Synthetic fiber fabric constant elongation load test calibration device

Abstract

This utility model discloses a device for detecting and calibrating the constant elongation load force of synthetic fiber fabrics. The system includes a base frame, a front frame, a rear frame, a front clamping device, a rear clamping device, a weight sensor, and an automated optical grating. The front frame and the rear frame are arranged opposite to each other and are movably mounted on the base frame. The front clamping device is oscillatingly mounted on the front frame, and the rear clamping device is fixedly mounted on the rear frame, with the distance between the front clamping device and the rear clamping device being adjustable. The weight sensor is mounted on the front frame. The signal transmitting end and signal receiving end of the automated optical grating are respectively fixed on the front frame and the rear frame. This utility model can detect and calibrate the constant elongation load force of high-extensibility and high-resilience synthetic fiber fabrics, so that the constant elongation load force can be reasonably controlled during fabric dyeing, thereby ensuring the quality of fabric dyeing.

Description

Technical Field

[0001] This utility model belongs to the field of dyeing machinery technology, specifically relating to a device for testing and calibrating the load force of synthetic fiber fabrics at a constant elongation. Background Technology

[0002] Currently, elastic fabrics such as webbing, cords, and ribbons made from synthetic fibers of various specifications possessing high elongation and resilience are dyed on continuous dyeing machines. This is achieved by using the load weight (or cylinder pressure) pressed onto the fabric to maintain a certain range of elongation load, thus meeting customer requirements for the fabric's elastic recovery rate. In actual production, due to the wide variety of fabric specifications and the varying quantities of fabrics dyed in the same batch, as well as differing customer requirements for elastic recovery rate, the calibration and testing of the elongation load is a crucial control factor in the dyeing process of elastic fabrics and requires careful monitoring.

[0003] Currently, the elongation load in the traditional dyeing industry is determined manually based on feel and experience. Because precise testing and quantification data are lacking, it's impossible to determine the appropriate elongation load required for the fabric's elastic recovery rate. When the elongation load is too high, the elastic fabric becomes permanently fixed at the high temperatures during dyeing, leading to decreased or even loss of elasticity. When the elongation load is too low, the elastic fabric experiences problems such as machine sluggishness, tangling, wrinkles, and creases during dyeing, and shrinkage occurs after dyeing. These issues severely affect the dyeing quality and stability of the fabric. Utility Model Content

[0004] In order to at least solve one of the problems existing in the prior art, this utility model provides a device for detecting and calibrating the constant elongation load of synthetic fiber fabrics, which can detect and calibrate the constant elongation load of synthetic fiber fabrics with high extensibility and high resilience, so that the constant elongation load of the fabric can be reasonably controlled during dyeing, thereby ensuring the quality of fabric dyeing and improving the efficiency and economic benefits of fabric dyeing.

[0005] To achieve the purpose of this utility model, the synthetic fiber fabric constant elongation load force detection and calibration device provided by this utility model includes a base frame, a front frame, a rear frame, a front clamping device, a rear clamping device, a weight sensor, and an automatic grating. The front frame and the rear frame are arranged opposite to each other and are movably mounted on the base frame; The front clamping device is oscillatingly mounted on the front frame, and the rear clamping device is fixedly mounted on the rear frame, and the distance between the front clamping device and the rear clamping device is adjustable; The weight sensor is mounted on the front frame; The signal transmitter and signal receiver of the automated grating are fixed on the front frame and the rear frame, respectively.

[0006] Furthermore, the device also includes an upper frame, a first guide rail, and a lower frame. The rear frame is disposed on the upper frame, and the upper frame is slidably disposed on the first guide rail. The distance between the front clamping device and the rear clamping device is adjusted by sliding the upper frame. The first guide rail is disposed on the lower frame, the lower frame is slidably disposed on the base frame, and the front frame is disposed on the lower frame.

[0007] Furthermore, the device also includes an electric cylinder device, the pull rod of which is connected to the upper frame.

[0008] Furthermore, the device also includes a tension cylinder, the output end of which is connected to the lower frame.

[0009] Furthermore, the device also includes a second guide rail, which is disposed on the base frame, and the lower frame is slidably disposed on the base frame via the second guide rail.

[0010] Furthermore, both the front clamping device and the rear clamping device include a cylinder assembly, a pressure beam assembly, an upper pressure die, and a lower pressure die. The output end of the cylinder assembly is connected to the pressure beam assembly. The upper pressure die and the lower pressure die are arranged opposite to each other, and the upper pressure die is connected to the pressure beam assembly. The upper pressure die and the lower pressure die are pressed and separated by the cylinder assembly.

