Textile chemical fabric stretching device

Abstract

The utility model discloses a kind of textile chemical fiber fabric stretching devices, including cloth equipment, the top surface of the cloth equipment is fixedly connected with cloth wrinkle-removing and flattening mechanism. In cloth wrinkle-removing and flattening mechanism, plastic roller of mirror image symmetry screw groove is efficiently eliminated wrinkle by transverse shear force, cooperate the spacing design of transverse adjustment, can realize accurate wrinkle-removing to different width cloth, avoid partial wrinkle residue;The elastic reset hinge of flattening subassembly is combined with rolling press wheel, both ensure that cloth surface is continuously pressed flat, and also buffer the impact caused by thickness fluctuation by adaptive swing, reduce cloth damage risk;Plastic roller driven by servo electric cylinder can independently control down pressure depth, combined with three-roller pressure dynamic adjustment function, realize the subarea collaborative optimization of tensile strength and wrinkle-removing strength, overall device has efficient wrinkle-removing, adaptive flattening and cloth protection function.

Description

Technical Field

[0001] This utility model relates to the field of fabric stretching equipment technology, specifically to a stretching device for textile and chemical fiber fabrics. Background Technology

[0002] In the production of textile and chemical fiber fabrics, fabric stretching is a crucial step in improving the fabric's physical properties, directly affecting core indicators such as breaking strength, elongation, and abrasion resistance. Existing technologies generally employ fixed-structure stretching roller combinations, achieving fabric stretching through the speed difference between the rollers. However, this approach suffers from several technical bottlenecks: fabrics are prone to wrinkling due to tension fluctuations during transport. Traditional devices often rely on a single pressure roller for flattening, but the contact area between the pressure roller and the fabric is limited, and there is a lack of an active traction structure for wrinkles. For example, nylon fabric is prone to axial wrinkles during high-speed stretching, and existing pressure rollers cannot accurately locate the wrinkles and apply lateral stretching force, resulting in a high wrinkle residue rate requiring manual secondary processing and increasing production costs. Therefore, this paper proposes a solution for a textile and chemical fiber fabric stretching device to address these issues. Utility Model Content

[0003] The purpose of this utility model is to provide a technical solution for a stretching device for textile and chemical fiber fabrics, thereby addressing the shortcomings mentioned in the background art. To overcome the drawbacks and defects described in the background art, this technical solution includes the following:

[0004] The device includes a fabric stretching device, on the top surface of which a fabric de-pleating and flattening mechanism is fixedly connected; the fabric stretching device includes a support frame, a crossbeam fixed to the top of the support frame, and a rear stretching roller, a middle stretching roller, and a front stretching roller rotatably disposed inside the support frame.

[0005] The fabric depletion and flattening mechanism includes a slide rail, two sliders that are symmetrically arranged in a left-right mirror image on the slide rail, and a depletion component is fixed to the front end face of each slider. A flattening component is provided in the middle section of the front side of the slide rail.

[0006] The flattening assembly includes an arched rod, a reset hinge fixed to the rear end of the arched rod, and a roller rotatably disposed at the front end of the arched rod.

[0007] Each of the wrinkle removal components includes an L-shaped connecting plate, a servo electric cylinder fixed to the front end face of the L-shaped connecting plate, and a sealed bearing fixed to the bottom telescopic end of the servo electric cylinder. A plastic roller is rotatably connected inside the sealed bearing. Threaded grooves are opened on the outer ring surface of the plastic roller. The threaded grooves on the left and right sides of the plastic roller are arranged in a mirror-symmetrical manner.

[0008] As a preferred embodiment of this utility model: cylinders are installed on the top rear side, middle section and front left and right sides of the bracket, and the telescopic shaft ends of the cylinders are rotatably connected to the two ends of the rear stretching roller, the middle stretching roller and the front stretching roller respectively through the bearing seat.

