with a tolerance of ±0.5 mm, to ensure that the lifting piece can be flipped upwards and can reliably support the folding action of the light-blocking sheet. Use a trimming tool to cut the weave joint between the process yarn (204) and the blackout yarn (202), and remove the process yarn (204). When cutting, the integrity of the blackout yarn should be preserved. The removal depth of the process yarn (204) should be such that it is completely separated and can be pulled out without residue. The pulling torque should be controlled between 0.5 and 2 N to avoid damaging the blackout yarn. The operation sequence and synchronous actions are as follows: First, cut the C-side. After the cut is completed, do not immediately remove the lifting piece; retain temporary clamps to prevent the lifting piece from shifting. Then, cut the lower end of the A-side so that the lower end of the lifting piece can be flipped upwards. Finally, cut and remove the process thread (204). At this time, pull the lifting piece thread (201) according to the design to check the formation effect of the folded light-blocking sheet (203) and whether the exposed width of the light-blocking yarn meets the specifications. When the lifting sheet puller (201) is pulled, the lifting sheet puller (201) can pull the lower end of each light-blocking sheet (203) to bend upward along the direction of the lifting sheet puller (201) to form a folded light-blocking sheet (203). The light-blocking yarn (202) is exposed between two adjacent folded light-blocking sheets (203). When the lifting sheet puller (201) releases its length from top to bottom, the lower end of each light-blocking sheet (203) is simultaneously extended downward from a curved position along the direction of the lifting sheet puller (201) to flatten it into a light-blocking sheet (203) before folding. The light-blocking yarn (202) is blocked by two adjacent light-blocking sheets (203) before folding.

6. The processing method of the sunshade curtain body according to claim 5, characterized in that: The light-blocking yarn (202) is a unidirectional high-density fabric with a light-blocking rate of not less than 85% and is treated with an anti-ultraviolet coating.

7. The processing method of the sunshade curtain body according to claim 5, characterized in that: The lifting sheet (201) is made of polyester fiber material, which has good tensile strength and flexibility, and is provided with a wear-resistant coating to improve service life.

8. The processing method of the sunshade curtain body according to claim 5, characterized in that: The light-shielding sheet (203) has a multi-layer composite structure, including a surface decorative layer, an intermediate light-shielding layer and a bottom support fabric, with an overall thickness of 0.2-0.5mm.

9. The processing method of the sunshade curtain body according to claim 5, characterized in that: The point-to-point connection between the lifting sheet (201) and the light-shielding sheet (203) is achieved by hot-press bonding process. The bonding points are distributed at both ends of the lower edge of the light-shielding sheet (203) to ensure a firm connection without affecting the folding and bending performance.

10. The processing method of the sunshade curtain body according to claim 5, characterized in that: During the trimming and shaping process in step two, the cutting of surface C and surface A is completed using an automatic cutting device, and the cutting accuracy error is controlled within ±0.5mm.

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