[0011] Furthermore, the upper mold is provided with a slot, and the pressure beam assembly is provided with a buckle that cooperates with the slot.

[0012] Furthermore, it also includes a swing frame, which is oscillatingly mounted on the front frame, and the front clamping device is mounted on the swing frame.

[0013] Furthermore, the swing frame is equipped with a top ball, which can cause the front swing frame to swing in the direction of fabric travel when the fabric is tightened, thereby pressing against the weight sensor.

[0014] The synthetic fiber fabric constant elongation load testing and calibration device provided by this utility model, when working: As the fabric passes through the device, it is clamped by the front clamping device and the rear clamping device; The entire assembly moves the front and rear frames towards the front frame, and the front and rear clamping devices move accordingly, so that the fabric at the front of the device is in a relaxed state. Adjust the distance between the front clamping device and the rear clamping device. When the fabric hangs down naturally and touches the automatic grating detection point, the arch height of the fabric in the arc state and the chord length between the front clamping device and the rear clamping device are obtained by the distance between the preset automatic grating detection point and the lower pressure die plane in the front clamping device. The length of the fabric in the free state is calculated by formula. Combined with the fabric type, the fabric stretching ratio is set to obtain the fixed stretch length of the fabric. The distance between the front clamping device and the rear clamping device is controlled to reach the set fixed elongation length. The swing frame swings along the fabric towards the machine direction under the reaction force of the fabric tightened between the front clamping device and the rear clamping device, thereby pressing against the weight sensor. The fixed elongation load force is obtained by detecting the weight sensor.

[0015] Compared with the prior art, the present invention can achieve at least the following beneficial effects: This invention can simultaneously detect and calibrate the constant elongation length and constant elongation load of one or more high-elastic fabrics of the same specification, making it suitable for industrial application in laboratory and production equipment. It solves the problem that in the traditional dyeing industry, the constant elongation load is determined manually based on feel and experience. Without precise detection and quantitative data, it is impossible to determine the appropriate constant elongation load required for the fabric's elastic recovery rate. When the constant elongation load is too high, the elastic fabric becomes permanently fixed at the high temperature during dyeing, leading to decreased or even loss of elasticity. When the constant elongation load is too low, the elastic fabric experiences problems such as machine sluggishness, tangling, wrinkles, and creases during dyeing, and shrinkage occurs after dyeing, severely affecting the dyeing quality and stability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1 This is a schematic diagram of the overall structure of the synthetic fiber fabric constant elongation load testing and calibration device provided in this embodiment of the utility model.

[0017] Figure 2 This is a schematic diagram of the front clamping device in an embodiment of this utility model.

[0018] Figure 3 This is a schematic diagram of the synthetic fiber fabric constant elongation load testing and calibration device from another perspective in this utility model embodiment. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described using the same technical terms, and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of this utility model is in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Please see Figure 1 The present invention provides a calibration device for detecting and calibrating the constant elongation load of synthetic fiber fabric with high extensibility and high resilience, comprising a front frame 2, a swing frame 3, a front clamping device 4, a rear frame 5, a weight sensor 6, an automated grating 7, an upper frame 8, a first guide rail 9, a lower frame 10, a second guide rail 11, a base frame 12, an electric cylinder device 13, a tension cylinder 14, and a rear clamping device 15.

[0022] The front clamping device 4 is fixed to the swing frame 3, which is connected to the front frame 2 via bearings. This allows the front clamping device 4 to swing on the front frame 2 via the swing frame 3. When the fabric is stretched, the front clamping device 4 swings in the direction of fabric travel, thereby pressing against the weight sensor 6 to detect the fabric's constant elongation load. The rear clamping device 15 is fixed to the rear frame 5. The front frame 2 and the rear frame 5 are arranged opposite each other and are movably mounted on the base frame 12.

[0023] The weight sensor 6 is fixed to the front frame 2 and is used to detect the calibrated constant elongation load force. The front frame 2 is fixed to the lower frame 10 by bolts and moves back and forth with the lower frame 10. The lower frame 10 is slidably mounted on the second guide rail 11, and the second guide rail 11 is mounted on the base frame 12.