[0009] As a preferred embodiment of this utility model: chemical fiber fabric is wound on the outer ring surface of the rear stretching roller, the middle stretching roller and the front stretching roller for stretching the chemical fiber fabric.

[0010] As a preferred embodiment of this utility model, the rear end face of the slide rail is fixedly connected to the front end face of the crossbeam.

[0011] As a preferred embodiment of this utility model: each of the L-shaped connecting plates is inlaid with a nut, and a lead screw is provided through the nut, with handwheels fixed at both ends of the lead screw.

[0012] As a preferred embodiment of this utility model: the rear sections of both the left and right sides of the bracket are fixedly connected to fixing plates, and ball bearings adapted to the left and right sections of the lead screw are embedded and fixed inside the fixing plates.

[0013] As a preferred embodiment of this utility model: the end of the reset hinge away from the arched rod is fixedly connected to the top surface of the crossbeam, and the outer ring surface of the roller is in contact with the chemical fiber fabric.

[0014] As a preferred embodiment of this utility model, the flattening assembly further includes a T-shaped seat fixed to the middle section of the front side of the crossbeam, and a bearing fixed to the front side of the T-shaped seat and adapted to the middle section of the outer ring of the lead screw.

[0015] As a preferred embodiment of this utility model: the outer ring surface of the plastic roller is in contact with the chemical fiber fabric, and the threaded grooves on the surface of the plastic roller are used to stretch and straighten the chemical fiber fabric to the left and right.

[0016] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0017] In the fabric de-crease and flattening mechanism, the mirror-symmetrical threaded grooved plastic rollers efficiently eliminate wrinkles through lateral shearing force. Combined with the laterally adjustable spacing design, it can achieve precise de-crease removal for fabrics of different widths, avoiding localized wrinkle residue. The combination of the elastic reset hinge and rolling pressure rollers in the flattening component ensures that the fabric surface is continuously pressed flat, while the adaptive swing buffers the impact caused by thickness fluctuations, reducing the risk of fabric damage. The servo-driven plastic rollers can independently control the pressing depth. Combined with the three-roller pressure dynamic adjustment function, it achieves regional synergistic optimization of tensile strength and de-crease force. The overall device combines efficient de-crease removal, adaptive flattening, and fabric protection functions. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the fabric spreading machine;

[0020] Figure 2 This is a schematic diagram of a fabric spreading machine.

[0021] Figure 3 A schematic diagram of a fabric de-pleating and flattening mechanism;

[0022] Figure 4 This is a schematic diagram of the deflation assembly;

[0023] Figure 5 This is a schematic diagram of the flattening component.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Fabric stretching device; 11. Support frame; 12. Rear stretching roller; 13. Crossbeam; 14. Middle stretching roller; 15. Front stretching roller; 2. Fabric depletion and flattening mechanism; 21. Slide rail; 22. Flattening assembly; 221. Arch rod; 222. Reset hinge; 223. T-shaped seat; 224. Bearing; 225. Roller; 23. Depletion assembly; 231. L-shaped connecting plate; 232. Servo electric cylinder; 233. Nut; 234. Sealed bearing; 235. Plastic roller; 24. Lead screw; 25. Slider; 26. Fixing plate; 27. Handwheel. Detailed Implementation

[0026] To provide a clearer explanation and description of the technical solution and implementation of this utility model, several preferred specific embodiments for implementing the technical solution of this utility model are introduced below.

[0027] The following description is exemplary in nature and is not intended to limit the scope, application, or use of this disclosure. It should be understood that in all these figures, the same or similar reference numerals indicate the same or similar parts and features. The figures are merely schematic representations of the concept and principles of embodiments of this disclosure and do not necessarily show the specific dimensions and scale of each embodiment. Specific details or structures of embodiments of this disclosure may be exaggerated in particular portions of certain figures. The disclosures of various publications, patents, and published patent specifications cited herein are incorporated herein by reference in their entirety. The technical solutions of this utility model will be clearly and completely described below in conjunction with embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model.

[0028] Example 1: The textile and chemical fiber fabric stretching device includes a fabric stretching device 1 and a fabric de-pleating and flattening mechanism 2. A crossbeam 13 is fixed to the top of the support 11 of the fabric stretching device 1. Internally, a rear stretching roller 12, a middle stretching roller 14, and a front stretching roller 15 are connected via a cylinder bearing. The chemical fiber fabric is sequentially wound around the outer ring of the three rollers. The rear end of the slide rail 21 of the fabric de-pleating and flattening mechanism 2 is fixed to the front side of the crossbeam 13. A de-pleating component 23 mounted on the slider 25 is connected to a servo cylinder 232 via an L-shaped connecting plate 231. Its bottom telescopic end is rotatably connected to a plastic roller 235 via a sealed bearing 234. The outer ring threaded grooves of the plastic roller are mirror-symmetrical. The arched rod 221 of the flattening component 22 is connected to the crossbeam 13 via a reset hinge 222, and the front roller 225 contacts the fabric surface. During operation, the cylinder drives the three rollers to rotate and stretch the fabric, the servo electric cylinder 232 pushes the plastic roller 235 to press down the fabric, and the left and right mirrored threaded grooves stretch the fabric folds to both sides. The roller 225 moves with the fabric and keeps it flat.

[0029] Example 2: This example optimizes the adjustment function of the defrosting component 23 based on Example 1. A nut 233 is embedded inside the L-shaped connecting plate 231. A lead screw 24 passes through the nut 233 and is fixed at both ends with handwheels 27. The rear fixing plates 26 on both sides of the bracket 11 support the lead screw 24 via ball bearings. Before operation, rotating the handwheels 27 drives the lead screw 24 to rotate. The nut 233 drives the slider 25 to move laterally along the slide rail 21, adjusting the distance between the two plastic rollers 235 to accommodate fabrics of different widths. After adjustment, when the plastic rollers 235 press down on the fabric, their threaded grooves stretch the fabric to both sides, cooperating with the rollers 225 to flatten it, achieving an adjustable-width defrosting operation.

[0030] Example 3: In this example, the cylinders on the rear, middle, and front sides of the top of the support 11 independently control the pressure of the rear stretching roller 12, the middle stretching roller 14, and the front stretching roller 15. During operation, the pressure of the three rollers on the fabric is changed by adjusting the length of the cylinder extension shaft according to the fabric thickness or material. For example, when processing thicker synthetic fiber fabrics, the pressure of the cylinder on the middle stretching roller 14 is increased to enhance the stretching effect; when processing thinner fabrics, the pressure of the rear stretching roller 12 is reduced to avoid excessive stretching of the fabric. The fabric de-pleating and flattening mechanism 2 operates synchronously, with the plastic roller 235 cooperating with the roller 225 to complete the de-pleating and flattening under the dynamic pressure adjustment of the fabric.

[0031] Example 4: In this example, the reset hinge 222 of the flattening assembly 22 adopts an elastic hinge structure, and the rear end of the arched rod 221 is connected to the top of the crossbeam 13 through the elastic hinge. During operation, the fabric changes thickness due to stretching, and the roller 225 is subjected to the lifting force of the fabric. The elastic hinge deforms, causing the arched rod 221 to rise. After the fabric passes through, the elastic hinge returns to its original deformation, driving the roller 225 to reset and flatten the fabric. At the same time, the front bearing 224 of the T-shaped seat 223 supports the middle section of the lead screw 24, reducing the impact of the lead screw 24 vibration on the flattening assembly 22 and ensuring that the roller 225 stably flattens the fabric.