[0024] In one embodiment of this utility model, the rear clamping device 15 is fixed to the rear frame 5 and then slidably mounted on the first guide rail 9 after being connected to the upper frame 8. The first guide rail 9 is mounted on the lower frame 10. The fixing seat of the electric cylinder device 13 is fixed to the upper frame 8 by bolts, and the pull rod of the electric cylinder device 13 is connected to the front frame 2. The rear clamping device 15, the rear frame 5, and the upper frame 8 move back and forth along the first guide rail 9 fixed to the lower frame 10 through the drive of the electric cylinder device 13. The electric cylinder device 209 includes a motor (servo motor or frequency converter motor), gears, a lead screw nut, and a pull rod. The rotation of the motor drives the gear to drive the pull rod to move.

[0025] In one embodiment of this utility model, the fixed seat of the tension cylinder 14 is bolted to the base frame 12, and the output end, i.e., the cylinder tension rod, is connected to the lower frame 10. Through the extension and retraction of the tension cylinder 14, the front frame 2, the swing frame 3, the front clamping device 4, the rear frame 5, the weight sensor 6, the upper frame 8, and the first guide rail 9 located on the lower frame 10 can move back and forth along the second guide rail 11 fixed to the base frame 12 with the lower frame 10. The signal transmitting end and the signal receiving end of the automatic grating 7 are respectively fixed on the front frame 2 and the rear frame 5, and move accordingly.

[0026] In one embodiment of this utility model, please refer to Figure 2 Both the front clamping device 4 and the rear clamping device 15 include a cylinder assembly 401, a pressure beam assembly 402, an upper pressure mold 403, and a lower pressure mold 404. One end of the cylinder assembly 401 is bolted to the rear frame 5 or the swing frame 3. The cylinder extension rod is connected to the pressure beam assembly 402. The upper pressure mold 403 is provided with a slot, and the pressure beam assembly 402 is provided with a buckle. The slot of the upper pressure mold 403 matches and is fixed to the buckle of the pressure beam assembly 402. The lower pressure mold 404 is fixed to the rear frame 5 or the swing frame 3. The lower pressure mold 404 and the upper pressure mold 403 are arranged opposite each other. The extension and retraction of the cylinder assembly 401 causes the pressure beam assembly 402 to drive the upper pressure mold 403 to move up and down, thereby realizing the contact, pressing, and separation between the upper pressure mold 403 and the lower pressure mold 404.

[0027] The aforementioned synthetic fiber fabric constant elongation load testing and calibration device of this utility model, when in use: When high-elastic fabrics 1, such as elastic cloth tapes, ropes, and webbing, made from synthetic fibers with high extensibility and high resilience, pass through the calibration system, they are clamped by the front clamping device 4 in the front frame 2 and the rear clamping device 15 in the rear frame 5. The tension cylinder 14 mounted on the lower frame 10 drives the entire assembly except the base frame 12 to move along the second guide rail 11 toward the front frame 2, so that the high-elastic fabric at the front end A of the calibration system is in a relaxed state, eliminating the tension generated by the high-elastic fabric during the machine operation from acting on the swing frame 3, thereby allowing the swing frame 3 to be in a free state and eliminating the influence of the load force of the high-elastic fabric outside the system. Driven by the electric cylinder device 13, the upper frame 8, the rear clamping device 15, and the rear frame 5 move along the first guide rail 9 fixed to the lower frame 10 towards the front frame 2, reducing the distance between the front clamping device 4 and the rear clamping device 15. The distance length is recorded. When the fabric hangs naturally and touches the detection point of the automatic grating 7, the arch height h of the fabric in the arc state and the chord length L between the front clamping device 4 and the rear clamping device 15 are obtained by the preset distance between the detection point of the automatic grating 7 and the plane of the lower pressure mold 404 in the front clamping device 4. The controller calculates the length of the fabric in the free state (the length of the fabric between the front and rear clamping devices in the state of no tension) by formula. The fabric stretching multiple is set according to the fabric type to obtain the fixed stretch length of the fabric. In one embodiment of this utility model, the length of the fabric in its free state is 100mm. According to the process requirements, the fabric needs to be stretched by 1.05 times before dyeing to ensure the elastic recovery rate. Therefore, the fixed elongation length of the fabric is 100 x 1.05 = 105mm.

[0028]

[0029] In the formula, This represents the arc length, which is the length of the fabric in its free state. Indicates chord length, Indicates the height of the arch.

[0030] Then, the electric cylinder device 13 controls the distance between the front clamping device 4 and the rear clamping device 15 to reach the set fixed elongation length. At this time, the swing frame 3 will swing along the direction of the fabric traveling under the reaction force of the fabric tightened between the front clamping device 4 and the rear clamping device 15, so that the top ball on the swing frame 3 presses against the weight sensor 6, and the fixed elongation load force is detected by the weight sensor 6.