[0032] Example 5: This example integrates the above functions to achieve coordinated operation of fabric stretching, pleating removal, and flattening. The fabric is sequentially wound around the rear stretching roller 12, the middle stretching roller 14, and the front stretching roller 15. The cylinder adjusts the pressure of the three rollers according to the fabric characteristics. In the fabric pleating and flattening mechanism 2, the lead screw 24 adjusts the spacing of the plastic rollers 235 via the handwheel 27, and the servo cylinder 232 pushes the plastic rollers 235 down to press the fabric, stretching the pleats to both sides through the threaded grooves. The rollers 225 of the flattening assembly 22 adaptively adjust to the fabric thickness under the action of the elastic hinge, cooperating with the plastic rollers 235 to complete pleating removal and flattening. During the operation, the fabric is stretched by the three rollers, pleated by the plastic rollers 235, and flattened by the rollers 225, achieving efficient coordinated processing.

[0033] Based on the above-described preferred technical solution, the workflow of this technical solution is explained as follows: The cylinders on the rear, middle, and front sides of the top of the support 11 drive the telescopic shafts of the rear stretching roller 12, the middle stretching roller 14, and the front stretching roller 15 respectively according to preset parameters or manual adjustment. Through the bearing seat, the three rollers are driven to adjust to a suitable height along the internal rotation axis of the support 11, so that the outer surface of the three rollers contacts the fabric and applies a preset pressure. The chemical fiber fabric is wound around the rear stretching roller 12, the middle stretching roller 14, and the front stretching roller 15 in sequence to form a conveying path. When the three rollers rotate synchronously, they generate a forward traction force on the fabric. The longitudinal stretching is achieved through the speed difference or pressure difference between the different rollers. When the fabric enters the fabric defrosting and flattening mechanism 2, the operator drives the lead screw 24 to rotate by rotating the handwheel 27. The two ends of the lead screw 24 are supported by ball bearings in the fixed plate 26. Its outer thread meshes with the nut 233 in the L-shaped connecting plate 231, driving the sliders 25 on both sides to move laterally along the slide rail 21. The distance between the two defrosting components 23 on the left and right is adjusted to match the width of the fabric. Then, the servo cylinder 232 drives the telescopic end to move downward, and drives the plastic roller 235 to contact the fabric surface through the sealed bearing 234. The mirror-symmetric thread grooves on the outer ring of the plastic roller 235 contact the fabric. During the fabric conveying process, the thread grooves apply a lateral shearing force to the fabric, stretching and straightening the pleats to both sides. At the same time, the plastic roller 235 moves freely around the sealed bearing 234 with the fabric, reducing friction damage to the fabric.

[0034] As the fabric continues to move forward to the flattening assembly 22, the roller 225 rolls on the fabric surface, with its outer ring in direct contact with the fabric. When the fabric experiences thickness fluctuations or surface unevenness due to stretching, the reset hinge 222 at the rear end of the arched rod 221 undergoes elastic deformation, allowing the arched rod 221 to swing up and down around the hinge as a fulcrum, ensuring that the roller 225 always adheres to the fabric surface. At the same time, the elastic restoring force of the reset hinge 222 applies stable pressure to the fabric, flattening its surface. When the fabric thickness changes significantly, the deformation amplitude of the elastic hinge increases. After the fabric passes through, the reset hinge 222 drives the roller 225 to automatically reset to its initial height. The bearing 224 on the front side of the T-shaped seat 223 supports the middle section of the lead screw 24, reducing the interference of the lead screw 24's vibration on the flattening assembly 22 and ensuring the smooth operation of the roller 225. After the fabric is de-pleated and flattened, it continues to be conveyed forward. The operator can dynamically adjust the cylinder pressure, the pressing amount of the servo electric cylinder 232, and the spacing of the lead screw 24 according to the real-time status of the fabric. For example, when the fabric has local wrinkles, the pressing depth of the plastic roller 235 at the corresponding position can be adjusted accordingly. When the fabric material changes and the stretching requirements change, the pressure of the three rollers is adjusted by the cylinder in conjunction with the thread groove of the plastic roller 235 to achieve secondary stretching. The flattening component 22 continuously follows the undulations of the fabric surface. The elastic buffer of the reset hinge 222 avoids sudden pressure changes. Finally, the fabric is output through the front stretching roller 15, completing the entire process from stretching to de-pleating and flattening.