[0031] Users can set the calculation of the theoretical elongation percentage of high-elasticity fabric in the controller and calibrate the required constant elongation load force for the fabric in the dyeing process.

[0032] In this embodiment of the invention, the high-elastic fabric is clamped in the front clamping device 4 and the rear clamping device 15 during operation. Then, the electric cylinder device 13 controls the reduction of the distance between the front and rear clamping devices and records the length of the distance. When the fabric hangs down naturally and touches the detection point, the system calculates the length of the fabric in the free state based on the chord length and the arch height (chord length is the distance between the front and rear clamping devices, and arch height is the height from the lower pressing mold of the clamping device to the monitoring point of the automatic grating 7). The system also calculates the theoretical elongation percentage of the fabric based on the length of the fabric in the free state. Then, the electric cylinder device 13 controls the distance between the front and rear clamping devices to reach the theoretical elongation or the percentage distance required by the process. The system detects and calibrates the constant elongation load force through a weight sensor, accurately obtaining the constant elongation load force data to improve the quality of the fabric in subsequent dyeing and finishing processes.

[0033] This device can be applied to laboratory and production site equipment according to process requirements. It can detect and calibrate the constant elongation load of elastic fabrics of different materials and quantities online, which can significantly improve the quality of fabrics in subsequent printing and dyeing processes and improve the efficiency and economic benefits of fabric dyeing.

[0034] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A calibration device for testing and calibrating the load capacity at a constant elongation of synthetic fiber fabrics, characterized in that, It includes a base frame, front frame, rear frame, front clamping device, rear clamping device, weight sensor, and automated light grating; The front frame and the rear frame are arranged opposite each other and can be movably mounted on the base frame; The front clamping device is swung on the front frame, and the rear clamping device is fixed on the rear frame. The distance between the front clamping device and the rear clamping device is adjustable. The weight sensor is mounted on the front frame; The signal transmitter and signal receiver of the automated grating are fixed on the front frame and the rear frame, respectively.

2. The synthetic fiber fabric constant elongation load testing and calibration device according to claim 1, characterized in that, It also includes an upper frame, a first guide rail, and a lower frame. The rear frame is mounted on the upper frame, and the upper frame is slidably mounted on the first guide rail. The distance between the front clamping device and the rear clamping device is adjusted by sliding the upper frame. The first guide rail is mounted on the lower frame, and the lower frame is slidably mounted on the base frame. The front frame is mounted on the lower frame.

3. The synthetic fiber fabric constant elongation load testing and calibration device according to claim 1, characterized in that, It also includes an electric cylinder device, the pull rod of which is connected to the upper frame.

4. The synthetic fiber fabric constant elongation load testing and calibration device according to claim 1, characterized in that, It also includes a tension cylinder, the output end of which is connected to the lower frame.

5. The synthetic fiber fabric constant elongation load testing and calibration device according to claim 4, characterized in that, The stretching cylinder is mounted on the base frame.

6. The synthetic fiber fabric constant elongation load testing and calibration device according to claim 1, characterized in that, It also includes a second guide rail, which is mounted on the base frame, and the lower frame is slidably mounted on the base frame via the second guide rail.

7. The synthetic fiber fabric constant elongation load testing and calibration device according to claim 1, characterized in that, Both the front clamping device and the rear clamping device include a cylinder assembly, a pressure beam assembly, an upper pressure die, and a lower pressure die. The output end of the cylinder assembly is connected to the pressure beam assembly. The upper pressure die and the lower pressure die are arranged opposite to each other, and the upper pressure die is connected to the pressure beam assembly. The cylinder assembly drives the clamping and separation of the pressure die and the lower pressure die.

8. The synthetic fiber fabric constant elongation load testing and calibration device according to claim 7, characterized in that, The upper mold has a slot, and the pressure beam assembly has a buckle that mates with the slot.

9. The synthetic fiber fabric constant elongation load testing and calibration device according to any one of claims 1-8, characterized in that, It also includes a swing frame, with the swing frame swinging on the front frame and the front clamping device mounted on the swing frame.

10. The synthetic fiber fabric constant elongation load testing and calibration device according to claim 9, characterized in that, The swing frame is equipped with a top ball, which can cause the swing frame to swing in the direction of the fabric's movement when the fabric is tightened, thereby pressing against the weight sensor.

Images