[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A textile and chemical fiber fabric stretching device, comprising a fabric stretching device (1), characterized in that: A fabric de-pleating and flattening mechanism (2) is fixedly connected to the top surface of the fabric stretching device (1); The fabric stretching device (1) includes a support (11), a crossbeam (13) fixed to the top of the support (11), and a rear stretching roller (12), a middle stretching roller (14) and a front stretching roller (15) rotatably disposed inside the support (11). The fabric depletion and flattening mechanism (2) includes a slide rail (21), two sliders (25) symmetrically arranged on the slide rail (21), and a depletion component (23) fixed on the front end face of each slider (25). A flattening component (22) is provided in the middle section of the front side of the slide rail (21). The flattening assembly (22) includes an arched rod (221), a reset hinge (222) fixed to the rear end of the arched rod (221), and a roller (225) rotatably disposed at the front end of the arched rod (221). Each of the de-pleating components (23) includes an L-shaped connecting plate (231), a servo electric cylinder (232) fixed to the front end face of the L-shaped connecting plate (231), and a sealed bearing (234) fixed to the bottom telescopic end of the servo electric cylinder (232). A plastic roller (235) is rotatably connected inside the sealed bearing (234). Threaded grooves are opened on the outer ring surface of the plastic roller (235). The threaded grooves on the left and right sides of the plastic roller (235) are arranged in a mirror-symmetrical manner.

2. The textile fiber fabric stretching device according to claim 1, characterized in that: Cylinders are installed on the top rear side, middle section and front left and right sides of the bracket (11), and the telescopic shaft ends of the cylinders are rotatably connected to the two ends of the rear stretching roller (12), the middle stretching roller (14) and the front stretching roller (15) respectively through the shaft seat.

3. The textile fiber fabric stretching device according to claim 1, characterized in that: The outer surfaces of the rear stretching roller (12), the middle stretching roller (14) and the front stretching roller (15) are wrapped with chemical fiber fabric for stretching the chemical fiber fabric.

4. The textile fiber fabric stretching device according to claim 1, characterized in that: The rear end face of the slide rail (21) is fixedly connected to the front end face of the crossbeam (13).

5. The textile and chemical fiber fabric stretching device according to claim 1, characterized in that: The L-shaped connecting plate (231) is inlaid with a nut (233), and a lead screw (24) is installed through the nut (233). Handwheels (27) are fixed at both ends of the lead screw (24).

6. The textile fiber fabric stretching device according to claim 1, characterized in that: The bracket (11) is fixedly connected to the rear sections of both the left and right sides by fixing plates (26), and ball bearings adapted to the left and right sections of the lead screw (24) are embedded and fixed inside the fixing plates (26).

7. The textile fiber fabric stretching device according to claim 1, characterized in that: The end of the reset hinge (222) away from the arch rod (221) is fixedly connected to the top surface of the crossbeam (13), and the outer ring surface of the roller (225) is in contact with the chemical fiber fabric.

8. The textile and chemical fiber fabric stretching device according to claim 1, characterized in that: The flattening assembly (22) also includes a T-shaped seat (223) fixed to the middle section of the front side of the crossbeam (13), and a bearing (224) fixed to the front side of the T-shaped seat (223) and adapted to the middle section of the outer ring of the lead screw (24).

9. The textile fiber fabric stretching device according to claim 1, characterized in that: The outer ring surface of the plastic roller (235) is in contact with the chemical fiber fabric, and the threaded grooves on the surface of the plastic roller (235) are used to stretch and straighten the chemical fiber fabric to the left and right.

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